[3019] | 1 | /*
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| 2 | Copyright (c) 2003-2009, 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 |
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| 15 | // Return the last non-space child node of the block (#4344).
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| 16 | function lastNoneSpaceChild( block )
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| 17 | {
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| 18 | var lastIndex = block.children.length,
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| 19 | last = block.children[ lastIndex - 1 ];
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| 20 | while( last && last.type == CKEDITOR.NODE_TEXT && !CKEDITOR.tools.trim( last.value ) )
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| 21 | last = block.children[ --lastIndex ];
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| 22 | return last;
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| 23 | }
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| 24 |
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| 25 | function trimFillers( block, fromSource )
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| 26 | {
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| 27 | // If the current node is a block, and if we're converting from source or
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| 28 | // we're not in IE then search for and remove any tailing BR node.
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| 29 | //
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| 30 | // Also, any at the end of blocks are fillers, remove them as well.
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| 31 | // (#2886)
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| 32 | var children = block.children, lastChild = lastNoneSpaceChild( block );
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| 33 | if ( lastChild )
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| 34 | {
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| 35 | if ( ( fromSource || !CKEDITOR.env.ie ) && lastChild.type == CKEDITOR.NODE_ELEMENT && lastChild.name == 'br' )
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| 36 | children.pop();
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| 37 | if ( lastChild.type == CKEDITOR.NODE_TEXT && tailNbspRegex.test( lastChild.value ) )
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| 38 | children.pop();
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| 39 | }
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| 40 | }
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| 41 |
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| 42 | function blockNeedsExtension( block )
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| 43 | {
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| 44 | var lastChild = lastNoneSpaceChild( block );
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| 45 | return !lastChild || lastChild.type == CKEDITOR.NODE_ELEMENT && lastChild.name == 'br';
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| 46 | }
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| 47 |
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| 48 | function extendBlockForDisplay( block )
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| 49 | {
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| 50 | trimFillers( block, true );
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| 51 |
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| 52 | if ( blockNeedsExtension( block ) )
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| 53 | {
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| 54 | if ( CKEDITOR.env.ie )
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| 55 | block.add( new CKEDITOR.htmlParser.text( '\xa0' ) );
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| 56 | else
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| 57 | block.add( new CKEDITOR.htmlParser.element( 'br', {} ) );
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| 58 | }
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| 59 | }
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| 60 |
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| 61 | function extendBlockForOutput( block )
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| 62 | {
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| 63 | trimFillers( block );
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| 64 |
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| 65 | if ( blockNeedsExtension( block ) )
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| 66 | block.add( new CKEDITOR.htmlParser.text( '\xa0' ) );
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| 67 | }
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| 68 |
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| 69 | var dtd = CKEDITOR.dtd;
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| 70 |
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| 71 | // Find out the list of block-like tags that can contain <br>.
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| 72 | var blockLikeTags = CKEDITOR.tools.extend( {}, dtd.$block, dtd.$listItem, dtd.$tableContent );
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| 73 | for ( var i in blockLikeTags )
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| 74 | {
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| 75 | if ( ! ( 'br' in dtd[i] ) )
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| 76 | delete blockLikeTags[i];
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| 77 | }
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| 78 | // We just avoid filler in <pre> right now.
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| 79 | // TODO: Support filler for <pre>, line break is also occupy line height.
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| 80 | delete blockLikeTags.pre;
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| 81 | var defaultDataFilterRules =
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| 82 | {
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| 83 | attributeNames :
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| 84 | [
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| 85 | // Event attributes (onXYZ) must not be directly set. They can become
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| 86 | // active in the editing area (IE|WebKit).
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| 87 | [ ( /^on/ ), '_cke_pa_on' ]
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| 88 | ]
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| 89 | };
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| 90 |
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| 91 | var defaultDataBlockFilterRules = { elements : {} };
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| 92 |
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| 93 | for ( i in blockLikeTags )
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| 94 | defaultDataBlockFilterRules.elements[ i ] = extendBlockForDisplay;
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| 95 |
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| 96 | var defaultHtmlFilterRules =
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| 97 | {
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| 98 | elementNames :
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| 99 | [
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| 100 | // Remove the "cke:" namespace prefix.
