SalesSystemOnline/ckeditor_3.6/ckeditor/_source/plugins/tabletools/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
*/

(function()
{
	var cellNodeRegex = /^(?:td|th)$/;

	function getSelectedCells( selection )
	{
		// Walker will try to split text nodes, which will make the current selection
		// invalid. So save bookmarks before doing anything.
		var bookmarks = selection.createBookmarks();

		var ranges = selection.getRanges();
		var retval = [];
		var database = {};

		function moveOutOfCellGuard( node )
		{
			// Apply to the first cell only.
			if ( retval.length > 0 )
				return;

			// If we are exiting from the first </td>, then the td should definitely be
			// included.
			if ( node.type == CKEDITOR.NODE_ELEMENT && cellNodeRegex.test( node.getName() )
					&& !node.getCustomData( 'selected_cell' ) )
			{
				CKEDITOR.dom.element.setMarker( database, node, 'selected_cell', true );
				retval.push( node );
			}
		}

		for ( var i = 0 ; i < ranges.length ; i++ )
		{
			var range = ranges[ i ];

			if ( range.collapsed )
			{
				// Walker does not handle collapsed ranges yet - fall back to old API.
				var startNode = range.getCommonAncestor();
				var nearestCell = startNode.getAscendant( 'td', true ) || startNode.getAscendant( 'th', true );
				if ( nearestCell )
					retval.push( nearestCell );
			}
			else
			{
				var walker = new CKEDITOR.dom.walker( range );
				var node;
				walker.guard = moveOutOfCellGuard;

				while ( ( node = walker.next() ) )
				{
					// If may be possible for us to have a range like this:
					// <td>^1</td><td>^2</td>
					// The 2nd td shouldn't be included.
					//
					// So we have to take care to include a td we've entered only when we've