bundles/org.eclipse.team.ui/src/org/eclipse/team/internal/ui/TeamUIPlugin.java - gerrit/platform/eclipse.platform.team - Git at Google

 /*******************************************************************************
  * 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.team.internal.ui;


 import java.net.MalformedURLException;
 import java.net.URL;
 import java.util.ArrayList;
 import java.util.Hashtable;
 import java.util.Iterator;
 import java.util.List;

 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IConfigurationElement;
 import org.eclipse.core.runtime.IExtension;
 import org.eclipse.core.runtime.IPluginDescriptor;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.jface.preference.IPreferenceStore;
 import org.eclipse.jface.resource.ImageDescriptor;
 import org.eclipse.jface.util.IPropertyChangeListener;
 import org.eclipse.jface.util.PropertyChangeEvent;
 import org.eclipse.swt.custom.BusyIndicator;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.team.internal.ui.jobs.RefreshSubscriberInputJob;
 import org.eclipse.team.internal.ui.jobs.RefreshSubscriberJob;
 import org.eclipse.team.internal.ui.sync.actions.SyncViewerDirectionFilters;
 import org.eclipse.team.internal.ui.sync.views.SyncViewerTableSorter;
 import org.eclipse.team.ui.ISharedImages;
 import org.eclipse.ui.IWorkbenchPage;
 import org.eclipse.ui.IWorkbenchWindow;
 import org.eclipse.ui.plugin.AbstractUIPlugin;

 /**
  * TeamUIPlugin is the plugin for generic, non-provider specific,
  * team UI functionality in the workbench.
  */
 public class TeamUIPlugin extends AbstractUIPlugin implements IPropertyChangeListener {

 	private static TeamUIPlugin instance;

 	public static final String ID = "org.eclipse.team.ui"; //$NON-NLS-1$
 	public static final String PT_SUBSCRIBER_MENUS = "subscriberMenus"; //$NON-NLS-1$

 	//	plugin id
 	public static final String PLUGIN_ID = "org.eclipse.team.ui"; //$NON-NLS-1$

 	 // extension points
 	 public static final String PT_CONFIGURATION ="configurationWizards"; //$NON-NLS-1$
 	 public static final String PT_TARGETCONFIG ="targetConfigWizards"; //$NON-NLS-1$
 	 public static final String PT_DECORATORS = "decorators"; //$NON-NLS-1$

 	private static List propertyChangeListeners = new ArrayList(5);

 	private static Hashtable imageDescriptors = new Hashtable(20);
 	private static List disposeOnShutdownImages= new ArrayList();

 	private RefreshSubscriberInputJob refreshJob;

 	/**
 	 * Returns the job that refreshes the active subscribers in the background.
 	 */
 	public RefreshSubscriberInputJob getRefreshJob() {
 		return refreshJob;
 	}

 	/**
 	 * Creates a new TeamUIPlugin.
 	 *
 	 * @param descriptor  the plugin descriptor
 	 */
 	public TeamUIPlugin(IPluginDescriptor descriptor) {
 		super(descriptor);
 		instance = this;
 		initializeImages();
 		initializePreferences();
 	}
 	/**
 	 * Creates an extension.  If the extension plugin has not
 	 * been loaded a busy cursor will be activated during the duration of
 	 * the load.
 	 *
 	 * @param element the config element defining the extension
 	 * @param classAttribute the name of the attribute carrying the class
 	 * @return the extension object
 	 */
 	public static Object createExtension(final IConfigurationElement element, final String classAttribute) throws CoreException {
 		// If plugin has been loaded create extension.
 		// Otherwise, show busy cursor then create extension.
 		IPluginDescriptor plugin = element.getDeclaringExtension().getDeclaringPluginDescriptor();
 		if (plugin.isPluginActivated()) {
 			return element.createExecutableExtension(classAttribute);
 		} else {
 			final Object [] ret = new Object[1];
 			final CoreException [] exc = new CoreException[1];
 			BusyIndicator.showWhile(null, new Runnable() {
 				public void run() {
 					try {
 						ret[0] = element.createExecutableExtension(classAttribute);
 					} catch (CoreException e) {
 						exc[0] = e;
 					}
 				}
 			});
 			if (exc[0] != null)
 				throw exc[0];
 			else
 				return ret[0];
 		}
 	}

