| /******************************************************************************* |
| * Copyright (c) 2003, 2012 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.egit.ui.internal; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.mapping.ResourceMapping; |
| import org.eclipse.core.resources.mapping.ResourceMappingContext; |
| import org.eclipse.core.resources.mapping.ResourceTraversal; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.egit.ui.Activator; |
| import org.eclipse.osgi.util.NLS; |
| import org.eclipse.ui.IEditorPart; |
| import org.eclipse.ui.ISaveableFilter; |
| import org.eclipse.ui.IWorkbenchPart; |
| import org.eclipse.ui.Saveable; |
| import org.eclipse.ui.ide.ResourceUtil; |
| |
| /* |
| * Copied from org.eclipse.ui.ide.IDE.SaveFilter, see |
| * https://bugs.eclipse.org/bugs/show_bug.cgi?id=386609 |
| * Replace with the above when we can depend on Eclipse 4.3. |
| */ |
| /** |
| * A saveable filter that selects savables that contain resources that |
| * are descendants of the roots of the filter. |
| * @since 3.3 |
| * |
| */ |
| class SaveFilter implements ISaveableFilter { |
| private final IResource[] roots; |
| |
| /** |
| * Create the filter |
| * @param roots the save roots |
| */ |
| public SaveFilter(IResource[] roots) { |
| this.roots = roots; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.ISaveableFilter#select(org.eclipse.ui.Saveable, org.eclipse.ui.IWorkbenchPart[]) |
| */ |
| @Override |
| public boolean select(Saveable saveable, |
| IWorkbenchPart[] containingParts) { |
| if (isDescendantOfRoots(saveable)) { |
| return true; |
| } |
| // For backwards compatibility, we need to check the parts |
| for (IWorkbenchPart workbenchPart : containingParts) { |
| if (workbenchPart instanceof IEditorPart) { |
| IEditorPart editorPart = (IEditorPart) workbenchPart; |
| if (isEditingDescendantOf(editorPart)) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Return whether the given saveable contains any resources that |
| * are descendants of the root resources. |
| * @param saveable the saveable |
| * @return whether the given saveable contains any resources that |
| * are descendants of the root resources |
| */ |
| private boolean isDescendantOfRoots(Saveable saveable) { |
| // First, try and adapt the saveable to a resource mapping. |
| ResourceMapping mapping = ResourceUtil.getResourceMapping(saveable); |
| if (mapping != null) { |
| try { |
| ResourceTraversal[] traversals = mapping.getTraversals( |
| ResourceMappingContext.LOCAL_CONTEXT, null); |
| for (ResourceTraversal traversal : traversals) { |
| IResource[] resources = traversal.getResources(); |
| for (IResource resource : resources) { |
| if (isDescendantOfRoots(resource)) { |
| return true; |
| } |
| } |
| } |
| } catch (CoreException e) { |
| Activator.logError(NLS.bind( |
| "An internal error occurred while determining the resources for {0}", //$NON-NLS-1$ |
| saveable.getName()), e); |
| } |
| } else { |
| // If there is no mapping, try to adapt to a resource or file directly |
| IFile file = ResourceUtil.getFile(saveable); |
| if (file != null) { |
| return isDescendantOfRoots(file); |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Return whether the given resource is either equal to or a descendant of |
| * one of the given roots. |
| * |
| * @param resource the resource to be tested |
| * @return whether the given resource is either equal to or a descendant of |
| * one of the given roots |
| */ |
| private boolean isDescendantOfRoots(IResource resource) { |
| for (IResource root : roots) { |
| if (root.getFullPath().isPrefixOf(resource.getFullPath())) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Return whether the given dirty editor part is editing resources that are |
| * descendants of the given roots. |
| * |
| * @param part the dirty editor part |
| * @return whether the given dirty editor part is editing resources that are |
| * descendants of the given roots |
| */ |
| private boolean isEditingDescendantOf(IEditorPart part) { |
| IFile file = ResourceUtil.getFile(part.getEditorInput()); |
| if (file != null) { |
| return isDescendantOfRoots(file); |
| } |
| return false; |
| } |
| |
| } |