| /******************************************************************************* |
| * 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 |
| * |
| * Contributors: |
| * xored software, Inc. - Initial implementation |
| * xored software, Inc. - implement IHyperlink.getHyperlinkText() & getTypeLabel (Alex Panchenko) |
| *******************************************************************************/ |
| package org.eclipse.dltk.internal.ui.editor; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.dltk.core.ICodeAssist; |
| import org.eclipse.dltk.core.ICodeSelection; |
| import org.eclipse.dltk.core.IModelElement; |
| import org.eclipse.dltk.core.ISourceRange; |
| import org.eclipse.dltk.core.ModelException; |
| import org.eclipse.dltk.internal.ui.DelegatedOpen; |
| import org.eclipse.dltk.internal.ui.OpenDelegateManager; |
| import org.eclipse.dltk.internal.ui.text.ScriptWordFinder; |
| import org.eclipse.dltk.ui.IOpenDelegate; |
| import org.eclipse.dltk.ui.actions.OpenAction; |
| import org.eclipse.dltk.ui.infoviews.ModelElementArray; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.jface.text.ITextViewer; |
| import org.eclipse.jface.text.Region; |
| import org.eclipse.jface.text.hyperlink.IHyperlink; |
| import org.eclipse.jface.text.hyperlink.IHyperlinkDetector; |
| import org.eclipse.jface.text.hyperlink.IHyperlinkDetectorExtension; |
| import org.eclipse.ui.texteditor.ITextEditor; |
| |
| /** |
| * Script element hyperlink detector. |
| */ |
| public class ModelElementHyperlinkDetector |
| implements IHyperlinkDetector, IHyperlinkDetectorExtension { |
| |
| private ITextEditor fTextEditor; |
| |
| /** |
| * Creates a new Script element hyperlink detector. |
| * |
| * @param editor |
| * the editor in which to detect the hyperlink |
| */ |
| public ModelElementHyperlinkDetector(ITextEditor editor) { |
| Assert.isNotNull(editor); |
| fTextEditor = editor; |
| } |
| |
| @Override |
| public IHyperlink[] detectHyperlinks(ITextViewer textViewer, IRegion region, |
| boolean canShowMultipleHyperlinks) { |
| if (region == null || !(fTextEditor instanceof ScriptEditor)) |
| return null; |
| |
| IAction action = fTextEditor.getAction("OpenEditor"); //$NON-NLS-1$ |
| if (action == null || !(action instanceof OpenAction)) |
| return null; |
| final OpenAction openAction = (OpenAction) action; |
| |
| int offset = region.getOffset(); |
| |
| IModelElement input = EditorUtility |
| .getEditorInputModelElement(fTextEditor, false); |
| if (input == null) |
| return null; |
| |
| try { |
| IDocument document = fTextEditor.getDocumentProvider() |
| .getDocument(fTextEditor.getEditorInput()); |
| IRegion wordRegion = ScriptWordFinder.findWord(document, offset); |
| if (wordRegion == null || wordRegion.getLength() == 0) |
| return null; |
| |
| final ICodeSelection selection = ((ICodeAssist) input) |
| .codeSelectAll(wordRegion.getOffset(), |
| wordRegion.getLength()); |
| if (selection == null) { |
| return null; |
| } |
| final List<Object> elements = new ArrayList<>(selection.size()); |
| for (Object element : selection) { |
| if (element instanceof IModelElement) { |
| elements.add(element); |
| } else { |
| final IOpenDelegate adapter = OpenDelegateManager |
| .findFor(element); |
| if (adapter != null) { |
| elements.add(new DelegatedOpen(adapter, element)); |
| } else { |
| continue; |
| } |
| } |
| } |
| if (!elements.isEmpty()) { |
| final IHyperlink link; |
| if (elements.size() == 1) { |
| final ISourceRange elementRange = selection |
| .rangeOf(elements.get(0)); |
| if (elementRange != null) { |
| wordRegion = new Region(elementRange.getOffset(), |
| elementRange.getLength()); |
| } |
| link = new ModelElementHyperlink(wordRegion, |
| elements.get(0), openAction); |
| } else { |
| link = new ModelElementHyperlink(wordRegion, |
| new ModelElementArray(elements), openAction); |
| } |
| return new IHyperlink[] { link }; |
| } |
| } catch (ModelException e) { |
| return null; |
| } |
| |
| return null; |
| } |
| |
| @Override |
| public void dispose() { |
| this.fTextEditor = null; |
| } |
| } |