| 1 | /*
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| 2 | Copyright (c) 2003-2010, 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 )
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| 42 | {
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| 43 | var lastChild = lastNoneSpaceChild( block );
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| 44 |
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| 45 | return !lastChild
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| 46 | || lastChild.type == CKEDITOR.NODE_ELEMENT && lastChild.name == 'br'
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| 47 | // Some of the controls in form needs extension too,
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| 48 | // to move cursor at the end of the form. (#4791)
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| 49 | || block.name == 'form' && lastChild.name == 'input';
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| 50 | }
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| 51 |
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| 52 | function extendBlockForDisplay( block )
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| 53 | {
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| 54 | trimFillers( block, true );
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| 55 |
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| 56 | if ( blockNeedsExtension( block ) )
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| 57 | {
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| 58 | if ( CKEDITOR.env.ie )
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| 59 | block.add( new CKEDITOR.htmlParser.text( '\xa0' ) );
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| 60 | else
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| 61 | block.add( new CKEDITOR.htmlParser.element( 'br', {} ) );
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| 62 | }
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| 63 | }
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| 64 |
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| 65 | function extendBlockForOutput( block )
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| 66 | {
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| 67 | trimFillers( block );
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| 68 |
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| 69 | if ( blockNeedsExtension( block ) )
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| 70 | block.add( new CKEDITOR.htmlParser.text( '\xa0' ) );
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| 71 | }
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| 72 |
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| 73 | var dtd = CKEDITOR.dtd;
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| 74 |
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| 75 | // Find out the list of block-like tags that can contain <br>.
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| 76 | var blockLikeTags = CKEDITOR.tools.extend( {}, dtd.$block, dtd.$listItem, dtd.$tableContent );
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| 77 | for ( var i in blockLikeTags )
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| 78 | if ( ! ( i in Object.prototype ) )
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| 79 | {
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| 80 | if ( ! ( 'br' in dtd[i] ) )
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| 81 | delete blockLikeTags[i];
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| 82 | }
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| 83 | // We just avoid filler in <pre> right now.
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| 84 | // TODO: Support filler for <pre>, line break is also occupy line height.
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| 85 | delete blockLikeTags.pre;
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| 86 | var defaultDataFilterRules =
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| 87 | {
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| 88 | attributeNames :
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| 89 | [
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| 90 | // Event attributes (onXYZ) must not be directly set. They can become
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| 91 | // active in the editing area (IE|WebKit).
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| 92 | [ ( /^on/ ), '_cke_pa_on' ]
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| 93 | ]
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| 94 | };
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| 95 |
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| 96 | var defaultDataBlockFilterRules = { elements : {} };
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| 97 |
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| 98 | for ( i in blockLikeTags )
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| 99 | defaultDataBlockFilterRules.elements[ i ] = extendBlockForDisplay;
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| 100 |
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| 101 | var defaultHtmlFilterRules =
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| 102 | {
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| 103 | elementNames :
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| 104 | [
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| 105 | // Remove the "cke:" namespace prefix.
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| 106 | [ ( /^cke:/ ), '' ],
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| 107 |
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| 108 | // Ignore <?xml:namespace> tags.
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| 109 | [ ( /^\?xml:namespace$/ ), '' ]
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| 110 | ],
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| 111 |
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| 112 | attributeNames :
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| 113 | [
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| 114 | // Attributes saved for changes and protected attributes.
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| 115 | [ ( /^_cke_(saved|pa)_/ ), '' ],
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| 116 |
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| 117 | // All "_cke" attributes are to be ignored.
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| 118 | [ ( /^_cke.*/ ), '' ],
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| 119 |
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| 120 | [ 'hidefocus', '' ]
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| 121 | ],
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| 122 |
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| 123 | elements :
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| 124 | {
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| 125 | $ : function( element )
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| 126 | {
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| 127 | var attribs = element.attributes;
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| 128 |
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| 129 | if ( attribs )
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| 130 | {
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| 131 | // Elements marked as temporary are to be ignored.
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| 132 | if ( attribs.cke_temp )
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| 133 | return false;
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| 134 |
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| 135 | // Remove duplicated attributes - #3789.
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| 136 | var attributeNames = [ 'name', 'href', 'src' ],
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| 137 | savedAttributeName;
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| 138 | for ( var i = 0 ; i < attributeNames.length ; i++ )
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| 139 | {
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| 140 | savedAttributeName = '_cke_saved_' + attributeNames[ i ];
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| 141 | savedAttributeName in attribs && ( delete attribs[ attributeNames[ i ] ] );
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| 142 | }
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| 143 | }
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| 144 |
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| 145 | return element;
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| 146 | },
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| 147 |
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| 148 | embed : function( element )
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| 149 | {
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| 150 | var parent = element.parent;
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| 151 |
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| 152 | // If the <embed> is child of a <object>, copy the width
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| 153 | // and height attributes from it.
