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Viewing changes to rpm/org.eclipse.linuxtools.rpm.ui.editor/src/org/eclipse/linuxtools/internal/rpm/ui/editor/hyperlink/SourcesFileHyperlinkDetector.java

  • Committer: Package Import Robot
  • Author(s): Jakub Adam
  • Date: 2012-06-29 12:07:30 UTC
  • Revision ID: package-import@ubuntu.com-20120629120730-bfri1xys1i71dpn6
Tags: upstream-1.0.0
Import upstream version 1.0.0

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rpm/org.eclipse.linuxtools.rpm.ui.editor/src/org/eclipse/linuxtools/internal/rpm/ui/editor/hyperlink/SourcesFileHyperlinkDetector.java
 
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/*******************************************************************************
 
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 * Copyright (c) 2007, 2010 Red Hat, Inc.
 
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 * All rights reserved. This program and the accompanying materials
 
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 * are made available under the terms of the Eclipse Public License v1.0
 
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 * which accompanies this distribution, and is available at
 
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 * http://www.eclipse.org/legal/epl-v10.html
 
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 *
 
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 * Contributors:
 
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 *    Red Hat - initial API and implementation
 
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 *******************************************************************************/
 
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package org.eclipse.linuxtools.internal.rpm.ui.editor.hyperlink;
 
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import org.eclipse.core.resources.IFile;
 
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import org.eclipse.jface.text.BadLocationException;
 
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import org.eclipse.jface.text.IDocument;
 
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import org.eclipse.jface.text.IRegion;
 
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import org.eclipse.jface.text.ITextViewer;
 
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import org.eclipse.jface.text.Region;
 
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import org.eclipse.jface.text.hyperlink.AbstractHyperlinkDetector;
 
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import org.eclipse.jface.text.hyperlink.IHyperlink;
 
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import org.eclipse.linuxtools.internal.rpm.ui.editor.UiUtils;
 
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import org.eclipse.linuxtools.rpm.ui.editor.SpecfileEditor;
 
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import org.eclipse.ui.part.FileEditorInput;
 
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/**
 
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 * Detects values for Patch and Source definitions.
 
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 * 
 
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 */
 
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public class SourcesFileHyperlinkDetector extends AbstractHyperlinkDetector {
 
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        SpecfileEditor editor;
 
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        private static final String PATCH_IDENTIFIER = "Patch"; //$NON-NLS-1$
 
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        private static final String SOURCE_IDENTIFIER = "Source"; //$NON-NLS-1$
 
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        /**
 
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         * @see org.eclipse.jface.text.hyperlink.IHyperlinkDetector#detectHyperlinks(org.eclipse.jface.text.ITextViewer,
 
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         *      org.eclipse.jface.text.IRegion, boolean)
 
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         */
 
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        public IHyperlink[] detectHyperlinks(ITextViewer textViewer,
 
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                        IRegion region, boolean canShowMultipleHyperlinks) {
 
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                if (region == null || textViewer == null) {
 
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                        return null;
 
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                }
 
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                if (editor == null) {
 
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                        editor = ((SpecfileEditor) this.getAdapter(SpecfileEditor.class));
 
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                        if (editor == null) {
 
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                                return null;
 
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                        }
 
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                }
 
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                IDocument document = textViewer.getDocument();
 
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                int offset = region.getOffset();
 
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                if (document == null) {
 
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                        return null;
 
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                }
 
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                IRegion lineInfo;
 
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                String line;
 
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                try {
 
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                        lineInfo = document.getLineInformationOfOffset(offset);
 
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                        line = document.get(lineInfo.getOffset(), lineInfo.getLength());
 
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                } catch (BadLocationException ex) {
 
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                        return null;
 
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                }
 
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                if (editor.getEditorInput() instanceof FileEditorInput) {
 
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                        IFile original = ((FileEditorInput) editor.getEditorInput())
 
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                                        .getFile();
 
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                        if (line.startsWith(SOURCE_IDENTIFIER)
 
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                                        || line.startsWith(PATCH_IDENTIFIER)) {
 
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                                int delimiterIndex = line.indexOf(':') + 1;
 
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                                String fileName = line.substring(delimiterIndex).trim();
 
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                                if (region.getOffset() > lineInfo.getOffset()
 
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                                                + line.indexOf(fileName)) {
 
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                                        IRegion fileNameRegion = new Region(lineInfo.getOffset()
 
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                                                        + line.indexOf(fileName), fileName.length());
 
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                                        return new IHyperlink[] {
 
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                                                        new SourcesFileHyperlink(original, UiUtils
 
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                                                                        .resolveDefines(editor.getSpecfile(),
 
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                                                                                        fileName), fileNameRegion),
 
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                                                        new SourcesFileDownloadHyperlink(original, UiUtils
 
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                                                                        .resolveDefines(editor.getSpecfile(),
 
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                                                                                        fileName), fileNameRegion) };
 
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                                }
 
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                        }
 
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                }
 
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                return null;
 
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        }
 
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        public void setEditor(SpecfileEditor editor) {
 
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                this.editor = editor;
 
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        }
 
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}