added delete to end of line

spec/editor-spec.coffee

@@ -1831,6 +1831,32 @@ describe "Editor", ->
           expect(buffer.lineForRow(1)).toBe '  var sort = function(it) {'
           expect(buffer.lineForRow(2)).toBe 'if (items.length <= 1) return items;'
 
+    describe '.deleteToEndOfLine()', ->
+      describe 'when no text is selected', ->
+        it 'deletes all text between the cursor and the end of the line', ->
+          editor.setCursorBufferPosition([1, 24])
+          editor.addCursorAtBufferPosition([2, 5])
+          [cursor1, cursor2] = editor.getCursors()
+
+          editor.deleteToEndOfLine()
+          expect(buffer.lineForRow(1)).toBe '  var sort = function(it'
+          expect(buffer.lineForRow(2)).toBe '    i'
+          expect(cursor1.getBufferPosition()).toEqual [1, 24]
+          expect(cursor2.getBufferPosition()).toEqual [2, 5]
+
+        describe 'when at the end of the line', ->
+          it 'deletes the next newline', ->
+            editor.setCursorBufferPosition([1, 30])
+            editor.deleteToEndOfLine()
+            expect(buffer.lineForRow(1)).toBe '  var sort = function(items) {    if (items.length <= 1) return items;'
+
+      describe 'when text is selected', ->
+        it 'deletes all text to end of the line starting from selection', ->
+          editor.setSelectedBufferRanges([[[1, 24], [1, 27]], [[2, 0], [2, 4]]])
+          editor.deleteToEndOfLine()
+          expect(buffer.lineForRow(1)).toBe '  var sort = function(it'
+          expect(buffer.lineForRow(2)).toBe ''
+
     describe ".deleteToBeginningOfLine()", ->
       describe "when no text is selected", ->
         it "deletes all text between the cursor and the beginning of the line", ->

src/editor-component.coffee

@@ -291,6 +291,7 @@ EditorComponent = React.createClass
       'editor:consolidate-selections': @consolidateSelections
       'editor:delete-to-beginning-of-word': => editor.deleteToBeginningOfWord()
       'editor:delete-to-beginning-of-line': => editor.deleteToBeginningOfLine()
+      'editor:delete-to-end-of-line': => editor.deleteToEndOfLine()
       'editor:delete-to-end-of-word': => editor.deleteToEndOfWord()
       'editor:delete-line': => editor.deleteLine()
       'editor:cut-to-end-of-line': => editor.cutToEndOfLine()

src/editor-view.coffee

@@ -157,6 +157,7 @@ class EditorView extends View
       'editor:consolidate-selections': (event) => @consolidateSelections(event)
       'editor:delete-to-beginning-of-word': => @editor.deleteToBeginningOfWord()
       'editor:delete-to-beginning-of-line': => @editor.deleteToBeginningOfLine()
+      'editor:delete-to-end-of-line': => @editor.deleteToEndOfLine()
       'editor:delete-to-end-of-word': => @editor.deleteToEndOfWord()
       'editor:delete-line': => @editor.deleteLine()
       'editor:cut-to-end-of-line': => @editor.cutToEndOfLine()

src/editor.coffee

@@ -112,6 +112,7 @@ TextMateScopeSelector = require('first-mate').ScopeSelector
 # - {::deleteToBeginningOfWord}
 # - {::deleteToBeginningOfLine}
 # - {::delete}
+# - {::deleteToEndOfLine}
 # - {::deleteToEndOfWord}
 # - {::deleteLine}
 # - {::cutSelectedText}
@@ -689,6 +690,12 @@ class Editor extends Model
   delete: ->
     @mutateSelectedText (selection) -> selection.delete()
 
+  # Public: For each selection, if the selection is empty, delete all characters
+  # of the containing line following the cursor. Otherwise delete the selected
+  # text.
+  deleteToEndOfLine: ->
+    @mutateSelectedText (selection) -> selection.deleteToEndOfLine()
+
   # Public: For each selection, if the selection is empty, delete all characters
   # of the containing word following the cursor. Otherwise delete the selected
   # text.

src/selection.coffee

@@ -430,6 +430,16 @@ class Selection extends Model
         @selectRight()
     @deleteSelectedText()
 
+  # Public: Removes all characters from the end of the selection to the end of
+  # the current line (if no selection then the rest of the line).
+  # If the cursor is at the end of the line, deletes the newline.
+  deleteToEndOfLine: ->
+    if @isEmpty() and @cursor.isAtEndOfLine()
+      @delete()
+    else
+      @selectToEndOfLine()
+      @deleteSelectedText()
+
   # Public: Removes the selection or all characters from the start of the
   # selection to the end of the current word if nothing is selected.
   deleteToEndOfWord: ->