 	/**
 	 * Convenience method to get the currently active workbench page. Note that
 	 * the active page may not be the one that the usr perceives as active in
 	 * some situations so this method of obtaining the activae page should only
 	 * be used if no other method is available.
 	 *
 	 * @return the active workbench page
 	 */
 	public static IWorkbenchPage getActivePage() {
 		IWorkbenchWindow window = getPlugin().getWorkbench().getActiveWorkbenchWindow();
 		if (window == null) return null;
 		return window.getActivePage();
 	}

 	/**
 	 * Return the default instance of the receiver. This represents the runtime plugin.
 	 *
 	 * @return the singleton plugin instance
 	 */
 	public static TeamUIPlugin getPlugin() {
 		return instance;
 	}
 	/**
 	 * Initializes the preferences for this plugin if necessary.
 	 */
 	protected void initializePreferences() {
 		IPreferenceStore store = getPreferenceStore();
 		store.setDefault(IPreferenceIds.SYNCVIEW_BACKGROUND_SYNC, true);
 		store.setDefault(IPreferenceIds.SYNCVIEW_SCHEDULED_SYNC, false);
 		store.setDefault(IPreferenceIds.SYNCVIEW_DELAY, 60 /* minutes */);
 		store.setDefault(IPreferenceIds.SYNCVIEW_COMPRESS_FOLDERS, true);
 		store.setDefault(IPreferenceIds.SYNCVIEW_VIEW_TABLESORT, SyncViewerTableSorter.COL_NAME);
 		store.setDefault(IPreferenceIds.SYNCVIEW_VIEW_TABLESORT_REVERSED, false);
 		store.setDefault(IPreferenceIds.SYNCVIEW_SELECTED_MODE, SyncViewerDirectionFilters.BOTH_MODE);
 		store.setDefault(IPreferenceIds.SYNCVIEW_DEFAULT_PERSPECTIVE, "org.eclipse.team.internal.ui.sync.views.TeamSynchronizingPerspective"); //$NON-NLS-1$
 	}

 	/**
 	 * Convenience method for logging statuses to the plugin log
 	 *
 	 * @param status  the status to log
 	 */
 	public static void log(IStatus status) {
 		getPlugin().getLog().log(status);
 	}

 	/**
 	 * Convenience method for logging a TeamException in such a way that the
 	 * stacktrace is logged as well.
 	 * @param e
 	 */
 	public static void log(CoreException e) {
 		IStatus status = e.getStatus();
 		log (status.getSeverity(), status.getMessage(), e);
 	}

 	/**
 	 * Log the given exception along with the provided message and severity indicator
 	 */
 	public static void log(int severity, String message, Throwable e) {
 		log(new Status(severity, ID, 0, message, e));
 	}

 	/**
 	 * @see Plugin#startup()
 	 */
 	public void startup() throws CoreException {
 		Policy.localize("org.eclipse.team.internal.ui.messages"); //$NON-NLS-1$
 		initializePreferences();

 		getPreferenceStore().addPropertyChangeListener(this);

 		// startup auto-refresh job if necessary
 		refreshJob = new RefreshSubscriberInputJob(Policy.bind("ScheduledSyncViewRefresh.taskName")); //$NON-NLS-1$
 		refreshJob.setRefreshInterval(getPreferenceStore().getInt(IPreferenceIds.SYNCVIEW_DELAY) * 60);
 		if(getPreferenceStore().getBoolean(IPreferenceIds.SYNCVIEW_SCHEDULED_SYNC)) {
 			refreshJob.setRestartOnCancel(true);
 			refreshJob.setReschedule(true);
 			// start once the platform has started and stabilized
 			refreshJob.schedule(20000 /* 20 seconds */);
 		}
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.core.runtime.Plugin#shutdown()
 	 */
 	public void shutdown() throws CoreException {
 		disposeImages();
 	}

 	/**
 	 * Register for changes made to Team properties.
 	 */
 	public static void addPropertyChangeListener(IPropertyChangeListener listener) {
 		propertyChangeListeners.add(listener);
 	}

 	/**
 	 * Deregister as a Team property changes.
 	 */
 	public static void removePropertyChangeListener(IPropertyChangeListener listener) {
 		propertyChangeListeners.remove(listener);
 	}

