144 lines
4.2 KiB
JavaScript
Executable file
144 lines
4.2 KiB
JavaScript
Executable file
/*
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Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved.
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For licensing, see LICENSE.html or http://ckeditor.com/license
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*/
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/**
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* @stylesheetParser plugin.
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*/
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(function()
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{
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// We want to extract only the elements with classes defined in the stylesheets:
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function parseClasses( aRules, skipSelectors, validSelectors )
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{
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// aRules are just the different rules in the style sheets
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// We want to merge them and them split them by commas, so we end up with only
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// the selectors
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var s = aRules.join(' ');
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// Remove selectors splitting the elements, leave only the class selector (.)
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s = s.replace( /(,|>|\+|~)/g, ' ' );
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// Remove attribute selectors: table[border="0"]
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s = s.replace( /\[[^\]]*/g, '' );
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// Remove Ids: div#main
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s = s.replace( /#[^\s]*/g, '' );
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// Remove pseudo-selectors and pseudo-elements: :hover :nth-child(2n+1) ::before
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s = s.replace( /\:{1,2}[^\s]*/g, '' );
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s = s.replace( /\s+/g, ' ' );
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var aSelectors = s.split( ' ' ),
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aClasses = [];
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for ( var i = 0; i < aSelectors.length ; i++ )
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{
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var selector = aSelectors[ i ];
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if ( validSelectors.test( selector ) && !skipSelectors.test( selector ) )
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{
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// If we still don't know about this one, add it
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if ( CKEDITOR.tools.indexOf( aClasses, selector ) == -1 )
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aClasses.push( selector );
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}
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}
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return aClasses;
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}
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function LoadStylesCSS( theDoc, skipSelectors, validSelectors )
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{
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var styles = [],
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// It will hold all the rules of the applied stylesheets (except those internal to CKEditor)
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aRules = [],
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i;
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for ( i = 0; i < theDoc.styleSheets.length; i++ )
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{
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var sheet = theDoc.styleSheets[ i ],
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node = sheet.ownerNode || sheet.owningElement;
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// Skip the internal stylesheets
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if ( node.getAttribute( 'data-cke-temp' ) )
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continue;
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// Exclude stylesheets injected by extensions
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if ( sheet.href && sheet.href.substr(0, 9) == 'chrome://' )
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continue;
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var sheetRules = sheet.cssRules || sheet.rules;
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for ( var j = 0; j < sheetRules.length; j++ )
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aRules.push( sheetRules[ j ].selectorText );
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}
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var aClasses = parseClasses( aRules, skipSelectors, validSelectors );
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// Add each style to our "Styles" collection.
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for ( i = 0; i < aClasses.length; i++ )
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{
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var oElement = aClasses[ i ].split( '.' ),
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element = oElement[ 0 ].toLowerCase(),
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sClassName = oElement[ 1 ];
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styles.push( {
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name : element + '.' + sClassName,
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element : element,
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attributes : {'class' : sClassName}
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});
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}
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return styles;
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}
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// Register a plugin named "stylesheetparser".
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CKEDITOR.plugins.add( 'stylesheetparser',
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{
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requires: [ 'styles' ],
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onLoad : function()
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{
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var obj = CKEDITOR.editor.prototype;
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obj.getStylesSet = CKEDITOR.tools.override( obj.getStylesSet, function( org )
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{
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return function( callback )
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{
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var self = this;
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org.call( this, function( definitions )
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{
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// Rules that must be skipped
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var skipSelectors = self.config.stylesheetParser_skipSelectors || ( /(^body\.|^\.)/i ),
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// Rules that are valid
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validSelectors = self.config.stylesheetParser_validSelectors || ( /\w+\.\w+/ );
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callback( ( self._.stylesDefinitions = definitions.concat( LoadStylesCSS( self.document.$, skipSelectors, validSelectors ) ) ) );
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});
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};
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});
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}
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});
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})();
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/**
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* Regular Expression to check if a css rule must be skipped by
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* the stylesheet parser plugin (so it's ignored and not available)
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* @name CKEDITOR.config.stylesheetParser_skipSelectors
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* @type RegExp
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* @default /(^body\.|^\.)/i
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* @since 3.6
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* @example
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* // Ignore rules for body, caption, only a class or classes starting with "high".
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* config.stylesheetParser_skipSelectors = /(^body\.|^caption\.|\.high|^\.)/i;
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*/
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/**
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* Regular Expression to check if a css rule must be allowed by
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* the stylesheet parser plugin
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* @name CKEDITOR.config.stylesheetParser_validSelectors
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* @type RegExp
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* @default /\w+\.\w+/
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* @since 3.6
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* @example
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* // Add only rules for p and span elements.
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* config.stylesheetParser_validSelectors = /\^(p|span)\.\w+/;
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*/
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