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

CKEDITOR.plugins.add( 'styles',
{
	requires : [ 'selection' ],
	init : function( editor )
	{
		// This doesn't look like correct, but it's the safest way to proper
		// pass the disableReadonlyStyling configuration to the style system
		// without having to change any method signature in the API. (#6103)
		editor.on( 'contentDom', function()
			{
				editor.document.setCustomData( 'cke_includeReadonly', !editor.config.disableReadonlyStyling );
			});
	}
});

/**
 * Registers a function to be called whenever the selection position changes in the
 * editing area. The current state is passed to the function. The possible
 * states are {@link CKEDITOR.TRISTATE_ON} and {@link CKEDITOR.TRISTATE_OFF}.
 * @param {CKEDITOR.style} style The style to be watched.
 * @param {Function} callback The function to be called.
 * @example
 * // Create a style object for the <b> element.
 * var style = new CKEDITOR.style( { element : 'b' } );
 * var editor = CKEDITOR.instances.editor1;
 * editor.attachStyleStateChange( style, function( state )
 *     {
 *         if ( state == CKEDITOR.TRISTATE_ON )
 *             alert( 'The current state for the B element is ON' );
 *         else
 *             alert( 'The current state for the B element is OFF' );
 *     });
 */
CKEDITOR.editor.prototype.attachStyleStateChange = function( style, callback )
{
	// Try to get the list of attached callbacks.
	var styleStateChangeCallbacks = this._.styleStateChangeCallbacks;

	// If it doesn't exist, it means this is the first call. So, let's create
	// all the structure to manage the style checks and the callback calls.
	if ( !styleStateChangeCallbacks )
	{
		// Create the callbacks array.
		styleStateChangeCallbacks = this._.styleStateChangeCallbacks = [];

		// Attach to the selectionChange event, so we can check the styles at
		// that point.
		this.on( 'selectionChange', function( ev )
			{
				// Loop throw all registered callbacks.
				for ( var i = 0 ; i < styleStateChangeCallbacks.length ; i++ )
				{
					var callback = styleStateChangeCallbacks[ i ];

					// Check the current state for the style defined for that