Exclude EditorViews that are mini editors from WorkspaceView::eachEditorView

Fixes #1900

.gitignore

@@ -1,4 +1,5 @@
 *.swp
+*~
 .DS_Store
 .project
 .svn

CONTRIBUTING.md

@@ -10,7 +10,7 @@ to propose changes to this document in a pull request.
     that behavior such as Emacs, vi, Xcode, etc.
   * Check the Console app for stack traces to include if reporting a crash.
   * Check the Dev tools (`alt-cmd-i`) for errors and stack traces to include.
-  
+
 ### Package Repositories
 
 This is the repository for the core Atom editor only. Atom comes bundled with
@@ -56,6 +56,7 @@ in the proper package's repository.
     * :racehorse: when improving performance
     * :non-potable_water: when plugging memory leaks
     * :memo: when writing docs
+    * :penguin: when fixing something on Linux
 
 ## CoffeeScript Styleguide
 

atom.sh

@@ -1,11 +1,13 @@
-#!/bin/sh
-ATOM_PATH=${ATOM_PATH-/Applications/Atom.app}
-ATOM_BINARY=$ATOM_PATH/Contents/MacOS/Atom
+#!/bin/bash
 
-if [ ! -d $ATOM_PATH ]; then sleep 5; fi # Wait for Atom to reappear, Sparkle may be replacing it.
-
-if [ ! -d $ATOM_PATH ]; then
-  echo "Atom application not found at '$ATOM_PATH'" >&2
+if [ "`uname`" == 'Darwin' ]; then
+  OS='Mac'
+elif [ "`expr substr $(uname -s) 1 5`" == 'Linux' ]; then
+  OS='Linux'
+elif [ "`expr substr $(uname -s) 1 10`" == 'MINGW32_NT' ]; then
+  OS='Cygwin'
+else
+  echo "Your platform (`uname -a`) is not supported."
   exit 1
 fi
 
@@ -16,7 +18,11 @@ while getopts ":wtfvhs-:" opt; do
         wait)
           WAIT=1
           ;;
-        help|version|foreground|test)
+        help|version)
+          REDIRECT_STDERR=1
+          EXPECT_OUTPUT=1
+          ;;
+        foreground|test)
           EXPECT_OUTPUT=1
           ;;
       esac
@@ -24,25 +30,63 @@ while getopts ":wtfvhs-:" opt; do
     w)
       WAIT=1
       ;;
-    h|v|f|t)
+    h|v)
+      REDIRECT_STDERR=1
+      EXPECT_OUTPUT=1
+      ;;
+    f|t)
       EXPECT_OUTPUT=1
       ;;
   esac
 done
 
-if [ $EXPECT_OUTPUT ]; then
-  $ATOM_BINARY --executed-from="$(pwd)" --pid=$$ $@
-  exit $?
-else
-  open -a $ATOM_PATH -n --args --executed-from="$(pwd)" --pid=$$ $@
+if [ $REDIRECT_STDERR ]; then
+  exec 2> /dev/null
 fi
 
-# Used to exit process when atom is used as $EDITOR
+if [ $OS == 'Mac' ]; then
+  ATOM_PATH=${ATOM_PATH:-/Applications} # Set ATOM_PATH unless it is already set
+  ATOM_APP_NAME=Atom.app
+
+  # If ATOM_PATH isn't a executable file, use spotlight to search for Atom
+  if [ ! -x "$ATOM_PATH/$ATOM_APP_NAME" ]; then
+    ATOM_PATH=$(mdfind "kMDItemCFBundleIdentifier == 'com.github.atom'" | head -1 | xargs dirname)
+  fi
+
+  # Exit if Atom can't be found
+  if [ -z "$ATOM_PATH" ]; then
+    echo "Cannot locate Atom.app, it is usually located in /Applications. Set the ATOM_PATH environment variable to the directory containing Atom.app."
+    exit 1
+  fi
+
+  if [ $EXPECT_OUTPUT ]; then
+    "$ATOM_PATH/$ATOM_APP_NAME/Contents/MacOS/Atom" --executed-from="$(pwd)" --pid=$$ "$@"
+    exit $?
+  else
+    open -a "$ATOM_PATH/$ATOM_APP_NAME" -n --args --executed-from="$(pwd)" --pid=$$ "$@"
+  fi
+elif [ $OS == 'Linux' ]; then
+  SCRIPT=`readlink -f "$0"`
+  USR_DIRECTORY=`readlink -f $(dirname $SCRIPT)/..`
+  ATOM_PATH="$USR_DIRECTORY/share/atom/atom"
+
+  [ -x "$ATOM_PATH" ] || ATOM_PATH='/tmp/atom-build/Atom/atom'
+
+  if [ $EXPECT_OUTPUT ]; then
+    "$ATOM_PATH" --executed-from="$(pwd)" --pid=$$ "$@"
+    exit $?
+  else
+    nohup "$ATOM_PATH" --executed-from="$(pwd)" --pid=$$ "$@" > /dev/null 2>&1 &
+  fi
+fi
+
+# Exits this process when Atom is used as $EDITOR
 on_die() {
   exit 0
 }
 trap 'on_die' SIGQUIT SIGTERM
 
+# If the wait flag is set, don't exit this process until Atom tells it to.
 if [ $WAIT ]; then
   while true; do
     sleep 1

build/Gruntfile.coffee

@@ -39,29 +39,35 @@ module.exports = (grunt) ->
   if process.platform is 'win32'
     appName = 'Atom'
     tmpDir = os.tmpdir()
-    installRoot = process.env.ProgramFiles
     buildDir = grunt.option('build-dir') ? path.join(tmpDir, 'atom-build')
     symbolsDir = path.join(buildDir, 'Atom.breakpad.syms')
     shellAppDir = path.join(buildDir, appName)
     contentsDir = shellAppDir
     appDir = path.join(shellAppDir, 'resources', 'app')
     atomShellDownloadDir = path.join(os.tmpdir(), 'atom-cached-atom-shells')
-  else
+    installDir = path.join(process.env.ProgramFiles, appName)
+  else if process.platform is 'darwin'
     appName = 'Atom.app'
     tmpDir = '/tmp'
-    installRoot = '/Applications'
     buildDir = grunt.option('build-dir') ? path.join(tmpDir, 'atom-build')
     symbolsDir = path.join(buildDir, 'Atom.breakpad.syms')
     shellAppDir = path.join(buildDir, appName)
     contentsDir = path.join(shellAppDir, 'Contents')
     appDir = path.join(contentsDir, 'Resources', 'app')
     atomShellDownloadDir = '/tmp/atom-cached-atom-shells'
-
-  installDir = path.join(installRoot, appName)
+    installDir = path.join('/Applications', appName)
+  else
+    appName = 'Atom'
+    tmpDir = '/tmp'
+    buildDir = grunt.option('build-dir') ? path.join(tmpDir, 'atom-build')
+    symbolsDir = path.join(buildDir, 'Atom.breakpad.syms')
+    shellAppDir = path.join(buildDir, appName)
+    contentsDir = shellAppDir
+    appDir = path.join(shellAppDir, 'resources', 'app')
+    atomShellDownloadDir = '/tmp/atom-cached-atom-shells'
+    installDir = process.env.INSTALL_PREFIX ? '/usr/local'
 
   coffeeConfig =
-    options:
-      sourceMap: true
     glob_to_multiple:
       expand: true
       src: [
@@ -227,4 +233,7 @@ module.exports = (grunt) ->
   grunt.registerTask('test', ['shell:kill-atom', 'run-specs'])
   grunt.registerTask('ci', ['output-disk-space', 'download-atom-shell', 'build', 'dump-symbols', 'set-version', 'check-licenses', 'lint', 'test', 'codesign', 'publish-build'])
   grunt.registerTask('docs', ['markdown:guides', 'build-docs'])
-  grunt.registerTask('default', ['download-atom-shell', 'build', 'set-version', 'install'])
+
+  defaultTasks = ['download-atom-shell', 'build', 'set-version']
+  defaultTasks.push 'install' unless process.platform is 'linux'
+  grunt.registerTask('default', defaultTasks)

build/package.json

@@ -17,22 +17,23 @@
     "grunt-contrib-csslint": "~0.1.2",
     "grunt-contrib-coffee": "~0.9.0",
     "grunt-contrib-less": "~0.8.0",
-    "grunt-cson": "0.6.0",
-    "grunt-download-atom-shell": "git+https://atom-bot:467bac80a0017b96fb5be5cfc686f5e0cc607b10@github.com/atom/grunt-download-atom-shell#v0.6.0",
+    "grunt-cson": "0.8.0",
+    "grunt-download-atom-shell": "git+https://atom-bot:467bac80a0017b96fb5be5cfc686f5e0cc607b10@github.com/atom/grunt-download-atom-shell#v0.6.1",
     "grunt-lesslint": "0.13.0",
     "grunt-markdown": "~0.4.0",
     "grunt-peg": "~1.1.0",
     "grunt-shell": "~0.3.1",
     "harmony-collections": "~0.3.8",
     "json-front-matter": "~0.1.3",
-    "legal-eagle": "~0.3.0",
-    "minidump": "0.4.x",
+    "legal-eagle": "~0.4.0",
+    "minidump": "0.5.x",
     "rcedit": "~0.1.2",
     "request": "~2.27.0",
     "rimraf": "~2.2.2",
     "runas": "0.5.x",
     "underscore-plus": "1.x",
     "unzip": "~0.1.9",
-    "vm-compatibility-layer": "~0.1.0"
+    "vm-compatibility-layer": "~0.1.0",
+    "npm": "~1.4.5"
   }
 }

build/tasks/build-task.coffee

@@ -14,7 +14,7 @@ module.exports = (grunt) ->
 
     if process.platform is 'darwin'
       cp 'atom-shell/Atom.app', shellAppDir
-    else if process.platform is 'win32'
+    else
       cp 'atom-shell', shellAppDir
 
     mkdir appDir
@@ -47,7 +47,9 @@ module.exports = (grunt) ->
       path.join('less', 'test')
       path.join('bootstrap', 'docs')
       path.join('bootstrap', 'examples')
-      path.join('spellchecker', 'vendor')
+      path.join('pegjs', 'examples')
+      # Add .* to avoid matching hunspell_dictionaries.
+      path.join('spellchecker', 'vendor', 'hunspell', '.*')
       path.join('xmldom', 'test')
       path.join('jasmine-reporters', 'ext')
       path.join('build', 'Release', 'obj.target')
@@ -56,6 +58,9 @@ module.exports = (grunt) ->
       path.join('resources', 'mac')
       path.join('resources', 'win')
     ]
+    # Hunspell dictionaries are only not needed on OS X.
+    if process.platform is 'darwin'
+      ignoredPaths.push path.join('spellchecker', 'vendor', 'hunspell_dictionaries')
     ignoredPaths = ignoredPaths.map (ignoredPath) -> "(#{ignoredPath})"
     nodeModulesFilter = new RegExp(ignoredPaths.join('|'))
     packageFilter = new RegExp("(#{ignoredPaths.join('|')})|(.+\\.(cson|coffee)$)")

build/tasks/docs-task.coffee

@@ -143,6 +143,8 @@ downloadFileFromRepo = ({repo, file}, callback) ->
 
 downloadIncludes = (callback) ->
   includes = [
+    {repo: 'atom-keymap', file: 'src/keymap.coffee'}
+    {repo: 'atom-keymap', file: 'src/key-binding.coffee'}
     {repo: 'first-mate',  file: 'src/grammar.coffee'}
     {repo: 'first-mate',  file: 'src/grammar-registry.coffee'}
     {repo: 'node-pathwatcher', file: 'src/directory.coffee'}

build/tasks/install-task.coffee

@@ -1,4 +1,6 @@
+fs = require 'fs'
 path = require 'path'
+fs = require 'fs-plus'
 runas = null
 
 module.exports = (grunt) ->
@@ -15,7 +17,23 @@ module.exports = (grunt) ->
 
       createShortcut = path.resolve 'script', 'create-shortcut.cmd'
       runas('cmd', ['/c', createShortcut, path.join(installDir, 'atom.exe'), 'Atom'])
-    else
+    else if process.platform is 'darwin'
       rm installDir
       mkdir path.dirname(installDir)
       cp shellAppDir, installDir
+    else
+      binDir = path.join(installDir, 'bin')
+      shareDir = path.join(installDir, 'share', 'atom')
+
+      mkdir binDir
+      cp 'atom.sh', path.join(binDir, 'atom')
+      rm shareDir
+      mkdir path.dirname(shareDir)
+      cp shellAppDir, shareDir
+
+      # Create relative symbol link for apm.
+      process.chdir(binDir)
+      rm('apm')
+      fs.symlinkSync(path.join('..', 'share', 'atom', 'resources', 'app', 'apm', 'node_modules', '.bin', 'apm'), 'apm')
+
+      fs.chmodSync(path.join(shareDir, 'atom'), "755")

build/tasks/mkdeb-task.coffee

@@ -0,0 +1,31 @@
+fs = require 'fs'
+path = require 'path'
+_ = require 'underscore-plus'
+
+fillTemplate = (filePath, data) ->
+  template = _.template(String(fs.readFileSync(filePath + '.in')))
+  filled = template(data)
+  fs.writeFileSync(filePath, filled)
+
+module.exports = (grunt) ->
+  {spawn} = require('./task-helpers')(grunt)
+
+  grunt.registerTask 'mkdeb', 'Create debian package', ->
+    done = @async()
+
+    {name, version, description} = grunt.file.readJSON('package.json')
+    section = 'devel'
+    arch = 'amd64'
+    maintainer = 'GitHub <atom@github.com>'
+    data = {name, version, description, section, arch, maintainer}
+
+    control = path.join('resources', 'linux', 'debian', 'control')
+    fillTemplate(control, data)
+    desktop = path.join('resources', 'linux', 'Atom.desktop')
+    fillTemplate(desktop, data)
+    icon = path.join('resources', 'atom.png')
+    buildDir = grunt.config.get('atom.buildDir')
+
+    cmd = path.join('script', 'mkdeb')
+    args = [version, control, desktop, icon, buildDir]
+    spawn({cmd, args}, done)

build/tasks/set-version-task.coffee

@@ -48,3 +48,5 @@ module.exports = (grunt) ->
 
         rcedit = require('rcedit')
         rcedit(shellExePath, {'version-string': strings}, done)
+      else
+        done()

docs/advanced/keymaps.md

@@ -83,6 +83,22 @@ file. For now, we've opted to handle cases where selector ordering is critical
 by breaking the keymap into two separate files, such as `snippets-1.cson` and
 `snippets-2.cson`.
 
+## Removing Bindings
+
+When the keymap system encounters a binding with the `unset!` directive as its
+command, it will treat the current element as if it had no key bindings matching
+the current keystroke sequence and continue searching from its parent. If you
+want to remove a binding from a keymap you don't control, such as keymaps in
+Atom core or in packages, use the `unset!` directive.
+
+## Forcing Chromium's Native Keystroke Handling
+
+If you want to force the native browser behavior for a given keystroke, use the
+`native!` directive as the command of a binding. This can be useful to enable
+the correct behavior in native input elements, for example. If you apply the
+`.native-key-bindings` class to an element, all the keystrokes typically handled
+by the browser will be assigned the `native!` directive.
+
 ## Overloading Key Bindings
 
 Occasionally, it makes sense to layer multiple actions on top of the same key

docs/advanced/serialization.md

@@ -19,7 +19,7 @@ module.exports =
   activate: (state) ->
     @myObject =
       if state
-        deserialize(state)
+        atom.deserializers.deserialize(state)
       else
         new MyObject("Hello")
 
@@ -31,7 +31,8 @@ module.exports =
 
 ```coffee-script
 class MyObject
-  registerDeserializer(this)
+  atom.deserializers.add(this)
+
   @deserialize: ({data}) -> new MyObject(data)
   constructor: (@data) ->
   serialize: -> { deserializer: 'MyObject', data: @data }
@@ -50,8 +51,8 @@ class-level method on the same class that implements `serialize`. This method's
 job is to convert a state object returned from a previous call `serialize` back
 into a genuine object.
 
-#### registerDeserializer(klass)
-You need to call the global `registerDeserializer` method with your class in
+#### atom.deserializers.add(klass)
+You need to call the `atom.deserializers.add` method with your class in
 order to make it available to the deserialization system. Now you can call the
 global `deserialize` method with state returned from `serialize`, and your
 class's `deserialize` method will be selected automatically.
@@ -60,14 +61,15 @@ class's `deserialize` method will be selected automatically.
 
