| /******************************************************************************* |
| * Copyright (c) 2008 Chase Technology Ltd - http://www.chasetechnology.co.uk |
| * 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: |
| * Doug Satchwell (Chase Technology Ltd) - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.wst.xsl.ui.internal.handlers; |
| |
| import org.eclipse.core.commands.AbstractHandler; |
| import org.eclipse.core.commands.ExecutionEvent; |
| import org.eclipse.core.commands.ExecutionException; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.jface.text.ITextSelection; |
| import org.eclipse.jface.text.Region; |
| import org.eclipse.jface.text.TextSelection; |
| import org.eclipse.jface.text.hyperlink.IHyperlink; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.ISelectionProvider; |
| import org.eclipse.ui.IEditorPart; |
| import org.eclipse.ui.handlers.HandlerUtil; |
| import org.eclipse.ui.texteditor.ITextEditor; |
| import org.eclipse.wst.xsl.ui.internal.editor.XSLHyperlinkDetector; |
| |
| public class OpenDeclarationHandler extends AbstractHandler |
| { |
| private XSLHyperlinkDetector detector = new XSLHyperlinkDetector(); |
| |
| public Object execute(ExecutionEvent event) throws ExecutionException |
| { |
| IEditorPart editor = HandlerUtil.getActiveEditor(event); |
| |
| ITextEditor textEditor = null; |
| if (editor instanceof ITextEditor) |
| textEditor = (ITextEditor) editor; |
| else |
| { |
| Object o = editor.getAdapter(ITextEditor.class); |
| if (o != null) |
| textEditor = (ITextEditor) o; |
| } |
| if (textEditor != null) |
| { |
| IDocument document = textEditor.getDocumentProvider().getDocument(textEditor.getEditorInput()); |
| if (document != null) |
| { |
| // get current text selection |
| ITextSelection textSelection = getCurrentSelection(textEditor); |
| if (textSelection.isEmpty()) |
| { |
| return null; |
| } |
| int offset = textSelection.getOffset(); |
| if (offset == -1) |
| return null; |
| IRegion region = new Region(offset, 0); |
| IHyperlink[] links = detector.detectHyperlinks(document, region, true); |
| if (links != null && links.length > 0) |
| { |
| IHyperlink link = links[0]; |
| link.open(); |
| } |
| } |
| } |
| |
| return null; |
| } |
| |
| private ITextSelection getCurrentSelection(ITextEditor textEditor) |
| { |
| ISelectionProvider provider = textEditor.getSelectionProvider(); |
| if (provider != null) |
| { |
| ISelection selection = provider.getSelection(); |
| if (selection instanceof ITextSelection) |
| { |
| return (ITextSelection) selection; |
| } |
| } |
| return TextSelection.emptySelection(); |
| } |
| |
| } |