/*
* Copyright 2000-2015 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.diff.actions;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.EmptyAction;
import com.intellij.openapi.actionSystem.IdeActions;
import com.intellij.openapi.command.undo.UndoManager;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.fileEditor.TextEditor;
import com.intellij.openapi.fileEditor.impl.text.TextEditorProvider;
import com.intellij.openapi.project.DumbAwareAction;
import com.intellij.openapi.project.Project;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import javax.swing.*;
public class ProxyUndoRedoAction extends DumbAwareAction {
@NotNull private final UndoManager myUndoManager;
@NotNull private final TextEditor myEditor;
private final boolean myUndo;
private ProxyUndoRedoAction(@NotNull UndoManager manager, @NotNull TextEditor editor, boolean undo) {
myUndoManager = manager;
myEditor = editor;
myUndo = undo;
}
public static void register(@Nullable Project project, @NotNull Editor editor, @NotNull JComponent component) {
UndoManager undoManager = project != null ? UndoManager.getInstance(project) : UndoManager.getGlobalInstance();
TextEditor textEditor = TextEditorProvider.getInstance().getTextEditor(editor);
if (undoManager != null) {
EmptyAction.setupAction(new ProxyUndoRedoAction(undoManager, textEditor, true), IdeActions.ACTION_UNDO, component);
EmptyAction.setupAction(new ProxyUndoRedoAction(undoManager, textEditor, false), IdeActions.ACTION_REDO, component);
}
}
@Override
public void update(AnActionEvent e) {
e.getPresentation().setEnabled(myUndo ? myUndoManager.isUndoAvailable(myEditor) : myUndoManager.isRedoAvailable(myEditor));
}
@Override
public void actionPerformed(AnActionEvent e) {
if (myUndo) {
myUndoManager.undo(myEditor);
}
else {
myUndoManager.redo(myEditor);
}
}
}