🐧 Add keymap implementation to reorder tabs in linux

keymaps/linux.cson

@@ -12,6 +12,8 @@
   'ctrl-alt-s': 'application:run-all-specs'
   'ctrl-alt-o': 'application:open-dev'
   'ctrl-shift-o': 'application:open-folder'
+  'ctrl-shift-pageup': 'pane:move-item-to-left'
+  'ctrl-shift-pagedown': 'pane:move-item-to-right'
   'F11': 'window:toggle-full-screen'
 
   # Sublime Parity

src/pane-element.coffee

@@ -119,6 +119,8 @@ atom.commands.add 'atom-pane',
   'pane:show-item-7': -> @getModel().activateItemAtIndex(6)
   'pane:show-item-8': -> @getModel().activateItemAtIndex(7)
   'pane:show-item-9': -> @getModel().activateItemAtIndex(8)
+  'pane:move-item-to-right': -> @getModel().moveItemToRight()
+  'pane:move-item-to-left': -> @getModel().moveItemToLeft()
   'pane:split-left': -> @getModel().splitLeft(copyActiveItem: true)
   'pane:split-right': -> @getModel().splitRight(copyActiveItem: true)
   'pane:split-up': -> @getModel().splitUp(copyActiveItem: true)

src/pane.coffee

@@ -289,6 +289,18 @@ class Pane extends Model
     else
       @activateItemAtIndex(@items.length - 1)
 
+  # Public: Move the active tab to the right.
+  moveItemToRight: ->
+    index = @getActiveItemIndex()
+    rightItemIndex = index + 1
+    @moveItem(@getActiveItem(), rightItemIndex) unless rightItemIndex > @items.length - 1
+
+  # Public: Move the active tab to the left
+  moveItemToLeft: ->
+    index = @getActiveItemIndex()
+    leftItemIndex = index - 1
+    @moveItem(@getActiveItem(), leftItemIndex) unless leftItemIndex < 0
+
   # Public: Get the index of the active item.
   #
   # Returns a {Number}.