1 | /*
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2 | Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved.
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3 | For licensing, see LICENSE.html or http://ckeditor.com/license
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4 | */
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5 |
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6 | (function()
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7 | {
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8 | // Regex to scan for at the end of blocks, which are actually placeholders.
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9 | // Safari transforms the to \xa0. (#4172)
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10 | var tailNbspRegex = /^[\t\r\n ]*(?: |\xa0)$/;
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11 |
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12 | var protectedSourceMarker = '{cke_protected}';
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13 |
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14 | // Return the last non-space child node of the block (#4344).
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15 | function lastNoneSpaceChild( block )
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16 | {
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17 | var lastIndex = block.children.length,
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18 | last = block.children[ lastIndex - 1 ];
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19 | while ( last && last.type == CKEDITOR.NODE_TEXT && !CKEDITOR.tools.trim( last.value ) )
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20 | last = block.children[ --lastIndex ];
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21 | return last;
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22 | }
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23 |
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24 | function trimFillers( block, fromSource )
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25 | {
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26 | // If the current node is a block, and if we're converting from source or
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27 | // we're not in IE then search for and remove any tailing BR node.
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28 | //
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29 | // Also, any at the end of blocks are fillers, remove them as well.
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30 | // (#2886)
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31 | var children = block.children, lastChild = lastNoneSpaceChild( block );
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32 | if ( lastChild )
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33 | {
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34 | if ( ( fromSource || !CKEDITOR.env.ie ) && lastChild.type == CKEDITOR.NODE_ELEMENT && lastChild.name == 'br' )
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35 | children.pop();
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36 | if ( lastChild.type == CKEDITOR.NODE_TEXT && tailNbspRegex.test( lastChild.value ) )
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37 | children.pop();
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38 | }
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39 | }
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40 |
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41 | function blockNeedsExtension( block, fromSource, extendEmptyBlock )
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42 | {
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43 | if( !fromSource && ( !extendEmptyBlock ||
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44 | typeof extendEmptyBlock == 'function' && ( extendEmptyBlock( block ) === false ) ) )
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45 | return false;
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46 |
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47 | // 1. For IE version >=8, empty blocks are displayed correctly themself in wysiwiyg;
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48 | // 2. For the rest, at least table cell and list item need no filler space.
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49 | // (#6248)
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50 | if ( fromSource && CKEDITOR.env.ie &&
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51 | ( document.documentMode > 7
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52 | || block.name in CKEDITOR.dtd.tr
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53 | || block.name in CKEDITOR.dtd.$listItem ) )
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54 | return false;
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55 |
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56 | var lastChild = lastNoneSpaceChild( block );
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57 |
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58 | return !lastChild || lastChild &&
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59 | ( lastChild.type == CKEDITOR.NODE_ELEMENT && lastChild.name == 'br'
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60 | // Some of the controls in form needs extension too,
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61 | // to move cursor at the end of the form. (#4791)
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62 | || block.name == 'form' && lastChild.name == 'input' );
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63 | }
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64 |
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65 | function getBlockExtension( isOutput, emptyBlockFiller )
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66 | {
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67 | return function( node )
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68 | {
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69 | trimFillers( node, !isOutput );
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70 |
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71 | if ( blockNeedsExtension( node, !isOutput, emptyBlockFiller ) )
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72 | {
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73 | if ( isOutput || CKEDITOR.env.ie )
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74 | node.add( new CKEDITOR.htmlParser.text( '\xa0' ) );
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75 | else
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76 | node.add( new CKEDITOR.htmlParser.element( 'br', {} ) );
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77 | }
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78 | };
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79 | }
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80 |
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81 | var dtd = CKEDITOR.dtd;
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82 |
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83 | // Define orders of table elements.
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84 | var tableOrder = [ 'caption', 'colgroup', 'col', 'thead', 'tfoot', 'tbody' ];
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85 |
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86 | // Find out the list of block-like tags that can contain <br>.
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87 | var blockLikeTags = CKEDITOR.tools.extend( {}, dtd.$block, dtd.$listItem, dtd.$tableContent );
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88 | for ( var i in blockLikeTags )
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89 | {
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90 | if ( ! ( 'br' in dtd[i] ) )
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91 | delete blockLikeTags[i];
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92 | }
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93 | // We just avoid filler in <pre> right now.
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94 | // TODO: Support filler for <pre>, line break is also occupy line height.
