| /******************************************************************************* |
| * Copyright (c) 2005, 2013 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: |
| * IBM Corporation - initial API and implementation |
| * WindRiver - Bug 192028 [Memory View] Memory view does not |
| * display memory blocks that do not reference IDebugTarget |
| * |
| *******************************************************************************/ |
| |
| package org.eclipse.debug.internal.ui.viewers.update; |
| |
| import java.util.Iterator; |
| |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.debug.core.DebugPlugin; |
| import org.eclipse.debug.core.IMemoryBlockListener; |
| import org.eclipse.debug.core.model.IMemoryBlock; |
| import org.eclipse.debug.core.model.IMemoryBlockRetrieval; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.IModelDelta; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.ModelDelta; |
| import org.eclipse.debug.internal.ui.viewers.provisional.AbstractModelProxy; |
| import org.eclipse.debug.internal.ui.views.memory.MemoryViewUtil; |
| import org.eclipse.debug.ui.memory.IMemoryRendering; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.jface.viewers.StructuredSelection; |
| import org.eclipse.jface.viewers.StructuredViewer; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.ui.progress.UIJob; |
| |
| public class MemoryRetrievalProxy extends AbstractModelProxy implements IMemoryBlockListener { |
| private IMemoryBlockRetrieval fRetrieval; |
| |
| public MemoryRetrievalProxy(IMemoryBlockRetrieval retrieval) { |
| fRetrieval = retrieval; |
| |
| } |
| |
| @Override |
| public void memoryBlocksAdded(IMemoryBlock[] memory) { |
| IMemoryBlock[] allMB = DebugPlugin.getDefault().getMemoryBlockManager().getMemoryBlocks(fRetrieval); |
| int lastIndex = allMB.length - memory.length; |
| ModelDelta delta = new ModelDelta(fRetrieval, 0, IModelDelta.NO_CHANGE, allMB.length); |
| |
| for (int i = 0; i < memory.length; i++) { |
| IMemoryBlockRetrieval retrieval = MemoryViewUtil.getMemoryBlockRetrieval(memory[i]); |
| |
| if (retrieval != null) { |
| if (retrieval == fRetrieval) { |
| // select the newly added memory block |
| delta.addNode(memory[i], lastIndex + i, IModelDelta.ADDED | IModelDelta.SELECT, 0); |
| } |
| } |
| } |
| |
| fireModelChanged(delta); |
| } |
| |
| @Override |
| public void memoryBlocksRemoved(final IMemoryBlock[] memory) { |
| |
| UIJob job = new UIJob("memory blocks removed") { //$NON-NLS-1$ |
| |
| @Override |
| public IStatus runInUIThread(IProgressMonitor monitor) { |
| ModelDelta delta = new ModelDelta(fRetrieval, IModelDelta.NO_CHANGE); |
| |
| // find a memory block to select |
| |
| for (int i = 0; i < memory.length; i++) { |
| IMemoryBlockRetrieval retrieval = MemoryViewUtil.getMemoryBlockRetrieval(memory[i]); |
| |
| if (retrieval != null) { |
| if (retrieval == fRetrieval) { |
| // do not change selection if the memory block |
| // removed is not |
| // currently selected |
| // #getCurrentSelection must be run on the UI thread |
| if (isMemoryBlockSelected(getCurrentSelection(), memory[i])) { |
| addSelectDeltaNode(delta); |
| } |
| delta.addNode(memory[i], IModelDelta.REMOVED); |
| } |
| } |
| } |
| |
| fireModelChanged(delta); |
| return Status.OK_STATUS; |
| } |
| }; |
| job.setSystem(true); |
| job.schedule(); |
| } |
| |
| @Override |
| public void init(IPresentationContext context) { |
| super.init(context); |
| DebugPlugin.getDefault().getMemoryBlockManager().addListener(this); |
| } |
| |
| @Override |
| public void installed(Viewer viewer) { |
| super.installed(viewer); |
| |
| // Set the initial selection when the proxy is installed |
| // Otherwise, rendering pane cannot be populated. |
| setInitialSelection(); |
| } |
| |
| /** |
| * Set the initial memory block selection when the proxy is installed. This |
| * is done to ensure that when the memory view is opened, there is an |
| * initial selection. Otherwise, the Rendering Pane will show up as blank. |
| * |
| * @since 3.4 |
| */ |
| protected void setInitialSelection() { |
| IMemoryBlock[] allMB = DebugPlugin.getDefault().getMemoryBlockManager().getMemoryBlocks(fRetrieval); |
| if (allMB.length > 0) { |
| ModelDelta delta = new ModelDelta(fRetrieval, 0, IModelDelta.NO_CHANGE, allMB.length); |
| delta.addNode(allMB[0], 0, IModelDelta.SELECT, 0); |
| fireModelChanged(delta); |
| } |
| } |
| |
| @Override |
| public synchronized void dispose() { |
| super.dispose(); |
| DebugPlugin.getDefault().getMemoryBlockManager().removeListener(this); |
| } |
| |
| private void addSelectDeltaNode(ModelDelta delta) { |
| IMemoryBlock[] memoryBlocks = DebugPlugin.getDefault().getMemoryBlockManager().getMemoryBlocks(fRetrieval); |
| if (memoryBlocks != null && memoryBlocks.length > 0) { |
| delta.addNode(memoryBlocks[0], IModelDelta.SELECT); |
| } |
| } |
| |
| private IStructuredSelection getCurrentSelection() { |
| Viewer viewer = getViewer(); |
| if (viewer instanceof StructuredViewer) { |
| StructuredViewer sv = (StructuredViewer) viewer; |
| ISelection selection = sv.getSelection(); |
| if (selection instanceof IStructuredSelection) { |
| return (IStructuredSelection) selection; |
| } |
| } |
| return StructuredSelection.EMPTY; |
| } |
| |
| private boolean isMemoryBlockSelected(IStructuredSelection selection, IMemoryBlock memoryBlock) { |
| if (!selection.isEmpty()) { |
| Iterator<?> iter = selection.iterator(); |
| while (iter.hasNext()) { |
| Object sel = iter.next(); |
| if (sel == memoryBlock) { |
| return true; |
| } |
| |
| if (sel instanceof IMemoryRendering) { |
| if (((IMemoryRendering) sel).getMemoryBlock() == memoryBlock) { |
| return true; |
| } |
| } |
| } |
| } |
| return false; |
| } |
| } |