 	/**
 	 * Broadcast a Team property change.
 	 */
 	public static void broadcastPropertyChange(PropertyChangeEvent event) {
 		for (Iterator it = propertyChangeListeners.iterator(); it.hasNext();) {
 			IPropertyChangeListener listener = (IPropertyChangeListener)it.next();
 			listener.propertyChange(event);
 		}
 	}

 	/**
 	 * Registers the given image for being disposed when this plug-in is shutdown.
 	 *
 	 * @param image the image to register for disposal
 	 */
 	public static void disposeOnShutdown(Image image) {
 		if (image != null)
 			disposeOnShutdownImages.add(image);
 	}

 	/**
 	 * Creates an image and places it in the image registry.
 	 *
 	 * @param id  the identifier for the image
 	 * @param baseURL  the base URL for the image
 	 */
 	protected static void createImageDescriptor(String id, URL baseURL) {
 		URL url = null;
 		try {
 			url = new URL(baseURL, ISharedImages.ICON_PATH + id);
 		} catch (MalformedURLException e) {
 		}
 		ImageDescriptor desc = ImageDescriptor.createFromURL(url);
 		imageDescriptors.put(id, desc);
 	}
 	/**
 	 * Returns the image descriptor for the given image ID.
 	 * Returns null if there is no such image.
 	 *
 	 * @param id  the identifier for the image to retrieve
 	 * @return the image associated with the given ID
 	 */
 	public static ImageDescriptor getImageDescriptor(String id) {
 		if(! imageDescriptors.containsKey(id)) {
 			URL baseURL = TeamUIPlugin.getPlugin().getDescriptor().getInstallURL();
 			createImageDescriptor(id, baseURL);
 		}
 		return (ImageDescriptor)imageDescriptors.get(id);
 	}
 	/**
 	 * Convenience method to get an image descriptor for an extension
 	 *
 	 * @param extension  the extension declaring the image
 	 * @param subdirectoryAndFilename  the path to the image
 	 * @return the image
 	 */
 	public static ImageDescriptor getImageDescriptorFromExtension(IExtension extension, String subdirectoryAndFilename) {
 		IPluginDescriptor pluginDescriptor = extension.getDeclaringPluginDescriptor();
 		URL path = pluginDescriptor.getInstallURL();
 		URL fullPathString = null;
 		try {
 			fullPathString = new URL(path,subdirectoryAndFilename);
 			return ImageDescriptor.createFromURL(fullPathString);
 		} catch (MalformedURLException e) {
 		}
 		return null;
 	}
 	/**
 	 * Initializes the table of images used in this plugin.
 	 */
 	private void initializeImages() {
 		URL baseURL = TeamUIPlugin.getPlugin().getDescriptor().getInstallURL();

 		// View decoration overlays
 		createImageDescriptor(ISharedImages.IMG_DIRTY_OVR, baseURL);
 		createImageDescriptor(ISharedImages.IMG_CHECKEDIN_OVR, baseURL);
 		createImageDescriptor(ISharedImages.IMG_CHECKEDOUT_OVR, baseURL);
 		createImageDescriptor(ISharedImages.IMG_SYNC_VIEW, baseURL);

 		// Collapse all
 		createImageDescriptor(ISharedImages.IMG_COLLAPSE_ALL, baseURL);
 		createImageDescriptor(ISharedImages.IMG_COLLAPSE_ALL_ENABLED, baseURL);

 		// Target Management Icons
 		createImageDescriptor(ISharedImages.IMG_SITE_ELEMENT, baseURL);

 		// Sync View Icons
 		createImageDescriptor(ISharedImages.IMG_DLG_SYNC_INCOMING, baseURL);
 		createImageDescriptor(ISharedImages.IMG_DLG_SYNC_OUTGOING, baseURL);
 		createImageDescriptor(ISharedImages.IMG_DLG_SYNC_CONFLICTING, baseURL);
 		createImageDescriptor(ISharedImages.IMG_REFRESH, baseURL);
 		createImageDescriptor(ISharedImages.IMG_CHANGE_FILTER, baseURL);
 		createImageDescriptor(ISharedImages.IMG_IGNORE_WHITESPACE, baseURL);
 		createImageDescriptor(ISharedImages.IMG_CONTENTS, baseURL);