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95 | delete blockLikeTags.pre;
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96 | var defaultDataFilterRules =
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97 | {
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98 | elements : {},
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99 | attributeNames :
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100 | [
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101 | // Event attributes (onXYZ) must not be directly set. They can become
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102 | // active in the editing area (IE|WebKit).
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103 | [ ( /^on/ ), 'data-cke-pa-on' ]
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104 | ]
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105 | };
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106 |
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107 | var defaultDataBlockFilterRules = { elements : {} };
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108 |
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109 | for ( i in blockLikeTags )
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110 | defaultDataBlockFilterRules.elements[ i ] = getBlockExtension();
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111 |
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112 | var defaultHtmlFilterRules =
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113 | {
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114 | elementNames :
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115 | [
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116 | // Remove the "cke:" namespace prefix.
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117 | [ ( /^cke:/ ), '' ],
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118 |
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119 | // Ignore <?xml:namespace> tags.
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120 | [ ( /^\?xml:namespace$/ ), '' ]
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121 | ],
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122 |
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123 | attributeNames :
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124 | [
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125 | // Attributes saved for changes and protected attributes.
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126 | [ ( /^data-cke-(saved|pa)-/ ), '' ],
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127 |
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128 | // All "data-cke-" attributes are to be ignored.
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129 | [ ( /^data-cke-.*/ ), '' ],
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130 |
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131 | [ 'hidefocus', '' ]
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132 | ],
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133 |
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134 | elements :
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135 | {
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136 | $ : function( element )
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137 | {
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138 | var attribs = element.attributes;
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139 |
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140 | if ( attribs )
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141 | {
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142 | // Elements marked as temporary are to be ignored.
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143 | if ( attribs[ 'data-cke-temp' ] )
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144 | return false;
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145 |
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146 | // Remove duplicated attributes - #3789.
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147 | var attributeNames = [ 'name', 'href', 'src' ],
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148 | savedAttributeName;
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149 | for ( var i = 0 ; i < attributeNames.length ; i++ )
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150 | {
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151 | savedAttributeName = 'data-cke-saved-' + attributeNames[ i ];
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152 | savedAttributeName in attribs && ( delete attribs[ attributeNames[ i ] ] );
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153 | }
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154 | }
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155 |
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156 | return element;
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157 | },
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158 |
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159 | // The contents of table should be in correct order (#4809).
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160 | table : function( element )
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161 | {
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162 | var children = element.children;
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163 | children.sort( function ( node1, node2 )
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164 | {
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165 | return node1.type == CKEDITOR.NODE_ELEMENT && node2.type == node1.type ?
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166 | CKEDITOR.tools.indexOf( tableOrder, node1.name ) > CKEDITOR.tools.indexOf( tableOrder, node2.name ) ? 1 : -1 : 0;
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167 | } );
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168 | },
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169 |
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170 | embed : function( element )
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171 | {
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172 | var parent = element.parent;
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173 |
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174 | // If the <embed> is child of a <object>, copy the width
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175 | // and height attributes from it.
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176 | if ( parent && parent.name == 'object' )
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177 | {
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178 | var parentWidth = parent.attributes.width,
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179 | parentHeight = parent.attributes.height;
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180 | parentWidth && ( element.attributes.width = parentWidth );
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181 | parentHeight && ( element.attributes.height = parentHeight );
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182 | }
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183 | },
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184 | // Restore param elements into self-closing.
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185 | param : function( param )
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186 | {
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187 | param.children = [];
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188 | param.isEmpty = true;
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189 | return param;
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190 | },
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191 |
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192 | // Remove empty link but not empty anchor.(#3829)
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193 | a : function( element )
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194 | {
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195 | if ( !( element.children.length ||
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196 | element.attributes.name ||
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197 | element.attributes[ 'data-cke-saved-name' ] ) )
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198 | {
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199 | return false;
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200 | }
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201 | },
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202 |
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203 | // Remove dummy span in webkit.
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204 | span: function( element )
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205 | {
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206 | if ( element.attributes[ 'class' ] == 'Apple-style-span' )
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207 | delete element.name;
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208 | },
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209 |
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210 | // Empty <pre> in IE is reported with filler node ( ).
