mes/WebContent/resource/zebraBrowserPrint/zebraPrint.js

var selected_printer = null;
var default_printer = null;
var available_printers = null;
var resolutionCookie = getCookie("resolution");
function setup_web_print(callback){
	selected_printer = null;
	default_printer = null;
	available_printers = null;
	var combo_printers = new Array();
	BrowserPrint.getDefaultDevice('printer', function(printer) {
         default_printer = printer;
		if ((printer != null) && (printer.connection != undefined)) {
			selected_printer = printer;
		}
		BrowserPrint.getLocalDevices(function(printers) {
			available_printers = printers;
			var printers_available = false;
			if (printers != undefined) {
				for (var i = 0; i < printers.length; i++) {
						var print = new Object();
						print.display = printers[i].uid;
						print.value = printers[i].uid;
						combo_printers.push(print);
						printers_available = true;
					}
			}
			if (!printers_available) {
				showError("No Zebra Printers could be found!");
				return;
			} else if (selected_printer == null) {
				onPrinterSelected();
			}
			callback.call(null,combo_printers,selected_printer);
		}, undefined, 'printer');
	}, function(error_response) {
		showBrowserPrintNotFound();
	})
};

function sendData(caller,printer,dpi,params) {
	for (var i = 0; i < available_printers.length; i++) {
		if(available_printers[i].uid = printer){
			selected_printer = available_printers[i];
		}
	}
	checkPrinterStatus(function(text) {
		if (text == "Ready to Print") {
			if (dpi != resolutionCookie) {
				SetCookie("resolution", dpi);
			}
			Ext.Ajax.request({
	    		url : basePath +'api/pda/print/zplPrint.action',
				params: {
					caller:caller,
					dpi:dpi,
					data: unescape(escape(Ext.JSON.encode(params)))
				},
				method : 'post',
				timeout: 3600,
				callback : function(options,success,response){
					var res = new Ext.decode(response.responseText);
					if(res.success){
						selected_printer.send(res.data);
					}else if(res.exceptionInfo){
						var str = res.exceptionInfo;
						showError(str);return;
					}
				}
    	    });
		} else {
			printerError(text);
		}
	});
};

function checkPrinterStatus(finishedFunction) {
	selected_printer.sendThenRead("~HQES", function(text) {
		var that = this;
		var statuses = new Array();
		statuses.push("Ready to Print");
		finishedFunction(statuses.join());
		/*		
		var statuses = new Array();
		var ok = false;
		var is_error = text.charAt(70);
		var media = text.charAt(88);
		var head = text.charAt(87);
		var pause = text.charAt(84);
		// check each flag that prevents printing
		if (is_error == '0') {
			ok = true;
			statuses.push("Ready to Print");
		}
		if (media == '1')
			statuses.push("Paper out");
		if (media == '2')
			statuses.push("Ribbon Out");
		if (media == '4')
			statuses.push("Media Door Open");
		if (media == '8')
			statuses.push("Cutter Fault");
		if (head == '1')
			statuses.push("Printhead Overheating");
		if (head == '2')
			statuses.push("Motor Overheating");
		if (head == '4')
			statuses.push("Printhead Fault");
		if (head == '8')
			statuses.push("Incorrect Printhead");
		if (pause == '1')
			statuses.push("Printer Paused");
		if ((!ok) && (statuses.Count == 0))
			statuses.push("Error: Unknown Error");
		finishedFunction(statuses.join());*/
	}, printerError);
};

function onPrinterSelected() {
	selected_printer = available_printers[0];
};

function trySetupAgain() {
	setup_web_print();
};

function showBrowserPrintNotFound() {
	showError("An error occured while attempting to connect to your Zebra Printer. You may not have Zebra Browser Print installed, or it may not be running. Install Zebra Browser Print, or start the Zebra Browser Print Service, and try again.");

};
function printerError(text) {
	showError("An error occurred while printing. Please try again."+ text);
};