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/*
Copyright (c) 2003-2012, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.html or http://ckeditor.com/license
*/
CKEDITOR.plugins.add( 'removeformat',
{
requires : [ 'selection' ],
init : function( editor )
{
editor.addCommand( 'removeFormat', CKEDITOR.plugins.removeformat.commands.removeformat );
editor.ui.addButton( 'RemoveFormat',
{
label : editor.lang.removeFormat,
command : 'removeFormat'
});
editor._.removeFormat = { filters: [] };
}
});
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( ',' ) );
var filter = CKEDITOR.plugins.removeformat.filter;
var ranges = editor.getSelection().getRanges( 1 ),
iterator = ranges.createIterator(),
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 = new CKEDITOR.dom.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;
// Cache the next node to be processed. Do it now, because
// currentNode may be removed.
var nextNode = currentNode.getNextSourceNode( false, CKEDITOR.NODE_ELEMENT );
// This node must not be a fake element.
if ( !( currentNode.getName() == 'img'
&& currentNode.data( 'cke-realelement' ) )
&& 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 );
}
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 )
{
var filters = editor._.removeFormat.filters;
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 <b>removeFormat</b> command,
* Note: Only available with the existence of 'removeformat' plugin.
* @since 3.3
* @param {Function} func The function to be called, which will be passed a {CKEDITOR.dom.element} element to test.
* @example
* // Don't remove empty span
* editor.addRemoveFormatFilter.push( function( element )
* {
* return !( element.is( 'span' ) && CKEDITOR.tools.isEmpty( element.getAttributes() ) );
* });
*/
CKEDITOR.editor.prototype.addRemoveFormatFilter = function( func )
{
this._.removeFormat.filters.push( func );
};
/**
* A comma separated list of elements to be removed when executing the "remove
" format" command. Note that only inline elements are allowed.
* @type String
* @default 'b,big,code,del,dfn,em,font,i,ins,kbd,q,samp,small,span,strike,strong,sub,sup,tt,u,var'
* @example
*/
CKEDITOR.config.removeFormatTags = 'b,big,code,del,dfn,em,font,i,ins,kbd,q,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.
* @type String
* @default 'class,style,lang,width,height,align,hspace,valign'
* @example
*/
CKEDITOR.config.removeFormatAttributes = 'class,style,lang,width,height,align,hspace,valign';
/**
* Fired after an element was cleaned by the removeFormat plugin.
* @name CKEDITOR.editor#removeFormatCleanup
* @event
* @param {Object} data.element The element that was cleaned up.
*/
........