| /******************************************************************************* |
| * Copyright (c) 2000, 2017 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| *******************************************************************************/ |
| package org.eclipse.dltk.internal.ui.typehierarchy; |
| |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.dltk.core.IMember; |
| import org.eclipse.dltk.core.IType; |
| import org.eclipse.dltk.ui.ScriptElementLabels; |
| import org.eclipse.dltk.ui.viewsupport.ProblemTreeViewer; |
| import org.eclipse.dltk.ui.viewsupport.StyledDecoratingModelLabelProvider; |
| import org.eclipse.jface.action.IMenuListener; |
| import org.eclipse.jface.action.IMenuManager; |
| import org.eclipse.jface.action.MenuManager; |
| import org.eclipse.jface.preference.IPreferenceStore; |
| import org.eclipse.jface.viewers.IContentProvider; |
| import org.eclipse.jface.viewers.ViewerFilter; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Menu; |
| import org.eclipse.swt.widgets.Tree; |
| import org.eclipse.ui.IWorkbenchPart; |
| import org.eclipse.ui.IWorkbenchPartSite; |
| |
| public abstract class TypeHierarchyViewer extends ProblemTreeViewer { |
| |
| private HierarchyOpenAction fOpen; |
| private HierarchyLabelProvider fLabelProvider; |
| |
| public TypeHierarchyViewer(Composite parent, |
| IContentProvider contentProvider, TypeHierarchyLifeCycle lifeCycle, |
| IWorkbenchPart part, IPreferenceStore store) { |
| super(new Tree(parent, SWT.SINGLE)); |
| |
| fLabelProvider = new HierarchyLabelProvider(lifeCycle, store); |
| |
| setLabelProvider( |
| new StyledDecoratingModelLabelProvider(fLabelProvider, true)); |
| setUseHashlookup(true); |
| |
| setContentProvider(contentProvider); |
| setComparator(new HierarchyViewerSorter(lifeCycle)); |
| |
| fOpen = new HierarchyOpenAction(part.getSite()); |
| addOpenListener(event -> fOpen.run()); |
| |
| // JavaUIHelp.setHelp(this, IJavaHelpContextIds.TYPE_HIERARCHY_VIEW); |
| } |
| |
| public void setQualifiedTypeName(boolean on) { |
| if (on) { |
| fLabelProvider.setTextFlags(fLabelProvider.getTextFlags() |
| | ScriptElementLabels.T_POST_QUALIFIED); |
| } else { |
| fLabelProvider.setTextFlags(fLabelProvider.getTextFlags() |
| & ~ScriptElementLabels.T_POST_QUALIFIED); |
| } |
| refresh(); |
| } |
| |
| /** |
| * Attaches a contextmenu listener to the tree |
| */ |
| public void initContextMenu(IMenuListener menuListener, String popupId, |
| IWorkbenchPartSite viewSite) { |
| MenuManager menuMgr = new MenuManager(); |
| menuMgr.setRemoveAllWhenShown(true); |
| menuMgr.addMenuListener(menuListener); |
| Menu menu = menuMgr.createContextMenu(getTree()); |
| getTree().setMenu(menu); |
| viewSite.registerContextMenu(popupId, menuMgr, this); |
| } |
| |
| /** |
| * Fills up the context menu with items for the hierarchy viewer Should be |
| * called by the creator of the context menu |
| */ |
| public void contributeToContextMenu(IMenuManager menu) { |
| } |
| |
| /** |
| * Set the member filter |
| */ |
| public void setMemberFilter(IMember[] memberFilter) { |
| TypeHierarchyContentProvider contentProvider = getHierarchyContentProvider(); |
| if (contentProvider != null) { |
| contentProvider.setMemberFilter(memberFilter); |
| } |
| } |
| |
| /** |
| * Returns if method filtering is enabled. |
| */ |
| public boolean isMethodFiltering() { |
| TypeHierarchyContentProvider contentProvider = getHierarchyContentProvider(); |
| if (contentProvider != null) { |
| return contentProvider.getMemberFilter() != null; |
| } |
| return false; |
| } |
| |
| public void setWorkingSetFilter(ViewerFilter filter) { |
| fLabelProvider.setFilter(filter); |
| TypeHierarchyContentProvider contentProvider = getHierarchyContentProvider(); |
| if (contentProvider != null) { |
| contentProvider.setWorkingSetFilter(filter); |
| } |
| } |
| |
| /** |
| * Returns true if the hierarchy contains elements. Returns one of them With |
| * member filtering it is possible that no elements are visible |
| */ |
| public Object containsElements() { |
| TypeHierarchyContentProvider contentProvider = getHierarchyContentProvider(); |
| if (contentProvider != null) { |
| Object[] elements = contentProvider.getElements(null); |
| if (elements.length > 0) { |
| return elements[0]; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Returns true if the hierarchy contains elements. Returns one of them With |
| * member filtering it is possible that no elements are visible |
| */ |
| public IType getTreeRootType() { |
| TypeHierarchyContentProvider contentProvider = getHierarchyContentProvider(); |
| if (contentProvider != null) { |
| Object[] elements = contentProvider.getElements(null); |
| if (elements.length > 0 && elements[0] instanceof IType) { |
| return (IType) elements[0]; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Returns true if the hierarchy contains element the element. |
| */ |
| public boolean isElementShown(Object element) { |
| return findItem(element) != null; |
| } |
| |
| /** |
| * Updates the content of this viewer: refresh and expanding the tree in the |
| * way wanted. |
| */ |
| public abstract void updateContent(boolean doExpand); |
| |
| /** |
| * Returns the title for the current view |
| */ |
| public abstract String getTitle(); |
| |
| @Override |
| public void setContentProvider(IContentProvider cp) { |
| Assert.isTrue(cp instanceof TypeHierarchyContentProvider); |
| super.setContentProvider(cp); |
| } |
| |
| protected TypeHierarchyContentProvider getHierarchyContentProvider() { |
| return (TypeHierarchyContentProvider) getContentProvider(); |
| } |
| |
| } |