| package org.eclipse.equinox.p2.examples.rcp.cloud; |
| |
| import org.eclipse.equinox.p2.examples.rcp.cloud.p2.CloudPolicy; |
| import org.eclipse.equinox.p2.ui.Policy; |
| import org.eclipse.equinox.p2.ui.ProvisioningUI; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.jface.util.IPropertyChangeListener; |
| import org.eclipse.jface.util.PropertyChangeEvent; |
| import org.eclipse.ui.plugin.AbstractUIPlugin; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.ServiceRegistration; |
| |
| /** |
| * The activator class controls the plug-in life cycle |
| */ |
| public class Activator extends AbstractUIPlugin { |
| |
| // The plug-in ID |
| public static final String PLUGIN_ID = "org.eclipse.equinox.p2.examples.rcp.cloud"; |
| |
| // The shared instance |
| private static Activator plugin; |
| |
| ServiceRegistration policyRegistration; |
| CloudPolicy policy; |
| IPropertyChangeListener preferenceListener; |
| |
| |
| /** |
| * The constructor |
| */ |
| public Activator() { |
| } |
| |
| /* |
| * (non-Javadoc) |
| * @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext) |
| */ |
| public void start(BundleContext context) throws Exception { |
| super.start(context); |
| plugin = this; |
| // XXX register the p2 UI policy |
| registerP2Policy(context); |
| getPreferenceStore().addPropertyChangeListener(getPreferenceListener()); |
| } |
| |
| private IPropertyChangeListener getPreferenceListener() { |
| if (preferenceListener == null) { |
| preferenceListener = new IPropertyChangeListener() { |
| public void propertyChange(PropertyChangeEvent event) { |
| policy.updateForPreferences(); |
| } |
| }; |
| } |
| return preferenceListener; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext) |
| */ |
| public void stop(BundleContext context) throws Exception { |
| plugin = null; |
| // XXX unregister the UI policy |
| policyRegistration.unregister(); |
| policyRegistration = null; |
| getPreferenceStore().removePropertyChangeListener(preferenceListener); |
| preferenceListener = null; |
| super.stop(context); |
| |
| } |
| |
| /** |
| * Returns the shared instance |
| * |
| * @return the shared instance |
| */ |
| public static Activator getDefault() { |
| return plugin; |
| } |
| |
| /** |
| * Returns an image descriptor for the image file at the given |
| * plug-in relative path |
| * |
| * @param path the path |
| * @return the image descriptor |
| */ |
| public static ImageDescriptor getImageDescriptor(String path) { |
| return imageDescriptorFromPlugin(PLUGIN_ID, path); |
| } |
| |
| private void registerP2Policy(BundleContext context) { |
| policy = new CloudPolicy(); |
| policy.updateForPreferences(); |
| policyRegistration = context.registerService(Policy.class.getName(), policy, null); |
| } |
| } |