/**
* This file Copyright (c) 2005-2008 Aptana, Inc. This program is
* dual-licensed under both the Aptana Public License and the GNU General
* Public license. You may elect to use one or the other of these licenses.
*
* This program is distributed in the hope that it will be useful, but
* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
* NONINFRINGEMENT. Redistribution, except as permitted by whichever of
* the GPL or APL you select, is prohibited.
*
* 1. For the GPL license (GPL), you can redistribute and/or modify this
* program under the terms of the GNU General Public License,
* Version 3, as published by the Free Software Foundation. You should
* have received a copy of the GNU General Public License, Version 3 along
* with this program; if not, write to the Free Software Foundation, Inc., 51
* Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Aptana provides a special exception to allow redistribution of this file
* with certain other free and open source software ("FOSS") code and certain additional terms
* pursuant to Section 7 of the GPL. You may view the exception and these
* terms on the web at http://www.aptana.com/legal/gpl/.
*
* 2. For the Aptana Public License (APL), this program and the
* accompanying materials are made available under the terms of the APL
* v1.0 which accompanies this distribution, and is available at
* http://www.aptana.com/legal/apl/.
*
* You may view the GPL, Aptana's exception and additional terms, and the
* APL in the file titled license.html at the root of the corresponding
* plugin containing this source file.
*
* Any modifications to this file must keep this entire header intact.
*/
package com.aptana.ide.editors.unified.hyperlinks;
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 com.aptana.ide.editors.managers.EnvironmentManager;
import com.aptana.ide.editors.unified.IFileLanguageService;
import com.aptana.ide.lexer.Lexeme;
import com.aptana.ide.lexer.LexemeList;
import com.aptana.ide.parsing.ICodeLocation;
import com.aptana.ide.parsing.IOffsetMapper;
import com.aptana.ide.parsing.IRuntimeEnvironment;
/**
* @author Kevin Sawicki (ksawicki@aptana.com)
*/
public class UnifiedHyperlinkDetector implements IHyperlinkDetector
{
private static final IHyperlink[] EMPTY = null;
private IFileLanguageService service;
/**
* Creates a new hyperlink detector
*
* @param service -
* file language service
*/
public UnifiedHyperlinkDetector(IFileLanguageService service)
{
this.service = service;
}
/**
* @see org.eclipse.jface.text.hyperlink.IHyperlinkDetector#detectHyperlinks(org.eclipse.jface.text.ITextViewer,
* org.eclipse.jface.text.IRegion, boolean)
*/
public IHyperlink[] detectHyperlinks(ITextViewer textViewer, IRegion region, boolean canShowMultipleHyperlinks)
{
if (this.service == null)
{
return EMPTY;
}
IOffsetMapper mapper = this.service.getOffsetMapper();
if (mapper == null)
{
return EMPTY;
}
LexemeList lxList = mapper.getLexemeList();
if (lxList == null)
{
return EMPTY;
}
Lexeme lx = lxList.getLexemeFromOffset(region.getOffset());
if (lx == null)
{
return EMPTY;
}
String mimetype = lx.getLanguage();
IRuntimeEnvironment env = EnvironmentManager.getEnvironment(mimetype);
IFileLanguageService langService = this.service.getFileContext().getLanguageService(mimetype);
if (langService == null || env == null)
{
return EMPTY;
}
IOffsetMapper langMapper = langService.getOffsetMapper();
if (langMapper == null)
{
return EMPTY;
}
ICodeLocation loc = langMapper.findTarget(lx);
if (loc == null)
{
return EMPTY;
}
IRegion linkRegion = new Region(lx.offset, lx.length);
UnifiedSourceHyperlink link = new UnifiedSourceHyperlink(this.service, lx, linkRegion, lx.getText());
return new IHyperlink[] { link };
}
}