diff options
Diffstat (limited to 'debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/actions/breakpoints/AddWatchpointOnVariableActionDelegate.java')
| -rw-r--r-- | debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/actions/breakpoints/AddWatchpointOnVariableActionDelegate.java | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/actions/breakpoints/AddWatchpointOnVariableActionDelegate.java b/debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/actions/breakpoints/AddWatchpointOnVariableActionDelegate.java new file mode 100644 index 00000000000..66a5d5e03de --- /dev/null +++ b/debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/actions/breakpoints/AddWatchpointOnVariableActionDelegate.java @@ -0,0 +1,179 @@ +/******************************************************************************* + * Copyright (c) 2007, 2010 Nokia 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: + * Nokia - initial API and implementation + *******************************************************************************/ +package org.eclipse.cdt.debug.internal.ui.actions.breakpoints; + + +import org.eclipse.cdt.debug.internal.core.CRequest; +import org.eclipse.cdt.debug.internal.core.ICWatchpointTarget; +import org.eclipse.cdt.debug.internal.ui.actions.ActionMessages; +import org.eclipse.cdt.debug.ui.CDebugUIPlugin; +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.jface.action.IAction; +import org.eclipse.jface.dialogs.ErrorDialog; +import org.eclipse.jface.viewers.ISelection; +import org.eclipse.jface.viewers.StructuredSelection; +import org.eclipse.jface.viewers.TreeSelection; +import org.eclipse.jface.window.Window; +import org.eclipse.ui.IObjectActionDelegate; +import org.eclipse.ui.IWorkbenchPart; +import org.eclipse.ui.progress.WorkbenchJob; + +/** + * Invoked when user right clicks on an element in the Variables or Expressions + * view and selects 'Add Watchpoint (C/C++)' + */ +public class AddWatchpointOnVariableActionDelegate extends AddWatchpointActionDelegate implements IObjectActionDelegate { + + /** The target variable/expression */ + private ICWatchpointTarget fVar; + + /** The view where fVar was selected */ + private IWorkbenchPart fActivePart; + + /** + * Constructor + */ + public AddWatchpointOnVariableActionDelegate() { + super(); + } + + /* (non-Javadoc) + * @see org.eclipse.ui.IObjectActionDelegate#setActivePart(org.eclipse.jface.action.IAction, org.eclipse.ui.IWorkbenchPart) + */ + @Override + public void setActivePart(IAction action, IWorkbenchPart targetPart) { + fActivePart = targetPart; + } + + private static class GetSizeRequest extends CRequest implements ICWatchpointTarget.GetSizeRequest { + int fSize = -1; + @Override + public int getSize() { + return fSize; + } + @Override + public void setSize(int size) { + fSize = size; + } + }; + + /* (non-Javadoc) + * @see org.eclipse.cdt.debug.internal.ui.actions.AddWatchpointActionDelegate#run(org.eclipse.jface.action.IAction) + */ + @Override + public void run(IAction action) { + if (fVar == null) { + return; + } + + final String expr = fVar.getExpression(); + if (expr == null) { + assert false : "how are we getting an empty expression?"; //$NON-NLS-1$ + return; + } + + // Getting the size of the variable/expression is an asynchronous + // operation...or at least the API is (the CDI implementation reacts + // synchronously) + final ICWatchpointTarget.GetSizeRequest request = new GetSizeRequest() { + @Override + public void done() { + if (isSuccess()) { + // Now that we have the size, put up a dialog to create the watchpoint + final int size = getSize(); + assert size > 0 : "unexpected variale/expression size"; //$NON-NLS-1$ + WorkbenchJob job = new WorkbenchJob("open watchpoint dialog") { //$NON-NLS-1$ + @Override + public IStatus runInUIThread(IProgressMonitor monitor) { + AddWatchpointDialog dlg = new AddWatchpointDialog(CDebugUIPlugin.getActiveWorkbenchShell(), + getMemorySpaceManagement()); + dlg.setExpression(expr); + dlg.initializeRange(false, Integer.toString(size)); + if (dlg.open() == Window.OK) { + addWatchpoint(dlg.getWriteAccess(), dlg.getReadAccess(), dlg.getExpression(), dlg.getMemorySpace(), dlg.getRange()); + } + return Status.OK_STATUS; + } + }; + job.setSystem(true); + job.schedule(); + } + else { + WorkbenchJob job = new WorkbenchJob("watchpoint error") { //$NON-NLS-1$ + @Override + public IStatus runInUIThread(IProgressMonitor monitor) { + if (fActivePart != null) { + ErrorDialog.openError( fActivePart.getSite().getWorkbenchWindow().getShell(), ActionMessages.getString( "AddWatchpointOnVariableActionDelegate.Error_Dlg_Title" ), ActionMessages.getString( "AddWatchpointOnVariableActionDelegate.No_Element_Size" ), getStatus() ); //$NON-NLS-1$ //$NON-NLS-2$ + } + return Status.OK_STATUS; + } + }; + job.setSystem(true); + job.schedule(); + } + } + }; + fVar.getSize(request); + } + + private class CanCreateWatchpointRequest extends CRequest implements ICWatchpointTarget.CanCreateWatchpointRequest { + boolean fCanCreate; + @Override + public boolean getCanCreate() { + return fCanCreate; + } + @Override + public void setCanCreate(boolean value) { + fCanCreate = value; + } + }; + + /** + * Record the target variable/expression + * + * @see org.eclipse.ui.actions.ActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, + * org.eclipse.jface.viewers.ISelection) + */ + @Override + public void selectionChanged(final IAction action, ISelection selection) { + fVar = null; + if (selection == null || selection.isEmpty()) { + action.setEnabled(false); + return; + } + if (selection instanceof TreeSelection) { + Object obj = ((TreeSelection)selection).getFirstElement(); + fVar = (ICWatchpointTarget)DebugPlugin.getAdapter(obj, ICWatchpointTarget.class); + if (fVar != null) { + final ICWatchpointTarget.CanCreateWatchpointRequest request = new CanCreateWatchpointRequest() { + @Override + public void done() { + action.setEnabled(getCanCreate()); + } + }; + fVar.canSetWatchpoint(request); + return; + } + assert false : "action should not have been available for object " + obj; //$NON-NLS-1$ + } + else if (selection instanceof StructuredSelection) { + // Not sure why, but sometimes we get an extraneous empty StructuredSelection. Seems harmless enough + assert ((StructuredSelection)selection).getFirstElement() == null : "action installed in unexpected type of view/part"; //$NON-NLS-1$ + } + else { + assert false : "action installed in unexpected type of view/part"; //$NON-NLS-1$ + } + action.setEnabled(false); + } +} |