 		createImageDescriptor(ISharedImages.IMG_DLG_SYNC_INCOMING_DISABLED, baseURL);
 		createImageDescriptor(ISharedImages.IMG_DLG_SYNC_OUTGOING_DISABLED, baseURL);
 		createImageDescriptor(ISharedImages.IMG_DLG_SYNC_CONFLICTING_DISABLED, baseURL);
 		createImageDescriptor(ISharedImages.IMG_REFRESH_DISABLED, baseURL);
 		createImageDescriptor(ISharedImages.IMG_IGNORE_WHITESPACE_DISABLED, baseURL);
 		createImageDescriptor(ISharedImages.IMG_CONTENTS_DISABLED, baseURL);

 		createImageDescriptor(ISharedImages.IMG_DLG_SYNC_INCOMING_ENABLED, baseURL);
 		createImageDescriptor(ISharedImages.IMG_DLG_SYNC_OUTGOING_ENABLED, baseURL);
 		createImageDescriptor(ISharedImages.IMG_DLG_SYNC_CONFLICTING_ENABLED, baseURL);
 		createImageDescriptor(ISharedImages.IMG_REFRESH_ENABLED, baseURL);
 		createImageDescriptor(ISharedImages.IMG_IGNORE_WHITESPACE_ENABLED, baseURL);
 		createImageDescriptor(ISharedImages.IMG_CONTENTS_ENABLED, baseURL);

 		createImageDescriptor(ISharedImages.IMG_SYNC_MODE_CATCHUP, baseURL);
 		createImageDescriptor(ISharedImages.IMG_SYNC_MODE_RELEASE, baseURL);
 		createImageDescriptor(ISharedImages.IMG_SYNC_MODE_FREE, baseURL);

 		createImageDescriptor(ISharedImages.IMG_SYNC_MODE_CATCHUP_DISABLED, baseURL);
 		createImageDescriptor(ISharedImages.IMG_SYNC_MODE_RELEASE_DISABLED, baseURL);
 		createImageDescriptor(ISharedImages.IMG_SYNC_MODE_FREE_DISABLED, baseURL);

 		createImageDescriptor(ISharedImages.IMG_SYNC_MODE_CATCHUP_ENABLED, baseURL);
 		createImageDescriptor(ISharedImages.IMG_SYNC_MODE_RELEASE_ENABLED, baseURL);
 		createImageDescriptor(ISharedImages.IMG_SYNC_MODE_FREE_ENABLED, baseURL);

 		createImageDescriptor(ISharedImages.IMG_WIZBAN_SHARE, baseURL);

 		// Wizard banners
 		createImageDescriptor(ISharedImages.IMG_PROJECTSET_IMPORT_BANNER, baseURL);
 		createImageDescriptor(ISharedImages.IMG_PROJECTSET_EXPORT_BANNER, baseURL);

 		// Live Sync View icons
 		createImageDescriptor(ISharedImages.IMG_COMPRESSED_FOLDER, baseURL);
 	}

 	/**
 	 * Dispose of images
 	 */
 	public static void disposeImages() {
 		if (disposeOnShutdownImages != null) {
 			Iterator i= disposeOnShutdownImages.iterator();
 			while (i.hasNext()) {
 				Image img= (Image) i.next();
 				if (!img.isDisposed())
 					img.dispose();
 			}
 			imageDescriptors= null;
 		}
 	}

 	public void propertyChange(PropertyChangeEvent event) {
 		// update the background sync delay
 		if(event.getProperty().equals(IPreferenceIds.SYNCVIEW_DELAY)) {
 			RefreshSubscriberJob refreshJob = getRefreshJob();
 			refreshJob.setRefreshInterval(getPreferenceStore().getInt(IPreferenceIds.SYNCVIEW_DELAY) * 60);
 		}

