SalesSystemOnline/ckeditor_3.6/ckeditor/_source/plugins/justify/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 Justify commands.
 */

(function()
{
	function getState( editor, path )
	{
		var firstBlock = path.block || path.blockLimit;

		if ( !firstBlock || firstBlock.getName() == 'body' )
			return CKEDITOR.TRISTATE_OFF;

		return ( getAlignment( firstBlock, editor.config.useComputedState ) == this.value ) ?
			CKEDITOR.TRISTATE_ON :
			CKEDITOR.TRISTATE_OFF;
	}

	function getAlignment( element, useComputedState )
	{
		useComputedState = useComputedState === undefined || useComputedState;

		var align;
		if ( useComputedState )
			align = element.getComputedStyle( 'text-align' );
		else
		{
			while ( !element.hasAttribute || !( element.hasAttribute( 'align' ) || element.getStyle( 'text-align' ) ) )
			{
				var parent = element.getParent();
				if ( !parent )
					break;
				element = parent;
			}
			align = element.getStyle( 'text-align' ) || element.getAttribute( 'align' ) || '';
		}

		align && ( align = align.replace( /-moz-|-webkit-|start|auto/i, '' ) );

		!align && useComputedState && ( align = element.getComputedStyle( 'direction' ) == 'rtl' ? 'right' : 'left' );

		return align;
	}

	function onSelectionChange( evt )
	{
		if ( evt.editor.readOnly )
			return;

		var command = evt.editor.getCommand( this.name );
		command.state = getState.call( this, evt.editor, evt.data.path );
		command.fire( 'state' );
	}

	function justifyCommand( editor, name, value )