| /******************************************************************************* |
| * Copyright (c) 2000, 2008 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.wst.jsdt.ui.actions; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.jface.dialogs.ErrorDialog; |
| import org.eclipse.jface.text.ITextSelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.ui.IWorkbenchSite; |
| import org.eclipse.ui.PlatformUI; |
| import org.eclipse.wst.jsdt.core.IClassFile; |
| import org.eclipse.wst.jsdt.core.IImportDeclaration; |
| import org.eclipse.wst.jsdt.core.IJavaScriptElement; |
| import org.eclipse.wst.jsdt.core.IJavaScriptUnit; |
| import org.eclipse.wst.jsdt.core.IPackageFragment; |
| import org.eclipse.wst.jsdt.core.IType; |
| import org.eclipse.wst.jsdt.core.JavaScriptModelException; |
| import org.eclipse.wst.jsdt.core.Signature; |
| import org.eclipse.wst.jsdt.internal.corext.util.JavaModelUtil; |
| import org.eclipse.wst.jsdt.internal.ui.IJavaHelpContextIds; |
| import org.eclipse.wst.jsdt.internal.ui.IJavaStatusConstants; |
| import org.eclipse.wst.jsdt.internal.ui.JavaScriptPlugin; |
| import org.eclipse.wst.jsdt.internal.ui.actions.ActionMessages; |
| import org.eclipse.wst.jsdt.internal.ui.actions.ActionUtil; |
| import org.eclipse.wst.jsdt.internal.ui.actions.SelectionConverter; |
| import org.eclipse.wst.jsdt.internal.ui.browsing.LogicalPackage; |
| import org.eclipse.wst.jsdt.internal.ui.javaeditor.JavaEditor; |
| import org.eclipse.wst.jsdt.internal.ui.util.ExceptionHandler; |
| import org.eclipse.wst.jsdt.internal.ui.util.OpenTypeHierarchyUtil; |
| |
| /** |
| * This action opens a type hierarchy on the selected type. |
| * <p> |
| * The action is applicable to selections containing elements of type |
| * <code>IType</code>. |
| * |
| * <p> |
| * This class may be instantiated; it is not intended to be subclassed. |
| * </p> |
| * |
| * |
| * Provisional API: This class/interface is part of an interim API that is still under development and expected to |
| * change significantly before reaching stability. It is being made available at this early stage to solicit feedback |
| * from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken |
| * (repeatedly) as the API evolves. |
| */ |
| public class OpenTypeHierarchyAction extends SelectionDispatchAction { |
| |
| private JavaEditor fEditor; |
| |
| /** |
| * Creates a new <code>OpenTypeHierarchyAction</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 OpenTypeHierarchyAction(IWorkbenchSite site) { |
| super(site); |
| setText(ActionMessages.OpenTypeHierarchyAction_label); |
| setToolTipText(ActionMessages.OpenTypeHierarchyAction_tooltip); |
| setDescription(ActionMessages.OpenTypeHierarchyAction_description); |
| PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.OPEN_TYPE_HIERARCHY_ACTION); |
| } |
| |
| /** |
| * Note: This constructor is for internal use only. Clients should not call this constructor. |
| * @param editor the Java editor |
| */ |
| public OpenTypeHierarchyAction(JavaEditor editor) { |
| this(editor.getEditorSite()); |
| fEditor= editor; |
| setEnabled(SelectionConverter.canOperateOn(fEditor)); |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on SelectionDispatchAction. |
| */ |
| public void selectionChanged(ITextSelection selection) { |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on SelectionDispatchAction. |
| */ |
| public void selectionChanged(IStructuredSelection selection) { |
| setEnabled(isEnabled(selection)); |
| } |
| |
| private boolean isEnabled(IStructuredSelection selection) { |
| if (selection.size() != 1) |
| return false; |
| Object input= selection.getFirstElement(); |
| |
| |
| if (input instanceof LogicalPackage) |
| return true; |
| |
| if (!(input instanceof IJavaScriptElement)) |
| return false; |
| switch (((IJavaScriptElement)input).getElementType()) { |
| case IJavaScriptElement.INITIALIZER: |
| case IJavaScriptElement.METHOD: |
| case IJavaScriptElement.FIELD: |
| case IJavaScriptElement.TYPE: |
| return true; |
| case IJavaScriptElement.PACKAGE_FRAGMENT_ROOT: |
| case IJavaScriptElement.JAVASCRIPT_PROJECT: |
| case IJavaScriptElement.PACKAGE_FRAGMENT: |
| case IJavaScriptElement.PACKAGE_DECLARATION: |
| case IJavaScriptElement.IMPORT_DECLARATION: |
| case IJavaScriptElement.CLASS_FILE: |
| case IJavaScriptElement.JAVASCRIPT_UNIT: |
| return true; |
| case IJavaScriptElement.LOCAL_VARIABLE: |
| default: |
| return false; |
| } |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on SelectionDispatchAction. |
| */ |
| public void run(ITextSelection selection) { |
| IJavaScriptElement input= SelectionConverter.getInput(fEditor); |
