Handle save-as on pane. Replace 'editor:save-as' w/ 'core:save-as'

Pane will only show the saveAs dialog if the item has a `saveAs` method.

spec/app/pane-spec.coffee

@@ -306,6 +306,27 @@ describe "Pane", ->
           pane.trigger 'core:save'
           expect(atom.showSaveDialog).not.toHaveBeenCalled()
 
+  describe "core:save-as", ->
+    beforeEach ->
+      spyOn(atom, 'showSaveDialog')
+
+    describe "when the current item has a saveAs method", ->
+      it "opens the save dialog and calls saveAs on the item with the selected path", ->
+        spyOn(editSession2, 'saveAs')
+        pane.showItem(editSession2)
+
+        pane.trigger 'core:save-as'
+
+        expect(atom.showSaveDialog).toHaveBeenCalled()
+        atom.showSaveDialog.argsForCall[0][0]('/selected/path')
+        expect(editSession2.saveAs).toHaveBeenCalledWith('/selected/path')
+
+    describe "when the current item does not have a saveAs method", ->
+      it "does nothing", ->
+        expect(pane.activeItem.saveAs).toBeUndefined()
+        pane.trigger 'core:save-as'
+        expect(atom.showSaveDialog).not.toHaveBeenCalled()
+
   describe "pane:show-next-item and pane:show-previous-item", ->
     it "advances forward/backward through the pane's items, looping around at either end", ->
       expect(pane.activeItem).toBe view1

src/app/editor.coffee

@@ -152,7 +152,6 @@ class Editor extends View
         'core:select-down': @selectDown
         'core:select-to-top': @selectToTop
         'core:select-to-bottom': @selectToBottom
-        'editor:save-as': @saveAs
         'editor:newline-below': @insertNewlineBelow
         'editor:newline-above': @insertNewlineAbove
         'editor:toggle-soft-tabs': @toggleSoftTabs
@@ -610,12 +609,6 @@ class Editor extends View
       @removeClass 'soft-wrap'
       $(window).off 'resize', @_setSoftWrapColumn
 
-  saveAs: (session=@activeEditSession, onSuccess) ->
-      atom.showSaveDialog (path) =>
-        if path
-          session.saveAs(path)
-          onSuccess?()
-
   autosave: ->
     @save() if @getPath()?
 

src/app/keymaps/atom.cson

@@ -1,5 +1,6 @@
 'body':
   'meta-s': 'core:save'
+  'meta-S': 'core:save-as'
   'enter': 'core:confirm'
   'escape': 'core:cancel'
   'meta-w': 'core:close'

src/app/keymaps/editor.cson

@@ -2,7 +2,6 @@
   'meta-T': 'editor:undo-close-session'
 
 '.editor':
-  'meta-S': 'editor:save-as'
   'enter': 'editor:newline'
   'meta-enter': 'editor:newline-below'
   'meta-shift-enter': 'editor:newline-above'

src/app/pane.coffee

@@ -22,6 +22,7 @@ class Pane extends View
 
     @command 'core:close', @destroyActiveItem
     @command 'core:save', @saveActiveItem
+    @command 'core:save-as', @saveActiveItemAs
     @command 'pane:show-next-item', @showNextItem
     @command 'pane:show-previous-item', @showPreviousItem
     @command 'pane:split-left', => @splitLeft()
@@ -119,12 +120,20 @@ class Pane extends View
   saveActiveItem: =>
     @saveItem(@activeItem)
 
+  saveActiveItemAs: =>
+    @saveItemAs(@activeItem)
+
   saveItem: (item, nextAction) ->
     if item.getPath?()
       item.save()
       nextAction?()
-    else if item.saveAs?
-      atom.showSaveDialog (path) ->
+    else
+      @saveItemAs(item, nextAction)
+
+  saveItemAs: (item, nextAction) ->
+    return unless item.saveAs?
+    atom.showSaveDialog (path) =>
+      if path
         item.saveAs(path)
         nextAction?()