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/*******************************************************************************
* Copyright (c) 2000, 2017 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.mapping;
import java.util.*;
import org.eclipse.compare.structuremergeviewer.ICompareInput;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.mapping.ModelProvider;
import org.eclipse.core.resources.mapping.ResourceMapping;
import org.eclipse.core.runtime.*;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.team.core.diff.IDiff;
import org.eclipse.team.core.mapping.ISynchronizationContext;
import org.eclipse.team.internal.ui.TeamUIMessages;
import org.eclipse.team.internal.ui.Utils;
import org.eclipse.team.internal.ui.mapping.ResourceDiffCompareInput;
import org.eclipse.team.ui.TeamUI;
import org.eclipse.ui.model.IWorkbenchAdapter;
/**
* An abstract implementation of {@link ISynchronizationCompareAdapter}.
* <p>
* Clients may subclass this class.
*
* @since 3.2
*/
public abstract class SynchronizationCompareAdapter implements ISynchronizationCompareAdapter {
/**
* Default implementation that is capable of returning a compare input for objects
* that adapt to {@link IFile}. Subclasses should override if compare inputs are
* available for other types of model elements.
* @see ISynchronizationCompareAdapter#asCompareInput(ISynchronizationContext, Object)
*/
@Override
public ICompareInput asCompareInput(ISynchronizationContext context, Object o) {
IResource resource = Utils.getResource(o);
if (resource != null) {
if (resource.getType() == IResource.FILE) {
IDiff node = context.getDiffTree().getDiff(resource);
if (node != null)
return new ResourceDiffCompareInput(node, context);
}
}
return null;
}
@Override
public boolean hasCompareInput(ISynchronizationContext context, Object object) {
return asCompareInput(context, object) != null;
}
@Override
public String getName(ResourceMapping mapping) {
Object object = mapping.getModelObject();
IWorkbenchAdapter adapter = Adapters.adapt(object, IWorkbenchAdapter.class);
if (adapter != null) {
String label = adapter.getLabel(object);
if (label != null)
return label;
}
IResource resource = Utils.getResource(object);
if (resource != null)
return resource.getName();
if (object instanceof ModelProvider) {
ModelProvider provider = (ModelProvider) object;
if (provider.getId().equals(ModelProvider.RESOURCE_MODEL_PROVIDER_ID)) {
return TeamUIMessages.SynchronizationCompareAdapter_0;
}
return provider.getDescriptor().getLabel();
}
return ""; //$NON-NLS-1$
}
@Override
public String getPathString(ResourceMapping mapping) {
Object object = mapping.getModelObject();
IWorkbenchAdapter adapter = Adapters.adapt(object, IWorkbenchAdapter.class);
if (adapter != null) {
List<String> segments = new ArrayList<>();
Object parent = object;
do {
String segment = adapter.getLabel(parent);
if (segment != null && segment.length() > 0)
segments.add(0, segment);
parent = adapter.getParent(parent);
} while (parent != null);
if (!segments.isEmpty()) {
IPath path = Path.EMPTY;
for (Iterator iter = segments.iterator(); iter.hasNext();) {
String segment = (String) iter.next();
path = path.append(segment);
}
return path.toString();
}
}
return getName(mapping);
}
@Override
public ImageDescriptor getImageDescriptor(ResourceMapping mapping) {
Object object = mapping.getModelObject();
ImageDescriptor image = getImageDescriptorFromWorkbenchAdapter(object);
if (image != null)
return image;
IResource resource = Utils.getResource(object);
if (resource != null) {
image = getImageDescriptorFromWorkbenchAdapter(resource);
if (image != null)
return image;
}
if (object instanceof ModelProvider) {
ModelProvider provider = (ModelProvider) object;
ITeamContentProviderDescriptor desc = TeamUI.getTeamContentProviderManager().getDescriptor(provider.getId());
if (desc != null)
return desc.getImageDescriptor();
}
return null;
}
private ImageDescriptor getImageDescriptorFromWorkbenchAdapter(Object object) {
IWorkbenchAdapter adapter = Adapters.adapt(object, IWorkbenchAdapter.class);
if (adapter != null) {
return adapter.getImageDescriptor(object);
}
return null;
}
/**
* Return the synchronization state of the resource mapping with respect to
* the given team state provider. This method is invoked from instances of
* {@link ITeamStateProvider} when the synchronization state description for
* an element is requested.
*
* @param provider
* the team state provider
* @param mapping
* the element
* @param stateMask
* the state mask that indicates which state flags are desired
* @param monitor
* a progress monitor
* @return the synchronization state of the element or -1 if the calculation
* of the state should be done using the resources of the mapping.
* @throws CoreException
*
* @since 3.3
*/
@Override
public int getSynchronizationState(ITeamStateProvider provider, ResourceMapping mapping, int stateMask, IProgressMonitor monitor) throws CoreException {
return -1;
}
}
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