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/*******************************************************************************
* Copyright (c) 2000, 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.ui.externaltools.internal.model;
import java.net.MalformedURLException;
import java.net.URL;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
/**
* External tools plug-in class
*/
public final class ExternalToolsPlugin extends AbstractUIPlugin {
/**
* Status representing no problems encountered during operation.
*/
public static final IStatus OK_STATUS = new Status(IStatus.OK, IExternalToolConstants.PLUGIN_ID, 0, "", null); //$NON-NLS-1$
private static ExternalToolsPlugin plugin;
private static final String EMPTY_STRING= ""; //$NON-NLS-1$
/**
* Create an instance of the External Tools plug-in.
*/
public ExternalToolsPlugin() {
super();
plugin = this;
}
/**
* Returns the default instance of the receiver.
* This represents the runtime plugin.
*/
public static ExternalToolsPlugin getDefault() {
return plugin;
}
/**
* Returns a new <code>IStatus</code> for this plug-in
*/
public static IStatus newErrorStatus(String message, Throwable exception) {
if (message == null) {
message= EMPTY_STRING;
}
return new Status(IStatus.ERROR, IExternalToolConstants.PLUGIN_ID, 0, message, exception);
}
/**
* Returns a new <code>CoreException</code> for this plug-in
*/
public static CoreException newError(String message, Throwable exception) {
return new CoreException(new Status(IStatus.ERROR, IExternalToolConstants.PLUGIN_ID, 0, message, exception));
}
/**
* Writes the message to the plug-in's log
*
* @param message the text to write to the log
*/
public void log(String message, Throwable exception) {
IStatus status = newErrorStatus(message, exception);
getLog().log(status);
}
public void log(Throwable exception) {
//this message is intentionally not internationalized, as an exception may
// be due to the resource bundle itself
getLog().log(newErrorStatus("Internal error logged from External Tools UI: ", exception)); //$NON-NLS-1$
}
/**
* Returns the ImageDescriptor for the icon with the given path
*
* @return the ImageDescriptor object
*/
public ImageDescriptor getImageDescriptor(String path) {
try {
Bundle bundle= getDefault().getBundle();
URL installURL = bundle.getEntry("/"); //$NON-NLS-1$
URL url = new URL(installURL, path);
return ImageDescriptor.createFromURL(url);
} catch (MalformedURLException e) {
return null;
}
}
/**
* Returns the active workbench window or <code>null</code> if none
*/
public static IWorkbenchWindow getActiveWorkbenchWindow() {
return getDefault().getWorkbench().getActiveWorkbenchWindow();
}
/**
* Returns the active workbench page or <code>null</code> if none.
*/
public static IWorkbenchPage getActivePage() {
IWorkbenchWindow window= getActiveWorkbenchWindow();
if (window != null) {
return window.getActivePage();
}
return null;
}
/**
* Returns the active workbench shell or <code>null</code> if none.
*/
public static Shell getActiveWorkbenchShell() {
IWorkbenchWindow window = getActiveWorkbenchWindow();
if (window != null) {
return window.getShell();
}
return null;
}
/**
* Returns the standard display to be used. The method first checks, if
* the thread calling this method has an associated display. If so, this
* display is returned. Otherwise the method returns the default display.
*/
public static Display getStandardDisplay() {
Display display = Display.getCurrent();
if (display == null) {
display = Display.getDefault();
}
return display;
}
/* (non-Javadoc)
* @see org.eclipse.ui.plugin.AbstractUIPlugin#createImageRegistry()
*/
protected ImageRegistry createImageRegistry() {
return ExternalToolsImages.initializeImageRegistry();
}
/* (non-Javadoc)
* @see org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
*/
public void stop(BundleContext context) throws Exception {
try {
ExternalToolsImages.disposeImageDescriptorRegistry();
} finally {
super.stop(context);
}
}
}
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