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/*******************************************************************************
* Copyright (c) 2000, 2007 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Atsuhiko Yamanaka, JCraft,Inc. - initial API and implementation.
* IBM Corporation - ongoing maintenance
*******************************************************************************/
package org.eclipse.jsch.internal.ui;
import java.net.URL;
import java.util.Hashtable;
import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.IExtension;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jsch.core.IJSchService;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;
import org.osgi.util.tracker.ServiceTracker;
public class JSchUIPlugin extends AbstractUIPlugin{
public static final String ID="org.eclipse.jsch.ui"; //$NON-NLS-1$
public static final String DECORATOR_ID="org.eclipse.jsch.ui.decorator"; //$NON-NLS-1$
private static Hashtable<String, ImageDescriptor> imageDescriptors = new Hashtable<>(20);
/**
* The singleton plug-in instance
*/
private static JSchUIPlugin plugin;
private ServiceTracker<?, ?> tracker;
public JSchUIPlugin(){
super();
plugin=this;
}
/**
* Returns the singleton plug-in instance.
*
* @return the plugin instance
*/
public static JSchUIPlugin getPlugin(){
return plugin;
}
/**
* Returns the image descriptor for the given image ID.
* Returns null if there is no such image.
* @param id the id of the image descriptor
* @return the image descriptor
*/
public static ImageDescriptor getImageDescriptor(String id){
return imageDescriptors.get(id);
}
/**
* Creates an image and places it in the image registry.
*/
protected void createImageDescriptor(String id){
URL url=FileLocator.find(JSchUIPlugin.getPlugin().getBundle(), new Path(
IUIConstants.ICON_PATH+id), null);
ImageDescriptor desc=ImageDescriptor.createFromURL(url);
imageDescriptors.put(id, desc);
}
/**
* 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) {
URL fullPathString = FileLocator.find(Platform.getBundle(extension.getNamespaceIdentifier()), new Path(subdirectoryAndFilename), null);
return ImageDescriptor.createFromURL(fullPathString);
}
/**
* Initializes the table of images used in this plugin.
*/
private void initializeImages() {
createImageDescriptor(IUIConstants.IMG_KEY_LOCK);
}
@Override
public void start(BundleContext context) throws Exception {
super.start(context);
initializeImages();
IPreferenceStore store = getPreferenceStore();
if (store.getBoolean(IUIConstants.PREF_FIRST_STARTUP)) {
store.setValue(IUIConstants.PREF_FIRST_STARTUP, false);
}
tracker = new ServiceTracker(getBundle().getBundleContext(),IJSchService.class.getName(), null);
tracker.open();
}
@Override
public void stop(BundleContext context) throws Exception{
super.stop(context);
tracker.close();
}
public IJSchService getJSchService() {
return (IJSchService)tracker.getService();
}
public URL getImageUrl(String relative){
return FileLocator.find(Platform.getBundle(ID), new Path(IUIConstants.ICON_PATH + relative), null);
}
}
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