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| 101 | [ ( /^cke:/ ), '' ],
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| 102 |
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| 103 | // Ignore <?xml:namespace> tags.
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| 104 | [ ( /^\?xml:namespace$/ ), '' ]
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| 105 | ],
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| 106 |
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| 107 | attributeNames :
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| 108 | [
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| 109 | // Attributes saved for changes and protected attributes.
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| 110 | [ ( /^_cke_(saved|pa)_/ ), '' ],
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| 111 |
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| 112 | // All "_cke" attributes are to be ignored.
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| 113 | [ ( /^_cke.*/ ), '' ]
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| 114 | ],
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| 115 |
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| 116 | elements :
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| 117 | {
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| 118 | $ : function( element )
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| 119 | {
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| 120 | // Remove duplicated attributes - #3789.
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| 121 | var attribs = element.attributes;
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| 122 |
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| 123 | if ( attribs )
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| 124 | {
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| 125 | var attributeNames = [ 'name', 'href', 'src' ],
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| 126 | savedAttributeName;
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| 127 | for ( var i = 0 ; i < attributeNames.length ; i++ )
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| 128 | {
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| 129 | savedAttributeName = '_cke_saved_' + attributeNames[ i ];
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| 130 | savedAttributeName in attribs && ( delete attribs[ attributeNames[ i ] ] );
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| 131 | }
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| 132 | }
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| 133 | },
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| 134 |
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| 135 | embed : function( element )
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| 136 | {
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| 137 | var parent = element.parent;
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| 138 |
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| 139 | // If the <embed> is child of a <object>, copy the width
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| 140 | // and height attributes from it.
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| 141 | if ( parent && parent.name == 'object' )
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| 142 | {
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| 143 | var parentWidth = parent.attributes.width,
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| 144 | parentHeight = parent.attributes.height;
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| 145 | parentWidth && ( element.attributes.width = parentWidth );
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| 146 | parentHeight && ( element.attributes.height = parentHeight );
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| 147 | }
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| 148 | },
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| 149 | // Restore param elements into self-closing.
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| 150 | param : function( param )
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| 151 | {
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| 152 | param.children = [];
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| 153 | param.isEmpty = true;
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| 154 | return param;
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| 155 | },
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| 156 |
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| 157 | // Remove empty link but not empty anchor.(#3829)
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| 158 | a : function( element )
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| 159 | {
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| 160 | if ( !( element.children.length ||
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| 161 | element.attributes.name ||
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| 162 | element.attributes._cke_saved_name ) )
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| 163 | {
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| 164 | return false;
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| 165 | }
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| 166 | }
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| 167 | },
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| 168 |
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| 169 | attributes :
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| 170 | {
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| 171 | 'class' : function( value, element )
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| 172 | {
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| 173 | // Remove all class names starting with "cke_".
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| 174 | return CKEDITOR.tools.ltrim( value.replace( /(?:^|\s+)cke_[^\s]*/g, '' ) ) || false;
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| 175 | }
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| 176 | },
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| 177 |
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| 178 | comment : function( contents )
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| 179 | {
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| 180 | if ( contents.substr( 0, protectedSourceMarker.length ) == protectedSourceMarker )
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| 181 | return new CKEDITOR.htmlParser.cdata( decodeURIComponent( contents.substr( protectedSourceMarker.length ) ) );
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| 182 |
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| 183 | return contents;
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| 184 | }
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| 185 | };
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| 186 |
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| 187 | var defaultHtmlBlockFilterRules = { elements : {} };
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| 188 |
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| 189 | for ( i in blockLikeTags )
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| 190 | defaultHtmlBlockFilterRules.elements[ i ] = extendBlockForOutput;
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| 191 |
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| 192 | if ( CKEDITOR.env.ie )
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| 193 | {
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| 194 | // IE outputs style attribute in capital letters. We should convert
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| 195 | // them back to lower case.
