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/*******************************************************************************
* Copyright (c) 2000, 2004 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.debug.internal.ui.actions;
import java.util.Iterator;
import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.model.IDebugElement;
import org.eclipse.debug.core.model.ISuspendResume;
import org.eclipse.debug.core.model.IThread;
import org.eclipse.jface.viewers.IStructuredSelection;
public class ResumeActionDelegate extends AbstractListenerActionDelegate {
/**
* @see AbstractDebugActionDelegate#doAction(Object)
*/
protected void doAction(Object object) throws DebugException {
if (isEnabledFor(object)) {
ISuspendResume resume = (ISuspendResume)object;
resume.resume();
} else {
doActionForAllThreads(object);
}
}
/**
* Resumes all threads in the target associated with the given element
*
* @param object debug element
* @throws DebugException on failure
*/
protected void doActionForAllThreads(Object object) throws DebugException {
if (isEnabledForAllThreads(object)) {
IDebugElement debugElement = (IDebugElement) object;
IThread[] threads = debugElement.getDebugTarget().getThreads();
for (int i = 0; i < threads.length; i++) {
IThread thread = threads[i];
if (thread.canResume()) {
thread.resume();
}
}
}
}
/**
* @see AbstractDebugActionDelegate#isRunInBackground()
*/
protected boolean isRunInBackground() {
return true;
}
/**
* @see AbstractDebugActionDelegate#isEnabledFor(Object)
*/
protected boolean isEnabledFor(Object element) {
return element instanceof ISuspendResume && ((ISuspendResume) element).canResume();
}
/**
* @see AbstractDebugActionDelegate#getEnableStateForSelection(IStructuredSelection)
*/
protected boolean getEnableStateForSelection(IStructuredSelection selection) {
if (selection.isEmpty()) {
return false;
}
for (Iterator i = selection.iterator(); i.hasNext(); ) {
Object element = i.next();
if (!(isEnabledFor(element) || isEnabledForAllThreads(element))) {
return false;
}
}
return true;
}
/**
* Returns whether 'resume all threads' should be enabled for the given element.
*/
protected boolean isEnabledForAllThreads(Object element) {
if (element instanceof IDebugElement) {
IDebugElement debugElement = (IDebugElement) element;
try {
IThread[] threads = debugElement.getDebugTarget().getThreads();
for (int i = 0; i < threads.length; i++) {
if (threads[i].canResume()) {
return true;
}
}
} catch (DebugException e) {
}
}
return false;
}
/**
* @see AbstractDebugActionDelegate#getStatusMessage()
*/
protected String getStatusMessage() {
return ActionMessages.getString("ResumeActionDelegate.Exceptions_occurred_attempting_to_resume._2"); //$NON-NLS-1$
}
/**
* @see AbstractDebugActionDelegate#getErrorDialogMessage()
*/
protected String getErrorDialogMessage() {
return ActionMessages.getString("ResumeActionDelegate.Resume_failed._1"); //$NON-NLS-1$
}
/**
* @see AbstractDebugActionDelegate#getErrorDialogTitle()
*/
protected String getErrorDialogTitle() {
return ActionMessages.getString("ResumeActionDelegate.Resume_3"); //$NON-NLS-1$
}
}
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