/* * Copyright (c) 2013, the Dart project authors. * * Licensed under the Eclipse Public License v1.0 (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.eclipse.org/legal/epl-v10.html * * 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.google.dart.tools.ui.web.utils; import com.google.dart.tools.ui.actions.InstrumentedAction; import com.google.dart.tools.ui.instrumentation.UIInstrumentationBuilder; import com.google.dart.tools.ui.web.DartWebPlugin; import org.eclipse.jface.viewers.TreeViewer; import org.eclipse.swt.widgets.Event; /** * An action to collapse all the levels in a tree viewer. */ public class CollapseAllAction extends InstrumentedAction { private TreeViewer viewer; public CollapseAllAction(TreeViewer treeViewer) { super("Collapse All"); this.viewer = treeViewer; setImageDescriptor(DartWebPlugin.getImageDescriptor("collapse_all.gif")); } @Override protected void doRun(Event event, UIInstrumentationBuilder instrumentation) { try { viewer.getControl().setRedraw(false); viewer.collapseAll(); } finally { viewer.getControl().setRedraw(true); } } }