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211 | pre : function( element ) { CKEDITOR.env.ie && trimFillers( element ); },
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212 |
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213 | html : function( element )
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214 | {
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215 | delete element.attributes.contenteditable;
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216 | delete element.attributes[ 'class' ];
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217 | },
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218 |
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219 | body : function( element )
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220 | {
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221 | delete element.attributes.spellcheck;
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222 | delete element.attributes.contenteditable;
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223 | },
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224 |
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225 | style : function( element )
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226 | {
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227 | var child = element.children[ 0 ];
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228 | child && child.value && ( child.value = CKEDITOR.tools.trim( child.value ));
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229 |
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230 | if ( !element.attributes.type )
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231 | element.attributes.type = 'text/css';
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232 | },
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233 |
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234 | title : function( element )
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235 | {
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236 | var titleText = element.children[ 0 ];
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237 | titleText && ( titleText.value = element.attributes[ 'data-cke-title' ] || '' );
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238 | }
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239 | },
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240 |
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241 | attributes :
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242 | {
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243 | 'class' : function( value, element )
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244 | {
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245 | // Remove all class names starting with "cke_".
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246 | return CKEDITOR.tools.ltrim( value.replace( /(?:^|\s+)cke_[^\s]*/g, '' ) ) || false;
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247 | }
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248 | }
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249 | };
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250 |
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251 | if ( CKEDITOR.env.ie )
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252 | {
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253 | // IE outputs style attribute in capital letters. We should convert
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254 | // them back to lower case, while not hurting the values (#5930)
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255 | defaultHtmlFilterRules.attributes.style = function( value, element )
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256 | {
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257 | return value.replace( /(^|;)([^\:]+)/g, function( match )
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258 | {
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259 | return match.toLowerCase();
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260 | });
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261 | };
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262 | }
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263 |
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264 | function protectReadOnly( element )
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265 | {
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266 | var attrs = element.attributes;
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267 |
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268 | // We should flag that the element was locked by our code so
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269 | // it'll be editable by the editor functions (#6046).
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270 | if ( attrs.contenteditable != "false" )
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271 | attrs[ 'data-cke-editable' ] = attrs.contenteditable ? 'true' : 1;
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272 |
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273 | attrs.contenteditable = "false";
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274 | }
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275 | function unprotectReadyOnly( element )
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276 | {
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277 | var attrs = element.attributes;
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278 | switch( attrs[ 'data-cke-editable' ] )
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279 | {
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280 | case 'true': attrs.contenteditable = 'true'; break;
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281 | case '1': delete attrs.contenteditable; break;
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282 | }
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283 | }
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284 | // Disable form elements editing mode provided by some browers. (#5746)
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285 | for ( i in { input : 1, textarea : 1 } )
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286 | {
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287 | defaultDataFilterRules.elements[ i ] = protectReadOnly;
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288 | defaultHtmlFilterRules.elements[ i ] = unprotectReadyOnly;
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289 | }
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290 |
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291 | var protectElementRegex = /<(a|area|img|input)\b([^>]*)>/gi,
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292 | protectAttributeRegex = /\b(on\w+|href|src|name)\s*=\s*(?:(?:"[^"]*")|(?:'[^']*')|(?:[^ "'>]+))/gi;
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293 |
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294 | var protectElementsRegex = /(?:<style(?=[ >])[^>]*>[\s\S]*<\/style>)|(?:<(:?link|meta|base)[^>]*>)/gi,
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295 | encodedElementsRegex = /<cke:encoded>([^<]*)<\/cke:encoded>/gi;
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296 |
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297 | var protectElementNamesRegex = /(<\/?)((?:object|embed|param|html|body|head|title)[^>]*>)/gi,
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298 | unprotectElementNamesRegex = /(<\/?)cke:((?:html|body|head|title)[^>]*>)/gi;
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299 |
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300 | var protectSelfClosingRegex = /<cke:(param|embed)([^>]*?)\/?>(?!\s*<\/cke:\1)/gi;
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301 |
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302 | function protectAttributes( html )
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303 | {
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304 | return html.replace( protectElementRegex, function( element, tag, attributes )
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305 | {
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306 | return '<' + tag + attributes.replace( protectAttributeRegex, function( fullAttr, attrName )
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307 | {
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308 | // Avoid corrupting the inline event attributes (#7243).