 		// enable / disable the background sync job
 		if(event.getProperty().equals(IPreferenceIds.SYNCVIEW_SCHEDULED_SYNC)) {
 			RefreshSubscriberJob refreshJob = getRefreshJob();
 			refreshJob.setRefreshInterval(getPreferenceStore().getInt(IPreferenceIds.SYNCVIEW_DELAY) * 60);
 			boolean value = getPreferenceStore().getBoolean(IPreferenceIds.SYNCVIEW_SCHEDULED_SYNC);
 			if(value) {
 				refreshJob.setRestartOnCancel(true);
 				refreshJob.setReschedule(true);
 				refreshJob.schedule();
 			} else {
 				refreshJob.setRestartOnCancel(false /* don't restart the job */);
 				refreshJob.setReschedule(false);
 				refreshJob.cancel();
 			}
 		}
 	}
 }
	/*******************************************************************************
	* 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.team.internal.ui;


	import java.net.MalformedURLException;
	import java.net.URL;
	import java.util.ArrayList;
	import java.util.Hashtable;
	import java.util.Iterator;
	import java.util.List;

	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IConfigurationElement;
	import org.eclipse.core.runtime.IExtension;
	import org.eclipse.core.runtime.IPluginDescriptor;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.jface.preference.IPreferenceStore;
	import org.eclipse.jface.resource.ImageDescriptor;
	import org.eclipse.jface.util.IPropertyChangeListener;
	import org.eclipse.jface.util.PropertyChangeEvent;
	import org.eclipse.swt.custom.BusyIndicator;
	import org.eclipse.swt.graphics.Image;
	import org.eclipse.team.internal.ui.jobs.RefreshSubscriberInputJob;
	import org.eclipse.team.internal.ui.jobs.RefreshSubscriberJob;
	import org.eclipse.team.internal.ui.sync.actions.SyncViewerDirectionFilters;
	import org.eclipse.team.internal.ui.sync.views.SyncViewerTableSorter;
	import org.eclipse.team.ui.ISharedImages;
	import org.eclipse.ui.IWorkbenchPage;
	import org.eclipse.ui.IWorkbenchWindow;
	import org.eclipse.ui.plugin.AbstractUIPlugin;

	/**
	* TeamUIPlugin is the plugin for generic, non-provider specific,
	* team UI functionality in the workbench.
	*/
	public class TeamUIPlugin extends AbstractUIPlugin implements IPropertyChangeListener {

	private static TeamUIPlugin instance;

	public static final String ID = "org.eclipse.team.ui"; //$NON-NLS-1$
	public static final String PT_SUBSCRIBER_MENUS = "subscriberMenus"; //$NON-NLS-1$

	// plugin id
	public static final String PLUGIN_ID = "org.eclipse.team.ui"; //$NON-NLS-1$

	// extension points
	public static final String PT_CONFIGURATION ="configurationWizards"; //$NON-NLS-1$
	public static final String PT_TARGETCONFIG ="targetConfigWizards"; //$NON-NLS-1$
	public static final String PT_DECORATORS = "decorators"; //$NON-NLS-1$

	private static List propertyChangeListeners = new ArrayList(5);

	private static Hashtable imageDescriptors = new Hashtable(20);
	private static List disposeOnShutdownImages= new ArrayList();

	private RefreshSubscriberInputJob refreshJob;

	/**
	* Returns the job that refreshes the active subscribers in the background.
	*/
	public RefreshSubscriberInputJob getRefreshJob() {
	return refreshJob;
	}

	/**
	* Creates a new TeamUIPlugin.
	*
	* @param descriptor the plugin descriptor
	*/
	public TeamUIPlugin(IPluginDescriptor descriptor) {
	super(descriptor);
	instance = this;
	initializeImages();
	initializePreferences();
	}
	/**
	* Creates an extension. If the extension plugin has not
	* been loaded a busy cursor will be activated during the duration of
	* the load.
	*
	* @param element the config element defining the extension
	* @param classAttribute the name of the attribute carrying the class
	* @return the extension object
	*/
	public static Object createExtension(final IConfigurationElement element, final String classAttribute) throws CoreException {
	// If plugin has been loaded create extension.
	// Otherwise, show busy cursor then create extension.
	IPluginDescriptor plugin = element.getDeclaringExtension().getDeclaringPluginDescriptor();
	if (plugin.isPluginActivated()) {
	return element.createExecutableExtension(classAttribute);
	} else {
	final Object [] ret = new Object[1];
	final CoreException [] exc = new CoreException[1];
	BusyIndicator.showWhile(null, new Runnable() {
	public void run() {
	try {
	ret[0] = element.createExecutableExtension(classAttribute);
	} catch (CoreException e) {
	exc[0] = e;
	}
	}
	});
	if (exc[0] != null)
	throw exc[0];
	else
	return ret[0];
	}
	}

