1 // Copyright (c) 2009 The Chromium Authors. All rights reserved.

     2 // Use of this source code is governed by a BSD-style license that can be

     3 // found in the LICENSE file.

     4 

     5 package org.chromium.debug.ui.editors;

     6 

     7 import org.eclipse.jface.text.IDocument;

     8 import org.eclipse.jface.text.ITextHover;

     9 import org.eclipse.jface.text.TextAttribute;

    10 import org.eclipse.jface.text.presentation.IPresentationReconciler;

    11 import org.eclipse.jface.text.presentation.PresentationReconciler;

    12 import org.eclipse.jface.text.rules.BufferedRuleBasedScanner;

    13 import org.eclipse.jface.text.rules.DefaultDamagerRepairer;

    14 import org.eclipse.jface.text.rules.Token;

    15 import org.eclipse.jface.text.source.ISourceViewer;

    16 import org.eclipse.ui.editors.text.TextSourceViewerConfiguration;

    17 

    18 /**

    19  * A JavaScript source viewer configuration.

    20  */

    21 public class JsSourceViewerConfiguration extends TextSourceViewerConfiguration {

    22 

    23   private static class MultilineCommentScanner extends BufferedRuleBasedScanner {

    24     public MultilineCommentScanner(TextAttribute attr) {

    25       setDefaultReturnToken(new Token(attr));

    26     }

    27   }

    28 

    29   private static final String[] CONTENT_TYPES = new String[] {

    30       IDocument.DEFAULT_CONTENT_TYPE,

    31       JsPartitionScanner.JSDOC,

    32       JsPartitionScanner.MULTILINE_COMMENT

    33   };

    34 

    35   private final JsCodeScanner scanner = new JsCodeScanner();

    36 

    37   @Override

    38   public ITextHover getTextHover(ISourceViewer sourceViewer, String contentType) {

    39     return new JsDebugTextHover();

    40   }

    41 

    42   @Override

    43   public IPresentationReconciler getPresentationReconciler(ISourceViewer sourceViewer) {

    44     PresentationReconciler pr = new PresentationReconciler();

    45     pr.setDocumentPartitioning(getConfiguredDocumentPartitioning(sourceViewer));

    46     setDamagerRepairer(pr, new DefaultDamagerRepairer(scanner), IDocument.DEFAULT_CONTENT_TYPE);

    47     setDamagerRepairer(

    48         pr, new DefaultDamagerRepairer(new MultilineCommentScanner(scanner.getCommentAttribute())),

    49         JsPartitionScanner.MULTILINE_COMMENT);

    50     setDamagerRepairer(

    51         pr, new DefaultDamagerRepairer(new MultilineCommentScanner(scanner.getJsDocAttribute())),

    52         JsPartitionScanner.JSDOC);

    53     return pr;

    54   }

    55 

    56   private void setDamagerRepairer(

    57       PresentationReconciler pr,

    58       DefaultDamagerRepairer damagerRepairer,

    59       String tokenType) {

    60     pr.setDamager(damagerRepairer, tokenType);

    61     pr.setRepairer(damagerRepairer, tokenType);

    62   }

    63 

    64   @Override

    65   public String[] getConfiguredContentTypes(ISourceViewer sourceViewer) {

    66     return CONTENT_TYPES;

    67   }

    68 

    69 }