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/*******************************************************************************
* Copyright (c) 2000, 2003 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.launchConfigurations;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.StringTokenizer;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.debug.internal.ui.DebugUIPlugin;
import org.eclipse.debug.ui.ILaunchShortcut;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.ui.IEditorPart;
/**
* Proxy to a launch shortcut extention
*/
public class LaunchShortcutExtension implements ILaunchShortcut {
private ImageDescriptor fImageDescriptor = null;
private List fPerspectives = null;
private ILaunchShortcut fDelegate = null;
private Set fModes = null;
/**
* The configuration element defining this tab.
*/
private IConfigurationElement fConfig;
/**
* Constructs a launch configuration tab extension based
* on the given configuration element
*
* @param element the configuration element defining the
* attribtues of this launch configuration tab extension
* @return a new launch configuration tab extension
*/
public LaunchShortcutExtension(IConfigurationElement element) {
setConfigurationElement(element);
}
/**
* Sets the configuration element that defines the attributes
* for this extension.
*
* @param element configuration element
*/
private void setConfigurationElement(IConfigurationElement element) {
fConfig = element;
}
/**
* Returns the configuration element that defines the attributes
* for this extension.
*
* @param configuration element that defines the attributes
* for this launch configuration tab extension
*/
protected IConfigurationElement getConfigurationElement() {
return fConfig;
}
/**
* Returns the label of this shortcut
*
* @return the label of this shortcut, or <code>null</code> if not
* specified
*/
public String getLabel() {
return getConfigurationElement().getAttribute("label"); //$NON-NLS-1$
}
/**
* Returns the id of this shortcut
*
* @return the id of this shortcut, or <code>null</code> if not specified
*/
public String getId() {
return getConfigurationElement().getAttribute("id"); //$NON-NLS-1$
}
/**
* Returns the path of the icon for this shortcut, or <code>null</code>
* if none.
*
* @return the path of the icon for this shortcut, or <code>null</code>
* if none
*/
protected String getIconPath() {
return getConfigurationElement().getAttribute("icon"); //$NON-NLS-1$
}
/**
* Returns the identifier of the help context associated with this launch
* shortcut, or <code>null</code> if one was not specified.
*
* @return the identifier of this launch shortcut's help context or
* <code>null</code>
* @since 2.1
*/
public String getHelpContextId() {
return getConfigurationElement().getAttribute("helpContextId"); //$NON-NLS-1$
}
/**
* Returns the category of this shortcut
*
* @return the category of this shortcut, or <code>null</code> if not
* specified
*/
public String getCategory() {
return getConfigurationElement().getAttribute("category"); //$NON-NLS-1$
}
/**
* Returns the image for this shortcut, or <code>null</code> if none
*
* @return the image for this shortcut, or <code>null</code> if none
*/
public ImageDescriptor getImageDescriptor() {
if (fImageDescriptor == null) {
URL iconURL = getConfigurationElement().getDeclaringExtension().getDeclaringPluginDescriptor().getInstallURL();
String iconPath = getIconPath();
try {
iconURL = new URL(iconURL, iconPath);
fImageDescriptor = ImageDescriptor.createFromURL(iconURL);
} catch (MalformedURLException e) {
DebugUIPlugin.log(e);
}
}
return fImageDescriptor;
}
/**
* Returns the perspectives this shortcut is registered for.
*
* @return list of Strings representing perspective identifiers
*/
public List getPerspectives() {
if (fPerspectives == null) {
IConfigurationElement[] perspectives = getConfigurationElement().getChildren("perspective"); //$NON-NLS-1$
fPerspectives = new ArrayList(perspectives.length);
for (int i = 0; i < perspectives.length; i++) {
fPerspectives.add(perspectives[i].getAttribute("id")); //$NON-NLS-1$
}
}
return fPerspectives;
}
/**
* Returns this shortcut's delegate, or <code>null</code> if none
*
* @return this shortcut's delegate, or <code>null</code> if none
*/
protected ILaunchShortcut getDelegate() {
if (fDelegate == null) {
try {
fDelegate = (ILaunchShortcut)fConfig.createExecutableExtension("class"); //$NON-NLS-1$
} catch (CoreException e) {
DebugUIPlugin.errorDialog(DebugUIPlugin.getShell(), LaunchConfigurationsMessages.getString("LaunchShortcutExtension.Error_4"), LaunchConfigurationsMessages.getString("LaunchShortcutExtension.Unable_to_use_launch_shortcut_5"), e.getStatus()); //$NON-NLS-1$ //$NON-NLS-2$
}
}
return fDelegate;
}
/**
* @see ILaunchShortcut#launch(IEditorPart, String)
*/
public void launch(IEditorPart editor, String mode) {
ILaunchShortcut shortcut = getDelegate();
if (shortcut != null) {
shortcut.launch(editor, mode);
}
}
/**
* @see ILaunchShortcut#launch(ISelection, String)
*/
public void launch(ISelection selection, String mode) {
ILaunchShortcut shortcut = getDelegate();
if (shortcut != null) {
shortcut.launch(selection, mode);
}
}
/**
* Returns the set of modes this shortcut supports.
*
* @return the set of modes this shortcut supports
*/
public Set getModes() {
if (fModes == null) {
String modes= getConfigurationElement().getAttribute("modes"); //$NON-NLS-1$
if (modes == null) {
return new HashSet(0);
}
StringTokenizer tokenizer= new StringTokenizer(modes, ","); //$NON-NLS-1$
fModes = new HashSet(tokenizer.countTokens());
while (tokenizer.hasMoreTokens()) {
fModes.add(tokenizer.nextToken().trim());
}
}
return fModes;
}
}
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