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| 196 | defaultHtmlFilterRules.attributes.style = function( value, element )
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| 197 | {
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| 198 | return value.toLowerCase();
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| 199 | };
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| 200 | }
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| 201 |
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| 202 | var protectAttributeRegex = /<(?:a|area|img|input).*?\s((?:href|src|name)\s*=\s*(?:(?:"[^"]*")|(?:'[^']*')|(?:[^ "'>]+)))/gi;
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| 203 |
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| 204 | function protectAttributes( html )
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| 205 | {
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| 206 | return html.replace( protectAttributeRegex, '$& _cke_saved_$1' );
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| 207 | }
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| 208 |
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| 209 | var protectStyleTagsRegex = /<(style)(?=[ >])[^>]*>[^<]*<\/\1>/gi;
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| 210 | var encodedTagsRegex = /<cke:encoded>([^<]*)<\/cke:encoded>/gi;
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| 211 | var protectElementNamesRegex = /(<\/?)((?:object|embed|param).*?>)/gi;
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| 212 | var protectSelfClosingRegex = /<cke:param(.*?)\/>/gi;
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| 213 |
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| 214 | function protectStyleTagsMatch( match )
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| 215 | {
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| 216 | return '<cke:encoded>' + encodeURIComponent( match ) + '</cke:encoded>';
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| 217 | }
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| 218 |
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| 219 | function protectStyleTags( html )
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| 220 | {
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| 221 | return html.replace( protectStyleTagsRegex, protectStyleTagsMatch );
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| 222 | }
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| 223 | function protectElementsNames( html )
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| 224 | {
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| 225 | return html.replace( protectElementNamesRegex, '$1cke:$2');
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| 226 | }
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| 227 | function protectSelfClosingElements( html )
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| 228 | {
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| 229 | return html.replace( protectSelfClosingRegex, '<cke:param$1></cke:param>' );
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| 230 | }
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| 231 |
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| 232 | function unprotectEncodedTagsMatch( match, encoded )
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| 233 | {
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| 234 | return decodeURIComponent( encoded );
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| 235 | }
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| 236 |
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| 237 | function unprotectEncodedTags( html )
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| 238 | {
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| 239 | return html.replace( encodedTagsRegex, unprotectEncodedTagsMatch );
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| 240 | }
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| 241 |
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| 242 | function protectSource( data, protectRegexes )
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| 243 | {
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| 244 | var protectedHtml = [],
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| 245 | tempRegex = /<\!--\{cke_temp\}(\d*?)-->/g;
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| 246 | var regexes =
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| 247 | [
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| 248 | // First of any other protection, we must protect all comments
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| 249 | // to avoid loosing them (of course, IE related).
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| 250 | (/<!--[\s\S]*?-->/g),
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| 251 |
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| 252 | // Script tags will also be forced to be protected, otherwise
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| 253 | // IE will execute them.
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| 254 | /<script[\s\S]*?<\/script>/gi,
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| 255 |
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| 256 | // <noscript> tags (get lost in IE and messed up in FF).
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| 257 | /<noscript[\s\S]*?<\/noscript>/gi
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| 258 | ]
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| 259 | .concat( protectRegexes );
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| 260 |
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| 261 | for ( var i = 0 ; i < regexes.length ; i++ )
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| 262 | {
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| 263 | data = data.replace( regexes[i], function( match )
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| 264 | {
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| 265 | match = match.replace( tempRegex, // There could be protected source inside another one. (#3869).