	/**
	* Convenience method to get the currently active workbench page. Note that
	* the active page may not be the one that the usr perceives as active in
	* some situations so this method of obtaining the activae page should only
	* be used if no other method is available.
	*
	* @return the active workbench page
	*/
	public static IWorkbenchPage getActivePage() {
	IWorkbenchWindow window = getPlugin().getWorkbench().getActiveWorkbenchWindow();
	if (window == null) return null;
	return window.getActivePage();
	}

	/**
	* Return the default instance of the receiver. This represents the runtime plugin.
	*
	* @return the singleton plugin instance
	*/
	public static TeamUIPlugin getPlugin() {
	return instance;
	}
	/**
	* Initializes the preferences for this plugin if necessary.
	*/
	protected void initializePreferences() {
	IPreferenceStore store = getPreferenceStore();
	store.setDefault(IPreferenceIds.SYNCVIEW_BACKGROUND_SYNC, true);
	store.setDefault(IPreferenceIds.SYNCVIEW_SCHEDULED_SYNC, false);
	store.setDefault(IPreferenceIds.SYNCVIEW_DELAY, 60 /* minutes */);
	store.setDefault(IPreferenceIds.SYNCVIEW_COMPRESS_FOLDERS, true);
	store.setDefault(IPreferenceIds.SYNCVIEW_VIEW_TABLESORT, SyncViewerTableSorter.COL_NAME);
	store.setDefault(IPreferenceIds.SYNCVIEW_VIEW_TABLESORT_REVERSED, false);
	store.setDefault(IPreferenceIds.SYNCVIEW_SELECTED_MODE, SyncViewerDirectionFilters.BOTH_MODE);
	store.setDefault(IPreferenceIds.SYNCVIEW_DEFAULT_PERSPECTIVE, "org.eclipse.team.internal.ui.sync.views.TeamSynchronizingPerspective"); //$NON-NLS-1$
	}

	/**
	* Convenience method for logging statuses to the plugin log
	*
	* @param status the status to log
	*/
	public static void log(IStatus status) {
	getPlugin().getLog().log(status);
	}

	/**
	* Convenience method for logging a TeamException in such a way that the
	* stacktrace is logged as well.
	* @param e
	*/
	public static void log(CoreException e) {
	IStatus status = e.getStatus();
	log (status.getSeverity(), status.getMessage(), e);
	}

	/**
	* Log the given exception along with the provided message and severity indicator
	*/
	public static void log(int severity, String message, Throwable e) {
	log(new Status(severity, ID, 0, message, e));
	}

	/**
	* @see Plugin#startup()
	*/
	public void startup() throws CoreException {
	Policy.localize("org.eclipse.team.internal.ui.messages"); //$NON-NLS-1$
	initializePreferences();

	getPreferenceStore().addPropertyChangeListener(this);

	// startup auto-refresh job if necessary
	refreshJob = new RefreshSubscriberInputJob(Policy.bind("ScheduledSyncViewRefresh.taskName")); //$NON-NLS-1$
	refreshJob.setRefreshInterval(getPreferenceStore().getInt(IPreferenceIds.SYNCVIEW_DELAY) * 60);
	if(getPreferenceStore().getBoolean(IPreferenceIds.SYNCVIEW_SCHEDULED_SYNC)) {
	refreshJob.setRestartOnCancel(true);
	refreshJob.setReschedule(true);
	// start once the platform has started and stabilized
	refreshJob.schedule(20000 /* 20 seconds */);
	}
	}

	/* (non-Javadoc)
	* @see org.eclipse.core.runtime.Plugin#shutdown()
	*/
	public void shutdown() throws CoreException {
	disposeImages();
	}

	/**
	* Register for changes made to Team properties.
	*/
	public static void addPropertyChangeListener(IPropertyChangeListener listener) {
	propertyChangeListeners.add(listener);
	}

	/**
	* Deregister as a Team property changes.
	*/
	public static void removePropertyChangeListener(IPropertyChangeListener listener) {
	propertyChangeListeners.remove(listener);
	}

