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/*******************************************************************************
* Copyright (c) 2006, 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.internal.ui.mapping;
import java.util.HashSet;
import java.util.Set;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.mapping.*;
import org.eclipse.core.runtime.*;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredViewer;
import org.eclipse.team.core.diff.*;
import org.eclipse.team.core.mapping.ISynchronizationContext;
import org.eclipse.team.internal.ui.TeamUIPlugin;
import org.eclipse.team.internal.ui.Utils;
import org.eclipse.team.ui.mapping.ITeamContentProviderManager;
import org.eclipse.team.ui.mapping.MergeActionHandler;
import org.eclipse.team.ui.synchronize.ISynchronizePageConfiguration;
import org.eclipse.ui.ide.IDE;
public abstract class ResourceMergeActionHandler extends MergeActionHandler implements IDiffChangeListener, IPropertyChangeListener {
public ResourceMergeActionHandler(ISynchronizePageConfiguration configuration) {
super(configuration);
getSynchronizationContext().getDiffTree().addDiffChangeListener(this);
configuration.addPropertyChangeListener(this);
}
/**
* Prompt to save all dirty editors and return whether to proceed
* or not.
* @return whether to proceed
* or not
*/
public final boolean saveDirtyEditors() {
if(needsToSaveDirtyEditors()) {
if(!saveAllEditors(getTargetResources(), confirmSaveOfDirtyEditor())) {
return false;
}
}
return true;
}
private IResource[] getTargetResources() {
IStructuredSelection selection = getStructuredSelection();
Object[] objects = selection.toArray();
Set<IResource> roots = new HashSet<>();
for (int i = 0; i < objects.length; i++) {
Object object = objects[i];
ResourceMapping mapping = Utils.getResourceMapping(object);
if (mapping != null) {
try {
ResourceTraversal[] traversals = mapping.getTraversals(ResourceMappingContext.LOCAL_CONTEXT, null);
for (int j = 0; j < traversals.length; j++) {
ResourceTraversal traversal = traversals[j];
IResource[] resources = traversal.getResources();
for (int k = 0; k < resources.length; k++) {
IResource resource = resources[k];
roots.add(resource);
}
}
} catch (CoreException e) {
TeamUIPlugin.log(e);
}
}
}
return roots.toArray(new IResource[roots.size()]);
}
/**
* Save all dirty editors in the workbench that are open on files that may
* be affected by this operation. Opens a dialog to prompt the user if
* <code>confirm</code> is true. Return true if successful. Return false
* if the user has canceled the command. Must be called from the UI thread.
* @param resources the root resources being operated on
* @param confirm prompt the user if true
* @return boolean false if the operation was canceled.
*/
public final boolean saveAllEditors(IResource[] resources, boolean confirm) {
return IDE.saveAllEditors(resources, confirm);
}
/**
* Return whether dirty editor should be saved before this action is run.
* Default is <code>true</code>.
*
* @return whether dirty editor should be saved before this action is run
*/
protected boolean needsToSaveDirtyEditors() {
return true;
}
/**
* Returns whether the user should be prompted to save dirty editors. The
* default is <code>true</code>.
*
* @return whether the user should be prompted to save dirty editors
*/
protected boolean confirmSaveOfDirtyEditor() {
return true;
}
protected ISynchronizationContext getSynchronizationContext() {
return (ISynchronizationContext)getConfiguration().getProperty(ITeamContentProviderManager.P_SYNCHRONIZATION_CONTEXT);
}
@Override
public void propertyChanged(IDiffTree tree, int property, IPath[] paths) {
// Nothing to do
}
@Override
public void diffsChanged(IDiffChangeEvent event, IProgressMonitor monitor) {
Utils.syncExec((Runnable) () -> updateEnablement(getStructuredSelection()), (StructuredViewer)getConfiguration().getPage().getViewer());
}
@Override
public void propertyChange(PropertyChangeEvent event) {
if (event.getProperty() == ISynchronizePageConfiguration.P_MODE) {
Utils.syncExec((Runnable) () -> updateEnablement(getStructuredSelection()), (StructuredViewer)getConfiguration().getPage().getViewer());
}
}
}
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