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   1 /*
   2  * Copyright (c) 2002-2004 Widespace, OU and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     Igor Malinin - initial contribution
  10  *
  11  * $Id: TagDoubleClickStrategy.java,v 1.1 2004-09-02 18:28:03 jsurfer Exp $
  12  */
  13
  14 package net.sourceforge.phpeclipse.xml.ui.internal.text;
  15
  16 import org.eclipse.jface.text.BadLocationException;
  17 import org.eclipse.jface.text.IDocument;
  18 import org.eclipse.jface.text.ITextViewer;
  19 import org.eclipse.jface.text.ITypedRegion;
  20
  21 import net.sourceforge.phpeclipse.ui.text.TextDoubleClickStrategy;
  22
  23
  24 /**
  25  *
  26  *
  27  * @author Igor Malinin
  28  */
  29 public class TagDoubleClickStrategy extends TextDoubleClickStrategy {
  30         /*
  31          * @see org.eclipse.jface.text.ITextDoubleClickStrategy#doubleClicked(ITextViewer)
  32          */
  33         public void doubleClicked( ITextViewer viewer ) {
  34                 int offset = viewer.getSelectedRange().x;
  35                 if ( offset < 0 ) {
  36                         return;
  37                 }
  38
  39                 try {
  40                         IDocument document = viewer.getDocument();
  41
  42                         ITypedRegion region = document.getPartition( offset );
  43
  44                         int start = region.getOffset();
  45
  46                         if ( offset == start && document.getChar(offset) == '<' ) {
  47                                 region = document.getPartition( offset );
  48                                 offset = region.getOffset() + region.getLength();
  49
  50                                 if ( document.getChar(offset - 1) != '>' ) {
  51                                         while ( true ) {
  52                                                 if ( offset >= document.getLength() ) {
  53                                                         break;
  54                                                 }
  55
  56                                                 region = document.getPartition( offset );
  57                                                 offset = region.getOffset() + region.getLength();
  58
  59                                                 if ( XMLPartitionScanner.XML_ATTRIBUTE
  60                                                                 .equals(region.getType()) ) {
  61                                                         continue;
  62                                                 }
  63
  64                                                 if ( XMLPartitionScanner.XML_TAG
  65                                                                 .equals(region.getType()) ) {
  66                                                         if ( document.getChar(region.getOffset()) == '<' ) {
  67                                                                 break;
  68                                                         }
  69
  70                                                         if ( document.getChar(offset - 1) == '>' ) {
  71                                                                 break;
  72                                                         }
  73
  74                                                         continue;
  75                                                 }
  76
  77                                                 offset = region.getOffset();
  78                                                 break;
  79                                         }
  80                                 }
  81
  82                                 viewer.setSelectedRange( start, offset - start );
  83                                 return;
  84                         }
  85
  86                         int end = start + region.getLength();
  87
  88                         if ( offset == end - 1 && document.getChar(offset) == '>' ) {
  89                                 region = document.getPartition( offset );
  90                                 offset = region.getOffset();
  91
  92                                 if ( document.getChar(offset) != '<' ) {
  93                                         while ( true ) {
  94                                                 if ( offset <= 0 ) {
  95                                                         break;
  96                                                 }
  97
  98                                                 region = document.getPartition( offset - 1 );
  99                                                 offset = region.getOffset();
 100
 101                                                 if ( XMLPartitionScanner.XML_ATTRIBUTE
 102                                                                 .equals(region.getType()) ) {
 103                                                         continue;
 104                                                 }
 105
 106                                                 if ( XMLPartitionScanner.XML_TAG
 107                                                                 .equals(region.getType()) ) {
 108                                                         if ( document.getChar(offset) == '<' ) {
 109                                                                 break;
 110                                                         }
 111
 112                                                         continue;
 113                                                 }
 114
 115                                                 offset += region.getLength();
 116                                                 break;
 117                                         }
 118                                 }
 119
 120                                 viewer.setSelectedRange( offset, end - offset );
 121                                 return;
 122                         }
 123
 124                         super.doubleClicked( viewer );
 125                 } catch ( BadLocationException e ) {}
 126         }
 127 }