phonegap-plugin-barcodescanner-ps
Version:
You can use the BarcodeScanner plugin to scan different types of barcodes (using the device's camera) and get the metadata encoded in them for processing within your application.
213 lines (182 loc) • 5.69 kB
JavaScript
/*
* Copyright 2013-2015 BlackBerry Limited.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var barcodescanner,
resultObjs = {},
readCallback,
_utils = require("../../lib/utils"),
_qr = require('plugin/BarcodeScanner/qrcode.js');
const SMS_URI_ONE = "smsto:",
SMS_URI_TWO = "sms:",
EMAIL_URI = "mailto:",
PHONE_URI = "tel:+1",
SMS_TYPE = "SMS_TYPE",
PHONE_TYPE = "PHONE_TYPE",
EMAIL_TYPE = "EMAIL_TYPE",
TEXT_TYPE = "TEXT_TYPE";
module.exports = {
// methods to start and stop scanning
scan: function (success, fail, args, env) {
var result = new PluginResult(args, env);
resultObjs[result.callbackId] = result;
readCallback = result.callbackId;
var views = qnx.webplatform.getWebViews();
var handle = null;
var group = null;
var z = -1;
for (var i = 0; i < views.length; i++) {
if (views[i].visible && views[i].zOrder > z){
z = views[i].zOrder;
group = views[i].windowGroup;
handle = views[i].jsScreenWindowHandle;
}
}
if (handle !== null) {
var values = { group: group, handle: handle };
barcodescanner.getInstance().startRead(result.callbackId, values);
result.noResult(true);
} else {
result.error("Failed to find window handle", false);
}
},
/*
Method for barcode encoding. Returns base 64 image URI
Currently only creates QRcodes
*/
encode: function (success, fail, args, env) {
var result = new PluginResult(args, env);
values = decodeURIComponent(args[0]);
values = JSON.parse(values);
data = values["data"];
type = values["type"];
if(data == "" || data == undefined){
result.error("Data to be encoded was not specified", false);
return;
}
if(type == "" || type == undefined){
type = TEXT_TYPE;
}
if(type == SMS_TYPE){
var check_one = data.substring(0,6).toLowerCase();
var check_two = data.substring(0,4).toLowerCase();
if(!(check_one == SMS_URI_ONE || check_two == SMS_URI_TWO)){
data = SMS_URI_ONE+data;
}
}else if(type == EMAIL_TYPE){
var check = data.substring(0,7).toLowerCase();
if(check != EMAIL_URI){
data = EMAIL_URI+data;
}
}else if(type == PHONE_TYPE){
var check = data.substring(0,4).toLowerCase();
if(check != PHONE_URI){
data = PHONE_URI+data;
}
}
console.log("Type: "+type + " Data: " + data);
//Make QRcode using qrcode.js
var bdiv = document.createElement('div');
var options = {
text: data,
width: 256,
height: 256,
colorDark : "#000000",
colorLight : "#ffffff",
};
var imageURI = _qr.makeQRcode(bdiv, options);
try{
result.ok(imageURI,false);
}catch(e){
result.error("Failed to encode barcode", false);
}
}
};
JNEXT.BarcodeScanner = function () {
var self = this,
hasInstance = false;
self.getId = function () {
return self.m_id;
};
self.init = function () {
if (!JNEXT.require("libBarcodeScanner")) {
return false;
}
self.m_id = JNEXT.createObject("libBarcodeScanner.BarcodeScannerJS");
if (self.m_id === "") {
return false;
}
JNEXT.registerEvents(self);
};
// ************************
// Enter your methods here
// ************************
// Fired by the Event framework (used by asynchronous callbacks)
self.onEvent = function (strData) {
var arData = strData.split(" "),
callbackId = arData[0],
receivedEvent = arData[1],
data = arData[2],
result = resultObjs[callbackId],
events = ["community.barcodescanner.codefound.native",
"community.barcodescanner.errorfound.native",
"community.barcodescanner.started.native",
"community.barcodescanner.ended.native"];
// Restructures results when codefound has spaces
if(arData.length > 3){
var i;
for(i=3; i<arData.length; i++) {
data += " " + arData[i];
}
}
if (receivedEvent == "community.barcodescanner.codefound.native") {
if (result) {
var parsed = JSON.parse(data);
result.callbackOk(parsed, false);
}
this.stopRead(callbackId);
}
if (receivedEvent == "community.barcodescanner.started.native") {
console.log("Scanning started successfully");
}
if (receivedEvent == "community.barcodescanner.errorfound.native") {
if (result) {
result.callbackError(data, false);
}
}
if(receivedEvent == "community.barcodescanner.ended.native" || receivedEvent == "community.barcodescanner.errorfound.native") {
delete resultObjs[readCallback];
readCallback = null;
}
};
// Thread methods
self.startRead = function (callbackId, handle) {
return JNEXT.invoke(self.m_id, "startRead " + callbackId + " " + JSON.stringify(handle));
};
self.stopRead = function (callbackId) {
return JNEXT.invoke(self.m_id, "stopRead " + callbackId);
};
// ************************
// End of methods to edit
// ************************
self.m_id = "";
self.getInstance = function () {
if (!hasInstance) {
hasInstance = true;
self.init();
}
return self;
};
};
barcodescanner = new JNEXT.BarcodeScanner();