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| 266 | function( $, id )
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| 267 | {
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| 268 | return protectedHtml[ id ];
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| 269 | }
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| 270 | );
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| 271 | return '<!--{cke_temp}' + ( protectedHtml.push( match ) - 1 ) + '-->';
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| 272 | });
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| 273 | }
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| 274 | data = data.replace( tempRegex, function( $, id )
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| 275 | {
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| 276 | return '<!--' + protectedSourceMarker +
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| 277 | encodeURIComponent( protectedHtml[ id ] ).replace( /--/g, '%2D%2D' ) +
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| 278 | '-->';
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| 279 | }
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| 280 | );
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| 281 | return data;
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| 282 | }
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| 283 |
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| 284 | CKEDITOR.plugins.add( 'htmldataprocessor',
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| 285 | {
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| 286 | requires : [ 'htmlwriter' ],
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| 287 |
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| 288 | init : function( editor )
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| 289 | {
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| 290 | var dataProcessor = editor.dataProcessor = new CKEDITOR.htmlDataProcessor( editor );
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| 291 |
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| 292 | dataProcessor.writer.forceSimpleAmpersand = editor.config.forceSimpleAmpersand;
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| 293 |
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| 294 | dataProcessor.dataFilter.addRules( defaultDataFilterRules );
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| 295 | dataProcessor.dataFilter.addRules( defaultDataBlockFilterRules );
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| 296 | dataProcessor.htmlFilter.addRules( defaultHtmlFilterRules );
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| 297 | dataProcessor.htmlFilter.addRules( defaultHtmlBlockFilterRules );
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| 298 | }
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| 299 | });
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| 300 |
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| 301 | CKEDITOR.htmlDataProcessor = function( editor )
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| 302 | {
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| 303 | this.editor = editor;
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| 304 |
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| 305 | this.writer = new CKEDITOR.htmlWriter();
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| 306 | this.dataFilter = new CKEDITOR.htmlParser.filter();
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| 307 | this.htmlFilter = new CKEDITOR.htmlParser.filter();
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| 308 | };
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| 309 |
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| 310 | CKEDITOR.htmlDataProcessor.prototype =
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| 311 | {
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| 312 | toHtml : function( data, fixForBody )
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| 313 | {
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| 314 | // The source data is already HTML, but we need to clean
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| 315 | // it up and apply the filter.
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| 316 |
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| 317 | data = protectSource( data, this.editor.config.protectedSource );
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| 318 |
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| 319 | // Before anything, we must protect the URL attributes as the
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| 320 | // browser may changing them when setting the innerHTML later in
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| 321 | // the code.
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| 322 | data = protectAttributes( data );
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| 323 |
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| 324 | // IE remvoes style tags from innerHTML. (#3710).
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| 325 | if ( CKEDITOR.env.ie )
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| 326 | data = protectStyleTags( data );
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| 327 |
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| 328 | // Certain elements has problem to go through DOM operation, protect
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| 329 | // them by prefixing 'cke' namespace.(#3591)
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| 330 | data = protectElementsNames( data );
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| 331 |
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| 332 | // All none-IE browsers ignore self-closed custom elements,
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| 333 | // protecting them into open-close.(#3591)
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| 334 | data = protectSelfClosingElements( data );
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| 335 |
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| 336 | // Call the browser to help us fixing a possibly invalid HTML
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| 337 | // structure.
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| 338 | var div = document.createElement( 'div' );
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| 339 | // Add fake character to workaround IE comments bug. (#3801)
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| 340 | div.innerHTML = 'a' + data;
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| 341 | data = div.innerHTML.substr( 1 );
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| 342 |
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| 343 | if ( CKEDITOR.env.ie )
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| 344 | data = unprotectEncodedTags( data );
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| 345 |
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| 346 | // Now use our parser to make further fixes to the structure, as
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| 347 | // well as apply the filter.
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| 348 | var fragment = CKEDITOR.htmlParser.fragment.fromHtml( data, fixForBody ),
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| 349 | writer = new CKEDITOR.htmlParser.basicWriter();
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| 350 |
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| 351 | fragment.writeHtml( writer, this.dataFilter );
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| 352 |
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| 353 | return writer.getHtml( true );
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| 354 | },
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| 355 |
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| 356 | toDataFormat : function( html, fixForBody )
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| 357 | {
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| 358 | var writer = this.writer,
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| 359 | fragment = CKEDITOR.htmlParser.fragment.fromHtml( html, fixForBody );
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| 360 |
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| 361 | writer.reset();
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| 362 |
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| 363 | fragment.writeHtml( writer, this.htmlFilter );
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| 364 |
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| 365 | return writer.getHtml( true );
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| 366 | }
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| 367 | };
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| 368 | })();
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| 369 |
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| 370 | /**
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| 371 | * Whether to force using "&" instead of "&amp;" in elements attributes
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| 372 | * values. It's not recommended to change this setting for compliance with the
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| 373 | * W3C XHTML 1.0 standards
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| 374 | * (<a href="http://www.w3.org/TR/xhtml1/#C_12">C.12, XHTML 1.0</a>).
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| 375 | * @type Boolean
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| 376 | * @default false
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| 377 | * @example
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| 378 | * config.forceSimpleAmpersand = false;
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| 379 | */
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| 380 | CKEDITOR.config.forceSimpleAmpersand = false;
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