| /******************************************************************************* |
| * Copyright (c) 2008 Standards for Technology in Automotive Retail and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * David Carver - initial API and implementation, bug 212330 |
| * |
| *******************************************************************************/ |
| |
| package org.eclipse.wst.xml.ui.internal.handlers; |
| |
| import org.eclipse.core.commands.ExecutionEvent; |
| import org.eclipse.core.commands.ExecutionException; |
| import org.eclipse.core.commands.IHandler; |
| import org.eclipse.ui.IEditorPart; |
| import org.eclipse.ui.handlers.HandlerUtil; |
| |
| public class CollapseAllHandler extends ExpandCollapseAllHandler implements IHandler { |
| |
| /** |
| * |
| */ |
| public CollapseAllHandler() { |
| super(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent) |
| */ |
| public Object execute(ExecutionEvent event) throws ExecutionException { |
| IEditorPart editorPart = HandlerUtil.getActiveEditor(event); |
| |
| viewer = getTableTreeViewerForEditorPart(editorPart); |
| |
| if (viewer != null) { |
| // temporarily set the visibility to false |
| // this has a HUGE performance benefit |
| boolean isVisible = viewer.getControl().getVisible(); |
| viewer.getControl().setVisible(false); |
| viewer.collapseAll(); |
| |
| // restore the previous visibility state |
| // |
| viewer.getControl().setVisible(isVisible); |
| } |
| |
| return null; |
| } |
| } |