| /******************************************************************************* |
| * Copyright (c) 2000, 2011 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 |
| * |
| * Contributors: |
| * Jesper Kamstrup Linnet (eclipse@kamstrup-linnet.dk) - initial API and implementation |
| * (report 36180: Callers/Callees view) |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.ui.callhierarchy; |
| |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.KeyListener; |
| import org.eclipse.swt.events.TreeEvent; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Menu; |
| import org.eclipse.swt.widgets.Tree; |
| |
| import org.eclipse.jface.action.IMenuListener; |
| import org.eclipse.jface.action.MenuManager; |
| import org.eclipse.jface.viewers.ISelectionProvider; |
| import org.eclipse.jface.viewers.StructuredSelection; |
| import org.eclipse.jface.viewers.TreeViewer; |
| |
| import org.eclipse.ui.IWorkbenchPartSite; |
| |
| import org.eclipse.jdt.internal.corext.callhierarchy.CallerMethodWrapper; |
| import org.eclipse.jdt.internal.corext.callhierarchy.MethodWrapper; |
| |
| import org.eclipse.jdt.internal.ui.viewsupport.ColoringLabelProvider; |
| |
| |
| class CallHierarchyViewer extends TreeViewer { |
| |
| private final CallHierarchyViewPart fPart; |
| private final CallHierarchyContentProvider fContentProvider; |
| |
| private CallerMethodWrapper fConstructorToExpand; |
| |
| private TreeRoot fDummyRoot; |
| |
| /** |
| * @param parent the parent composite |
| * @param part the call hierarchy view part |
| */ |
| CallHierarchyViewer(Composite parent, CallHierarchyViewPart part) { |
| super(new Tree(parent, SWT.MULTI)); |
| |
| fPart = part; |
| |
| getControl().setLayoutData(new GridData(GridData.FILL_BOTH)); |
| setUseHashlookup(true); |
| setAutoExpandLevel(2); |
| fContentProvider = new CallHierarchyContentProvider(fPart); |
| setContentProvider(fContentProvider); |
| setLabelProvider(new ColoringLabelProvider(new CallHierarchyLabelProvider())); |
| |
| |
| clearViewer(); |
| } |
| |
| void setMethodWrappers(MethodWrapper[] wrappers) { |
| setInput(getTreeRoot(wrappers)); |
| |
| setFocus(); |
| if (wrappers != null && wrappers.length > 0) |
| setSelection(new StructuredSelection(wrappers[0]), true); |
| expandConstructorNode(); |
| } |
| |
| CallHierarchyViewPart getPart() { |
| return fPart; |
| } |
| |
| /** |
| * |
| */ |
| void setFocus() { |
| getControl().setFocus(); |
| } |
| |
| boolean isInFocus() { |
| return getControl().isFocusControl(); |
| } |
| |
| void addKeyListener(KeyListener keyListener) { |
| getControl().addKeyListener(keyListener); |
| } |
| |
| /** |
| * Wraps the roots of a MethodWrapper tree in a dummy root in order to show |
| * it in the tree. |
| * |
| * @param roots The visible roots of the MethodWrapper tree. |
| * @return A new TreeRoot which is a dummy root above the specified root. |
| */ |
| private TreeRoot getTreeRoot(MethodWrapper[] roots) { |
| return getTreeRoot(roots, false); |
| } |
| |
| |
| /** |
| * Wraps the roots of a MethodWrapper tree in a dummy root in order to show it in the tree. |
| * |
| * @param roots The visible roots of the MethodWrapper tree. |
| * @param addRoots <code>true</code> if the roots need to be added to the existing roots, |
| * <code>false</code> otherwise |
| * @return a new TreeRoot which is a dummy root above the specified root |
| * @since 3.7 |
| */ |
| TreeRoot getTreeRoot(MethodWrapper[] roots, boolean addRoots) { |
| if (fDummyRoot == null || !addRoots) |
| fDummyRoot= new TreeRoot(roots); |
| else |
| fDummyRoot.addRoots(roots); |
| |
| return fDummyRoot; |
| } |
| |
| /** |
| * Attaches a context menu listener to the tree |
| * @param menuListener the menu listener |
| * @param viewSite the view site |
| * @param selectionProvider the selection provider |
| */ |
| void initContextMenu(IMenuListener menuListener, IWorkbenchPartSite viewSite, ISelectionProvider selectionProvider) { |
| MenuManager menuMgr= new MenuManager(); |
| menuMgr.setRemoveAllWhenShown(true); |
| menuMgr.addMenuListener(menuListener); |
| Menu menu= menuMgr.createContextMenu(getTree()); |
| getTree().setMenu(menu); |
| viewSite.registerContextMenu(menuMgr, selectionProvider); |
| } |
| |
| void clearViewer() { |
| setInput(TreeRoot.EMPTY_ROOT); |
| fDummyRoot= null; |
| } |
| |
| void cancelJobs() { |
| if (fPart == null) |
| return; |
| fContentProvider.cancelJobs(fPart.getCurrentMethodWrappers()); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @since 3.7 |
| */ |
| @Override |
| protected Object[] getSortedChildren(Object parentElementOrTreePath) { |
| Object[] sortedChildren= super.getSortedChildren(parentElementOrTreePath); |
| if (parentElementOrTreePath instanceof CallerMethodWrapper) { |
| CallerMethodWrapper parentWrapper= (CallerMethodWrapper)parentElementOrTreePath; |
| if (parentWrapper.getExpandWithConstructors() && sortedChildren.length == 2 && sortedChildren[0] instanceof CallerMethodWrapper) { |
| setConstructorToExpand((CallerMethodWrapper)sortedChildren[0]); |
| } |
| } |
| return sortedChildren; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @since 3.7 |
| */ |
| @Override |
| protected void handleTreeExpand(TreeEvent event) { |
| super.handleTreeExpand(event); |
| expandConstructorNode(); |
| } |
| |
| /** |
| * Sets the constructor node. |
| * |
| * @param wrapper the constructor caller method wrapper |
| * @since 3.7 |
| */ |
| private void setConstructorToExpand(CallerMethodWrapper wrapper) { |
| fConstructorToExpand= wrapper; |
| |
| } |
| |
| /** |
| * Expands the constructor node when in expand with constructors mode. |
| * |
| * @since 3.7 |
| */ |
| void expandConstructorNode() { |
| if (fConstructorToExpand != null) { |
| setExpandedState(fConstructorToExpand, true); |
| fConstructorToExpand= null; |
| } |
| } |
| } |