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/*******************************************************************************
* Copyright (c) 2011, 2012 Wind River Systems, Inc. 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:
* Wind River Systems - initial API and implementation
* Tobias Schwarz (Wind River) - [368243] [UI] Allow dynamic new wizard contributions
*******************************************************************************/
package org.eclipse.tcf.te.ui.wizards.newWizard;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtensionPoint;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.tcf.te.ui.activator.UIPlugin;
import org.eclipse.tcf.te.ui.wizards.interfaces.INewWizardProvider;
import org.eclipse.ui.internal.registry.IWorkbenchRegistryConstants;
import org.eclipse.ui.internal.wizards.AbstractExtensionWizardRegistry;
import org.eclipse.ui.wizards.IWizardCategory;
import org.eclipse.ui.wizards.IWizardDescriptor;
/**
* New wizard registry.
*
* @see org.eclipse.ui.internal.wizards.NewWizardRegistry
*/
@SuppressWarnings("restriction")
public final class NewWizardRegistry extends AbstractExtensionWizardRegistry {
private List<INewWizardProvider> newWizardProvider = new ArrayList<INewWizardProvider>();
/*
* Thread save singleton instance creation.
*/
private static class LazyInstance {
public static NewWizardRegistry instance = new NewWizardRegistry();
}
/**
* Constructor.
*/
/* default */ NewWizardRegistry() {
super();
}
/**
* Returns the singleton instance of the wizard registry.
*/
public static NewWizardRegistry getInstance() {
return LazyInstance.instance;
}
/* (non-Javadoc)
* @see org.eclipse.ui.internal.wizards.AbstractExtensionWizardRegistry#doInitialize()
*/
@Override
protected void doInitialize() {
super.doInitialize();
IExtensionPoint point = Platform.getExtensionRegistry().getExtensionPoint(getPlugin(), "wizardProviders"); //$NON-NLS-1$
for (IConfigurationElement element : point.getConfigurationElements()) {
if (element.getName().equals("wizardProvider")) { //$NON-NLS-1$
try {
INewWizardProvider provider = (INewWizardProvider)element.createExecutableExtension("class"); //$NON-NLS-1$
newWizardProvider.add(provider);
}
catch (CoreException e) {
}
}
}
}
/* (non-Javadoc)
* @see org.eclipse.ui.internal.wizards.AbstractExtensionWizardRegistry#getExtensionPoint()
*/
@Override
protected String getExtensionPoint() {
return IWorkbenchRegistryConstants.PL_NEW;
}
/* (non-Javadoc)
* @see org.eclipse.ui.internal.wizards.AbstractExtensionWizardRegistry#getPlugin()
*/
@Override
protected String getPlugin() {
return UIPlugin.getUniqueIdentifier();
}
/* (non-Javadoc)
* @see org.eclipse.ui.internal.wizards.AbstractWizardRegistry#findWizard(java.lang.String)
*/
@Override
public IWizardDescriptor findWizard(String id) {
return getRootCategory().findWizard(id);
}
/* (non-Javadoc)
* @see org.eclipse.ui.internal.wizards.AbstractWizardRegistry#getPrimaryWizards()
*/
@Override
public IWizardDescriptor [] getPrimaryWizards() {
return super.getPrimaryWizards();
}
/* (non-Javadoc)
* @see org.eclipse.ui.internal.wizards.AbstractWizardRegistry#findCategory(java.lang.String)
*/
@Override
public IWizardCategory findCategory(String id) {
IWizardCategory root = getRootCategory();
if (root instanceof NewWizardCategory) {
((NewWizardCategory)root).findCategory(id);
}
return super.findCategory(id);
}
/* (non-Javadoc)
* @see org.eclipse.ui.internal.wizards.AbstractWizardRegistry#getRootCategory()
*/
@Override
public IWizardCategory getRootCategory() {
initialize();
if (!newWizardProvider.isEmpty()) {
NewWizardCategory root = new NewWizardCategory(super.getRootCategory());
for (INewWizardProvider provider : newWizardProvider) {
for (IWizardCategory category : provider.getCategories()) {
root.addCategory(category);
}
}
return root;
}
return super.getRootCategory();
}
/**
* Get the list of common wizards for the given selection.
*
* @param selection The current selection.
* @return The list of common wizards.
*/
public IWizardDescriptor[] getCommonWizards(ISelection selection) {
initialize();
List<IWizardDescriptor> allWizards = new ArrayList<IWizardDescriptor>();
for (INewWizardProvider provider : newWizardProvider) {
IWizardDescriptor[] wizards = provider.getCommonWizards(selection);
if (wizards != null && wizards.length > 0) {
allWizards.addAll(Arrays.asList(wizards));
}
}
return allWizards.toArray(new IWizardDescriptor[allWizards.size()]);
}
}
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