Hi
How i can use this code to send PDF file from Xojo.
This code send data to star mobile Printer
var canvas = document.createElement(“canvas”);
canvas.setAttribute(“id”, “canvasPaper”);
canvas.setAttribute(“width”, “576”);
canvas.setAttribute(“height”, “253”);
canvas.style.visibility = “hidden”; // to hide the canvas
canvas.style.display = “none”; // to not ruin the layout of the page
var hidden, visibilityChange;
if (typeof document.hidden !== “undefined”) { // Opera 12.10 and Firefox 18 and later support
hidden = “hidden”;
visibilityChange = “visibilitychange”;
}
else if (typeof document.mozHidden !== “undefined”) {
hidden = “mozHidden”;
visibilityChange = “mozvisibilitychange”;
}
else if (typeof document.msHidden !== “undefined”) {
hidden = “msHidden”;
visibilityChange = “msvisibilitychange”;
}
else if (typeof document.webkitHidden !== “undefined”) {
hidden = “webkitHidden”;
visibilityChange = “webkitvisibilitychange”;
}
var image = “”; // When the page (and only the page) loads, the loadImages function is called.
// once loadImages exits, the scope level “image” variable will overwrite the global variable.
// this allows me to pass it as a parameter when I call my drawCanvas function.
// this is a bit hacky, so hopefully you find a better solution.
// open the Javascript Console and you’ll see my dilemma a bit clearer.
document.addEventListener(“DOMContentLoaded”, loadImages(“images/star.bmp”));
//document.addEventListener(“visibility”, onFocusChanged());
function passPRNT() {
drawCanvas(image);
}
function loadImages(src) {
console.log(“DOMContentLoaded”); // checking
image = new Image();
image.onload = function() {
console.log(“image loaded, hopefully.”); // checking again, this actually fires after the function exits
}
image.onerror = function() {
alert(“Failed to load image.”); // checking again
}
image.src = src;
console.log(“Exiting Function, cross your fingers that your images loaded :|”);
}
function drawCanvas(image) {
if(canvas.getContext) {
var context = canvas.getContext(“2d”);
context.clearRect(0, 0, canvas.width, canvas.height);
context.drawImage(image, 0, 0);
}
var base64URL = canvas.toDataURL();
createImgElement(base64URL);
}
function createImgElement(base64URL) {
var imgElement = document.createElement(“img”);
imgElement.setAttribute(“src”, base64URL);
createImgElementBase64(imgElement.outerHTML);
}
function createImgElementBase64(htmlElement) {
var receipt = encodeURIComponent(htmlElement + document.getElementById(“printData”).innerHTML); // latter portion retrieves HTML from the DOM
buildURLScheme(receipt);
}
function buildURLScheme(encodedReceiptBase64) {
var urlStart = “starpassprnt://v1/print/nopreview?html=”;
//var back = “googlechrome=://”; //Chrome’s URL Scheme for iOS/Android
var back = “http://webprnt.altervista.org/passprnt/result.html”;
//OR
//back = window.location.href;
var urlEnd = "&size=3&back=" + back;
var passprntURL = urlStart + encodedReceiptBase64 + urlEnd;
//window.open(passprntURL, "");
//OR
window.location.href = passprntURL;
//OR
//document.location.assign(passprntURL);
//window.setTimeout(function(){alert("delayed url " + window.location.href);}, 20000);
//this might work to delay the alert long enough to get the URL but only in Safari
}