| /******************************************************************************* |
| * Copyright (c) 2010, 2012 Freescale Semiconductor. and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Freescale Semiconductor - initial API and implementation |
| * Axel Mueller - Bug 306555 - Add support for cast to type / view as array (IExpressions2) |
| * Jens Elmenthaler (Verigy) - Added Full GDB pretty-printing support (bug 302121) |
| *******************************************************************************/ |
| package org.eclipse.cdt.dsf.gdb.internal.ui.viewmodel; |
| |
| import org.eclipse.cdt.dsf.concurrent.DsfRunnable; |
| import org.eclipse.cdt.dsf.concurrent.RequestMonitor; |
| import org.eclipse.cdt.dsf.debug.internal.ui.viewmodel.DsfCastToTypeSupport; |
| import org.eclipse.cdt.dsf.debug.service.IExpressions.IExpressionDMContext; |
| import org.eclipse.cdt.dsf.debug.ui.viewmodel.variable.SyncVariableDataAccess; |
| import org.eclipse.cdt.dsf.debug.ui.viewmodel.variable.VariableVMNode; |
| import org.eclipse.cdt.dsf.debug.ui.viewmodel.variable.VariableVMProvider; |
| import org.eclipse.cdt.dsf.gdb.IGdbDebugPreferenceConstants; |
| import org.eclipse.cdt.dsf.gdb.internal.ui.GdbUIPlugin; |
| import org.eclipse.cdt.dsf.gdb.internal.ui.viewmodel.GdbVariableVMNode.IncompleteChildrenVMC; |
| import org.eclipse.cdt.dsf.service.DsfSession; |
| import org.eclipse.cdt.dsf.ui.viewmodel.AbstractVMAdapter; |
| import org.eclipse.cdt.dsf.ui.viewmodel.IRootVMNode; |
| import org.eclipse.cdt.dsf.ui.viewmodel.IVMNode; |
| import org.eclipse.cdt.dsf.ui.viewmodel.datamodel.RootDMVMNode; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext; |
| import org.eclipse.jface.preference.IPreferenceStore; |
| import org.eclipse.jface.util.IPropertyChangeListener; |
| import org.eclipse.jface.util.PropertyChangeEvent; |
| import org.eclipse.jface.viewers.DoubleClickEvent; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.jface.viewers.ITreeSelection; |
| import org.eclipse.jface.viewers.TreePath; |
| |
| /** |
| * A specialization of VariableVMProvider that uses a GDB-specific variable VM |
| * node. To understand why this is necessary, see GdbVariableVMNode. |
| */ |
| public class GdbVariableVMProvider extends VariableVMProvider { |
| |
| private IPropertyChangeListener fPreferencesListener; |
| |
| /** |
| * Constructor (passthru) |
| */ |
| public GdbVariableVMProvider(AbstractVMAdapter adapter, IPresentationContext context, DsfSession session) { |
| super(adapter, context, session); |
| |
| final IPreferenceStore store = GdbUIPlugin.getDefault().getPreferenceStore(); |
| |
| Integer childCountLimit = store |
| .getInt(IGdbDebugPreferenceConstants.PREF_INITIAL_CHILD_COUNT_LIMIT_FOR_COLLECTIONS); |
| if (childCountLimit != 0) { |
| getPresentationContext().setProperty( |
| IGdbDebugPreferenceConstants.PREF_INITIAL_CHILD_COUNT_LIMIT_FOR_COLLECTIONS, childCountLimit); |
| } |
| |
| fPreferencesListener = new IPropertyChangeListener() { |
| @Override |
| public void propertyChange(final PropertyChangeEvent event) { |
| handlePropertyChanged(store, event); |
| } |
| }; |
| store.addPropertyChangeListener(fPreferencesListener); |
| } |
| |
| @Override |
| public void dispose() { |
| super.dispose(); |
| |
| final IPreferenceStore store = GdbUIPlugin.getDefault().getPreferenceStore(); |
| store.removePropertyChangeListener(fPreferencesListener); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.cdt.dsf.debug.ui.viewmodel.variable.VariableVMProvider#configureLayout(org.eclipse.cdt.dsf.debug.ui.viewmodel.variable.SyncVariableDataAccess) |
