SalesSystemOnline/ckeditor_3.6/ckeditor/_source/plugins/domiterator/plugin.js

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/*
Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.html or http://ckeditor.com/license
*/

/**
 * @file DOM iterator, which iterates over list items, lines and paragraphs.
 */

CKEDITOR.plugins.add( 'domiterator' );

(function()
{
	/**
	 * @name CKEDITOR.dom.iterator
	 */
	function iterator( range )
	{
		if ( arguments.length < 1 )
			return;

		this.range = range;
		this.forceBrBreak = 0;

		// Whether include <br>s into the enlarged range.(#3730).
		this.enlargeBr = 1;
		this.enforceRealBlocks = 0;

		this._ || ( this._ = {} );
	}

	var beginWhitespaceRegex = /^[\r\n\t ]+$/,
		// Ignore bookmark nodes.(#3783)
		bookmarkGuard = CKEDITOR.dom.walker.bookmark( false, true ),
		whitespacesGuard = CKEDITOR.dom.walker.whitespaces( true ),
		skipGuard = function( node ) { return bookmarkGuard( node ) && whitespacesGuard( node ); };

	// Get a reference for the next element, bookmark nodes are skipped.
	function getNextSourceNode( node, startFromSibling, lastNode )
	{
		var next = node.getNextSourceNode( startFromSibling, null, lastNode );
		while ( !bookmarkGuard( next ) )
			next = next.getNextSourceNode( startFromSibling, null, lastNode );
		return next;
	}

	iterator.prototype = {
		getNextParagraph : function( blockTag )
		{
			// The block element to be returned.
			var block;

			// The range object used to identify the paragraph contents.
			var range;

			// Indicats that the current element in the loop is the last one.
			var isLast;

			// Indicate at least one of the range boundaries is inside a preformat block.
			var touchPre;