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| 154 | if ( parent && parent.name == 'object' )
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| 155 | {
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| 156 | var parentWidth = parent.attributes.width,
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| 157 | parentHeight = parent.attributes.height;
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| 158 | parentWidth && ( element.attributes.width = parentWidth );
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| 159 | parentHeight && ( element.attributes.height = parentHeight );
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| 160 | }
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| 161 | },
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| 162 | // Restore param elements into self-closing.
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| 163 | param : function( param )
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| 164 | {
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| 165 | param.children = [];
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| 166 | param.isEmpty = true;
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| 167 | return param;
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| 168 | },
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| 169 |
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| 170 | // Remove empty link but not empty anchor.(#3829)
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| 171 | a : function( element )
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| 172 | {
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| 173 | if ( !( element.children.length ||
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| 174 | element.attributes.name ||
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| 175 | element.attributes._cke_saved_name ) )
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| 176 | {
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| 177 | return false;
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| 178 | }
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| 179 | },
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| 180 |
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| 181 | body : function( element )
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| 182 | {
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| 183 | delete element.attributes.spellcheck;
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| 184 | delete element.attributes.contenteditable;
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| 185 | },
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| 186 |
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| 187 | style : function( element )
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| 188 | {
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| 189 | var child = element.children[ 0 ];
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| 190 | child && child.value && ( child.value = CKEDITOR.tools.trim( child.value ));
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| 191 |
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| 192 | if ( !element.attributes.type )
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| 193 | element.attributes.type = 'text/css';
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| 194 | },
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| 195 |
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| 196 | title : function( element )
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| 197 | {
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| 198 | element.children[ 0 ].value = element.attributes[ '_cke_title' ];
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| 199 | }
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| 200 | },
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| 201 |
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| 202 | attributes :
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| 203 | {
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| 204 | 'class' : function( value, element )
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| 205 | {
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| 206 | // Remove all class names starting with "cke_".
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| 207 | return CKEDITOR.tools.ltrim( value.replace( /(?:^|\s+)cke_[^\s]*/g, '' ) ) || false;
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| 208 | }
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| 209 | },
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| 210 |
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| 211 | comment : function( contents )
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| 212 | {
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| 213 | // If this is a comment for protected source.
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| 214 | if ( contents.substr( 0, protectedSourceMarker.length ) == protectedSourceMarker )
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| 215 | {
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| 216 | // Remove the extra marker for real comments from it.
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| 217 | if ( contents.substr( protectedSourceMarker.length, 3 ) == '{C}' )
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| 218 | contents = contents.substr( protectedSourceMarker.length + 3 );
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| 219 | else
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| 220 | contents = contents.substr( protectedSourceMarker.length );
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| 221 |
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| 222 | return new CKEDITOR.htmlParser.cdata( decodeURIComponent( contents ) );
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| 223 | }
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| 224 |
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| 225 | return contents;
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| 226 | }
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| 227 | };
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| 228 |
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| 229 | var defaultHtmlBlockFilterRules = { elements : {} };
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| 230 |
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| 231 | for ( i in blockLikeTags )
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| 232 | defaultHtmlBlockFilterRules.elements[ i ] = extendBlockForOutput;
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| 233 |
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| 234 | if ( CKEDITOR.env.ie )
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| 235 | {
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| 236 | // IE outputs style attribute in capital letters. We should convert
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| 237 | // them back to lower case.