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309 | // We should not rewrite the existed protected attributes, e.g. clipboard content from editor. (#5218)
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310 | if ( !( /^on/ ).test( attrName ) && attributes.indexOf( 'data-cke-saved-' + attrName ) == -1 )
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311 | return ' data-cke-saved-' + fullAttr + ' ' + fullAttr;
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312 |
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313 | return fullAttr;
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314 | }) + '>';
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315 | });
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316 | }
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317 |
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318 | function protectElements( html )
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319 | {
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320 | return html.replace( protectElementsRegex, function( match )
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321 | {
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322 | return '<cke:encoded>' + encodeURIComponent( match ) + '</cke:encoded>';
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323 | });
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324 | }
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325 |
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326 | function unprotectElements( html )
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327 | {
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328 | return html.replace( encodedElementsRegex, function( match, encoded )
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329 | {
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330 | return decodeURIComponent( encoded );
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331 | });
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332 | }
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333 |
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334 | function protectElementsNames( html )
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335 | {
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336 | return html.replace( protectElementNamesRegex, '$1cke:$2');
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337 | }
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338 |
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339 | function unprotectElementNames( html )
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340 | {
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341 | return html.replace( unprotectElementNamesRegex, '$1$2' );
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342 | }
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343 |
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344 | function protectSelfClosingElements( html )
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345 | {
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346 | return html.replace( protectSelfClosingRegex, '<cke:$1$2></cke:$1>' );
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347 | }
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348 |
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349 | function protectPreFormatted( html )
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350 | {
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351 | return html.replace( /(<pre\b[^>]*>)(\r\n|\n)/g, '$1$2$2' );
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352 | }
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353 |
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354 | function protectRealComments( html )
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355 | {
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356 | return html.replace( /<!--(?!{cke_protected})[\s\S]+?-->/g, function( match )
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357 | {
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358 | return '<!--' + protectedSourceMarker +
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359 | '{C}' +
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360 | encodeURIComponent( match ).replace( /--/g, '%2D%2D' ) +
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361 | '-->';
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362 | });
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363 | }
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364 |
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365 | function unprotectRealComments( html )
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366 | {
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367 | return html.replace( /<!--\{cke_protected\}\{C\}([\s\S]+?)-->/g, function( match, data )
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368 | {
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369 | return decodeURIComponent( data );
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370 | });
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371 | }
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372 |
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373 | function unprotectSource( html, editor )
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374 | {
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375 | var store = editor._.dataStore;
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376 |
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377 | return html.replace( /<!--\{cke_protected\}([\s\S]+?)-->/g, function( match, data )
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378 | {
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379 | return decodeURIComponent( data );
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380 | }).replace( /\{cke_protected_(\d+)\}/g, function( match, id )
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381 | {
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382 | return store && store[ id ] || '';
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383 | });
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384 | }
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385 |
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386 | function protectSource( data, editor )
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387 | {
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388 | var protectedHtml = [],
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389 | protectRegexes = editor.config.protectedSource,
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390 | store = editor._.dataStore || ( editor._.dataStore = { id : 1 } ),
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391 | tempRegex = /<\!--\{cke_temp(comment)?\}(\d*?)-->/g;
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392 |
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393 | var regexes =
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394 | [
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395 | // Script tags will also be forced to be protected, otherwise
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396 | // IE will execute them.
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397 | ( /<script[\s\S]*?<\/script>/gi ),
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398 |
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399 | // <noscript> tags (get lost in IE and messed up in FF).
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400 | /<noscript[\s\S]*?<\/noscript>/gi
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401 | ]
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402 | .concat( protectRegexes );
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403 |
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404 | // First of any other protection, we must protect all comments
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405 | // to avoid loosing them (of course, IE related).
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406 | // Note that we use a different tag for comments, as we need to
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407 | // transform them when applying filters.
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408 | data = data.replace( (/<!--[\s\S]*?-->/g), function( match )
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409 | {
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410 | return '<!--{cke_tempcomment}' + ( protectedHtml.push( match ) - 1 ) + '-->';
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411 | });
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412 |
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413 | for ( var i = 0 ; i < regexes.length ; i++ )
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414 | {
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415 | data = data.replace( regexes[i], function( match )
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416 | {
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417 | match = match.replace( tempRegex, // There could be protected source inside another one. (#3869).
