| /******************************************************************************* |
| * Copyright (c) 2006 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.pde.internal.ui.editor.build; |
| |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.jface.text.*; |
| import org.eclipse.jface.text.hyperlink.IHyperlink; |
| import org.eclipse.jface.text.hyperlink.IHyperlinkDetector; |
| import org.eclipse.pde.core.build.IBuildEntry; |
| import org.eclipse.pde.internal.core.text.IDocumentRange; |
| import org.eclipse.pde.internal.core.text.IEditingModel; |
| import org.eclipse.pde.internal.core.text.build.BuildEntry; |
| import org.eclipse.pde.internal.ui.editor.PDESourcePage; |
| import org.eclipse.pde.internal.ui.editor.text.ResourceHyperlink; |
| |
| public class BuildHyperlinkDetector implements IHyperlinkDetector { |
| |
| private PDESourcePage fSourcePage; |
| |
| /** |
| * @param editor the editor in which to detect the hyperlink |
| */ |
| public BuildHyperlinkDetector(PDESourcePage page) { |
| fSourcePage = page; |
| } |
| |
| /* |
| * @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 (region == null) |
| return null; |
| |
| IDocumentRange element = fSourcePage.getRangeElement(region.getOffset(), true); |
| if (!(element instanceof BuildEntry)) |
| return null; |
| |
| BuildEntry entry = (BuildEntry) element; |
| if (!entry.getModel().isEditable() || !(entry.getModel() instanceof IEditingModel)) |
| return null; |
| |
| String name = entry.getName(); |
| // as of now only scanning bin.includes, src.includes and source.* entries |
| if (!name.equals(IBuildEntry.BIN_INCLUDES) && !name.equals(IBuildEntry.SRC_INCLUDES) && !name.startsWith(IBuildEntry.JAR_PREFIX)) |
| return null; |
| |
| if (region.getOffset() <= entry.getOffset() + entry.getName().length()) |
| return null; |
| |
| return matchLinkFor(entry, region.getOffset()); |
| } |
| |
| private IHyperlink[] matchLinkFor(BuildEntry header, int mainOffset) { |
| try { |
| IDocument doc = ((IEditingModel) header.getModel()).getDocument(); |
| String value = doc.get(header.getOffset(), header.getLength()); |
| int offset = mainOffset - header.getOffset(); |
| if (skipChar(value.charAt(offset))) |
| return null; |
| |
| // all chars up to the offset |
| String pre = value.substring(0, offset); |
| char[] preChars = pre.toCharArray(); |
| int start = pre.lastIndexOf(','); |
| if (start == -1) |
| // we are looking at 1st entry, skip to ':' |
| if ((start = value.indexOf('=')) == 0) |
| return null; |
| |
| // skip to 1st non whitespace char |
| while (++start < preChars.length) |
| if (!skipChar(preChars[start])) |
| break; |
| |
| // all chars past to ofset |
| String post = value.substring(offset); |
| char[] postChars = post.toCharArray(); |
| int end = post.indexOf(','); |
| if (end == -1) |
| // we are looking at last entry, skip to end |
| end = post.length(); |
| |
| // move back to 1st non whitespace char |
| while (--end < postChars.length) |
| if (!skipChar(postChars[end])) |
| break; |
| end += 1; |
| |
| String match = value.substring(start, preChars.length + end); |
| if (match.length() == 0 || match.indexOf('*') != -1) |
| return null; |
| |
| IResource res = header.getModel().getUnderlyingResource(); |
| if (res == null) |
| return null; |
| res = res.getProject().findMember(match); |
| return new IHyperlink[] {new ResourceHyperlink(new Region(header.getOffset() + start, match.length()), match, res)}; |
| |
| } catch (BadLocationException e) { |
| } |
| return null; |
| } |
| |
| private boolean skipChar(char c) { |
| return Character.isWhitespace(c) || c == '\\' || c == ','; |
| } |
| |
| } |