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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.internal.ui.synchronize.actions;
import org.eclipse.compare.CompareEditorInput;
import org.eclipse.compare.ICompareNavigator;
import org.eclipse.compare.internal.INavigatable;
import org.eclipse.core.resources.IResource;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.team.core.synchronize.SyncInfo;
import org.eclipse.team.internal.ui.Utils;
import org.eclipse.team.internal.ui.synchronize.SyncInfoModelElement;
import org.eclipse.team.ui.synchronize.ISynchronizeView;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IKeyBindingService;
import org.eclipse.ui.actions.ActionFactory;
/**
* Action to navigate the changes shown in the Synchronize View. This
* will coordinate change browsing between the view and the compare
* editors.
*
* @since 3.0
*/
public class NavigateAction extends Action {
private final boolean next;
private ISynchronizeView view;
private INavigatable navigator;
/**
* Direction to navigate
*/
final public static int NEXT = 1;
final public static int PREVIOUS = 2;
public NavigateAction(ISynchronizeView view, INavigatable navigator, boolean next) {
this.navigator = navigator;
this.view = view;
this.next = next;
IKeyBindingService kbs = view.getSite().getKeyBindingService();
if(next) {
Utils.initAction(this, "action.navigateNext."); //$NON-NLS-1$
view.getViewSite().getActionBars().setGlobalActionHandler(ActionFactory.NEXT.getId(), this);
} else {
Utils.initAction(this, "action.navigatePrevious."); //$NON-NLS-1$
view.getViewSite().getActionBars().setGlobalActionHandler(ActionFactory.PREVIOUS.getId(), this);
}
}
public void run() {
navigate();
}
private void navigate() {
SyncInfo info = getSyncInfoFromSelection();
if(info == null) {
if(navigator.gotoDifference(next)) {
return;
} else {
info = getSyncInfoFromSelection();
if(info == null) return;
}
}
if(info.getLocal().getType() != IResource.FILE) {
if(! navigator.gotoDifference(next)) {
info = getSyncInfoFromSelection();
OpenInCompareAction.openCompareEditor(view, view.getParticipant().getDescriptor().getName(), info, true /* keep focus */);
}
return;
}
IEditorPart editor = OpenInCompareAction.findOpenCompareEditor(view.getSite(), info.getLocal());
boolean atEnd = false;
CompareEditorInput input;
ICompareNavigator navigator;
if(editor != null) {
// if an existing editor is open on the current selection, use it
input = (CompareEditorInput)editor.getEditorInput();
navigator = (ICompareNavigator)input.getAdapter(ICompareNavigator.class);
if(navigator != null) {
if(navigator.selectChange(next)) {
if(! this.navigator.gotoDifference(next)) {
info = getSyncInfoFromSelection();
OpenInCompareAction.openCompareEditor(view, getTitle(), info, true /* keep focus */);
}
}
}
} else {
// otherwise, select the next change and open a compare editor which will automatically
// show the first change.
OpenInCompareAction.openCompareEditor(view, getTitle(), info, true /* keep focus */);
}
}
private SyncInfo getSyncInfoFromSelection() {
IStructuredSelection selection = (IStructuredSelection)view.getSite().getPage().getSelection();
if(selection == null) return null;
Object obj = selection.getFirstElement();
if (obj instanceof SyncInfoModelElement) {
return ((SyncInfoModelElement) obj).getSyncInfo();
} else {
return null;
}
}
private String getTitle() {
return view.getParticipant().getDescriptor().getName();
}
}
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