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418 | function( $, isComment, id )
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419 | {
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420 | return protectedHtml[ id ];
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421 | }
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422 | );
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423 |
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424 | // Avoid protecting over protected, e.g. /\{.*?\}/
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425 | return ( /cke_temp(comment)?/ ).test( match ) ? match
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426 | : '<!--{cke_temp}' + ( protectedHtml.push( match ) - 1 ) + '-->';
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427 | });
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428 | }
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429 | data = data.replace( tempRegex, function( $, isComment, id )
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430 | {
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431 | return '<!--' + protectedSourceMarker +
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432 | ( isComment ? '{C}' : '' ) +
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433 | encodeURIComponent( protectedHtml[ id ] ).replace( /--/g, '%2D%2D' ) +
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434 | '-->';
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435 | }
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436 | );
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437 |
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438 | // Different protection pattern is used for those that
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439 | // live in attributes to avoid from being HTML encoded.
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440 | return data.replace( /(['"]).*?\1/g, function ( match )
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441 | {
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442 | return match.replace( /<!--\{cke_protected\}([\s\S]+?)-->/g, function( match, data )
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443 | {
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444 | store[ store.id ] = decodeURIComponent( data );
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445 | return '{cke_protected_'+ ( store.id++ ) + '}';
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446 | });
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447 | });
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448 | }
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449 |
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450 | CKEDITOR.plugins.add( 'htmldataprocessor',
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451 | {
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452 | requires : [ 'htmlwriter' ],
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453 |
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454 | init : function( editor )
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455 | {
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456 | var dataProcessor = editor.dataProcessor = new CKEDITOR.htmlDataProcessor( editor );
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457 |
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458 | dataProcessor.writer.forceSimpleAmpersand = editor.config.forceSimpleAmpersand;
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459 |
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460 | dataProcessor.dataFilter.addRules( defaultDataFilterRules );
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461 | dataProcessor.dataFilter.addRules( defaultDataBlockFilterRules );
|
---|
462 | dataProcessor.htmlFilter.addRules( defaultHtmlFilterRules );
|
---|
463 |
|
---|
464 | var defaultHtmlBlockFilterRules = { elements : {} };
|
---|
465 | for ( i in blockLikeTags )
|
---|
466 | defaultHtmlBlockFilterRules.elements[ i ] = getBlockExtension( true, editor.config.fillEmptyBlocks );
|
---|
467 |
|
---|
468 | dataProcessor.htmlFilter.addRules( defaultHtmlBlockFilterRules );
|
---|
469 | },
|
---|
470 |
|
---|
471 | onLoad : function()
|
---|
472 | {
|
---|
473 | ! ( 'fillEmptyBlocks' in CKEDITOR.config ) && ( CKEDITOR.config.fillEmptyBlocks = 1 );
|
---|
474 | }
|
---|
475 | });
|
---|
476 |
|
---|
477 | CKEDITOR.htmlDataProcessor = function( editor )
|
---|
478 | {
|
---|
479 | this.editor = editor;
|
---|
480 |
|
---|
481 | this.writer = new CKEDITOR.htmlWriter();
|
---|
482 | this.dataFilter = new CKEDITOR.htmlParser.filter();
|
---|
483 | this.htmlFilter = new CKEDITOR.htmlParser.filter();
|
---|
484 | };
|
---|
485 |
|
---|
486 | CKEDITOR.htmlDataProcessor.prototype =
|
---|
487 | {
|
---|
488 | toHtml : function( data, fixForBody )
|
---|
489 | {
|
---|
490 | // The source data is already HTML, but we need to clean
|
---|
491 | // it up and apply the filter.
|
---|
492 |
|
---|
493 | data = protectSource( data, this.editor );
|
---|
494 |
|
---|
495 | // Before anything, we must protect the URL attributes as the
|
---|
496 | // browser may changing them when setting the innerHTML later in
|
---|
497 | // the code.
|
---|
498 | data = protectAttributes( data );
|
---|
499 |
|
---|
500 | // Protect elements than can't be set inside a DIV. E.g. IE removes
|
---|
501 | // style tags from innerHTML. (#3710)
|
---|
502 | data = protectElements( data );
|
---|
503 |
|
---|
504 | // Certain elements has problem to go through DOM operation, protect
|
---|
505 | // them by prefixing 'cke' namespace. (#3591)
|
---|
506 | data = protectElementsNames( data );
|
---|
507 |
|
---|
508 | // All none-IE browsers ignore self-closed custom elements,
|
---|
509 | // protecting them into open-close. (#3591)
|
---|
510 | data = protectSelfClosingElements( data );
|
---|
511 |
|
---|
512 | // Compensate one leading line break after <pre> open as browsers
|
---|
513 | // eat it up. (#5789)
|
---|
514 | data = protectPreFormatted( data );
|
---|
515 |
|
---|
516 | // Call the browser to help us fixing a possibly invalid HTML
|
---|
517 | // structure.