 ```coffee-script
 class MyObject
+  atom.deserializers.add(this)
+
   @version: 2
   @deserialize: (state) -> ...
-  serialize: -> { version: MyObject.version, ... }
+  serialize: -> { version: @constructor.version, ... }
 ```
 
 Your serializable class can optionally have a class-level `@version` property
 and include a `version` key in its serialized state. When deserializing, Atom
 will only attempt to call deserialize if the two versions match, and otherwise
 return undefined. We plan on implementing a migration system in the future, but
-this at least protects you from improperly deserializing old state. If you find
-yourself in dire need of the migration system, let us know.
+this at least protects you from improperly deserializing old state.

docs/creating-a-package.md

@@ -130,7 +130,7 @@ Ideally, you won't need much in the way of styling. We've provided a standard
 set of components which define both the colors and UI elements for any package
 that fits into Atom seamlessly. You can view all of Atom's UI components by opening
 the styleguide: open the command palette (`cmd-shift-P`) and search for _styleguide_,
-or just type `cmd-ctrl-G`.
+or just type `cmd-ctrl-shift-G`.
 
 If you _do_ need special styling, try to keep only structural styles in the package
 stylesheets. If you _must_ specify colors and sizing, these should be taken from

docs/creating-a-theme.md

@@ -51,7 +51,7 @@ editor such as comments, strings and the line numbers in the gutter.
 
 As an example, let's make the `.gutter` `background-color` into `@red`.
 
-Reload Atom by pressing `cmd-alt-option-L` to see the changes you made reflected
+Reload Atom by pressing `cmd-alt-ctrl-l` to see the changes you made reflected
 in your Atom window. Pretty neat!
 
 __Tip:__ You can avoid reloading to see changes you make by opening an atom

docs/getting-started.md

@@ -73,7 +73,7 @@ from.
 You can split any editor pane horizontally or vertically by using `cmd-k right`
 or `cmd-k down`. Once you have a split pane, you can move focus between them
 with `cmd-k cmd-right` or `cmd-k cmd-down`. To close a pane, close all its
-editors with `meta-w`, then press `meta-w` one more time to close the pane. You
+editors with `cmd-w`, then press `cmd-w` one more time to close the pane. You
 can configure panes to auto-close when empty in the Settings view.
 
 ### Folding

dot-atom/keymap.cson

@@ -12,7 +12,7 @@
 # '.editor':
 #   'enter': 'editor:newline'
 #
-# 'body':
+# '.workspace':
 #   'ctrl-P': 'core:move-up'
 #   'ctrl-p': 'core:move-down'
 #

keymaps/base.cson

@@ -9,9 +9,6 @@
   'shift-home': 'editor:select-to-first-character-of-line'
   'shift-end': 'editor:select-to-end-of-line'
 
-  # Sublime Parity
-  'ctrl-t': 'editor:transpose'
-
 '.editor:not(.mini)':
   # Atom Specific
   'ctrl-C': 'editor:copy-path'
@@ -21,8 +18,6 @@
   'enter': 'editor:newline'
   'shift-tab': 'editor:outdent-selected-rows'
   'ctrl-K': 'editor:delete-line'
-  'ctrl-shift-up': 'editor:add-selection-above'
-  'ctrl-shift-down': 'editor:add-selection-below'
 
 '.tool-panel.panel-left, .tool-panel.panel-right':
   'escape': 'tool-panel:unfocus'

keymaps/darwin.cson

@@ -96,6 +96,7 @@
 '.editor':
   # Apple Specific
   'cmd-backspace': 'editor:backspace-to-beginning-of-line'
+  'cmd-shift-backspace': 'editor:backspace-to-beginning-of-line'
   'cmd-delete': 'editor:backspace-to-beginning-of-line'
   'ctrl-A': 'editor:select-to-first-character-of-line'
   'ctrl-E': 'editor:select-to-end-of-line'
@@ -118,6 +119,7 @@
   'cmd-k cmd-u': 'editor:upper-case'
   'cmd-k cmd-l': 'editor:lower-case'
   'cmd-l': 'editor:select-line'
+  'ctrl-t': 'editor:transpose'
 
 '.workspace .editor:not(.mini)':
   # Atom specific
@@ -136,6 +138,8 @@
   'cmd-j': 'editor:join-lines'
   'cmd-D': 'editor:duplicate-lines'
   'cmd-L': 'editor:split-selections-into-lines'
+  'ctrl-shift-up': 'editor:add-selection-above'
+  'ctrl-shift-down': 'editor:add-selection-below'
 
   'cmd-alt-[': 'editor:fold-current-row'
   'cmd-alt-]': 'editor:unfold-current-row'

keymaps/linux.cson

@@ -0,0 +1,112 @@
+'body':
+  # Atom Specific
+  'enter': 'core:confirm'
+  'escape': 'core:cancel'
+  'up': 'core:move-up'
+  'down': 'core:move-down'
+  'left': 'core:move-left'
+  'right': 'core:move-right'
+  'ctrl-alt-r': 'window:reload'
+  'ctrl-alt-i': 'window:toggle-dev-tools'
+  'ctrl-alt-p': 'window:run-package-specs'
+  'ctrl-alt-s': 'application:run-all-specs'
+  'ctrl-shift-o': 'application:open-dev'
+  'F11': 'window:toggle-full-screen'
+
+  # Sublime Parity
+  'ctrl-N': 'application:new-window'
+  'ctrl-W': 'window:close'
+  'ctrl-o': 'application:open-file'
+  'ctrl-q': 'application:quit'
+  'ctrl-T': 'pane:reopen-closed-item'
+  'ctrl-n': 'application:new-file'
+  'ctrl-s': 'core:save'
+  'ctrl-S': 'core:save-as'
+  'ctrl-w': 'core:close'
+  'ctrl-z': 'core:undo'
+  'ctrl-y': 'core:redo'
+  'ctrl-x': 'core:cut'
+  'ctrl-c': 'core:copy'
+  'ctrl-v': 'core:paste'
+  'shift-up': 'core:select-up'
+  'shift-down': 'core:select-down'
+  'shift-left': 'core:select-left'
+  'shift-right': 'core:select-right'
+  'delete': 'core:delete'
+  'pageup': 'core:page-up'
+  'pagedown': 'core:page-down'
+  'backspace': 'core:backspace'
+  'ctrl-tab': 'pane:show-next-item'
+  'ctrl-shift-tab': 'pane:show-previous-item'
+  'ctrl-shift-up': 'core:move-up'
+  'ctrl-shift-down': 'core:move-down'
+  'ctrl-=': 'window:increase-font-size'
+  'ctrl-+': 'window:increase-font-size'
+  'ctrl--': 'window:decrease-font-size'
+  'ctrl-_': 'window:decrease-font-size'
+  'ctrl-0': 'window:reset-font-size'
+
+  'ctrl-k up': 'pane:split-up' # Atom Specific
+  'ctrl-k down': 'pane:split-down' # Atom Specific
+  'ctrl-k left': 'pane:split-left' # Atom Specific
+  'ctrl-k right': 'pane:split-right' # Atom Specific
+  'ctrl-k ctrl-w': 'pane:close' # Atom Specific
+  'ctrl-k alt-ctrl-w': 'pane:close-other-items' # Atom Specific
+  'ctrl-k ctrl-p': 'window:focus-previous-pane'
+  'ctrl-k ctrl-n': 'window:focus-next-pane'
+  'ctrl-k ctrl-up':    'window:focus-pane-above'
+  'ctrl-k ctrl-down':  'window:focus-pane-below'
+  'ctrl-k ctrl-left':  'window:focus-pane-on-left'
+  'ctrl-k ctrl-right': 'window:focus-pane-on-right'
+
+'.workspace .editor':
+  # Windows specific
+  'ctrl-delete': 'editor:backspace-to-beginning-of-word'
+
+  # Sublime Parity
+  'ctrl-a': 'core:select-all'
+  'ctrl-alt-p': 'editor:log-cursor-scope'
+  'ctrl-k ctrl-u': 'editor:upper-case'
+  'ctrl-k ctrl-l': 'editor:lower-case'
+
+'.workspace .editor:not(.mini)':
+  # Atom specific
+  'alt-ctrl-z': 'editor:checkout-head-revision'
+  'ctrl-<': 'editor:scroll-to-cursor'
+  'alt-ctrl-f': 'editor:fold-selection'
+
+  # Sublime Parity
+  'ctrl-enter': 'editor:newline-below'
+  'ctrl-shift-enter': 'editor:newline-above'
+  'ctrl-]': 'editor:indent-selected-rows'
+  'ctrl-[': 'editor:outdent-selected-rows'
+  'ctrl-up': 'editor:move-line-up'
+  'ctrl-down': 'editor:move-line-down'
+  'ctrl-/': 'editor:toggle-line-comments'
+  'ctrl-j': 'editor:join-lines'
+  'ctrl-D': 'editor:duplicate-lines'
+  'alt-shift-up': 'editor:add-selection-above'
+  'alt-shift-down': 'editor:add-selection-below'
+
+  'ctrl-alt-[': 'editor:fold-current-row'
+  'ctrl-alt-]': 'editor:unfold-current-row'
+  'ctrl-alt-{': 'editor:fold-all' # Atom Specific
+  'ctrl-alt-}': 'editor:unfold-all' # Atom Specific
+  'ctrl-k ctrl-0': 'editor:unfold-all'
+  'ctrl-k ctrl-1': 'editor:fold-at-indent-level-1'
+  'ctrl-k ctrl-2': 'editor:fold-at-indent-level-2'
+  'ctrl-k ctrl-3': 'editor:fold-at-indent-level-3'
+  'ctrl-k ctrl-4': 'editor:fold-at-indent-level-4'
+  'ctrl-k ctrl-5': 'editor:fold-at-indent-level-5'
+  'ctrl-k ctrl-6': 'editor:fold-at-indent-level-6'
+  'ctrl-k ctrl-7': 'editor:fold-at-indent-level-7'
+  'ctrl-k ctrl-8': 'editor:fold-at-indent-level-8'
+  'ctrl-k ctrl-9': 'editor:fold-at-indent-level-9'
+
+# allow standard input fields to work correctly
+'body .native-key-bindings':
+  'ctrl-z': 'native!'
+  'ctrl-Z': 'native!'
+  'ctrl-x': 'native!'
+  'ctrl-c': 'native!'
+  'ctrl-v': 'native!'

keymaps/win32.cson

@@ -14,7 +14,7 @@
   # Sublime Parity
   'ctrl-N': 'application:new-window'
   'ctrl-W': 'window:close'
-  'ctrl-o': 'application:open'
+  'ctrl-o': 'application:open-file'
   'ctrl-T': 'pane:reopen-closed-item'
   'ctrl-n': 'application:new-file'
   'ctrl-s': 'core:save'

menus/darwin.cson

@@ -4,10 +4,10 @@
     submenu: [
       { label: 'About Atom', command: 'application:about' }
       { label: 'View License', command: 'application:open-license' }
-      { label: "VERSION", enabled: false }
-      { label: "Restart and Install Update", command: 'application:install-update', visible: false}
-      { label: "Check for Update", command: 'application:check-for-update', visible: false}
-      { label: "Downloading Update", command: 'application:check-for-update', enabled: false, visible: false}
+      { label: 'VERSION', enabled: false }
+      { label: 'Restart and Install Update', command: 'application:install-update', visible: false}
+      { label: 'Check for Update', command: 'application:check-for-update', visible: false}
+      { label: 'Downloading Update', enabled: false, visible: false}
       { type: 'separator' }
       { label: 'Preferences...', command: 'application:show-settings' }
       { label: 'Open Your Config', command: 'application:open-your-config' }
@@ -38,7 +38,7 @@
       { label: 'Save All', command: 'window:save-all' }
       { type: 'separator' }
       { label: 'Close Buffer', command: 'core:close' }
-      { label: 'Close All Buffers', command: 'pane:close' }
+      { label: 'Close Pane', command: 'pane:close' }
       { label: 'Close Window', command: 'window:close' }
     ]
   }

menus/linux.cson

@@ -0,0 +1,155 @@
+'menu': [
+  {
+    label: '&File'
+    submenu: [
+      { label: 'New &Window', command: 'application:new-window' }
+      { label: '&New File', command: 'application:new-file' }
+      { label: '&Open File...', command: 'application:open-file' }
+      { label: 'Open Folder...', command: 'application:open-folder' }
+      { label: 'Reopen Last &Item', command: 'pane:reopen-closed-item' }
+      { type: 'separator' }
+      { label: '&Preferences...', command: 'application:show-settings' }
+      { type: 'separator' }
+      { label: '&Save', command: 'core:save' }
+      { label: 'Save &As...', command: 'core:save-as' }
+      { label: 'Save A&ll', command: 'window:save-all' }
+      { type: 'separator' }
+      { label: '&Close Buffer', command: 'core:close' }
+      { label: 'Close All &Buffers', command: 'pane:close' }
+      { label: 'Clos&e Window', command: 'window:close' }
+      { type: 'separator' }
+      { label: 'Quit', command: 'application:quit' }
+    ]
+  }
+
+  {
+    label: '&Edit'
+    submenu: [
+      { label: '&Undo', command: 'core:undo' }
+      { label: '&Redo', command: 'core:redo' }
+      { type: 'separator' }
+      { label: '&Cut', command: 'core:cut' }
+      { label: 'C&opy', command: 'core:copy' }
+      { label: 'Copy Pat&h', command: 'editor:copy-path' }
+      { label: '&Paste', command: 'core:paste' }
+      { label: 'Select &All', command: 'core:select-all' }
+      { type: 'separator' }
+      { label: '&Toggle Comments', command: 'editor:toggle-line-comments' }
+      {
+        label: 'Lines',
+        submenu: [
+          { label: '&Indent', command: 'editor:indent-selected-rows' }
+          { label: '&Outdent', command: 'editor:outdent-selected-rows' }
+          { label: '&Auto Indent', command: 'editor:auto-indent' }
+          { type: 'separator' }
+          { label: 'Move Line &Up', command: 'editor:move-line-up' }
+          { label: 'Move Line &Down', command: 'editor:move-line-down' }
+          { label: 'Du&plicate Lines', command: 'editor:duplicate-lines' }
+          { label: 'D&elete Line', command: 'editor:delete-line' }
+          { label: '&Join Lines', command: 'editor:join-lines' }
+        ]
+      }
+      {
+        label: 'Text',
+        submenu: [
+          { label: '&Upper Case', command: 'editor:upper-case' }
+          { label: '&Lower Case', command: 'editor:lower-case' }
+          { type: 'separator' }
+          { label: 'Delete to End of &Word', command: 'editor:delete-to-end-of-word' }
+          { label: '&Delete Line', command: 'editor:delete-line' }
+          { type: 'separator' }
+          { label: '&Transpose', command: 'editor:transpose' }
+        ]
+      }
+      {
+        label: 'Folding',
+        submenu: [
+          { label: '&Fold', command: 'editor:fold-current-row' }
+          { label: '&Unfold', command: 'editor:unfold-current-row' }
+          { label: 'Unfold &All', command: 'editor:unfold-all' }
+          { type: 'separator' }
+          { label: 'Fol&d All', command: 'editor:fold-all' }
+          { label: 'Fold Level 1', command: 'editor:fold-at-indent-level-1' }
+          { label: 'Fold Level 2', command: 'editor:fold-at-indent-level-2' }
+          { label: 'Fold Level 3', command: 'editor:fold-at-indent-level-3' }
+          { label: 'Fold Level 4', command: 'editor:fold-at-indent-level-4' }
+          { label: 'Fold Level 5', command: 'editor:fold-at-indent-level-5' }
+          { label: 'Fold Level 6', command: 'editor:fold-at-indent-level-6' }
+          { label: 'Fold Level 7', command: 'editor:fold-at-indent-level-7' }
+          { label: 'Fold Level 8', command: 'editor:fold-at-indent-level-8' }
+          { label: 'Fold Level 9', command: 'editor:fold-at-indent-level-9' }
+        ]
+      }
+    ]
+  }
+
+  {
+    label: '&View'
+    submenu: [
+      { label: '&Reload', command: 'window:reload' }
+      { label: 'Toggle &Full Screen', command: 'window:toggle-full-screen' }
+      {
+        label: 'Developer'
+        submenu: [
+          { label: 'Open In &Dev Mode...', command: 'application:open-dev' }
+          { label: 'Run &Atom Specs', command: 'application:run-all-specs' }
+          { label: 'Run Package &Specs', command: 'window:run-package-specs' }
+          { label: 'Toggle Developer &Tools', command: 'window:toggle-dev-tools' }
+        ]
+      }
+      { type: 'separator' }
+      { label: 'Toggle Soft &Wrap', command: 'editor:toggle-soft-wrap' }
+    ]
+  }
+
+  {
+    label: '&Selection'
+    submenu: [
+      { label: 'Add Selection &Above', command: 'editor:add-selection-above' }
+      { label: 'Add Selection &Below', command: 'editor:add-selection-below' }
+      { label: 'S&plit into Lines', command: 'editor:split-selections-into-lines'}
+      { type: 'separator' }
+      { label: 'Select to &Top', command: 'core:select-to-top' }
+      { label: 'Select to Botto&m', command: 'core:select-to-bottom' }
+      { type: 'separator' }
+      { label: 'Select &Line', command: 'editor:select-line' }
+      { label: 'Select &Word', command: 'editor:select-word' }
+      { label: 'Select to Beginning of W&ord', command: 'editor:select-to-beginning-of-word' }
+      { label: 'Select to Beginning of L&ine', command: 'editor:select-to-beginning-of-line' }
+      { label: 'Select to First &Character of Line', command: 'editor:select-to-first-character-of-line' }
+      { label: 'Select to End of Wor&d', command: 'editor:select-to-end-of-word' }
+      { label: 'Select to End of Lin&e', command: 'editor:select-to-end-of-line' }
+    ]
+  }
+
+  {
+    label: 'F&ind'
+    submenu: []
+  }
+
+  {
+    label: '&Packages'
+    submenu: []
+  }
+
+  {
+    label: '&Window'
+    submenu: [
+      { label: 'Mi&nimize', command: 'application:minimize' }
+      { label: 'Ma&ximize', command: 'application:zoom' }
+      { type: 'separator' }
+      { label: 'Bring &All to Front', command: 'application:bring-all-windows-to-front' }
+    ]
+  }
+
+  {
+    label: '&Help'
+    submenu: [
+      { label: 'View &License', command: 'application:open-license' }
+      { label: "VERSION", enabled: false }
+      { type: 'separator' }
+      { label: '&Documentation', command: 'application:open-documentation' }
+      { type: 'separator' }
+    ]
+  }
+]

menus/win32.cson

@@ -4,7 +4,8 @@
     submenu: [
       { label: 'New &Window', command: 'application:new-window' }
       { label: '&New File', command: 'application:new-file' }
-      { label: '&Open...', command: 'application:open' }
+      { label: '&Open File...', command: 'application:open-file' }
+      { label: 'Open Folder...', command: 'application:open-folder' }
       { label: 'Reopen Last &Item', command: 'pane:reopen-closed-item' }
       { type: 'separator' }
       { label: '&Preferences...', command: 'application:show-settings' }

package.json

@@ -1,7 +1,8 @@
 {
   "name": "atom",
   "productName": "Atom",
-  "version": "0.70.0",
+  "version": "0.92.0",
+  "description": "A hackable text editor for the 21st Century.",
   "main": "./src/browser/main.js",
   "repository": {
     "type": "git",
@@ -11,120 +12,124 @@
     "url": "https://github.com/atom/atom/issues"
   },
   "license": "All Rights Reserved",
-  "atomShellVersion": "0.10.6",
+  "atomShellVersion": "0.11.10",
   "dependencies": {
     "async": "0.2.6",
+    "atom-keymap": "^0.18.0",
     "bootstrap": "git://github.com/atom/bootstrap.git#6af81906189f1747fd6c93479e3d998ebe041372",
     "clear-cut": "0.4.0",
     "coffee-script": "1.7.0",
     "coffeestack": "0.7.0",
     "delegato": "1.x",
-    "emissary": "1.x",
-    "first-mate": ">=1.4 <2.0",
-    "fs-plus": "2.x",
+    "emissary": "^1.2.1",
+    "first-mate": "^1.5.2",
+    "fs-plus": "^2.2.2",
     "fstream": "0.1.24",
     "fuzzaldrin": "~1.1",
-    "git-utils": "1.x",
+    "git-utils": "^1.2.2",
+    "grim": "0.9.0",
     "guid": "0.0.10",
-    "jasmine-tagged": ">=1.1.1 <2.0",
-    "mkdirp": "0.3.5",
-    "keytar": "0.15.1",
+    "jasmine-tagged": "^1.1.1",
     "less-cache": "0.12.0",
     "mixto": "1.x",
+    "mkdirp": "0.3.5",
     "nslog": "0.5.0",
-    "oniguruma": "1.x",
+    "oniguruma": "^1.0.6",
     "optimist": "0.4.0",
-    "pathwatcher": "0.16.0",
-    "pegjs": "0.8.0",
+    "pathwatcher": "^1.2.1",
     "property-accessors": "1.x",
-    "q": "1.0.x",
+    "q": "^1.0.1",
     "random-words": "0.0.1",
+    "react": "^0.10.0",
+    "reactionary": "^0.8.0",
     "runas": "0.5.x",
-    "scandal": "0.15.0",
+    "scandal": "0.15.2",
+    "scoped-property-store": "^0.8.0",
     "scrollbar-style": "^0.1.0",
-    "season": ">=1.0.2 <2.0",
+    "season": "^1.0.2",
     "semver": "1.1.4",
     "serializable": "1.x",
     "space-pen": "3.1.1",
     "temp": "0.5.0",
-    "text-buffer": "^1.4.2",
+    "text-buffer": "^2.1.0",
     "theorist": "1.x",
-    "underscore-plus": ">=1.0.2 <2.0",
+    "underscore-plus": "^1.2.1",
     "vm-compatibility-layer": "0.1.0"
   },
   "packageDependencies": {
     "atom-dark-syntax": "0.15.0",
-    "atom-dark-ui": "0.23.0",
-    "atom-light-syntax": "0.15.0",
-    "atom-light-ui": "0.22.0",
-    "base16-tomorrow-dark-theme": "0.13.0",
-    "solarized-dark-syntax": "0.12.0",
+    "atom-dark-ui": "0.26.0",
+    "atom-light-syntax": "0.17.0",
+    "atom-light-ui": "0.24.0",
+    "base16-tomorrow-dark-theme": "0.15.0",
+    "solarized-dark-syntax": "0.14.0",
     "solarized-light-syntax": "0.7.0",
-    "archive-view": "0.26.0",
+    "archive-view": "0.30.0",
     "autocomplete": "0.27.0",
-    "autoflow": "0.15.0",
-    "autosave": "0.12.0",
-    "background-tips": "0.9.0",
-    "bookmarks": "0.21.0",
-    "bracket-matcher": "0.25.0",
-    "command-palette": "0.19.0",
-    "dev-live-reload": "0.28.0",
+    "autoflow": "0.16.0",
+    "autosave": "0.13.0",
+    "background-tips": "0.13.0",
+    "bookmarks": "0.22.0",
+    "bracket-matcher": "0.33.0",
+    "command-palette": "0.21.0",
+    "deprecation-cop": "0.5.0",
+    "dev-live-reload": "0.30.0",
     "exception-reporting": "0.17.0",
-    "feedback": "0.28.0",
-    "find-and-replace": "0.89.1",
-    "fuzzy-finder": "0.39.0",
-    "git-diff": "0.25.0",
-    "go-to-line": "0.18.0",
-    "grammar-selector": "0.23.0",
-    "image-view": "0.29.0",
-    "keybinding-resolver": "0.11.0",
-    "link": "0.20.0",
-    "markdown-preview": "0.47.0",
-    "metrics": "0.30.0",
-    "open-on-github": "0.23.0",
+    "feedback": "0.30.0",
+    "find-and-replace": "0.99.0",
+    "fuzzy-finder": "0.50.0",
+    "git-diff": "0.28.0",
+    "go-to-line": "0.19.0",
+    "grammar-selector": "0.24.0",
+    "image-view": "0.33.0",
+    "keybinding-resolver": "0.17.0",
+    "link": "0.22.0",
+    "markdown-preview": "0.65.0",
+    "metrics": "0.32.0",
+    "open-on-github": "0.28.0",
     "package-generator": "0.30.0",
-    "release-notes": "0.26.0",
-    "settings-view": "0.90.0",
-    "snippets": "0.35.0",
-    "spell-check": "0.28.0",
-    "status-bar": "0.35.0",
-    "styleguide": "0.26.0",
-    "symbols-view": "0.41.0",
-    "tabs": "0.28.0",
-    "timecop": "0.17.0",
-    "tree-view": "0.76.0",
+    "release-notes": "0.27.0",
+    "settings-view": "0.111.0",
+    "snippets": "0.41.0",
+    "spell-check": "0.34.0",
+    "status-bar": "0.40.0",
+    "styleguide": "0.29.0",
+    "symbols-view": "0.49.0",
+    "tabs": "0.37.0",
+    "timecop": "0.18.0",
+    "tree-view": "0.90.0",
     "update-package-dependencies": "0.6.0",
-    "welcome": "0.11.0",
-    "whitespace": "0.18.0",
-    "wrap-guide": "0.17.0",
-    "language-c": "0.13.0",
-    "language-coffee-script": "0.15.0",
-    "language-css": "0.13.0",
-    "language-gfm": "0.19.0",
+    "welcome": "0.12.0",
+    "whitespace": "0.22.0",
+    "wrap-guide": "0.18.0",
+    "language-c": "0.14.0",
+    "language-coffee-script": "0.22.0",
+    "language-css": "0.16.0",
+    "language-gfm": "0.31.0",
     "language-git": "0.9.0",
-    "language-go": "0.7.0",
-    "language-html": "0.11.0",
-    "language-hyperlink": "0.8.0",
+    "language-go": "0.9.0",
+    "language-html": "0.19.0",
+    "language-hyperlink": "0.9.0",
     "language-java": "0.9.0",
-    "language-javascript": "0.17.0",
+    "language-javascript": "0.24.0",
     "language-json": "0.8.0",
-    "language-less": "0.6.0",
-    "language-make": "0.9.0",
-    "language-objective-c": "0.10.0",
+    "language-less": "0.8.0",
+    "language-make": "0.10.0",
+    "language-objective-c": "0.11.0",
     "language-perl": "0.8.0",
-    "language-php": "0.10.0",
+    "language-php": "0.14.0",
     "language-property-list": "0.7.0",
-    "language-python": "0.12.0",
-    "language-ruby": "0.15.0",
-    "language-ruby-on-rails": "0.10.0",
-    "language-sass": "0.8.0",
+    "language-python": "0.15.0",
+    "language-ruby": "0.23.0",
+    "language-ruby-on-rails": "0.12.0",
+    "language-sass": "0.10.0",
     "language-shellscript": "0.8.0",
     "language-source": "0.7.0",
-    "language-sql": "0.7.0",
+    "language-sql": "0.8.0",
     "language-text": "0.6.0",
-    "language-todo": "0.6.0",
-    "language-toml": "0.11.0",
-    "language-xml": "0.8.0",
+    "language-todo": "0.10.0",
+    "language-toml": "0.12.0",
+    "language-xml": "0.11.0",
     "language-yaml": "0.6.0"
   },
   "private": true,

resources/linux/Atom.desktop.in

@@ -0,0 +1,8 @@
+[Desktop Entry]
+Name=Atom
+Comment=<%= description %>
+Exec=/usr/share/atom/atom %U
+Icon=atom
+Type=Application
+StartupNotify=true
+Categories=GNOME;GTK;Utility;TextEditor;

resources/linux/debian/control.in

@@ -0,0 +1,8 @@
+Package: <%= name %>
+Version: <%= version %>
+Section: <%= section %>
+Priority: optional
+Architecture: <%= arch %>
+Installed-Size: `du -ks usr|cut -f 1`
+Maintainer: <%= maintainer %>
+Description: <%= description %>

resources/mac/atom-Info.plist

@@ -32,6 +32,8 @@
 	<string>MainMenu</string>
 	<key>NSPrincipalClass</key>
 	<string>AtomApplication</string>
+	<key>NSSupportsAutomaticGraphicsSwitching</key>
+	<true/>
 	<key>SUPublicDSAKeyFile</key>
 	<string>speakeasy.pem</string>
 	<key>SUScheduledCheckInterval</key>

script/bootstrap

@@ -1,4 +1,11 @@
-#!/usr/bin/env node --harmony_collections
+#!/usr/bin/env node
+
+var nodeMinorVersion = process.versions.node.split('.')[1]
+if (nodeMinorVersion !== '10') {
+  console.warn("You must run script/bootstrap and script/build with node v0.10.x");
+  process.exit(1);
+}
+
 var safeExec = require('./utils/child-process-wrapper.js').safeExec;
 var fs = require('fs');
 var path = require('path');
@@ -27,15 +34,19 @@ if (!fs.existsSync(path.join(apmInstallPath, 'node_modules')))
 
 var apmPath = 'apm/node_modules/atom-package-manager/bin/apm'
 var apmFlags = process.env.JANKY_SHA1 || process.argv.indexOf('--no-color') !== -1 ? '--no-color' : '';
+
+var npmPath = path.resolve(__dirname, '..', 'build', 'node_modules', '.bin', 'npm');
+var npmFlags = ' --userconfig=' + path.resolve('.npmrc') + ' ';
+
 var packagesToDedupe = ['fs-plus', 'humanize-plus', 'oniguruma', 'roaster', 'season'];
-var npmCommand = 'npm --userconfig=' + path.resolve('.npmrc') + ' ';
 var echoNewLine = process.platform == 'win32' ? 'echo.' : 'echo';
+
 var commands = [
   'git submodule --quiet sync',
   'git submodule --quiet update --recursive --init',
-  {command: npmCommand + 'install --quiet', options: {cwd: path.resolve(__dirname, '..', 'build'), ignoreStdout: true}},
-  {command: npmCommand + 'install --quiet', options: {cwd: apmVendorPath, ignoreStdout: true}},
-  {command: npmCommand + 'install --quiet ' + apmVendorPath, options: {cwd: apmInstallPath, ignoreStdout: true}},
+  {command: 'npm' + npmFlags + 'install --quiet', options: {cwd: path.resolve(__dirname, '..', 'build'), ignoreStdout: true}},
+  {command: npmPath + npmFlags + 'install --quiet', options: {cwd: apmVendorPath, ignoreStdout: true}},
+  {command: npmPath + npmFlags + 'install --quiet ' + apmVendorPath, options: {cwd: apmInstallPath, ignoreStdout: true}},
   echoNewLine,
   apmPath + ' clean ' + apmFlags,
   apmPath + ' install --quiet ' + apmFlags,

script/build

@@ -1,4 +1,4 @@
-#!/usr/bin/env node --harmony_collections
+#!/usr/bin/env node
 var cp = require('./utils/child-process-wrapper.js');
 var path = require('path');
 

script/cibuild

@@ -1,4 +1,4 @@
-#!/usr/bin/env node --harmony_collections
+#!/usr/bin/env node
 var cp = require('./utils/child-process-wrapper.js');
 var fs = require('fs');
 var path = require('path');

script/clean

@@ -1,4 +1,4 @@
-#!/usr/bin/env node --harmony_collections
+#!/usr/bin/env node
 var cp = require('./utils/child-process-wrapper.js');
 var path = require('path');
 var os = require('os');
@@ -23,9 +23,9 @@ var commands = [
   [home, '.atom', '.node-gyp'],
   [home, '.atom', 'storage'],
   [home, '.atom', '.npm'],
+  [home, '.atom', 'compile-cache'],
   [tmpdir, 'atom-build'],
   [tmpdir, 'atom-cached-atom-shells'],
-  [tmpdir, 'atom-compile-cache'],
 ];
 var run = function() {
   var next = commands.shift();

script/grunt

@@ -1,4 +1,4 @@
-#!/usr/bin/env node --harmony_collections
+#!/usr/bin/env node
 var cp = require('./utils/child-process-wrapper.js');
 var path = require('path');
 

script/mkdeb

@@ -0,0 +1,31 @@
+#!/bin/bash
+# mkdeb version control-file-path deb-file-path
+
+SCRIPT=`readlink -f "$0"`
+ROOT=`readlink -f $(dirname $SCRIPT)/..`
+cd $ROOT
+
+VERSION="$1"
+CONTROL_FILE="$2"
+DESKTOP_FILE="$3"
+ICON_FILE="$4"
+DEB_PATH="$5"
+
+TARGET_ROOT="`mktemp -d`"
+TARGET="$TARGET_ROOT/atom-$VERSION-amd64"
+
+mkdir -p "$TARGET/usr"
+env INSTALL_PREFIX="$TARGET/usr" script/grunt install
+
+mkdir -p "$TARGET/DEBIAN"
+mv "$CONTROL_FILE" "$TARGET/DEBIAN/control"
+
+mkdir -p "$TARGET/usr/share/applications"
+mv "$DESKTOP_FILE" "$TARGET/usr/share/applications"
+
+mkdir -p "$TARGET/usr/share/pixmaps"
+cp "$ICON_FILE" "$TARGET/usr/share/pixmaps"
+
+dpkg-deb -b "$TARGET"
+mv "$TARGET_ROOT/atom-$VERSION-amd64.deb" "$DEB_PATH"
+rm -rf $TARGET_ROOT

script/test

@@ -1,4 +1,4 @@
-#!/usr/bin/env node --harmony_collections
+#!/usr/bin/env node
 var safeExec = require('./utils/child-process-wrapper.js').safeExec;
 var path = require('path');
 

spec/atom-spec.coffee

@@ -126,6 +126,16 @@ describe "the `atom` global", ->
               expect(eventHandler.callCount).toBe 2
               expect(mainModule.activate.callCount).toBe 1
 
+            it "activates the package immediately when the events are empty", ->
+              mainModule = require './fixtures/packages/package-with-empty-activation-events/index'
+              spyOn(mainModule, 'activate').andCallThrough()
+
+              waitsForPromise ->
+                atom.packages.activatePackage('package-with-empty-activation-events')
+
+              runs ->
+                expect(mainModule.activate.callCount).toBe 1
+
         describe "when the package has no main module", ->
           it "does not throw an exception", ->
             spyOn(console, "error")
@@ -160,28 +170,28 @@ describe "the `atom` global", ->
               element2 = $$ -> @div class: 'test-2'
               element3 = $$ -> @div class: 'test-3'
 
-              expect(atom.keymap.keyBindingsForKeystrokeMatchingElement('ctrl-z', element1)).toHaveLength 0
-              expect(atom.keymap.keyBindingsForKeystrokeMatchingElement('ctrl-z', element2)).toHaveLength 0
-              expect(atom.keymap.keyBindingsForKeystrokeMatchingElement('ctrl-z', element3)).toHaveLength 0
+              expect(atom.keymaps.keyBindingsForKeystrokeMatchingElement('ctrl-z', element1)).toHaveLength 0
+              expect(atom.keymaps.keyBindingsForKeystrokeMatchingElement('ctrl-z', element2)).toHaveLength 0
+              expect(atom.keymaps.keyBindingsForKeystrokeMatchingElement('ctrl-z', element3)).toHaveLength 0
 
               atom.packages.activatePackage("package-with-keymaps")
 
-              expect(atom.keymap.keyBindingsForKeystrokeMatchingElement('ctrl-z', element1)[0].command).toBe "test-1"
-              expect(atom.keymap.keyBindingsForKeystrokeMatchingElement('ctrl-z', element2)[0].command).toBe "test-2"
-              expect(atom.keymap.keyBindingsForKeystrokeMatchingElement('ctrl-z', element3)).toHaveLength 0
+              expect(atom.keymaps.keyBindingsForKeystrokeMatchingElement('ctrl-z', element1)[0].command).toBe "test-1"
+              expect(atom.keymaps.keyBindingsForKeystrokeMatchingElement('ctrl-z', element2)[0].command).toBe "test-2"
+              expect(atom.keymaps.keyBindingsForKeystrokeMatchingElement('ctrl-z', element3)).toHaveLength 0
 
           describe "when the metadata contains a 'keymaps' manifest", ->
             it "loads only the keymaps specified by the manifest, in the specified order", ->
               element1 = $$ -> @div class: 'test-1'
               element3 = $$ -> @div class: 'test-3'
 
-              expect(atom.keymap.keyBindingsForKeystrokeMatchingElement('ctrl-z', element1)).toHaveLength 0
+              expect(atom.keymaps.keyBindingsForKeystrokeMatchingElement('ctrl-z', element1)).toHaveLength 0
 
               atom.packages.activatePackage("package-with-keymaps-manifest")
 
-              expect(atom.keymap.keyBindingsForKeystrokeMatchingElement('ctrl-z', element1)[0].command).toBe 'keymap-1'
-              expect(atom.keymap.keyBindingsForKeystrokeMatchingElement('ctrl-n', element1)[0].command).toBe 'keymap-2'
-              expect(atom.keymap.keyBindingsForKeystrokeMatchingElement('ctrl-y', element3)).toHaveLength 0
+              expect(atom.keymaps.keyBindingsForKeystrokeMatchingElement('ctrl-z', element1)[0].command).toBe 'keymap-1'
+              expect(atom.keymaps.keyBindingsForKeystrokeMatchingElement('ctrl-n', element1)[0].command).toBe 'keymap-2'
+              expect(atom.keymaps.keyBindingsForKeystrokeMatchingElement('ctrl-y', element3)).toHaveLength 0
 
         describe "menu loading", ->
           beforeEach ->
@@ -367,8 +377,8 @@ describe "the `atom` global", ->
 
           runs ->
             atom.packages.deactivatePackage('package-with-keymaps')
-            expect(atom.keymap.keyBindingsForKeystrokeMatchingElement('ctrl-z', $$ -> @div class: 'test-1')).toHaveLength 0
-            expect(atom.keymap.keyBindingsForKeystrokeMatchingElement('ctrl-z', $$ -> @div class: 'test-2')).toHaveLength 0
+            expect(atom.keymaps.keyBindingsForKeystrokeMatchingElement('ctrl-z', $$ -> @div class: 'test-1')).toHaveLength 0
+            expect(atom.keymaps.keyBindingsForKeystrokeMatchingElement('ctrl-z', $$ -> @div class: 'test-2')).toHaveLength 0
 
         it "removes the package's stylesheets", ->
           waitsForPromise ->

spec/config-spec.coffee

@@ -36,15 +36,53 @@ describe "Config", ->
 
     describe "when the value equals the default value", ->
       it "does not store the value", ->
-        atom.config.setDefaults("foo", same: 1, changes: 1)
+        atom.config.setDefaults "foo",
+          same: 1
+          changes: 1
+          sameArray: [1, 2, 3]
+          sameObject: {a: 1, b: 2}
+          null: null
+          undefined: undefined
         expect(atom.config.settings.foo).toBeUndefined()
+
         atom.config.set('foo.same', 1)
         atom.config.set('foo.changes', 2)
+        atom.config.set('foo.sameArray', [1, 2, 3])
+        atom.config.set('foo.null', undefined)
+        atom.config.set('foo.undefined', null)
+        atom.config.set('foo.sameObject', {b: 2, a: 1})
         expect(atom.config.settings.foo).toEqual {changes: 2}
 
         atom.config.set('foo.changes', 1)
         expect(atom.config.settings.foo).toEqual {}
 
+  describe ".getDefault(keyPath)", ->
+    it "returns a clone of the default value", ->
+      atom.config.setDefaults("foo", same: 1, changes: 1)
+      expect(atom.config.getDefault('foo.same')).toBe 1
+      expect(atom.config.getDefault('foo.changes')).toBe 1
+
+      atom.config.set('foo.same', 2)
+      atom.config.set('foo.changes', 3)
+      expect(atom.config.getDefault('foo.same')).toBe 1
+      expect(atom.config.getDefault('foo.changes')).toBe 1
+
+      initialDefaultValue = [1, 2, 3]
+      atom.config.setDefaults("foo", bar: initialDefaultValue)
+      expect(atom.config.getDefault('foo.bar')).toEqual initialDefaultValue
+      expect(atom.config.getDefault('foo.bar')).not.toBe initialDefaultValue
+
+  describe ".isDefault(keyPath)", ->
+    it "returns true when the value of the key path is its default value", ->
+      atom.config.setDefaults("foo", same: 1, changes: 1)
+      expect(atom.config.isDefault('foo.same')).toBe true
+      expect(atom.config.isDefault('foo.changes')).toBe true
+
+      atom.config.set('foo.same', 2)
+      atom.config.set('foo.changes', 3)
+      expect(atom.config.isDefault('foo.same')).toBe false
+      expect(atom.config.isDefault('foo.changes')).toBe false
+
   describe ".toggle(keyPath)", ->
     it "negates the boolean value of the current key path value", ->
       atom.config.set('foo.a', 1)
@@ -170,6 +208,13 @@ describe "Config", ->
       expect(atom.config.get("foo.quux.x")).toBe 0
       expect(atom.config.get("foo.quux.y")).toBe 1
 
+    it "emits an updated event", ->
+      updatedCallback = jasmine.createSpy('updated')
+      atom.config.observe('foo.bar.baz.a', callNow: false, updatedCallback)
+      expect(updatedCallback.callCount).toBe 0
+      atom.config.setDefaults("foo.bar.baz", a: 2)
+      expect(updatedCallback.callCount).toBe 1
+
   describe ".observe(keyPath)", ->
     [observeHandler, observeSubscription] = []
 

spec/display-buffer-spec.coffee

@@ -18,7 +18,7 @@ describe "DisplayBuffer", ->
     displayBuffer.destroy()
     buffer.release()
 
-  describe ".copy()", ->
+  describe "::copy()", ->
     it "creates a new DisplayBuffer with the same initial state", ->
       marker1 = displayBuffer.markBufferRange([[1, 2], [3, 4]], id: 1)
       marker2 = displayBuffer.markBufferRange([[2, 3], [4, 5]], isReversed: true, id: 2)
@@ -82,7 +82,7 @@ describe "DisplayBuffer", ->
 
         describe "when there is no whitespace before the boundary", ->
           it "wraps the line exactly at the boundary since there's no more graceful place to wrap it", ->
-            buffer.change([[0, 0], [1, 0]], 'abcdefghijklmnopqrstuvwxyz\n')
+            buffer.setTextInRange([[0, 0], [1, 0]], 'abcdefghijklmnopqrstuvwxyz\n')
             displayBuffer.setEditorWidthInChars(10)
             expect(displayBuffer.lineForRow(0).text).toBe 'abcdefghij'
             expect(displayBuffer.lineForRow(1).text).toBe 'klmnopqrst'
@@ -142,7 +142,7 @@ describe "DisplayBuffer", ->
 
       describe "when buffer lines are removed", ->
         it "removes lines and emits a change event", ->
-          buffer.change([[3, 21], [7, 5]], ';')
+          buffer.setTextInRange([[3, 21], [7, 5]], ';')
           expect(displayBuffer.lineForRow(3).text).toBe '    var pivot = items;'
           expect(displayBuffer.lineForRow(4).text).toBe '    return '
           expect(displayBuffer.lineForRow(5).text).toBe 'sort(left).concat(pivot).concat(sort(right));'
@@ -330,7 +330,7 @@ describe "DisplayBuffer", ->
 
       describe "when the old range surrounds a fold", ->
         beforeEach ->
-          buffer.change([[1, 0], [5, 1]], 'party!')
+          buffer.setTextInRange([[1, 0], [5, 1]], 'party!')
 
         it "removes the fold and replaces the selection with the new text", ->
           expect(displayBuffer.lineForRow(0).text).toBe "0"
@@ -352,7 +352,7 @@ describe "DisplayBuffer", ->
           displayBuffer.createFold(2, 9)
           changeHandler.reset()
 
-          buffer.change([[1, 0], [10, 0]], 'goodbye')
+          buffer.setTextInRange([[1, 0], [10, 0]], 'goodbye')
 
           expect(displayBuffer.lineForRow(0).text).toBe "0"
           expect(displayBuffer.lineForRow(1).text).toBe "goodbye10"
@@ -371,7 +371,7 @@ describe "DisplayBuffer", ->
       describe "when the old range precedes lines with a fold", ->
         describe "when the new range precedes lines with a fold", ->
           it "updates the buffer and re-positions subsequent folds", ->
-            buffer.change([[0, 0], [1, 1]], 'abc')
+            buffer.setTextInRange([[0, 0], [1, 1]], 'abc')
 
             expect(displayBuffer.lineForRow(0).text).toBe "abc"
             expect(displayBuffer.lineForRow(1).fold).toBe fold1
@@ -394,7 +394,7 @@ describe "DisplayBuffer", ->
 
       describe "when the old range straddles the beginning of a fold", ->
         it "destroys the fold", ->
-          buffer.change([[1, 1], [3, 0]], "a\nb\nc\nd\n")
+          buffer.setTextInRange([[1, 1], [3, 0]], "a\nb\nc\nd\n")
           expect(displayBuffer.lineForRow(1).text).toBe '1a'
           expect(displayBuffer.lineForRow(2).text).toBe 'b'
           expect(displayBuffer.lineForRow(2).fold).toBeUndefined()
@@ -402,7 +402,7 @@ describe "DisplayBuffer", ->
 
       describe "when the old range follows a fold", ->
         it "re-positions the screen ranges for the change event based on the preceding fold", ->
-          buffer.change([[10, 0], [11, 0]], 'abc')
+          buffer.setTextInRange([[10, 0], [11, 0]], 'abc')
 
           expect(displayBuffer.lineForRow(1).text).toBe "1"
           expect(displayBuffer.lineForRow(2).fold).toBe fold1
@@ -430,7 +430,7 @@ describe "DisplayBuffer", ->
 
         describe "when the end of the new range exceeds the end of the fold", ->
           it "expands the fold to contain all the inserted lines", ->
-            buffer.change([[3, 0], [4, 0]], 'a\nb\nc\nd\n')
+            buffer.setTextInRange([[3, 0], [4, 0]], 'a\nb\nc\nd\n')
             expect(fold1.getStartRow()).toBe 2
             expect(fold1.getEndRow()).toBe 7
 
@@ -447,7 +447,7 @@ describe "DisplayBuffer", ->
         describe "when the end of the new range precedes the end of the fold", ->
           it "destroys the fold", ->
             fold2.destroy()
-            buffer.change([[3, 0], [6, 0]], 'a\n')
+            buffer.setTextInRange([[3, 0], [6, 0]], 'a\n')
             expect(displayBuffer.lineForRow(2).text).toBe '2'
             expect(displayBuffer.lineForRow(2).fold).toBeUndefined()
             expect(displayBuffer.lineForRow(3).text).toBe 'a'
@@ -536,7 +536,7 @@ describe "DisplayBuffer", ->
         expect(displayBuffer.outermostFoldsInBufferRowRange(3, 18)).toEqual [fold1, fold3, fold5]
         expect(displayBuffer.outermostFoldsInBufferRowRange(5, 16)).toEqual [fold3]
 
-  describe ".clipScreenPosition(screenPosition, wrapBeyondNewlines: false, wrapAtSoftNewlines: false, skipAtomicTokens: false)", ->
+  describe "::clipScreenPosition(screenPosition, wrapBeyondNewlines: false, wrapAtSoftNewlines: false, skipAtomicTokens: false)", ->
     beforeEach ->
       displayBuffer.setSoftWrap(true)
       displayBuffer.setEditorWidthInChars(50)
@@ -598,7 +598,7 @@ describe "DisplayBuffer", ->
         expect(displayBuffer.clipScreenPosition([0, 1], skipAtomicTokens: true)).toEqual [0, tabLength]
         expect(displayBuffer.clipScreenPosition([0, tabLength], skipAtomicTokens: true)).toEqual [0, tabLength]
 
-  describe ".screenPositionForBufferPosition(bufferPosition, options)", ->
+  describe "::screenPositionForBufferPosition(bufferPosition, options)", ->
     it "clips the specified buffer position", ->
       expect(displayBuffer.screenPositionForBufferPosition([0, 2])).toEqual [0, 2]
       expect(displayBuffer.screenPositionForBufferPosition([0, 100000])).toEqual [0, 29]
@@ -618,13 +618,13 @@ describe "DisplayBuffer", ->
       expect(displayBuffer.screenPositionForBufferPosition([0, 10], wrapAtSoftNewlines: true)).toEqual [1, 0]
       expect(displayBuffer.bufferPositionForScreenPosition([1, 0])).toEqual [0, 10]
 
-  describe ".getMaxLineLength()", ->
+  describe "::getMaxLineLength()", ->
     it "returns the length of the longest screen line", ->
       expect(displayBuffer.getMaxLineLength()).toBe 65
       buffer.delete([[6, 0], [6, 65]])
       expect(displayBuffer.getMaxLineLength()).toBe 62
 
-  describe ".destroy()", ->
+  describe "::destroy()", ->
     it "unsubscribes all display buffer markers from their underlying buffer marker (regression)", ->
       marker = displayBuffer.markBufferPosition([12, 2])
       displayBuffer.destroy()
@@ -777,17 +777,17 @@ describe "DisplayBuffer", ->
           isValid: true
         }
 
-      xit "triggers the 'changed' event whenever the marker is invalidated or revalidated", ->
+      it "triggers the 'changed' event whenever the marker is invalidated or revalidated", ->
         buffer.deleteRow(8)
         expect(markerChangedHandler).toHaveBeenCalled()
         expect(markerChangedHandler.argsForCall[0][0]).toEqual {
           oldHeadScreenPosition: [5, 10]
           oldHeadBufferPosition: [8, 10]
-          newHeadScreenPosition: [5, 10]
+          newHeadScreenPosition: [5, 0]
           newHeadBufferPosition: [8, 0]
           oldTailScreenPosition: [5, 4]
           oldTailBufferPosition: [8, 4]
-          newTailScreenPosition: [5, 4]
+          newTailScreenPosition: [5, 0]
           newTailBufferPosition: [8, 0]
           textChanged: true
           isValid: false
@@ -798,12 +798,12 @@ describe "DisplayBuffer", ->
 
         expect(markerChangedHandler).toHaveBeenCalled()
         expect(markerChangedHandler.argsForCall[0][0]).toEqual {
-          oldHeadScreenPosition: [5, 10]
-          oldHeadBufferPosition: [8, 10]
+          oldHeadScreenPosition: [5, 0]
+          oldHeadBufferPosition: [8, 0]
           newHeadScreenPosition: [5, 10]
           newHeadBufferPosition: [8, 10]
-          oldTailScreenPosition: [5, 4]
-          oldTailBufferPosition: [8, 4]
+          oldTailScreenPosition: [5, 0]
+          oldTailBufferPosition: [8, 0]
           newTailScreenPosition: [5, 4]
           newTailBufferPosition: [8, 4]
           textChanged: true
@@ -814,7 +814,7 @@ describe "DisplayBuffer", ->
         displayBuffer.createFold(10, 11)
         expect(markerChangedHandler).not.toHaveBeenCalled()
 
-      xit "updates markers before emitting buffer change events, but does not notify their observers until the change event", ->
+      it "updates markers before emitting buffer change events, but does not notify their observers until the change event", ->
         marker2 = displayBuffer.markBufferRange([[8, 1], [8, 1]])
         marker2.on 'changed', marker2ChangedHandler = jasmine.createSpy("marker2ChangedHandler")
         displayBuffer.on 'changed', changeHandler = jasmine.createSpy("changeHandler").andCallFake -> onDisplayBufferChange()
@@ -831,7 +831,7 @@ describe "DisplayBuffer", ->
           expect(marker.getTailScreenPosition()).toEqual [5, 7]
           expect(marker2.isValid()).toBeFalsy()
 
-        buffer.change([[8, 0], [8, 2]], ".....")
+        buffer.setTextInRange([[8, 0], [8, 2]], ".....")
         expect(changeHandler).toHaveBeenCalled()
         expect(markerChangedHandler).toHaveBeenCalled()
         expect(marker2ChangedHandler).toHaveBeenCalled()
@@ -902,7 +902,7 @@ describe "DisplayBuffer", ->
         expect(changeHandler).toHaveBeenCalled()
         expect(markerChangedHandler).toHaveBeenCalled()
 
-    describe ".findMarkers(attributes)", ->
+    describe "::findMarkers(attributes)", ->
       it "allows the startBufferRow and endBufferRow to be specified", ->
         marker1 = displayBuffer.markBufferRange([[0, 0], [3, 0]], class: 'a')
         marker2 = displayBuffer.markBufferRange([[0, 0], [5, 0]], class: 'a')
@@ -932,7 +932,7 @@ describe "DisplayBuffer", ->
         buffer.getMarker(marker2.id).destroy()
         expect(destroyedHandler).toHaveBeenCalled()
 
-    describe "DisplayBufferMarker.copy(attributes)", ->
+    describe "DisplayBufferMarker::copy(attributes)", ->
       it "creates a copy of the marker with the given attributes merged in", ->
         initialMarkerCount = displayBuffer.getMarkerCount()
         marker1 = displayBuffer.markScreenRange([[5, 4], [5, 10]], a: 1, b: 2)
@@ -943,3 +943,69 @@ describe "DisplayBuffer", ->
         expect(displayBuffer.getMarkerCount()).toBe initialMarkerCount + 2
         expect(marker1.getAttributes()).toEqual a: 1, b: 2
         expect(marker2.getAttributes()).toEqual a: 1, b: 3
+
+    describe "DisplayBufferMarker::getPixelRange()", ->
+      it "returns the start and end positions of the marker based on the line height and character widths assigned to the DisplayBuffer", ->
+        marker = displayBuffer.markScreenRange([[5, 10], [6, 4]])
+
+        displayBuffer.setLineHeight(20)
+        displayBuffer.setDefaultCharWidth(10)
+        displayBuffer.setScopedCharWidths(["source.js", "keyword.control.js"], r: 11, e: 11, t: 11, u: 11, n: 11)
+
+        {start, end} = marker.getPixelRange()
+        expect(start.top).toBe 5 * 20
+        expect(start.left).toBe (4 * 10) + (6 * 11)
+
+  describe "::setScrollTop", ->
+    beforeEach ->
+      displayBuffer.manageScrollPosition = true
+      displayBuffer.setLineHeight(10)
+
+    it "disallows negative values", ->
+      displayBuffer.setHeight(displayBuffer.getScrollHeight() + 100)
+      expect(displayBuffer.setScrollTop(-10)).toBe 0
+      expect(displayBuffer.getScrollTop()).toBe 0
+
+    it "disallows values that would make ::getScrollBottom() exceed ::getScrollHeight()", ->
+      displayBuffer.setHeight(50)
+      maxScrollTop = displayBuffer.getScrollHeight() - displayBuffer.getHeight()
+
+      expect(displayBuffer.setScrollTop(maxScrollTop)).toBe maxScrollTop
+      expect(displayBuffer.getScrollTop()).toBe maxScrollTop
+
+      expect(displayBuffer.setScrollTop(maxScrollTop + 50)).toBe maxScrollTop
+      expect(displayBuffer.getScrollTop()).toBe maxScrollTop
+
+  describe "::setScrollLeft", ->
+    beforeEach ->
+      displayBuffer.manageScrollPosition = true
+      displayBuffer.setDefaultCharWidth(10)
+
+    it "disallows negative values", ->
+      displayBuffer.setWidth(displayBuffer.getScrollWidth() + 100)
+      expect(displayBuffer.setScrollLeft(-10)).toBe 0
+      expect(displayBuffer.getScrollLeft()).toBe 0
+
+    it "disallows values that would make ::getScrollRight() exceed ::getScrollWidth()", ->
+      displayBuffer.setWidth(50)
+      maxScrollLeft = displayBuffer.getScrollWidth() - displayBuffer.getWidth()
+
+      expect(displayBuffer.setScrollLeft(maxScrollLeft)).toBe maxScrollLeft
+      expect(displayBuffer.getScrollLeft()).toBe maxScrollLeft
+
+      expect(displayBuffer.setScrollLeft(maxScrollLeft + 50)).toBe maxScrollLeft
+      expect(displayBuffer.getScrollLeft()).toBe maxScrollLeft
+
+  describe "::scrollToScreenPosition(position)", ->
+    it "sets the scroll top and scroll left so the given screen position is in view", ->
+      displayBuffer.manageScrollPosition = true
+      displayBuffer.setLineHeight(10)
+      displayBuffer.setDefaultCharWidth(10)
+
+      displayBuffer.setHeight(50)
+      displayBuffer.setWidth(50)
+      maxScrollTop = displayBuffer.getScrollHeight() - displayBuffer.getHeight()
+
+      displayBuffer.scrollToScreenPosition([8, 20])
+      expect(displayBuffer.getScrollBottom()).toBe (9 + displayBuffer.getVerticalScrollMargin()) * 10
+      expect(displayBuffer.getScrollRight()).toBe (20 + displayBuffer.getHorizontalScrollMargin()) * 10

spec/editor-component-spec.coffee

@@ -0,0 +1,580 @@
+{extend, flatten, toArray} = require 'underscore-plus'
