MxWeiXinPF.Web/obj/Release/Package/PackageTmp/weixin/ggk/js/wScratchPad.js

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/******************************************
 * Websanova.com
 *
 * Resources for web entrepreneurs
 *
 * @author          Websanova
 * @copyright       Copyright (c) 2012 Websanova.
 * @license         This wScratchPad jQuery plug-in is dual licensed under the MIT and GPL licenses.
 * @link            http://www.websanova.com
 * @github			http://github.com/websanova/wScratchPad
 * @version         Version 1.4.2
 *
 ******************************************/
(function($)
{
	$.fn.wScratchPad = function(option, settings)
	{
		if(typeof option === 'object')
		{
			settings = option;
		}
		else if(typeof option == 'string')
		{
			var values = [];

			var elements = this.each(function()
			{
				var data = $(this).data('_wScratchPad');

				if(data)
				{
					if(option === 'reset') { data.reset(); }
					else if(option === 'clear') { data.clear(); }
					else if(option === 'enabled') { data.enabled = settings === true; }
					else if($.fn.wScratchPad.defaultSettings[option] !== undefined)
					{
						if(settings !== undefined) { data.settings[option] = settings; }
						else { values.push(data.settings[option]); }
					}
				}
			});

			if(values.length === 1) { return values[0]; }
			if(values.length > 0) { return values; }
			else { return elements; }
		}
		
		settings = $.extend({}, $.fn.wScratchPad.defaultSettings, settings || {});

		return this.each(function()
		{
			var elem = $(this);
			var $settings = jQuery.extend(true, {}, settings);

			//test for HTML5 canvas
			var test = document.createElement('canvas');
			if(!test.getContext)
			{
				elem.html("Browser does not support HTML5 canvas, please upgrade to a more modern browser.");
				return false;