Atom: Merge and close panes

init.coffee

# Derived from the solutions discussed at github.com/atom/atom/issues/380. In
# particular, I converted one of the Javascript solutions to Coffeescript and
# added my own modifications to ensure that panes get closed on deletion.


atom.commands.add "atom-workspace", "custom:pane-merge", ->
  panes = atom.workspace.getCenter().getPanes()
  firstPane = panes.shift()

  for pane in panes
    for item in pane.getItems()
      if (firstPane.getItems().find(findItemInPane(item)))
        pane.destroyItem(item)
      else
        pane.moveItemToPane(item, firstPane)
    pane.destroy()

findItemInPane = (nonFirstPaneItem) ->
  (firstPaneItem) ->
    if Object.getPrototypeOf(firstPaneItem).constructor.name == 'TextEditor' and Object.getPrototypeOf(nonFirstPaneItem).constructor.name == 'TextEditor'
      firstPaneItem.getPath() == nonFirstPaneItem.getPath()
    else
      firstPaneItem.uri == nonFirstPaneItem.uri