131 lines
3.1 KiB
JavaScript
131 lines
3.1 KiB
JavaScript
'use strict';
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angular.module('copayApp.controllers').controller('scannerController', function($scope, $timeout, storageService, $ionicModal, platformInfo) {
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// QR code Scanner
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var video;
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var canvas;
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var $video;
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var context;
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var localMediaStream;
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var prevResult;
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var scanTimer;
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var _scan = function(evt) {
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if (localMediaStream) {
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context.drawImage(video, 0, 0, 300, 225);
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try {
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qrcode.decode();
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} catch (e) {
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//qrcodeError(e);
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}
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}
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scanTimer = $timeout(_scan, 800);
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};
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var _scanStop = function() {
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$timeout.cancel(scanTimer);
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if (localMediaStream && localMediaStream.active) {
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var localMediaStreamTrack = localMediaStream.getTracks();
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for (var i = 0; i < localMediaStreamTrack.length; i++) {
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localMediaStreamTrack[i].stop();
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}
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} else {
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try {
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localMediaStream.stop();
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} catch (e) {
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// Older Chromium not support the STOP function
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};
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}
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localMediaStream = null;
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video.src = '';
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};
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qrcode.callback = function(data) {
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if (prevResult != data) {
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prevResult = data;
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return;
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}
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_scanStop();
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$scope.cancel();
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$scope.onScan({
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data: data
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});
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};
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var _successCallback = function(stream) {
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video.src = (window.URL && window.URL.createObjectURL(stream)) || stream;
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localMediaStream = stream;
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video.play();
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$timeout(_scan, 1000);
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};
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var _videoError = function(err) {
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$scope.cancel();
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};
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var setScanner = function() {
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navigator.getUserMedia = navigator.getUserMedia ||
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navigator.webkitGetUserMedia || navigator.mozGetUserMedia ||
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navigator.msGetUserMedia;
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window.URL = window.URL || window.webkitURL ||
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window.mozURL || window.msURL;
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};
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$scope.init = function() {
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if (platformInfo.isCordova) scannerInit();
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else checkTips();
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};
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function checkTips() {
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//TODO addapt tips to the new QR plugin (mobile)
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storageService.getScanTipsAccepted(function(err, accepted) {
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if (err) $log.warn(err);
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if (accepted) {
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scannerInit();
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return;
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}
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$timeout(function() {
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$ionicModal.fromTemplateUrl('views/modals/scan-tips.html', {
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scope: $scope
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}).then(function(modal) {
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$scope.scanTipsModal = modal;
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$scope.scanTipsModal.show();
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});
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}, 1000);
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});
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};
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$scope.$on('TipsModalClosed', function(event) {
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scannerInit();
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});
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function scannerInit() {
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setScanner();
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$timeout(function() {
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if ($scope.beforeScan) {
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$scope.beforeScan();
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}
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canvas = document.getElementById('qr-canvas');
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context = canvas.getContext('2d');
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video = document.getElementById('qrcode-scanner-video');
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$video = angular.element(video);
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canvas.width = 300;
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canvas.height = 225;
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context.clearRect(0, 0, 300, 225);
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navigator.getUserMedia({
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video: true
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}, _successCallback, _videoError);
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}, 500);
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};
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$scope.cancel = function() {
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_scanStop();
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$scope.scannerModal.hide();
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$scope.scannerModal.remove();
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};
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});
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