+ReactEditorView = require '../src/react-editor-view'
+nbsp = String.fromCharCode(160)
+
+describe "EditorComponent", ->
+  [editor, wrapperView, component, node, verticalScrollbarNode, horizontalScrollbarNode] = []
+  [lineHeightInPixels, charWidth, delayAnimationFrames, nextAnimationFrame] = []
+
+  beforeEach ->
+    waitsForPromise ->
+      atom.packages.activatePackage('language-javascript')
+
+    runs ->
+      spyOn(window, "setInterval").andCallFake window.fakeSetInterval
+      spyOn(window, "clearInterval").andCallFake window.fakeClearInterval
+
+      delayAnimationFrames = false
+      nextAnimationFrame = null
+      spyOn(window, 'requestAnimationFrame').andCallFake (fn) ->
+        if delayAnimationFrames
+          nextAnimationFrame = fn
+        else
+          fn()
+
+      editor = atom.project.openSync('sample.js')
+      wrapperView = new ReactEditorView(editor)
+      wrapperView.attachToDom()
+      {component} = wrapperView
+      component.setLineHeight(1.3)
+      component.setFontSize(20)
+
+      lineHeightInPixels = editor.getLineHeight()
+      charWidth = editor.getDefaultCharWidth()
+      node = component.getDOMNode()
+      verticalScrollbarNode = node.querySelector('.vertical-scrollbar')
+      horizontalScrollbarNode = node.querySelector('.horizontal-scrollbar')
+
+  describe "line rendering", ->
+    it "renders only the currently-visible lines", ->
+      node.style.height = 4.5 * lineHeightInPixels + 'px'
+      component.measureHeightAndWidth()
+
+      lines = node.querySelectorAll('.line')
+      expect(lines.length).toBe 6
+      expect(lines[0].textContent).toBe editor.lineForScreenRow(0).text
+      expect(lines[5].textContent).toBe editor.lineForScreenRow(5).text
+
+      verticalScrollbarNode.scrollTop = 2.5 * lineHeightInPixels
+      verticalScrollbarNode.dispatchEvent(new UIEvent('scroll'))
+
+      expect(node.querySelector('.scroll-view-content').style['-webkit-transform']).toBe "translate3d(0px, #{-2.5 * lineHeightInPixels}px, 0)"
+
+      lineNodes = node.querySelectorAll('.line')
+      expect(lineNodes.length).toBe 6
+      expect(lineNodes[0].offsetTop).toBe 2 * lineHeightInPixels
+      expect(lineNodes[0].textContent).toBe editor.lineForScreenRow(2).text
+      expect(lineNodes[5].textContent).toBe editor.lineForScreenRow(7).text
+
+    it "updates absolute positions of subsequent lines when lines are inserted or removed", ->
+      editor.getBuffer().deleteRows(0, 1)
+      lineNodes = node.querySelectorAll('.line')
+      expect(lineNodes[0].offsetTop).toBe 0
+      expect(lineNodes[1].offsetTop).toBe 1 * lineHeightInPixels
+      expect(lineNodes[2].offsetTop).toBe 2 * lineHeightInPixels
+
+      editor.getBuffer().insert([0, 0], '\n\n')
+      lineNodes = node.querySelectorAll('.line')
+      expect(lineNodes[0].offsetTop).toBe 0
+      expect(lineNodes[1].offsetTop).toBe 1 * lineHeightInPixels
+      expect(lineNodes[2].offsetTop).toBe 2 * lineHeightInPixels
+      expect(lineNodes[3].offsetTop).toBe 3 * lineHeightInPixels
+      expect(lineNodes[4].offsetTop).toBe 4 * lineHeightInPixels
+
+    describe "when indent guides are enabled", ->
+      beforeEach ->
+        component.setShowIndentGuide(true)
+
+      it "adds an 'indent-guide' class to spans comprising the leading whitespace", ->
+        lines = node.querySelectorAll('.line')
+        line1LeafNodes = getLeafNodes(lines[1])
+        expect(line1LeafNodes[0].textContent).toBe '  '
+        expect(line1LeafNodes[0].classList.contains('indent-guide')).toBe true
+        expect(line1LeafNodes[1].classList.contains('indent-guide')).toBe false
+
+        line2LeafNodes = getLeafNodes(lines[2])
+        expect(line2LeafNodes[0].textContent).toBe '  '
+        expect(line2LeafNodes[0].classList.contains('indent-guide')).toBe true
+        expect(line2LeafNodes[1].textContent).toBe '  '
+        expect(line2LeafNodes[1].classList.contains('indent-guide')).toBe true
+        expect(line2LeafNodes[2].classList.contains('indent-guide')).toBe false
+
+      it "renders leading whitespace spans with the 'indent-guide' class for empty lines", ->
+        editor.getBuffer().insert([1, Infinity], '\n')
+
+        lines = node.querySelectorAll('.line')
+        line2LeafNodes = getLeafNodes(lines[2])
+
+        expect(line2LeafNodes.length).toBe 3
+        expect(line2LeafNodes[0].textContent).toBe '  '
+        expect(line2LeafNodes[0].classList.contains('indent-guide')).toBe true
+        expect(line2LeafNodes[1].textContent).toBe '  '
+        expect(line2LeafNodes[1].classList.contains('indent-guide')).toBe true
+        expect(line2LeafNodes[2].textContent).toBe '  '
+        expect(line2LeafNodes[2].classList.contains('indent-guide')).toBe true
+
+      it "renders indent guides correctly on lines containing only whitespace", ->
+        editor.getBuffer().insert([1, Infinity], '\n      ')
+        lines = node.querySelectorAll('.line')
+        line2LeafNodes = getLeafNodes(lines[2])
+        expect(line2LeafNodes.length).toBe 3
+        expect(line2LeafNodes[0].textContent).toBe '  '
+        expect(line2LeafNodes[0].classList.contains('indent-guide')).toBe true
+        expect(line2LeafNodes[1].textContent).toBe '  '
+        expect(line2LeafNodes[1].classList.contains('indent-guide')).toBe true
+        expect(line2LeafNodes[2].textContent).toBe '  '
+        expect(line2LeafNodes[2].classList.contains('indent-guide')).toBe true
+
+      it "does not render indent guides in trailing whitespace for lines containing non whitespace characters", ->
+        editor.getBuffer().setText ("  hi  ")
+        lines = node.querySelectorAll('.line')
+        line0LeafNodes = getLeafNodes(lines[0])
+        expect(line0LeafNodes[0].textContent).toBe '  '
+        expect(line0LeafNodes[0].classList.contains('indent-guide')).toBe true
+        expect(line0LeafNodes[1].textContent).toBe '  '
+        expect(line0LeafNodes[1].classList.contains('indent-guide')).toBe false
+
+      getLeafNodes = (node) ->
+        if node.children.length > 0
+          flatten(toArray(node.children).map(getLeafNodes))
+        else
+          [node]
+
+  describe "gutter rendering", ->
+    it "renders the currently-visible line numbers", ->
+      node.style.height = 4.5 * lineHeightInPixels + 'px'
+      component.measureHeightAndWidth()
+
+      lines = node.querySelectorAll('.line-number')
+      expect(lines.length).toBe 6
+      expect(lines[0].textContent).toBe "#{nbsp}1"
+      expect(lines[5].textContent).toBe "#{nbsp}6"
+
+      verticalScrollbarNode.scrollTop = 2.5 * lineHeightInPixels
+      verticalScrollbarNode.dispatchEvent(new UIEvent('scroll'))
+
+      expect(node.querySelector('.line-numbers').style['-webkit-transform']).toBe "translate3d(0, #{-2.5 * lineHeightInPixels}px, 0)"
+
+      lineNumberNodes = node.querySelectorAll('.line-number')
+      expect(lineNumberNodes.length).toBe 6
+      expect(lineNumberNodes[0].offsetTop).toBe 2 * lineHeightInPixels
+      expect(lineNumberNodes[5].offsetTop).toBe 7 * lineHeightInPixels
+      expect(lineNumberNodes[0].textContent).toBe "#{nbsp}3"
+      expect(lineNumberNodes[5].textContent).toBe "#{nbsp}8"
+
+    it "updates absolute positions of subsequent line numbers when lines are inserted or removed", ->
+      editor.getBuffer().insert([0, 0], '\n\n')
+
+      lineNumberNodes = node.querySelectorAll('.line-number')
+      expect(lineNumberNodes[0].offsetTop).toBe 0
+      expect(lineNumberNodes[1].offsetTop).toBe 1 * lineHeightInPixels
+      expect(lineNumberNodes[2].offsetTop).toBe 2 * lineHeightInPixels
+      expect(lineNumberNodes[3].offsetTop).toBe 3 * lineHeightInPixels
+      expect(lineNumberNodes[4].offsetTop).toBe 4 * lineHeightInPixels
+
+      editor.getBuffer().insert([0, 0], '\n\n')
+      lineNumberNodes = node.querySelectorAll('.line-number')
+      expect(lineNumberNodes[0].offsetTop).toBe 0
+      expect(lineNumberNodes[1].offsetTop).toBe 1 * lineHeightInPixels
+      expect(lineNumberNodes[2].offsetTop).toBe 2 * lineHeightInPixels
+      expect(lineNumberNodes[3].offsetTop).toBe 3 * lineHeightInPixels
+      expect(lineNumberNodes[4].offsetTop).toBe 4 * lineHeightInPixels
+
+    it "renders • characters for soft-wrapped lines", ->
+      editor.setSoftWrap(true)
+      node.style.height = 4.5 * lineHeightInPixels + 'px'
+      node.style.width = 30 * charWidth + 'px'
+      component.measureHeightAndWidth()
+
+      lines = node.querySelectorAll('.line-number')
+      expect(lines.length).toBe 6
+      expect(lines[0].textContent).toBe "#{nbsp}1"
+      expect(lines[1].textContent).toBe "#{nbsp}•"
+      expect(lines[2].textContent).toBe "#{nbsp}2"
+      expect(lines[3].textContent).toBe "#{nbsp}•"
+      expect(lines[4].textContent).toBe "#{nbsp}3"
+      expect(lines[5].textContent).toBe "#{nbsp}•"
+
+  describe "cursor rendering", ->
+    it "renders the currently visible cursors", ->
+      cursor1 = editor.getCursor()
+      cursor1.setScreenPosition([0, 5])
+
+      node.style.height = 4.5 * lineHeightInPixels + 'px'
+      component.measureHeightAndWidth()
+
+      cursorNodes = node.querySelectorAll('.cursor')
+      expect(cursorNodes.length).toBe 1
+      expect(cursorNodes[0].offsetHeight).toBe lineHeightInPixels
+      expect(cursorNodes[0].offsetWidth).toBe charWidth
+      expect(cursorNodes[0].offsetTop).toBe 0
+      expect(cursorNodes[0].offsetLeft).toBe 5 * charWidth
+
+      cursor2 = editor.addCursorAtScreenPosition([6, 11])
+      cursor3 = editor.addCursorAtScreenPosition([4, 10])
+
+      cursorNodes = node.querySelectorAll('.cursor')
+      expect(cursorNodes.length).toBe 2
+      expect(cursorNodes[0].offsetTop).toBe 0
+      expect(cursorNodes[0].offsetLeft).toBe 5 * charWidth
+      expect(cursorNodes[1].offsetTop).toBe 4 * lineHeightInPixels
+      expect(cursorNodes[1].offsetLeft).toBe 10 * charWidth
+
+      verticalScrollbarNode.scrollTop = 2.5 * lineHeightInPixels
+      verticalScrollbarNode.dispatchEvent(new UIEvent('scroll'))
+
+      cursorNodes = node.querySelectorAll('.cursor')
+      expect(cursorNodes.length).toBe 2
+      expect(cursorNodes[0].offsetTop).toBe 6 * lineHeightInPixels
+      expect(cursorNodes[0].offsetLeft).toBe 11 * charWidth
+      expect(cursorNodes[1].offsetTop).toBe 4 * lineHeightInPixels
+      expect(cursorNodes[1].offsetLeft).toBe 10 * charWidth
+
+      cursor3.destroy()
+      cursorNodes = node.querySelectorAll('.cursor')
+      expect(cursorNodes.length).toBe 1
+      expect(cursorNodes[0].offsetTop).toBe 6 * lineHeightInPixels
+      expect(cursorNodes[0].offsetLeft).toBe 11 * charWidth
+
+    it "accounts for character widths when positioning cursors", ->
+      atom.config.set('editor.fontFamily', 'sans-serif')
+      editor.setCursorScreenPosition([0, 16])
+
+      cursor = node.querySelector('.cursor')
+      cursorRect = cursor.getBoundingClientRect()
+
+      cursorLocationTextNode = node.querySelector('.storage.type.function.js').firstChild.firstChild
+      range = document.createRange()
+      range.setStart(cursorLocationTextNode, 0)
+      range.setEnd(cursorLocationTextNode, 1)
+      rangeRect = range.getBoundingClientRect()
+
+      expect(cursorRect.left).toBe rangeRect.left
+      expect(cursorRect.width).toBe rangeRect.width
+
+    it "blinks cursors when they aren't moving", ->
+      editor.addCursorAtScreenPosition([1, 0])
+      [cursorNode1, cursorNode2] = node.querySelectorAll('.cursor')
+      expect(cursorNode1.classList.contains('blink-off')).toBe false
+      expect(cursorNode2.classList.contains('blink-off')).toBe false
+
+      advanceClock(component.props.cursorBlinkPeriod / 2)
+      expect(cursorNode1.classList.contains('blink-off')).toBe true
+      expect(cursorNode2.classList.contains('blink-off')).toBe true
+
+      advanceClock(component.props.cursorBlinkPeriod / 2)
+      expect(cursorNode1.classList.contains('blink-off')).toBe false
+      expect(cursorNode2.classList.contains('blink-off')).toBe false
+
+      advanceClock(component.props.cursorBlinkPeriod / 2)
+      expect(cursorNode1.classList.contains('blink-off')).toBe true
+      expect(cursorNode2.classList.contains('blink-off')).toBe true
+
+      # Stop blinking immediately when cursors move
+      advanceClock(component.props.cursorBlinkPeriod / 4)
+      expect(cursorNode1.classList.contains('blink-off')).toBe true
+      expect(cursorNode2.classList.contains('blink-off')).toBe true
+
+      # Stop blinking for one full period after moving the cursor
+      editor.moveCursorRight()
+      expect(cursorNode1.classList.contains('blink-off')).toBe false
+      expect(cursorNode2.classList.contains('blink-off')).toBe false
+
+      advanceClock(component.props.cursorBlinkResumeDelay / 2)
+      expect(cursorNode1.classList.contains('blink-off')).toBe false
+      expect(cursorNode2.classList.contains('blink-off')).toBe false
+
+      advanceClock(component.props.cursorBlinkResumeDelay / 2)
+      expect(cursorNode1.classList.contains('blink-off')).toBe true
+      expect(cursorNode2.classList.contains('blink-off')).toBe true
+
+      advanceClock(component.props.cursorBlinkPeriod / 2)
+      expect(cursorNode1.classList.contains('blink-off')).toBe false
+      expect(cursorNode2.classList.contains('blink-off')).toBe false
+
+    it "renders the hidden input field at the position of the last cursor if it is on screen", ->
+      inputNode = node.querySelector('.hidden-input')
+      node.style.height = 5 * lineHeightInPixels + 'px'
+      node.style.width = 10 * charWidth + 'px'
+      component.measureHeightAndWidth()
+
+      expect(editor.getCursorScreenPosition()).toEqual [0, 0]
+      editor.setScrollTop(3 * lineHeightInPixels)
+      editor.setScrollLeft(3 * charWidth)
+      expect(inputNode.offsetTop).toBe 0
+      expect(inputNode.offsetLeft).toBe 0
+
+      editor.setCursorBufferPosition([5, 5])
+      cursorRect = editor.getCursor().getPixelRect()
+      cursorTop = cursorRect.top
+      cursorLeft = cursorRect.left
+      expect(inputNode.offsetTop).toBe cursorTop - editor.getScrollTop()
+      expect(inputNode.offsetLeft).toBe cursorLeft - editor.getScrollLeft()
+
+    it "does not render cursors that are associated with non-empty selections", ->
+      editor.setSelectedScreenRange([[0, 4], [4, 6]])
+      editor.addCursorAtScreenPosition([6, 8])
+
+      cursorNodes = node.querySelectorAll('.cursor')
+      expect(cursorNodes.length).toBe 1
+      expect(cursorNodes[0].offsetTop).toBe 6 * lineHeightInPixels
+      expect(cursorNodes[0].offsetLeft).toBe 8 * charWidth
+
+  describe "selection rendering", ->
+    scrollViewClientLeft = null
+
+    beforeEach ->
+      scrollViewClientLeft = node.querySelector('.scroll-view').getBoundingClientRect().left
+
+    it "renders 1 region for 1-line selections", ->
+      # 1-line selection
+      editor.setSelectedScreenRange([[1, 6], [1, 10]])
+      regions = node.querySelectorAll('.selection .region')
+
+      expect(regions.length).toBe 1
+      regionRect = regions[0].getBoundingClientRect()
+      expect(regionRect.top).toBe 1 * lineHeightInPixels
+      expect(regionRect.height).toBe 1 * lineHeightInPixels
+      expect(regionRect.left).toBe scrollViewClientLeft + 6 * charWidth
+      expect(regionRect.width).toBe 4 * charWidth
+
+    it "renders 2 regions for 2-line selections", ->
+      editor.setSelectedScreenRange([[1, 6], [2, 10]])
+      regions = node.querySelectorAll('.selection .region')
+      expect(regions.length).toBe 2
+
+      region1Rect = regions[0].getBoundingClientRect()
+      expect(region1Rect.top).toBe 1 * lineHeightInPixels
+      expect(region1Rect.height).toBe 1 * lineHeightInPixels
+      expect(region1Rect.left).toBe scrollViewClientLeft + 6 * charWidth
+      expect(Math.ceil(region1Rect.right)).toBe node.clientWidth # TODO: Remove ceiling when react-wrapper is removed
+
+      region2Rect = regions[1].getBoundingClientRect()
+      expect(region2Rect.top).toBe 2 * lineHeightInPixels
+      expect(region2Rect.height).toBe 1 * lineHeightInPixels
+      expect(region2Rect.left).toBe scrollViewClientLeft + 0
+      expect(region2Rect.width).toBe 10 * charWidth
+
+    it "renders 3 regions for selections with more than 2 lines", ->
+      editor.setSelectedScreenRange([[1, 6], [5, 10]])
+      regions = node.querySelectorAll('.selection .region')
+      expect(regions.length).toBe 3
+
+      region1Rect = regions[0].getBoundingClientRect()
+      expect(region1Rect.top).toBe 1 * lineHeightInPixels
+      expect(region1Rect.height).toBe 1 * lineHeightInPixels
+      expect(region1Rect.left).toBe scrollViewClientLeft + 6 * charWidth
+      expect(Math.ceil(region1Rect.right)).toBe node.clientWidth # TODO: Remove ceiling when react-wrapper is removed
+
+      region2Rect = regions[1].getBoundingClientRect()
+      expect(region2Rect.top).toBe 2 * lineHeightInPixels
+      expect(region2Rect.height).toBe 3 * lineHeightInPixels
+      expect(region2Rect.left).toBe scrollViewClientLeft + 0
+      expect(Math.ceil(region2Rect.right)).toBe node.clientWidth # TODO: Remove ceiling when react-wrapper is removed
+
+      region3Rect = regions[2].getBoundingClientRect()
+      expect(region3Rect.top).toBe 5 * lineHeightInPixels
+      expect(region3Rect.height).toBe 1 * lineHeightInPixels
+      expect(region3Rect.left).toBe scrollViewClientLeft + 0
+      expect(region3Rect.width).toBe 10 * charWidth
+
+    it "does not render empty selections", ->
+      expect(editor.getSelection().isEmpty()).toBe true
+      expect(node.querySelectorAll('.selection').length).toBe 0
+
+  describe "mouse interactions", ->
+    linesNode = null
+
+    beforeEach ->
+      delayAnimationFrames = true
+      linesNode = node.querySelector('.lines')
+
+    describe "when a non-folded line is single-clicked", ->
+      describe "when no modifier keys are held down", ->
+        it "moves the cursor to the nearest screen position", ->
+          node.style.height = 4.5 * lineHeightInPixels + 'px'
+          node.style.width = 10 * charWidth + 'px'
+          component.measureHeightAndWidth()
+          editor.setScrollTop(3.5 * lineHeightInPixels)
+          editor.setScrollLeft(2 * charWidth)
+
+          linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([4, 8])))
+          expect(editor.getCursorScreenPosition()).toEqual [4, 8]
+
+      describe "when the shift key is held down", ->
+        it "selects to the nearest screen position", ->
+          editor.setCursorScreenPosition([3, 4])
+          linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([5, 6]), shiftKey: true))
+          expect(editor.getSelectedScreenRange()).toEqual [[3, 4], [5, 6]]
+
+      describe "when the command key is held down", ->
+        it "adds a cursor at the nearest screen position", ->
+          editor.setCursorScreenPosition([3, 4])
+          linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([5, 6]), metaKey: true))
+          expect(editor.getSelectedScreenRanges()).toEqual [[[3, 4], [3, 4]], [[5, 6], [5, 6]]]
+
+    describe "when a non-folded line is double-clicked", ->
+      it "selects the word containing the nearest screen position", ->
+        linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([5, 10]), detail: 2))
+        linesNode.dispatchEvent(buildMouseEvent('mouseup'))
+        expect(editor.getSelectedScreenRange()).toEqual [[5, 6], [5, 13]]
+
+        linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([6, 6]), detail: 1))
+        linesNode.dispatchEvent(buildMouseEvent('mouseup'))
+        expect(editor.getSelectedScreenRange()).toEqual [[6, 6], [6, 6]]
+
+        linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([8, 8]), detail: 1, shiftKey: true))
+        linesNode.dispatchEvent(buildMouseEvent('mouseup'))
+        expect(editor.getSelectedScreenRange()).toEqual [[6, 6], [8, 8]]
+
+    describe "when a non-folded line is triple-clicked", ->
+      it "selects the line containing the nearest screen position", ->
+        linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([5, 10]), detail: 3))
+        linesNode.dispatchEvent(buildMouseEvent('mouseup'))
+        expect(editor.getSelectedScreenRange()).toEqual [[5, 0], [6, 0]]
+
+        linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([6, 6]), detail: 1, shiftKey: true))
+        linesNode.dispatchEvent(buildMouseEvent('mouseup'))
+        expect(editor.getSelectedScreenRange()).toEqual [[5, 0], [7, 0]]
+
+        linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([7, 5]), detail: 1))
+        linesNode.dispatchEvent(buildMouseEvent('mouseup'))
+        linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([8, 8]), detail: 1, shiftKey: true))
+        linesNode.dispatchEvent(buildMouseEvent('mouseup'))
+        expect(editor.getSelectedScreenRange()).toEqual [[7, 5], [8, 8]]
+
+    describe "when the mouse is clicked and dragged", ->
+      it "selects to the nearest screen position until the mouse button is released", ->
+        linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([2, 4]), which: 1))
+        linesNode.dispatchEvent(buildMouseEvent('mousemove', clientCoordinatesForScreenPosition([6, 8]), which: 1))
+        nextAnimationFrame()
+        expect(editor.getSelectedScreenRange()).toEqual [[2, 4], [6, 8]]
+
+        linesNode.dispatchEvent(buildMouseEvent('mousemove', clientCoordinatesForScreenPosition([10, 0]), which: 1))
+        nextAnimationFrame()
+        expect(editor.getSelectedScreenRange()).toEqual [[2, 4], [10, 0]]
+
+        linesNode.dispatchEvent(buildMouseEvent('mouseup'))
+        linesNode.dispatchEvent(buildMouseEvent('mousemove', clientCoordinatesForScreenPosition([12, 0]), which: 1))
+        nextAnimationFrame()
+        expect(editor.getSelectedScreenRange()).toEqual [[2, 4], [10, 0]]
+
+      it "stops selecting if the mouse is dragged into the dev tools", ->
+        linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([2, 4]), which: 1))
+        linesNode.dispatchEvent(buildMouseEvent('mousemove', clientCoordinatesForScreenPosition([6, 8]), which: 1))
+        nextAnimationFrame()
+        expect(editor.getSelectedScreenRange()).toEqual [[2, 4], [6, 8]]
+
+        linesNode.dispatchEvent(buildMouseEvent('mousemove', clientCoordinatesForScreenPosition([10, 0]), which: 0))
+        nextAnimationFrame()
+        expect(editor.getSelectedScreenRange()).toEqual [[2, 4], [6, 8]]
+
+        linesNode.dispatchEvent(buildMouseEvent('mousemove', clientCoordinatesForScreenPosition([8, 0]), which: 1))
+        nextAnimationFrame()
+        expect(editor.getSelectedScreenRange()).toEqual [[2, 4], [6, 8]]
+
+    clientCoordinatesForScreenPosition = (screenPosition) ->
+      positionOffset = editor.pixelPositionForScreenPosition(screenPosition)
+      scrollViewClientRect = node.querySelector('.scroll-view').getBoundingClientRect()
+      clientX = scrollViewClientRect.left + positionOffset.left - editor.getScrollLeft()
+      clientY = scrollViewClientRect.top + positionOffset.top - editor.getScrollTop()
+      {clientX, clientY}
+
+    buildMouseEvent = (type, properties...) ->
+      properties = extend({bubbles: true, cancelable: true}, properties...)
+      event = new MouseEvent(type, properties)
+      Object.defineProperty(event, 'which', get: -> properties.which) if properties.which?
+      event
+
+  describe "focus handling", ->
+    inputNode = null
+
+    beforeEach ->
+      inputNode = node.querySelector('.hidden-input')
+
+    it "transfers focus to the hidden input", ->
+      expect(document.activeElement).toBe document.body
+      node.focus()
+      expect(document.activeElement).toBe inputNode
+
+    it "adds the 'is-focused' class to the editor when the hidden input is focused", ->
+      expect(document.activeElement).toBe document.body
+      inputNode.focus()
+      expect(node.classList.contains('is-focused')).toBe true
+      inputNode.blur()
+      expect(node.classList.contains('is-focused')).toBe false
+
+  describe "scrolling", ->
+    it "updates the vertical scrollbar when the scrollTop is changed in the model", ->
+      node.style.height = 4.5 * lineHeightInPixels + 'px'
+      component.measureHeightAndWidth()
+
+      expect(verticalScrollbarNode.scrollTop).toBe 0
+
+      editor.setScrollTop(10)
+      expect(verticalScrollbarNode.scrollTop).toBe 10
+
+    it "updates the horizontal scrollbar and scroll view content x transform based on the scrollLeft of the model", ->
+      node.style.width = 30 * charWidth + 'px'
+      component.measureHeightAndWidth()
+
+      scrollViewContentNode = node.querySelector('.scroll-view-content')
+      expect(scrollViewContentNode.style['-webkit-transform']).toBe "translate3d(0px, 0px, 0)"
+      expect(horizontalScrollbarNode.scrollLeft).toBe 0
+
+      editor.setScrollLeft(100)
+      expect(scrollViewContentNode.style['-webkit-transform']).toBe "translate3d(-100px, 0px, 0)"
+      expect(horizontalScrollbarNode.scrollLeft).toBe 100
+
+    it "updates the scrollLeft of the model when the scrollLeft of the horizontal scrollbar changes", ->
+      node.style.width = 30 * charWidth + 'px'
+      component.measureHeightAndWidth()
+
+      expect(editor.getScrollLeft()).toBe 0
+      horizontalScrollbarNode.scrollLeft = 100
+      horizontalScrollbarNode.dispatchEvent(new UIEvent('scroll'))
+
+      expect(editor.getScrollLeft()).toBe 100
+
+    describe "when a mousewheel event occurs on the editor", ->
+      it "updates the horizontal or vertical scrollbar depending on which delta is greater (x or y)", ->
+        node.style.height = 4.5 * lineHeightInPixels + 'px'
+        node.style.width = 20 * charWidth + 'px'
+        component.measureHeightAndWidth()
+
+        expect(verticalScrollbarNode.scrollTop).toBe 0
+        expect(horizontalScrollbarNode.scrollLeft).toBe 0
+
+        node.dispatchEvent(new WheelEvent('mousewheel', wheelDeltaX: -5, wheelDeltaY: -10))
+        expect(verticalScrollbarNode.scrollTop).toBe 10
+        expect(horizontalScrollbarNode.scrollLeft).toBe 0
+
+        node.dispatchEvent(new WheelEvent('mousewheel', wheelDeltaX: -15, wheelDeltaY: -5))
+        expect(verticalScrollbarNode.scrollTop).toBe 10
+        expect(horizontalScrollbarNode.scrollLeft).toBe 15
+
+  describe "input events", ->
+    inputNode = null
+
+    beforeEach ->
+      inputNode = node.querySelector('.hidden-input')
+
+    it "inserts the newest character in the input's value into the buffer", ->
+      inputNode.value = 'x'
+      inputNode.dispatchEvent(new Event('input'))
+      expect(editor.lineForBufferRow(0)).toBe 'xvar quicksort = function () {'
+
+      inputNode.value = 'xy'
+      inputNode.dispatchEvent(new Event('input'))
+      expect(editor.lineForBufferRow(0)).toBe 'xyvar quicksort = function () {'
+
+    it "replaces the last character if the length of the input's value doesn't increase, as occurs with the accented character menu", ->
+      inputNode.value = 'u'
+      inputNode.dispatchEvent(new Event('input'))
+      expect(editor.lineForBufferRow(0)).toBe 'uvar quicksort = function () {'
+
+      inputNode.value = 'ü'
+      inputNode.dispatchEvent(new Event('input'))
+      expect(editor.lineForBufferRow(0)).toBe 'üvar quicksort = function () {'
+
+  describe "commands", ->
+    describe "editor:consolidate-selections", ->
+      it "consolidates selections on the editor model, aborting the key binding if there is only one selection", ->
+        spyOn(editor, 'consolidateSelections').andCallThrough()
+
+        event = new CustomEvent('editor:consolidate-selections', bubbles: true, cancelable: true)
+        event.abortKeyBinding = jasmine.createSpy("event.abortKeyBinding")
+        node.dispatchEvent(event)
+
+        expect(editor.consolidateSelections).toHaveBeenCalled()
+        expect(event.abortKeyBinding).toHaveBeenCalled()

spec/editor-spec.coffee

@@ -111,6 +111,21 @@ describe "Editor", ->
         editor.moveCursorDown()
         expect(editor.getCursorBufferPosition()).toEqual [1, 1]
 
+      it "emits a single 'cursors-moved' event for all moved cursors", ->
+        editor.on 'cursors-moved', cursorsMovedHandler = jasmine.createSpy("cursorsMovedHandler")
+
+        editor.moveCursorDown()
+        expect(cursorsMovedHandler.callCount).toBe 1
+
+        cursorsMovedHandler.reset()
+        editor.addCursorAtScreenPosition([3, 0])
+        editor.moveCursorDown()
+        expect(cursorsMovedHandler.callCount).toBe 1
+
+        cursorsMovedHandler.reset()
+        editor.getCursor().moveDown()
+        expect(cursorsMovedHandler.callCount).toBe 1
+
     describe ".setCursorScreenPosition(screenPosition)", ->
       it "clears a goal column established by vertical movement", ->
         # set a goal column by moving down
@@ -645,6 +660,67 @@ describe "Editor", ->
           cursor2 = editor.addCursorAtBufferPosition([1,4])
           expect(cursor2.marker).toBe cursor1.marker
 
+    describe "autoscroll", ->
+      beforeEach ->
+        editor.manageScrollPosition = true
+        editor.setVerticalScrollMargin(2)
+        editor.setHorizontalScrollMargin(2)
+        editor.setLineHeight(10)
+        editor.setDefaultCharWidth(10)
+        editor.setHeight(5.5 * 10)
+        editor.setWidth(5.5 * 10)
+
+      it "scrolls down when the last cursor gets closer than ::verticalScrollMargin to the bottom of the editor", ->
+        expect(editor.getScrollTop()).toBe 0
+        expect(editor.getScrollBottom()).toBe 5.5 * 10
+
+        editor.setCursorScreenPosition([2, 0])
+        expect(editor.getScrollBottom()).toBe 5.5 * 10
+
+        editor.moveCursorDown()
+        expect(editor.getScrollBottom()).toBe 6 * 10
+
+        editor.moveCursorDown()
+        expect(editor.getScrollBottom()).toBe 7 * 10
+
+      it "scrolls up when the last cursor gets closer than ::verticalScrollMargin to the top of the editor", ->
+        editor.setCursorScreenPosition([11, 0])
+        editor.setScrollBottom(editor.getScrollHeight())
+
+        editor.moveCursorUp()
+        expect(editor.getScrollBottom()).toBe editor.getScrollHeight()
+
+        editor.moveCursorUp()
+        expect(editor.getScrollTop()).toBe 7 * 10
+
+        editor.moveCursorUp()
+        expect(editor.getScrollTop()).toBe 6 * 10
+
+      it "scrolls right when the last cursor gets closer than ::horizontalScrollMargin to the right of the editor", ->
+        expect(editor.getScrollLeft()).toBe 0
+        expect(editor.getScrollRight()).toBe 5.5 * 10
+
+        editor.setCursorScreenPosition([0, 2])
+        expect(editor.getScrollRight()).toBe 5.5 * 10
+
+        editor.moveCursorRight()
+        expect(editor.getScrollRight()).toBe 6 * 10
+
+        editor.moveCursorRight()
+        expect(editor.getScrollRight()).toBe 7 * 10
+
+      it "scrolls left when the last cursor gets closer than ::horizontalScrollMargin to the left of the editor", ->
+        editor.setScrollRight(editor.getScrollWidth())
+        editor.setCursorScreenPosition([6, 62])
+
+        expect(editor.getScrollRight()).toBe editor.getScrollWidth()
+
+        editor.moveCursorLeft()
+        expect(editor.getScrollLeft()).toBe 59 * 10
+
+        editor.moveCursorLeft()
+        expect(editor.getScrollLeft()).toBe 58 * 10
+
   describe "selection", ->
     selection = null
 
@@ -1000,7 +1076,7 @@ describe "Editor", ->
         expect(selection1).toBe selection
         expect(selection1.getBufferRange()).toEqual [[2, 2], [3, 3]]
 
-      describe "when the preserveFolds option is false (the default)", ->
+      describe "when the 'preserveFolds' option is false (the default)", ->
         it "removes folds that contain the selections", ->
           editor.setSelectedBufferRange([[0,0], [0,0]])
           editor.createFold(1, 4)
@@ -1014,7 +1090,7 @@ describe "Editor", ->
           expect(editor.lineForScreenRow(6).fold).toBeUndefined()
           expect(editor.lineForScreenRow(10).fold).toBeDefined()
 
-      describe "when the preserve folds option is true", ->
+      describe "when the 'preserveFolds' option is true", ->
         it "does not remove folds that contain the selections", ->
           editor.setSelectedBufferRange([[0,0], [0,0]])
           editor.createFold(1, 4)
@@ -1023,6 +1099,24 @@ describe "Editor", ->
           expect(editor.isFoldedAtBufferRow(1)).toBeTruthy()
           expect(editor.isFoldedAtBufferRow(6)).toBeTruthy()
 
+    describe ".setSelectedBufferRange(range)", ->
+      describe "when the 'autoscroll' option is true", ->
+        it "autoscrolls to the selection", ->
+          editor.manageScrollPosition = true
+          editor.setLineHeight(10)
+          editor.setDefaultCharWidth(10)
+          editor.setHeight(50)
+          editor.setWidth(50)
+          expect(editor.getScrollTop()).toBe 0
+
+          editor.setSelectedBufferRange([[5, 6], [6, 8]], autoscroll: true)
+          expect(editor.getScrollBottom()).toBe (7 + editor.getVerticalScrollMargin()) * 10
+          expect(editor.getScrollRight()).toBe 50
+
+          editor.setSelectedBufferRange([[6, 6], [6, 8]], autoscroll: true)
+          expect(editor.getScrollBottom()).toBe (7 + editor.getVerticalScrollMargin()) * 10
+          expect(editor.getScrollRight()).toBe (8 + editor.getHorizontalScrollMargin()) * 10
+
     describe ".selectMarker(marker)", ->
       describe "if the marker is valid", ->
         it "selects the marker's range and returns the selected range", ->
@@ -1424,6 +1518,35 @@ describe "Editor", ->
           editor.undo()
           expect(editor.getCursorBufferPosition()).toEqual [3,4]
 
+      it "indents the new line to the correct level when editor.autoIndent is true", ->
+        atom.config.set('editor.autoIndent', true)
+
+        editor.setText('  var test')
+        editor.setCursorBufferPosition([0,2])
+        editor.insertNewlineAbove()
+
+        expect(editor.getCursorBufferPosition()).toEqual [0,2]
+        expect(editor.lineForBufferRow(0)).toBe '  '
+        expect(editor.lineForBufferRow(1)).toBe '  var test'
+
+        editor.setText('\n  var test')
+        editor.setCursorBufferPosition([1,2])
+        editor.insertNewlineAbove()
+
+        expect(editor.getCursorBufferPosition()).toEqual [1,2]
+        expect(editor.lineForBufferRow(0)).toBe ''
+        expect(editor.lineForBufferRow(1)).toBe '  '
+        expect(editor.lineForBufferRow(2)).toBe '  var test'
+
+        editor.setText('function() {\n}')
+        editor.setCursorBufferPosition([1,1])
+        editor.insertNewlineAbove()
+
+        expect(editor.getCursorBufferPosition()).toEqual [1,2]
+        expect(editor.lineForBufferRow(0)).toBe 'function() {'
+        expect(editor.lineForBufferRow(1)).toBe '  '
+        expect(editor.lineForBufferRow(2)).toBe '}'
+
     describe ".backspace()", ->
       describe "when there is a single cursor", ->
         changeScreenRangeHandler = null
@@ -1596,6 +1719,11 @@ describe "Editor", ->
           expect(cursor1.getBufferPosition()).toEqual [1, 13]
           expect(cursor2.getBufferPosition()).toEqual [2, 34]
 
+          editor.setText('  var sort')
+          editor.setCursorBufferPosition([0, 2])
+          editor.backspaceToBeginningOfWord()
+          expect(buffer.lineForRow(0)).toBe 'var sort'
+
       describe "when text is selected", ->
         it "deletes only selected text", ->
           editor.setSelectedBufferRanges([[[1, 24], [1, 27]], [[2, 0], [2, 4]]])
@@ -2506,7 +2634,7 @@ describe "Editor", ->
 
           describe "when the line preceding the newline does't add a level of indentation", ->
             it "indents the new line to the same level a as the preceding line", ->
-              editor.setCursorBufferPosition([5, 13])
+              editor.setCursorBufferPosition([5, 14])
               editor.insertText('\n')
               expect(editor.indentationForBufferRow(6)).toBe editor.indentationForBufferRow(5)
 
@@ -2529,6 +2657,16 @@ describe "Editor", ->
             expect(editor.indentationForBufferRow(1)).toBe 1
             expect(editor.indentationForBufferRow(2)).toBe 1
 
+          describe "when the cursor is before whitespace", ->
+            it "retains the whitespace following the cursor on the new line", ->
+              editor.setText("  var sort = function() {}")
+              editor.setCursorScreenPosition([0, 23])
+              editor.insertNewline()
+
+              expect(buffer.lineForRow(0)).toBe '  var sort = function()'
+              expect(buffer.lineForRow(1)).toBe '   {}'
+              expect(editor.getCursorScreenPosition()).toEqual [1, 2]
+
         describe "when inserted text matches a decrease indent pattern", ->
           describe "when the preceding line matches an increase indent pattern", ->
             it "decreases the indentation to match that of the preceding line", ->
@@ -2552,7 +2690,7 @@ describe "Editor", ->
               expect(editor.lineForBufferRow(13)).toBe "}; # too many closing brackets!"
 
         describe "when inserted text does not match a decrease indent pattern", ->
-          it "does not the indentation", ->
+          it "does not decrease the indentation", ->
             editor.setCursorBufferPosition([12, 0])
             editor.insertText('  ')
             expect(editor.lineForBufferRow(12)).toBe '  };'
@@ -2786,10 +2924,18 @@ describe "Editor", ->
     describe "when the editor uses soft tabs but the row has hard tabs", ->
       it "only replaces whitespace charachters", ->
         editor.setSoftWrap(true)
-        editor.setText("	1\n	2")
+        editor.setText("\t1\n\t2")
         editor.setCursorBufferPosition([0, 0])
         editor.setIndentationForBufferRow(0, 2)
-        expect(editor.getText()).toBe("    1\n	2")
+        expect(editor.getText()).toBe("    1\n\t2")
+
+    describe "when the indentation level is a non-integer", ->
+      it "does not throw an exception", ->
+        editor.setSoftWrap(true)
+        editor.setText("\t1\n\t2")
+        editor.setCursorBufferPosition([0, 0])
+        editor.setIndentationForBufferRow(0, 2.1)
+        expect(editor.getText()).toBe("    1\n\t2")
 
   describe ".reloadGrammar()", ->
     beforeEach ->
@@ -2866,3 +3012,53 @@ describe "Editor", ->
             {tokens} = editor.lineForScreenRow(0)
             expect(tokens[2].value).toBe "SELECT"
             expect(tokens[2].scopes).toEqual ["source.js", "comment.line.double-slash.js", "keyword.other.DML.sql"]
+
+  describe ".normalizeTabsInBufferRange()", ->
+    it "normalizes tabs depending on the editor's soft tab/tab length settings", ->
+      editor.setTabLength(1)
+      editor.setSoftTabs(true)
+      editor.setText('\t\t\t')
+      editor.normalizeTabsInBufferRange([[0, 0], [0, 1]])
+      expect(editor.getText()).toBe ' \t\t'
+
+      editor.setTabLength(2)
+      editor.normalizeTabsInBufferRange([[0, 0], [Infinity, Infinity]])
+      expect(editor.getText()).toBe '     '
+
+      editor.setSoftTabs(false)
+      editor.normalizeTabsInBufferRange([[0, 0], [Infinity, Infinity]])
+      expect(editor.getText()).toBe '     '
+
+  describe ".scrollToCursorPosition()", ->
+    it "scrolls the last cursor into view", ->
+      editor.setCursorScreenPosition([8, 8])
+      editor.setLineHeight(10)
+      editor.setDefaultCharWidth(10)
+      editor.setHeight(50)
+      editor.setWidth(50)
+      expect(editor.getScrollTop()).toBe 0
+      expect(editor.getScrollLeft()).toBe 0
+
+      editor.scrollToCursorPosition()
+      expect(editor.getScrollBottom()).toBe (9 + editor.getVerticalScrollMargin()) * 10
+      expect(editor.getScrollRight()).toBe (9 + editor.getHorizontalScrollMargin()) * 10
+
+  describe ".pageUp/Down()", ->
+    it "scrolls one screen height up or down", ->
+      editor.manageScrollPosition = true
+
+      editor.setLineHeight(10)
+      editor.setHeight(50)
+      expect(editor.getScrollHeight()).toBe 130
+
+      editor.pageDown()
+      expect(editor.getScrollTop()).toBe 50
+
+      editor.pageDown()
+      expect(editor.getScrollTop()).toBe 80
+
+      editor.pageUp()
+      expect(editor.getScrollTop()).toBe 30
+
+      editor.pageUp()
+      expect(editor.getScrollTop()).toBe 0

spec/editor-view-spec.coffee

@@ -432,9 +432,9 @@ describe "EditorView", ->
           editorView.setFontFamily('sans-serif')
 
       it "positions the cursor to the clicked row and column", ->
-          {top, left} = editorView.pixelOffsetForScreenPosition([3, 30])
-          editorView.renderedLines.trigger mousedownEvent(pageX: left, pageY: top)
-          expect(editor.getCursorScreenPosition()).toEqual [3, 30]
+        {top, left} = editorView.pixelOffsetForScreenPosition([3, 30])
+        editorView.renderedLines.trigger mousedownEvent(pageX: left, pageY: top)
+        expect(editor.getCursorScreenPosition()).toEqual [3, 30]
 
     describe "double-click", ->
       it "selects the word under the cursor, and expands the selection wordwise in either direction on a subsequent shift-click", ->
@@ -464,6 +464,20 @@ describe "EditorView", ->
         editorView.renderedLines.trigger mousedownEvent(editorView: editorView, point: [3, 12], originalEvent: {detail: 1}, shiftKey: true)
         expect(editor.getSelectedBufferRange()).toEqual [[3, 10], [3, 12]]
 
+      it "stops selecting by word when another selection is made", ->
+        expect(editor.getCursorScreenPosition()).toEqual(row: 0, column: 0)
+        editorView.renderedLines.trigger mousedownEvent(editorView: editorView, point: [0, 8], originalEvent: {detail: 1})
+        editorView.renderedLines.trigger 'mouseup'
+        editorView.renderedLines.trigger mousedownEvent(editorView: editorView, point: [0, 8], originalEvent: {detail: 2})
+        editorView.renderedLines.trigger 'mouseup'
+        expect(editor.getSelectedText()).toBe "quicksort"
+
+        editorView.renderedLines.trigger mousedownEvent(editorView: editorView, point: [3, 10])
+        editorView.renderedLines.trigger mousemoveEvent(editorView: editorView, point: [3, 12], which: 1)
+        editorView.renderedLines.trigger 'mouseup'
+
+        expect(editor.getSelectedBufferRange()).toEqual [[3, 10], [3, 12]]
+
       describe "when clicking between a word and a non-word", ->
         it "selects the word", ->
           expect(editor.getCursorScreenPosition()).toEqual(row: 0, column: 0)
@@ -587,7 +601,7 @@ describe "EditorView", ->
         editorView.renderedLines.trigger mousedownEvent(editorView: editorView, point: [4, 10])
 
         # moving changes selection
-        $(document).trigger mousemoveEvent(editorView: editorView, point: [5, 27])
+        $(document).trigger mousemoveEvent(editorView: editorView, point: [5, 27], which: 1)
 
         range = editor.getSelection().getScreenRange()
         expect(range.start).toEqual({row: 4, column: 10})
@@ -617,12 +631,12 @@ describe "EditorView", ->
         originalScrollTop = editorView.scrollTop()
 
         # moving changes selection
-        $(document).trigger mousemoveEvent(editorView: editorView, pageX: 0, pageY: -1)
+        $(document).trigger mousemoveEvent(editorView: editorView, pageX: 0, pageY: -1, which: 1)
         expect(editorView.scrollTop()).toBe originalScrollTop - editorView.lineHeight
 
         # every mouse move selects more text
         for x in [0..10]
-          $(document).trigger mousemoveEvent(editorView: editorView, pageX: 0, pageY: -1)
+          $(document).trigger mousemoveEvent(editorView: editorView, pageX: 0, pageY: -1, which: 1)
 
         expect(editorView.scrollTop()).toBe 0
 
@@ -633,7 +647,7 @@ describe "EditorView", ->
         event = mousedownEvent(editorView: editorView, point: [4, 10])
         event.originalEvent.which = 2
         editorView.renderedLines.trigger(event)
-        $(document).trigger mousemoveEvent(editorView: editorView, point: [5, 27])
+        $(document).trigger mousemoveEvent(editorView: editorView, point: [5, 27], which: 1)
         $(document).trigger 'mouseup'
 
         range = editor.getSelection().getScreenRange()
@@ -654,6 +668,25 @@ describe "EditorView", ->
         expect(range.start).toEqual({row: 4, column: 10})
         expect(range.end).toEqual({row: 4, column: 10})
 
+      describe "when the editor is hidden", ->
+        it "stops scrolling the editor", ->
+          editorView.vScrollMargin = 0
+          editorView.attachToDom(heightInLines: 5)
+          editorView.scrollToBottom()
+
+          spyOn(window, 'setInterval').andCallFake ->
+
+          editorView.renderedLines.trigger mousedownEvent(editorView: editorView, point: [12, 0])
+          originalScrollTop = editorView.scrollTop()
+
+          $(document).trigger mousemoveEvent(editorView: editorView, pageX: 0, pageY: -1, which: 1)
+          expect(editorView.scrollTop()).toBe originalScrollTop - editorView.lineHeight
+
+          editorView.hide()
+
+          $(document).trigger mousemoveEvent(editorView: editorView, pageX: 100000, pageY: -1, which: 1)
+          expect(editorView.scrollTop()).toBe originalScrollTop - editorView.lineHeight
+
     describe "double-click and drag", ->
       it "selects the word under the cursor, then continues to select by word in either direction as the mouse is dragged", ->
         expect(editor.getCursorScreenPosition()).toEqual(row: 0, column: 0)
@@ -662,11 +695,11 @@ describe "EditorView", ->
         editorView.renderedLines.trigger mousedownEvent(editorView: editorView, point: [0, 8], originalEvent: {detail: 2})
         expect(editor.getSelectedText()).toBe "quicksort"
 
-        editorView.renderedLines.trigger mousemoveEvent(editorView: editorView, point: [1, 8])
+        editorView.renderedLines.trigger mousemoveEvent(editorView: editorView, point: [1, 8], which: 1)
         expect(editor.getSelectedBufferRange()).toEqual [[0, 4], [1, 10]]
         expect(editor.getCursorBufferPosition()).toEqual [1, 10]
 
-        editorView.renderedLines.trigger mousemoveEvent(editorView: editorView, point: [0, 1])
+        editorView.renderedLines.trigger mousemoveEvent(editorView: editorView, point: [0, 1], which: 1)
         expect(editor.getSelectedBufferRange()).toEqual [[0, 0], [0, 13]]
         expect(editor.getCursorBufferPosition()).toEqual [0, 0]
 
@@ -691,12 +724,12 @@ describe "EditorView", ->
         expect(editor.getSelectedBufferRange()).toEqual [[4, 0], [5, 0]]
 
         # moving changes selection linewise
-        editorView.renderedLines.trigger mousemoveEvent(editorView: editorView, point: [5, 27])
+        editorView.renderedLines.trigger mousemoveEvent(editorView: editorView, point: [5, 27], which: 1)
         expect(editor.getSelectedBufferRange()).toEqual [[4, 0], [6, 0]]
         expect(editor.getCursorBufferPosition()).toEqual [6, 0]
 
         # moving changes selection linewise
-        editorView.renderedLines.trigger mousemoveEvent(editorView: editorView, point: [2, 27])
+        editorView.renderedLines.trigger mousemoveEvent(editorView: editorView, point: [2, 27], which: 1)
         expect(editor.getSelectedBufferRange()).toEqual [[2, 0], [5, 0]]
         expect(editor.getCursorBufferPosition()).toEqual [2, 0]
 
@@ -706,11 +739,11 @@ describe "EditorView", ->
     describe "meta-click and drag", ->
       it "adds an additional selection", ->
         editorView.renderedLines.trigger mousedownEvent(editorView: editorView, point: [4, 10])
-        editorView.renderedLines.trigger mousemoveEvent(editorView: editorView, point: [5, 27])
+        editorView.renderedLines.trigger mousemoveEvent(editorView: editorView, point: [5, 27], which: 1)
         editorView.renderedLines.trigger 'mouseup'
 
         editorView.renderedLines.trigger mousedownEvent(editorView: editorView, point: [6, 10], metaKey: true)
-        editorView.renderedLines.trigger mousemoveEvent(editorView: editorView, point: [8, 27], metaKey: true)
+        editorView.renderedLines.trigger mousemoveEvent(editorView: editorView, point: [8, 27], metaKey: true, which: 1)
         editorView.renderedLines.trigger 'mouseup'
 
         selections = editor.getSelections()
@@ -1352,7 +1385,7 @@ describe "EditorView", ->
           expect(editorView.renderedLines.find(".line:first").text()).toBe buffer.lineForRow(6)
           expect(editorView.renderedLines.find(".line:last").text()).toBe buffer.lineForRow(12)
 
-          buffer.change([[1,0], [3,0]], "1\n2\n3\n")
+          buffer.setTextInRange([[1,0], [3,0]], "1\n2\n3\n")
           expect(editorView.renderedLines.find(".line").length).toBe 7
           expect(editorView.renderedLines.find(".line:first").text()).toBe buffer.lineForRow(6)
           expect(editorView.renderedLines.find(".line:last").text()).toBe buffer.lineForRow(12)
@@ -1365,21 +1398,21 @@ describe "EditorView", ->
           expect(editorView.renderedLines.find(".line:first").text()).toBe buffer.lineForRow(6)
           expect(editorView.renderedLines.find(".line:last").text()).toBe buffer.lineForRow(12)
 
