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/*****************************************************************************
* Copyright (c) 2010 CEA LIST.
*
* 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:
* Remi Schnekenburger (CEA LIST) remi.schnekenburger@cea.fr - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.properties.runtime.controller;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.gmf.runtime.common.core.service.ExecutionStrategy;
import org.eclipse.gmf.runtime.common.core.service.IOperation;
import org.eclipse.gmf.runtime.common.core.service.IProvider;
import org.eclipse.gmf.runtime.common.core.service.Service;
import org.eclipse.gmf.runtime.common.ui.services.util.ActivityFilterProviderDescriptor;
import org.eclipse.papyrus.properties.runtime.Activator;
import org.eclipse.papyrus.properties.runtime.controller.descriptor.IPropertyEditorControllerDescriptor;
import org.eclipse.papyrus.properties.runtime.controller.predefined.CreatePredefinedPropertyControllerProviderOperation;
import org.eclipse.papyrus.properties.runtime.controller.predefined.GetAllPredefinedPropertyEditorControllersOperation;
import org.eclipse.papyrus.properties.runtime.controller.predefined.PredefinedControllerDescriptor;
import org.eclipse.papyrus.properties.runtime.controller.predefined.PredefinedPropertyControllerProvider;
import org.eclipse.swt.widgets.Composite;
import org.osgi.framework.Bundle;
import org.w3c.dom.Node;
/**
* Service to provide property editor controllers.
*/
public class PropertyEditorControllerService extends Service {
/** instance of this service */
protected static PropertyEditorControllerService instance;
/**
* Creates a new PropertyEditorControllerService. This constructor is not visible, using singleton pattern.
*/
protected PropertyEditorControllerService() {
super();
}
/**
* Returns the singleton instance of this service.
*
* @return the singleton instance of this service
*/
/**
* Returns the singleton instance of this service
*
* @return the singleton instance of this service
*/
public synchronized static PropertyEditorControllerService getInstance() {
if(instance == null) {
instance = new PropertyEditorControllerService();
instance.configureProviders(Activator.ID, "propertyEditorControllerProvider"); //$NON-NLS-1$
}
return instance;
}
/**
* Creates the descriptor that will parse the content of the xml file
*
* @param controllerId
* the id of the configured controller
* @param controllerNode
* the content node
* @param bundle
* the bundle used to load classes for the controller
* @return the created descriptor
*/
public IPropertyEditorControllerDescriptor createPropertyEditorControllerDescriptor(String controllerId, Node controllerNode, Bundle bundle) {
return (IPropertyEditorControllerDescriptor)executeUnique(ExecutionStrategy.REVERSE, new CreatePropertyEditorControllerDescriptorOperation(controllerId, controllerNode, bundle));
}
/**
* Creates the descriptor for a predefined controller
*
* @param predefinedID
* the id of the predefined controller
* @return the created descriptor
*/
public IPropertyEditorControllerDescriptor createPredefinedControllerDescriptor(String predefinedID) {
return (IPropertyEditorControllerDescriptor)executeUnique(ExecutionStrategy.REVERSE, new CreatePredefinedPropertyControllerProviderOperation(predefinedID));
}
/**
* Returns the flatten collection of all available predefined controllers
*
* @return the flatten collection of all available predefined controllers
*/
@SuppressWarnings("unchecked")
public Map<String, PredefinedControllerDescriptor> getAllPredefinedControllers() {
List<Map<String, PredefinedControllerDescriptor>> predefinedControllers = (List<Map<String, PredefinedControllerDescriptor>>)execute(ExecutionStrategy.REVERSE, new GetAllPredefinedPropertyEditorControllersOperation());
Map<String, PredefinedControllerDescriptor> flattenMap = new HashMap<String, PredefinedControllerDescriptor>();
for(Map<String, PredefinedControllerDescriptor> subList : predefinedControllers) {
flattenMap.putAll(subList);
}
return flattenMap;
}
/**
* Creates the property editor controller
*
* @param objectsToEdit
* list of objects to edit
* @param parent
* parent of all controls created by the editor
* @param descriptor
* the controller descriptor that manages the editor
* @return the created property editor controller
*/
public PropertyEditorController createPropertyEditorController(List<Object> objectsToEdit, Composite parent, IPropertyEditorControllerDescriptor descriptor) {
Object result = executeUnique(ExecutionStrategy.REVERSE, new CreatePropertyEditorControllerOperation(descriptor.getControllerID(), objectsToEdit, parent, descriptor));
return (PropertyEditorController)result;
}
/**
* @see org.eclipse.gmf.runtime.common.core.service.Service#newProviderDescriptor(org.eclipse.core.runtime.IConfigurationElement)
*/
protected Service.ProviderDescriptor newProviderDescriptor(IConfigurationElement element) {
return new ProviderDescriptor(element);
}
/**
* A descriptor for property editor controller providers defined by a configuration element.
*/
protected static class ProviderDescriptor extends ActivityFilterProviderDescriptor {
/**
* Constructs a <code>ISemanticProvider</code> descriptor for
* the specified configuration element.
*
* @param element
* The configuration element describing the provider.
*/
public ProviderDescriptor(IConfigurationElement element) {
super(element);
}
/**
* @see org.eclipse.gmf.runtime.common.core.service.IProvider#provides(org.eclipse.gmf.runtime.common.core.service.IOperation)
*/
public boolean provides(IOperation operation) {
if(!super.provides(operation)) {
return false;
}
if(operation instanceof CreatePropertyEditorControllerOperation) {
// test if the configuration corresponds to the feature or the id of the operation
return getProvider().provides(operation);
}
if(operation instanceof CreatePredefinedPropertyControllerProviderOperation) {
// test if the configuration corresponds to the feature or the id of the operation
return getProvider().provides(operation);
}
if(operation instanceof CreatePropertyEditorControllerDescriptorOperation) {
return getProvider().provides(operation);
}
if(operation instanceof GetAllPredefinedPropertyEditorControllersOperation) {
return getProvider().provides(operation);
}
return false;
}
/**
* {@inheritDoc}
*/
@Override
public IProvider getProvider() {
if(provider == null) {
IProvider newProvider = super.getProvider();
if(provider instanceof PropertyEditorControllerProvider) {
PropertyEditorControllerProvider defaultProvider = (PropertyEditorControllerProvider)newProvider;
defaultProvider.configure(getElement());
} else if(provider instanceof PredefinedPropertyControllerProvider) {
PredefinedPropertyControllerProvider defaultProvider = (PredefinedPropertyControllerProvider)newProvider;
defaultProvider.configure(getElement());
}
return newProvider;
}
return super.getProvider();
}
}
}
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