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/*******************************************************************************
* Copyright (c) 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.team.ui.synchronize;
import java.util.HashSet;
import java.util.Set;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.mapping.ResourceMapping;
import org.eclipse.core.runtime.*;
import org.eclipse.team.core.RepositoryProvider;
import org.eclipse.team.core.RepositoryProviderType;
import org.eclipse.team.internal.ui.Utils;
import org.eclipse.team.internal.ui.registry.TeamDecoratorDescription;
import org.eclipse.team.internal.ui.registry.TeamDecoratorManager;
import org.eclipse.team.ui.mapping.*;
import org.eclipse.ui.PlatformUI;
/**
* A team state provider is used by the {@link SynchronizationStateTester} to obtain
* the team state for model elements. A team state provider is
* associated with a {@link RepositoryProviderType} using the adaptable mechanism. A default
* team state provider that uses the subscriber of the type is provided.
* <p>
* Clients may subclass this class.
*
* @see IAdapterManager
* @see RepositoryProviderType
* @since 3.2
*/
public abstract class TeamStateProvider implements ITeamStateProvider {
private ListenerList listeners = new ListenerList(ListenerList.IDENTITY);
/**
* Determine if the decorator for the element is enabled by consulting the
* <code>teamDecorator</code> extension point to determine the decorator
* id associated with the resources the element maps to. Subclasses may
* override.
*
* @see org.eclipse.team.ui.mapping.ITeamStateProvider#isDecorationEnabled(java.lang.Object)
*/
public boolean isDecorationEnabled(Object element) {
ResourceMapping mapping = Utils.getResourceMapping(element);
if (mapping != null) {
IProject[] projects = mapping.getProjects();
return internalIsDecorationEnabled(projects);
}
return false;
}
/**
* Determine the decorated state for the element by consulting the
* <code>teamDecorator</code> extension point to get the decorated state
* mask associated with the resources the element maps to. Subclasses may
* override.
*
* @see org.eclipse.team.ui.mapping.ITeamStateProvider#getDecoratedStateMask(java.lang.Object)
*/
public int getDecoratedStateMask(Object element) {
ResourceMapping mapping = Utils.getResourceMapping(element);
if (mapping != null) {
IProject[] projects = mapping.getProjects();
return internalGetDecoratedStateMask(projects);
}
return 0;
}
/* (non-Javadoc)
* @see org.eclipse.team.ui.mapping.ITeamStateProvider#addDecoratedStateChangeListener(org.eclipse.team.ui.mapping.ITeamStateChangeListener)
*/
public void addDecoratedStateChangeListener(ITeamStateChangeListener listener) {
listeners.add(listener);
}
/* (non-Javadoc)
* @see org.eclipse.team.ui.mapping.ITeamStateProvider#removeDecoratedStateChangeListener(org.eclipse.team.ui.mapping.ITeamStateChangeListener)
*/
public void removeDecoratedStateChangeListener(ITeamStateChangeListener listener) {
listeners.remove(listener);
}
/**
* Fire the change event to all listeners.
* @param event the change event
*/
protected final void fireStateChangeEvent(final ITeamStateChangeEvent event) {
Object[] allListeners = listeners.getListeners();
for (int i = 0; i < allListeners.length; i++) {
final ITeamStateChangeListener listener = (ITeamStateChangeListener)allListeners[i];
SafeRunner.run(new ISafeRunnable() {
public void run() throws Exception {
listener.teamStateChanged(event);
}
public void handleException(Throwable exception) {
// Logged by the runner
}
});
}
}
private int internalGetDecoratedStateMask(IProject[] projects) {
int stateMask = 0;
String[] providerIds = getProviderIds(projects);
for (int i = 0; i < providerIds.length; i++) {
String providerId = providerIds[i];
stateMask |= internalGetDecoratedStateMask(providerId);
}
return stateMask;
}
private int internalGetDecoratedStateMask(String providerId) {
TeamDecoratorDescription decoratorDescription = TeamDecoratorManager
.getInstance().getDecoratorDescription(providerId);
if (decoratorDescription != null)
return decoratorDescription.getDecoratedDirectionFlags();
return 0;
}
private String[] getProviderIds(IProject[] projects) {
Set providerIds = new HashSet();
for (int i = 0; i < projects.length; i++) {
IProject project = projects[i];
String id = getProviderId(project);
if (id != null)
providerIds.add(id);
}
return (String[]) providerIds.toArray(new String[providerIds.size()]);
}
private String getProviderId(IProject project) {
RepositoryProvider provider = RepositoryProvider.getProvider(project);
if (provider != null)
return provider.getID();
return null;
}
private boolean internalIsDecorationEnabled(IProject[] projects) {
String[] providerIds = getProviderIds(projects);
for (int i = 0; i < providerIds.length; i++) {
String providerId = providerIds[i];
if (internalIsDecorationEnabled(providerId)) {
return true;
}
}
return false;
}
private boolean internalIsDecorationEnabled(String providerId) {
String decoratorId = getDecoratorId(providerId);
if (decoratorId != null) {
return PlatformUI.getWorkbench().getDecoratorManager().getEnabled(
decoratorId);
}
return false;
}
private String getDecoratorId(String providerId) {
TeamDecoratorDescription decoratorDescription = TeamDecoratorManager
.getInstance().getDecoratorDescription(providerId);
if (decoratorDescription != null)
return decoratorDescription.getDecoratorId();
return null;
}
}
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