text: ﻿/**
   * @license Copyright (c) 2003-2014, CKSource - Frederico Knabben. All rights reserved.
   * For licensing, see LICENSE.md or http://ckeditor.com/license
   */
  
  CKEDITOR.plugins.add( 'removeformat', {
  	lang: 'af,ar,bg,bn,bs,ca,cs,cy,da,de,el,en,en-au,en-ca,en-gb,eo,es,et,eu,fa,fi,fo,fr,fr-ca,gl,gu,he,hi,hr,hu,id,is,it,ja,ka,km,ko,ku,lt,lv,mk,mn,ms,nb,nl,no,pl,pt,pt-br,ro,ru,si,sk,sl,sq,sr,sr-latn,sv,th,tr,tt,ug,uk,vi,zh,zh-cn', // %REMOVE_LINE_CORE%
  	icons: 'removeformat', // %REMOVE_LINE_CORE%
  	hidpi: true, // %REMOVE_LINE_CORE%
  	init: function( editor ) {
  		editor.addCommand( 'removeFormat', CKEDITOR.plugins.removeformat.commands.removeformat );
  		editor.ui.addButton && editor.ui.addButton( 'RemoveFormat', {
  			label: editor.lang.removeformat.toolbar,
  			command: 'removeFormat',
  			toolbar: 'cleanup,10'
  		} );
  	}
  } );
  
  CKEDITOR.plugins.removeformat = {
  	commands: {
  		removeformat: {
  			exec: function( editor ) {
  				var tagsRegex = editor._.removeFormatRegex || ( editor._.removeFormatRegex = new RegExp( '^(?:' + editor.config.removeFormatTags.replace( /,/g, '|' ) + ')$', 'i' ) );
  
  				var removeAttributes = editor._.removeAttributes || ( editor._.removeAttributes = editor.config.removeFormatAttributes.split( ',' ) ),
  					filter = CKEDITOR.plugins.removeformat.filter,
  					ranges = editor.getSelection().getRanges(),
  					iterator = ranges.createIterator(),
  					isElement = function( element ) {
  						return element.type == CKEDITOR.NODE_ELEMENT;
  					},
  					range;
  
  				while ( ( range = iterator.getNextRange() ) ) {
  					if ( !range.collapsed )
  						range.enlarge( CKEDITOR.ENLARGE_ELEMENT );
  
  					// Bookmark the range so we can re-select it after processing.
  					var bookmark = range.createBookmark(),
  						// The style will be applied within the bookmark boundaries.
  						startNode = bookmark.startNode,
  						endNode = bookmark.endNode,
  						currentNode;
  
  					// We need to check the selection boundaries (bookmark spans) to break
  					// the code in a way that we can properly remove partially selected nodes.
  					// For example, removing a <b> style from
  					//		<b>This is [some text</b> to show <b>the] problem</b>
  					// ... where [ and ] represent the selection, must result:
  					//		<b>This is </b>[some text to show the]<b> problem</b>
  					// The strategy is simple, we just break the partial nodes before the
  					// removal logic, having something that could be represented this way:
  					//		<b>This is </b>[<b>some text</b> to show <b>the</b>]<b> problem</b>
  
  					var breakParent = function( node ) {
  							// Let's start checking the start boundary.
  							var path = editor.elementPath( node ),
  								pathElements = path.elements;
  
  							for ( var i = 1, pathElement; pathElement = pathElements[ i ]; i++ ) {
  								if ( pathElement.equals( path.block ) || pathElement.equals( path.blockLimit ) )
  									break;
  
  								// If this element can be removed (even partially).
  								if ( tagsRegex.test( pathElement.getName() ) && filter( editor, pathElement ) )
  									node.breakParent( pathElement );
  							}
  						};
  
  					breakParent( startNode );
  					if ( endNode ) {
  						breakParent( endNode );
  
  						// Navigate through all nodes between the bookmarks.
  						currentNode = startNode.getNextSourceNode( true, CKEDITOR.NODE_ELEMENT );
  
  						while ( currentNode ) {
  							// If we have reached the end of the selection, stop looping.
  							if ( currentNode.equals( endNode ) )
  								break;
  
  							if ( currentNode.isReadOnly() ) {
  								// In case of non-editable we're skipping to the next sibling *elmenet*.
  