-          buffer.change([[2,0], [7,0]], "2\n3\n4\n5\n6\n7\n8\n9\n")
+          buffer.setTextInRange([[2,0], [7,0]], "2\n3\n4\n5\n6\n7\n8\n9\n")
           expect(editorView.renderedLines.find(".line").length).toBe 7
           expect(editorView.renderedLines.find(".line:first").text()).toBe buffer.lineForRow(6)
           expect(editorView.renderedLines.find(".line:last").text()).toBe buffer.lineForRow(12)
 
       describe "when the change straddles the last rendered row", ->
         it "doesn't render rows that were not previously rendered", ->
-          buffer.change([[2,0], [7,0]], "2\n3\n4\n5\n6\n7\n8\n")
+          buffer.setTextInRange([[2,0], [7,0]], "2\n3\n4\n5\n6\n7\n8\n")
           expect(editorView.renderedLines.find(".line").length).toBe 7
           expect(editorView.renderedLines.find(".line:first").text()).toBe buffer.lineForRow(0)
           expect(editorView.renderedLines.find(".line:last").text()).toBe buffer.lineForRow(6)
 
       describe "when the change the follows the last rendered row", ->
         it "does not change the rendered lines", ->
-          buffer.change([[12,0], [12,0]], "12\n13\n14\n")
+          buffer.setTextInRange([[12,0], [12,0]], "12\n13\n14\n")
           expect(editorView.renderedLines.find(".line").length).toBe 7
           expect(editorView.renderedLines.find(".line:first").text()).toBe buffer.lineForRow(0)
           expect(editorView.renderedLines.find(".line:last").text()).toBe buffer.lineForRow(6)
@@ -1389,7 +1422,7 @@ describe "EditorView", ->
         setEditorWidthInChars(editorView, maxLineLength)
         widthBefore = editorView.renderedLines.width()
         expect(widthBefore).toBe editorView.scrollView.width() + 20
-        buffer.change([[12,0], [12,0]], [1..maxLineLength*2].join(''))
+        buffer.setTextInRange([[12,0], [12,0]], [1..maxLineLength*2].join(''))
         expect(editorView.renderedLines.width()).toBeGreaterThan widthBefore
 
     describe "when lines are removed", ->
@@ -1399,7 +1432,7 @@ describe "EditorView", ->
       it "sets the rendered screen line's width to either the max line length or the scollView's width (whichever is greater)", ->
         maxLineLength = editor.getMaxScreenLineLength()
         setEditorWidthInChars(editorView, maxLineLength)
-        buffer.change([[12,0], [12,0]], [1..maxLineLength*2].join(''))
+        buffer.setTextInRange([[12,0], [12,0]], [1..maxLineLength*2].join(''))
         expect(editorView.renderedLines.width()).toBeGreaterThan editorView.scrollView.width()
         widthBefore = editorView.renderedLines.width()
         buffer.delete([[12, 0], [12, Infinity]])
@@ -1412,7 +1445,7 @@ describe "EditorView", ->
           expect(editorView.renderedLines.find(".line:first").text()).toBe buffer.lineForRow(6)
           expect(editorView.renderedLines.find(".line:last").text()).toBe buffer.lineForRow(12)
 
-          buffer.change([[1,0], [2,0]], "")
+          buffer.setTextInRange([[1,0], [2,0]], "")
           expect(editorView.renderedLines.find(".line").length).toBe 6
           expect(editorView.renderedLines.find(".line:first").text()).toBe buffer.lineForRow(6)
           expect(editorView.renderedLines.find(".line:last").text()).toBe buffer.lineForRow(11)
@@ -1424,21 +1457,21 @@ describe "EditorView", ->
           expect(editorView.renderedLines.find(".line:first").text()).toBe buffer.lineForRow(6)
           expect(editorView.renderedLines.find(".line:last").text()).toBe buffer.lineForRow(12)
 
-          buffer.change([[7,0], [11,0]], "1\n2\n")
+          buffer.setTextInRange([[7,0], [11,0]], "1\n2\n")
           expect(editorView.renderedLines.find(".line").length).toBe 5
           expect(editorView.renderedLines.find(".line:first").text()).toBe buffer.lineForRow(6)
           expect(editorView.renderedLines.find(".line:last").text()).toBe buffer.lineForRow(10)
 
       describe "when the change straddles the last rendered row", ->
         it "renders the correct rows", ->
-          buffer.change([[2,0], [7,0]], "")
+          buffer.setTextInRange([[2,0], [7,0]], "")
           expect(editorView.renderedLines.find(".line").length).toBe 7
           expect(editorView.renderedLines.find(".line:first").text()).toBe buffer.lineForRow(0)
           expect(editorView.renderedLines.find(".line:last").text()).toBe buffer.lineForRow(6)
 
       describe "when the change the follows the last rendered row", ->
         it "does not change the rendered lines", ->
-          buffer.change([[10,0], [12,0]], "")
+          buffer.setTextInRange([[10,0], [12,0]], "")
           expect(editorView.renderedLines.find(".line").length).toBe 7
           expect(editorView.renderedLines.find(".line:first").text()).toBe buffer.lineForRow(0)
           expect(editorView.renderedLines.find(".line:last").text()).toBe buffer.lineForRow(6)
@@ -1563,7 +1596,7 @@ describe "EditorView", ->
           editor.setSoftWrap(true)
 
         it "doesn't show the end of line invisible at the end of lines broken due to wrapping", ->
-          editor.setText "a line that wraps"
+          editor.setText "a line that wraps "
           editorView.attachToDom()
           editorView.setWidthInChars(6)
           atom.config.set "editor.showInvisibles", true
@@ -1571,11 +1604,11 @@ describe "EditorView", ->
           expect(space).toBeTruthy()
           eol = editorView.invisibles?.eol
           expect(eol).toBeTruthy()
-          expect(editorView.renderedLines.find('.line:first').text()).toBe "a line#{space}"
-          expect(editorView.renderedLines.find('.line:last').text()).toBe "wraps#{eol}"
+          expect(editorView.renderedLines.find('.line:first').text()).toBe "a line "
+          expect(editorView.renderedLines.find('.line:last').text()).toBe "wraps#{space}#{eol}"
 
         it "displays trailing carriage return using a visible non-empty value", ->
-          editor.setText "a line that\r\n"
+          editor.setText "a line that \r\n"
           editorView.attachToDom()
           editorView.setWidthInChars(6)
           atom.config.set "editor.showInvisibles", true
@@ -1585,8 +1618,8 @@ describe "EditorView", ->
           expect(cr).toBeTruthy()
           eol = editorView.invisibles?.eol
           expect(eol).toBeTruthy()
-          expect(editorView.renderedLines.find('.line:first').text()).toBe "a line#{space}"
-          expect(editorView.renderedLines.find('.line:eq(1)').text()).toBe "that#{cr}#{eol}"
+          expect(editorView.renderedLines.find('.line:first').text()).toBe "a line "
+          expect(editorView.renderedLines.find('.line:eq(1)').text()).toBe "that#{space}#{cr}#{eol}"
           expect(editorView.renderedLines.find('.line:last').text()).toBe "#{eol}"
 
     describe "when editor.showIndentGuide is set to true", ->
@@ -2783,7 +2816,7 @@ describe "EditorView", ->
 
   describe "when the escape key is pressed on the editor view", ->
     it "clears multiple selections if there are any, and otherwise allows other bindings to be handled", ->
-      atom.keymap.bindKeys 'name', '.editor', {'escape': 'test-event'}
+      atom.keymaps.bindKeys 'name', '.editor', {'escape': 'test-event'}
       testEventHandler = jasmine.createSpy("testEventHandler")
 
       editorView.on 'test-event', testEventHandler
@@ -2875,6 +2908,20 @@ describe "EditorView", ->
       for rowNumber in [1..5]
         expect(editorView.lineElementForScreenRow(rowNumber).text()).toBe buffer.lineForRow(rowNumber)
 
+    it "correctly calculates the position left for non-monospaced invisibles", ->
+      editorView.setShowInvisibles(true)
+      editorView.setInvisibles tab: '♘'
+      editor.setText('\tx')
+
+      editorView.setFontFamily('serif')
+      editorView.setFontSize(10)
+      editorView.attachToDom()
+      editorView.setWidthInChars(5)
+
+      expect(editorView.pixelPositionForScreenPosition([0, 0]).left).toEqual 0
+      expect(editorView.pixelPositionForScreenPosition([0, 1]).left).toEqual 10
+      expect(editorView.pixelPositionForScreenPosition([0, 2]).left).toEqual 13
+
   describe "when the window is resized", ->
     it "updates the active edit session with the current soft wrap column", ->
       editorView.attachToDom()
@@ -2903,6 +2950,30 @@ describe "EditorView", ->
         editorView.pixelPositionForScreenPosition([1, 5])
         expect(editorView.measureToColumn.callCount).toBe 0
 
+  describe "when stylesheets are changed", ->
+    afterEach ->
+      atom.themes.removeStylesheet 'line-height'
+      atom.themes.removeStylesheet 'char-width'
+
+    it "updates the editor if the line height or character width changes due to a stylesheet change", ->
+      editorView.attachToDom()
+      editor.setCursorScreenPosition([1, 3])
+      expect(editorView.pixelPositionForScreenPosition([1, 3])).toEqual {top: 20, left: 30}
+      expect(editorView.getCursorView().position()).toEqual {top: 20, left: 30}
+
+      atom.themes.applyStylesheet 'line-height', """
+        .editor { line-height: 2; }
+      """
+
+      expect(editorView.pixelPositionForScreenPosition([1, 3])).toEqual {top: 20, left: 30}
+      expect(editorView.getCursorView().position()).toEqual {top: 20, left: 30}
+
+      atom.themes.applyStylesheet 'char-width', """
+        .editor { letter-spacing: 2px; }
+      """
+      expect(editorView.pixelPositionForScreenPosition([1, 3])).toEqual {top: 20, left: 36}
+      expect(editorView.getCursorView().position()).toEqual {top: 20, left: 36}
+
   describe "when the editor contains hard tabs", ->
     it "correctly calculates the the position left for a column", ->
       editor.setText('\ttest')

spec/fixtures/packages/package-with-empty-activation-events/index.coffee

@@ -0,0 +1 @@
+module.exports = activate: ->

spec/fixtures/packages/package-with-empty-activation-events/package.json

@@ -0,0 +1,5 @@
+{
+  "name": "no events",
+  "version": "0.1.0",
+  "activationEvents": []
+}

spec/git-spec.coffee

@@ -177,6 +177,24 @@ describe "Git", ->
       status = repo.getPathStatus(filePath)
       expect(statusHandler.callCount).toBe 1
 
+  describe ".getDirectoryStatus(path)", ->
+    [directoryPath, filePath, originalPathText] = []
+
+    beforeEach ->
+      repo = new Git(path.join(__dirname, 'fixtures', 'git', 'working-dir'))
+      directoryPath = path.join(__dirname, 'fixtures', 'git', 'working-dir', 'dir')
+      filePath = require.resolve('./fixtures/git/working-dir/dir/b.txt')
+      originalPathText = fs.readFileSync(filePath, 'utf8')
+
+    afterEach ->
+      fs.writeFileSync(filePath, originalPathText)
+
+    it "gets the status based on the files inside the directory", ->
+      expect(repo.isStatusModified(repo.getDirectoryStatus(directoryPath))).toBe false
+      fs.writeFileSync(filePath, 'abc')
+      repo.getPathStatus(filePath)
+      expect(repo.isStatusModified(repo.getDirectoryStatus(directoryPath))).toBe true
+
   describe ".refreshStatus()", ->
     [newPath, modifiedPath, cleanPath, originalModifiedPathText] = []
 
@@ -203,10 +221,9 @@ describe "Git", ->
         statusHandler.callCount > 0
 
       runs ->
-        statuses = repo.statuses
-        expect(statuses[cleanPath]).toBeUndefined()
-        expect(repo.isStatusNew(statuses[newPath])).toBeTruthy()
-        expect(repo.isStatusModified(statuses[modifiedPath])).toBeTruthy()
+        expect(repo.getCachedPathStatus(cleanPath)).toBeUndefined()
+        expect(repo.isStatusNew(repo.getCachedPathStatus(newPath))).toBeTruthy()
+        expect(repo.isStatusModified(repo.getCachedPathStatus(modifiedPath))).toBeTruthy()
 
   describe "buffer events", ->
     [originalContent, editor] = []

spec/keymap-spec.coffee

@@ -1,454 +0,0 @@
-fs = require 'fs-plus'
-path = require 'path'
-temp = require 'temp'
-Keymap = require '../src/keymap'
-{$, $$, WorkspaceView} = require 'atom'
-
-describe "Keymap", ->
-  fragment = null
-  keymap = null
-  resourcePath = atom.getLoadSettings().resourcePath
-  configDirPath = null
-
-  beforeEach ->
-    configDirPath = temp.mkdirSync('atom')
-    keymap = new Keymap({configDirPath, resourcePath})
-    fragment = $ """
-      <div class="command-mode">
-        <div class="child-node">
-          <div class="grandchild-node"/>
-        </div>
-      </div>
-    """
-
-  afterEach ->
-    keymap.destroy()
-
-  describe ".handleKeyEvent(event)", ->
-    deleteCharHandler = null
-    insertCharHandler = null
-    commandZHandler = null
-
-    beforeEach ->
-      keymap.bindKeys 'name', '.command-mode', 'x': 'deleteChar'
-      keymap.bindKeys 'name', '.insert-mode', 'x': 'insertChar'
-      keymap.bindKeys 'name', '.command-mode', 'cmd-z': 'commandZPressed'
-
-      deleteCharHandler = jasmine.createSpy('deleteCharHandler')
-      insertCharHandler = jasmine.createSpy('insertCharHandler')
-      commandZHandler = jasmine.createSpy('commandZHandler')
-      fragment.on 'deleteChar', deleteCharHandler
-      fragment.on 'insertChar', insertCharHandler
-      fragment.on 'commandZPressed', commandZHandler
-
-    describe "when no binding matches the event's keystroke", ->
-      it "does not return false so the event continues to propagate", ->
-        expect(keymap.handleKeyEvent(keydownEvent('0', target: fragment[0]))).not.toBe false
-
-    describe "when a non-English keyboard language is used", ->
-      it "uses the physical character pressed instead of the character it maps to in the current language", ->
-        event = keydownEvent('U+03B6', metaKey: true, which: 122, target: fragment[0]) # This is the 'z' key using the Greek keyboard layout
-        result = keymap.handleKeyEvent(event)
-
-        expect(result).toBe(false)
-        expect(commandZHandler).toHaveBeenCalled()
-
-    describe "when at least one binding fully matches the event's keystroke", ->
-      describe "when the event's target node matches a selector with a matching binding", ->
-        it "triggers the command event associated with that binding on the target node and returns false", ->
-          result = keymap.handleKeyEvent(keydownEvent('x', target: fragment[0]))
-          expect(result).toBe(false)
-          expect(deleteCharHandler).toHaveBeenCalled()
-          expect(insertCharHandler).not.toHaveBeenCalled()
-
-          deleteCharHandler.reset()
-          fragment.removeClass('command-mode').addClass('insert-mode')
-
-          event = keydownEvent('x', target: fragment[0])
-          keymap.handleKeyEvent(event)
-          expect(deleteCharHandler).not.toHaveBeenCalled()
-          expect(insertCharHandler).toHaveBeenCalled()
-
-      describe "when the event's target node *descends* from a selector with a matching binding", ->
-        it "triggers the command event associated with that binding on the target node and returns false", ->
-          target = fragment.find('.child-node')[0]
-          result = keymap.handleKeyEvent(keydownEvent('x', target: target))
-          expect(result).toBe(false)
-          expect(deleteCharHandler).toHaveBeenCalled()
-          expect(insertCharHandler).not.toHaveBeenCalled()
-
-          deleteCharHandler.reset()
-          fragment.removeClass('command-mode').addClass('insert-mode')
-
-          keymap.handleKeyEvent(keydownEvent('x', target: target))
-          expect(deleteCharHandler).not.toHaveBeenCalled()
-          expect(insertCharHandler).toHaveBeenCalled()
-
-      describe "when the event's target node descends from multiple nodes that match selectors with a binding", ->
-        beforeEach ->
-          keymap.bindKeys 'name', '.child-node', 'x': 'foo'
-
-        it "only triggers bindings on selectors associated with the closest ancestor node", ->
-          fooHandler = jasmine.createSpy 'fooHandler'
-          fragment.on 'foo', fooHandler
-
-          target = fragment.find('.grandchild-node')[0]
-          keymap.handleKeyEvent(keydownEvent('x', target: target))
-          expect(fooHandler).toHaveBeenCalled()
-          expect(deleteCharHandler).not.toHaveBeenCalled()
-          expect(insertCharHandler).not.toHaveBeenCalled()
-
-        describe "when 'abortKeyBinding' is called on the triggered event", ->
-          [fooHandler1, fooHandler2] = []
-
-          beforeEach ->
-            fooHandler1 = jasmine.createSpy('fooHandler1').andCallFake (e) ->
-              expect(deleteCharHandler).not.toHaveBeenCalled()
-              e.abortKeyBinding()
-            fooHandler2 = jasmine.createSpy('fooHandler2')
-
-            fragment.find('.child-node').on 'foo', fooHandler1
-            fragment.on 'foo', fooHandler2
-
-          it "aborts the current event and tries again with the next-most-specific key binding",  ->
-            target = fragment.find('.grandchild-node')[0]
-            keymap.handleKeyEvent(keydownEvent('x', target: target))
-            expect(fooHandler1).toHaveBeenCalled()
-            expect(fooHandler2).not.toHaveBeenCalled()
-            expect(deleteCharHandler).toHaveBeenCalled()
-
-          it "does not throw an exception if the event was not triggered by the keymap",  ->
-            fragment.find('.grandchild-node').trigger 'foo'
-
-      describe "when the event bubbles to a node that matches multiple selectors", ->
-        describe "when the matching selectors differ in specificity", ->
-          it "triggers the binding for the most specific selector", ->
-            keymap.bindKeys 'name', 'div .child-node', 'x': 'foo'
-            keymap.bindKeys 'name', '.command-mode .child-node !important', 'x': 'baz'
-            keymap.bindKeys 'name', '.command-mode .child-node', 'x': 'quux'
-            keymap.bindKeys 'name', '.child-node', 'x': 'bar'
-
-            fooHandler = jasmine.createSpy 'fooHandler'
-            barHandler = jasmine.createSpy 'barHandler'
-            bazHandler = jasmine.createSpy 'bazHandler'
-            fragment.on 'foo', fooHandler
-            fragment.on 'bar', barHandler
-            fragment.on 'baz', bazHandler
-
-            target = fragment.find('.grandchild-node')[0]
-            keymap.handleKeyEvent(keydownEvent('x', target: target))
-
-            expect(fooHandler).not.toHaveBeenCalled()
-            expect(barHandler).not.toHaveBeenCalled()
-            expect(bazHandler).toHaveBeenCalled()
-
-        describe "when the matching selectors have the same specificity", ->
-          it "triggers the bindings for the most recently declared selector", ->
-            keymap.bindKeys 'name', '.child-node', 'x': 'foo', 'y': 'baz'
-            keymap.bindKeys 'name', '.child-node', 'x': 'bar'
-
-            fooHandler = jasmine.createSpy 'fooHandler'
-            barHandler = jasmine.createSpy 'barHandler'
-            bazHandler = jasmine.createSpy 'bazHandler'
-            fragment.on 'foo', fooHandler
-            fragment.on 'bar', barHandler
-            fragment.on 'baz', bazHandler
-
-            target = fragment.find('.grandchild-node')[0]
-            keymap.handleKeyEvent(keydownEvent('x', target: target))
-
-            expect(barHandler).toHaveBeenCalled()
-            expect(fooHandler).not.toHaveBeenCalled()
-
-            keymap.handleKeyEvent(keydownEvent('y', target: target))
-            expect(bazHandler).toHaveBeenCalled()
-
-      describe "when the event's target is the document body", ->
-        it "triggers the mapped event on the workspaceView", ->
-          atom.workspaceView = new WorkspaceView
-          atom.workspaceView.attachToDom()
-          keymap.bindKeys 'name', 'body', 'x': 'foo'
-          fooHandler = jasmine.createSpy("fooHandler")
-          atom.workspaceView.on 'foo', fooHandler
-
-          result = keymap.handleKeyEvent(keydownEvent('x', target: document.body))
-          expect(result).toBe(false)
-          expect(fooHandler).toHaveBeenCalled()
-          expect(deleteCharHandler).not.toHaveBeenCalled()
-          expect(insertCharHandler).not.toHaveBeenCalled()
-
-      describe "when the event matches a 'native!' binding", ->
-        it "returns true, allowing the browser's native key handling to process the event", ->
-          keymap.bindKeys 'name', '.grandchild-node', 'x': 'native!'
-          nativeHandler = jasmine.createSpy("nativeHandler")
-          fragment.on 'native!', nativeHandler
-          expect(keymap.handleKeyEvent(keydownEvent('x', target: fragment.find('.grandchild-node')[0]))).toBe true
-          expect(nativeHandler).not.toHaveBeenCalled()
-
-    describe "when at least one binding partially matches the event's keystroke", ->
-      [quitHandler, closeOtherWindowsHandler] = []
-
-      beforeEach ->
-        keymap.bindKeys 'name', "*",
-          'ctrl-x ctrl-c': 'quit'
-          'ctrl-x 1': 'close-other-windows'
-
-        quitHandler = jasmine.createSpy('quitHandler')
-        closeOtherWindowsHandler = jasmine.createSpy('closeOtherWindowsHandler')
-        fragment.on 'quit', quitHandler
-        fragment.on 'close-other-windows', closeOtherWindowsHandler
-
-      it "only matches entire keystroke patterns", ->
-        expect(keymap.handleKeyEvent(keydownEvent('c', target: fragment[0]))).not.toBe false
-
-      describe "when the event's target node matches a selector with a partially matching multi-stroke binding", ->
-        describe "when a second keystroke added to the first to match a multi-stroke binding completely", ->
-          it "triggers the event associated with the matched multi-stroke binding", ->
-            expect(keymap.handleKeyEvent(keydownEvent('x', target: fragment[0], ctrlKey: true))).toBeFalsy()
-            expect(keymap.handleKeyEvent(keydownEvent('ctrl', target: fragment[0]))).toBeFalsy() # This simulates actual key event behavior
-            expect(keymap.handleKeyEvent(keydownEvent('c', target: fragment[0], ctrlKey: true))).toBeFalsy()
-
-            expect(quitHandler).toHaveBeenCalled()
-            expect(closeOtherWindowsHandler).not.toHaveBeenCalled()
-            quitHandler.reset()
-
-            expect(keymap.handleKeyEvent(keydownEvent('x', target: fragment[0], ctrlKey: true))).toBeFalsy()
-            expect(keymap.handleKeyEvent(keydownEvent('1', target: fragment[0]))).toBeFalsy()
-
-            expect(quitHandler).not.toHaveBeenCalled()
-            expect(closeOtherWindowsHandler).toHaveBeenCalled()
-
-        describe "when a second keystroke added to the first doesn't match any bindings", ->
-          it "clears the queued keystroke without triggering any events", ->
-            expect(keymap.handleKeyEvent(keydownEvent('x', target: fragment[0], ctrlKey: true))).toBe false
-            expect(keymap.handleKeyEvent(keydownEvent('c', target: fragment[0]))).toBe false
-            expect(quitHandler).not.toHaveBeenCalled()
-            expect(closeOtherWindowsHandler).not.toHaveBeenCalled()
-
-            expect(keymap.handleKeyEvent(keydownEvent('c', target: fragment[0]))).not.toBe false
-
-      describe "when the event's target node descends from multiple nodes that match selectors with a partial binding match", ->
-        it "allows any of the bindings to be triggered upon a second keystroke, favoring the most specific selector", ->
-          keymap.bindKeys 'name', ".grandchild-node", 'ctrl-x ctrl-c': 'more-specific-quit'
-          grandchildNode = fragment.find('.grandchild-node')[0]
-          moreSpecificQuitHandler = jasmine.createSpy('moreSpecificQuitHandler')
-          fragment.on 'more-specific-quit', moreSpecificQuitHandler
-
-          expect(keymap.handleKeyEvent(keydownEvent('x', target: grandchildNode, ctrlKey: true))).toBeFalsy()
-          expect(keymap.handleKeyEvent(keydownEvent('1', target: grandchildNode))).toBeFalsy()
-          expect(quitHandler).not.toHaveBeenCalled()
-          expect(moreSpecificQuitHandler).not.toHaveBeenCalled()
-          expect(closeOtherWindowsHandler).toHaveBeenCalled()
-          closeOtherWindowsHandler.reset()
-
-          expect(keymap.handleKeyEvent(keydownEvent('x', target: grandchildNode, ctrlKey: true))).toBeFalsy()
-          expect(keymap.handleKeyEvent(keydownEvent('c', target: grandchildNode, ctrlKey: true))).toBeFalsy()
-          expect(quitHandler).not.toHaveBeenCalled()
-          expect(closeOtherWindowsHandler).not.toHaveBeenCalled()
-          expect(moreSpecificQuitHandler).toHaveBeenCalled()
-
-      describe "when there is a complete binding with a less specific selector", ->
-        it "favors the more specific partial match", ->
-
-      describe "when there is a complete binding with a more specific selector", ->
-        it "favors the more specific complete match", ->
-
-  describe ".bindKeys(name, selector, bindings)", ->
-    it "normalizes bindings that use shift with lower case alpha char", ->
-      fooHandler = jasmine.createSpy('fooHandler')
-      fragment.on 'foo', fooHandler
-      keymap.bindKeys 'name', '*', 'ctrl-shift-l': 'foo'
-      result = keymap.handleKeyEvent(keydownEvent('l', ctrlKey: true, altKey: false, shiftKey: true, target: fragment[0]))
-      expect(result).toBe(false)
-      expect(fooHandler).toHaveBeenCalled()
-
-    it "normalizes bindings that use shift with upper case alpha char", ->
-      fooHandler = jasmine.createSpy('fooHandler')
-      fragment.on 'foo', fooHandler
-      keymap.bindKeys 'name', '*', 'ctrl-shift-L': 'foo'
-      result = keymap.handleKeyEvent(keydownEvent('l', ctrlKey: true, altKey: false, shiftKey: true, target: fragment[0]))
-      expect(result).toBe(false)
-      expect(fooHandler).toHaveBeenCalled()
-
-    it "normalizes bindings that use an upper case alpha char without shift", ->
-      fooHandler = jasmine.createSpy('fooHandler')
-      fragment.on 'foo', fooHandler
-      keymap.bindKeys 'name', '*', 'ctrl-L': 'foo'
-      result = keymap.handleKeyEvent(keydownEvent('l', ctrlKey: true, altKey: false, shiftKey: true, target: fragment[0]))
-      expect(result).toBe(false)
-      expect(fooHandler).toHaveBeenCalled()
-
-    it "normalizes the key patterns in the hash to put the modifiers in alphabetical order", ->
-      fooHandler = jasmine.createSpy('fooHandler')
-      fragment.on 'foo', fooHandler
-      keymap.bindKeys 'name', '*', 'ctrl-alt-delete': 'foo'
-      result = keymap.handleKeyEvent(keydownEvent('delete', ctrlKey: true, altKey: true, target: fragment[0]))
-      expect(result).toBe(false)
-      expect(fooHandler).toHaveBeenCalled()
-
-      fooHandler.reset()
-      keymap.bindKeys 'name', '*', 'ctrl-alt--': 'foo'
-      result = keymap.handleKeyEvent(keydownEvent('-', ctrlKey: true, altKey: true, target: fragment[0]))
-      expect(result).toBe(false)
-      expect(fooHandler).toHaveBeenCalled()
-
-  describe ".remove(name)", ->
-    it "removes the binding set with the given selector and bindings", ->
-      keymap.add 'nature',
-        '.green':
-          'ctrl-c': 'cultivate'
-        '.brown':
-          'ctrl-h': 'harvest'
-
-      keymap.add 'medical',
-        '.green':
-          'ctrl-v': 'vomit'
-
-      expect(keymap.keyBindingsMatchingElement($$ -> @div class: 'green')).toHaveLength 2
-      expect(keymap.keyBindingsMatchingElement($$ -> @div class: 'brown')).toHaveLength 1
-
-      keymap.remove('nature')
-
-      expect(keymap.keyBindingsMatchingElement($$ -> @div class: 'green')).toHaveLength 1
-      expect(keymap.keyBindingsMatchingElement($$ -> @div class: 'brown')).toEqual []
-
-  describe ".keystrokeStringForEvent(event)", ->
-    describe "when no modifiers are pressed", ->
-      it "returns a string that identifies the key pressed", ->
-        expect(keymap.keystrokeStringForEvent(keydownEvent('a'))).toBe 'a'
-        expect(keymap.keystrokeStringForEvent(keydownEvent('['))).toBe '['
-        expect(keymap.keystrokeStringForEvent(keydownEvent('*'))).toBe '*'
-        expect(keymap.keystrokeStringForEvent(keydownEvent('left'))).toBe 'left'
-        expect(keymap.keystrokeStringForEvent(keydownEvent('\b'))).toBe 'backspace'
-
-    describe "when ctrl, alt or command is pressed with a non-modifier key", ->
-      it "returns a string that identifies the key pressed", ->
-        expect(keymap.keystrokeStringForEvent(keydownEvent('a', altKey: true))).toBe 'alt-a'
-        expect(keymap.keystrokeStringForEvent(keydownEvent('[', metaKey: true))).toBe 'cmd-['
-        expect(keymap.keystrokeStringForEvent(keydownEvent('*', ctrlKey: true))).toBe 'ctrl-*'
-        expect(keymap.keystrokeStringForEvent(keydownEvent('left', ctrlKey: true, metaKey: true, altKey: true))).toBe 'alt-cmd-ctrl-left'
-
-    describe "when shift is pressed when a non-modifer key", ->
-      it "returns a string that identifies the key pressed", ->
-        expect(keymap.keystrokeStringForEvent(keydownEvent('A', shiftKey: true))).toBe 'shift-A'
-        expect(keymap.keystrokeStringForEvent(keydownEvent('{', shiftKey: true))).toBe '{'
-        expect(keymap.keystrokeStringForEvent(keydownEvent('left', shiftKey: true))).toBe 'shift-left'
-        expect(keymap.keystrokeStringForEvent(keydownEvent('Left', shiftKey: true))).toBe 'shift-left'
-
-  describe ".keyBindingsMatchingElement(element)", ->
-    it "returns the matching bindings for the element", ->
-      keymap.bindKeys 'name', '.command-mode', 'c': 'c'
-      keymap.bindKeys 'name', '.grandchild-node', 'g': 'g'
-
-      bindings = keymap.keyBindingsMatchingElement(fragment.find('.grandchild-node'))
-      expect(bindings).toHaveLength 2
-      expect(bindings[0].command).toEqual "g"
-      expect(bindings[1].command).toEqual "c"
-
-    describe "when multiple bindings match a keystroke", ->
-      it "only returns bindings that match the most specific selector", ->
-        keymap.bindKeys 'name', '.command-mode', 'g': 'cmd-mode'
-        keymap.bindKeys 'name', '.command-mode .grandchild-node', 'g': 'cmd-and-grandchild-node'
-        keymap.bindKeys 'name', '.grandchild-node', 'g': 'grandchild-node'
-
-        bindings = keymap.keyBindingsMatchingElement(fragment.find('.grandchild-node'))
-        expect(bindings).toHaveLength 3
-        expect(bindings[0].command).toEqual "cmd-and-grandchild-node"
-
-  describe ".keyBindingsForCommandMatchingElement(element)", ->
-    beforeEach ->
-      keymap.add 'nature',
-        '.green':
-          'ctrl-c': 'cultivate'
-        '.green-2':
-          'ctrl-o': 'cultivate'
-        '.brown':
-          'ctrl-h': 'harvest'
-        '.blue':
-          'ctrl-c': 'fly'
-
-    it "finds a keymap for an element", ->
-      el = $$ -> @div class: 'green'
-      bindings = keymap.keyBindingsForCommandMatchingElement('cultivate', el)
-      expect(bindings).toHaveLength 1
-      expect(bindings[0].keystroke).toEqual "ctrl-c"
-
-    it "no keymap an element without that map", ->
-      el = $$ -> @div class: 'brown'
-      bindings = keymap.keyBindingsForCommandMatchingElement('cultivate', el)
-      expect(bindings).toHaveLength 0
-
-  describe "loading platform specific keybindings", ->
-    customKeymap = null
-
-    beforeEach ->
-      resourcePath = temp.mkdirSync('atom')
-      customKeymap = new Keymap({configDirPath, resourcePath})
-
-    afterEach ->
-      customKeymap.destroy()
-
-    it "doesn't load keybindings from other platforms", ->
-      win32FilePath = path.join(resourcePath, "keymaps", "win32.cson")
-      darwinFilePath = path.join(resourcePath, "keymaps", "darwin.cson")
-      fs.writeFileSync(win32FilePath, '"body": "ctrl-l": "core:win32-move-left"')
-      fs.writeFileSync(darwinFilePath, '"body": "ctrl-l": "core:darwin-move-left"')
-
-      customKeymap.loadBundledKeymaps()
-      keyBindings = customKeymap.keyBindingsForKeystroke('ctrl-l')
-      expect(keyBindings).toHaveLength 1
-      expect(keyBindings[0].command).toBe "core:#{process.platform}-move-left"
-
-  describe "when the user keymap file is changed", ->
-    it "is reloaded", ->
-      keymapFilePath = path.join(configDirPath, "keymap.cson")
-      fs.writeFileSync(keymapFilePath, '"body": "ctrl-l": "core:move-left"')
-      keymap.loadUserKeymap()
-
-      spyOn(keymap, 'loadUserKeymap').andCallThrough()
-      fs.writeFileSync(keymapFilePath, "'body': 'ctrl-l': 'core:move-right'")
-
-      waitsFor ->
-        keymap.loadUserKeymap.callCount > 0
-
-      runs ->
-        keyBinding = keymap.keyBindingsForKeystroke('ctrl-l')[0]
-        expect(keyBinding.command).toBe 'core:move-right'
-        keymap.loadUserKeymap.reset()
-        fs.removeSync(keymapFilePath)
-
-      waitsFor ->
-        keymap.loadUserKeymap.callCount > 0
-
-      runs ->
-        keyBinding = keymap.keyBindingsForKeystroke('ctrl-l')[0]
-        expect(keyBinding).toBeUndefined()
-
-    it "logs a warning when it can't be parsed", ->
-      keymapFilePath = path.join(configDirPath, "keymap.json")
-      fs.writeFileSync(keymapFilePath, '')
-      keymap.loadUserKeymap()
-
-      spyOn(keymap, 'loadUserKeymap').andCallThrough()
-      fs.writeFileSync(keymapFilePath, '}{')
-      spyOn(console, 'warn')
-
-      waitsFor ->
-        keymap.loadUserKeymap.callCount > 0
-
-      runs ->
-        expect(console.warn.callCount).toBe 1
-        expect(console.warn.argsForCall[0][0].length).toBeGreaterThan 0
-
-  describe "when adding a binding with an invalid selector", ->
-    it "logs a warning and does not add it", ->
-      spyOn(console, 'warn')
-      keybinding =
-        '##selector':
-          'cmd-a': 'invalid-command'
-      keymap.add('test', keybinding)
-
-      expect(console.warn.callCount).toBe 1
-      expect(console.warn.argsForCall[0][0].length).toBeGreaterThan 0
-      expect(-> keymap.keyBindingsMatchingElement(document.body)).not.toThrow()
-      expect(keymap.keyBindingsForCommand('invalid:command')).toEqual []

spec/language-mode-spec.coffee

@@ -46,6 +46,16 @@ describe "LanguageMode", ->
         languageMode.toggleLineCommentsForBufferRows(0, 0)
         expect(buffer.lineForRow(0)).toBe " // var i;"
 
+        buffer.setText('  ')
+        languageMode.toggleLineCommentsForBufferRows(0, 0)
+        expect(buffer.lineForRow(0)).toBe "  // "
+
+        buffer.setText ('    a\n  \n    b')
+        languageMode.toggleLineCommentsForBufferRows(0, 2)
+        expect(buffer.lineForRow(0)).toBe "    // a"
+        expect(buffer.lineForRow(1)).toBe "    // "
+        expect(buffer.lineForRow(2)).toBe "    // b"
+
     describe ".rowRangeForCodeFoldAtBufferRow(bufferRow)", ->
       it "returns the start/end rows of the foldable region starting at the given row", ->
         expect(languageMode.rowRangeForCodeFoldAtBufferRow(0)).toEqual [0, 12]
@@ -178,17 +188,17 @@ describe "LanguageMode", ->
         expect(buffer.lineForRow(3)).toBe "  font-weight: bold !important;"
 
       it "uncomments lines with leading whitespace", ->
-        buffer.change([[2, 0], [2, Infinity]], "  /*width: 110%;*/")
+        buffer.setTextInRange([[2, 0], [2, Infinity]], "  /*width: 110%;*/")
         languageMode.toggleLineCommentsForBufferRows(2, 2)
         expect(buffer.lineForRow(2)).toBe "  width: 110%;"
 
       it "uncomments lines with trailing whitespace", ->
-        buffer.change([[2, 0], [2, Infinity]], "/*width: 110%;*/  ")
+        buffer.setTextInRange([[2, 0], [2, Infinity]], "/*width: 110%;*/  ")
         languageMode.toggleLineCommentsForBufferRows(2, 2)
         expect(buffer.lineForRow(2)).toBe "width: 110%;  "
 
       it "uncomments lines with leading and trailing whitespace", ->
-        buffer.change([[2, 0], [2, Infinity]], "   /*width: 110%;*/ ")
+        buffer.setTextInRange([[2, 0], [2, Infinity]], "   /*width: 110%;*/ ")
         languageMode.toggleLineCommentsForBufferRows(2, 2)
         expect(buffer.lineForRow(2)).toBe "   width: 110%; "
 
@@ -208,6 +218,20 @@ describe "LanguageMode", ->
         languageMode.toggleLineCommentsForBufferRows(0, 0)
         expect(buffer.lineForRow(0)).toBe "// @color: #4D926F;"
 
+  describe "xml", ->
+    beforeEach ->
+      editor = atom.project.openSync('sample.xml', autoIndent: false)
+      editor.setText("<!-- test -->")
+      {buffer, languageMode} = editor
+
+      waitsForPromise ->
+        atom.packages.activatePackage('language-xml')
+
+    describe "when uncommenting lines", ->
+      it "removes the leading whitespace from the comment end pattern match", ->
+        languageMode.toggleLineCommentsForBufferRows(0, 0)
+        expect(buffer.lineForRow(0)).toBe "test"
+
   describe "folding", ->
     beforeEach ->
       editor = atom.project.openSync('sample.js', autoIndent: false)

spec/pane-container-view-spec.coffee

@@ -27,7 +27,7 @@ describe "PaneContainerView", ->
   afterEach ->
     atom.deserializers.remove(TestView)
 
-  describe ".getActivePane()", ->
+  describe ".getActivePaneView()", ->
     it "returns the most-recently focused pane", ->
       focusStealer = $$ -> @div tabindex: -1, "focus stealer"
       focusStealer.attachToDom()
@@ -35,15 +35,15 @@ describe "PaneContainerView", ->
 
       pane2.focus()
       expect(container.getFocusedPane()).toBe pane2
-      expect(container.getActivePane()).toBe pane2
+      expect(container.getActivePaneView()).toBe pane2
 
       focusStealer.focus()
       expect(container.getFocusedPane()).toBeUndefined()
-      expect(container.getActivePane()).toBe pane2
+      expect(container.getActivePaneView()).toBe pane2
 
       pane3.focus()
       expect(container.getFocusedPane()).toBe pane3
-      expect(container.getActivePane()).toBe pane3
+      expect(container.getActivePaneView()).toBe pane3
 
   describe ".eachPaneView(callback)", ->
     it "runs the callback with all current and future panes until the subscription is cancelled", ->

spec/pane-spec.coffee

@@ -292,7 +292,7 @@ describe "Pane", ->
         pane.activeItem.path = __filename
         pane.activeItem.saveAs = jasmine.createSpy("saveAs")
         pane.saveActiveItemAs()
-        expect(atom.showSaveDialogSync).toHaveBeenCalledWith(__dirname)
+        expect(atom.showSaveDialogSync).toHaveBeenCalledWith(__filename)
         expect(pane.activeItem.saveAs).toHaveBeenCalledWith('/selected/path')
 
     describe "when the current item does not have a saveAs method", ->

spec/pane-view-spec.coffee

@@ -159,14 +159,14 @@ describe "PaneView", ->
 
   describe "when an unmodifed buffer's path is deleted", ->
     it "removes the pane item", ->
+      jasmine.unspy(window, 'setTimeout')
       filePath = temp.openSync('atom').path
       editor = atom.project.openSync(filePath)
       pane.activateItem(editor)
       expect(pane.items).toHaveLength(5)
 
       fs.removeSync(filePath)
-      waitsFor 30000, ->
-        pane.items.length == 4
+      waitsFor -> pane.items.length == 4
 
   describe "when a pane is destroyed", ->
     [pane2, pane2Model] = []

spec/project-spec.coffee

@@ -33,21 +33,7 @@ describe "Project", ->
       deserializedProject.getBuffers()[0].destroy()
       expect(deserializedProject.getBuffers().length).toBe 0
 
-  describe "when an edit session is destroyed", ->
-    it "removes edit session and calls destroy on buffer (if buffer is not referenced by other edit sessions)", ->
-      editor = atom.project.openSync("a")
-      anotherEditor = atom.project.openSync("a")
-
-      expect(atom.project.editors.length).toBe 2
-      expect(editor.buffer).toBe anotherEditor.buffer
-
-      editor.destroy()
-      expect(atom.project.editors.length).toBe 1
-
-      anotherEditor.destroy()
-      expect(atom.project.editors.length).toBe 0
-
-  describe "when an edit session is saved and the project has no path", ->
+  describe "when an editor is saved and the project has no path", ->
     it "sets the project's path to the saved file's parent directory", ->
       tempFile = temp.openSync().path
       atom.project.setPath(undefined)
@@ -56,73 +42,49 @@ describe "Project", ->
       editor.saveAs(tempFile)
       expect(atom.project.getPath()).toBe path.dirname(tempFile)
 
-  describe "when an edit session is copied", ->
-    it "emits an 'editor-created' event and stores the edit session", ->
-      handler = jasmine.createSpy('editorCreatedHandler')
-      atom.project.on 'editor-created', handler
-
-      editor1 = atom.project.openSync("a")
-      expect(handler.callCount).toBe 1
-      expect(atom.project.getEditors().length).toBe 1
-      expect(atom.project.getEditors()[0]).toBe editor1
-
-      editor2 = editor1.copy()
-      expect(handler.callCount).toBe 2
-      expect(atom.project.getEditors().length).toBe 2
-      expect(atom.project.getEditors()[0]).toBe editor1
-      expect(atom.project.getEditors()[1]).toBe editor2
-
   describe ".openSync(path)", ->
-    [absolutePath, newBufferHandler, newEditorHandler] = []
+    [absolutePath, newBufferHandler] = []
     beforeEach ->
       absolutePath = require.resolve('./fixtures/dir/a')
       newBufferHandler = jasmine.createSpy('newBufferHandler')
       atom.project.on 'buffer-created', newBufferHandler
-      newEditorHandler = jasmine.createSpy('newEditorHandler')
-      atom.project.on 'editor-created', newEditorHandler
 
     describe "when given an absolute path that hasn't been opened previously", ->
-      it "returns a new edit session for the given path and emits 'buffer-created' and 'editor-created' events", ->
+      it "returns a new edit session for the given path and emits 'buffer-created'", ->
         editor = atom.project.openSync(absolutePath)
         expect(editor.buffer.getPath()).toBe absolutePath
         expect(newBufferHandler).toHaveBeenCalledWith editor.buffer
-        expect(newEditorHandler).toHaveBeenCalledWith editor
 
     describe "when given a relative path that hasn't been opened previously", ->
-      it "returns a new edit session for the given path (relative to the project root) and emits 'buffer-created' and 'editor-created' events", ->
+      it "returns a new edit session for the given path (relative to the project root) and emits 'buffer-created'", ->
         editor = atom.project.openSync('a')
         expect(editor.buffer.getPath()).toBe absolutePath
         expect(newBufferHandler).toHaveBeenCalledWith editor.buffer
-        expect(newEditorHandler).toHaveBeenCalledWith editor
 
     describe "when passed the path to a buffer that has already been opened", ->
-      it "returns a new edit session containing previously opened buffer and emits a 'editor-created' event", ->
+      it "returns a new edit session containing previously opened buffer", ->
         editor = atom.project.openSync(absolutePath)
         newBufferHandler.reset()
         expect(atom.project.openSync(absolutePath).buffer).toBe editor.buffer
         expect(atom.project.openSync('a').buffer).toBe editor.buffer
         expect(newBufferHandler).not.toHaveBeenCalled()
-        expect(newEditorHandler).toHaveBeenCalledWith editor
 
     describe "when not passed a path", ->
-      it "returns a new edit session and emits 'buffer-created' and 'editor-created' events", ->
+      it "returns a new edit session and emits 'buffer-created'", ->
         editor = atom.project.openSync()
         expect(editor.buffer.getPath()).toBeUndefined()
         expect(newBufferHandler).toHaveBeenCalledWith(editor.buffer)
-        expect(newEditorHandler).toHaveBeenCalledWith editor
 
   describe ".open(path)", ->
-    [absolutePath, newBufferHandler, newEditorHandler] = []
+    [absolutePath, newBufferHandler] = []
 
     beforeEach ->
       absolutePath = require.resolve('./fixtures/dir/a')
       newBufferHandler = jasmine.createSpy('newBufferHandler')
       atom.project.on 'buffer-created', newBufferHandler
-      newEditorHandler = jasmine.createSpy('newEditorHandler')
-      atom.project.on 'editor-created', newEditorHandler
 
     describe "when given an absolute path that isn't currently open", ->
-      it "returns a new edit session for the given path and emits 'buffer-created' and 'editor-created' events", ->
+      it "returns a new edit session for the given path and emits 'buffer-created'", ->
         editor = null
         waitsForPromise ->
           atom.project.open(absolutePath).then (o) -> editor = o
@@ -130,10 +92,9 @@ describe "Project", ->
         runs ->
           expect(editor.buffer.getPath()).toBe absolutePath
           expect(newBufferHandler).toHaveBeenCalledWith editor.buffer
-          expect(newEditorHandler).toHaveBeenCalledWith editor
 
     describe "when given a relative path that isn't currently opened", ->
-      it "returns a new edit session for the given path (relative to the project root) and emits 'buffer-created' and 'editor-created' events", ->
+      it "returns a new edit session for the given path (relative to the project root) and emits 'buffer-created'", ->
         editor = null
         waitsForPromise ->
           atom.project.open(absolutePath).then (o) -> editor = o
@@ -141,10 +102,9 @@ describe "Project", ->
         runs ->
           expect(editor.buffer.getPath()).toBe absolutePath
           expect(newBufferHandler).toHaveBeenCalledWith editor.buffer
-          expect(newEditorHandler).toHaveBeenCalledWith editor
 
     describe "when passed the path to a buffer that is currently opened", ->
-      it "returns a new edit session containing currently opened buffer and emits a 'editor-created' event", ->
+      it "returns a new edit session containing currently opened buffer", ->
         editor = null
         waitsForPromise ->
           atom.project.open(absolutePath).then (o) -> editor = o
@@ -154,10 +114,9 @@ describe "Project", ->
           expect(atom.project.openSync(absolutePath).buffer).toBe editor.buffer
           expect(atom.project.openSync('a').buffer).toBe editor.buffer
           expect(newBufferHandler).not.toHaveBeenCalled()
-          expect(newEditorHandler).toHaveBeenCalledWith editor
 
     describe "when not passed a path", ->
-      it "returns a new edit session and emits 'buffer-created' and 'editor-created' events", ->
+      it "returns a new edit session and emits 'buffer-created'", ->
         editor = null
         waitsForPromise ->
           atom.project.open().then (o) -> editor = o
@@ -165,7 +124,6 @@ describe "Project", ->
         runs ->
           expect(editor.buffer.getPath()).toBeUndefined()
           expect(newBufferHandler).toHaveBeenCalledWith(editor.buffer)
-          expect(newEditorHandler).toHaveBeenCalledWith editor
 
     it "returns number of read bytes as progress indicator", ->
       filePath = atom.project.resolve 'a'
@@ -312,7 +270,7 @@ describe "Project", ->
 
       it "does NOT save when modified", ->
         editor = atom.project.openSync('sample.js')
-        editor.buffer.change([[0,0],[0,0]], 'omg')
+        editor.buffer.setTextInRange([[0,0],[0,0]], 'omg')
         expect(editor.isModified()).toBeTruthy()
 
         results = []

spec/select-list-view-spec.coffee

@@ -43,6 +43,15 @@ describe "SelectListView", ->
       expect(list.find('li:eq(0)')).toHaveClass 'A'
       expect(selectList.getSelectedItem()).toBe items[0]
 
+    it "allows raw HTML to be returned", ->
+      selectList.viewForItem = (item) ->
+        "<li>#{item}</li>"
+
+      selectList.setItems(['Bermuda', 'Bahama'])
+
+      expect(list.find('li:eq(0)')).toHaveText 'Bermuda'
+      expect(selectList.getSelectedItem()).toBe 'Bermuda'
+
   describe "when the text of the mini editor changes", ->
     beforeEach ->
       selectList.attachToDom()

spec/spec-bootstrap.coffee

@@ -1,6 +1,8 @@
 # Start the crash reporter before anything else.
 require('crash-reporter').start(productName: 'Atom', companyName: 'GitHub')
 
+path = require 'path'
+
 try
   require '../src/window'
   Atom = require '../src/atom'
@@ -12,6 +14,12 @@ try
 
   {runSpecSuite} = require './jasmine-helper'
 
+  # Add 'src/exports' to module search path.
+  exportsPath = path.resolve(atom.getLoadSettings().resourcePath, 'exports')
+  require('module').globalPaths.push(exportsPath)
+  # Still set NODE_PATH since tasks may need it.
+  process.env.NODE_PATH = exportsPath
+
   document.title = "Spec Suite"
   runSpecSuite './spec-suite', atom.getLoadSettings().logFile
 catch error

spec/spec-helper.coffee

@@ -6,8 +6,8 @@ require '../vendor/jasmine-jquery'
 path = require 'path'
 _ = require 'underscore-plus'
 fs = require 'fs-plus'
-{$, WorkspaceView} = require 'atom'
-Keymap = require '../src/keymap'
+KeymapManager = require '../src/keymap-extensions'
+{$, WorkspaceView, Workspace} = require 'atom'
 Config = require '../src/config'
 {Point} = require 'text-buffer'
 Project = require '../src/project'
@@ -22,8 +22,8 @@ atom.themes.requireStylesheet '../static/jasmine'
 
 fixturePackagesPath = path.resolve(__dirname, './fixtures/packages')
 atom.packages.packageDirPaths.unshift(fixturePackagesPath)
-atom.keymap.loadBundledKeymaps()
-keyBindingsToRestore = atom.keymap.getKeyBindings()
+atom.keymaps.loadBundledKeymaps()
+keyBindingsToRestore = atom.keymaps.getKeyBindings()
 
 $(window).on 'core:close', -> window.close()
 $(window).on 'unload', ->
@@ -50,7 +50,8 @@ beforeEach ->
   $.fx.off = true
