Editor handles delete-to-end-of-word, plus alt-d and alt-delete bindings for it

spec/atom/editor-spec.coffee

@@ -1473,21 +1473,22 @@ describe "Editor", ->
           expect(editor.buffer.lineForRow(0)).toBe 'var qsort = function () {'
 
     describe "backspace-to-beginning-of-word", ->
-      it "deletes all text between the cursor and the beginning of the word", ->
-        editor.setCursorBufferPosition([1, 24])
-        editor.addCursorAtBufferPosition([2, 5])
-        [cursor1, cursor2] = editor.getCursors()
+      describe "when no text is selected", ->
+        it "deletes all text between the cursor and the beginning of the word", ->
+          editor.setCursorBufferPosition([1, 24])
+          editor.addCursorAtBufferPosition([2, 5])
+          [cursor1, cursor2] = editor.getCursors()
 
-        editor.trigger 'backspace-to-beginning-of-word'
-        expect(buffer.lineForRow(1)).toBe '  var sort = function(ems) {'
-        expect(buffer.lineForRow(2)).toBe '    f (items.length <= 1) return items;'
-        expect(cursor1.getBufferPosition()).toEqual [1, 22]
-        expect(cursor2.getBufferPosition()).toEqual [2, 4]
+          editor.trigger 'backspace-to-beginning-of-word'
+          expect(buffer.lineForRow(1)).toBe '  var sort = function(ems) {'
+          expect(buffer.lineForRow(2)).toBe '    f (items.length <= 1) return items;'
+          expect(cursor1.getBufferPosition()).toEqual [1, 22]
+          expect(cursor2.getBufferPosition()).toEqual [2, 4]
 
-        editor.trigger 'backspace-to-beginning-of-word'
-        expect(buffer.lineForRow(1)).toBe '  var sort = functionems) f (items.length <= 1) return items;'
-        expect(cursor1.getBufferPosition()).toEqual [1, 21]
-        expect(cursor2.getBufferPosition()).toEqual [1, 26]
+          editor.trigger 'backspace-to-beginning-of-word'
+          expect(buffer.lineForRow(1)).toBe '  var sort = functionems) f (items.length <= 1) return items;'
+          expect(cursor1.getBufferPosition()).toEqual [1, 21]
+          expect(cursor2.getBufferPosition()).toEqual [1, 26]
 
       describe "when text is selected", ->
         it "deletes only selected text", ->
@@ -1520,6 +1521,31 @@ describe "Editor", ->
           editor.trigger keydownEvent('delete')
           expect(buffer.lineForRow(12)).toBe '};'
 
+    describe "delete-to-end-of-word", ->
+      describe "when no text is selected", ->
+        it "deletes to the end of the word", ->
+          editor.setCursorBufferPosition([1, 24])
+          editor.addCursorAtBufferPosition([2, 5])
+          [cursor1, cursor2] = editor.getCursors()
+
+          editor.trigger 'delete-to-end-of-word'
+          expect(buffer.lineForRow(1)).toBe '  var sort = function(it) {'
+          expect(buffer.lineForRow(2)).toBe '    i (items.length <= 1) return items;'
+          expect(cursor1.getBufferPosition()).toEqual [1, 24]
+          expect(cursor2.getBufferPosition()).toEqual [2, 5]
+
+          editor.trigger 'delete-to-end-of-word'
+          expect(buffer.lineForRow(1)).toBe '  var sort = function(it {'
+          expect(buffer.lineForRow(2)).toBe '    iitems.length <= 1) return items;'
+          expect(cursor1.getBufferPosition()).toEqual [1, 24]
+          expect(cursor2.getBufferPosition()).toEqual [2, 5]
+
+      describe "when text is selected", ->
+        it "deletes only selected text", ->
+          editor.setSelectionBufferRange([[1, 24], [1, 27]])
+          editor.trigger 'delete-to-end-of-word'
+          expect(buffer.lineForRow(1)).toBe '  var sort = function(it) {'
+
     describe "when undo/redo events are triggered on the editor", ->
       it "undoes/redoes the last change", ->
         buffer.insert [0, 0], "foo"

src/atom/composite-selection.coffee

@@ -58,6 +58,9 @@ class CompositeSeleciton
   delete: ->
     @modifySelectedText (selection) -> selection.delete()
 
+  deleteToEndOfWord: ->
+    @modifySelectedText (selection) -> selection.deleteToEndOfWord()
+
   selectToScreenPosition: (position) ->
     @getLastSelection().selectToScreenPosition(position)
 

src/atom/editor.coffee

@@ -93,6 +93,7 @@ class Editor extends View
     @on 'backspace', => @backspace()
     @on 'backspace-to-beginning-of-word', => @backspaceToBeginningOfWord()
     @on 'delete', => @delete()
+    @on 'delete-to-end-of-word', => @deleteToEndOfWord()
     @on 'cut', => @cutSelection()
     @on 'copy', => @copySelection()
     @on 'paste', => @paste()
@@ -407,6 +408,7 @@ class Editor extends View
   backspace: -> @compositeSelection.backspace()
   backspaceToBeginningOfWord: -> @compositeSelection.backspaceToBeginningOfWord()
   delete: -> @compositeSelection.delete()
+  deleteToEndOfWord: -> @compositeSelection.deleteToEndOfWord()
 
   setText: (text) -> @buffer.setText(text)
   getText: -> @buffer.getText()

src/atom/keybindings/apple.coffee

@@ -12,3 +12,4 @@ window.keymap.bindKeys '.editor'
   'alt-shift-left': 'select-to-beginning-of-word'
   'alt-shift-right': 'select-to-end-of-word'
   'alt-backspace': 'backspace-to-beginning-of-word'
+  'alt-delete': 'delete-to-end-of-word'

src/atom/keybindings/emacs.coffee

@@ -10,3 +10,4 @@ window.keymap.bindKeys '.editor',
   'ctrl-h': 'backspace'
   'ctrl-d': 'delete'
   'alt-h': 'backspace-to-beginning-of-word'
+  'alt-d': 'delete-to-end-of-word'

src/atom/selection.coffee

@@ -137,6 +137,10 @@ class Selection extends View
     @selectRight() if @isEmpty()
     @deleteSelectedText()
 
+  deleteToEndOfWord: ->
+    @selectToEndOfWord() if @isEmpty()
+    @deleteSelectedText()
+
   deleteSelectedText: ->
     range = @getBufferRange()
     @editor.buffer.delete(range) unless range.isEmpty()