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| 238 | defaultHtmlFilterRules.attributes.style = function( value, element )
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| 239 | {
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| 240 | return value.toLowerCase();
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| 241 | };
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| 242 | }
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| 243 |
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| 244 | var protectAttributeRegex = /<(?:a|area|img|input)[\s\S]*?\s((?:href|src|name)\s*=\s*(?:(?:"[^"]*")|(?:'[^']*')|(?:[^ "'>]+)))/gi;
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| 245 |
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| 246 | var protectElementsRegex = /(?:<style(?=[ >])[^>]*>[\s\S]*<\/style>)|(?:<(:?link|meta|base)[^>]*>)/gi,
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| 247 | encodedElementsRegex = /<cke:encoded>([^<]*)<\/cke:encoded>/gi;
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| 248 |
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| 249 | var protectElementNamesRegex = /(<\/?)((?:object|embed|param|html|body|head|title)[^>]*>)/gi,
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| 250 | unprotectElementNamesRegex = /(<\/?)cke:((?:html|body|head|title)[^>]*>)/gi;
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| 251 |
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| 252 | var protectSelfClosingRegex = /<cke:(param|embed)([^>]*?)\/?>(?!\s*<\/cke:\1)/gi;
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| 253 |
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| 254 | function protectAttributes( html )
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| 255 | {
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| 256 | return html.replace( protectAttributeRegex, '$& _cke_saved_$1' );
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| 257 | }
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| 258 |
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| 259 | function protectElements( html )
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| 260 | {
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| 261 | return html.replace( protectElementsRegex, function( match )
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| 262 | {
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| 263 | return '<cke:encoded>' + encodeURIComponent( match ) + '</cke:encoded>';
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| 264 | });
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| 265 | }
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| 266 |
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| 267 | function unprotectElements( html )
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| 268 | {
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| 269 | return html.replace( encodedElementsRegex, function( match, encoded )
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| 270 | {
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| 271 | return decodeURIComponent( encoded );
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| 272 | });
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| 273 | }
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| 274 |
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| 275 | function protectElementsNames( html )
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| 276 | {
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| 277 | return html.replace( protectElementNamesRegex, '$1cke:$2');
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| 278 | }
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| 279 |
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| 280 | function unprotectElementNames( html )
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| 281 | {
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| 282 | return html.replace( unprotectElementNamesRegex, '$1$2' );
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| 283 | }
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| 284 |
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| 285 | function protectSelfClosingElements( html )
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| 286 | {
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| 287 | return html.replace( protectSelfClosingRegex, '<cke:$1$2></cke:$1>' );
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| 288 | }
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| 289 |
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| 290 | function protectRealComments( html )
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| 291 | {
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| 292 | return html.replace( /<!--(?!{cke_protected})[\s\S]+?-->/g, function( match )
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| 293 | {
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| 294 | return '<!--' + protectedSourceMarker +
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| 295 | '{C}' +
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| 296 | encodeURIComponent( match ).replace( /--/g, '%2D%2D' ) +
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| 297 | '-->';
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| 298 | });
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| 299 | }
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| 300 |
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| 301 | function unprotectRealComments( html )
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| 302 | {
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| 303 | return html.replace( /<!--\{cke_protected\}\{C\}([\s\S]+?)-->/g, function( match, data )
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| 304 | {
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| 305 | return decodeURIComponent( data );
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| 306 | });
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| 307 | }
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| 308 |
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| 309 | function protectSource( data, protectRegexes )
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| 310 | {
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| 311 | var protectedHtml = [],
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| 312 | tempRegex = /<\!--\{cke_temp(comment)?\}(\d*?)-->/g;
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| 313 |
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| 314 | var regexes =
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| 315 | [
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| 316 | // Script tags will also be forced to be protected, otherwise
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| 317 | // IE will execute them.
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| 318 | ( /<script[\s\S]*?<\/script>/gi ),
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| 319 |
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| 320 | // <noscript> tags (get lost in IE and messed up in FF).
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| 321 | /<noscript[\s\S]*?<\/noscript>/gi
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| 322 | ]
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| 323 | .concat( protectRegexes );
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| 324 |
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| 325 | // First of any other protection, we must protect all comments
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| 326 | // to avoid loosing them (of course, IE related).
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| 327 | // Note that we use a different tag for comments, as we need to
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| 328 | // transform them when applying filters.
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| 329 | data = data.replace( (/<!--[\s\S]*?-->/g), function( match )
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| 330 | {
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| 331 | return '<!--{cke_tempcomment}' + ( protectedHtml.push( match ) - 1 ) + '-->';
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| 332 | });
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| 333 |
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| 334 | for ( var i = 0 ; i < regexes.length ; i++ )
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| 335 | {
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| 336 | data = data.replace( regexes[i], function( match )
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| 337 | {
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| 338 | match = match.replace( tempRegex, // There could be protected source inside another one. (#3869).
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| 339 | function( $, isComment, id )
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| 340 | {
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| 341 | return protectedHtml[ id ];
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| 342 | }
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| 343 | );
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| 344 | return '<!--{cke_temp}' + ( protectedHtml.push( match ) - 1 ) + '-->';
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| 345 | });
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| 346 | }
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| 347 | data = data.replace( tempRegex, function( $, isComment, id )
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| 348 | {
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| 349 | return '<!--' + protectedSourceMarker +
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| 350 | ( isComment ? '{C}' : '' ) +
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| 351 | encodeURIComponent( protectedHtml[ id ] ).replace( /--/g, '%2D%2D' ) +
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| 352 | '-->';
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| 353 | }
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| 354 | );
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| 355 | return data;
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| 356 | }
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| 357 |
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| 358 | CKEDITOR.plugins.add( 'htmldataprocessor',
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| 359 | {
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| 360 | requires : [ 'htmlwriter' ],
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| 361 |
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| 362 | init : function( editor )
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| 363 | {
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| 364 | var dataProcessor = editor.dataProcessor = new CKEDITOR.htmlDataProcessor( editor );
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| 365 |
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| 366 | dataProcessor.writer.forceSimpleAmpersand = editor.config.forceSimpleAmpersand;
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| 367 |
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| 368 | dataProcessor.dataFilter.addRules( defaultDataFilterRules );
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| 369 | dataProcessor.dataFilter.addRules( defaultDataBlockFilterRules );
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| 370 | dataProcessor.htmlFilter.addRules( defaultHtmlFilterRules );
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| 371 | dataProcessor.htmlFilter.addRules( defaultHtmlBlockFilterRules );
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| 372 | }
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| 373 | });
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| 374 |
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| 375 | CKEDITOR.htmlDataProcessor = function( editor )
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| 376 | {
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| 377 | this.editor = editor;
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| 378 |
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| 379 | this.writer = new CKEDITOR.htmlWriter();
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| 380 | this.dataFilter = new CKEDITOR.htmlParser.filter();
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| 381 | this.htmlFilter = new CKEDITOR.htmlParser.filter();
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| 382 | };
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| 383 |
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| 384 | CKEDITOR.htmlDataProcessor.prototype =
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| 385 | {
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| 386 | toHtml : function( data, fixForBody )
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| 387 | {
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| 388 | // The source data is already HTML, but we need to clean
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| 389 | // it up and apply the filter.
