1 | /*
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2 | * FCKeditor - The text editor for internet
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3 | * Copyright (C) 2003-2006 Frederico Caldeira Knabben
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4 | *
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5 | * Licensed under the terms of the GNU Lesser General Public License:
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6 | * http://www.opensource.org/licenses/lgpl-license.php
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7 | *
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8 | * For further information visit:
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9 | * http://www.fckeditor.net/
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10 | *
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11 | * "Support Open Source software. What about a donation today?"
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12 | *
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13 | * File Name: fckselection_ie.js
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14 | * Active selection functions. (IE specific implementation)
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15 | *
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16 | * File Authors:
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17 | * Frederico Caldeira Knabben (fredck@fckeditor.net)
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18 | */
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19 |
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20 | // Get the selection type.
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21 | FCKSelection.GetType = function()
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22 | {
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23 | return FCK.EditorDocument.selection.type ;
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24 | }
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25 |
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26 | // Retrieves the selected element (if any), just in the case that a single
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27 | // element (object like and image or a table) is selected.
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28 | FCKSelection.GetSelectedElement = function()
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29 | {
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30 | if ( this.GetType() == 'Control' )
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31 | {
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32 | var oRange = FCK.EditorDocument.selection.createRange() ;
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33 |
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34 | if ( oRange && oRange.item )
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35 | return FCK.EditorDocument.selection.createRange().item(0) ;
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36 | }
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37 | }
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38 |
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39 | FCKSelection.GetParentElement = function()
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40 | {
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41 | switch ( this.GetType() )
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42 | {
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43 | case 'Control' :
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44 | return FCKSelection.GetSelectedElement().parentElement ;
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45 | case 'None' :
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46 | return ;
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47 | default :
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48 | return FCK.EditorDocument.selection.createRange().parentElement() ;
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49 | }
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50 | }
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51 |
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52 | FCKSelection.SelectNode = function( node )
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53 | {
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54 | FCK.Focus() ;
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55 | FCK.EditorDocument.selection.empty() ;
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56 |
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57 | try
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58 | {
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59 | // Try to select the node as a control.
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60 | var oRange = FCK.EditorDocument.body.createControlRange() ;
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61 | oRange.addElement( node ) ;
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62 | }
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63 | catch(e)
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64 | {
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65 | // If failed, select it as a text range.
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66 | var oRange = FCK.EditorDocument.selection.createRange() ;
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67 | oRange.moveToElementText( node ) ;
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68 | }
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69 |
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70 | oRange.select() ;
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71 | }
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72 |
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73 | FCKSelection.Collapse = function( toStart )
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74 | {
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75 | FCK.Focus() ;
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76 | if ( this.GetType() == 'Text' )
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77 | {
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78 | var oRange = FCK.EditorDocument.selection.createRange() ;
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79 | oRange.collapse( toStart == null || toStart === true ) ;
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80 | oRange.select() ;
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81 | }
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82 | }
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83 |
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84 | // The "nodeTagName" parameter must be Upper Case.
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85 | FCKSelection.HasAncestorNode = function( nodeTagName )
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86 | {
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87 | var oContainer ;
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88 |
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89 | if ( FCK.EditorDocument.selection.type == "Control" )
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90 | {
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91 | oContainer = this.GetSelectedElement() ;
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92 | }
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93 | else
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94 | {
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95 | var oRange = FCK.EditorDocument.selection.createRange() ;
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96 | oContainer = oRange.parentElement() ;
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97 | }
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98 |
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99 | while ( oContainer )
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100 | {
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101 | if ( oContainer.tagName == nodeTagName ) return true ;
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102 | oContainer = oContainer.parentNode ;
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103 | }
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104 |
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105 | return false ;
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106 | }
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107 |
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108 | // The "nodeTagName" parameter must be UPPER CASE.
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109 | FCKSelection.MoveToAncestorNode = function( nodeTagName )
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110 | {
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111 | var oNode ;
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112 |
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113 | if ( FCK.EditorDocument.selection.type == "Control" )
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114 | {
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115 | var oRange = FCK.EditorDocument.selection.createRange() ;
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116 | for ( i = 0 ; i < oRange.length ; i++ )
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117 | {
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118 | if (oRange(i).parentNode)
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119 | {
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120 | oNode = oRange(i).parentNode ;
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121 | break ;
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122 | }
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123 | }
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124 | }
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125 | else
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126 | {
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127 | var oRange = FCK.EditorDocument.selection.createRange() ;
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128 | oNode = oRange.parentElement() ;
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129 | }
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130 |
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131 | while ( oNode && oNode.nodeName != nodeTagName )
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132 | oNode = oNode.parentNode ;
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133 |
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134 | return oNode ;
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135 | }
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136 |
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137 | FCKSelection.Delete = function()
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138 | {
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139 | // Gets the actual selection.
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140 | var oSel = FCK.EditorDocument.selection ;
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141 |
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142 | // Deletes the actual selection contents.
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143 | if ( oSel.type.toLowerCase() != "none" )
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144 | {
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145 | oSel.clear() ;
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146 | }
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147 |
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148 | return oSel ;
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149 | }
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150 |
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151 |
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