	/**
	* Broadcast a Team property change.
	*/
	public static void broadcastPropertyChange(PropertyChangeEvent event) {
	for (Iterator it = propertyChangeListeners.iterator(); it.hasNext();) {
	IPropertyChangeListener listener = (IPropertyChangeListener)it.next();
	listener.propertyChange(event);
	}
	}

	/**
	* Registers the given image for being disposed when this plug-in is shutdown.
	*
	* @param image the image to register for disposal
	*/
	public static void disposeOnShutdown(Image image) {
	if (image != null)
	disposeOnShutdownImages.add(image);
	}

	/**
	* Creates an image and places it in the image registry.
	*
	* @param id the identifier for the image
	* @param baseURL the base URL for the image
	*/
	protected static void createImageDescriptor(String id, URL baseURL) {
	URL url = null;
	try {
	url = new URL(baseURL, ISharedImages.ICON_PATH + id);
	} catch (MalformedURLException e) {
	}
	ImageDescriptor desc = ImageDescriptor.createFromURL(url);
	imageDescriptors.put(id, desc);
	}
	/**
	* Returns the image descriptor for the given image ID.
	* Returns null if there is no such image.
	*
	* @param id the identifier for the image to retrieve
	* @return the image associated with the given ID
	*/
	public static ImageDescriptor getImageDescriptor(String id) {
	if(! imageDescriptors.containsKey(id)) {
	URL baseURL = TeamUIPlugin.getPlugin().getDescriptor().getInstallURL();
	createImageDescriptor(id, baseURL);
	}
	return (ImageDescriptor)imageDescriptors.get(id);
	}
	/**
	* Convenience method to get an image descriptor for an extension
	*
	* @param extension the extension declaring the image
	* @param subdirectoryAndFilename the path to the image
	* @return the image
	*/
	public static ImageDescriptor getImageDescriptorFromExtension(IExtension extension, String subdirectoryAndFilename) {
	IPluginDescriptor pluginDescriptor = extension.getDeclaringPluginDescriptor();
	URL path = pluginDescriptor.getInstallURL();
	URL fullPathString = null;
	try {
	fullPathString = new URL(path,subdirectoryAndFilename);
	return ImageDescriptor.createFromURL(fullPathString);
	} catch (MalformedURLException e) {
	}
	return null;
	}
	/**
	* Initializes the table of images used in this plugin.
	*/
	private void initializeImages() {
	URL baseURL = TeamUIPlugin.getPlugin().getDescriptor().getInstallURL();

	// View decoration overlays
	createImageDescriptor(ISharedImages.IMG_DIRTY_OVR, baseURL);
	createImageDescriptor(ISharedImages.IMG_CHECKEDIN_OVR, baseURL);
	createImageDescriptor(ISharedImages.IMG_CHECKEDOUT_OVR, baseURL);
	createImageDescriptor(ISharedImages.IMG_SYNC_VIEW, baseURL);

	// Collapse all
	createImageDescriptor(ISharedImages.IMG_COLLAPSE_ALL, baseURL);
	createImageDescriptor(ISharedImages.IMG_COLLAPSE_ALL_ENABLED, baseURL);

	// Target Management Icons
	createImageDescriptor(ISharedImages.IMG_SITE_ELEMENT, baseURL);

	// Sync View Icons
	createImageDescriptor(ISharedImages.IMG_DLG_SYNC_INCOMING, baseURL);
	createImageDescriptor(ISharedImages.IMG_DLG_SYNC_OUTGOING, baseURL);
	createImageDescriptor(ISharedImages.IMG_DLG_SYNC_CONFLICTING, baseURL);
	createImageDescriptor(ISharedImages.IMG_REFRESH, baseURL);
	createImageDescriptor(ISharedImages.IMG_CHANGE_FILTER, baseURL);
	createImageDescriptor(ISharedImages.IMG_IGNORE_WHITESPACE, baseURL);
	createImageDescriptor(ISharedImages.IMG_CONTENTS, baseURL);