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| 390 |
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| 391 | data = protectSource( data, this.editor.config.protectedSource );
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| 392 |
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| 393 | // Before anything, we must protect the URL attributes as the
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| 394 | // browser may changing them when setting the innerHTML later in
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| 395 | // the code.
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| 396 | data = protectAttributes( data );
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| 397 |
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| 398 | // Protect elements than can't be set inside a DIV. E.g. IE removes
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| 399 | // style tags from innerHTML. (#3710)
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| 400 | data = protectElements( data );
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| 401 |
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| 402 | // Certain elements has problem to go through DOM operation, protect
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| 403 | // them by prefixing 'cke' namespace. (#3591)
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| 404 | data = protectElementsNames( data );
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| 405 |
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| 406 | // All none-IE browsers ignore self-closed custom elements,
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| 407 | // protecting them into open-close. (#3591)
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| 408 | data = protectSelfClosingElements( data );
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| 409 |
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| 410 | // Call the browser to help us fixing a possibly invalid HTML
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| 411 | // structure.
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| 412 | var div = new CKEDITOR.dom.element( 'div' );
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| 413 | // Add fake character to workaround IE comments bug. (#3801)
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| 414 | div.setHtml( 'a' + data );
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| 415 | data = div.getHtml().substr( 1 );
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| 416 |
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| 417 | // Unprotect "some" of the protected elements at this point.
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| 418 | data = unprotectElementNames( data );
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| 419 |
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| 420 | data = unprotectElements( data );
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| 421 |
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| 422 | // Restore the comments that have been protected, in this way they
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| 423 | // can be properly filtered.
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| 424 | data = unprotectRealComments( data );
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| 425 |
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| 426 | // Now use our parser to make further fixes to the structure, as
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| 427 | // well as apply the filter.
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| 428 | var fragment = CKEDITOR.htmlParser.fragment.fromHtml( data, fixForBody ),
|
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| 429 | writer = new CKEDITOR.htmlParser.basicWriter();
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| 430 |
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| 431 | fragment.writeHtml( writer, this.dataFilter );
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| 432 | data = writer.getHtml( true );
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| 433 |
|
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| 434 | // Protect the real comments again.
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| 435 | data = protectRealComments( data );
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| 436 |
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| 437 | return data;
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| 438 | },
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| 439 |
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| 440 | toDataFormat : function( html, fixForBody )
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| 441 | {
|
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| 442 | var writer = this.writer,
|
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| 443 | fragment = CKEDITOR.htmlParser.fragment.fromHtml( html, fixForBody );
|
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| 444 |
|
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| 445 | writer.reset();
|
|---|
| 446 |
|
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| 447 | fragment.writeHtml( writer, this.htmlFilter );
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| 448 |
|
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| 449 | return writer.getHtml( true );
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| 450 | }
|
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| 451 | };
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| 452 | })();
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| 453 |
|
|---|
| 454 | /**
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|---|
| 455 | * Whether to force using "&" instead of "&amp;" in elements attributes
|
|---|
| 456 | * values. It's not recommended to change this setting for compliance with the
|
|---|
| 457 | * W3C XHTML 1.0 standards
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|---|
| 458 | * (<a href="http://www.w3.org/TR/xhtml1/#C_12">C.12, XHTML 1.0</a>).
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|---|
| 459 | * @type Boolean
|
|---|
| 460 | * @default false
|
|---|
| 461 | * @example
|
|---|
| 462 | * config.forceSimpleAmpersand = false;
|
|---|
| 463 | */
|
|---|
| 464 | CKEDITOR.config.forceSimpleAmpersand = false;
|
|---|
