| /******************************************************************************* |
| * 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 java.lang.reflect.InvocationTargetException; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| |
| import org.eclipse.jface.text.ITextSelection; |
| |
| import org.eclipse.ui.IWorkbenchSite; |
| import org.eclipse.ui.PlatformUI; |
| |
| import org.eclipse.jdt.core.IField; |
| import org.eclipse.jdt.core.IInitializer; |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IMember; |
| import org.eclipse.jdt.core.IMethod; |
| import org.eclipse.jdt.core.ITypeRoot; |
| import org.eclipse.jdt.core.JavaModelException; |
| |
| import org.eclipse.jdt.internal.corext.callhierarchy.CallHierarchy; |
| |
| import org.eclipse.jdt.ui.actions.SelectionDispatchAction; |
| |
| import org.eclipse.jdt.internal.ui.IJavaHelpContextIds; |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| import org.eclipse.jdt.internal.ui.actions.ActionMessages; |
| import org.eclipse.jdt.internal.ui.actions.ActionUtil; |
| import org.eclipse.jdt.internal.ui.actions.SelectionConverter; |
| import org.eclipse.jdt.internal.ui.javaeditor.JavaEditor; |
| import org.eclipse.jdt.internal.ui.util.ExceptionHandler; |
| |
| /** |
| * This action opens a call hierarchy on the selected members. |
| */ |
| public class OpenCallHierarchyAction extends SelectionDispatchAction { |
| |
| private JavaEditor fEditor; |
| |
| /** |
| * Creates a new <code>OpenCallHierarchyAction</code>. The action requires |
| * that the selection provided by the site's selection provider is of type |
| * <code>org.eclipse.jface.viewers.IStructuredSelection</code>. |
| * |
| * @param site the site providing context information for this action |
| */ |
| public OpenCallHierarchyAction(IWorkbenchSite site) { |
| super(site); |
| setText(CallHierarchyMessages.OpenCallHierarchyAction_label); |
| setToolTipText(CallHierarchyMessages.OpenCallHierarchyAction_tooltip); |
| setDescription(CallHierarchyMessages.OpenCallHierarchyAction_description); |
| PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.CALL_HIERARCHY_OPEN_ACTION); |
| } |
| |
| /** |
| * Note: This constructor is for internal use only. Clients should not call this constructor. |
| * @param editor internal |
| */ |
| public OpenCallHierarchyAction(JavaEditor editor) { |
| this(editor.getEditorSite()); |
| fEditor= editor; |
| setEnabled(SelectionConverter.canOperateOn(fEditor)); |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on SelectionDispatchAction. |
| */ |
| @Override |
| public void selectionChanged(ITextSelection selection) { |
| // Do nothing |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on SelectionDispatchAction. |
| */ |
| @Override |
| public void selectionChanged(IStructuredSelection selection) { |
| setEnabled(CallHierarchy.arePossibleInputElements(selection.toList())); |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on SelectionDispatchAction. |
| */ |
| @Override |
| public void run(ITextSelection selection) { |
| ITypeRoot input= SelectionConverter.getInput(fEditor); |
| if (!ActionUtil.isProcessable(getShell(), input)) |
| return; |
| |
| try { |
| IJavaElement[] elements= SelectionConverter.codeResolveOrInputForked(fEditor); |
| if (elements == null) |
| return; |
| List<IJavaElement> candidates= new ArrayList<IJavaElement>(elements.length); |
| for (int i= 0; i < elements.length; i++) { |
| IJavaElement element= elements[i]; |
| if (CallHierarchy.isPossibleInputElement(element)) { |
| candidates.add(element); |
| } |
| } |
| if (candidates.isEmpty()) { |
| IJavaElement enclosingMethod= getEnclosingMethod(input, selection); |
| if (enclosingMethod != null) { |
| candidates.add(enclosingMethod); |
| } |
| } |
| CallHierarchyUI.openSelectionDialog(candidates.toArray(new IMember[candidates.size()]), getSite().getWorkbenchWindow()); |
| |
| } catch (InvocationTargetException e) { |
| ExceptionHandler.handle(e, getShell(), |
| CallHierarchyMessages.OpenCallHierarchyAction_dialog_title, |
| ActionMessages.SelectionConverter_codeResolve_failed); |
| } catch (InterruptedException e) { |
| // cancelled |
| } |
| } |
| |
| private IJavaElement getEnclosingMethod(ITypeRoot input, ITextSelection selection) { |
| try { |
| IJavaElement enclosingElement= input.getElementAt(selection.getOffset()); |
| if (enclosingElement instanceof IMethod || enclosingElement instanceof IInitializer || enclosingElement instanceof IField) { |
| // opening on the enclosing type would be too confusing (since the type resolves to the constructors) |
| return enclosingElement; |
| } |
| } catch (JavaModelException e) { |
| JavaPlugin.log(e); |
| } |
| |
| return null; |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on SelectionDispatchAction. |
| */ |
| @Override |
| public void run(IStructuredSelection selection) { |
| List<?> elements= selection.toList(); |
| if (!CallHierarchy.arePossibleInputElements(elements)) { |
| elements= Collections.EMPTY_LIST; |
| } |
| |
| IMember[] members= elements.toArray(new IMember[elements.size()]); |
| if (!ActionUtil.areProcessable(getShell(), members)) |
| return; |
| |
| CallHierarchyUI.openView(members, getSite().getWorkbenchWindow()); |
| } |
| |
| } |