|
---|
518 | var div = new CKEDITOR.dom.element( 'div' );
|
---|
519 | // Add fake character to workaround IE comments bug. (#3801)
|
---|
520 | div.setHtml( 'a' + data );
|
---|
521 | data = div.getHtml().substr( 1 );
|
---|
522 |
|
---|
523 | // Unprotect "some" of the protected elements at this point.
|
---|
524 | data = unprotectElementNames( data );
|
---|
525 |
|
---|
526 | data = unprotectElements( data );
|
---|
527 |
|
---|
528 | // Restore the comments that have been protected, in this way they
|
---|
529 | // can be properly filtered.
|
---|
530 | data = unprotectRealComments( data );
|
---|
531 |
|
---|
532 | // Now use our parser to make further fixes to the structure, as
|
---|
533 | // well as apply the filter.
|
---|
534 | var fragment = CKEDITOR.htmlParser.fragment.fromHtml( data, fixForBody ),
|
---|
535 | writer = new CKEDITOR.htmlParser.basicWriter();
|
---|
536 |
|
---|
537 | fragment.writeHtml( writer, this.dataFilter );
|
---|
538 | data = writer.getHtml( true );
|
---|
539 |
|
---|
540 | // Protect the real comments again.
|
---|
541 | data = protectRealComments( data );
|
---|
542 |
|
---|
543 | return data;
|
---|
544 | },
|
---|
545 |
|
---|
546 | toDataFormat : function( html, fixForBody )
|
---|
547 | {
|
---|
548 | var writer = this.writer,
|
---|
549 | fragment = CKEDITOR.htmlParser.fragment.fromHtml( html, fixForBody );
|
---|
550 |
|
---|
551 | writer.reset();
|
---|
552 |
|
---|
553 | fragment.writeHtml( writer, this.htmlFilter );
|
---|
554 |
|
---|
555 | var data = writer.getHtml( true );
|
---|
556 |
|
---|
557 | // Restore those non-HTML protected source. (#4475,#4880)
|
---|
558 | data = unprotectRealComments( data );
|
---|
559 | data = unprotectSource( data, this.editor );
|
---|
560 |
|
---|
561 | return data;
|
---|
562 | }
|
---|
563 | };
|
---|
564 | })();
|
---|
565 |
|
---|
566 | /**
|
---|
567 | * Whether to force using "&" instead of "&amp;" in elements attributes
|
---|
568 | * values, it's not recommended to change this setting for compliance with the
|
---|
569 | * W3C XHTML 1.0 standards (<a href="http://www.w3.org/TR/xhtml1/#C_12">C.12, XHTML 1.0</a>).
|
---|
570 | * @name CKEDITOR.config.forceSimpleAmpersand
|
---|
571 | * @name CKEDITOR.config.forceSimpleAmpersand
|
---|
572 | * @type Boolean
|
---|
573 | * @default false
|
---|
574 | * @example
|
---|
575 | * config.forceSimpleAmpersand = false;
|
---|
576 | */
|
---|
577 |
|
---|
578 | /**
|
---|
579 | * Whether a filler text (non-breaking space entity - ) will be inserted into empty block elements in HTML output,
|
---|
580 | * this is used to render block elements properly with line-height; When a function is instead specified,
|
---|
581 | * it'll be passed a {@link CKEDITOR.htmlParser.element} to decide whether adding the filler text
|
---|
582 | * by expecting a boolean return value.
|
---|
583 | * @name CKEDITOR.config.fillEmptyBlocks
|
---|
584 | * @since 3.5
|
---|
585 | * @type Boolean
|
---|
586 | * @default true
|
---|
587 | * @example
|
---|
588 | * config.fillEmptyBlocks = false; // Prevent filler nodes in all empty blocks.
|
---|
589 | *
|
---|
590 | * // Prevent filler node only in float cleaners.
|
---|
591 | * config.fillEmptyBlocks = function( element )
|
---|
592 | * {
|
---|
593 | * if ( element.attributes[ 'class' ].indexOf ( 'clear-both' ) != -1 )
|
---|
594 | * return false;
|
---|
595 | * }
|
---|
596 | */
|
---|