| /******************************************************************************* |
| * Copyright (c) 2006, 2008 IBM Corporation 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: |
| * Takashi ITOH - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.actf.visualization.gui.ui.views; |
| |
| import java.util.List; |
| import java.util.Vector; |
| |
| import org.eclipse.actf.accservice.swtbridge.AccessibleObject; |
| import org.eclipse.actf.accservice.swtbridge.MSAA; |
| import org.eclipse.actf.visualization.gui.flash.FlashUtil; |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.jface.viewers.Viewer; |
| |
| |
| public class MSAATreeContentProvider implements ITreeContentProvider { |
| |
| public boolean hideHtml = false; |
| public boolean showOffscreen = false; |
| |
| private static MSAATreeContentProvider instance = new MSAATreeContentProvider(); |
| |
| public static MSAATreeContentProvider getDefault() { |
| if( null == instance ) { |
| instance = new MSAATreeContentProvider(); |
| } |
| return instance; |
| } |
| |
| public Object[] getChildren(Object parentElement) { |
| if (parentElement instanceof AccessibleObject) { |
| AccessibleObject[] accChildren = ((AccessibleObject) parentElement).getChildren(); |
| List<AccessibleObject> childList = new Vector<AccessibleObject>(); |
| for (int i = 0; i < accChildren.length; i++) { |
| AccessibleObject accChild = accChildren[i]; |
| if( null != accChild ) { |
| int accState = accChild.getAccState(); |
| if ( 0 == (accState & MSAA.STATE_INVISIBLE)) { |
| childList.add(accChild); |
| } |
| else if ( showOffscreen && 0 != (accState & MSAA.STATE_OFFSCREEN)) { |
| childList.add(accChild); |
| } |
| } |
| } |
| return childList.toArray(); |
| } |
| return new Object[0]; |
| } |
| |
| public Object getParent(Object element) { |
| return null; |
| } |
| |
| public boolean hasChildren(Object element) { |
| if (element instanceof AccessibleObject) { |
| return ((AccessibleObject) element).getChildCount() > 0; |
| } |
| return false; |
| } |
| |
| public Object[] getElements(Object inputElement) { |
| Object[] elements; |
| if (inputElement instanceof Object[]) { |
| elements = (Object[]) inputElement; |
| } else { |
| elements = getChildren(inputElement); |
| } |
| if (hideHtml) { |
| return FlashUtil.getFlashElements(elements); |
| } |
| return elements; |
| } |
| |
| public void dispose() { |
| } |
| |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| if (oldInput instanceof Object[]) { |
| oldInput = ((Object[]) oldInput)[0]; |
| } |
| if (oldInput instanceof AccessibleObject) { |
| try { |
| ((AccessibleObject) oldInput).dispose(); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| } |
| } |