  								// We need to be aware that endNode can be nested within current non-editable.
  								// This condition tests if currentNode (non-editable) contains endNode. If it does
  								// then we should break the filtering
  								if ( currentNode.getPosition( endNode ) & CKEDITOR.POSITION_CONTAINS ) {
  									break;
  								}
  
  								currentNode = currentNode.getNext( isElement );
  								continue;
  							}
  
  							// Cache the next node to be processed. Do it now, because
  							// currentNode may be removed.
  							var nextNode = currentNode.getNextSourceNode( false, CKEDITOR.NODE_ELEMENT ),
  								isFakeElement = currentNode.getName() == 'img' && currentNode.data( 'cke-realelement' );
  
  							// This node must not be a fake element, and must not be read-only.
  							if ( !isFakeElement && filter( editor, currentNode ) ) {
  								// Remove elements nodes that match with this style rules.
  								if ( tagsRegex.test( currentNode.getName() ) )
  									currentNode.remove( 1 );
  								else {
  									currentNode.removeAttributes( removeAttributes );
  									editor.fire( 'removeFormatCleanup', currentNode );
  								}
  							}
  
  							currentNode = nextNode;
  						}
  					}
  
  					range.moveToBookmark( bookmark );
  				}
  
  				// The selection path may not changed, but we should force a selection
  				// change event to refresh command states, due to the above attribution change. (#9238)
  				editor.forceNextSelectionCheck();
  				editor.getSelection().selectRanges( ranges );
  			}
  		}
  	},
  
  	// Perform the remove format filters on the passed element.
  	// @param {CKEDITOR.editor} editor
  	// @param {CKEDITOR.dom.element} element
  	filter: function( editor, element ) {
  		// If editor#addRemoveFotmatFilter hasn't been executed yet value is not initialized.
  		var filters = editor._.removeFormatFilters || [];
  		for ( var i = 0; i < filters.length; i++ ) {
  			if ( filters[ i ]( element ) === false )
  				return false;
  		}
  		return true;
  	}
  };
  
  /**
   * Add to a collection of functions to decide whether a specific
   * element should be considered as formatting element and thus
   * could be removed during `removeFormat` command.
   *
   * **Note:** Only available with the existence of `removeformat` plugin.
   *
   *		// Don't remove empty span.
   *		editor.addRemoveFormatFilter( function( element ) {
   *			return !( element.is( 'span' ) && CKEDITOR.tools.isEmpty( element.getAttributes() ) );
   *		} );
   *
   * @since 3.3
   * @member CKEDITOR.editor
   * @param {Function} func The function to be called, which will be passed a {CKEDITOR.dom.element} element to test.
   */
  CKEDITOR.editor.prototype.addRemoveFormatFilter = function( func ) {
  	if ( !this._.removeFormatFilters )
  		this._.removeFormatFilters = [];
  
  	this._.removeFormatFilters.push( func );
  };
  
  /**
   * A comma separated list of elements to be removed when executing the `remove
   * format` command. Note that only inline elements are allowed.
   *
   * @cfg
   * @member CKEDITOR.config
   */
  CKEDITOR.config.removeFormatTags = 'b,big,cite,code,del,dfn,em,font,i,ins,kbd,q,s,samp,small,span,strike,strong,sub,sup,tt,u,var';
  
  /**
   * A comma separated list of elements attributes to be removed when executing
   * the `remove format` command.
   *
   * @cfg
   * @member CKEDITOR.config
   */
  CKEDITOR.config.removeFormatAttributes = 'class,style,lang,width,height,align,hspace,valign';
  
  /**
   * Fired after an element was cleaned by the removeFormat plugin.
   *
   * @event removeFormatCleanup
   * @member CKEDITOR.editor
   * @param {CKEDITOR.editor} editor This editor instance.
   * @param data
   * @param {CKEDITOR.dom.element} data.element The element that was cleaned up.
   */
  