   projectPath = specProjectPath ? path.join(@specDirectory, 'fixtures')
   atom.project = new Project(path: projectPath)
-  atom.keymap.keyBindings = _.clone(keyBindingsToRestore)
+  atom.workspace = new Workspace()
+  atom.keymaps.keyBindings = _.clone(keyBindingsToRestore)
 
   window.resetTimeouts()
   atom.packages.packageStates = {}
@@ -83,6 +84,7 @@ beforeEach ->
   config.set "editor.autoIndent", false
   config.set "core.disabledPackages", ["package-that-throws-an-exception",
     "package-with-broken-package-json", "package-with-broken-keymap"]
+  config.set "core.useReactEditor", false
   config.save.reset()
   atom.config = config
 
@@ -112,7 +114,7 @@ afterEach ->
   atom.workspaceView = null
   delete atom.state.workspace
 
-  atom.project?.destroy?()
+  atom.project?.destroy()
   atom.project = null
 
   delete atom.state.packageStates
@@ -180,7 +182,15 @@ window.keyIdentifierForKey = (key) ->
     "U+00" + charCode.toString(16)
 
 window.keydownEvent = (key, properties={}) ->
-  properties = $.extend({originalEvent: { keyIdentifier: keyIdentifierForKey(key) }}, properties)
+  originalEventProperties = {}
+  originalEventProperties.ctrl = properties.ctrlKey
+  originalEventProperties.alt = properties.altKey
+  originalEventProperties.shift = properties.shiftKey
+  originalEventProperties.cmd = properties.metaKey
+  originalEventProperties.target = properties.target?[0] ? properties.target
+  originalEventProperties.which = properties.which
+  originalEvent = KeymapManager.keydownEvent(key, originalEventProperties)
+  properties = $.extend({originalEvent}, properties)
   $.Event("keydown", properties)
 
 window.mouseEvent = (type, properties) ->
@@ -234,6 +244,15 @@ window.fakeSetTimeout = (callback, ms) ->
 window.fakeClearTimeout = (idToClear) ->
   window.timeouts = window.timeouts.filter ([id]) -> id != idToClear
 
+window.fakeSetInterval = (callback, ms) ->
+  action = ->
+    callback()
+    window.fakeSetTimeout(action, ms)
+  window.fakeSetTimeout(action, ms)
+
+window.fakeClearInterval = (idToClear) ->
+  window.fakeClearTimeout(idToClear)
+
 window.advanceClock = (delta=1) ->
   window.now += delta
   callbacks = []
@@ -270,7 +289,7 @@ $.fn.resultOfTrigger = (type) ->
   event.result
 
 $.fn.enableKeymap = ->
-  @on 'keydown', (e) => atom.keymap.handleKeyEvent(e)
+  @on 'keydown', (e) => atom.keymaps.handleKeyEvent(e)
 
 $.fn.attachToDom = ->
   @appendTo($('#jasmine-content'))

spec/spec-suite.coffee

@@ -5,7 +5,7 @@ path = require 'path'
 require './spec-helper'
 
 requireSpecs = (specDirectory, specType) ->
-  for specFilePath in fs.listTreeSync(specDirectory) when /-spec\.coffee$/.test specFilePath
+  for specFilePath in fs.listTreeSync(specDirectory) when /-spec\.(coffee|js)$/.test specFilePath
     require specFilePath
 
     # Set spec directory on spec for setting up the project in spec-helper
@@ -26,6 +26,7 @@ setSpecDirectory = (specDirectory) ->
 
 runAllSpecs = ->
   {resourcePath} = atom.getLoadSettings()
+
   # Only run core specs when resource path is the Atom repository
   if Git.exists(resourcePath)
     requireSpecs(path.join(resourcePath, 'spec'))

spec/theme-manager-spec.coffee

@@ -36,6 +36,22 @@ describe "ThemeManager", ->
         themes = themeManager.getActiveThemes()
         expect(themes).toHaveLength(names.length)
 
+  describe "when the core.themes config value contains invalid entry", ->
+    it "ignores theme", ->
+      atom.config.set 'core.themes', [
+        'atom-light-ui'
+        null
+        undefined
+        ''
+        false
+        4
+        {}
+        []
+        'atom-dark-ui'
+      ]
+
+      expect(themeManager.getEnabledThemeNames()).toEqual ['atom-dark-ui', 'atom-light-ui']
+
   describe "getImportPaths()", ->
     it "returns the theme directories before the themes are loaded", ->
       atom.config.set('core.themes', ['theme-with-index-less', 'atom-dark-ui', 'atom-light-ui'])
@@ -170,8 +186,11 @@ describe "ThemeManager", ->
       expect($(document.body).css('font-weight')).not.toBe("bold")
       themeManager.requireStylesheet(cssPath)
       expect($(document.body).css('font-weight')).toBe("bold")
+
+      themeManager.on 'stylesheets-changed', stylesheetsChangedHandler = jasmine.createSpy("stylesheetsChangedHandler")
       themeManager.removeStylesheet(cssPath)
       expect($(document.body).css('font-weight')).not.toBe("bold")
+      expect(stylesheetsChangedHandler).toHaveBeenCalled()
 
   describe "base stylesheet loading", ->
     beforeEach ->
@@ -204,12 +223,15 @@ describe "ThemeManager", ->
       fs.writeFileSync(userStylesheetPath, 'body {border-style: dotted !important;}')
 
       spyOn(themeManager, 'getUserStylesheetPath').andReturn userStylesheetPath
+      themeManager.on 'stylesheets-changed', stylesheetsChangedHandler = jasmine.createSpy("stylesheetsChangedHandler")
 
       waitsForPromise ->
         themeManager.activateThemes()
 
       runs ->
         expect($(document.body).css('border-style')).toBe 'dotted'
+        expect(stylesheetsChangedHandler).toHaveBeenCalled()
+        stylesheetsChangedHandler.reset()
         spyOn(themeManager, 'loadUserStylesheet').andCallThrough()
         fs.writeFileSync(userStylesheetPath, 'body {border-style: dashed}')
 
@@ -218,6 +240,8 @@ describe "ThemeManager", ->
 
       runs ->
         expect($(document.body).css('border-style')).toBe 'dashed'
+        expect(stylesheetsChangedHandler).toHaveBeenCalled()
+        stylesheetsChangedHandler.reset()
         fs.removeSync(userStylesheetPath)
 
       waitsFor ->
@@ -225,6 +249,7 @@ describe "ThemeManager", ->
 
       runs ->
         expect($(document.body).css('border-style')).toBe 'none'
+        expect(stylesheetsChangedHandler).toHaveBeenCalled()
 
   describe "when a non-existent theme is present in the config", ->
     it "logs a warning but does not throw an exception (regression)", ->

spec/tokenized-buffer-spec.coffee

@@ -119,7 +119,7 @@ describe "TokenizedBuffer", ->
 
       describe "when there is a buffer change surrounding an invalid row", ->
         it "pushes the invalid row to the end of the change", ->
-          buffer.change([[4, 0], [6, 0]], "\n\n\n")
+          buffer.setTextInRange([[4, 0], [6, 0]], "\n\n\n")
           changeHandler.reset()
 
           expect(tokenizedBuffer.firstInvalidRow()).toBe 8
@@ -128,7 +128,7 @@ describe "TokenizedBuffer", ->
       describe "when there is a buffer change inside an invalid region", ->
         it "does not attempt to tokenize the lines in the change, and preserves the existing invalid row", ->
           expect(tokenizedBuffer.firstInvalidRow()).toBe 5
-          buffer.change([[6, 0], [7, 0]], "\n\n\n")
+          buffer.setTextInRange([[6, 0], [7, 0]], "\n\n\n")
 
           expect(tokenizedBuffer.lineForScreenRow(6).ruleStack?).toBeFalsy()
           expect(tokenizedBuffer.lineForScreenRow(7).ruleStack?).toBeFalsy()
@@ -143,7 +143,7 @@ describe "TokenizedBuffer", ->
       describe "when there is a buffer change that is smaller than the chunk size", ->
         describe "when lines are updated, but none are added or removed", ->
           it "updates tokens to reflect the change", ->
-            buffer.change([[0, 0], [2, 0]], "foo()\n7\n")
+            buffer.setTextInRange([[0, 0], [2, 0]], "foo()\n7\n")
 
             expect(tokenizedBuffer.lineForScreenRow(0).tokens[1]).toEqual(value: '(', scopes: ['source.js', 'meta.brace.round.js'])
             expect(tokenizedBuffer.lineForScreenRow(1).tokens[0]).toEqual(value: '7', scopes: ['source.js', 'constant.numeric.js'])
@@ -185,7 +185,7 @@ describe "TokenizedBuffer", ->
 
         describe "when lines are both updated and removed", ->
           it "updates tokens to reflect the change", ->
-            buffer.change([[1, 0], [3, 0]], "foo()")
+            buffer.setTextInRange([[1, 0], [3, 0]], "foo()")
 
             # previous line 0 remains
             expect(tokenizedBuffer.lineForScreenRow(0).tokens[0]).toEqual(value: 'var', scopes: ['source.js', 'storage.modifier.js'])
@@ -209,7 +209,7 @@ describe "TokenizedBuffer", ->
             buffer.insert([5, 30], '/* */')
             changeHandler.reset()
 
-            buffer.change([[2, 0], [3, 0]], '/*')
+            buffer.setTextInRange([[2, 0], [3, 0]], '/*')
             expect(tokenizedBuffer.lineForScreenRow(2).tokens[0].scopes).toEqual ['source.js', 'comment.block.js', 'punctuation.definition.comment.js']
             expect(tokenizedBuffer.lineForScreenRow(3).tokens[0].scopes).toEqual ['source.js']
             expect(changeHandler).toHaveBeenCalled()
@@ -228,7 +228,7 @@ describe "TokenizedBuffer", ->
 
         describe "when lines are both updated and inserted", ->
           it "updates tokens to reflect the change", ->
-            buffer.change([[1, 0], [2, 0]], "foo()\nbar()\nbaz()\nquux()")
+            buffer.setTextInRange([[1, 0], [2, 0]], "foo()\nbar()\nbaz()\nquux()")
 
             # previous line 0 remains
             expect(tokenizedBuffer.lineForScreenRow(0).tokens[0]).toEqual( value: 'var', scopes: ['source.js', 'storage.modifier.js'])
@@ -452,3 +452,88 @@ describe "TokenizedBuffer", ->
       expect(tokenizedBuffer.tokenForPosition([0,0]).value).toBe '  '
       atom.config.set('editor.tabLength', 6)
       expect(tokenizedBuffer.tokenForPosition([0,0]).value).toBe '      '
+
+    it "does not allow the tab length to be less than 1", ->
+      buffer = atom.project.bufferForPathSync('sample.js')
+      buffer.setText('\ttest')
+      tokenizedBuffer = new TokenizedBuffer({buffer})
+      fullyTokenize(tokenizedBuffer)
+      expect(tokenizedBuffer.tokenForPosition([0,0]).value).toBe '  '
+      atom.config.set('editor.tabLength', 1)
+      expect(tokenizedBuffer.tokenForPosition([0,0]).value).toBe ' '
+      atom.config.set('editor.tabLength', 0)
+      expect(tokenizedBuffer.tokenForPosition([0,0]).value).toBe '  '
+
+  describe "leading and trailing whitespace", ->
+    beforeEach ->
+      buffer = atom.project.bufferForPathSync('sample.js')
+      tokenizedBuffer = new TokenizedBuffer({buffer})
+      fullyTokenize(tokenizedBuffer)
+
+    it "sets ::hasLeadingWhitespace to true on tokens that have leading whitespace", ->
+      expect(tokenizedBuffer.lineForScreenRow(0).tokens[0].hasLeadingWhitespace).toBe false
+      expect(tokenizedBuffer.lineForScreenRow(1).tokens[0].hasLeadingWhitespace).toBe true
+      expect(tokenizedBuffer.lineForScreenRow(1).tokens[1].hasLeadingWhitespace).toBe false
+      expect(tokenizedBuffer.lineForScreenRow(2).tokens[0].hasLeadingWhitespace).toBe true
+      expect(tokenizedBuffer.lineForScreenRow(2).tokens[1].hasLeadingWhitespace).toBe true
+      expect(tokenizedBuffer.lineForScreenRow(2).tokens[2].hasLeadingWhitespace).toBe false
+
+      # The 4th token *has* leading whitespace, but isn't entirely whitespace
+      buffer.insert([5, 0], ' ')
+      expect(tokenizedBuffer.lineForScreenRow(5).tokens[3].hasLeadingWhitespace).toBe true
+      expect(tokenizedBuffer.lineForScreenRow(5).tokens[4].hasLeadingWhitespace).toBe false
+
+      # Lines that are *only* whitespace are not considered to have leading whitespace
+      buffer.insert([10, 0], '  ')
+      expect(tokenizedBuffer.lineForScreenRow(10).tokens[0].hasLeadingWhitespace).toBe false
+
+    it "sets ::hasTrailingWhitespace to true on tokens that have trailing whitespace", ->
+      buffer.insert([0, Infinity], '  ')
+      expect(tokenizedBuffer.lineForScreenRow(0).tokens[11].hasTrailingWhitespace).toBe false
+      expect(tokenizedBuffer.lineForScreenRow(0).tokens[12].hasTrailingWhitespace).toBe true
+
+      # The last token *has* trailing whitespace, but isn't entirely whitespace
+      buffer.setTextInRange([[2, 39], [2, 40]], '  ')
+      expect(tokenizedBuffer.lineForScreenRow(2).tokens[14].hasTrailingWhitespace).toBe false
+      expect(tokenizedBuffer.lineForScreenRow(2).tokens[15].hasTrailingWhitespace).toBe true
+
+      # Lines that are *only* whitespace are considered to have trailing whitespace
+      buffer.insert([10, 0], '  ')
+      expect(tokenizedBuffer.lineForScreenRow(10).tokens[0].hasTrailingWhitespace).toBe true
+
+    it "only marks trailing whitespace on the last segment of a soft-wrapped line", ->
+      buffer.insert([0, Infinity], '  ')
+      tokenizedLine = tokenizedBuffer.lineForScreenRow(0)
+      [segment1, segment2] = tokenizedLine.softWrapAt(16)
+      expect(segment1.tokens[5].value).toBe ' '
+      expect(segment1.tokens[5].hasTrailingWhitespace).toBe false
+      expect(segment2.tokens[6].value).toBe '  '
+      expect(segment2.tokens[6].hasTrailingWhitespace).toBe true
+
+  describe "indent level", ->
+    beforeEach ->
+      buffer = atom.project.bufferForPathSync('sample.js')
+      tokenizedBuffer = new TokenizedBuffer({buffer})
+      fullyTokenize(tokenizedBuffer)
+
+    describe "when the line is non-empty", ->
+      it "has an indent level based on the leading whitespace on the line", ->
+        expect(tokenizedBuffer.lineForScreenRow(0).indentLevel).toBe 0
+        expect(tokenizedBuffer.lineForScreenRow(1).indentLevel).toBe 1
+        expect(tokenizedBuffer.lineForScreenRow(2).indentLevel).toBe 2
+        buffer.insert([2, 0], ' ')
+        expect(tokenizedBuffer.lineForScreenRow(2).indentLevel).toBe 2.5
+
+    describe "when the line is empty", ->
+      it "assumes the indentation level of the first non-empty line below or above if one exists", ->
+        buffer.insert([12, 0], '    ')
+        buffer.insert([12, Infinity], '\n\n')
+        expect(tokenizedBuffer.lineForScreenRow(13).indentLevel).toBe 2
+        expect(tokenizedBuffer.lineForScreenRow(14).indentLevel).toBe 2
+
+        buffer.insert([1, Infinity], '\n\n')
+        expect(tokenizedBuffer.lineForScreenRow(2).indentLevel).toBe 2
+        expect(tokenizedBuffer.lineForScreenRow(3).indentLevel).toBe 2
+
+        buffer.setText('\n\n\n')
+        expect(tokenizedBuffer.lineForScreenRow(1).indentLevel).toBe 0

spec/tokenized-line-spec.coffee

@@ -0,0 +1,22 @@
+describe "TokenizedLine", ->
+  editor = null
+
+  beforeEach ->
+    waitsForPromise -> atom.packages.activatePackage('language-coffee-script')
+
+  describe "::getScopeTree()", ->
+    it "returns a tree whose inner nodes are scopes and whose leaf nodes are tokens in those scopes", ->
+      editor = atom.project.openSync('coffee.coffee')
+
+      ensureValidScopeTree = (scopeTree, scopes=[]) ->
+        if scopeTree.children?
+          for child in scopeTree.children
+            ensureValidScopeTree(child, scopes.concat([scopeTree.scope]))
+        else
+          expect(scopeTree).toBe tokens[tokenIndex++]
+          expect(scopes).toEqual scopeTree.scopes
+
+      tokenIndex = 0
+      tokens = editor.lineForScreenRow(1).tokens
+      scopeTree = editor.lineForScreenRow(1).getScopeTree()
+      ensureValidScopeTree(scopeTree)

spec/window-spec.coffee

@@ -102,7 +102,7 @@ describe "Window", ->
     it "unsubscribes from all buffers", ->
       atom.workspaceView.openSync('sample.js')
       buffer = atom.workspaceView.getActivePaneItem().buffer
-      pane = atom.workspaceView.getActivePane()
+      pane = atom.workspaceView.getActivePaneView()
       pane.splitRight(pane.copyActiveItem())
       expect(atom.workspaceView.find('.editor').length).toBe 2
 

spec/workspace-spec.coffee

@@ -5,7 +5,7 @@ describe "Workspace", ->
 
   beforeEach ->
     atom.project.setPath(atom.project.resolve('dir'))
-    workspace = new Workspace
+    atom.workspace = workspace = new Workspace
 
   describe "::open(uri, options)", ->
     beforeEach ->
@@ -152,6 +152,18 @@ describe "Workspace", ->
           workspace.open("bar://baz").then (item) ->
             expect(item).toEqual { bar: "bar://baz" }
 
+    it "emits an 'editor-created' event", ->
+      absolutePath = require.resolve('./fixtures/dir/a')
+      newEditorHandler = jasmine.createSpy('newEditorHandler')
+      workspace.on 'editor-created', newEditorHandler
+
+      editor = null
+      waitsForPromise ->
+        workspace.open(absolutePath).then (e) -> editor = e
+
+      runs ->
+        expect(newEditorHandler).toHaveBeenCalledWith editor
+
   describe "::openSync(uri, options)", ->
     [activePane, initialItemCount] = []
 
@@ -245,3 +257,26 @@ describe "Workspace", ->
     it "opens the license as plain-text in a buffer", ->
       waitsForPromise -> workspace.openLicense()
       runs -> expect(workspace.activePaneItem.getText()).toMatch /Copyright/
+
+  describe "when an editor is destroyed", ->
+    it "removes the editor", ->
+      editor = null
+
+      waitsForPromise ->
+        workspace.open("a").then (e) -> editor = e
+
+      runs ->
+        expect(workspace.getEditors()).toHaveLength 1
+        editor.destroy()
+        expect(workspace.getEditors()).toHaveLength 0
+
+  describe "when an editor is copied", ->
+    it "emits an 'editor-created' event", ->
+      handler = jasmine.createSpy('editorCreatedHandler')
+      workspace.on 'editor-created', handler
+
+      editor1 = workspace.openSync("a")
+      expect(handler.callCount).toBe 1
+
+      editor2 = editor1.copy()
+      expect(handler.callCount).toBe 2

spec/workspace-view-spec.coffee

@@ -2,6 +2,7 @@
 Q = require 'q'
 path = require 'path'
 temp = require 'temp'
+EditorView = require '../src/editor-view'
 PaneView = require '../src/pane-view'
 Workspace = require '../src/workspace'
 
@@ -36,18 +37,18 @@ describe "WorkspaceView", ->
         editorView1 = atom.workspaceView.getActiveView()
         buffer = editorView1.getEditor().getBuffer()
         editorView1.splitRight()
-        expect(atom.workspaceView.getActivePane()).toBe atom.workspaceView.getPaneViews()[1]
+        expect(atom.workspaceView.getActivePaneView()).toBe atom.workspaceView.getPaneViews()[1]
 
         simulateReload()
 
         expect(atom.workspaceView.getEditorViews().length).toBe 2
-        expect(atom.workspaceView.getActivePane()).toBe atom.workspaceView.getPaneViews()[1]
+        expect(atom.workspaceView.getActivePaneView()).toBe atom.workspaceView.getPaneViews()[1]
         expect(atom.workspaceView.title).toBe "untitled - #{atom.project.getPath()}"
 
     describe "when there are open editors", ->
       it "constructs the view with the same panes", ->
         atom.workspaceView.attachToDom()
-        pane1 = atom.workspaceView.getActivePane()
+        pane1 = atom.workspaceView.getActivePaneView()
         pane2 = pane1.splitRight()
         pane3 = pane2.splitRight()
         pane4 = pane2.splitDown()
@@ -89,7 +90,7 @@ describe "WorkspaceView", ->
 
     describe "where there are no open editors", ->
       it "constructs the view with no open editors", ->
-        atom.workspaceView.getActivePane().remove()
+        atom.workspaceView.getActivePaneView().remove()
         expect(atom.workspaceView.getEditorViews().length).toBe 0
         simulateReload()
         expect(atom.workspaceView.getEditorViews().length).toBe 0
@@ -99,7 +100,7 @@ describe "WorkspaceView", ->
       atom.workspaceView.attachToDom()
 
     it "hands off focus to the active pane", ->
-      activePane = atom.workspaceView.getActivePane()
+      activePane = atom.workspaceView.getActivePaneView()
       $('body').focus()
       expect(activePane.hasFocus()).toBe false
       atom.workspaceView.focus()
@@ -111,7 +112,7 @@ describe "WorkspaceView", ->
       commandHandler = jasmine.createSpy('commandHandler')
       atom.workspaceView.on('foo-command', commandHandler)
 
-      atom.keymap.bindKeys('name', '*', 'x': 'foo-command')
+      atom.keymaps.bindKeys('name', '*', 'x': 'foo-command')
 
     describe "when a keydown event is triggered in the WorkspaceView", ->
       it "triggers matching keybindings for that event", ->
@@ -132,30 +133,30 @@ describe "WorkspaceView", ->
 
       describe "when there is an active pane item", ->
         it "sets the title to the pane item's title plus the project path", ->
-          item = atom.workspaceView.getActivePaneItem()
+          item = atom.workspace.getActivePaneItem()
           expect(atom.workspaceView.title).toBe "#{item.getTitle()} - #{atom.project.getPath()}"
 
       describe "when the title of the active pane item changes", ->
         it "updates the window title based on the item's new title", ->
-          editor = atom.workspaceView.getActivePaneItem()
+          editor = atom.workspace.getActivePaneItem()
           editor.buffer.setPath(path.join(temp.dir, 'hi'))
           expect(atom.workspaceView.title).toBe "#{editor.getTitle()} - #{atom.project.getPath()}"
 
       describe "when the active pane's item changes", ->
         it "updates the title to the new item's title plus the project path", ->
-          atom.workspaceView.getActivePane().showNextItem()
-          item = atom.workspaceView.getActivePaneItem()
+          atom.workspaceView.getActivePaneView().showNextItem()
+          item = atom.workspace.getActivePaneItem()
           expect(atom.workspaceView.title).toBe "#{item.getTitle()} - #{atom.project.getPath()}"
 
       describe "when the last pane item is removed", ->
         it "updates the title to contain the project's path", ->
-          atom.workspaceView.getActivePane().remove()
-          expect(atom.workspaceView.getActivePaneItem()).toBeUndefined()
+          atom.workspaceView.getActivePaneView().remove()
+          expect(atom.workspace.getActivePaneItem()).toBeUndefined()
           expect(atom.workspaceView.title).toBe atom.project.getPath()
 
       describe "when an inactive pane's item changes", ->
         it "does not update the title", ->
-          pane = atom.workspaceView.getActivePane()
+          pane = atom.workspaceView.getActivePaneView()
           pane.splitRight()
           initialTitle = atom.workspaceView.title
           pane.showNextItem()
@@ -164,7 +165,7 @@ describe "WorkspaceView", ->
     describe "when the root view is deserialized", ->
       it "updates the title to contain the project's path", ->
         workspaceView2 = new WorkspaceView(atom.workspace.testSerialization())
-        item = atom.workspaceView.getActivePaneItem()
+        item = atom.workspace.getActivePaneItem()
         expect(workspaceView2.title).toBe "#{item.getTitle()} - #{atom.project.getPath()}"
         workspaceView2.remove()
 
@@ -222,6 +223,14 @@ describe "WorkspaceView", ->
       expect(count).toBe 1
       expect(callbackEditor).toBe atom.workspaceView.getActiveView()
 
+    it "does not invoke the callback for mini editors", ->
+      editorViewCreatedHandler = jasmine.createSpy('editorViewCreatedHandler')
+      atom.workspaceView.eachEditorView(editorViewCreatedHandler)
+      editorViewCreatedHandler.reset()
+      miniEditor = new EditorView(mini: true)
+      atom.workspaceView.append(miniEditor)
+      expect(editorViewCreatedHandler).not.toHaveBeenCalled()
+
     it "returns a subscription that can be disabled", ->
       count = 0
       callback = (editor) -> count++
@@ -238,9 +247,9 @@ describe "WorkspaceView", ->
     it "closes the active pane item until all that remains is a single empty pane", ->
       atom.config.set('core.destroyEmptyPanes', true)
       atom.project.openSync('../sample.txt')
-      expect(atom.workspaceView.getActivePane().getItems()).toHaveLength 1
+      expect(atom.workspaceView.getActivePaneView().getItems()).toHaveLength 1
       atom.workspaceView.trigger('core:close')
-      expect(atom.workspaceView.getActivePane().getItems()).toHaveLength 0
+      expect(atom.workspaceView.getActivePaneView().getItems()).toHaveLength 0
 
   describe "the scrollbar visibility class", ->
     it "has a class based on the style of the scrollbar", ->

src/atom.coffee

@@ -1,6 +1,5 @@
 crypto = require 'crypto'
 ipc = require 'ipc'
-keytar = require 'keytar'
 os = require 'os'
 path = require 'path'
 remote = require 'remote'
@@ -8,6 +7,7 @@ screen = require 'screen'
 shell = require 'shell'
 
 _ = require 'underscore-plus'
+{deprecated} = require 'grim'
 {Model} = require 'theorist'
 fs = require 'fs-plus'
 
@@ -24,7 +24,7 @@ WindowEventHandler = require './window-event-handler'
 #  * `atom.config`        - A {Config} instance
 #  * `atom.contextMenu`   - A {ContextMenuManager} instance
 #  * `atom.deserializers` - A {DeserializerManager} instance
-#  * `atom.keymap`        - A {Keymap} instance
+#  * `atom.keymaps`        - A {Keymap} instance
 #  * `atom.menu`          - A {MenuManager} instance
 #  * `atom.packages`      - A {PackageManager} instance
 #  * `atom.project`       - A {Project} instance
@@ -34,6 +34,8 @@ WindowEventHandler = require './window-event-handler'
 #  * `atom.workspaceView` - A {WorkspaceView} instance
 module.exports =
 class Atom extends Model
+  @version: 1  # Increment this when the serialization format changes
+
   # Public: Load or create the Atom environment in the given mode.
   #
   # - mode: Pass 'editor' or 'spec' depending on the kind of environment you
@@ -41,11 +43,11 @@ class Atom extends Model
   #
   # Returns an Atom instance, fully initialized
   @loadOrCreate: (mode) ->
-    @deserialize(@loadState(mode)) ? new this({mode, version: @getVersion()})
+    @deserialize(@loadState(mode)) ? new this({mode, @version})
 
   # Deserializes the Atom environment from a state object
   @deserialize: (state) ->
-    new this(state) if state?.version is @getVersion()
+    new this(state) if state?.version is @version
 
   # Loads and returns the serialized state corresponding to this window
   # if it exists; otherwise returns undefined.
@@ -110,7 +112,7 @@ class Atom extends Model
 
   # Get the version of the Atom application.
   @getVersion: ->
-    @version ?= @getLoadSettings().appVersion
+    @appVersion ?= @getLoadSettings().appVersion
 
   # Determine whether the current version is an official release.
   @isReleasedVersion: ->
@@ -130,6 +132,7 @@ class Atom extends Model
   initialize: ->
     window.onerror = =>
       @openDevTools()
+      @executeJavaScriptInDevTools('InspectorFrontendAPI.showConsole()')
       @emit 'uncaught-error', arguments...
 
     @unsubscribe()
@@ -138,7 +141,7 @@ class Atom extends Model
     @loadTime = null
 
     Config = require './config'
-    Keymap = require './keymap'
+    KeymapManager = require './keymap-extensions'
     PackageManager = require './package-manager'
     Clipboard = require './clipboard'
     Syntax = require './syntax'
@@ -148,8 +151,18 @@ class Atom extends Model
     {devMode, resourcePath} = @getLoadSettings()
     configDirPath = @getConfigDirPath()
 
+    # Add 'src/exports' to module search path.
+    exportsPath = path.resolve(resourcePath, 'exports')
+    require('module').globalPaths.push(exportsPath)
+    # Still set NODE_PATH since tasks may need it.
+    process.env.NODE_PATH = exportsPath
+
+    # Make react.js faster
+    process.env.NODE_ENV ?= 'production'
+
     @config = new Config({configDirPath, resourcePath})
-    @keymap = new Keymap({configDirPath, resourcePath})
+    @keymaps = new KeymapManager({configDirPath, resourcePath})
+    @keymap = @keymaps # Deprecated
     @packages = new PackageManager({devMode, configDirPath, resourcePath})
     @themes = new ThemeManager({packageManager: @packages, configDirPath, resourcePath})
     @contextMenu = new ContextMenuManager(devMode)
@@ -171,9 +184,11 @@ class Atom extends Model
 
   # Deprecated: Callers should be converted to use atom.deserializers
   registerRepresentationClass: ->
+    deprecated("Callers should be converted to use atom.deserializers")
 
   # Deprecated: Callers should be converted to use atom.deserializers
   registerRepresentationClasses: ->
+    deprecated("Callers should be converted to use atom.deserializers")
 
   setBodyPlatformClass: ->
     document.body.classList.add("platform-#{process.platform}")
@@ -210,12 +225,26 @@ class Atom extends Model
     else
       @center()
 
+  storeDefaultWindowDimensions: ->
+    dimensions = JSON.stringify(atom.getWindowDimensions())
+    localStorage.setItem("defaultWindowDimensions", dimensions)
+
+  getDefaultWindowDimensions: ->
+    {windowDimensions} = @getLoadSettings()
+    return windowDimensions if windowDimensions?
+
+    dimensions = null
+    try
+      dimensions = JSON.parse(localStorage.getItem("defaultWindowDimensions"))
+    catch error
+      console.warn "Error parsing default window dimensions", error
+      localStorage.removeItem("defaultWindowDimensions")
+
+    {width, height} = screen.getPrimaryDisplay().workAreaSize
+    dimensions ? {x: 0, y: 0, width: Math.min(1024, width), height: height}
+
   restoreWindowDimensions: ->
-    workAreaSize = screen.getPrimaryDisplay().workAreaSize
-    windowDimensions = @state.windowDimensions ? {}
-    {initialSize} = @getLoadSettings()
-    windowDimensions.height ?= initialSize?.height ? workAreaSize.height
-    windowDimensions.width ?= initialSize?.width ? Math.min(workAreaSize.width, 1024)
+    windowDimensions = @state.windowDimensions ? @getDefaultWindowDimensions()
     @setWindowDimensions(windowDimensions)
 
   storeWindowDimensions: ->
@@ -236,6 +265,7 @@ class Atom extends Model
     WorkspaceView = require './workspace-view'
     @workspace = Workspace.deserialize(@state.workspace) ? new Workspace
     @workspaceView = new WorkspaceView(@workspace)
+    @keymaps.defaultTarget = @workspaceView[0]
     $(@workspaceViewParentSelector).append(@workspaceView)
 
   deserializePackageStates: ->
@@ -260,12 +290,12 @@ class Atom extends Model
     @config.load()
     @config.setDefaults('core', require('./workspace-view').configDefaults)
     @config.setDefaults('editor', require('./editor-view').configDefaults)
-    @keymap.loadBundledKeymaps()
+    @keymaps.loadBundledKeymaps()
     @themes.loadBaseStylesheets()
     @packages.loadPackages()
     @deserializeEditorWindow()
     @packages.activate()
-    @keymap.loadUserKeymap()
+    @keymaps.loadUserKeymap()
     @requireUserInitScript()
     @menu.update()
 
@@ -289,7 +319,7 @@ class Atom extends Model
     @workspaceView = null
     @project.destroy()
     @windowEventHandler?.unsubscribe()
-    @keymap.destroy()
+    @keymaps.destroy()
     @windowState = null
 
   loadThemes: ->
@@ -370,6 +400,10 @@ class Atom extends Model
   toggleDevTools: ->
     ipc.sendChannel('call-window-method', 'toggleDevTools')
 
+  # Public: Execute code in dev tools.
+  executeJavaScriptInDevTools: (code) ->
+    ipc.sendChannel('call-window-method', 'executeJavaScriptInDevTools', code)
+
   # Public: Reload the current window.
   reload: ->
     ipc.sendChannel('call-window-method', 'restart')
@@ -422,7 +456,7 @@ class Atom extends Model
   exit: (status) ->
     app = remote.require('app')
     app.emit('will-exit')
-    app.exit(status)
+    remote.process.exit(status)
 
   # Public: Is the current window in development mode?
   inDevMode: ->
@@ -452,17 +486,6 @@ class Atom extends Model
   isReleasedVersion: ->
     @constructor.isReleasedVersion()
 
-  getGitHubAuthTokenName: ->
-    'Atom GitHub API Token'
-
-  # Public: Set the the github token in the keychain
-  setGitHubAuthToken: (token) ->
-    keytar.replacePassword(@getGitHubAuthTokenName(), 'github', token)
-
-  # Public: Get the github token from the keychain
-  getGitHubAuthToken: ->
-    keytar.getPassword(@getGitHubAuthTokenName(), 'github')
-
   # Public: Get the directory path to Atom's configuration area.
   #
   # Returns the absolute path to ~/.atom

src/browser/application-menu.coffee

@@ -9,30 +9,28 @@ _ = require 'underscore-plus'
 # and maintain the state of all menu items.
 module.exports =
 class ApplicationMenu
-  version: null
-  menu: null
-
   constructor: (@version) ->
     @menu = Menu.buildFromTemplate @getDefaultTemplate()
     Menu.setApplicationMenu @menu
+    global.atomApplication.autoUpdateManager.on 'state-changed', (state) =>
+      @showUpdateMenuItem(state)
 
   # Public: Updates the entire menu with the given keybindings.
   #
-  # * template:
-  #   The Object which describes the menu to display.
-  # * keystrokesByCommand:
-  #   An Object where the keys are commands and the values are Arrays containing
-  #   the keystroke.
+  # template - The Object which describes the menu to display.
+  # keystrokesByCommand - An Object where the keys are commands and the values
+  #                       are Arrays containing the keystroke.
   update: (template, keystrokesByCommand) ->
     @translateTemplate(template, keystrokesByCommand)
     @substituteVersion(template)
     @menu = Menu.buildFromTemplate(template)
     Menu.setApplicationMenu(@menu)
 
+    @showUpdateMenuItem(global.atomApplication.autoUpdateManager.getState())
+
   # Flattens the given menu and submenu items into an single Array.
   #
-  # * menu:
-  #   A complete menu configuration object for atom-shell's menu API.
+  # menu - A complete menu configuration object for atom-shell's menu API.
   #
   # Returns an Array of native menu items.
   flattenMenuItems: (menu) ->
@@ -44,8 +42,7 @@ class ApplicationMenu
 
   # Flattens the given menu template into an single Array.
   #
-  # * template:
-  #   An object describing the menu item.
+  # template - An object describing the menu item.
   #
   # Returns an Array of native menu items.
   flattenMenuTemplate: (template) ->
@@ -57,44 +54,36 @@ class ApplicationMenu
 
   # Public: Used to make all window related menu items are active.
   #
-  # * enable:
-  #   If true enables all window specific items, if false disables all  window
-  #   specific items.
+  # enable - If true enables all window specific items, if false disables all
+  #          window specific items.
   enableWindowSpecificItems: (enable) ->
     for item in @flattenMenuItems(@menu)
       item.enabled = enable if item.metadata?['windowSpecific']
 
   # Replaces VERSION with the current version.
   substituteVersion: (template) ->
-    if (item = _.find(@flattenMenuTemplate(template), (i) -> i.label == 'VERSION'))
+    if (item = _.find(@flattenMenuTemplate(template), ({label}) -> label == 'VERSION'))
       item.label = "Version #{@version}"
 
-  # Toggles Install Update Item
-  showInstallUpdateItem: (visible=true) ->
-    if visible
-      @showDownloadingUpdateItem(false)
-      @showCheckForUpdateItem(false)
+  # Sets the proper visible state the update menu items
+  showUpdateMenuItem: (state) ->
+    checkForUpdateItem = _.find(@flattenMenuItems(@menu), ({label}) -> label == 'Check for Update')
+    downloadingUpdateItem = _.find(@flattenMenuItems(@menu), ({label}) -> label == 'Downloading Update')
+    installUpdateItem = _.find(@flattenMenuItems(@menu), ({label}) -> label == 'Restart and Install Update')
 
-    if (item = _.find(@flattenMenuItems(@menu), (i) -> i.label == 'Restart and Install Update'))
-      item.visible = visible
+    return unless checkForUpdateItem? and downloadingUpdateItem? and installUpdateItem?
 
-  # Toggles Downloading Update Item
-  showDownloadingUpdateItem: (visible=true) ->
-    if visible
-      @showInstallUpdateItem(false)
-      @showCheckForUpdateItem(false)
+    checkForUpdateItem.visible = false
+    downloadingUpdateItem.visible = false
+    installUpdateItem.visible = false
 
-    if (item = _.find(@flattenMenuItems(@menu), (i) -> i.label == 'Downloading Update'))
-      item.visible = visible
-
-  # Toggles Check For Update Item
-  showCheckForUpdateItem: (visible=true) ->
-    if visible
-      @showDownloadingUpdateItem(false)
-      @showInstallUpdateItem(false)
-
-    if (item = _.find(@flattenMenuItems(@menu), (i) -> i.label == 'Check for Update'))
-      item.visible = visible
+    switch state
+      when 'idle', 'error', 'no-update-available'
+        checkForUpdateItem.visible = true
+      when 'checking', 'downloading'
+        downloadingUpdateItem.visible = true
+      when 'update-available'
+        installUpdateItem.visible = true
 
   # Default list of menu items.
   #
@@ -103,26 +92,28 @@ class ApplicationMenu
     [
       label: "Atom"
       submenu: [
-          { label: 'Reload', accelerator: 'Command+R', click: -> @focusedWindow()?.reload() }
-          { label: 'Close Window', accelerator: 'Command+Shift+W', click: -> @focusedWindow()?.close() }
-          { label: 'Toggle Dev Tools', accelerator: 'Command+Alt+I', click: -> @focusedWindow()?.toggleDevTools() }
+          { label: "Check for Update", metadata: {autoUpdate: true}}
+          { label: 'Reload', accelerator: 'Command+R', click: => @focusedWindow()?.reload() }
+          { label: 'Close Window', accelerator: 'Command+Shift+W', click: => @focusedWindow()?.close() }
+          { label: 'Toggle Dev Tools', accelerator: 'Command+Alt+I', click: => @focusedWindow()?.toggleDevTools() }
           { label: 'Quit', accelerator: 'Command+Q', click: -> app.quit() }
       ]
     ]
 
+  focusedWindow: ->
+    _.find global.atomApplication.windows, (atomWindow) -> atomWindow.isFocused()
+
   # Combines a menu template with the appropriate keystroke.
   #
-  # * template:
-  #   An Object conforming to atom-shell's menu api but lacking accelerator and
-  #   click properties.
-  # * keystrokesByCommand:
-  #   An Object where the keys are commands and the values are Arrays containing
-  #   the keystroke.
+  # template - An Object conforming to atom-shell's menu api but lacking
+  #            accelerator and click properties.
+  # keystrokesByCommand - An Object where the keys are commands and the values
+  #                       are Arrays containing the keystroke.
   #
   # Returns a complete menu configuration object for atom-shell's menu API.
   translateTemplate: (template, keystrokesByCommand) ->
     template.forEach (item) =>
-      item.metadata = {}
+      item.metadata ?= {}
       if item.command
         item.accelerator = @acceleratorForCommand(item.command, keystrokesByCommand)
         item.click = => global.atomApplication.sendCommand(item.command)
@@ -132,11 +123,9 @@ class ApplicationMenu
 
   # Determine the accelerator for a given command.
   #
-  # * command:
-  #   The name of the command.
-  # * keystrokesByCommand:
-  #   An Object where the keys are commands and the values are Arrays containing
-  #   the keystroke.
+  # command - The name of the command.
+  # keystrokesByCommand - An Object where the keys are commands and the values
+  #                       are Arrays containing the keystroke.
   #
   # Returns a String containing the keystroke in a format that can be interpreted
   #   by atom shell to provide nice icons where available.
@@ -147,7 +136,6 @@ class ApplicationMenu
     modifiers = firstKeystroke.split('-')
     key = modifiers.pop()
 
-    modifiers.push("Shift") if key != key.toLowerCase()
     modifiers = modifiers.map (modifier) ->
       modifier.replace(/shift/ig, "Shift")
               .replace(/cmd/ig, "Command")

src/browser/atom-application.coffee

@@ -1,9 +1,9 @@
 AtomWindow = require './atom-window'
 ApplicationMenu = require './application-menu'
 AtomProtocolHandler = require './atom-protocol-handler'
+AutoUpdateManager = require './auto-update-manager'
 BrowserWindow = require 'browser-window'
 Menu = require 'menu'
-autoUpdater = require 'auto-updater'
 app = require 'app'
 dialog = require 'dialog'
 fs = require 'fs'
@@ -66,13 +66,13 @@ class AtomApplication
     @pathsToOpen ?= []
     @windows = []
 
+    @autoUpdateManager = new AutoUpdateManager(@version)
     @applicationMenu = new ApplicationMenu(@version)
     @atomProtocolHandler = new AtomProtocolHandler(@resourcePath)
 
     @listenForArgumentsFromNewProcess()
     @setupJavaScriptArguments()
     @handleEvents()
-    @setupAutoUpdater()
 
     @openWithOptions(options)
 
@@ -96,6 +96,8 @@ class AtomApplication
   addWindow: (window) ->
     @windows.push window
     @applicationMenu?.enableWindowSpecificItems(true)
+    window.once 'window:loaded', =>
+      @autoUpdateManager.emitUpdateAvailableEvent(window)
 
   # Creates server to listen for additional atom application launches.
   #
@@ -125,68 +127,38 @@ class AtomApplication
 
   # Configures required javascript environment flags.
   setupJavaScriptArguments: ->
-    app.commandLine.appendSwitch 'js-flags', '--harmony_collections --harmony-proxies'
-
-  # Enable updates unless running from a local build of Atom.
-  setupAutoUpdater: ->
-    return if /\w{7}/.test(@version) # Only released versions should check for updates.
-
-    autoUpdater.setFeedUrl "https://atom.io/api/updates?version=#{@version}"
-
-    autoUpdater.on 'checking-for-update', =>
-      @applicationMenu.showDownloadingUpdateItem(false)
-      @applicationMenu.showInstallUpdateItem(false)
-      @applicationMenu.showCheckForUpdateItem(false)
-
-    autoUpdater.on 'update-not-available', =>
-      @applicationMenu.showCheckForUpdateItem(true)
-
-    autoUpdater.on 'update-available', =>
-      @applicationMenu.showDownloadingUpdateItem(true)
-
-    autoUpdater.on 'update-downloaded', (event, releaseNotes, releaseVersion, releaseDate, releaseURL) =>
-      atomWindow.sendCommand('window:update-available', [releaseVersion, releaseNotes]) for atomWindow in @windows
-      @applicationMenu.showInstallUpdateItem(true)
-
-    autoUpdater.on 'error', (event, message) =>
-      @applicationMenu.showCheckForUpdateItem(true)
-
-    # Check for update after Atom has fully started and the menus are created
-    setTimeout((-> autoUpdater.checkForUpdates()), 5000)
-
-  checkForUpdate: ->
-    @onUpdateNotAvailable ?= =>
-      autoUpdater.removeListener 'error', @onUpdateError
-      dialog.showMessageBox type: 'info', buttons: ['OK'], message: 'No update available.', detail: "Version #{@version} is the latest version."
-
-    @onUpdateError ?= (event, message) =>
-      autoUpdater.removeListener 'update-not-available', @onUpdateNotAvailable
-      dialog.showMessageBox type: 'warning', buttons: ['OK'], message: 'There was an error checking for updates.', detail: message
-
-    autoUpdater.once 'update-not-available', @onUpdateNotAvailable
-    autoUpdater.once 'error', @onUpdateError
-    autoUpdater.checkForUpdates()
+    app.commandLine.appendSwitch 'js-flags', '--harmony'
 
   # Registers basic application commands, non-idempotent.
   handleEvents: ->
-    @on 'application:about', -> Menu.sendActionToFirstResponder('orderFrontStandardAboutPanel:')
     @on 'application:run-all-specs', -> @runSpecs(exitWhenDone: false, resourcePath: global.devResourcePath)
     @on 'application:run-benchmarks', -> @runBenchmarks()
     @on 'application:quit', -> app.quit()
-    @on 'application:hide', -> Menu.sendActionToFirstResponder('hide:')
-    @on 'application:hide-other-applications', -> Menu.sendActionToFirstResponder('hideOtherApplications:')
-    @on 'application:unhide-all-applications', -> Menu.sendActionToFirstResponder('unhideAllApplications:')
-    @on 'application:new-window', -> @openPath(initialSize: @getFocusedWindowSize())
+    @on 'application:new-window', -> @openPath(windowDimensions: @focusedWindow()?.getDimensions())
     @on 'application:new-file', -> (@focusedWindow() ? this).openPath()
-    @on 'application:open', -> @promptForPath()
+    @on 'application:open', -> @promptForPath(type: 'all')
+    @on 'application:open-file', -> @promptForPath(type: 'file')
+    @on 'application:open-folder', -> @promptForPath(type: 'folder')
     @on 'application:open-dev', -> @promptForPath(devMode: true)
-    @on 'application:minimize', -> Menu.sendActionToFirstResponder('performMiniaturize:')
-    @on 'application:zoom', -> Menu.sendActionToFirstResponder('zoom:')
-    @on 'application:bring-all-windows-to-front', -> Menu.sendActionToFirstResponder('arrangeInFront:')
-    @on 'application:inspect', ({x,y}) -> @focusedWindow().browserWindow.inspectElement(x, y)
+    @on 'application:inspect', ({x,y, atomWindow}) ->
+      atomWindow ?= @focusedWindow()
+      atomWindow?.browserWindow.inspectElement(x, y)
+
     @on 'application:open-documentation', -> shell.openExternal('https://atom.io/docs/latest/?app')
-    @on 'application:install-update', -> autoUpdater.quitAndInstall()
-    @on 'application:check-for-update', => @checkForUpdate()
+    @on 'application:install-update', -> @autoUpdateManager.install()
+    @on 'application:check-for-update', => @autoUpdateManager.check()
+
+    if process.platform is 'darwin'
+      @on 'application:about', -> Menu.sendActionToFirstResponder('orderFrontStandardAboutPanel:')
+      @on 'application:bring-all-windows-to-front', -> Menu.sendActionToFirstResponder('arrangeInFront:')
+      @on 'application:hide', -> Menu.sendActionToFirstResponder('hide:')
+      @on 'application:hide-other-applications', -> Menu.sendActionToFirstResponder('hideOtherApplications:')
+      @on 'application:minimize', -> Menu.sendActionToFirstResponder('performMiniaturize:')
+      @on 'application:unhide-all-applications', -> Menu.sendActionToFirstResponder('unhideAllApplications:')
+      @on 'application:zoom', -> Menu.sendActionToFirstResponder('zoom:')
+    else
+      @on 'application:minimize', -> @focusedWindow()?.minimize()
+      @on 'application:zoom', -> @focusedWindow()?.maximize()
 
     @openPathOnEvent('application:show-settings', 'atom://config')
     @openPathOnEvent('application:open-your-config', 'atom://.atom/config')
@@ -196,10 +168,15 @@ class AtomApplication
     @openPathOnEvent('application:open-your-stylesheet', 'atom://.atom/stylesheet')
 
     app.on 'window-all-closed', ->
-      app.quit() if process.platform is 'win32'
+      app.quit() if process.platform in ['win32', 'linux']
 
-    app.on 'will-quit', => @deleteSocketFile()
-    app.on 'will-exit', => @deleteSocketFile()
+    app.on 'will-quit', =>
+      @killAllProcesses()
+      @deleteSocketFile()
+
+    app.on 'will-exit', =>
+      @killAllProcesses()
+      @deleteSocketFile()
 
     app.on 'open-file', (event, pathToOpen) =>
       event.preventDefault()
@@ -209,6 +186,10 @@ class AtomApplication
       event.preventDefault()
       @openUrl({urlToOpen, @devMode})
 
+    app.on 'activate-with-no-open-windows', (event) =>
+      event.preventDefault()
+      @emit('application:new-window')
+
     # A request from the associated render process to open a new render process.
     ipc.on 'open', (processId, routingId, options) =>
       if options?
@@ -240,21 +221,50 @@ class AtomApplication
   #
   # If it isn't handled globally, delegate to the currently focused window.
   #
-  # * command:
-  #   The string representing the command.
-  # * args:
-  #   The optional arguments to pass along.
+  # command - The string representing the command.
+  # args - The optional arguments to pass along.
   sendCommand: (command, args...) ->
     unless @emit(command, args...)
-      @focusedWindow()?.sendCommand(command, args...)
+      focusedWindow = @focusedWindow()
+      if focusedWindow?
+        focusedWindow.sendCommand(command, args...)
+      else
+        @sendCommandToFirstResponder(command)
+
+  # Public: Executes the given command on the given window.
+  #
+  # command - The string representing the command.
+  # atomWindow - The {AtomWindow} to send the command to.
+  # args - The optional arguments to pass along.
+  sendCommandToWindow: (command, atomWindow, args...) ->
+    unless @emit(command, args...)
+      if atomWindow?
+        atomWindow.sendCommand(command, args...)
+      else
+        @sendCommandToFirstResponder(command)
+
+  # Translates the command into OS X action and sends it to application's first
+  # responder.
+  sendCommandToFirstResponder: (command) ->
+    return false unless process.platform is 'darwin'
+
+    switch command
+      when 'core:undo' then Menu.sendActionToFirstResponder('undo:')
+      when 'core:redo' then Menu.sendActionToFirstResponder('redo:')
+      when 'core:copy' then Menu.sendActionToFirstResponder('copy:')
+      when 'core:cut' then Menu.sendActionToFirstResponder('cut:')
+      when 'core:paste' then Menu.sendActionToFirstResponder('paste:')
+      when 'core:select-all' then Menu.sendActionToFirstResponder('selectAll:')
+      else return false
+    true
 
   # Public: Open the given path in the focused window when the event is
   # triggered.
   #
   # A new window will be created if there is no currently focused window.
   #
-  # * eventName: The event to listen for.
-  # * pathToOpen: The path to open when the event is triggered.
+  # eventName - The event to listen for.
+  # pathToOpen - The path to open when the event is triggered.
   openPathOnEvent: (eventName, pathToOpen) ->
     @on eventName, ->
       if window = @focusedWindow()
@@ -271,45 +281,25 @@ class AtomApplication
   focusedWindow: ->
     _.find @windows, (atomWindow) -> atomWindow.isFocused()
 
-  # Public: Get the height and width of the focused window.
-  #
-  # Returns an object with height and width keys or null if there is no
-  # focused window.
-  getFocusedWindowSize: ->
-    if focusedWindow = @focusedWindow()