| */ |
| @Override |
| protected void configureLayout() { |
| // Create the variable data access routines. |
| SyncVariableDataAccess varAccess = new SyncVariableDataAccess(getSession()); |
| |
| // Create the top level node to deal with the root selection. |
| IRootVMNode rootNode = new RootDMVMNode(this); |
| setRootNode(rootNode); |
| |
| // Create the next level which represents members of structs/unions/enums and elements of arrays. |
| IVMNode subExpressioNode = new GdbVariableVMNode(this, getSession(), varAccess); |
| addChildNodes(rootNode, new IVMNode[] { subExpressioNode }); |
| |
| /* Wire up the casting support. IExpressions2 service is always available |
| * for gdb. No need to call hookUpCastingSupport */ |
| ((VariableVMNode) subExpressioNode) |
| .setCastToTypeSupport(new DsfCastToTypeSupport(getSession(), GdbVariableVMProvider.this, varAccess)); |
| |
| // Configure the sub-expression node to be a child of itself. This way the content |
| // provider will recursively drill-down the variable hierarchy. |
| addChildNodes(subExpressioNode, new IVMNode[] { subExpressioNode }); |
| } |
| |
| @Override |
| public void handleEvent(Object event, final RequestMonitor rm) { |
| if (event instanceof DoubleClickEvent && !isDisposed()) { |
| |
| final ISelection selection = ((DoubleClickEvent) event).getSelection(); |
| if (selection instanceof IStructuredSelection) { |
| |
| Object element = ((IStructuredSelection) selection).getFirstElement(); |
| if (element instanceof IncompleteChildrenVMC) { |
| |
| IncompleteChildrenVMC incompleteChildrenVmc = ((IncompleteChildrenVMC) element); |
| IVMNode node = incompleteChildrenVmc.getVMNode(); |
| if (node instanceof GdbVariableVMNode && node.getVMProvider() == this) { |
| |
| if (selection instanceof ITreeSelection) { |
| |
| ITreeSelection treeSelection = (ITreeSelection) selection; |
| TreePath path = treeSelection.getPaths()[0]; |
| IExpressionDMContext exprCtx = incompleteChildrenVmc.getParentDMContext(); |
| ((GdbVariableVMNode) node).incrementChildCountLimit(exprCtx); |
| |
| // replace double click event with the fetch more children event. |
| final FetchMoreChildrenEvent fetchMoreChildrenEvent = new FetchMoreChildrenEvent(exprCtx, |
| path); |
| getExecutor().execute(new DsfRunnable() { |
| @Override |
| public void run() { |
| handleEvent(fetchMoreChildrenEvent, rm); |
| } |
| }); |
| |
| return; |
| } |
| } |
| } |
| } |
| } |
| |
| super.handleEvent(event, rm); |
| } |
| |
| /** |
| * @param store |
| * @param event |
| * |
| * @since 3.0 |
| */ |
| protected void handlePropertyChanged(final IPreferenceStore store, final PropertyChangeEvent event) { |
| String property = event.getProperty(); |
| if (IGdbDebugPreferenceConstants.PREF_INITIAL_CHILD_COUNT_LIMIT_FOR_COLLECTIONS.equals(property)) { |
| Integer childCountLimit = store |
| .getInt(IGdbDebugPreferenceConstants.PREF_INITIAL_CHILD_COUNT_LIMIT_FOR_COLLECTIONS); |
| |
| if (childCountLimit != 0) { |
| getPresentationContext().setProperty( |
| IGdbDebugPreferenceConstants.PREF_INITIAL_CHILD_COUNT_LIMIT_FOR_COLLECTIONS, childCountLimit); |
| } else { |
| getPresentationContext() |
| .setProperty(IGdbDebugPreferenceConstants.PREF_INITIAL_CHILD_COUNT_LIMIT_FOR_COLLECTIONS, null); |
| } |
| |
| getExecutor().execute(new DsfRunnable() { |
| @Override |
| public void run() { |
| handleEvent(event); |
| } |
| }); |
| } |
| } |
| } |