platform/platform-impl/src/com/intellij/ide/actions/UndoAction.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package com.intellij.ide.actions;
  17
  18 import com.intellij.openapi.command.undo.UndoManager;
  19 import com.intellij.openapi.fileEditor.FileEditor;
  20
  21 public class UndoAction extends UndoRedoAction {
  22   @Override
  23   protected boolean isAvailable(FileEditor editor, UndoManager undoManager) {
  24     return undoManager.isUndoAvailable(editor);
  25   }
  26
  27   @Override
  28   protected void perform(FileEditor editor, UndoManager undoManager) {
  29     undoManager.undo(editor);
  30   }
  31
  32   @Override
  33   protected String formatAction(FileEditor editor, UndoManager undoManager) {
  34     return undoManager.formatAvailableUndoAction(editor);
  35   }
  36
  37   protected String getActionMessageKey() {
  38     return "action.$Undo.text";
  39   }
  40
  41   @Override
  42   protected String getActionDescriptionMessageKey() {
  43     return "action.$Undo.description";
  44   }
  45
  46   @Override
  47   protected String getActionDescriptionEmptyMessageKey() {
  48     return "action.$Undo.description.empty";
  49   }
  50 }