| /******************************************************************************* |
| * Copyright (c) 2000, 2004 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; |
| |
| import org.eclipse.compare.CompareViewerSwitchingPane; |
| import org.eclipse.compare.internal.INavigatable; |
| import org.eclipse.compare.internal.IOpenable; |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.team.internal.ui.synchronize.actions.NavigateAction; |
| |
| /** |
| * A navigator that coordinates navigation between several navigable |
| * objects. This is copied from the compare plugin and enhanced to |
| * support navigating adaptables. |
| * <p> |
| * This navigator can be used as input to the {@link NavigateAction} |
| * actions and should be passed to the actions via the |
| * {@link SynchronizePageConfiguration.P_NAVIGATOR}. |
| * </p> |
| * @since 3.0 |
| */ |
| public class PartNavigator implements INavigatable { |
| |
| private Object[] fPanes; |
| // Fix for http://dev.eclipse.org/bugs/show_bug.cgi?id=20106 |
| private boolean fNextFirstTime= true; |
| |
| public PartNavigator(Object[] panes) { |
| fPanes= panes; |
| } |
| |
| public Object[] getPanes() { |
| return fPanes; |
| } |
| |
| public boolean gotoDifference(boolean next) { |
| |
| // Fix for http://dev.eclipse.org/bugs/show_bug.cgi?id=20106 |
| if (next && fNextFirstTime && mustOpen()) { |
| fNextFirstTime= false; |
| openElement(); |
| } |
| |
| // find most down stream CompareViewerPane |
| int n= 0; |
| INavigatable[] navigators= new INavigatable[4]; |
| for (int i= 0; i < fPanes.length; i++) { |
| navigators[n]= getNavigator(fPanes[i]); |
| if (navigators[n] != null) |
| n++; |
| } |
| |
| while (n > 0) { |
| n--; |
| if (navigators[n].gotoDifference(next)) { |
| // at end of this navigator |
| continue; |
| } else // not at end |
| return false; |
| } |
| return true; |
| } |
| |
| private static INavigatable getNavigator(Object p) { |
| if (p == null) |
| return null; |
| Control control = null; |
| if (p instanceof CompareViewerSwitchingPane) { |
| CompareViewerSwitchingPane pane = (CompareViewerSwitchingPane) p; |
| if (pane.isEmpty()) |
| return null; |
| Viewer viewer = pane.getViewer(); |
| if (viewer == null) |
| return null; |
| control = viewer.getControl(); |
| if (control == null) |
| return null; |
| Object data = control.getData(INavigatable.NAVIGATOR_PROPERTY); |
| if (data instanceof INavigatable) |
| return (INavigatable) data; |
| } else if(p instanceof IAdaptable) { |
| return (INavigatable)((IAdaptable)p).getAdapter(INavigatable.class); |
| } |
| return null; |
| } |
| |
| /* |
| * Fix for http://dev.eclipse.org/bugs/show_bug.cgi?id=20106 |
| */ |
| private boolean mustOpen() { |
| if (fPanes == null || fPanes.length == 0) |
| return false; |
| for (int i= 1; i < fPanes.length; i++) { |
| Object p= fPanes[i]; |
| if (p instanceof CompareViewerSwitchingPane) { |
| CompareViewerSwitchingPane pane = (CompareViewerSwitchingPane) p; |
| if (pane != null && pane.getInput() != null) |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| /* |
| * Fix for http://dev.eclipse.org/bugs/show_bug.cgi?id=20106 |
| */ |
| private void openElement() { |
| if (fPanes == null || fPanes.length == 0) |
| return; |
| IOpenable openable= getOpenable(fPanes[0]); |
| if (openable != null) { |
| openable.openSelected(); |
| } |
| } |
| |
| /* |
| * Fix for http://dev.eclipse.org/bugs/show_bug.cgi?id=20106 |
| */ |
| private static IOpenable getOpenable(Object p) { |
| if (p instanceof CompareViewerSwitchingPane) { |
| CompareViewerSwitchingPane pane = (CompareViewerSwitchingPane) p; |
| if (pane == null) |
| return null; |
| if (pane.isEmpty()) |
| return null; |
| Viewer viewer = pane.getViewer(); |
| if (viewer == null) |
| return null; |
| Control control = viewer.getControl(); |
| if (control == null) |
| return null; |
| Object data = control.getData(IOpenable.OPENABLE_PROPERTY); |
| if (data instanceof IOpenable) |
| return (IOpenable) data; |
| } |
| return null; |
| } |
| } |