| /** | |
| * <copyright> | |
| * | |
| * Copyright (c) 2016 itemis and others. | |
| * All rights reserved. This program and the accompanying materials | |
| * are made available under the terms of the Eclipse Public License v2.0 | |
| * which accompanies this distribution, and is available at | |
| * https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.html | |
| * | |
| * Contributors: | |
| * itemis - Initial API and implementation | |
| * itemis - [501109] The tree viewer state restoration upon Eclipse startup and viewer refreshed still running in cases where it is not needed | |
| * | |
| * </copyright> | |
| */ | |
| package org.eclipse.sphinx.emf.explorer.refresh; | |
| import org.eclipse.core.resources.IResource; | |
| import org.eclipse.jface.viewers.StructuredViewer; | |
| import org.eclipse.sphinx.emf.explorer.IModelCommonContentProvider; | |
| public class WorkspaceResourceRefreshStrategy extends AbstractRefreshStrategy<IResource> implements Runnable { | |
| private static final int MAX_INDIVIDUAL_WORKSPACE_RESOURCE_REFRESHES = 20; | |
| public WorkspaceResourceRefreshStrategy(IModelCommonContentProvider contentProvider, boolean preserveTreeViewerState) { | |
| super(contentProvider, preserveTreeViewerState); | |
| } | |
| @Override | |
| protected boolean shouldPerformSelectiveRefresh() { | |
| return getTreeElementsToRefresh().size() < MAX_INDIVIDUAL_WORKSPACE_RESOURCE_REFRESHES; | |
| } | |
| @Override | |
| protected void performSelectiveRefresh(StructuredViewer viewer) { | |
| for (IResource workspaceResource : getTreeElementsToRefresh()) { | |
| if (workspaceResource != null && workspaceResource.isAccessible()) { | |
| if (contentProvider.isTriggerPoint(workspaceResource)) { | |
| viewer.refresh(workspaceResource, true); | |
| } | |
| } | |
| } | |
| } | |
| } |