https://www.holzkirchen-ufr.de/_Resources/Static/Packages/DigiPubl…/JavaScript/jquery.qrcode.js?bust=279fcf5e

1(function( $ ){
2	$.fn.qrcode = function(options) {
3		// if options is string, 
4		if( typeof options === 'string' ){
5			options	= { text: options };
6		}
7
8		// set default values
9		// typeNumber < 1 for automatic calculation
10		options	= $.extend( {}, {
11			render		: "canvas",
12			width		: 256,
13			height		: 256,
14			typeNumber	: -1,
15			correctLevel	: QRErrorCorrectLevel.H,
16                        background      : "#ffffff",
17                        foreground      : "#000000"
18		}, options);
19
20		var createCanvas	= function(){
21			// create the qrcode itself
22			var qrcode	= new QRCode(options.typeNumber, options.correctLevel);
23			qrcode.addData(options.text);
24			qrcode.make();
25
26			// create canvas element
27			var canvas	= document.createElement('canvas');
28			canvas.width	= options.width;
29			canvas.height	= options.height;
30			var ctx		= canvas.getContext('2d');
31
32			// compute tileW/tileH based on options.width/options.height
33			var tileW	= options.width  / qrcode.getModuleCount();
34			var tileH	= options.height / qrcode.getModuleCount();
35
36			// draw in the canvas
37			for( var row = 0; row < qrcode.getModuleCount(); row++ ){
38				for( var col = 0; col < qrcode.getModuleCount(); col++ ){
39					ctx.fillStyle = qrcode.isDark(row, col) ? options.foreground : options.background;
40					var w = (Math.ceil((col+1)*tileW) - Math.floor(col*tileW));
41					var h = (Math.ceil((row+1)*tileH) - Math.floor(row*tileH));
42					ctx.fillRect(Math.round(col*tileW),Math.round(row*tileH), w, h);  
43				}	
44			}
45			// return just built canvas
46			return canvas;
47		}
48
49		// from Jon-Carlos Rivera (https://github.com/imbcmdth)
50		var createTable	= function(){
51			// create the qrcode itself
52			var qrcode	= new QRCode(options.typeNumber, options.correctLevel);
53			qrcode.addData(options.text);
54			qrcode.make();
55			
56			// create table element
57			var $table	= $('<table></table>')
58				.css("width", options.width+"px")
59				.css("height", options.height+"px")
60				.css("border", "0px")
61				.css("border-collapse", "collapse")
62				.css('background-color', options.background);
63		  
64			// compute tileS percentage
65			var tileW	= options.width / qrcode.getModuleCount();
66			var tileH	= options.height / qrcode.getModuleCount();
67
68			// draw in the table
69			for(var row = 0; row < qrcode.getModuleCount(); row++ ){
70				var $row = $('<tr></tr>').css('height', tileH+"px").appendTo($table);
71				
72				for(var col = 0; col < qrcode.getModuleCount(); col++ ){
73					$('<td></td>')
74						.css('width', tileW+"px")
75						.css('background-color', qrcode.isDark(row, col) ? options.foreground : options.background)
76						.appendTo($row);
77				}	
78			}
79			// return just built canvas
80			return $table;
81		}
82  
83
84		return this.each(function(){
85			var element	= options.render == "canvas" ? createCanvas() : createTable();
86			$(element).appendTo(this);
87		});
88	};
89})( jQuery );