/*
* Copyright (c) 2011, 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.internal.actions;
import com.google.dart.tools.ui.DartPluginImages;
import com.google.dart.tools.ui.actions.ActionMessages;
import com.google.dart.tools.ui.actions.InstrumentedAction;
import com.google.dart.tools.ui.instrumentation.UIInstrumentationBuilder;
import com.google.dart.tools.ui.internal.text.DartHelpContextIds;
import org.eclipse.core.runtime.Assert;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.widgets.Event;
import org.eclipse.ui.PlatformUI;
/**
* An {@link Action} that will collapse all nodes in a given {@link TreeViewer}.
* <p>
* (see Eclipse Bug 210255, this bug was the request for this feature in the JDT.)
*/
public final class CollapseAllAction extends InstrumentedAction {
private final TreeViewer viewer;
public CollapseAllAction(TreeViewer viewer) {
super(ActionMessages.CollapseAllAction_label, DartPluginImages.DESC_ELCL_COLLAPSEALL);
Assert.isNotNull(viewer);
setToolTipText(ActionMessages.CollapseAllAction_tooltip);
setDescription(ActionMessages.CollapseAllAction_description);
PlatformUI.getWorkbench().getHelpSystem().setHelp(this, DartHelpContextIds.COLLAPSE_ALL_ACTION);
this.viewer = viewer;
}
@Override
protected void doRun(Event event, UIInstrumentationBuilder instrumentation) {
try {
viewer.getControl().setRedraw(false);
viewer.collapseAll();
} finally {
viewer.getControl().setRedraw(true);
}
}
}