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/*******************************************************************************
* Copyright (c) 2000, 2003 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.team.ui.synchronize.viewers;
import java.lang.reflect.InvocationTargetException;
import org.eclipse.compare.*;
import org.eclipse.compare.internal.CompareEditor;
import org.eclipse.compare.internal.INavigatable;
import org.eclipse.compare.structuremergeviewer.DiffNode;
import org.eclipse.compare.structuremergeviewer.IDiffElement;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.*;
import org.eclipse.jface.action.Separator;
import org.eclipse.jface.action.ToolBarManager;
import org.eclipse.jface.viewers.*;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.team.core.TeamException;
import org.eclipse.team.internal.ui.Utils;
import org.eclipse.team.internal.ui.synchronize.LocalResourceTypedElement;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.progress.IProgressService;
/**
* A <code>CompareEditorInput</code> whose diff viewer shows the resources contained
* in a <code>SyncInfoSet</code>. The configuration of the diff viewer is determined by the
* <code>SyncInfoSetCompareConfiguration</code> that is used to create the
* <code>SynchronizeCompareInput</code>.
*
* uses the presentation model defined by the configuration.
*
* @since 3.0
*/
public class SynchronizeCompareInput extends CompareEditorInput implements IContentChangeListener {
private TreeViewerAdvisor diffViewerConfiguration;
private Viewer diffViewer;
private NavigationAction nextAction;
private NavigationAction previousAction;
/**
* Create a <code>SynchronizeCompareInput</code> whose diff viewer is configured
* using the provided <code>SyncInfoSetCompareConfiguration</code>.
* @param configuration the compare configuration
* @param diffViewerConfiguration the diff viewer configuration
*/
public SynchronizeCompareInput(CompareConfiguration configuration, TreeViewerAdvisor diffViewerConfiguration) {
super(configuration);
this.diffViewerConfiguration = diffViewerConfiguration;
}
public final Viewer createDiffViewer(Composite parent) {
this.diffViewer = internalCreateDiffViewer(parent, getViewerConfiguration());
diffViewer.getControl().setData(CompareUI.COMPARE_VIEWER_TITLE, getTitle());
// buffered merge mode, don't ask for save when switching nodes
getCompareConfiguration().setProperty(CompareEditor.CONFIRM_SAVE_PROPERTY, new Boolean(false));
/*
* This viewer can participate in navigation support in compare editor inputs. Note that
* it is currently accessing an internal compare interface that should be made public. See
* the following bug report https://bugs.eclipse.org/bugs/show_bug.cgi?id=48795.
*/
INavigatable nav= new INavigatable() {
public boolean gotoDifference(boolean next) {
return diffViewerConfiguration.navigate(next);
}
};
diffViewer.getControl().setData(INavigatable.NAVIGATOR_PROPERTY, nav);
nextAction = new NavigationAction(true);
previousAction = new NavigationAction(false);
nextAction.setCompareEditorInput(this);
previousAction.setCompareEditorInput(this);
initializeToolBar(diffViewer.getControl().getParent());
initializeDiffViewer(diffViewer);
return diffViewer;
}
/**
* Create the diff viewer for this compare input. This method simply creates the widget.
* Any initialization is performed in the <code>initializeDiffViewer(StructuredViewer)</code>
* method. The default diff viewer is a <code>SyncInfoDiffTreeViewer</code>. Subclass may override.
* @param parent the parent <code>Composite</code> of the diff viewer to be created
* @param diffViewerConfiguration the configuration for the diff viewer
* @return the created diff viewer
*/
protected StructuredViewer internalCreateDiffViewer(Composite parent, TreeViewerAdvisor diffViewerConfiguration) {
TreeViewer viewer = new TreeViewerAdvisor.NavigableTreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
GridData data = new GridData(GridData.FILL_BOTH);
viewer.getControl().setLayoutData(data);
diffViewerConfiguration.initializeViewer(viewer);
return viewer;
}
protected TreeViewerAdvisor getViewerConfiguration() {
return diffViewerConfiguration;
}
protected Viewer getViewer() {
return diffViewer;
}
/**
* Initialize the diff viewer created for this compare input. If a subclass
* overrides the <code>createDiffViewer(Composite)</code> method, it should
* invoke this method on the created viewer in order to get the proper
* labelling in the compare input's contents viewers.
