/*******************************************************************************
* Copyright (c) 2013, 2015 Ericsson AB 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:
* Alvaro Sanchez-Leon (Ericsson AB) - Support for Step into selection (bug 244865)
*******************************************************************************/
package org.eclipse.cdt.dsf.debug.ui.actions;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.RejectedExecutionException;
import org.eclipse.cdt.core.model.IFunctionDeclaration;
import org.eclipse.cdt.debug.core.model.IStepIntoSelectionHandler;
import org.eclipse.cdt.dsf.concurrent.DataRequestMonitor;
import org.eclipse.cdt.dsf.concurrent.IDsfStatusConstants;
import org.eclipse.cdt.dsf.concurrent.Query;
import org.eclipse.cdt.dsf.datamodel.DMContexts;
import org.eclipse.cdt.dsf.debug.internal.ui.sourcelookup.DsfSourceSelectionResolver;
import org.eclipse.cdt.dsf.debug.internal.ui.sourcelookup.DsfSourceSelectionResolver.LineLocation;
import org.eclipse.cdt.dsf.debug.service.IRunControl.IExecutionDMContext;
import org.eclipse.cdt.dsf.debug.service.IRunControl3;
import org.eclipse.cdt.dsf.internal.ui.DsfUIPlugin;
import org.eclipse.cdt.dsf.service.DsfServicesTracker;
import org.eclipse.cdt.dsf.service.DsfSession;
import org.eclipse.cdt.dsf.ui.viewmodel.datamodel.IDMVMContext;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.IRequest;
import org.eclipse.debug.core.commands.AbstractDebugCommand;
import org.eclipse.debug.core.commands.IDebugCommandRequest;
import org.eclipse.debug.core.commands.IEnabledStateRequest;
import org.eclipse.debug.ui.DebugUITools;
import org.eclipse.debug.ui.IDebugUIConstants;
import org.eclipse.swt.widgets.Display;
/**
* @since 2.4
*/
public class DsfStepIntoSelectionCommand extends AbstractDebugCommand implements IStepIntoSelectionHandler, IDsfStepIntoSelection {
private final DsfSession fSession;
private final DsfServicesTracker fTracker;
public DsfStepIntoSelectionCommand(DsfSession session) {
fSession = session;
fTracker = new DsfServicesTracker(DsfUIPlugin.getBundleContext(), session.getId());
}
public void dispose() {
fTracker.dispose();
}
@Override
protected void doExecute(Object[] targets, IProgressMonitor monitor, IRequest request) throws CoreException {
// No multiple selections allowed for Step into selection
if (targets.length != 1) {
return;
}
final IExecutionDMContext dmc = DMContexts.getAncestorOfType(((IDMVMContext) targets[0]).getDMContext(), IExecutionDMContext.class);
if (dmc == null) {
return;
}
DsfSourceSelectionResolver resolveSelection = new DsfSourceSelectionResolver();
// Resolve UI selection from the the UI thread
Display.getDefault().syncExec(resolveSelection);
if (resolveSelection.isSuccessful()) {
LineLocation location = resolveSelection.getLineLocation();
runToSelection(location.getFileName(), location.getLineNumber(), resolveSelection.getFunction(), dmc);
} else {
DsfUIPlugin.debug("DSfStepIntoSelectionCommand: Unable to resolve a selected function"); //$NON-NLS-1$
}
}
@Override
protected boolean isExecutable(Object[] targets, IProgressMonitor monitor, IEnabledStateRequest request) throws CoreException {
// No multiple selections allowed for Step into selection
if (targets.length != 1) {
return false;
}
final IExecutionDMContext dmc = DMContexts.getAncestorOfType(((IDMVMContext) targets[0]).getDMContext(), IExecutionDMContext.class);
return isExecutable(dmc);
}
@Override
protected Object getTarget(Object element) {
if (element instanceof IDMVMContext) {
return element;
}
return null;
}
@Override
protected boolean isRemainEnabled(IDebugCommandRequest request) {
return true;
}
@Override
public boolean isExecutable(final IExecutionDMContext dmc) {
if (dmc == null) {
return false;
}
if (fSession != null && fSession.isActive()) {
try {
Query<Boolean> query = new Query<Boolean>() {
@Override
protected void execute(DataRequestMonitor<Boolean> rm) {
IRunControl3 runControl = fTracker.getService(IRunControl3.class);
if (runControl == null) {
rm.done(false);
return;
}
// The selection may not be up to date, this is indicated with
// the selectedFunction being set to null
runControl.canStepIntoSelection(dmc, null, 0, null, rm);
}
};
fSession.getExecutor().execute(query);
return query.get();
} catch (InterruptedException e) {
} catch (ExecutionException e) {
}
}
return false;
}
@Override
public void runToSelection(final String fileName, final int lineLocation, final IFunctionDeclaration selectedFunction, final IExecutionDMContext dmc) {
if (fSession != null && fSession.isActive()) {
Throwable exception = null;
try {
Query<Object> query = new Query<Object>() {
@Override
protected void execute(final DataRequestMonitor<Object> rm) {
IRunControl3 runControl = fTracker.getService(IRunControl3.class);
if (runControl == null) {
rm.done(new Status(IStatus.ERROR, DsfUIPlugin.PLUGIN_ID, IDsfStatusConstants.NOT_SUPPORTED, "IRunControl3 service not available", null)); //$NON-NLS-1$
return;
}
boolean skipBreakpoints = DebugUITools.getPreferenceStore().getBoolean(IDebugUIConstants.PREF_SKIP_BREAKPOINTS_DURING_RUN_TO_LINE);
runControl.stepIntoSelection(dmc, fileName, lineLocation, skipBreakpoints, selectedFunction, rm);
}
};
fSession.getExecutor().execute(query);
query.get();
} catch (RejectedExecutionException e) {
exception = e;
} catch (InterruptedException e) {
exception = e;
} catch (ExecutionException e) {
exception = e;
}
if (exception != null) {
DsfUIPlugin.log(new DebugException(new Status(IStatus.ERROR, DsfUIPlugin.PLUGIN_ID, DebugException.REQUEST_FAILED, "Failed executing Step into Selection", exception)));//$NON-NLS-1$
}
} else {
DsfUIPlugin.log(new DebugException(new Status(IStatus.ERROR, DsfUIPlugin.PLUGIN_ID, DebugException.REQUEST_FAILED, "Debug session is not active", null))); //$NON-NLS-1$
}
}
}