Printing with Cordova, ZBTPrinter plugin , JsBarcode, Jquery and html2canvas

gistfile1.txt

    // Extract from my printing strategy with Cordova and my Zbtprinter plugin fork
    // https://github.com/devnieL/zbtprinter
    
    var printer = {
        address : "[MAC ADDRESS]"
    }
    
    $.get('./view/Printing/Templates/Receipt.html', function(template) {

        function textToBase64Barcode(text) {
            var canvas = document.createElement("canvas");
            JsBarcode(canvas, text, {
                displayValues: false
            });
            return canvas.toDataURL("image/png");
        }

        var vars = {
            driver: "Daniel Flores",
            barcode: textToBase64Barcode("xxx")
        };

        var rendered = Mustache.render(template, vars);

        $('<iframe id="print"/>')
            .appendTo(document.body)
            .contents().find('body').html(rendered);

        html2canvas($("#print").contents().find('body'), {
            onrendered: function(canvas) {
                var myImage = canvas.toDataURL("image/png");
                myImage = myImage.substring(22, myImage.length);

                var parts = 10;
                var len = myImage.length;
                var lenByPart = Math.ceil(myImage.length / 10);
                var data = [];

                for (var i = 0; i < parts; i++) {
                    data.push(myImage.substring(lenByPart * i, lenByPart * i + lenByPart));
                }

                if (typeof cordova != "undefined") {

                    console.log("ZBTPrinter printing ...");

                    cordova.plugins.zbtprinter.print(printer.address, data,
                        function(success) {
                            console.log("ZBTPrinter priting success ... ", success);
                            $("#print").remove();
                            return callback();
                        },
                        function(fail) {
                            console.log("ZBTPrinter printing error ... ", fail);
                            $("#print").remove();
                            return callback({
                                message: "No se puedo realizar la impresión, inténtelo nuevamente. Detalles : '" + fail + ".'"
                            });
                        });

                } else {
                    window.open("data:image/png;base64," + data.join(""));
                    $("#print").remove();
                    return callback();
                }

            }
        });

    });