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/*******************************************************************************
* Copyright (c) 2004, 2006 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.internal.intro;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.ui.IPluginContribution;
import org.eclipse.ui.internal.registry.IWorkbenchRegistryConstants;
import org.eclipse.ui.intro.IIntroPart;
import org.eclipse.ui.intro.IntroContentDetector;
import org.eclipse.ui.plugin.AbstractUIPlugin;
/**
* Describes an introduction extension.
*
* @since 3.0
*/
public class IntroDescriptor implements IIntroDescriptor, IPluginContribution {
private IConfigurationElement element;
private ImageDescriptor imageDescriptor;
/**
* Create a new IntroDescriptor for an extension.
*/
public IntroDescriptor(IConfigurationElement configElement)
throws CoreException {
element = configElement;
if (configElement.getAttribute(IWorkbenchRegistryConstants.ATT_CLASS) == null) {
throw new CoreException(new Status(IStatus.ERROR, configElement
.getNamespace(), 0,
"Invalid extension (Missing class name): " + getId(), //$NON-NLS-1$
null));
}
}
/* (non-Javadoc)
* @see org.eclipse.ui.intro.IIntroDescriptor#createIntro()
*/
public IIntroPart createIntro() throws CoreException {
return (IIntroPart) element.createExecutableExtension(IWorkbenchRegistryConstants.ATT_CLASS);
}
public IntroContentDetector getIntroContentDetector() throws CoreException {
if (element.getAttribute(IWorkbenchRegistryConstants.ATT_CONTENT_DETECTOR) == null) {
return null;
}
return (IntroContentDetector) element.createExecutableExtension(IWorkbenchRegistryConstants.ATT_CONTENT_DETECTOR);
}
/* (non-Javadoc)
* @see org.eclipse.ui.IIntroDescriptor#getId()
*/
public String getId() {
return element.getAttribute(IWorkbenchRegistryConstants.ATT_ID);
}
/* (non-Javadoc)
* @see org.eclipse.ui.IIntroDescriptor#getImageDescriptor()
*/
public ImageDescriptor getImageDescriptor() {
if (imageDescriptor != null) {
return imageDescriptor;
}
String iconName = element.getAttribute(IWorkbenchRegistryConstants.ATT_ICON);
if (iconName == null) {
return null;
}
imageDescriptor = AbstractUIPlugin.imageDescriptorFromPlugin(element
.getNamespace(), iconName);
return imageDescriptor;
}
/* (non-Javadoc)
* @see org.eclipse.ui.IPluginContribution#getLocalId()
*/
public String getLocalId() {
return element.getAttribute(IWorkbenchRegistryConstants.ATT_ID);
}
/* (non-Javadoc)
* @see org.eclipse.ui.IPluginContribution#getPluginId()
*/
public String getPluginId() {
return element.getNamespace();
}
/**
* Returns the configuration element.
*
* @return the configuration element
* @since 3.1
*/
public IConfigurationElement getConfigurationElement() {
return element;
}
/* (non-Javadoc)
* @see org.eclipse.ui.internal.intro.IIntroDescriptor#getLabelOverride()
*/
public String getLabelOverride() {
return element.getAttribute(IWorkbenchRegistryConstants.ATT_LABEL);
}
}
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