| if (!ActionUtil.isProcessable(getShell(), input)) |
| return; |
| |
| try { |
| IJavaScriptElement[] elements= SelectionConverter.codeResolveOrInputForked(fEditor); |
| if (elements == null) |
| return; |
| List candidates= new ArrayList(elements.length); |
| for (int i= 0; i < elements.length; i++) { |
| IJavaScriptElement[] resolvedElements= OpenTypeHierarchyUtil.getCandidates(elements[i]); |
| if (resolvedElements != null) |
| candidates.addAll(Arrays.asList(resolvedElements)); |
| } |
| run((IJavaScriptElement[])candidates.toArray(new IJavaScriptElement[candidates.size()])); |
| } catch (InvocationTargetException e) { |
| ExceptionHandler.handle(e, getShell(), getDialogTitle(), ActionMessages.SelectionConverter_codeResolve_failed); |
| } catch (InterruptedException e) { |
| // cancelled |
| } |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on SelectionDispatchAction. |
| */ |
| public void run(IStructuredSelection selection) { |
| if (selection.size() != 1) |
| return; |
| Object input= selection.getFirstElement(); |
| |
| if (input instanceof LogicalPackage) { |
| IPackageFragment[] fragments= ((LogicalPackage)input).getFragments(); |
| if (fragments.length == 0) |
| return; |
| input= fragments[0]; |
| } |
| |
| if (!(input instanceof IJavaScriptElement)) { |
| IStatus status= createStatus(ActionMessages.OpenTypeHierarchyAction_messages_no_java_element); |
| ErrorDialog.openError(getShell(), getDialogTitle(), ActionMessages.OpenTypeHierarchyAction_messages_title, status); |
| return; |
| } |
| IJavaScriptElement element= (IJavaScriptElement) input; |
| if (!ActionUtil.isProcessable(getShell(), element)) |
| return; |
| |
| List result= new ArrayList(1); |
| IStatus status= compileCandidates(result, element); |
| if (status.isOK()) { |
| run((IJavaScriptElement[]) result.toArray(new IJavaScriptElement[result.size()])); |
| } else { |
| ErrorDialog.openError(getShell(), getDialogTitle(), ActionMessages.OpenTypeHierarchyAction_messages_title, status); |
| } |
| } |
| |
| /* |
| * No Javadoc since the method isn't meant to be public but is |
| * since the beginning |
| */ |
| public void run(IJavaScriptElement[] elements) { |
| if (elements.length == 0) { |
| getShell().getDisplay().beep(); |
| return; |
| } |
| OpenTypeHierarchyUtil.open(elements, getSite().getWorkbenchWindow()); |
| } |
| |
| private static String getDialogTitle() { |
| return ActionMessages.OpenTypeHierarchyAction_dialog_title; |
| } |
| |
| private static IStatus compileCandidates(List result, IJavaScriptElement elem) { |
| IStatus ok= new Status(IStatus.OK, JavaScriptPlugin.getPluginId(), 0, "", null); //$NON-NLS-1$ |
| try { |
| switch (elem.getElementType()) { |
| case IJavaScriptElement.INITIALIZER: |
| case IJavaScriptElement.METHOD: |
| case IJavaScriptElement.FIELD: |
| case IJavaScriptElement.TYPE: |
| case IJavaScriptElement.PACKAGE_FRAGMENT_ROOT: |
| case IJavaScriptElement.JAVASCRIPT_PROJECT: |
| result.add(elem); |
| return ok; |
| case IJavaScriptElement.PACKAGE_FRAGMENT: |
| if (((IPackageFragment)elem).containsJavaResources()) { |
| result.add(elem); |
| return ok; |
| } |
| return createStatus(ActionMessages.OpenTypeHierarchyAction_messages_no_java_resources); |
| case IJavaScriptElement.PACKAGE_DECLARATION: |
| result.add(elem.getAncestor(IJavaScriptElement.PACKAGE_FRAGMENT)); |
| return ok; |
| case IJavaScriptElement.IMPORT_DECLARATION: |
| IImportDeclaration decl= (IImportDeclaration) elem; |
| if (decl.isOnDemand()) { |
| elem= JavaModelUtil.findTypeContainer(elem.getJavaScriptProject(), Signature.getQualifier(elem.getElementName())); |
| } else { |
| elem= elem.getJavaScriptProject().findType(elem.getElementName()); |
| } |
| if (elem != null) { |
| result.add(elem); |
| return ok; |
| } |
| return createStatus(ActionMessages.OpenTypeHierarchyAction_messages_unknown_import_decl); |
| case IJavaScriptElement.CLASS_FILE: |
| result.add(((IClassFile)elem).getType()); |
| return ok; |
| case IJavaScriptElement.JAVASCRIPT_UNIT: |
| IJavaScriptUnit cu= (IJavaScriptUnit)elem; |
| IType[] types= cu.getTypes(); |
| if (types.length > 0) { |
| result.addAll(Arrays.asList(types)); |
| return ok; |
| } |
| return createStatus(ActionMessages.OpenTypeHierarchyAction_messages_no_types); |
| } |
| } catch (JavaScriptModelException e) { |
| return e.getStatus(); |
| } |
| return createStatus(ActionMessages.OpenTypeHierarchyAction_messages_no_valid_java_element); |
| } |
| |
| private static IStatus createStatus(String message) { |
| return new Status(IStatus.INFO, JavaScriptPlugin.getPluginId(), IJavaStatusConstants.INTERNAL_ERROR, message, null); |
| } |
| } |