	createImageDescriptor(ISharedImages.IMG_DLG_SYNC_INCOMING_DISABLED, baseURL);
	createImageDescriptor(ISharedImages.IMG_DLG_SYNC_OUTGOING_DISABLED, baseURL);
	createImageDescriptor(ISharedImages.IMG_DLG_SYNC_CONFLICTING_DISABLED, baseURL);
	createImageDescriptor(ISharedImages.IMG_REFRESH_DISABLED, baseURL);
	createImageDescriptor(ISharedImages.IMG_IGNORE_WHITESPACE_DISABLED, baseURL);
	createImageDescriptor(ISharedImages.IMG_CONTENTS_DISABLED, baseURL);

	createImageDescriptor(ISharedImages.IMG_DLG_SYNC_INCOMING_ENABLED, baseURL);
	createImageDescriptor(ISharedImages.IMG_DLG_SYNC_OUTGOING_ENABLED, baseURL);
	createImageDescriptor(ISharedImages.IMG_DLG_SYNC_CONFLICTING_ENABLED, baseURL);
	createImageDescriptor(ISharedImages.IMG_REFRESH_ENABLED, baseURL);
	createImageDescriptor(ISharedImages.IMG_IGNORE_WHITESPACE_ENABLED, baseURL);
	createImageDescriptor(ISharedImages.IMG_CONTENTS_ENABLED, baseURL);

	createImageDescriptor(ISharedImages.IMG_SYNC_MODE_CATCHUP, baseURL);
	createImageDescriptor(ISharedImages.IMG_SYNC_MODE_RELEASE, baseURL);
	createImageDescriptor(ISharedImages.IMG_SYNC_MODE_FREE, baseURL);

	createImageDescriptor(ISharedImages.IMG_SYNC_MODE_CATCHUP_DISABLED, baseURL);
	createImageDescriptor(ISharedImages.IMG_SYNC_MODE_RELEASE_DISABLED, baseURL);
	createImageDescriptor(ISharedImages.IMG_SYNC_MODE_FREE_DISABLED, baseURL);

	createImageDescriptor(ISharedImages.IMG_SYNC_MODE_CATCHUP_ENABLED, baseURL);
	createImageDescriptor(ISharedImages.IMG_SYNC_MODE_RELEASE_ENABLED, baseURL);
	createImageDescriptor(ISharedImages.IMG_SYNC_MODE_FREE_ENABLED, baseURL);

	createImageDescriptor(ISharedImages.IMG_WIZBAN_SHARE, baseURL);

	// Wizard banners
	createImageDescriptor(ISharedImages.IMG_PROJECTSET_IMPORT_BANNER, baseURL);
	createImageDescriptor(ISharedImages.IMG_PROJECTSET_EXPORT_BANNER, baseURL);

	// Live Sync View icons
	createImageDescriptor(ISharedImages.IMG_COMPRESSED_FOLDER, baseURL);
	}

	/**
	* Dispose of images
	*/
	public static void disposeImages() {
	if (disposeOnShutdownImages != null) {
	Iterator i= disposeOnShutdownImages.iterator();
	while (i.hasNext()) {
	Image img= (Image) i.next();
	if (!img.isDisposed())
	img.dispose();
	}
	imageDescriptors= null;
	}
	}

	public void propertyChange(PropertyChangeEvent event) {
	// update the background sync delay
	if(event.getProperty().equals(IPreferenceIds.SYNCVIEW_DELAY)) {
	RefreshSubscriberJob refreshJob = getRefreshJob();
	refreshJob.setRefreshInterval(getPreferenceStore().getInt(IPreferenceIds.SYNCVIEW_DELAY) * 60);
	}

	// enable / disable the background sync job
	if(event.getProperty().equals(IPreferenceIds.SYNCVIEW_SCHEDULED_SYNC)) {
	RefreshSubscriberJob refreshJob = getRefreshJob();
	refreshJob.setRefreshInterval(getPreferenceStore().getInt(IPreferenceIds.SYNCVIEW_DELAY) * 60);
	boolean value = getPreferenceStore().getBoolean(IPreferenceIds.SYNCVIEW_SCHEDULED_SYNC);
	if(value) {
	refreshJob.setRestartOnCancel(true);
	refreshJob.setReschedule(true);
	refreshJob.schedule();
	} else {
	refreshJob.setRestartOnCancel(false /* don't restart the job */);
	refreshJob.setReschedule(false);
	refreshJob.cancel();
	}
	}
	}
	}