-      [width, height] = focusedWindow.getSize()
-      {width, height}
-    else
-      null
-
   # Public: Opens multiple paths, in existing windows if possible.
   #
-  # * options
-  #    + pathsToOpen:
-  #      The array of file paths to open
-  #    + pidToKillWhenClosed:
-  #      The integer of the pid to kill
-  #    + newWindow:
-  #      Boolean of whether this should be opened in a new window.
-  #    + devMode:
-  #      Boolean to control the opened window's dev mode.
+  # options -
+  #   :pathsToOpen - The array of file paths to open
+  #   :pidToKillWhenClosed - The integer of the pid to kill
+  #   :newWindow - Boolean of whether this should be opened in a new window.
+  #   :devMode - Boolean to control the opened window's dev mode.
   openPaths: ({pathsToOpen, pidToKillWhenClosed, newWindow, devMode}) ->
     @openPath({pathToOpen, pidToKillWhenClosed, newWindow, devMode}) for pathToOpen in pathsToOpen ? []
 
   # Public: Opens a single path, in an existing window if possible.
   #
-  # * options
-  #    + pathToOpen:
-  #      The file path to open
-  #    + pidToKillWhenClosed:
-  #      The integer of the pid to kill
-  #    + newWindow:
-  #      Boolean of whether this should be opened in a new window.
-  #    + devMode:
-  #      Boolean to control the opened window's dev mode.
-  #    + initialSize:
-  #      Object with height and width keys.
-  openPath: ({pathToOpen, pidToKillWhenClosed, newWindow, devMode, initialSize}={}) ->
+  # options -
+  #   :pathToOpen - The file path to open
+  #   :pidToKillWhenClosed - The integer of the pid to kill
+  #   :newWindow - Boolean of whether this should be opened in a new window.
+  #   :devMode - Boolean to control the opened window's dev mode.
+  #   :windowDimensions - Object with height and width keys.
+  openPath: ({pathToOpen, pidToKillWhenClosed, newWindow, devMode, windowDimensions}={}) ->
     if pathToOpen
       [basename, initialLine] = path.basename(pathToOpen).split(':')
       if initialLine
@@ -321,6 +311,7 @@ class AtomApplication
     if existingWindow
       openedWindow = existingWindow
       openedWindow.openPath(pathToOpen, initialLine)
+      openedWindow.restore()
     else
       if devMode
         try
@@ -329,19 +320,31 @@ class AtomApplication
 
       bootstrapScript ?= require.resolve('../window-bootstrap')
       resourcePath ?= @resourcePath
-      openedWindow = new AtomWindow({pathToOpen, initialLine, bootstrapScript, resourcePath, devMode, initialSize})
+      openedWindow = new AtomWindow({pathToOpen, initialLine, bootstrapScript, resourcePath, devMode, windowDimensions})
 
     if pidToKillWhenClosed?
       @pidsToOpenWindows[pidToKillWhenClosed] = openedWindow
 
     openedWindow.browserWindow.on 'destroyed', =>
-      for pid, trackedWindow of @pidsToOpenWindows when trackedWindow is openedWindow
-        try
-          process.kill(pid)
-        catch error
-          if error.code isnt 'ESRCH'
-            console.log("Killing process #{pid} failed: #{error.code}")
-        delete @pidsToOpenWindows[pid]
+      @killProcessForWindow(openedWindow)
+
+  # Kill all processes associated with opened windows.
+  killAllProcesses: ->
+    @killProcess(pid) for pid of @pidsToOpenWindows
+
+  # Kill process associated with the given opened window.
+  killProcessForWindow: (openedWindow) ->
+    for pid, trackedWindow of @pidsToOpenWindows
+      @killProcess(pid) if trackedWindow is openedWindow
+
+  # Kill the process with the given pid.
+  killProcess: (pid) ->
+    try
+      process.kill(pid)
+    catch error
+      if error.code isnt 'ESRCH'
+        console.log("Killing process #{pid} failed: #{error.code}")
+    delete @pidsToOpenWindows[pid]
 
   # Open an atom:// url.
   #
@@ -349,11 +352,9 @@ class AtomApplication
   # responsible for opening the URL.  A new window will be created with
   # that package's `urlMain` as the bootstrap script.
   #
-  # * options
-  #    + urlToOpen:
-  #      The atom:// url to open.
-  #    + devMode:
-  #      Boolean to control the opened window's dev mode.
+  # options -
+  #   :urlToOpen - The atom:// url to open.
+  #   :devMode - Boolean to control the opened window's dev mode.
   openUrl: ({urlToOpen, devMode}) ->
     unless @packages?
       PackageManager = require '../package-manager'
@@ -369,7 +370,8 @@ class AtomApplication
       if pack.urlMain
         packagePath = @packages.resolvePackagePath(packageName)
         bootstrapScript = path.resolve(packagePath, pack.urlMain)
-        new AtomWindow({bootstrapScript, @resourcePath, devMode, urlToOpen, initialSize: @getFocusedWindowSize()})
+        windowDimensions = @focusedWindow()?.getDimensions()
+        new AtomWindow({bootstrapScript, @resourcePath, devMode, urlToOpen, windowDimensions})
       else
         console.log "Package '#{pack.name}' does not have a url main: #{urlToOpen}"
     else
@@ -377,13 +379,11 @@ class AtomApplication
 
   # Opens up a new {AtomWindow} to run specs within.
   #
-  # * options
-  #    + exitWhenDone:
-  #      A Boolean that if true, will close the window upon completion.
-  #    + resourcePath:
-  #      The path to include specs from.
-  #    + specPath:
-  #      The directory to load specs from.
+  # options -
+  #   :exitWhenDone - A Boolean that if true, will close the window upon
+  #                   completion.
+  #   :resourcePath - The path to include specs from.
+  #   :specPath - The directory to load specs from.
   runSpecs: ({exitWhenDone, resourcePath, specDirectory, logFile}) ->
     if resourcePath isnt @resourcePath and not fs.existsSync(resourcePath)
       resourcePath = @resourcePath
@@ -410,10 +410,18 @@ class AtomApplication
   #
   # Once paths are selected, they're opened in a new or existing {AtomWindow}s.
   #
-  # * options
-  #    + devMode:
-  #      A Boolean which controls whether any newly opened windows should  be in
-  #      dev mode or not.
-  promptForPath: ({devMode}={}) ->
-    dialog.showOpenDialog title: 'Open', properties: ['openFile', 'openDirectory', 'multiSelections', 'createDirectory'], (pathsToOpen) =>
+  # options -
+  #   :type - A String which specifies the type of the dialog, could be 'file',
+  #           'folder' or 'all'. The 'all' is only available on OS X.
+  #   :devMode - A Boolean which controls whether any newly opened windows
+  #              should  be in dev mode or not.
+  promptForPath: ({type, devMode}={}) ->
+    type ?= 'all'
+    properties =
+      switch type
+        when 'file' then ['openFile']
+        when 'folder' then ['openDirectory']
+        when 'all' then ['openFile', 'openDirectory']
+        else throw new Error("#{type} is an invalid type for promptForPath")
+    dialog.showOpenDialog title: 'Open', properties: properties.concat(['multiSelections', 'createDirectory']), (pathsToOpen) =>
       @openPaths({pathsToOpen, devMode})

src/browser/atom-window.coffee

@@ -1,5 +1,4 @@
 BrowserWindow = require 'browser-window'
-Menu = require 'menu'
 ContextMenu = require './context-menu'
 app = require 'app'
 dialog = require 'dialog'
@@ -8,9 +7,12 @@ path = require 'path'
 fs = require 'fs'
 url = require 'url'
 _ = require 'underscore-plus'
+{EventEmitter} = require 'events'
 
 module.exports =
 class AtomWindow
+  _.extend @prototype, EventEmitter.prototype
+
   @iconPath: path.resolve(__dirname, '..', '..', 'resources', 'atom.png')
   @includeShellLoadTime: true
 
@@ -22,12 +24,7 @@ class AtomWindow
     {@resourcePath, pathToOpen, initialLine, @isSpec, @exitWhenDone} = settings
     global.atomApplication.addWindow(this)
 
-    @setupNodePath(@resourcePath)
     @browserWindow = new BrowserWindow show: false, title: 'Atom', icon: @constructor.iconPath
-    @browserWindow.restart = _.wrap _.bind(@browserWindow.restart, @browserWindow), (restart) =>
-      @setupNodePath(@resourcePath)
-      restart()
-
     @handleEvents()
 
     loadSettings = _.extend({}, settings)
@@ -44,15 +41,15 @@ class AtomWindow
       loadSettings.initialPath = path.dirname(pathToOpen)
 
     @browserWindow.loadSettings = loadSettings
-    @browserWindow.once 'window:loaded', => @loaded = true
+    @browserWindow.once 'window:loaded', =>
+      @emit 'window:loaded'
+      @loaded = true
+
     @browserWindow.loadUrl @getUrl(loadSettings)
     @browserWindow.focusOnWebView() if @isSpec
 
     @openPath(pathToOpen, initialLine)
 
-  setupNodePath: (resourcePath) ->
-    process.env['NODE_PATH'] = path.resolve(resourcePath, 'exports')
-
   getUrl: (loadSettingsObj) ->
     # Ignore the windowState when passing loadSettings via URL, since it could
     # be quite large.
@@ -110,7 +107,7 @@ class AtomWindow
         when 1 then @browserWindow.restart()
 
     @browserWindow.on 'context-menu', (menuTemplate) =>
-      new ContextMenu(menuTemplate, @browserWindow)
+      new ContextMenu(menuTemplate, this)
 
     if @isSpec
       # Spec window's web view should always have focus
@@ -126,7 +123,7 @@ class AtomWindow
 
   sendCommand: (command, args...) ->
     if @isSpecWindow()
-      unless @sendCommandToFirstResponder(command)
+      unless global.atomApplication.sendCommandToFirstResponder(command)
         switch command
           when 'window:reload' then @reload()
           when 'window:toggle-dev-tools' then @toggleDevTools()
@@ -134,29 +131,27 @@ class AtomWindow
     else if @isWebViewFocused()
       @sendCommandToBrowserWindow(command, args...)
     else
-      unless @sendCommandToFirstResponder(command)
+      unless global.atomApplication.sendCommandToFirstResponder(command)
         @sendCommandToBrowserWindow(command, args...)
 
   sendCommandToBrowserWindow: (command, args...) ->
     action = if args[0]?.contextCommand then 'context-command' else 'command'
     ipc.sendChannel @browserWindow.getProcessId(), @browserWindow.getRoutingId(), action, command, args...
 
-  sendCommandToFirstResponder: (command) ->
-    switch command
-      when 'core:undo' then Menu.sendActionToFirstResponder('undo:')
-      when 'core:redo' then Menu.sendActionToFirstResponder('redo:')
-      when 'core:copy' then Menu.sendActionToFirstResponder('copy:')
-      when 'core:cut' then Menu.sendActionToFirstResponder('cut:')
-      when 'core:paste' then Menu.sendActionToFirstResponder('paste:')
-      when 'core:select-all' then Menu.sendActionToFirstResponder('selectAll:')
-      else return false
-    true
+  getDimensions: ->
+    [x, y] = @browserWindow.getPosition()
+    [width, height] = @browserWindow.getSize()
+    {x, y, width, height}
 
   close: -> @browserWindow.close()
 
   focus: -> @browserWindow.focus()
 
-  getSize: -> @browserWindow.getSize()
+  minimize: -> @browserWindow.minimize()
+
+  maximize: -> @browserWindow.maximize()
+
+  restore: -> @browserWindow.restore()
 
   handlesAtomCommands: ->
     not @isSpecWindow() and @isWebViewFocused()

src/browser/auto-update-manager.coffee

@@ -0,0 +1,76 @@
+autoUpdater = require 'auto-updater'
+dialog = require 'dialog'
+_ = require 'underscore-plus'
+{EventEmitter} = require 'events'
+
+IDLE_STATE='idle'
+CHECKING_STATE='checking'
+DOWNLOADING_STATE='downloading'
+UPDATE_AVAILABLE_STATE='update-available'
+NO_UPDATE_AVAILABLE_STATE='no-update-available'
+ERROR_STATE='error'
+
+module.exports =
+class AutoUpdateManager
+  _.extend @prototype, EventEmitter.prototype
+
+  constructor: (@version) ->
+    @state = IDLE_STATE
+
+    # Only released versions should check for updates.
+    return if /\w{7}/.test(@version)
+
+    autoUpdater.setFeedUrl "https://atom.io/api/updates?version=#{@version}"
+
+    autoUpdater.on 'checking-for-update', =>
+      @setState(CHECKING_STATE)
+
+    autoUpdater.on 'update-not-available', =>
+      @setState(NO_UPDATE_AVAILABLE_STATE)
+
+    autoUpdater.on 'update-available', =>
+      @setState(DOWNLOADING_STATE)
+
+    autoUpdater.on 'error', (event, message) =>
+      @setState(ERROR_STATE)
+      console.error "Error Downloading Update: #{message}"
+
+    autoUpdater.on 'update-downloaded', (event, @releaseNotes, @releaseVersion) =>
+      @setState(UPDATE_AVAILABLE_STATE)
+      @emitUpdateAvailableEvent(@getWindows()...)
+
+    @check(hidePopups: true)
+
+  emitUpdateAvailableEvent: (windows...) ->
+    return unless @releaseVersion? and @releaseNotes
+    for atomWindow in windows
+      atomWindow.sendCommand('window:update-available', [@releaseVersion, @releaseNotes])
+
+  setState: (state) ->
+    return unless @state != state
+    @state = state
+    @emit 'state-changed', @state
+
+  getState: ->
+    @state
+
+  check: ({hidePopups}={})->
+    unless hidePopups
+      autoUpdater.once 'update-not-available', @onUpdateNotAvailable
+      autoUpdater.once 'error', @onUpdateError
+
+    autoUpdater.checkForUpdates()
+
+  install: ->
+    autoUpdater.quitAndInstall()
+
+  onUpdateNotAvailable: =>
+    autoUpdater.removeListener 'error', @onUpdateError
+    dialog.showMessageBox type: 'info', buttons: ['OK'], message: 'No update available.', detail: "Version #{@version} is the latest version."
+
+  onUpdateError: (event, message) =>
+    autoUpdater.removeListener 'update-not-available', @onUpdateNotAvailable
+    dialog.showMessageBox type: 'warning', buttons: ['OK'], message: 'There was an error checking for updates.', detail: message
+
+  getWindows: ->
+    global.atomApplication.windows

src/browser/context-menu.coffee

@@ -2,10 +2,10 @@ Menu = require 'menu'
 
 module.exports =
 class ContextMenu
-  constructor: (template, browserWindow) ->
+  constructor: (template, @atomWindow) ->
     template = @createClickHandlers(template)
     menu = Menu.buildFromTemplate(template)
-    menu.popup(browserWindow)
+    menu.popup(@atomWindow.browserWindow)
 
   # It's necessary to build the event handlers in this process, otherwise
   # closures are drug across processes and failed to be garbage collected
@@ -13,7 +13,10 @@ class ContextMenu
   createClickHandlers: (template) ->
     for item in template
       if item.command
-        (item.commandOptions ?= {}).contextCommand = true
-        item.click = do (item) ->
-          => global.atomApplication.sendCommand(item.command, item.commandOptions)
+        item.commandOptions ?= {}
+        item.commandOptions.contextCommand = true
+        item.commandOptions.atomWindow = @atomWindow
+        do (item) =>
+          item.click = =>
+            global.atomApplication.sendCommandToWindow(item.command, @atomWindow, item.commandOptions)
       item

src/browser/main.coffee

@@ -9,12 +9,7 @@ optimist = require 'optimist'
 nslog = require 'nslog'
 dialog = require 'dialog'
 
-console.log = (args...) ->
-  # TODO: Make NSLog work as expected
-  output = args.map((arg) -> JSON.stringify(arg)).join(" ")
-  nslog(output)
-  if process.platform isnt 'darwin'
-    fs.writeFileSync('debug.log', output, flag: 'a')
+console.log = nslog
 
 process.on 'uncaughtException', (error={}) ->
   nslog(error.message) if error.message?
@@ -77,7 +72,7 @@ parseCommandLine = ->
   options.alias('h', 'help').boolean('h').describe('h', 'Print this usage message.')
   options.alias('l', 'log-file').string('l').describe('l', 'Log all output to file.')
   options.alias('n', 'new-window').boolean('n').describe('n', 'Open a new window.')
-  options.alias('s', 'spec-directory').string('s').describe('s', 'Set the directory from which specs are loaded (default: Atom\'s spec directory).')
+  options.alias('s', 'spec-directory').string('s').describe('s', 'Set the spec directory (default: Atom\'s spec directory).')
   options.alias('t', 'test').boolean('t').describe('t', 'Run the specified specs and exit with error code on failures.')
   options.alias('v', 'version').boolean('v').describe('v', 'Print the version.')
   options.alias('w', 'wait').boolean('w').describe('w', 'Wait for window to be closed before returning.')

src/coffee-cache.coffee

@@ -1,33 +1,29 @@
 crypto = require 'crypto'
-fs = require 'fs'
 path = require 'path'
-os = require 'os'
 
 CoffeeScript = require 'coffee-script'
 CSON = require 'season'
-mkdir = require('mkdirp').sync
+fs = require 'fs-plus'
 
-tmpDir = if process.platform is 'win32' then os.tmpdir() else '/tmp'
-cacheDir = path.join(tmpDir, 'atom-compile-cache')
+cacheDir = path.join(fs.absolute('~/.atom'), 'compile-cache')
 coffeeCacheDir = path.join(cacheDir, 'coffee')
 CSON.setCacheDir(path.join(cacheDir, 'cson'))
 
 getCachePath = (coffee) ->
   digest = crypto.createHash('sha1').update(coffee, 'utf8').digest('hex')
-  path.join(coffeeCacheDir, "#{digest}.coffee")
+  path.join(coffeeCacheDir, "#{digest}.js")
 
 getCachedJavaScript = (cachePath) ->
-  if stat = fs.statSyncNoException(cachePath)
+  if fs.isFileSync(cachePath)
     try
-      fs.readFileSync(cachePath, 'utf8') if stat.isFile()
+      fs.readFileSync(cachePath, 'utf8')
 
 compileCoffeeScript = (coffee, filePath, cachePath) ->
-  {js,v3SourceMap} = CoffeeScript.compile(coffee, filename: filePath, sourceMap: true)
+  {js, v3SourceMap} = CoffeeScript.compile(coffee, filename: filePath, sourceMap: true)
   # Include source map in the web page environment.
   if btoa? and JSON? and unescape? and encodeURIComponent?
     js = "#{js}\n//# sourceMappingURL=data:application/json;base64,#{btoa unescape encodeURIComponent v3SourceMap}\n//# sourceURL=#{filePath}"
   try
-    mkdir(path.dirname(cachePath))
     fs.writeFileSync(cachePath, js)
   js
 

src/config.coffee

@@ -18,9 +18,9 @@ pathWatcher = require 'pathwatcher'
 # ## Example
 #
 # ```coffeescript
-# atom.config.set('myplugin.key', 'value')
-# atom.config.observe 'myplugin.key', ->
-#   console.log 'My configuration changed:', atom.config.get('myplugin.key')
+# atom.config.set('my-package.key', 'value')
+# atom.config.observe 'my-package.key', ->
+#   console.log 'My configuration changed:', atom.config.get('my-package.key')
 # ```
 module.exports =
 class Config
@@ -86,9 +86,9 @@ class Config
       hash = hash[key]
 
     _.extend hash, defaults
-    @update()
+    @emit 'updated'
 
-  # Public: Get the path to the config file being used.
+  # Public: Get the {String} path to the config file being used.
   getUserConfigPath: ->
     @configFilePath
 
@@ -98,10 +98,10 @@ class Config
 
   # Public: Retrieves the setting for the given key.
   #
-  # keyPath - The {String} name of the key to retrieve
+  # keyPath - The {String} name of the key to retrieve.
   #
-  # Returns the value from Atom's default settings, the user's configuration file,
-  # or `null` if the key doesn't exist in either.
+  # Returns the value from Atom's default settings, the user's configuration
+  # file, or `null` if the key doesn't exist in either.
   get: (keyPath) ->
     value = _.valueForKeyPath(@settings, keyPath) ? _.valueForKeyPath(@defaultSettings, keyPath)
     _.deepClone(value)
@@ -110,8 +110,8 @@ class Config
   #
   # keyPath - The {String} name of the key to retrieve
   #
-  # Returns the value from Atom's default settings, the user's configuration file,
-  # or `NaN` if the key doesn't exist in either.
+  # Returns the value from Atom's default settings, the user's configuration
+  # file, or `NaN` if the key doesn't exist in either.
   getInt: (keyPath) ->
     parseInt(@get(keyPath))
 
@@ -121,8 +121,8 @@ class Config
   # defaultValue - The integer {Number} to fall back to if the value isn't
   #                positive, defaults to 0.
   #
-  # Returns the value from Atom's default settings, the user's configuration file,
-  # or `defaultValue` if the key value isn't greater than zero.
+  # Returns the value from Atom's default settings, the user's configuration
+  # file, or `defaultValue` if the key value isn't greater than zero.
   getPositiveInt: (keyPath, defaultValue=0) ->
     Math.max(@getInt(keyPath), 0) or defaultValue
 
@@ -130,13 +130,14 @@ class Config
   #
   # This value is stored in Atom's internal configuration file.
   #
-  # keyPath - The {String} name of the key
-  # value - The value of the setting
+  # keyPath - The {String} name of the key.
+  # value - The value of the setting.
   #
   # Returns the `value`.
   set: (keyPath, value) ->
-    if @get(keyPath) != value
-      value = undefined if _.valueForKeyPath(@defaultSettings, keyPath) == value
+    if @get(keyPath) isnt value
+      defaultValue = _.valueForKeyPath(@defaultSettings, keyPath)
+      value = undefined if _.isEqual(defaultValue, value)
       _.setValueForKeyPath(@settings, keyPath, value)
       @update()
     value
@@ -146,6 +147,8 @@ class Config
   # The new value will be `true` if the value is currently falsy and will be
   # `false` if the value is currently truthy.
   #
+  # keyPath - The {String} name of the key.
+  #
   # Returns the new value.
   toggle: (keyPath) ->
     @set(keyPath, !@get(keyPath))
@@ -158,12 +161,30 @@ class Config
   restoreDefault: (keyPath) ->
     @set(keyPath, _.valueForKeyPath(@defaultSettings, keyPath))
 
+  # Public: Get the default value of the key path.
+  #
+  # keyPath - The {String} name of the key.
+  #
+  # Returns the default value.
+  getDefault: (keyPath) ->
+    defaultValue = _.valueForKeyPath(@defaultSettings, keyPath)
+    _.deepClone(defaultValue)
+
+  # Public: Is the key path value its default value?
+  #
+  # keyPath - The {String} name of the key.
+  #
+  # Returns a {Boolean}, `true` if the current value is the default, `false`
+  # otherwise.
+  isDefault: (keyPath) ->
+    not _.valueForKeyPath(@settings, keyPath)?
+
   # Public: Push the value to the array at the key path.
   #
   # keyPath - The {String} key path.
   # value - The value to push to the array.
   #
-  # Returns the new array length of the setting.
+  # Returns the new array length {Number} of the setting.
   pushAtKeyPath: (keyPath, value) ->
     arrayValue = @get(keyPath) ? []
     result = arrayValue.push(value)
@@ -175,7 +196,7 @@ class Config
   # keyPath - The {String} key path.
   # value - The value to shift onto the array.
   #
-  # Returns the new array length of the setting.
+  # Returns the new array length {Number} of the setting.
   unshiftAtKeyPath: (keyPath, value) ->
     arrayValue = @get(keyPath) ? []
     result = arrayValue.unshift(value)
@@ -225,9 +246,9 @@ class Config
     callback(value) if options.callNow ? true
     subscription
 
-  # Public: Unobserve all callbacks on a given key
+  # Public: Unobserve all callbacks on a given key.
   #
-  # keyPath - The {String} name of the key to unobserve
+  # keyPath - The {String} name of the key to unobserve.
   unobserve: (keyPath) ->
     @off("updated.#{keyPath.replace(/\./, '-')}")
 

src/context-menu-manager.coffee

@@ -18,7 +18,7 @@ class ContextMenuManager
       label: 'Inspect Element'
       command: 'application:inspect'
       executeAtBuild: (e) ->
-        @.commandOptions = x: e.pageX, y: e.pageY
+        @commandOptions = x: e.pageX, y: e.pageY
     ]
 
   # Public: Creates menu definitions from the object specified by the menu

src/cursor-component.coffee

@@ -0,0 +1,13 @@
+React = require 'react'
+{div} = require 'reactionary'
+
+module.exports =
+CursorComponent = React.createClass
+  displayName: 'CursorComponent'
+
+  render: ->
+    {top, left, height, width} = @props.cursor.getPixelRect()
+    className = 'cursor'
+    className += ' blink-off' if @props.blinkOff
+
+    div className: className, style: {top, left, height, width}

src/cursor.coffee

@@ -1,5 +1,5 @@
 {Point, Range} = require 'text-buffer'
-{Emitter} = require 'emissary'
+{Model} = require 'theorist'
 _ = require 'underscore-plus'
 
 # Public: The `Cursor` class represents the little blinking line identifying
@@ -8,9 +8,7 @@ _ = require 'underscore-plus'
 # Cursors belong to {Editor}s and have some metadata attached in the form
 # of a {Marker}.
 module.exports =
-class Cursor
-  Emitter.includeInto(this)
-
+class Cursor extends Model
   screenPosition: null
   bufferPosition: null
   goalColumn: null
@@ -18,7 +16,8 @@ class Cursor
   needsAutoscroll: null
 
   # Instantiated by an {Editor}
-  constructor: ({@editor, @marker}) ->
+  constructor: ({@editor, @marker, id}) ->
+    @assignId(id)
     @updateVisibility()
     @marker.on 'changed', (e) =>
       @updateVisibility()
@@ -27,7 +26,12 @@ class Cursor
       {textChanged} = e
       return if oldHeadScreenPosition.isEqual(newHeadScreenPosition)
 
+      # Supports old editor view
       @needsAutoscroll ?= @isLastCursor() and !textChanged
+
+      # Supports react editor view
+      @autoscroll() if @needsAutoscroll and @editor.manageScrollPosition
+
       @goalColumn = null
 
       movedEvent =
@@ -38,7 +42,7 @@ class Cursor
         textChanged: textChanged
 
       @emit 'moved', movedEvent
-      @editor.emit 'cursor-moved', movedEvent
+      @editor.cursorMoved(movedEvent)
     @marker.on 'destroyed', =>
       @destroyed = true
       @editor.removeCursor(this)
@@ -54,6 +58,9 @@ class Cursor
     unless fn()
       @emit 'autoscrolled' if @needsAutoscroll
 
+  getPixelRect: ->
+    @editor.pixelRectForScreenRange(@getScreenRange())
+
   # Public: Moves a cursor to a given screen position.
   #
   # screenPosition - An {Array} of two numbers: the screen row, and the screen
@@ -69,6 +76,10 @@ class Cursor
   getScreenPosition: ->
     @marker.getHeadScreenPosition()
 
+  getScreenRange: ->
+    {row, column} = @getScreenPosition()
+    new Range(new Point(row, column), new Point(row, column + 1))
+
   # Public: Moves a cursor to a given buffer position.
   #
   # bufferPosition - An {Array} of two numbers: the buffer row, and the buffer
@@ -84,6 +95,9 @@ class Cursor
   getBufferPosition: ->
     @marker.getHeadBufferPosition()
 
+  autoscroll: ->
+    @editor.scrollToScreenRange(@getScreenRange())
+
   # Public: If the marker range is empty, the cursor is marked as being visible.
   updateVisibility: ->
     @setVisible(@marker.getBufferRange().isEmpty())
@@ -315,12 +329,14 @@ class Cursor
   #   :includeNonWordCharacters - A {Boolean} indicating whether to include
   #                               non-word characters in the default word regex.
   #                               Has no effect if wordRegex is set.
+  #   :allowPrevious - A {Boolean} indicating whether the beginning of the
+  #                    previous word can be returned.
   #
   # Returns a {Range}.
   getBeginningOfCurrentWordBufferPosition: (options = {}) ->
     allowPrevious = options.allowPrevious ? true
     currentBufferPosition = @getBufferPosition()
-    previousNonBlankRow = @editor.buffer.previousNonBlankRow(currentBufferPosition.row)
+    previousNonBlankRow = @editor.buffer.previousNonBlankRow(currentBufferPosition.row) ? 0
     scanRange = [[previousNonBlankRow, 0], currentBufferPosition]
 
     beginningOfWordPosition = null
@@ -330,7 +346,12 @@ class Cursor
       if not beginningOfWordPosition?.isEqual(currentBufferPosition)
         stop()
 
-    beginningOfWordPosition or currentBufferPosition
+    if beginningOfWordPosition?
+      beginningOfWordPosition
+    else if allowPrevious
+      new Point(0, 0)
+    else
+      currentBufferPosition
 
   # Public: Retrieves buffer position of previous word boundary. It might be on
   # the current word, or the previous word.

src/cursors-component.coffee

@@ -0,0 +1,50 @@
+React = require 'react'
+{div} = require 'reactionary'
+{debounce} = require 'underscore-plus'
+SubscriberMixin = require './subscriber-mixin'
+CursorComponent = require './cursor-component'
+
+
+module.exports =
+CursorsComponent = React.createClass
+  displayName: 'CursorsComponent'
+  mixins: [SubscriberMixin]
+
+  cursorBlinkIntervalHandle: null
+
+  render: ->
+    {editor} = @props
+    blinkOff = @state.blinkCursorsOff
+
+    div className: 'cursors',
+      if @isMounted()
+        for selection in editor.getSelections()
+          if selection.isEmpty() and editor.selectionIntersectsVisibleRowRange(selection)
+            {cursor} = selection
+            CursorComponent({key: cursor.id, cursor, blinkOff})
+
+  getInitialState: ->
+    blinkCursorsOff: false
+
+  componentDidMount: ->
+    {editor} = @props
+    @startBlinkingCursors()
+
+  componentWillUnmount: ->
+    clearInterval(@cursorBlinkIntervalHandle)
+
+  componentWillUpdate: ({cursorsMoved}) ->
+    @pauseCursorBlinking() if cursorsMoved
+
+  startBlinkingCursors: ->
+    @cursorBlinkIntervalHandle = setInterval(@toggleCursorBlink, @props.cursorBlinkPeriod / 2)
+
+  startBlinkingCursorsAfterDelay: null # Created lazily
+
+  toggleCursorBlink: -> @setState(blinkCursorsOff: not @state.blinkCursorsOff)
+
+  pauseCursorBlinking: ->
+    @state.blinkCursorsOff = false
+    clearInterval(@cursorBlinkIntervalHandle)
+    @startBlinkingCursorsAfterDelay ?= debounce(@startBlinkingCursors, @props.cursorBlinkResumeDelay)
+    @startBlinkingCursorsAfterDelay()

src/custom-event-mixin.coffee

@@ -0,0 +1,15 @@
+module.exports =
+CustomEventMixin =
+  componentWillMount: ->
+    @customEventListeners = {}
+
+  componentWillUnmount: ->
+    for name, listeners in @customEventListeners
+      for listener in listeners
+        @getDOMNode().removeEventListener(name, listener)
+
+  addCustomEventListeners: (customEventListeners) ->
+    for name, listener of customEventListeners
+      @customEventListeners[name] ?= []
+      @customEventListeners[name].push(listener)
+      @getDOMNode().addEventListener(name, listener)

src/display-buffer-marker.coffee

@@ -54,6 +54,9 @@ class DisplayBufferMarker
   setBufferRange: (bufferRange, options) ->
     @bufferMarker.setRange(bufferRange, options)
 
+  getPixelRange: ->
+    @displayBuffer.pixelRangeForScreenRange(@getScreenRange(), false)
+
   # Retrieves the screen position of the marker's head.
   #
   # Returns a {Point}.
@@ -140,10 +143,10 @@ class DisplayBufferMarker
     @bufferMarker.isDestroyed()
 
   getAttributes: ->
-    @bufferMarker.getAttributes()
+    @bufferMarker.getProperties()
 
   setAttributes: (attributes) ->
-    @bufferMarker.setAttributes(attributes)
+    @bufferMarker.setProperties(attributes)
 
   matchesAttributes: (attributes) ->
     attributes = @displayBuffer.translateToBufferMarkerParams(attributes)

src/display-buffer.coffee

@@ -20,14 +20,25 @@ class DisplayBuffer extends Model
   Serializable.includeInto(this)
 
   @properties
+    manageScrollPosition: false
     softWrap: null
     editorWidthInChars: null
+    lineHeight: null
+    defaultCharWidth: null
+    height: null
+    width: null
+    scrollTop: 0
+    scrollLeft: 0
+
+  verticalScrollMargin: 2
+  horizontalScrollMargin: 6
 
   constructor: ({tabLength, @editorWidthInChars, @tokenizedBuffer, buffer}={}) ->
     super
     @softWrap ?= atom.config.get('editor.softWrap') ? false
     @tokenizedBuffer ?= new TokenizedBuffer({tabLength, buffer})
     @buffer = @tokenizedBuffer.buffer
+    @charWidthsByScope = {}
     @markers = {}
     @foldsByMarkerId = {}
     @updateAllScreenLines()
@@ -51,6 +62,8 @@ class DisplayBuffer extends Model
     id: @id
     softWrap: @softWrap
     editorWidthInChars: @editorWidthInChars
+    scrollTop: @scrollTop
+    scrollLeft: @scrollLeft
     tokenizedBuffer: @tokenizedBuffer.serialize()
 
   deserializeParams: (params) ->
@@ -59,6 +72,9 @@ class DisplayBuffer extends Model
 
   copy: ->
     newDisplayBuffer = new DisplayBuffer({@buffer, tabLength: @getTabLength()})
+    newDisplayBuffer.setScrollTop(@getScrollTop())
+    newDisplayBuffer.setScrollLeft(@getScrollLeft())
+
     for marker in @findMarkers(displayBufferId: @id)
       marker.copy(displayBufferId: newDisplayBuffer.id)
     newDisplayBuffer
@@ -89,6 +105,151 @@ class DisplayBuffer extends Model
   # visible - A {Boolean} indicating of the tokenized buffer is shown
   setVisible: (visible) -> @tokenizedBuffer.setVisible(visible)
 
+  getVerticalScrollMargin: -> @verticalScrollMargin
+  setVerticalScrollMargin: (@verticalScrollMargin) -> @verticalScrollMargin
+
+  getHorizontalScrollMargin: -> @horizontalScrollMargin
+  setHorizontalScrollMargin: (@horizontalScrollMargin) -> @horizontalScrollMargin
+
+  getHeight: -> @height ? @getScrollHeight()
+  setHeight: (@height) -> @height
+
+  getWidth: -> @width ? @getScrollWidth()
+  setWidth: (newWidth) ->
+    oldWidth = @width
+    @width = newWidth
+    @updateWrappedScreenLines() if newWidth isnt oldWidth and @softWrap
+    @width
+
+  getScrollTop: -> @scrollTop
+  setScrollTop: (scrollTop) ->
+    if @manageScrollPosition
+      @scrollTop = Math.max(0, Math.min(@getScrollHeight() - @getHeight(), scrollTop))
+    else
+      @scrollTop = scrollTop
+
+  getScrollBottom: -> @scrollTop + @height
+  setScrollBottom: (scrollBottom) ->
+    @setScrollTop(scrollBottom - @height)
+    @getScrollBottom()
+
+  getScrollLeft: -> @scrollLeft
+  setScrollLeft: (scrollLeft) ->
+    if @manageScrollPosition
+      @scrollLeft = Math.max(0, Math.min(@getScrollWidth() - @getWidth(), scrollLeft))
+    else
+      @scrollLeft = scrollLeft
+
+  getScrollRight: -> @scrollLeft + @width
+  setScrollRight: (scrollRight) ->
+    @setScrollLeft(scrollRight - @width)
+    @getScrollRight()
+
+  getLineHeight: -> @lineHeight
+  setLineHeight: (@lineHeight) -> @lineHeight
+
+  getDefaultCharWidth: -> @defaultCharWidth
+  setDefaultCharWidth: (@defaultCharWidth) -> @defaultCharWidth
+
+  getScopedCharWidth: (scopeNames, char) ->
+    @getScopedCharWidths(scopeNames)[char]
+
+  getScopedCharWidths: (scopeNames) ->
+    scope = @charWidthsByScope
+    for scopeName in scopeNames
+      scope[scopeName] ?= {}
+      scope = scope[scopeName]
+    scope.charWidths ?= {}
+    scope.charWidths
+
+  setScopedCharWidth: (scopeNames, char, width) ->
+    @getScopedCharWidths(scopeNames)[char] = width
+
+  setScopedCharWidths: (scopeNames, charWidths) ->
+    _.extend(@getScopedCharWidths(scopeNames), charWidths)
+
+  clearScopedCharWidths: ->
+    @charWidthsByScope = {}
+
+  getScrollHeight: ->
+    unless @getLineHeight() > 0
+      throw new Error("You must assign lineHeight before calling ::getScrollHeight()")
+
+    @getLineCount() * @getLineHeight()
+
+  getScrollWidth: ->
+    @getMaxLineLength() * @getDefaultCharWidth()
+
+  getVisibleRowRange: ->
+    unless @getLineHeight() > 0
+      throw new Error("You must assign a non-zero lineHeight before calling ::getVisibleRowRange()")
+
+    heightInLines = Math.ceil(@getHeight() / @getLineHeight()) + 1
+    startRow = Math.floor(@getScrollTop() / @getLineHeight())
+    endRow = Math.min(@getLineCount(), Math.ceil(startRow + heightInLines))
+    [startRow, endRow]
+
+  intersectsVisibleRowRange: (startRow, endRow) ->
+    [visibleStart, visibleEnd] = @getVisibleRowRange()
+    not (endRow <= visibleStart or visibleEnd <= startRow)
+
+  selectionIntersectsVisibleRowRange: (selection) ->
+    {start, end} = selection.getScreenRange()
+    @intersectsVisibleRowRange(start.row, end.row + 1)
+
+  scrollToScreenRange: (screenRange) ->
+    verticalScrollMarginInPixels = @getVerticalScrollMargin() * @getLineHeight()
+    horizontalScrollMarginInPixels = @getHorizontalScrollMargin() * @getDefaultCharWidth()
+
+    {top, left, height, width} = @pixelRectForScreenRange(screenRange)
+    bottom = top + height
+    right = left + width
+    desiredScrollTop = top - verticalScrollMarginInPixels
+    desiredScrollBottom = bottom + verticalScrollMarginInPixels
+    desiredScrollLeft = left - horizontalScrollMarginInPixels
+    desiredScrollRight = right + horizontalScrollMarginInPixels
+
+    if desiredScrollTop < @getScrollTop()
+      @setScrollTop(desiredScrollTop)
+    else if desiredScrollBottom > @getScrollBottom()
+      @setScrollBottom(desiredScrollBottom)
+
+    if desiredScrollLeft < @getScrollLeft()
+      @setScrollLeft(desiredScrollLeft)
+    else if desiredScrollRight > @getScrollRight()
+      @setScrollRight(desiredScrollRight)
+
+  scrollToScreenPosition: (screenPosition) ->
+    @scrollToScreenRange(new Range(screenPosition, screenPosition))
+
+  scrollToBufferPosition: (bufferPosition) ->
+    @scrollToScreenPosition(@screenPositionForBufferPosition(bufferPosition))
+
+  pixelRectForScreenRange: (screenRange) ->
+    if screenRange.end.row > screenRange.start.row
+      top = @pixelPositionForScreenPosition(screenRange.start).top
+      left = 0
+      height = (screenRange.end.row - screenRange.start.row + 1) * @getLineHeight()
+      width = @getScrollWidth()
+    else
+      {top, left} = @pixelPositionForScreenPosition(screenRange.start)
+      height = @getLineHeight()
+      width = @pixelPositionForScreenPosition(screenRange.end).left - left
+
+    {top, left, width, height}
+
+  # Retrieves the current tab length.
+  #
+  # Returns a {Number}.
+  getTabLength: ->
+    @tokenizedBuffer.getTabLength()
+
+  # Specifies the tab length.
+  #
+  # tabLength - A {Number} that defines the new tab length.
+  setTabLength: (tabLength) ->
+    @tokenizedBuffer.setTabLength(tabLength)
+
   # Deprecated: Use the softWrap property directly
   setSoftWrap: (@softWrap) -> @softWrap
 
@@ -105,12 +266,19 @@ class DisplayBuffer extends Model
       if editorWidthInChars isnt previousWidthInChars and @softWrap
         @updateWrappedScreenLines()
 
-  getSoftWrapColumn: ->
-    if atom.config.get('editor.softWrapAtPreferredLineLength')
-      Math.min(@editorWidthInChars, atom.config.getPositiveInt('editor.preferredLineLength', @editorWidthInChars))
+  getEditorWidthInChars: ->
+    width = @getWidth()
+    if width? and @defaultCharWidth > 0
+      Math.floor(width / @defaultCharWidth)
     else
       @editorWidthInChars
 
+  getSoftWrapColumn: ->
+    if atom.config.get('editor.softWrapAtPreferredLineLength')
+      Math.min(@getEditorWidthInChars(), atom.config.getPositiveInt('editor.preferredLineLength', @getEditorWidthInChars()))
+    else
+      @getEditorWidthInChars()
+
   # Gets the screen line for the given screen row.
   #
   # screenRow - A {Number} indicating the screen row.
@@ -134,6 +302,9 @@ class DisplayBuffer extends Model
   getLines: ->
     new Array(@screenLines...)
 
+  indentLevelForLine: (line) ->
+    @tokenizedBuffer.indentLevelForLine(line)
+
   # Given starting and ending screen rows, this returns an array of the
   # buffer rows corresponding to every screen row in the range
   #
@@ -273,6 +444,52 @@ class DisplayBuffer extends Model
     end = @bufferPositionForScreenPosition(screenRange.end)
     new Range(start, end)
 
+  pixelRangeForScreenRange: (screenRange, clip=true) ->
+    {start, end} = Range.fromObject(screenRange)
+    {start: @pixelPositionForScreenPosition(start, clip), end: @pixelPositionForScreenPosition(end, clip)}
+
+  pixelPositionForScreenPosition: (screenPosition, clip=true) ->
+    screenPosition = Point.fromObject(screenPosition)
+    screenPosition = @clipScreenPosition(screenPosition) if clip
+
+    targetRow = screenPosition.row
+    targetColumn = screenPosition.column
+    defaultCharWidth = @defaultCharWidth
+
+    top = targetRow * @lineHeight
+    left = 0
+    column = 0
+    for token in @lineForRow(targetRow).tokens
+      charWidths = @getScopedCharWidths(token.scopes)
+      for char in token.value
+        return {top, left} if column is targetColumn
+        left += charWidths[char] ? defaultCharWidth
+        column++
+    {top, left}
+
+  screenPositionForPixelPosition: (pixelPosition) ->
+    targetTop = pixelPosition.top
+    targetLeft = pixelPosition.left
+    defaultCharWidth = @defaultCharWidth
+    row = Math.floor(targetTop / @getLineHeight())
+    row = Math.min(row, @getLastRow())
+    row = Math.max(0, row)
+
+    left = 0
+    column = 0
+    for token in @lineForRow(row).tokens
+      charWidths = @getScopedCharWidths(token.scopes)
+      for char in token.value
+        charWidth = charWidths[char] ? defaultCharWidth
+        break if targetLeft <= left + (charWidth / 2)
+        left += charWidth
+        column++
+
+    new Point(row, column)
+
+  pixelPositionForBufferPosition: (bufferPosition) ->
+    @pixelPositionForScreenPosition(@screenPositionForBufferPosition(bufferPosition))
+
   # Gets the number of screen lines.
   #
   # Returns a {Number}.
@@ -358,18 +575,6 @@ class DisplayBuffer extends Model
   tokenForBufferPosition: (bufferPosition) ->
     @tokenizedBuffer.tokenForPosition(bufferPosition)
 
-  # Retrieves the current tab length.
-  #
-  # Returns a {Number}.
-  getTabLength: ->
-    @tokenizedBuffer.getTabLength()
-
-  # Specifies the tab length.
-  #
-  # tabLength - A {Number} that defines the new tab length.
-  setTabLength: (tabLength) ->
-    @tokenizedBuffer.setTabLength(tabLength)
-
   # Get the grammar for this buffer.
   #
   # Returns the current {Grammar} or the {NullGrammar}.
@@ -493,8 +698,8 @@ class DisplayBuffer extends Model
   # options - Options to pass to the {Marker} constructor
   #
   # Returns a {Number} representing the new marker's ID.
-  markBufferRange: (args...) ->
-    @getMarker(@buffer.markRange(args...).id)
+  markBufferRange: (range, options) ->
+    @getMarker(@buffer.markRange(range, options).id)
 
   # Public: Constructs a new marker at the given screen position.
   #

src/editor-component.coffee

@@ -0,0 +1,338 @@
+React = require 'react'
+{div, span} = require 'reactionary'
+{debounce} = require 'underscore-plus'
+
+GutterComponent = require './gutter-component'
+EditorScrollViewComponent = require './editor-scroll-view-component'
+ScrollbarComponent = require './scrollbar-component'
+SubscriberMixin = require './subscriber-mixin'
+
+module.exports =
+EditorComponent = React.createClass
+  displayName: 'EditorComponent'
+  mixins: [SubscriberMixin]
+
+  pendingScrollTop: null
+  pendingScrollLeft: null
+  selectOnMouseMove: false
+  batchingUpdates: false
+  updateRequested: false
+  cursorsMoved: false
+  preservedRowRange: null
+  scrollingVertically: false
+
+  render: ->
+    {focused, fontSize, lineHeight, fontFamily, showIndentGuide} = @state
+    {editor, cursorBlinkPeriod, cursorBlinkResumeDelay} = @props
+    if @isMounted()
+      renderedRowRange = @getRenderedRowRange()
+      scrollHeight = editor.getScrollHeight()
+      scrollWidth = editor.getScrollWidth()
+      scrollTop = editor.getScrollTop()
+      scrollLeft = editor.getScrollLeft()
+      lineHeightInPixels = editor.getLineHeight()
+
+    className = 'editor editor-colors react'
+    className += ' is-focused' if focused
+
+    div className: className, style: {fontSize, lineHeight, fontFamily}, tabIndex: -1,
+      GutterComponent {
+        editor, renderedRowRange, scrollTop, scrollHeight,
+        lineHeight: lineHeightInPixels, @pendingChanges
+      }
+
+      EditorScrollViewComponent {
+        ref: 'scrollView', editor, fontSize, fontFamily, showIndentGuide
+        scrollHeight, scrollWidth, lineHeight: lineHeightInPixels,
+        renderedRowRange, @pendingChanges, @scrollingVertically, @cursorsMoved,
+        cursorBlinkPeriod, cursorBlinkResumeDelay, @onInputFocused, @onInputBlurred
+      }
+
+      ScrollbarComponent
+        ref: 'verticalScrollbar'
+        className: 'vertical-scrollbar'
+        orientation: 'vertical'
+        onScroll: @onVerticalScroll
+        scrollTop: scrollTop
+        scrollHeight: scrollHeight
+
+      ScrollbarComponent
+        ref: 'horizontalScrollbar'
+        className: 'horizontal-scrollbar'
+        orientation: 'horizontal'
+        onScroll: @onHorizontalScroll
+        scrollLeft: scrollLeft
+        scrollWidth: scrollWidth
+
+  getRenderedRowRange: ->
+    renderedRowRange = @props.editor.getVisibleRowRange()
+    if @preservedRowRange?
+      renderedRowRange[0] = Math.min(@preservedRowRange[0], renderedRowRange[0])
+      renderedRowRange[1] = Math.max(@preservedRowRange[1], renderedRowRange[1])
+    renderedRowRange
+
+  getInitialState: -> {}
+
+  getDefaultProps: ->
+    cursorBlinkPeriod: 800
+    cursorBlinkResumeDelay: 200
+
+  componentWillMount: ->
+    @pendingChanges = []
+    @props.editor.manageScrollPosition = true
+    @observeConfig()
+
+  componentDidMount: ->
+    @observeEditor()
+    @listenForDOMEvents()
+    @listenForCommands()
+    @props.editor.setVisible(true)
+    @requestUpdate()
+
+  componentWillUnmount: ->
+    @unsubscribe()
+    @getDOMNode().removeEventListener 'mousewheel', @onMouseWheel
+
+  componentWillUpdate: ->
+    @props.parentView.trigger 'cursor:moved' if @cursorsMoved
+
+  componentDidUpdate: ->
+    @pendingChanges.length = 0
+    @cursorsMoved = false
+    @props.parentView.trigger 'editor:display-updated'
+
+  observeEditor: ->
+    {editor} = @props
+    @subscribe editor, 'batched-updates-started', @onBatchedUpdatesStarted
+    @subscribe editor, 'batched-updates-ended', @onBatchedUpdatesEnded
+    @subscribe editor, 'screen-lines-changed', @onScreenLinesChanged
+    @subscribe editor, 'cursors-moved', @onCursorsMoved
+    @subscribe editor, 'selection-screen-range-changed', @requestUpdate
+    @subscribe editor, 'selection-added', @onSelectionAdded
+    @subscribe editor, 'selection-removed', @onSelectionAdded
+    @subscribe editor.$scrollTop.changes, @onScrollTopChanged
+    @subscribe editor.$scrollLeft.changes, @requestUpdate
+    @subscribe editor.$height.changes, @requestUpdate
+    @subscribe editor.$width.changes, @requestUpdate
+    @subscribe editor.$defaultCharWidth.changes, @requestUpdate
+    @subscribe editor.$lineHeight.changes, @requestUpdate
+
+  listenForDOMEvents: ->
+    node = @getDOMNode()
+    node.addEventListener 'mousewheel', @onMouseWheel
+    node.addEventListener 'focus', @onFocus # For some reason, React's built in focus events seem to bubble
+
+  listenForCommands: ->
+    {parentView, editor, mini} = @props
+
+    @addCommandListeners
+      'core:move-left': => editor.moveCursorLeft()
+      'core:move-right': => editor.moveCursorRight()
+      'core:select-left': => editor.selectLeft()
+      'core:select-right': => editor.selectRight()
+      'core:select-all': => editor.selectAll()
+      'core:backspace': => editor.backspace()
+      'core:delete': => editor.delete()
+      'core:undo': => editor.undo()
+      'core:redo': => editor.redo()
+      'core:cut': => editor.cutSelectedText()
+      'core:copy': => editor.copySelectedText()
+      'core:paste': => editor.pasteText()
+      'editor:move-to-previous-word': => editor.moveCursorToPreviousWord()
+      'editor:select-word': => editor.selectWord()
+      'editor:consolidate-selections': @consolidateSelections
+      'editor:backspace-to-beginning-of-word': => editor.backspaceToBeginningOfWord()
+      'editor:backspace-to-beginning-of-line': => editor.backspaceToBeginningOfLine()
+      'editor:delete-to-end-of-word': => editor.deleteToEndOfWord()
+      'editor:delete-line': => editor.deleteLine()
+      'editor:cut-to-end-of-line': => editor.cutToEndOfLine()
+      'editor:move-to-beginning-of-screen-line': => editor.moveCursorToBeginningOfScreenLine()
+      'editor:move-to-beginning-of-line': => editor.moveCursorToBeginningOfLine()
+      'editor:move-to-end-of-screen-line': => editor.moveCursorToEndOfScreenLine()
+      'editor:move-to-end-of-line': => editor.moveCursorToEndOfLine()
+      'editor:move-to-first-character-of-line': => editor.moveCursorToFirstCharacterOfLine()
+      'editor:move-to-beginning-of-word': => editor.moveCursorToBeginningOfWord()
+      'editor:move-to-end-of-word': => editor.moveCursorToEndOfWord()
+      'editor:move-to-beginning-of-next-word': => editor.moveCursorToBeginningOfNextWord()
+      'editor:move-to-previous-word-boundary': => editor.moveCursorToPreviousWordBoundary()
+      'editor:move-to-next-word-boundary': => editor.moveCursorToNextWordBoundary()
+      'editor:select-to-end-of-line': => editor.selectToEndOfLine()
+      'editor:select-to-beginning-of-line': => editor.selectToBeginningOfLine()
+      'editor:select-to-end-of-word': => editor.selectToEndOfWord()
+      'editor:select-to-beginning-of-word': => editor.selectToBeginningOfWord()
+      'editor:select-to-beginning-of-next-word': => editor.selectToBeginningOfNextWord()
+      'editor:select-to-next-word-boundary': => editor.selectToNextWordBoundary()
+      'editor:select-to-previous-word-boundary': => editor.selectToPreviousWordBoundary()
+      'editor:select-to-first-character-of-line': => editor.selectToFirstCharacterOfLine()
+      'editor:select-line': => editor.selectLine()
+      'editor:transpose': => editor.transpose()
+      'editor:upper-case': => editor.upperCase()
+      'editor:lower-case': => editor.lowerCase()
+
+    unless mini
+      @addCommandListeners
+        'core:move-up': => editor.moveCursorUp()
+        'core:move-down': => editor.moveCursorDown()
+        'core:move-to-top': => editor.moveCursorToTop()
+        'core:move-to-bottom': => editor.moveCursorToBottom()
+        'core:select-up': => editor.selectUp()
+        'core:select-down': => editor.selectDown()
+        'core:select-to-top': => editor.selectToTop()
+        'core:select-to-bottom': => editor.selectToBottom()