* @param viewer the diff viewer created by the compare input
*/
protected void initializeDiffViewer(Viewer viewer) {
if (viewer instanceof StructuredViewer) {
((StructuredViewer) viewer).addOpenListener(new IOpenListener() {
public void open(OpenEvent event) {
ISelection s = event.getSelection();
final SyncInfoModelElement node = getElement(s);
if (node != null) {
IResource resource = node.getResource();
int kind = node.getKind();
if (resource != null && resource.getType() == IResource.FILE) {
// Cache the contents because compare doesn't show progress
// when calling getContents on a diff node.
IProgressService manager = PlatformUI.getWorkbench().getProgressService();
try {
node.cacheContents(new NullProgressMonitor());
hookContentChangeListener(node);
} catch (TeamException e) {
Utils.handle(e);
} finally {
// Update the labels even if the content wasn't fetched correctly. This is
// required because the selection would still of changed.
Utils.updateLabels(node.getSyncInfo(), getCompareConfiguration());
}
}
}
}
});
}
}
private void hookContentChangeListener(DiffNode node) {
ITypedElement left = node.getLeft();
if(left instanceof IContentChangeNotifier) {
((IContentChangeNotifier)left).addContentChangeListener(this);
}
ITypedElement right = node.getRight();
if(right instanceof IContentChangeNotifier) {
((IContentChangeNotifier)right).addContentChangeListener(this);
}
}
public void contributeToToolBar(ToolBarManager tbm) {
if(nextAction != null && previousAction != null) {
tbm.appendToGroup("navigation", nextAction); //$NON-NLS-1$
tbm.appendToGroup("navigation", previousAction); //$NON-NLS-1$
}
}
private void initializeToolBar(Composite parent) {
ToolBarManager tbm= CompareViewerPane.getToolBarManager(parent);
if (tbm != null) {
tbm.removeAll();
tbm.add(new Separator("navigation")); //$NON-NLS-1$
contributeToToolBar(tbm);
tbm.update(true);
}
}
/* private */ SyncInfoModelElement getElement(ISelection selection) {
if (selection != null && selection instanceof IStructuredSelection) {
IStructuredSelection ss= (IStructuredSelection) selection;
if (ss.size() == 1) {
Object o = ss.getFirstElement();
if(o instanceof SyncInfoModelElement) {
return (SyncInfoModelElement)o;
}
}
}
return null;
}
/* (non-Javadoc)
* @see org.eclipse.compare.CompareEditorInput#prepareInput(org.eclipse.core.runtime.IProgressMonitor)
*/
protected Object prepareInput(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
try {
return getViewerConfiguration().prepareInput(monitor);
} catch (TeamException e) {
throw new InvocationTargetException(e);
}
}
/*
* (non-Javadoc)
* @see CompareEditorInput#saveChanges(org.eclipse.core.runtime.IProgressMonitor)
*/
public void saveChanges(IProgressMonitor pm) throws CoreException {
super.saveChanges(pm);
SynchronizeModelElement root = (SynchronizeModelElement)diffViewerConfiguration.getViewer().getInput();
if (root != null) {
try {
commit(pm, root);
} finally {
setDirty(false);
}
}
}
private static void commit(IProgressMonitor pm, DiffNode node) throws CoreException {
ITypedElement left = node.getLeft();
if (left instanceof LocalResourceTypedElement)
((LocalResourceTypedElement) left).commit(pm);
ITypedElement right = node.getRight();
if (right instanceof LocalResourceTypedElement)
((LocalResourceTypedElement) right).commit(pm);
//node.getC
IDiffElement[] children = (IDiffElement[])node.getChildren();
for (int i = 0; i < children.length; i++) {
commit(pm, (DiffNode)children[i]);
}
}
/* (non-Javadoc)
* @see org.eclipse.compare.IContentChangeListener#contentChanged(org.eclipse.compare.IContentChangeNotifier)
*/
public void contentChanged(IContentChangeNotifier source) {
setDirty(true);
}
}
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