Close all editors in pane with meta-P

spec/app/editor-spec.coffee

@@ -2077,3 +2077,15 @@ describe "Editor", ->
       expect(atom.confirm).toHaveBeenCalled()
       expect(editor.getEditSessions().length).toBe 2
       expect(editor.getEditSessions()[0].buffer.isModified()).toBeTruthy()
+
+  describe ".destroyAllEditSessions()", ->
+    it "destroys every edit session", ->
+      rootView.open('sample.txt')
+      rootView.open('css.css')
+      rootView.open('coffee.coffee')
+      rootView.open('hello.rb')
+      expect(editor.getEditSessions().length).toBe 5
+      editor.setActiveEditSessionIndex(2)
+      editor.destroyAllEditSessions()
+      expect(editor.pane()).toBeUndefined()
+      expect(editor.getEditSessions().length).toBe 0

src/app/editor.coffee

@@ -177,6 +177,7 @@ class Editor extends View
         'editor:log-cursor-scope': @logCursorScope
         'editor:checkout-head-revision': @checkoutHead
         'editor:close-other-editors': @destroyInactiveEditSessions
+        'editor:close-all-editors': @destroyAllEditSessions
 
     documentation = {}
     for name, method of editorBindings
@@ -470,6 +471,12 @@ class Editor extends View
       index++ if @activeEditSession is @editSessions[index]
       @destroyEditSessionIndex(index, destroyIndex) if @editSessions[index]
     destroyIndex(0)
+
+  destroyAllEditSessions: ->
+    destroyIndex = (index) =>
+      @destroyEditSessionIndex(index, destroyIndex) if @editSessions[index]
+    destroyIndex(0)
+
   loadNextEditSession: ->
     nextIndex = (@getActiveEditSessionIndex() + 1) % @editSessions.length
     @setActiveEditSessionIndex(nextIndex)

src/app/keymaps/editor.cson

@@ -33,3 +33,4 @@
   'meta-u': 'editor:upper-case'
   'meta-U': 'editor:lower-case'
   'alt-meta-w': 'editor:close-other-editors'
+  'meta-P': 'editor:close-all-editors'