+        'editor:indent': => editor.indent()
+        'editor:auto-indent': => editor.autoIndentSelectedRows()
+        'editor:indent-selected-rows': => editor.indentSelectedRows()
+        'editor:outdent-selected-rows': => editor.outdentSelectedRows()
+        'editor:newline': => editor.insertNewline()
+        'editor:newline-below': => editor.insertNewlineBelow()
+        'editor:newline-above': => editor.insertNewlineAbove()
+        'editor:add-selection-below': => editor.addSelectionBelow()
+        'editor:add-selection-above': => editor.addSelectionAbove()
+        'editor:split-selections-into-lines': => editor.splitSelectionsIntoLines()
+        'editor:toggle-soft-tabs': => editor.toggleSoftTabs()
+        'editor:toggle-soft-wrap': => editor.toggleSoftWrap()
+        'editor:fold-all': => editor.foldAll()
+        'editor:unfold-all': => editor.unfoldAll()
+        'editor:fold-current-row': => editor.foldCurrentRow()
+        'editor:unfold-current-row': => editor.unfoldCurrentRow()
+        'editor:fold-selection': => neditor.foldSelectedLines()
+        'editor:fold-at-indent-level-1': => editor.foldAllAtIndentLevel(0)
+        'editor:fold-at-indent-level-2': => editor.foldAllAtIndentLevel(1)
+        'editor:fold-at-indent-level-3': => editor.foldAllAtIndentLevel(2)
+        'editor:fold-at-indent-level-4': => editor.foldAllAtIndentLevel(3)
+        'editor:fold-at-indent-level-5': => editor.foldAllAtIndentLevel(4)
+        'editor:fold-at-indent-level-6': => editor.foldAllAtIndentLevel(5)
+        'editor:fold-at-indent-level-7': => editor.foldAllAtIndentLevel(6)
+        'editor:fold-at-indent-level-8': => editor.foldAllAtIndentLevel(7)
+        'editor:fold-at-indent-level-9': => editor.foldAllAtIndentLevel(8)
+        'editor:toggle-line-comments': => editor.toggleLineCommentsInSelection()
+        'editor:log-cursor-scope': => editor.logCursorScope()
+        'editor:checkout-head-revision': => editor.checkoutHead()
+        'editor:copy-path': => editor.copyPathToClipboard()
+        'editor:move-line-up': => editor.moveLineUp()
+        'editor:move-line-down': => editor.moveLineDown()
+        'editor:duplicate-lines': => editor.duplicateLines()
+        'editor:join-lines': => editor.joinLines()
+        'editor:toggle-indent-guide': => atom.config.toggle('editor.showIndentGuide')
+        'editor:toggle-line-numbers': =>  atom.config.toggle('editor.showLineNumbers')
+        'editor:scroll-to-cursor': => editor.scrollToCursorPosition()
+        'core:page-up': => editor.pageUp()
+        'core:page-down': => editor.pageDown()
+
+  addCommandListeners: (listenersByCommandName) ->
+    {parentView} = @props
+
+    for command, listener of listenersByCommandName
+      parentView.command command, listener
+
+  observeConfig: ->
+    @subscribe atom.config.observe 'editor.fontFamily', @setFontFamily
+    @subscribe atom.config.observe 'editor.fontSize', @setFontSize
+    @subscribe atom.config.observe 'editor.showIndentGuide', @setShowIndentGuide
+
+  setFontSize: (fontSize) ->
+    @setState({fontSize})
+
+  setLineHeight: (lineHeight) ->
+    @setState({lineHeight})
+
+  setFontFamily: (fontFamily) ->
+    @setState({fontFamily})
+
+  setShowIndentGuide: (showIndentGuide) ->
+    @setState({showIndentGuide})
+
+  onFocus: ->
+    @refs.scrollView.focus()
+
+  onInputFocused: ->
+    @setState(focused: true)
+
+  onInputBlurred: ->
+    @setState(focused: false)
+
+  onVerticalScroll: (scrollTop) ->
+    {editor} = @props
+
+    return if scrollTop is editor.getScrollTop()
+
+    animationFramePending = @pendingScrollTop?
+    @pendingScrollTop = scrollTop
+    unless animationFramePending
+      requestAnimationFrame =>
+        @props.editor.setScrollTop(@pendingScrollTop)
+        @pendingScrollTop = null
+
+  onHorizontalScroll: (scrollLeft) ->
+    {editor} = @props
+
+    return if scrollLeft is editor.getScrollLeft()
+
+    animationFramePending = @pendingScrollLeft?
+    @pendingScrollLeft = scrollLeft
+    unless animationFramePending
+      requestAnimationFrame =>
+        @props.editor.setScrollLeft(@pendingScrollLeft)
+        @pendingScrollLeft = null
+
+  onMouseWheel: (event) ->
+    # Only scroll in one direction at a time
+    {wheelDeltaX, wheelDeltaY} = event
+    if Math.abs(wheelDeltaX) > Math.abs(wheelDeltaY)
+      @refs.horizontalScrollbar.getDOMNode().scrollLeft -= wheelDeltaX
+    else
+      @refs.verticalScrollbar.getDOMNode().scrollTop -= wheelDeltaY
+
+    event.preventDefault()
+
+  clearPreservedRowRange: ->
+    @preservedRowRange = null
+    @scrollingVertically = false
+    @requestUpdate()
+
+  clearPreservedRowRangeAfterDelay: null # Created lazily
+
+  onBatchedUpdatesStarted: ->
+    @batchingUpdates = true
+
+  onBatchedUpdatesEnded: ->
+    updateRequested = @updateRequested
+    @updateRequested = false
+    @batchingUpdates = false
+    if updateRequested
+      @requestUpdate()
+
+  onScreenLinesChanged: (change) ->
+    {editor} = @props
+    @pendingChanges.push(change)
+    @requestUpdate() if editor.intersectsVisibleRowRange(change.start, change.end + 1) # TODO: Use closed-open intervals for change events
+
+  onSelectionAdded: (selection) ->
+    {editor} = @props
+    @requestUpdate() if editor.selectionIntersectsVisibleRowRange(selection)
+
+  onScrollTopChanged: ->
+    @preservedRowRange = @getRenderedRowRange()
+    @scrollingVertically = true
+    @clearPreservedRowRangeAfterDelay ?= debounce(@clearPreservedRowRange, 200)
+    @clearPreservedRowRangeAfterDelay()
+    @requestUpdate()
+
+  onSelectionRemoved: (selection) ->
+    {editor} = @props
+    @requestUpdate() if editor.selectionIntersectsVisibleRowRange(selection)
+
+  onCursorsMoved: ->
+    @cursorsMoved = true
+
+  requestUpdate: ->
+    if @batchingUpdates
+      @updateRequested = true
+    else
+      @forceUpdate()
+
+  measureHeightAndWidth: ->
+    @refs.scrollView.measureHeightAndWidth()
+
+  consolidateSelections: (e) ->
+    e.abortKeyBinding() unless @props.editor.consolidateSelections()

src/editor-scroll-view-component.coffee

@@ -0,0 +1,198 @@
+React = require 'react'
+{div} = require 'reactionary'
+{debounce} = require 'underscore-plus'
+
+InputComponent = require './input-component'
+LinesComponent = require './lines-component'
+CursorsComponent = require './cursors-component'
+SelectionsComponent = require './selections-component'
+
+module.exports =
+EditorScrollViewComponent = React.createClass
+  displayName: 'EditorScrollViewComponent'
+
+  measurementPending: false
+  overflowChangedEventsPaused: false
+  overflowChangedWhilePaused: false
+
+  render: ->
+    {editor, fontSize, fontFamily, lineHeight, showIndentGuide} = @props
+    {scrollHeight, scrollWidth, renderedRowRange, pendingChanges, scrollingVertically} = @props
+    {cursorBlinkPeriod, cursorBlinkResumeDelay, cursorsMoved, onInputFocused, onInputBlurred} = @props
+
+    if @isMounted()
+      inputStyle = @getHiddenInputPosition()
+      inputStyle.WebkitTransform = 'translateZ(0)'
+
+      contentStyle =
+        height: scrollHeight
+        minWidth: scrollWidth
+        WebkitTransform: "translate3d(#{-editor.getScrollLeft()}px, #{-editor.getScrollTop()}px, 0)"
+
+    div className: 'scroll-view',
+      InputComponent
+        ref: 'input'
+        className: 'hidden-input'
+        style: inputStyle
+        onInput: @onInput
+        onFocus: onInputFocused
+        onBlur: onInputBlurred
+
+      div className: 'scroll-view-content', style: contentStyle, onMouseDown: @onMouseDown,
+        CursorsComponent({editor, cursorsMoved, cursorBlinkPeriod, cursorBlinkResumeDelay})
+        LinesComponent {
+          ref: 'lines', editor, fontSize, fontFamily, lineHeight, showIndentGuide,
+          renderedRowRange, pendingChanges, scrollingVertically
+        }
+        div className: 'underlayer',
+          SelectionsComponent({editor})
+
+  componentDidMount: ->
+    @getDOMNode().addEventListener 'overflowchanged', @onOverflowChanged
+    window.addEventListener('resize', @onWindowResize)
+
+    @measureHeightAndWidth()
+
+  componentDidUnmount: ->
+    window.removeEventListener('resize', @onWindowResize)
+
+  componentDidUpdate: ->
+    @pauseOverflowChangedEvents()
+
+  onOverflowChanged: ->
+    if @overflowChangedEventsPaused
+      @overflowChangedWhilePaused = true
+    else
+      @requestMeasurement()
+
+  onWindowResize: ->
+    @requestMeasurement()
+
+  pauseOverflowChangedEvents: ->
+    @overflowChangedEventsPaused = true
+    @resumeOverflowChangedEventsAfterDelay ?= debounce(@resumeOverflowChangedEvents, 500)
+    @resumeOverflowChangedEventsAfterDelay()
+
+  resumeOverflowChangedEvents: ->
+    if @overflowChangedWhilePaused
+      @overflowChangedWhilePaused = false
+      @requestMeasurement()
+
+  resumeOverflowChangedEventsAfterDelay: null
+
+  requestMeasurement: ->
+    return if @measurementPending
+
+    @measurementPending = true
+    requestAnimationFrame =>
+      @measurementPending = false
+      @measureHeightAndWidth()
+
+  onInput: (char, replaceLastCharacter) ->
+    {editor} = @props
+
+    if replaceLastCharacter
+      editor.transact ->
+        editor.selectLeft()
+        editor.insertText(char)
+    else
+      editor.insertText(char)
+
+  onMouseDown: (event) ->
+    {editor} = @props
+    {detail, shiftKey, metaKey} = event
+    screenPosition = @screenPositionForMouseEvent(event)
+
+    if shiftKey
+      editor.selectToScreenPosition(screenPosition)
+    else if metaKey
+      editor.addCursorAtScreenPosition(screenPosition)
+    else
+      editor.setCursorScreenPosition(screenPosition)
+      switch detail
+        when 2 then editor.selectWord()
+        when 3 then editor.selectLine()
+
+    @selectToMousePositionUntilMouseUp(event)
+
+  selectToMousePositionUntilMouseUp: (event) ->
+    {editor} = @props
+    dragging = false
+    lastMousePosition = {}
+
+    animationLoop = =>
+      requestAnimationFrame =>
+        if dragging
+          @selectToMousePosition(lastMousePosition)
+          animationLoop()
+
+    onMouseMove = (event) ->
+      lastMousePosition.clientX = event.clientX
+      lastMousePosition.clientY = event.clientY
+
+      # Start the animation loop when the mouse moves prior to a mouseup event
+      unless dragging
+        dragging = true
+        animationLoop()
+
+      # Stop dragging when cursor enters dev tools because we can't detect mouseup
+      onMouseUp() if event.which is 0
+
+    onMouseUp = ->
+      dragging = false
+      window.removeEventListener('mousemove', onMouseMove)
+      window.removeEventListener('mouseup', onMouseUp)
+      editor.finalizeSelections()
+
+    window.addEventListener('mousemove', onMouseMove)
+    window.addEventListener('mouseup', onMouseUp)
+
+  selectToMousePosition: (event) ->
+    @props.editor.selectToScreenPosition(@screenPositionForMouseEvent(event))
+
+  screenPositionForMouseEvent: (event) ->
+    pixelPosition = @pixelPositionForMouseEvent(event)
+    @props.editor.screenPositionForPixelPosition(pixelPosition)
+
+  pixelPositionForMouseEvent: (event) ->
+    {editor} = @props
+    {clientX, clientY} = event
+
+    editorClientRect = @getDOMNode().getBoundingClientRect()
+    top = clientY - editorClientRect.top + editor.getScrollTop()
+    left = clientX - editorClientRect.left + editor.getScrollLeft()
+    {top, left}
+
+  getHiddenInputPosition: ->
+    {editor} = @props
+    return {top: 0, left: 0} unless @isMounted() and editor.getCursor()?
+
+    {top, left, height, width} = editor.getCursor().getPixelRect()
+    top = top - editor.getScrollTop()
+    top = Math.max(0, Math.min(editor.getHeight() - height, top))
+    left = left - editor.getScrollLeft()
+    left = Math.max(0, Math.min(editor.getWidth() - width, left))
+
+    {top, left}
+
+  # Measure explicitly-styled height and width and relay them to the model. If
+  # these values aren't explicitly styled, we assume the editor is unconstrained
+  # and use the scrollHeight / scrollWidth as its height and width in
+  # calculations.
+  measureHeightAndWidth: ->
+    return unless @isMounted()
+
+    node = @getDOMNode()
+    computedStyle = getComputedStyle(node)
+    {editor} = @props
+
+    unless computedStyle.height is '0px'
+      clientHeight = node.clientHeight
+      editor.setHeight(clientHeight) if clientHeight > 0
+
+    unless computedStyle.width is '0px'
+      clientWidth = node.clientWidth
+      editor.setWidth(clientWidth) if clientHeight > 0
+
+  focus: ->
+    @refs.input.focus()

src/editor-view.coffee

@@ -20,7 +20,23 @@ LongLineLength = 1000
 # ## Requiring in packages
 #
 # ```coffee
-#   {EditorView} = require 'atom'
+# {EditorView} = require 'atom'
+#
+# miniEditorView = new EditorView(mini: true)
+# ```
+#
+# ## Iterating over the open editor views
+#
+# ```coffee
+# for editorView in atom.workspace.getEditorViews()
+#   console.log(editorView.getEditor().getPath())
+# ```
+#
+# ## Subscribing to every current and future editor
+#
+# ```coffee
+# atom.workspace.eachEditorView (editorView) ->
+#   console.log(editorView.getEditor().getPath())
 # ```
 module.exports =
 class EditorView extends View
@@ -28,12 +44,13 @@ class EditorView extends View
   @configDefaults:
     fontFamily: ''
     fontSize: 16
+    lineHeight: 1.3
     showInvisibles: false
     showIndentGuide: false
     showLineNumbers: true
     autoIndent: true
     normalizeIndentOnPaste: true
-    nonWordCharacters: "./\\()\"':,.;<>~!@#$%^&*|+=[]{}`~?-"
+    nonWordCharacters: "./\\()\"':,.;<>~!@#$%^&*|+=[]{}`?-"
     preferredLineLength: 80
     tabLength: 2
     softWrap: false
@@ -324,6 +341,7 @@ class EditorView extends View
     @subscribe atom.config.observe 'editor.invisibles', (invisibles) => @setInvisibles(invisibles)
     @subscribe atom.config.observe 'editor.fontSize', (fontSize) => @setFontSize(fontSize)
     @subscribe atom.config.observe 'editor.fontFamily', (fontFamily) => @setFontFamily(fontFamily)
+    @subscribe atom.config.observe 'editor.lineHeight', (lineHeight) => @setLineHeight(lineHeight)
 
   handleEvents: ->
     @on 'focus', =>
@@ -403,6 +421,8 @@ class EditorView extends View
     @scrollView.on 'overflowchanged', =>
       updateWidthInChars() if @[0].classList.contains('soft-wrap')
 
+    @subscribe atom.themes, 'stylesheets-changed', => @recalculateDimensions()
+
   handleInputEvents: ->
     @on 'cursor:moved', =>
       return unless @isFocused
@@ -445,20 +465,29 @@ class EditorView extends View
 
   selectOnMousemoveUntilMouseup: ->
     lastMoveEvent = null
+
+    finalizeSelections = =>
+      clearInterval(interval)
+      $(document).off 'mousemove', moveHandler
+      $(document).off 'mouseup', finalizeSelections
+
+      unless @editor.isDestroyed()
+        @editor.mergeIntersectingSelections(isReversed: @editor.getLastSelection().isReversed())
+        @editor.finalizeSelections()
+        @syncCursorAnimations()
+
     moveHandler = (event = lastMoveEvent) =>
-      if event
+      return unless event?
+
+      if event.which is 1 and @[0].style.display isnt 'none'
         @editor.selectToScreenPosition(@screenPositionFromMouseEvent(event))
         lastMoveEvent = event
+      else
+        finalizeSelections()
 
     $(document).on "mousemove.editor-#{@id}", moveHandler
     interval = setInterval(moveHandler, 20)
-
-    $(document).one "mouseup.editor-#{@id}", =>
-      clearInterval(interval)
-      $(document).off 'mousemove', moveHandler
-      @editor.mergeIntersectingSelections(isReversed: @editor.getLastSelection().isReversed())
-      @editor.finalizeSelections()
-      @syncCursorAnimations()
+    $(document).one "mouseup.editor-#{@id}", finalizeSelections
 
   afterAttach: (onDom) ->
     return unless onDom
@@ -498,7 +527,7 @@ class EditorView extends View
 
     if @editor
       @saveScrollPositionForEditor()
-      @editor.off(".editor")
+      @unsubscribe(@editor)
 
     @editor = editor
 
@@ -506,34 +535,34 @@ class EditorView extends View
 
     @editor.setVisible(true)
 
-    @editor.on "destroyed", =>
+    @subscribe @editor, "destroyed", =>
       @remove()
 
-    @editor.on "contents-conflicted.editor", =>
+    @subscribe @editor, "contents-conflicted", =>
       @showBufferConflictAlert(@editor)
 
-    @editor.on "path-changed.editor", =>
+    @subscribe @editor, "path-changed", =>
       @editor.reloadGrammar()
       @trigger 'editor:path-changed'
 
-    @editor.on "grammar-changed.editor", =>
+    @subscribe @editor, "grammar-changed", =>
       @trigger 'editor:grammar-changed'
 
-    @editor.on 'selection-added.editor', (selection) =>
+    @subscribe @editor, 'selection-added', (selection) =>
       @newCursors.push(selection.cursor)
       @newSelections.push(selection)
       @requestDisplayUpdate()
 
-    @editor.on 'screen-lines-changed.editor', (e) =>
+    @subscribe @editor, 'screen-lines-changed', (e) =>
       @handleScreenLinesChange(e)
 
-    @editor.on 'scroll-top-changed.editor', (scrollTop) =>
+    @subscribe @editor, 'scroll-top-changed', (scrollTop) =>
       @scrollTop(scrollTop)
 
-    @editor.on 'scroll-left-changed.editor', (scrollLeft) =>
+    @subscribe @editor, 'scroll-left-changed', (scrollLeft) =>
       @scrollLeft(scrollLeft)
 
-    @editor.on 'soft-wrap-changed.editor', (softWrap) =>
+    @subscribe @editor, 'soft-wrap-changed', (softWrap) =>
       @setSoftWrap(softWrap)
 
     @trigger 'editor:path-changed'
@@ -720,6 +749,17 @@ class EditorView extends View
   # Returns a {String} identifying the CSS `font-family`.
   getFontFamily: -> @css("font-family")
 
+  # Public: Sets the line height of the editor.
+  #
+  # Calling this method has no effect when called on a mini editor.
+  #
+  # lineHeight - A {Number} without a unit suffix identifying the CSS
+  # `line-height`.
+  setLineHeight: (lineHeight) ->
+    return if @mini
+    @css('line-height', lineHeight)
+    @redraw()
+
   # Public: Redraw the editor
   redraw: ->
     return unless @hasParent()
@@ -857,7 +897,19 @@ class EditorView extends View
     fragment.remove()
     @setHeightInLines()
 
-  updateLayerDimensions: ->
+  recalculateDimensions: ->
+    return unless @attached and @isVisible()
+
+    oldCharWidth = @charWidth
+    oldLineHeight = @lineHeight
+
+    @calculateDimensions()
+
+    unless @charWidth is oldCharWidth and @lineHeight is oldLineHeight
+      @clearCharacterWidthCache()
+      @requestDisplayUpdate()
+
+  updateLayerDimensions: (scrollViewWidth) ->
     height = @lineHeight * @editor.getScreenLineCount()
     unless @layerHeight == height
       @layerHeight = height
@@ -867,7 +919,7 @@ class EditorView extends View
       @verticalScrollbarContent.height(@layerHeight)
       @scrollBottom(height) if @scrollBottom() > height
 
-    minWidth = Math.max(@charWidth * @editor.getMaxScreenLineLength() + 20, @scrollView.width())
+    minWidth = Math.max(@charWidth * @editor.getMaxScreenLineLength() + 20, scrollViewWidth)
     unless @layerMinWidth == minWidth
       @renderedLines.css('min-width', minWidth)
       @underlayer.css('min-width', minWidth)
@@ -901,7 +953,7 @@ class EditorView extends View
     @setSoftWrap(@editor.getSoftWrap())
     @newCursors = @editor.getCursors()
     @newSelections = @editor.getSelections()
-    @updateDisplay(suppressAutoScroll: true)
+    @updateDisplay(suppressAutoscroll: true)
 
   requestDisplayUpdate: ->
     return if @pendingDisplayUpdate
@@ -911,19 +963,20 @@ class EditorView extends View
       @updateDisplay()
       @pendingDisplayUpdate = false
 
-  updateDisplay: (options={}) ->
+  updateDisplay: (options) ->
     return unless @attached and @editor
     return if @editor.isDestroyed()
     unless @isOnDom() and @isVisible()
       @redrawOnReattach = true
       return
 
-    @updateRenderedLines()
+    scrollViewWidth = @scrollView.width()
+    @updateRenderedLines(scrollViewWidth)
     @updatePlaceholderText()
     @highlightCursorLine()
     @updateCursorViews()
     @updateSelectionViews()
-    @autoscroll(options)
+    @autoscroll(options?.suppressAutoscroll ? false)
     @trigger 'editor:display-updated'
 
   updateCursorViews: ->
@@ -964,17 +1017,16 @@ class EditorView extends View
       (startRow <= @firstRenderedScreenRow and endRow >= @lastRenderedScreenRow) # selection surrounds the rendered items
 
   syncCursorAnimations: ->
-    for cursorView in @getCursorViews()
-      do (cursorView) -> cursorView.resetBlinking()
+    cursorView.resetBlinking() for cursorView in @getCursorViews()
 
-  autoscroll: (options={}) ->
+  autoscroll: (suppressAutoscroll) ->
     for cursorView in @getCursorViews()
-      if !options.suppressAutoScroll and cursorView.needsAutoscroll()
+      if !suppressAutoscroll and cursorView.needsAutoscroll()
         @scrollToPixelPosition(cursorView.getPixelPosition())
       cursorView.clearAutoscroll()
 
     for selectionView in @getSelectionViews()
-      if !options.suppressAutoScroll and selectionView.needsAutoscroll()
+      if !suppressAutoscroll and selectionView.needsAutoscroll()
         @scrollToPixelPosition(selectionView.getCenterPixelPosition(), center: true)
         selectionView.highlight()
       selectionView.clearAutoscroll()
@@ -990,7 +1042,7 @@ class EditorView extends View
       else
         @underlayer.append($('<span/>', class: 'placeholder-text', text: @placeholderText))
 
-  updateRenderedLines: ->
+  updateRenderedLines: (scrollViewWidth) ->
     firstVisibleScreenRow = @getFirstVisibleScreenRow()
     lastScreenRowToRender = firstVisibleScreenRow + @heightInLines - 1
     lastScreenRow = @editor.getLastScreenRow()
@@ -1014,7 +1066,7 @@ class EditorView extends View
     @fillDirtyRanges(intactRanges, renderFrom, renderTo)
     @firstRenderedScreenRow = renderFrom
     @lastRenderedScreenRow = renderTo
-    @updateLayerDimensions()
+    @updateLayerDimensions(scrollViewWidth)
     @updatePaddingOfRenderedLines()
 
   computeSurroundingEmptyLineChanges: (change) ->
@@ -1285,14 +1337,17 @@ class EditorView extends View
     return 0 if screenColumn == 0
 
     tokenizedLine = @editor.displayBuffer.lineForRow(screenRow)
+    textContent = lineElement.textContent
 
     left = 0
     index = 0
     for token in tokenizedLine.tokens
-      for char in token.value
+      for bufferChar in token.value
         return left if index >= screenColumn
 
-        val = @getCharacterWidthCache(token.scopes, char)
+        # Invisibles might cause renderedChar to be different than bufferChar
+        renderedChar = textContent[index]
+        val = @getCharacterWidthCache(token.scopes, renderedChar)
         if val?
           left += val
         else
@@ -1427,16 +1482,13 @@ class EditorView extends View
       html = @buildEmptyLineHtml(showIndentGuide, eolInvisibles, htmlEolInvisibles, indentation, editor, mini)
       line.push(html) if html
     else
-      firstNonWhitespacePosition = text.search(/\S/)
       firstTrailingWhitespacePosition = text.search(/\s*$/)
       lineIsWhitespaceOnly = firstTrailingWhitespacePosition is 0
       position = 0
       for token in tokens
         @updateScopeStack(line, scopeStack, token.scopes)
-        hasLeadingWhitespace =  position < firstNonWhitespacePosition
-        hasTrailingWhitespace = position + token.value.length > firstTrailingWhitespacePosition
-        hasIndentGuide = not mini and showIndentGuide and (hasLeadingWhitespace or lineIsWhitespaceOnly)
-        line.push(token.getValueAsHtml({invisibles, hasLeadingWhitespace, hasTrailingWhitespace, hasIndentGuide}))
+        hasIndentGuide = not mini and showIndentGuide and token.hasLeadingWhitespace or (token.hasTrailingWhitespace and lineIsWhitespaceOnly)
+        line.push(token.getValueAsHtml({invisibles, hasIndentGuide}))
         position += token.value.length
 
     @popScope(line, scopeStack) while scopeStack.length > 0
@@ -1464,7 +1516,7 @@ class EditorView extends View
 
   @pushScope: (line, scopeStack, scope) ->
     scopeStack.push(scope)
-    line.push("<span class=\"#{scope.replace(/\./g, ' ')}\">")
+    line.push("<span class=\"#{scope.replace(/\.+/g, ' ')}\">")
 
   @popScope: (line, scopeStack) ->
     scopeStack.pop()

src/editor.coffee

@@ -2,6 +2,7 @@ _ = require 'underscore-plus'
 path = require 'path'
 Serializable = require 'serializable'
 Delegator = require 'delegato'
+{deprecate} = require 'grim'
 {Model} = require 'theorist'
 {Point, Range} = require 'text-buffer'
 LanguageMode = require './language-mode'
@@ -135,10 +136,6 @@ class Editor extends Model
   atom.deserializers.add(this)
   Delegator.includeInto(this)
 
-  @properties
-    scrollTop: 0
-    scrollLeft: 0
-
   deserializing: false
   callDisplayBufferCreatedHook: false
   registerEditor: false
@@ -152,6 +149,9 @@ class Editor extends Model
     'autoDecreaseIndentForBufferRow', 'toggleLineCommentForBufferRow', 'toggleLineCommentsForBufferRows',
     toProperty: 'languageMode'
 
+  @delegatesProperties '$lineHeight', '$defaultCharWidth', '$height', '$width',
+    '$scrollTop', '$scrollLeft', 'manageScrollPosition', toProperty: 'displayBuffer'
+
   constructor: ({@softTabs, initialLine, tabLength, softWrap, @displayBuffer, buffer, registerEditor, suppressCursorCreation}) ->
     super
 
@@ -181,7 +181,7 @@ class Editor extends Model
     @subscribe @$scrollTop, (scrollTop) => @emit 'scroll-top-changed', scrollTop
     @subscribe @$scrollLeft, (scrollLeft) => @emit 'scroll-left-changed', scrollLeft
 
-    atom.project.addEditor(this) if registerEditor
+    atom.workspace?.editorAdded(this) if registerEditor
 
   serializeParams: ->
     id: @id
@@ -216,7 +216,10 @@ class Editor extends Model
     @subscribe @displayBuffer, 'soft-wrap-changed', (args...) => @emit 'soft-wrap-changed', args...
 
   getViewClass: ->
-    require './editor-view'
+    if atom.config.get('core.useReactEditor')
+      require './react-editor-view'
+    else
+      require './editor-view'
 
   destroyed: ->
     @unsubscribe()
@@ -224,19 +227,15 @@ class Editor extends Model
     @buffer.release()
     @displayBuffer.destroy()
     @languageMode.destroy()
-    atom.project?.removeEditor(this)
 
   # Create an {Editor} with its initial state based on this object
   copy: ->
     tabLength = @getTabLength()
     displayBuffer = @displayBuffer.copy()
     softTabs = @getSoftTabs()
-    newEditor = new Editor({@buffer, displayBuffer, tabLength, softTabs, suppressCursorCreation: true})
-    newEditor.setScrollTop(@getScrollTop())
-    newEditor.setScrollLeft(@getScrollLeft())
+    newEditor = new Editor({@buffer, displayBuffer, tabLength, softTabs, suppressCursorCreation: true, registerEditor: true})
     for marker in @findMarkers(editorId: @id)
       marker.copy(editorId: newEditor.id, preserveFolds: true)
-    atom.project.addEditor(newEditor)
     newEditor
 
   # Public: Get the title the editor's title for display in other parts of the
@@ -270,18 +269,6 @@ class Editor extends Model
   # Controls visiblity based on the given {Boolean}.
   setVisible: (visible) -> @displayBuffer.setVisible(visible)
 
-  # Called by {EditorView} when the scroll position changes so it can be
-  # persisted across reloads.
-  setScrollTop: (@scrollTop) -> @scrollTop
-
-  getScrollTop: -> @scrollTop
-
-  # Called by {EditorView} when the scroll position changes so it can be
-  # persisted across reloads.
-  setScrollLeft: (@scrollLeft) -> @scrollLeft
-
-  getScrollLeft: -> @scrollLeft
-
   # Set the number of characters that can be displayed horizontally in the
   # editor.
   #
@@ -302,6 +289,9 @@ class Editor extends Model
   # softTabs - A {Boolean}
   setSoftTabs: (@softTabs) -> @softTabs
 
+  # Public: Toggle soft tabs for this editor
+  toggleSoftTabs: -> @setSoftTabs(not @getSoftTabs())
+
   # Public: Get whether soft wrap is enabled for this editor.
   getSoftWrap: -> @displayBuffer.getSoftWrap()
 
@@ -310,6 +300,9 @@ class Editor extends Model
   # softWrap - A {Boolean}
   setSoftWrap: (softWrap) -> @displayBuffer.setSoftWrap(softWrap)
 
+  # Public: Toggle soft wrap for this editor
+  toggleSoftWrap: -> @setSoftWrap(not @getSoftWrap())
+
   # Public: Get the text representing a single level of indent.
   #
   # If soft tabs are enabled, the text is composed of N spaces, where N is the
@@ -373,10 +366,16 @@ class Editor extends Model
   #
   # bufferRow - A {Number} indicating the buffer row.
   # newLevel - A {Number} indicating the new indentation level.
-  setIndentationForBufferRow: (bufferRow, newLevel) ->
-    currentIndentLength = @lineForBufferRow(bufferRow).match(/^\s*/)[0].length
+  # options - An {Object} with the following keys:
+  #   :preserveLeadingWhitespace - true to preserve any whitespace already at
+  #                                the beginning of the line (default: false).
+  setIndentationForBufferRow: (bufferRow, newLevel, {preserveLeadingWhitespace}={}) ->
+    if preserveLeadingWhitespace
+      endColumn = 0
+    else
+      endColumn = @lineForBufferRow(bufferRow).match(/^\s*/)[0].length
     newIndentString = @buildIndentString(newLevel)
-    @buffer.change([[bufferRow, 0], [bufferRow, currentIndentLength]], newIndentString)
+    @buffer.setTextInRange([[bufferRow, 0], [bufferRow, endColumn]], newIndentString)
 
   # Public: Get the indentation level of the given line of text.
   #
@@ -389,28 +388,37 @@ class Editor extends Model
   #
   # Returns a {Number}.
   indentLevelForLine: (line) ->
-    if match = line.match(/^[\t ]+/)
-      leadingWhitespace = match[0]
-      tabCount = leadingWhitespace.match(/\t/g)?.length ? 0
-      spaceCount = leadingWhitespace.match(/[ ]/g)?.length ? 0
-      tabCount + (spaceCount / @getTabLength())
-    else
-      0
+    @displayBuffer.indentLevelForLine(line)
 
   # Constructs the string used for tabs.
   buildIndentString: (number) ->
     if @getSoftTabs()
-      _.multiplyString(" ", number * @getTabLength())
+      _.multiplyString(" ", Math.floor(number * @getTabLength()))
     else
       _.multiplyString("\t", Math.floor(number))
 
-  # {Delegates to: TextBuffer.save}
+  # Public: Saves the editor's text buffer.
+  #
+  # See {TextBuffer::save} for more details.
   save: -> @buffer.save()
 
-  # {Delegates to: TextBuffer.saveAs}
-  saveAs: (path) -> @buffer.saveAs(path)
+  # Public: Saves the editor's text buffer as the given path.
+  #
+  # See {TextBuffer::saveAs} for more details.
+  #
+  # filePath - A {String} path.
+  saveAs: (filePath) -> @buffer.saveAs(filePath)
 
-  # {Delegates to: TextBuffer.getPath}
+  checkoutHead: ->
+    if filePath = @getPath()
+      atom.project.getRepo()?.checkoutHead(filePath)
+
+  # Copies the current file path to the native clipboard.
+  copyPathToClipboard: ->
+    if filePath = @getPath()
+      atom.clipboard.write(filePath)
+
+  # Public: Returns the {String} path of this editor's text buffer.
   getPath: -> @buffer.getPath()
 
   # Public: Returns a {String} representing the entire contents of the editor.
@@ -445,8 +453,8 @@ class Editor extends Model
   # {Delegates to: TextBuffer.nextNonBlankRow}
   nextNonBlankBufferRow: (bufferRow) -> @buffer.nextNonBlankRow(bufferRow)
 
-  # {Delegates to: TextBuffer.getEofPosition}
-  getEofBufferPosition: -> @buffer.getEofPosition()
+  # {Delegates to: TextBuffer.getEndPosition}
+  getEofBufferPosition: -> @buffer.getEndPosition()
 
   # Public: Returns a {Number} representing the last zero-indexed buffer row
   # number of the editor.
@@ -588,6 +596,9 @@ class Editor extends Model
   # Returns an {Array} of {String}s.
   getCursorScopes: -> @getCursor().getScopes()
 
+  logCursorScope: ->
+    console.log @getCursorScopes()
+
   # Public: For each selection, replace the selected text with the given text.
   #
   # text - A {String} representing the text to insert.
@@ -610,11 +621,20 @@ class Editor extends Model
   # Public: For each cursor, insert a newline at the end of the preceding line.
   insertNewlineAbove: ->
     @transact =>
-      onFirstLine = @getCursorBufferPosition().row is 0
+      bufferRow = @getCursorBufferPosition().row
+      indentLevel = @indentationForBufferRow(bufferRow)
+      onFirstLine = bufferRow is 0
+
       @moveCursorToBeginningOfLine()
       @moveCursorLeft()
       @insertNewline()
-      @moveCursorUp() if onFirstLine
+
+      if @shouldAutoIndent() and @indentationForBufferRow(bufferRow) < indentLevel
+        @setIndentationForBufferRow(bufferRow, indentLevel)
+
+      if onFirstLine
+        @moveCursorUp()
+        @moveCursorToEndOfLine()
 
   # Indent all lines intersecting selections. See {Selection::indent} for more
   # information.
@@ -679,7 +699,7 @@ class Editor extends Model
   # {Range}.
   normalizeTabsInBufferRange: (bufferRange) ->
     return unless @getSoftTabs()
-    @scanInBufferRange /\t/, bufferRange, ({replace}) => replace(@getTabText())
+    @scanInBufferRange /\t/g, bufferRange, ({replace}) => replace(@getTabText())
 
   # Public: For each selection, if the selection is empty, cut all characters
   # of the containing line following the cursor. Otherwise cut the selected
@@ -893,7 +913,7 @@ class Editor extends Model
       for foldedRow in foldedRows when 0 <= foldedRow <= @getLastBufferRow()
         @foldBufferRow(foldedRow)
 
-      @setSelectedBufferRange(selection.translate([-insertDelta]), preserveFolds: true)
+      @setSelectedBufferRange(selection.translate([-insertDelta]), preserveFolds: true, autoscroll: true)
 
   # Move lines intersecting the most recent selection down by one row in screen
   # coordinates.
@@ -949,7 +969,7 @@ class Editor extends Model
       for foldedRow in foldedRows when 0 <= foldedRow <= @getLastBufferRow()
         @foldBufferRow(foldedRow)
 
-      @setSelectedBufferRange(selection.translate([insertDelta]), preserveFolds: true)
+      @setSelectedBufferRange(selection.translate([insertDelta]), preserveFolds: true, autoscroll: true)
 
   # Duplicate the most recent cursor's current line.
   duplicateLines: ->
@@ -979,8 +999,15 @@ class Editor extends Model
 
   # Deprecated: Use {::duplicateLines} instead.
   duplicateLine: ->
+    deprecate("Use Editor::duplicateLines() instead")
     @duplicateLines()
 
+  # Public: Mutate the text of all the selections in a single transaction.
+  #
+  # All the changes made inside the given {Function} can be reverted with a
+  # single call to {::undo}.
+  #
+  # fn - A {Function} that will be called with each {Selection}.
   mutateSelectedText: (fn) ->
     @transact => fn(selection) for selection in @getSelections()
 
@@ -1151,6 +1178,16 @@ class Editor extends Model
   setSelectedBufferRange: (bufferRange, options) ->
     @setSelectedBufferRanges([bufferRange], options)
 
+  # Public: Set the selected range in screen coordinates. If there are multiple
+  # selections, they are reduced to a single selection with the given range.
+  #
+  # screenRange - A {Range} or range-compatible {Array}.
+  # options - An options {Object}:
+  #   :reversed - A {Boolean} indicating whether to create the selection in a
+  #     reversed orientation.
+  setSelectedScreenRange: (screenRange, options) ->
+    @setSelectedBufferRange(@bufferRangeForScreenRange(screenRange, options), options)
+
   # Public: Set the selected ranges in buffer coordinates. If there are multiple
   # selections, they are replaced by new selections with the given ranges.
   #
@@ -1175,6 +1212,7 @@ class Editor extends Model
   # Remove the given selection.
   removeSelection: (selection) ->
     _.remove(@selections, selection)
+    @emit 'selection-removed', selection
 
   # Reduce one or more selections to a single empty selection based on the most
   # recently added cursor.
@@ -1191,6 +1229,9 @@ class Editor extends Model
     else
       false
 
+  selectionScreenRangeChanged: (selection) ->
+    @emit 'selection-screen-range-changed', selection
+
   # Public: Get current {Selection}s.
   #
   # Returns: An {Array} of {Selection}s.
@@ -1301,6 +1342,14 @@ class Editor extends Model
   getSelectedBufferRanges: ->
     selection.getBufferRange() for selection in @getSelectionsOrderedByBufferPosition()
 
+  # Public: Get the {Range}s of all selections in screen coordinates.
+  #
+  # The ranges are sorted by their position in the buffer.
+  #
+  # Returns an {Array} of {Range}s.
+  getSelectedScreenRanges: ->
+    selection.getScreenRange() for selection in @getSelectionsOrderedByBufferPosition()
+
   # Public: Get the selected text of the most recently added selection.
   #
   # Returns a {String}.
@@ -1321,7 +1370,7 @@ class Editor extends Model
   # text - A {String}
   #
   # Returns the {Range} of the newly-inserted text.
-  setTextInBufferRange: (range, text) -> @getBuffer().change(range, text)
+  setTextInBufferRange: (range, text) -> @getBuffer().setTextInRange(range, text)
 
   # Public: Get the {Range} of the paragraph surrounding the most recently added
   # cursor.
@@ -1404,9 +1453,26 @@ class Editor extends Model
   moveCursorToNextWordBoundary: ->
     @moveCursors (cursor) -> cursor.moveToNextWordBoundary()
 
+  scrollToCursorPosition: ->
+    @getCursor().autoscroll()
+
+  pageUp: ->
+    @setScrollTop(@getScrollTop() - @getHeight())
+
+  pageDown: ->
+    @setScrollTop(@getScrollTop() + @getHeight())
+
   moveCursors: (fn) ->
-    fn(cursor) for cursor in @getCursors()
-    @mergeCursors()
+    @movingCursors = true
+    @batchUpdates =>
+      fn(cursor) for cursor in @getCursors()
+      @mergeCursors()
+      @movingCursors = false
+      @emit 'cursors-moved'
+
+  cursorMoved: (event) ->
+    @emit 'cursor-moved', event
+    @emit 'cursors-moved' unless @movingCursors
 
   # Public: Select from the current cursor position to the given position in
   # screen coordinates.
@@ -1708,7 +1774,9 @@ class Editor extends Model
   # execution and revert any changes performed up to the abortion.
   #
   # fn - A {Function} to call inside the transaction.
-  transact: (fn) -> @buffer.transact(fn)
+  transact: (fn) ->
+    @batchUpdates =>
+      @buffer.transact(fn)
 
   # Public: Start an open-ended transaction.
   #
@@ -1728,6 +1796,12 @@ class Editor extends Model
   # within the transaction.
   abortTransaction: -> @buffer.abortTransaction()
 
+  batchUpdates: (fn) ->
+    @emit 'batched-updates-started'
+    result = fn()
+    @emit 'batched-updates-ended'
+    result
+
   inspect: ->
     "<Editor #{@id}>"
 
@@ -1744,6 +1818,67 @@ class Editor extends Model
   getSelectionMarkerAttributes: ->
     type: 'selection', editorId: @id, invalidate: 'never'
 
+  getVerticalScrollMargin: -> @displayBuffer.getVerticalScrollMargin()
+  setVerticalScrollMargin: (verticalScrollMargin) -> @displayBuffer.setVerticalScrollMargin(verticalScrollMargin)
+
+  getHorizontalScrollMargin: -> @displayBuffer.getHorizontalScrollMargin()
+  setHorizontalScrollMargin: (horizontalScrollMargin) -> @displayBuffer.setHorizontalScrollMargin(horizontalScrollMargin)
+
+  getLineHeight: -> @displayBuffer.getLineHeight()
+  setLineHeight: (lineHeight) -> @displayBuffer.setLineHeight(lineHeight)
+
+  getScopedCharWidth: (scopeNames, char) -> @displayBuffer.getScopedCharWidth(scopeNames, char)
+  setScopedCharWidth: (scopeNames, char, width) -> @displayBuffer.setScopedCharWidth(scopeNames, char, width)
+
+  getScopedCharWidths: (scopeNames) -> @displayBuffer.getScopedCharWidths(scopeNames)
+
+  clearScopedCharWidths: -> @displayBuffer.clearScopedCharWidths()
+
+  getDefaultCharWidth: -> @displayBuffer.getDefaultCharWidth()
+  setDefaultCharWidth: (defaultCharWidth) -> @displayBuffer.setDefaultCharWidth(defaultCharWidth)
+
+  setHeight: (height) -> @displayBuffer.setHeight(height)
+  getHeight: -> @displayBuffer.getHeight()
+
+  setWidth: (width) -> @displayBuffer.setWidth(width)
+  getWidth: -> @displayBuffer.getWidth()
+
+  getScrollTop: -> @displayBuffer.getScrollTop()
+  setScrollTop: (scrollTop) -> @displayBuffer.setScrollTop(scrollTop)
+
+  getScrollBottom: -> @displayBuffer.getScrollBottom()
+  setScrollBottom: (scrollBottom) -> @displayBuffer.setScrollBottom(scrollBottom)
+
+  getScrollLeft: -> @displayBuffer.getScrollLeft()
+  setScrollLeft: (scrollLeft) -> @displayBuffer.setScrollLeft(scrollLeft)
+
+  getScrollRight: -> @displayBuffer.getScrollRight()
+  setScrollRight: (scrollRight) -> @displayBuffer.setScrollRight(scrollRight)
+
+  getScrollHeight: -> @displayBuffer.getScrollHeight()
+  getScrollWidth: (scrollWidth) -> @displayBuffer.getScrollWidth(scrollWidth)
+
+  getVisibleRowRange: -> @displayBuffer.getVisibleRowRange()
+
+  intersectsVisibleRowRange: (startRow, endRow) -> @displayBuffer.intersectsVisibleRowRange(startRow, endRow)
+
+  selectionIntersectsVisibleRowRange: (selection) -> @displayBuffer.selectionIntersectsVisibleRowRange(selection)
+
+  pixelPositionForScreenPosition: (screenPosition) -> @displayBuffer.pixelPositionForScreenPosition(screenPosition)
+
+  pixelPositionForBufferPosition: (bufferPosition) -> @displayBuffer.pixelPositionForBufferPosition(bufferPosition)
+
+  screenPositionForPixelPosition: (pixelPosition) -> @displayBuffer.screenPositionForPixelPosition(pixelPosition)
+
+  pixelRectForScreenRange: (screenRange) -> @displayBuffer.pixelRectForScreenRange(screenRange)
+
+  scrollToScreenRange: (screenRange) -> @displayBuffer.scrollToScreenRange(screenRange)
+
+  scrollToScreenPosition: (screenPosition) -> @displayBuffer.scrollToScreenPosition(screenPosition)
+
+  scrollToBufferPosition: (bufferPosition) -> @displayBuffer.scrollToBufferPosition(bufferPosition)
+
   # Deprecated: Call {::joinLines} instead.
   joinLine: ->
+    deprecate("Use Editor::joinLines() instead")
     @joinLines()

src/git.coffee

@@ -1,15 +1,30 @@
+{join, sep} = require 'path'
+
 _ = require 'underscore-plus'
-fs = require 'fs-plus'
-Task = require './task'
 {Emitter, Subscriber} = require 'emissary'
+fs = require 'fs-plus'
 GitUtils = require 'git-utils'
 
+Task = require './task'
+
 # Public: Represents the underlying git operations performed by Atom.
 #
 # This class shouldn't be instantiated directly but instead by accessing the
 # `atom.project` global and calling `getRepo()`. Note that this will only be
 # available when the project is backed by a Git repository.
 #
+# This class handles submodules automically by taking a `path` argument to many
+# of the methods.  This `path` argument will determine which underlying
+# repository is used.
+#
+# For a repository with submodules this would have the following outcome:
+#
+# ```coffee
+# repo = atom.project.getRepo()
+# repo.getShortHead() # 'master'
+# repo.getShortHead('vendor/path/to/a/submodule') # 'dead1234'
+# ```
+#
 # ## Example
 #
 # ```coffeescript
@@ -56,6 +71,9 @@ class Git
 
     @statuses = {}
     @upstream = {ahead: 0, behind: 0}
+    for submodulePath, submoduleRepo of @repo.submodules
+      submoduleRepo.upstream = {ahead: 0, behind: 0}
+
     {@project, refreshOnWindowFocus} = options
 
     refreshOnWindowFocus ?= true
@@ -89,10 +107,11 @@ class Git
     @unsubscribe()
 
   # Returns the corresponding {Repository}
-  getRepo: ->
-    unless @repo?
+  getRepo: (path) ->
+    if @repo?
+      @repo.submoduleForPath(path) ? @repo
+    else
       throw new Error("Repository has been destroyed")
-    @repo
 
   # Reread the index to update any values that have changed since the
   # last time the index was read.
@@ -112,12 +131,14 @@ class Git
   # Returns a {Number} representing the status. This value can be passed to
   # {::isStatusModified} or {::isStatusNew} to get more information.
   getPathStatus: (path) ->
-    currentPathStatus = @statuses[path] ? 0
-    pathStatus = @getRepo().getStatus(@relativize(path)) ? 0
+    repo = @getRepo(path)
+    relativePath = @relativize(path)
+    currentPathStatus = @statuses[relativePath] ? 0
+    pathStatus = repo.getStatus(repo.relativize(path)) ? 0
     if pathStatus > 0
-      @statuses[path] = pathStatus
+      @statuses[relativePath] = pathStatus
     else
-      delete @statuses[path]
+      delete @statuses[relativePath]
     if currentPathStatus isnt pathStatus
       @emit 'status-changed', path, pathStatus
     pathStatus
@@ -153,8 +174,11 @@ class Git
   # `refs/remotes`.  It also shortens the SHA-1 of a detached `HEAD` to 7
   # characters.
   #
+  # path - An optional {String} path in the repository to get this information
+  #        for, only needed if the repository contains submodules.
+  #
   # Returns a {String}.
-  getShortHead: -> @getRepo().getShortHead()
+  getShortHead: (path) -> @getRepo(path).getShortHead()
 
   # Public: Restore the contents of a path in the working directory and index
   # to the version at `HEAD`.
@@ -170,7 +194,8 @@ class Git
   #
   # Returns a {Boolean} that's true if the method was successful.
   checkoutHead: (path) ->
-    headCheckedOut = @getRepo().checkoutHead(@relativize(path))
+    repo = @getRepo(path)
+    headCheckedOut = repo.checkoutHead(repo.relativize(path))
     @getPathStatus(path) if headCheckedOut
     headCheckedOut
 
@@ -194,14 +219,24 @@ class Git
   # Returns an {Object} with the following keys:
   #   :added - The {Number} of added lines.
   #   :deleted - The {Number} of deleted lines.
-  getDiffStats: (path) -> @getRepo().getDiffStats(@relativize(path))
+  getDiffStats: (path) ->
+    repo = @getRepo(path)
+    repo.getDiffStats(repo.relativize(path))
 
   # Public: Is the given path a submodule in the repository?
   #
   # path - The {String} path to check.
   #
   # Returns a {Boolean}.
-  isSubmodule: (path) -> @getRepo().isSubmodule(@relativize(path))
+  isSubmodule: (path) ->
+    return false unless path
+
+    repo = @getRepo(path)
+    if repo.isSubmodule(repo.relativize(path))
+      true
+    else
+      # Check if the path is a working directory in a repo that isn't the root.
+      repo isnt @getRepo() and repo.relativize(join(path, 'dir')) is 'dir'
 
   # Public: Get the status of a directory in the repository's working directory.
   #
@@ -210,8 +245,7 @@ class Git
   # Returns a {Number} representing the status. This value can be passed to
   # {::isStatusModified} or {::isStatusNew} to get more information.
   getDirectoryStatus: (directoryPath)  ->
-    {sep} = require 'path'
-    directoryPath = "#{directoryPath}#{sep}"
+    directoryPath = "#{@relativize(directoryPath)}#{sep}"
     directoryStatus = 0
     for path, status of @statuses
       directoryStatus |= status if path.indexOf(directoryPath) is 0
@@ -232,34 +266,77 @@ class Git
     # Ignore eol of line differences on windows so that files checked in as
     # LF don't report every line modified when the text contains CRLF endings.
     options = ignoreEolWhitespace: process.platform is 'win32'
-    @getRepo().getLineDiffs(@relativize(path), text, options)
+    repo = @getRepo(path)
+    repo.getLineDiffs(repo.relativize(path), text, options)
 
   # Public: Returns the git configuration value specified by the key.
-  getConfigValue: (key) -> @getRepo().getConfigValue(key)
+  #
+  # path - An optional {String} path in the repository to get this information
+  #        for, only needed if the repository has submodules.
+  getConfigValue: (key, path) -> @getRepo(path).getConfigValue(key)
 
   # Public: Returns the origin url of the repository.
-  getOriginUrl: -> @getConfigValue('remote.origin.url')
+  #
+  # path - An optional {String} path in the repository to get this information
+  #        for, only needed if the repository has submodules.
+  getOriginUrl: (path) -> @getConfigValue('remote.origin.url', path)
 
   # Public: Returns the upstream branch for the current HEAD, or null if there
   # is no upstream branch for the current HEAD.
   #
+  # path - An optional {String} path in the repo to get this information for,
+  #        only needed if the repository contains submodules.
+  #
   # Returns a {String} branch name such as `refs/remotes/origin/master`.
-  getUpstreamBranch: -> @getRepo().getUpstreamBranch()
+  getUpstreamBranch: (path) -> @getRepo(path).getUpstreamBranch()
 
   # Public: Returns the current SHA for the given reference.
-  getReferenceTarget: (reference) -> @getRepo().getReferenceTarget(reference)
+  #
+  # reference - The {String} reference to get the target of.
+  # path - An optional {String} path in the repo to get the reference target
+  #        for. Only needed if the repository contains submodules.
+  getReferenceTarget: (reference, path) ->
+    @getRepo(path).getReferenceTarget(reference)
 
   # Public: Gets all the local and remote references.
   #
+  # path - An optional {String} path in the repository to get this information
+  #        for, only needed if the repository has submodules.
+  #
   # Returns an {Object} with the following keys:
   #  :heads - An {Array} of head reference names.
   #  :remotes - An {Array} of remote reference names.
   #  :tags - An {Array} of tag reference names.
-  getReferences: -> @getRepo().getReferences()
+  getReferences: (path) -> @getRepo(path).getReferences()
 
   # Public: Returns the number of commits behind the current branch is from the
   # its upstream remote branch.
-  getAheadBehindCount: (reference) -> @getRepo().getAheadBehindCount(reference)
+  #
+  # reference - The {String} branch reference name.
+  # path      - The {String} path in the repository to get this information for,
+  #             only needed if the repository contains submodules.
+  getAheadBehindCount: (reference, path) ->
+    @getRepo(path).getAheadBehindCount(reference)
+
+  # Public: Get the cached ahead/behind commit counts for the current branch's
+  # upstream branch.
+  #
+  # path - An optional {String} path in the repository to get this information
+  #        for, only needed if the repository has submodules.
+  #
+  # Returns an {Object} with the following keys:
+  #   :ahead  - The {Number} of commits ahead.
+  #   :behind - The {Number} of commits behind.
+  getCachedUpstreamAheadBehindCount: (path) ->
+    @getRepo(path).upstream ? @upstream
+
+  # Public: Get the cached status for the given path.
+  #
+  # path - A {String} path in the repository, relative or absolute.
+  #
+  # Returns a status {Number} or null if the path is not in the cache.
+  getCachedPathStatus: (path) ->
+    @statuses[@relativize(path)]
 
   # Public: Returns true if the given branch exists.
   hasBranch: (branch) -> @getReferenceTarget("refs/heads/#{branch}")?
@@ -267,9 +344,19 @@ class Git
   # Refreshes the current git status in an outside process and asynchronously
   # updates the relevant properties.
   refreshStatus: ->
-    @statusTask = Task.once require.resolve('./repository-status-handler'), @getPath(), ({statuses, upstream, branch}) =>
-      statusesUnchanged = _.isEqual(statuses, @statuses) and _.isEqual(upstream, @upstream) and _.isEqual(branch, @branch)
+    handlerPath = require.resolve('./repository-status-handler')
+    @statusTask = Task.once handlerPath, @getPath(), ({statuses, upstream, branch, submodules}) =>
+      statusesUnchanged = _.isEqual(statuses, @statuses) and
+                          _.isEqual(upstream, @upstream) and
+                          _.isEqual(branch, @branch) and
+                          _.isEqual(submodules, @submodules)
+
       @statuses = statuses
       @upstream = upstream
       @branch = branch
+      @submodules = submodules
+
+      for submodulePath, submoduleRepo of @getRepo().submodules
+        submoduleRepo.upstream = submodules[submodulePath].upstream
+
       @emit 'statuses-changed' unless statusesUnchanged

src/gutter-component.coffee

@@ -0,0 +1,79 @@
+React = require 'react'
+{div} = require 'reactionary'
+{isEqual, isEqualForProperties, multiplyString} = require 'underscore-plus'
+SubscriberMixin = require './subscriber-mixin'
+
+module.exports =
+GutterComponent = React.createClass
+  displayName: 'GutterComponent'
+  mixins: [SubscriberMixin]
+
+  render: ->
+    div className: 'gutter',
+      @renderLineNumbers() if @isMounted()
+
+  renderLineNumbers: ->
+    {editor, renderedRowRange, scrollTop, scrollHeight} = @props
+    [startRow, endRow] = renderedRowRange
+    charWidth = editor.getDefaultCharWidth()
+    lineHeight = editor.getLineHeight()
+    maxDigits = editor.getLastBufferRow().toString().length
+    style =
+      width: charWidth * (maxDigits + 1.5)
+      height: scrollHeight
+      WebkitTransform: "translate3d(0, #{-scrollTop}px, 0)"
+
+    lineNumbers = []
+    tokenizedLines = editor.linesForScreenRows(startRow, endRow - 1)
+    tokenizedLines.push({id: 0}) if tokenizedLines.length is 0
+    for bufferRow, i in editor.bufferRowsForScreenRows(startRow, endRow - 1)
+      if bufferRow is lastBufferRow
+        lineNumber = '•'
+      else
+        lastBufferRow = bufferRow
+        lineNumber = (bufferRow + 1).toString()
+
+      key = tokenizedLines[i].id
+      screenRow = startRow + i
+      lineNumbers.push(LineNumberComponent({key, lineNumber, maxDigits, bufferRow, screenRow, lineHeight}))
+      lastBufferRow = bufferRow
+
+    div className: 'line-numbers', style: style,
+      lineNumbers
+
+  # Only update the gutter if the visible row range has changed or if a
+  # non-zero-delta change to the screen lines has occurred within the current
+  # visible row range.
+  shouldComponentUpdate: (newProps) ->
+    return true unless isEqualForProperties(newProps, @props, 'renderedRowRange', 'scrollTop', 'lineHeight')
+
+    {renderedRowRange, pendingChanges} = newProps
+    for change in pendingChanges when change.screenDelta > 0 or change.bufferDelta > 0
+      return true unless change.end <= renderedRowRange.start or renderedRowRange.end <= change.start
+
+    false
+
+LineNumberComponent = React.createClass
+  displayName: 'LineNumberComponent'
+
+  render: ->
+    {bufferRow, screenRow, lineHeight} = @props
+    div
+      className: "line-number line-number-#{bufferRow}"
+      style: {top: screenRow * lineHeight}
+      'data-buffer-row': bufferRow
+      'data-screen-row': screenRow
+      dangerouslySetInnerHTML: {__html: @buildInnerHTML()}
+
+  buildInnerHTML: ->
+    {lineNumber, maxDigits} = @props
+    if lineNumber.length < maxDigits
+      padding = multiplyString('&nbsp;', maxDigits - lineNumber.length)
+      padding + lineNumber + @iconDivHTML
+    else
+      lineNumber + @iconDivHTML
+
+  iconDivHTML: '<div class="icon-right"></div>'
+
+  shouldComponentUpdate: (newProps) ->
+    not isEqualForProperties(newProps, @props, 'lineHeight', 'screenRow')

src/input-component.coffee

@@ -0,0 +1,51 @@
+punycode = require 'punycode'
+{last, isEqual} = require 'underscore-plus'
+React = require 'react'
+{input} = require 'reactionary'
+
+module.exports =
+InputComponent = React.createClass
+  displayName: 'InputComponent'
+
+  render: ->
+    {className, style, onFocus, onBlur} = @props
+
+    input {className, style, onFocus, onBlur}
+
+  getInitialState: ->
+    {lastChar: ''}
+
+  componentDidMount: ->
+    @getDOMNode().addEventListener 'input', @onInput
+    @getDOMNode().addEventListener 'compositionupdate', @onCompositionUpdate
+
+  # Don't let text accumulate in the input forever, but avoid excessive reflows
+  componentDidUpdate: ->
+    if @lastValueLength > 500 and not @isPressAndHoldCharacter(@state.lastChar)
+      @getDOMNode().value = ''
+      @lastValueLength = 0
+
+  # This should actually consult the property lists in /System/Library/Input Methods/PressAndHold.app
+  isPressAndHoldCharacter: (char) ->
+    @state.lastChar.match /[aeiouAEIOU]/
+
+  shouldComponentUpdate: (newProps) ->
+    not isEqual(newProps.style, @props.style)
+
+  onInput: (e) ->
+    e.stopPropagation()
+    valueCharCodes = punycode.ucs2.decode(@getDOMNode().value)
+    valueLength = valueCharCodes.length
+    replaceLastChar = valueLength is @lastValueLength
+    @lastValueLength = valueLength
+    lastChar = String.fromCharCode(last(valueCharCodes))
+    @props.onInput?(lastChar, replaceLastChar)
+
+  onFocus: ->
+    @props.onFocus?()
+
+  onBlur: ->
+    @props.onBlur?()
+
+  focus: ->
+    @getDOMNode().focus()

src/key-binding.coffee

@@ -1,63 +0,0 @@
-_ = require 'underscore-plus'
-fs = require 'fs-plus'
-{specificity} = require 'clear-cut'
-
-module.exports =
-class KeyBinding
-  @parser: null
-  @currentIndex: 1
-  @specificities: null
-
-  @calculateSpecificity: (selector) ->
-    @specificities ?= {}
-    value = @specificities[selector]
-    unless value?
-      value = specificity(selector)
-      @specificities[selector] = value
-    value
-
-  @normalizeKeystroke: (keystroke) ->
-    normalizedKeystroke = keystroke.split(/\s+/).map (keystroke) =>
-      keys = @parseKeystroke(keystroke)
-      modifiers = keys[0...-1]
-      modifiers.sort()
-      key = _.last(keys)
-
-      modifiers.push 'shift' if /^[A-Z]$/.test(key) and 'shift' not in modifiers
-      key = key.toUpperCase() if /^[a-z]$/.test(key) and 'shift' in modifiers
-
-      [modifiers..., key].join('-')
-
-    normalizedKeystroke.join(' ')
-
-  @parseKeystroke: (keystroke) ->
-    unless @parser?
-      try
-        @parser = require './keystroke-pattern'
-      catch
-        keystrokePattern = fs.readFileSync(require.resolve('./keystroke-pattern.pegjs'), 'utf8')
-        PEG = require 'pegjs'
-        @parser = PEG.buildParser(keystrokePattern)
-
-    @parser.parse(keystroke)
-
-  constructor: (source, command, keystroke, selector) ->
-    @source = source
-    @command = command
-    @keystroke = KeyBinding.normalizeKeystroke(keystroke)
-    @selector = selector.replace(/!important/g, '')
-    @specificity = KeyBinding.calculateSpecificity(selector)
-    @index = KeyBinding.currentIndex++
-
-  matches: (keystroke) ->
-    multiKeystroke = /\s/.test keystroke
-    if multiKeystroke
-      keystroke == @keystroke
-    else
-      keystroke.split(' ')[0] == @keystroke.split(' ')[0]
-
-  compare: (keyBinding) ->
-    if keyBinding.specificity == @specificity
-      keyBinding.index - @index
-    else
-      keyBinding.specificity - @specificity

src/keymap-extensions.coffee

@@ -0,0 +1,27 @@
+fs = require 'fs-plus'
+path = require 'path'
+KeymapManager = require 'atom-keymap'
+CSON = require 'season'
+{jQuery} = require 'space-pen'
+
+KeymapManager::loadBundledKeymaps = ->
+  @loadKeymap(path.join(@resourcePath, 'keymaps'))
+  @emit('bundled-keymaps-loaded')
+
+KeymapManager::getUserKeymapPath = ->
+  if userKeymapPath = CSON.resolve(path.join(@configDirPath, 'keymap'))
+    userKeymapPath
+  else
+    path.join(@configDirPath, 'keymap.cson')
+
+KeymapManager::loadUserKeymap = ->
+  userKeymapPath = @getUserKeymapPath()
+  if fs.isFileSync(userKeymapPath)
+    @loadKeymap(userKeymapPath, watch: true, suppressErrors: true)
+
+# This enables command handlers registered via jQuery to call
+# `.abortKeyBinding()` on the `jQuery.Event` object passed to the handler.
+jQuery.Event::abortKeyBinding = ->
+  @originalEvent?.abortKeyBinding?()
+
+module.exports = KeymapManager

src/keymap.coffee

@@ -1,223 +0,0 @@
-{$} = require './space-pen-extensions'
-_ = require 'underscore-plus'
-fs = require 'fs-plus'
-path = require 'path'
-CSON = require 'season'
-KeyBinding = require './key-binding'
-{File} = require 'pathwatcher'
-{Emitter} = require 'emissary'
-
-Modifiers = ['alt', 'control', 'ctrl', 'shift', 'cmd']
-
-# Public: Associates keybindings with commands.
-#
-# An instance of this class is always available as the `atom.keymap` global.
-#
-# Keymaps are defined in a CSON/JSON format. A typical keymap looks something
-# like this:
-#
-# ```cson
-# 'body':
-#   'ctrl-l': 'package:do-something'
-# '.someClass':
-#   'enter': 'package:confirm'
-# ```
-#
-# As a key, you define the DOM element you want to work on, using CSS notation.
-# For that key, you define one or more key:value pairs, associating keystrokes
-# with a command to execute.
-module.exports =
-class Keymap
-  Emitter.includeInto(this)
-
-  constructor: ({@resourcePath, @configDirPath})->
-    @keyBindings = []
-
-  destroy: ->
-    @unwatchUserKeymap()
-
-  # Public: Returns an array of all {KeyBinding}s.
-  getKeyBindings: ->
-    _.clone(@keyBindings)
-
-  # Public: Returns a array of {KeyBinding}s (sorted by selector specificity)
-  # that match a keystroke and element.
-  #
-  # keystroke - The {String} representing the keys pressed (e.g. ctrl-P).
-  # element - The DOM node that will match a {KeyBinding}'s selector.
-  keyBindingsForKeystrokeMatchingElement: (keystroke, element) ->
-    keyBindings = @keyBindingsForKeystroke(keystroke)
-    @keyBindingsMatchingElement(element, keyBindings)
-
-  # Public: Returns a array of {KeyBinding}s (sorted by selector specificity)
-  # that match a command.
-  #
-  # command - The {String} representing the command (tree-view:toggle).
-  # element - The DOM node that will match a {KeyBinding}'s selector.
-  keyBindingsForCommandMatchingElement: (command, element) ->
-    keyBindings = @keyBindingsForCommand(command)
-    @keyBindingsMatchingElement(element, keyBindings)
-
-  # Public: Returns an array of {KeyBinding}s that match a keystroke
-  #
-  # keystroke: The {String} representing the keys pressed (e.g. ctrl-P)
-  keyBindingsForKeystroke: (keystroke) ->
-    keystroke = KeyBinding.normalizeKeystroke(keystroke)
-    @keyBindings.filter (keyBinding) -> keyBinding.matches(keystroke)
-
-  # Public: Returns an array of {KeyBinding}s that match a command
-  #
-  # keystroke - The {String} representing the keys pressed (e.g. ctrl-P)
-  keyBindingsForCommand: (command) ->
-    @keyBindings.filter (keyBinding) -> keyBinding.command == command
-
-  # Public: Returns a array of {KeyBinding}s (sorted by selector specificity)
-  # whos selector matches the element.
-  #
-  # element - The DOM node that will match a {KeyBinding}'s selector.
-  keyBindingsMatchingElement: (element, keyBindings=@keyBindings) ->
-    keyBindings = keyBindings.filter ({selector}) -> $(element).closest(selector).length > 0
-    keyBindings.sort (a, b) -> a.compare(b)
-
-  # Public: Returns a keystroke string derived from an event.
-  #
-  # event - A DOM or jQuery event.
-  # previousKeystroke - An optional string used for multiKeystrokes.
-  keystrokeStringForEvent: (event, previousKeystroke) ->
-    if event.originalEvent.keyIdentifier.indexOf('U+') == 0
-      hexCharCode = event.originalEvent.keyIdentifier[2..]
-      charCode = parseInt(hexCharCode, 16)
-      charCode = event.which if !@isAscii(charCode) and @isAscii(event.which)
-      key = @keyFromCharCode(charCode)
-    else
-      key = event.originalEvent.keyIdentifier.toLowerCase()
-
-    modifiers = []
-    if event.altKey and key not in Modifiers
-      modifiers.push 'alt'
-    if event.metaKey and key not in Modifiers
-      modifiers.push 'cmd'
-    if event.ctrlKey and key not in Modifiers
-      modifiers.push 'ctrl'
-    if event.shiftKey and key not in Modifiers
-      # Don't push the shift modifier on single letter non-alpha keys (e.g. { or ')
-      modifiers.push 'shift' unless /^[^a-z]$/i.test(key)
-
-    if 'shift' in modifiers and /^[a-z]$/i.test(key)
-      key = key.toUpperCase()
-    else
-      key = key.toLowerCase()
-
-    keystroke = [modifiers..., key].join('-')
-
-    if previousKeystroke
-      if keystroke in Modifiers
-        previousKeystroke
-      else
-        "#{previousKeystroke} #{keystroke}"
-    else
-      keystroke
-
-  loadBundledKeymaps: ->
-    @loadDirectory(path.join(@resourcePath, 'keymaps'))
-    @emit('bundled-keymaps-loaded')
-
-  getUserKeymapPath: ->
-    if userKeymapPath = CSON.resolve(path.join(@configDirPath, 'keymap'))
-      userKeymapPath
-    else
-      path.join(@configDirPath, 'keymap.cson')
-
-  unwatchUserKeymap: ->
-    @userKeymapFile?.off()
-    @remove(@userKeymapPath) if @userKeymapPath?
-
-  loadUserKeymap: ->
-    @unwatchUserKeymap()
-    userKeymapPath = @getUserKeymapPath()
-    if fs.isFileSync(userKeymapPath)
-      @userKeymapPath = userKeymapPath
-      @userKeymapFile = new File(userKeymapPath)
-      @userKeymapFile.on 'contents-changed moved removed', => @loadUserKeymap()
-      @add(@userKeymapPath, @readUserKeymap())
-
-  readUserKeymap: ->
-    try
-      CSON.readFileSync(@userKeymapPath) ? {}
-    catch error
-      console.warn("Failed to load your keymap file: #{@userKeymapPath}", error.stack ? error)
-      {}
-
-  loadDirectory: (directoryPath) ->
-    platforms = ['darwin', 'freebsd', 'linux', 'sunos', 'win32']
-    otherPlatforms = platforms.filter (name) -> name != process.platform
-
-    for filePath in fs.listSync(directoryPath, ['.cson', '.json'])
-      continue if path.basename(filePath, path.extname(filePath)) in otherPlatforms
-      @load(filePath)
-
-  load: (path) ->
-    @add(path, CSON.readFileSync(path))
-
-  add: (source, keyMappingsBySelector) ->
-    for selector, keyMappings of keyMappingsBySelector
-      @bindKeys(source, selector, keyMappings)
-
-  remove: (source) ->
-    @keyBindings = @keyBindings.filter (keyBinding) -> keyBinding.source isnt source
-
-  bindKeys: (source, selector, keyMappings) ->
-    for keystroke, command of keyMappings
-      keyBinding = new KeyBinding(source, command, keystroke, selector)
-      try
-        $(keyBinding.selector) # Verify selector is valid before registering
-        @keyBindings.push(keyBinding)
-      catch
-        console.warn("Keybinding '#{keystroke}': '#{command}' in #{source} has an invalid selector: '#{selector}'")
-
-  handleKeyEvent: (event) ->
-    element = event.target
-    element = atom.workspaceView if element == document.body
-    keystroke = @keystrokeStringForEvent(event, @queuedKeystroke)
-    keyBindings = @keyBindingsForKeystrokeMatchingElement(keystroke, element)
-
-    if keyBindings.length == 0 and @queuedKeystroke
-      @queuedKeystroke = null
-      return false
-    else
-      @queuedKeystroke = null
-
-    for keyBinding in keyBindings
-      partialMatch = keyBinding.keystroke isnt keystroke
-      if partialMatch
-        @queuedKeystroke = keystroke
-        shouldBubble = false
-      else
-        if keyBinding.command is 'native!'
-          shouldBubble = true
-        else if @triggerCommandEvent(element, keyBinding.command, event)
-          shouldBubble = false
-
-      break if shouldBubble?
-
-    shouldBubble ? true
-
-  triggerCommandEvent: (element, commandName, event) ->
-    commandEvent = $.Event(commandName)
-    commandEvent.originalEvent = event
-    commandEvent.abortKeyBinding = -> commandEvent.stopImmediatePropagation()
-    $(element).trigger(commandEvent)
-    not commandEvent.isImmediatePropagationStopped()
-
-  isAscii: (charCode) ->
-    0 <= charCode <= 127
-
-  keyFromCharCode: (charCode) ->
-    switch charCode
-      when 8 then 'backspace'
-      when 9 then 'tab'
-      when 13 then 'enter'
-      when 27 then 'escape'
-      when 32 then 'space'
-      when 127 then 'delete'
-      else String.fromCharCode(charCode)

src/keystroke-pattern.pegjs

@@ -1,3 +0,0 @@
-keystrokePattern = key:key additionalKeys:additionalKey* { return [key].concat(additionalKeys); }
-additionalKey = '-' key:key { return key; }
-key = '-' / chars:[^-]+ { return chars.join('') }

src/language-mode.coffee

@@ -39,13 +39,13 @@ class LanguageMode
     return unless commentStartString
 
     buffer = @editor.buffer
-    commentStartRegexString = _.escapeRegExp(commentStartString).replace(/(\s+)$/, '($1)?')
+    commentStartRegexString = _.escapeRegExp(commentStartString).replace(/(\s+)$/, '(?:$1)?')
     commentStartRegex = new OnigRegExp("^(\\s*)(#{commentStartRegexString})")
     shouldUncomment = commentStartRegex.test(buffer.lineForRow(start))
 
     if commentEndString
       if shouldUncomment
-        commentEndRegexString = _.escapeRegExp(commentEndString).replace(/^(\s+)/, '($1)?')
+        commentEndRegexString = _.escapeRegExp(commentEndString).replace(/^(\s+)/, '(?:$1)?')
         commentEndRegex = new OnigRegExp("(#{commentEndRegexString})(\\s*)$")
         startMatch =  commentStartRegex.search(buffer.lineForRow(start))
         endMatch = commentEndRegex.search(buffer.lineForRow(end))
@@ -53,11 +53,11 @@ class LanguageMode
           buffer.transact ->
             columnStart = startMatch[1].length
             columnEnd = columnStart + startMatch[2].length
-            buffer.change([[start, columnStart], [start, columnEnd]], "")
+            buffer.setTextInRange([[start, columnStart], [start, columnEnd]], "")
 
             endLength = buffer.lineLengthForRow(end) - endMatch[2].length
             endColumn = endLength - endMatch[1].length
-            buffer.change([[end, endColumn], [end, endLength]], "")
+            buffer.setTextInRange([[end, endColumn], [end, endLength]], "")
       else
         buffer.transact ->
           buffer.insert([start, 0], commentStartString)
@@ -72,9 +72,12 @@ class LanguageMode
           if match = commentStartRegex.search(buffer.lineForRow(row))
             columnStart = match[1].length
             columnEnd = columnStart + match[2].length
-            buffer.change([[row, columnStart], [row, columnEnd]], "")
+            buffer.setTextInRange([[row, columnStart], [row, columnEnd]], "")
       else
-        indent = @minIndentLevelForRowRange(start, end)
+        if start is end
+          indent = @editor.indentationForBufferRow(start)
+        else
+          indent = @minIndentLevelForRowRange(start, end)
         indentString = @editor.buildIndentString(indent)
         tabLength = @editor.getTabLength()
         indentRegex = new RegExp("(\t|[ ]{#{tabLength}}){#{Math.floor(indent)}}")
@@ -83,7 +86,7 @@ class LanguageMode
           if indentLength = line.match(indentRegex)?[0].length
             buffer.insert([row, indentLength], commentStartString)
           else
-            buffer.change([[row, 0], [row, indentString.length]], indentString + commentStartString)
+            buffer.setTextInRange([[row, 0], [row, indentString.length]], indentString + commentStartString)
 
   # Folds all the foldable lines in the buffer.
   foldAll: ->
@@ -265,10 +268,11 @@ class LanguageMode
 
   # Given a buffer row, this indents it.
   #
-  # bufferRow - The row {Number}
-  autoIndentBufferRow: (bufferRow) ->
+  # bufferRow - The row {Number}.
+  # options - An options {Object} to pass through to {Editor::setIndentationForBufferRow}.
+  autoIndentBufferRow: (bufferRow, options) ->
     indentLevel = @suggestedIndentForBufferRow(bufferRow)
-    @editor.setIndentationForBufferRow(bufferRow, indentLevel)
+    @editor.setIndentationForBufferRow(bufferRow, indentLevel, options)
 
   # Given a buffer row, this decreases the indentation.
   #

src/less-compile-cache.coffee

@@ -1,16 +1,14 @@
 path = require 'path'
-os = require 'os'
+fs = require 'fs-plus'
 LessCache = require 'less-cache'
 {Subscriber} = require 'emissary'
 
-tmpDir = if process.platform is 'win32' then os.tmpdir() else '/tmp'
-
 # {LessCache} wrapper used by {ThemeManager} to read stylesheets.
 module.exports =
 class LessCompileCache
   Subscriber.includeInto(this)
 
-  @cacheDir: path.join(tmpDir, 'atom-compile-cache', 'less')
+  @cacheDir: path.join(atom.getConfigDirPath(), 'compile-cache', 'less')
 
   constructor: ({resourcePath, importPaths}) ->
     @lessSearchPaths = [

src/lines-component.coffee

@@ -0,0 +1,140 @@
+React = require 'react'
+{div, span} = require 'reactionary'
+{debounce, isEqual, isEqualForProperties, multiplyString} = require 'underscore-plus'
+{$$} = require 'space-pen'
+
+DummyLineNode = $$(-> @div className: 'line', style: 'position: absolute; visibility: hidden;', => @span 'x')[0]
+AcceptFilter = {acceptNode: -> NodeFilter.FILTER_ACCEPT}
+
+module.exports =
+LinesComponent = React.createClass
+  displayName: 'LinesComponent'
+
+  render: ->
+    if @isMounted()
+      {editor, renderedRowRange, lineHeight, showIndentGuide} = @props
+      [startRow, endRow] = renderedRowRange
+
+      lines =
+        for tokenizedLine, i in editor.linesForScreenRows(startRow, endRow - 1)
+          LineComponent({key: tokenizedLine.id, tokenizedLine, showIndentGuide, lineHeight, screenRow: startRow + i})
+
+    div {className: 'lines'}, lines
+
+  componentWillMount: ->
+    @measuredLines = new WeakSet
+
+  componentDidMount: ->
+    @measureLineHeightAndCharWidth()
+
+  shouldComponentUpdate: (newProps) ->
+    return true unless isEqualForProperties(newProps, @props,  'renderedRowRange', 'fontSize', 'fontFamily', 'lineHeight', 'showIndentGuide')
+
+    {renderedRowRange, pendingChanges} = newProps
+    for change in pendingChanges
+      return true unless change.end <= renderedRowRange.start or renderedRowRange.end <= change.start
+
+    false
+
+  componentDidUpdate: (prevProps) ->
+    @measureLineHeightAndCharWidth() unless isEqualForProperties(prevProps, @props, 'fontSize', 'fontFamily', 'lineHeight')
+    @clearScopedCharWidths() unless isEqualForProperties(prevProps, @props, 'fontSize', 'fontFamily')
+    @measureCharactersInNewLines() unless @props.scrollingVertically
+
+  measureLineHeightAndCharWidth: ->
+    node = @getDOMNode()
+    node.appendChild(DummyLineNode)
+    lineHeight = DummyLineNode.getBoundingClientRect().height
+    charWidth = DummyLineNode.firstChild.getBoundingClientRect().width
+    node.removeChild(DummyLineNode)
+
+    {editor} = @props
+    editor.setLineHeight(lineHeight)
+    editor.setDefaultCharWidth(charWidth)
+
+  measureCharactersInNewLines: ->
+    [visibleStartRow, visibleEndRow] = @props.renderedRowRange
+    node = @getDOMNode()
+
+    for tokenizedLine, i in @props.editor.linesForScreenRows(visibleStartRow, visibleEndRow - 1)
+      unless @measuredLines.has(tokenizedLine)
+        lineNode = node.children[i]
+        @measureCharactersInLine(tokenizedLine, lineNode)
+
+  measureCharactersInLine: (tokenizedLine, lineNode) ->
+    {editor} = @props
+    rangeForMeasurement = null
+    iterator = null
+    charIndex = 0
+
+    for {value, scopes}, tokenIndex in tokenizedLine.tokens
+      charWidths = editor.getScopedCharWidths(scopes)
+
+      for char in value
+        unless charWidths[char]?
+          unless textNode?
+            rangeForMeasurement ?= document.createRange()
+            iterator =  document.createNodeIterator(lineNode, NodeFilter.SHOW_TEXT, AcceptFilter)
+            textNode = iterator.nextNode()
+            textNodeIndex = 0
+            nextTextNodeIndex = textNode.textContent.length
+
+          while nextTextNodeIndex <= charIndex
+            textNode = iterator.nextNode()
+            textNodeIndex = nextTextNodeIndex
+            nextTextNodeIndex = textNodeIndex + textNode.textContent.length
+
+          i = charIndex - textNodeIndex
+          rangeForMeasurement.setStart(textNode, i)
+          rangeForMeasurement.setEnd(textNode, i + 1)
+          charWidth = rangeForMeasurement.getBoundingClientRect().width
+          editor.setScopedCharWidth(scopes, char, charWidth)
+
+        charIndex++
+
+    @measuredLines.add(tokenizedLine)
+
+  clearScopedCharWidths: ->
+    @measuredLines.clear()
+    @props.editor.clearScopedCharWidths()
+
+
+LineComponent = React.createClass
+  displayName: 'LineComponent'
+
+  render: ->
+    {screenRow, lineHeight} = @props
+
+    style =
+      top: screenRow * lineHeight
+      position: 'absolute'
+
+    div className: 'line', style: style, 'data-screen-row': screenRow, dangerouslySetInnerHTML: {__html: @buildInnerHTML()}
+
+  buildInnerHTML: ->
+    if @props.tokenizedLine.text.length is 0
+      @buildEmptyLineHTML()
+    else
+      @buildScopeTreeHTML(@props.tokenizedLine.getScopeTree())
+
+  buildEmptyLineHTML: ->
+    {showIndentGuide, tokenizedLine} = @props
+    {indentLevel, tabLength} = tokenizedLine
+
+    if showIndentGuide and indentLevel > 0
+      indentSpan = "<span class='indent-guide'>#{multiplyString(' ', tabLength)}</span>"
+      multiplyString(indentSpan, indentLevel + 1)
+    else
+      "&nbsp;"
+
+  buildScopeTreeHTML: (scopeTree) ->
+    if scopeTree.children?
+      html = "<span class='#{scopeTree.scope.replace(/\./g, ' ')}'>"
+      html += @buildScopeTreeHTML(child) for child in scopeTree.children
+      html += "</span>"
+      html
+    else
+      "<span>#{scopeTree.getValueAsHtml({hasIndentGuide: @props.showIndentGuide})}</span>"
+
+  shouldComponentUpdate: (newProps) ->
+    not isEqualForProperties(newProps, @props, 'showIndentGuide', 'lineHeight', 'screenRow')

src/menu-manager.coffee

@@ -14,7 +14,7 @@ class MenuManager
   constructor: ({@resourcePath}) ->
     @pendingUpdateOperation = null
     @template = []
-    atom.keymap.on 'bundled-keymaps-loaded', => @loadPlatformItems()
+    atom.keymaps.on 'bundled-keymaps-loaded', => @loadPlatformItems()
 
   # Public: Adds the given item definition to the existing template.
   #
@@ -59,7 +59,8 @@ class MenuManager
       testBody.classList.add(@classesForElement(document.body)...)
 
       testWorkspace = document.createElement('body')
-      workspaceClasses = @classesForElement(document.body.querySelector('.workspace')) ? ['.workspace']
+      workspaceClasses = @classesForElement(document.body.querySelector('.workspace'))
+      workspaceClasses = ['workspace'] if workspaceClasses.length is 0
       testWorkspace.classList.add(workspaceClasses...)
 
       testBody.appendChild(testWorkspace)
@@ -75,9 +76,9 @@ class MenuManager
     clearImmediate(@pendingUpdateOperation) if @pendingUpdateOperation?
     @pendingUpdateOperation = setImmediate =>
       keystrokesByCommand = {}
-      for binding in atom.keymap.getKeyBindings() when @includeSelector(binding.selector)
+      for binding in atom.keymaps.getKeyBindings() when @includeSelector(binding.selector)
         keystrokesByCommand[binding.command] ?= []
-        keystrokesByCommand[binding.command].push binding.keystroke
+        keystrokesByCommand[binding.command].unshift binding.keystrokes
       @sendToBrowserProcess(@template, keystrokesByCommand)
 
   loadPlatformItems: ->
@@ -91,10 +92,10 @@ class MenuManager
   merge: (menu, item) ->
     item = _.deepClone(item)
 
-    if item.submenu? and match = _.find(menu, (i) => i.submenu? and @normalizeLabel(i.label) == @normalizeLabel(item.label))
+    if item.submenu? and match = _.find(menu, ({label, submenu}) => submenu? and label and @normalizeLabel(label) is @normalizeLabel(item.label))
       @merge(match.submenu, i) for i in item.submenu
     else
-      menu.push(item) unless _.find(menu, (i) => @normalizeLabel(i.label) == @normalizeLabel(item.label))
+      menu.push(item) unless _.find(menu, ({label}) => label and @normalizeLabel(label) is @normalizeLabel(item.label))
 
   # OSX can't handle displaying accelerators for multiple keystrokes.
   # If they are sent across, it will stop processing accelerators for the rest
@@ -116,10 +117,10 @@ class MenuManager
   normalizeLabel: (label) ->
     return undefined unless label?
 
-    if process.platform is 'win32'
-      label.replace(/\&/g, '')
-    else
+    if process.platform is 'darwin'
       label
+    else
+      label.replace(/\&/g, '')
 
   # Get an {Array} of {String} classes for the given element.
   classesForElement: (element) ->

src/package.coffee

@@ -7,7 +7,7 @@ fs = require 'fs-plus'
 {Emitter} = require 'emissary'
 Q = require 'q'
 
-{$} = require './space-pen-extensions'
+$ = null # Defer require in case this is in the window-less browser process
 ScopedProperties = require './scoped-properties'
 
 # Loads and activates a package's main module and resources such as
@@ -69,7 +69,7 @@ class Package
         @loadStylesheets()
         @grammarsPromise = @loadGrammars()
         @scopedPropertiesPromise = @loadScopedProperties()
-        @requireMainModule() unless @metadata.activationEvents?
+        @requireMainModule() unless @hasActivationEvents()
 
       catch error
         console.warn "Failed to load package named '#{@name}'", error.stack ? error
@@ -87,7 +87,7 @@ class Package
       @activationDeferred = Q.defer()
       @measure 'activateTime', =>
         @activateResources()
-        if @metadata.activationEvents?
+        if @hasActivationEvents()
           @subscribeToActivationEvents()
         else
           @activateNow()
@@ -124,7 +124,7 @@ class Package
     @stylesheetsActivated = true
 
   activateResources: ->
-    atom.keymap.add(keymapPath, map) for [keymapPath, map] in @keymaps
+    atom.keymaps.add(keymapPath, map) for [keymapPath, map] in @keymaps
     atom.contextMenu.add(menuPath, map['context-menu']) for [menuPath, map] in @menus
     atom.menu.add(map.menu) for [menuPath, map] in @menus when map.menu
 
@@ -232,7 +232,7 @@ class Package
   deactivateResources: ->
     grammar.deactivate() for grammar in @grammars
     scopedProperties.deactivate() for scopedProperties in @scopedProperties
-    atom.keymap.remove(keymapPath) for [keymapPath] in @keymaps
+    atom.keymaps.remove(keymapPath) for [keymapPath] in @keymaps
     atom.themes.removeStylesheet(stylesheetPath) for [stylesheetPath] in @stylesheets
     @stylesheetsActivated = false
     @grammarsActivated = false
@@ -262,6 +262,18 @@ class Package
         path.join(@path, 'index')
     @mainModulePath = fs.resolveExtension(mainModulePath, ["", _.keys(require.extensions)...])
 
+  hasActivationEvents: ->
+    if _.isArray(@metadata.activationEvents)
+      return @metadata.activationEvents.some (activationEvent) ->
+        activationEvent?.length > 0
+    else if _.isString(@metadata.activationEvents)
+      return @metadata.activationEvents.length > 0
+    else if _.isObject(@metadata.activationEvents)
+      for event, selector of @metadata.activationEvents
+        return true if event.length > 0 and selector.length > 0
+
+    false
+
   subscribeToActivationEvents: ->
     return unless @metadata.activationEvents?
     if _.isArray(@metadata.activationEvents)
@@ -274,9 +286,11 @@ class Package
   handleActivationEvent: (event) =>
     bubblePathEventHandlers = @disableEventHandlersOnBubblePath(event)
     @activateNow()
+    $ ?= require('./space-pen-extensions').$
     $(event.target).trigger(event)
     @restoreEventHandlersOnBubblePath(bubblePathEventHandlers)
     @unsubscribeFromActivationEvents()
+    false
 
   unsubscribeFromActivationEvents: ->
     return unless atom.workspaceView?
@@ -291,6 +305,7 @@ class Package
   disableEventHandlersOnBubblePath: (event) ->
     bubblePathEventHandlers = []
     disabledHandler = ->
+    $ ?= require('./space-pen-extensions').$
     element = $(event.target)
     while element.length
       if eventHandlers = element.handlers()?[event.type]

src/pane-container-view.coffee

@@ -1,3 +1,4 @@
+{deprecate} = require 'grim'
 Delegator = require 'delegato'
 {$, View} = require './space-pen-extensions'
 PaneView = require './pane-view'
@@ -54,9 +55,9 @@ class PaneContainerView extends View
 
   confirmClose: ->
     saved = true
-    for pane in @getPaneViews()
-      for item in pane.getItems()
-        if not pane.promptToSaveItem(item)
+    for paneView in @getPaneViews()
+      for item in paneView.getItems()
+        if not paneView.promptToSaveItem(item)
           saved = false
           break
     saved
@@ -64,29 +65,33 @@ class PaneContainerView extends View
   getPaneViews: ->
     @find('.pane').views()
 
-  indexOfPane: (pane) ->
-    @getPaneViews().indexOf(pane.view())
+  indexOfPane: (paneView) ->
+    @getPaneViews().indexOf(paneView.view())
 
   paneAtIndex: (index) ->
     @getPaneViews()[index]
 
   eachPaneView: (callback) ->
-    callback(pane) for pane in @getPaneViews()
-    paneAttached = (e) -> callback($(e.target).view())
-    @on 'pane:attached', paneAttached
-    off: => @off 'pane:attached', paneAttached
+    callback(paneView) for paneView in @getPaneViews()
+    paneViewAttached = (e) -> callback($(e.target).view())
+    @on 'pane:attached', paneViewAttached
+    off: => @off 'pane:attached', paneViewAttached
 
   getFocusedPane: ->
     @find('.pane:has(:focus)').view()
 
   getActivePane: ->
+    deprecate("Use PaneContainerView::getActivePaneView instead.")
+    @getActivePaneView()
+
+  getActivePaneView: ->
     @viewForModel(@model.activePane)
 
   getActivePaneItem: ->
     @model.activePaneItem
 
   getActiveView: ->
-    @getActivePane()?.activeView
+    @getActivePaneView()?.activeView
 
   paneForUri: (uri) ->
     @viewForModel(@model.paneForUri(uri))
@@ -115,29 +120,29 @@ class PaneContainerView extends View
       y = pointB.y - pointA.y
       Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2))
 
-    pane = @getActivePane()
-    box = @boundingBoxForPane(pane)
-    panes = @getPaneViews()
-      .filter (otherPane) =>
-        otherBox = @boundingBoxForPane(otherPane)
+    paneView = @getActivePaneView()
+    box = @boundingBoxForPaneView(paneView)
+    paneViews = @getPaneViews()
+      .filter (otherPaneView) =>
+        otherBox = @boundingBoxForPaneView(otherPaneView)
         switch direction
           when 'left' then otherBox.right.x <= box.left.x
           when 'right' then otherBox.left.x >= box.right.x
           when 'above' then otherBox.bottom.y <= box.top.y
           when 'below' then otherBox.top.y >= box.bottom.y
-      .sort (paneA, paneB) =>
-        boxA = @boundingBoxForPane(paneA)
-        boxB = @boundingBoxForPane(paneB)
+      .sort (paneViewA, paneViewB) =>
+        boxA = @boundingBoxForPaneView(paneViewA)
+        boxB = @boundingBoxForPaneView(paneViewB)
         switch direction
           when 'left' then distance(box.left, boxA.right) - distance(box.left, boxB.right)
           when 'right' then distance(box.right, boxA.left) - distance(box.right, boxB.left)
           when 'above' then distance(box.top, boxA.bottom) - distance(box.top, boxB.bottom)
           when 'below' then distance(box.bottom, boxA.top) - distance(box.bottom, boxB.top)
 
-    panes[0]
+    paneViews[0]
 
-  boundingBoxForPane: (pane) ->
-    boundingBox = pane[0].getBoundingClientRect()
+  boundingBoxForPaneView: (paneView) ->
+    boundingBox = paneView[0].getBoundingClientRect()
 
     left: {x: boundingBox.left, y: boundingBox.top}
     right: {x: boundingBox.right, y: boundingBox.top}
@@ -146,4 +151,5 @@ class PaneContainerView extends View
 
   # Deprecated
   getPanes: ->
+    deprecate("Use PaneContainerView::getPaneViews() instead")
     @getPaneViews()

src/pane-container.coffee

@@ -39,6 +39,9 @@ class PaneContainer extends Model
   getPanes: ->
     @root?.getPanes() ? []
 
+  getActivePane: ->
+    @activePane
+
   paneForUri: (uri) ->
     find @getPanes(), (pane) -> pane.itemForUri(uri)?
 

src/pane-view.coffee

@@ -1,5 +1,6 @@
 {$, View} = require './space-pen-extensions'
 Delegator = require 'delegato'
+{deprecate} = require 'grim'
 PropertyAccessors = require 'property-accessors'
 
 Pane = require './pane'
@@ -75,26 +76,40 @@ class PaneView extends View
     @command 'pane:split-right', => @splitRight(@copyActiveItem())
     @command 'pane:split-up', => @splitUp(@copyActiveItem())
     @command 'pane:split-down', => @splitDown(@copyActiveItem())
-    @command 'pane:close', => @model.destroy()
+    @command 'pane:close', =>
+      @model.destroyItems()
+      @model.destroy()
     @command 'pane:close-other-items', => @destroyInactiveItems()
 
   # Deprecated: Use ::destroyItem
-  removeItem: (item) -> @destroyItem(item)
+  removeItem: (item) ->
+    deprecate("Use PaneView::destroyItem instead")
+    @destroyItem(item)
 
   # Deprecated: Use ::activateItem
-  showItem: (item) -> @activateItem(item)
+  showItem: (item) ->
+    deprecate("Use PaneView::activateItem instead")
+    @activateItem(item)
 
   # Deprecated: Use ::activateItemForUri
-  showItemForUri: (item) -> @activateItemForUri(item)
+  showItemForUri: (item) ->
+    deprecate("Use PaneView::activateItemForUri instead")
+    @activateItemForUri(item)
 
   # Deprecated: Use ::activateItemAtIndex
-  showItemAtIndex: (index) -> @activateItemAtIndex(index)
+  showItemAtIndex: (index) ->
+    deprecate("Use PaneView::activateItemAtIndex instead")
+    @activateItemAtIndex(index)
 
   # Deprecated: Use ::activateNextItem
-  showNextItem: -> @activateNextItem()
+  showNextItem: ->
+    deprecate("Use PaneView::destroyItem instead")
+    @activateNextItem()
 
   # Deprecated: Use ::activatePreviousItem
-  showPreviousItem: -> @activatePreviousItem()
+  showPreviousItem: ->
+    deprecate("Use PaneView::activatePreviousItem instead")
+    @activatePreviousItem()
 
   afterAttach: (onDom) ->
     @focus() if @model.focused and onDom

src/pane.coffee

@@ -1,5 +1,4 @@
 {find, compact, extend, last} = require 'underscore-plus'
-{dirname} = require 'path'
 {Model, Sequence} = require 'theorist'
 Serializable = require 'serializable'
 PaneAxis = require './pane-axis'
@@ -265,10 +264,9 @@ class Pane extends Model
     return unless item?.saveAs?
 
     itemPath = item.getPath?()
-    itemPath = dirname(itemPath) if itemPath
-    path = atom.showSaveDialogSync(itemPath)
-    if path
-      item.saveAs(path)
+    newItemPath = atom.showSaveDialogSync(itemPath)
+    if newItemPath
+      item.saveAs(newItemPath)
       nextAction?()
 
   # Public: Saves all items.

src/project.coffee

@@ -4,6 +4,7 @@ url = require 'url'
 _ = require 'underscore-plus'
 fs = require 'fs-plus'
 Q = require 'q'
+{deprecate} = require 'grim'
 {Model} = require 'theorist'
 {Emitter, Subscriber} = require 'emissary'
 Serializable = require 'serializable'
@@ -30,13 +31,11 @@ class Project extends Model
 
   constructor: ({path, @buffers}={}) ->
     @buffers ?= []
-    @openers = []
 
     for buffer in @buffers
       do (buffer) =>
         buffer.once 'destroyed', => @removeBuffer(buffer)
 
-    @editors = []
     @setPath(path)
 
   serializeParams: ->
@@ -48,7 +47,6 @@ class Project extends Model
     params
 
   destroyed: ->
-    editor.destroy() for editor in @getEditors()
     buffer.destroy() for buffer in @getBuffers()
     @destroyRepo()
 
@@ -127,18 +125,10 @@ class Project extends Model
 
   # Deprecated
   openSync: (filePath, options={}) ->
+    deprecate("Use Project::open instead")
     filePath = @resolve(filePath)
     @buildEditorForBuffer(@bufferForPathSync(filePath), options)
 
-  # Add the given {Editor}.
-  addEditor: (editor) ->
-    @editors.push editor
-    @emit 'editor-created', editor
-
-  # Return and removes the given {Editor}.
-  removeEditor: (editor) ->
-    _.remove(@editors, editor)
-
   # Retrieves all the {TextBuffer}s in the project; that is, the
   # buffers for all open files.
   #
@@ -151,7 +141,7 @@ class Project extends Model
     @findBufferForPath(@resolve(filePath))?.isModified()
 
   findBufferForPath: (filePath) ->
-   _.find @buffers, (buffer) -> buffer.getPath() == filePath
+    _.find @buffers, (buffer) -> buffer.getPath() == filePath
 
   # Only to be used in specs
   bufferForPathSync: (filePath) ->
@@ -177,6 +167,7 @@ class Project extends Model
 
   # DEPRECATED
   buildBufferSync: (absoluteFilePath) ->
+    deprecate("Use Project::buildBuffer instead")
     buffer = new TextBuffer({filePath: absoluteFilePath})
     @addBuffer(buffer)
     buffer.loadSync()
@@ -301,8 +292,7 @@ class Project extends Model
     deferred.promise
 
   buildEditorForBuffer: (buffer, editorOptions) ->
-    editor = new Editor(_.extend({buffer}, editorOptions))
-    @addEditor(editor)
+    editor = new Editor(_.extend({buffer, registerEditor: true}, editorOptions))
     editor
 
   eachBuffer: (args...) ->
@@ -317,17 +307,20 @@ class Project extends Model
 
   # Deprecated: delegate
   registerOpener: (opener) ->
-    @openers.push(opener)
+    deprecate("Use Workspace::registerOpener instead")
+    atom.workspace.registerOpener(opener)
 
   # Deprecated: delegate
   unregisterOpener: (opener) ->
-    _.remove(@openers, opener)
+    deprecate("Use Workspace::unregisterOpener instead")
+    atom.workspace.unregisterOpener(opener)
 
   # Deprecated: delegate
   eachEditor: (callback) ->
-    callback(editor) for editor in @getEditors()
-    @on 'editor-created', (editor) -> callback(editor)
+    deprecate("Use Workspace::eachEditor instead")
+    atom.workspace.eachEditor(callback)
 
   # Deprecated: delegate
   getEditors: ->
-    new Array(@editors...)
+    deprecate("Use Workspace::getEditors instead")
+    atom.workspace.getEditors()

src/react-editor-view.coffee

@@ -0,0 +1,81 @@
+{View, $} = require 'space-pen'
+React = require 'react'
+EditorComponent = require './editor-component'
+
+module.exports =
+class ReactEditorView extends View
+  @content: -> @div class: 'editor react-wrapper'
+
+  focusOnAttach: false
+
+  constructor: (@editor) ->
+    super
+
+  getEditor: -> @editor
+
+  Object.defineProperty @::, 'lineHeight', get: -> @editor.getLineHeight()
+  Object.defineProperty @::, 'charWidth', get: -> @editor.getDefaultCharWidth()
+
+  scrollTop: (scrollTop) ->
+    if scrollTop?
+      @editor.setScrollTop(scrollTop)
+    else
+      @editor.getScrollTop()
+
+  scrollLeft: (scrollLeft) ->
+    if scrollLeft?
+      @editor.setScrollLeft(scrollLeft)
+    else
+      @editor.getScrollLeft()
+
+  scrollToScreenPosition: (screenPosition) ->
+    @editor.scrollToScreenPosition(screenPosition)
+
+  scrollToBufferPosition: (bufferPosition) ->
+    @editor.scrollToBufferPosition(bufferPosition)
+
+  afterAttach: (onDom) ->
+    return unless onDom
+    @attached = true
+    @component = React.renderComponent(EditorComponent({@editor, parentView: this}), @element)
+
+    node = @component.getDOMNode()
+
+    @underlayer = $(node).find('.underlayer')
+
+    @gutter = $(node).find('.gutter')
+    @gutter.removeClassFromAllLines = (klass) =>
+      @gutter.find('.line-number').removeClass(klass)
+
+    @gutter.addClassToLine = (bufferRow, klass) =>
+      lines = @gutter.find(".line-number-#{bufferRow}")
+      lines.addClass(klass)
+      lines.length > 0
+
+    @focus() if @focusOnAttach
+
+    @trigger 'editor:attached', [this]
+
+  pixelPositionForBufferPosition: (bufferPosition) ->
+    @editor.pixelPositionForBufferPosition(bufferPosition)
+
+  pixelPositionForScreenPosition: (screenPosition) ->
+    @editor.pixelPositionForScreenPosition(screenPosition)
+
+  appendToLinesView: (view) ->
+    view.css('position', 'absolute')
+    @find('.scroll-view-content').prepend(view)
+
+  beforeRemove: ->
+    React.unmountComponentAtNode(@element)
+    @attached = false
+    @trigger 'editor:detached', this
+
+  getPane: ->
+    @closest('.pane').view()
+
+  focus: ->
+    if @component?
+      @component.onFocus()
+    else
+      @focusOnAttach = true

src/repository-status-handler.coffee

@@ -3,17 +3,33 @@ path = require 'path'
 
 module.exports = (repoPath) ->
   repo = Git.open(repoPath)
+
+  upstream = {}
+  statuses = {}
+  submodules = {}
+  branch = null
+
   if repo?
+    # Statuses in main repo
     workingDirectoryPath = repo.getWorkingDirectory()
-    statuses = {}
     for filePath, status of repo.getStatus()
-      statuses[path.join(workingDirectoryPath, filePath)] = status
+      statuses[filePath] = status
+
+    # Statuses in submodules
+    for submodulePath, submoduleRepo of repo.submodules
+      submodules[submodulePath] =
+        branch: submoduleRepo.getHead()
+        upstream: submoduleRepo.getAheadBehindCount()
+
+      workingDirectoryPath = submoduleRepo.getWorkingDirectory()
+      for filePath, status of submoduleRepo.getStatus()
+        absolutePath = path.join(workingDirectoryPath, filePath)
+        # Make path relative to parent repository
+        relativePath = repo.relativize(absolutePath)
+        statuses[relativePath] = status
+
     upstream = repo.getAheadBehindCount()
     branch = repo.getHead()
     repo.release()
-  else
-    upstream = {}
-    statuses = {}
-    branch = null
 
-  {statuses, upstream, branch}
+  {statuses, upstream, branch, submodules}

src/scrollbar-component.coffee

@@ -0,0 +1,54 @@
+React = require 'react'
+{div} = require 'reactionary'
+{isEqualForProperties} = require 'underscore-plus'
+
+module.exports =
+ScrollbarComponent = React.createClass
+  render: ->
+    {orientation, className, scrollHeight, scrollWidth} = @props
+
+    div {className, @onScroll},
+      switch orientation
+        when 'vertical'
+          div className: 'scrollbar-content', style: {height: scrollHeight}
+        when 'horizontal'
+          div className: 'scrollbar-content', style: {width: scrollWidth}
+
+  componentDidMount: ->
+    {orientation} = @props
+
+    unless orientation is 'vertical' or orientation is 'horizontal'
+      throw new Error("Must specify an orientation property of 'vertical' or 'horizontal'")
+
+  shouldComponentUpdate: (newProps) ->
+    switch @props.orientation
+      when 'vertical'
+        not isEqualForProperties(newProps, @props, 'scrollHeight', 'scrollTop')
+      when 'horizontal'
+        not isEqualForProperties(newProps, @props, 'scrollWidth', 'scrollLeft')
+
+  componentDidUpdate: ->
+    {orientation, scrollTop, scrollLeft} = @props
+    node = @getDOMNode()
+
+    switch orientation
+      when 'vertical'
+        node.scrollTop = scrollTop
+        @props.scrollTop = node.scrollTop # Ensure scrollTop reflects actual DOM without triggering another update
+      when 'horizontal'
+        node.scrollLeft = scrollLeft
+        @props.scrollLeft = node.scrollLeft # Ensure scrollLeft reflects actual DOM without triggering another update
+
+  onScroll: ->
+    {orientation, onScroll} = @props
+    node = @getDOMNode()
+
+    switch orientation
+      when 'vertical'
+        scrollTop = node.scrollTop
+        @props.scrollTop = scrollTop # Ensure scrollTop reflects actual DOM without triggering another update
+        onScroll(scrollTop)
+      when 'horizontal'
+        scrollLeft = node.scrollLeft
+        @props.scrollLeft = scrollLeft # Ensure scrollLeft reflects actual DOM without triggering another update
+        onScroll(scrollLeft)