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Set the property autoplay to activate the video on chrome for anroid … #7

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Set the property autoplay to activate the video on chrome for anroid … #7

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d52fd06
Set the property autoplay to activate the video on chrome for anroid …
maximeborges Jul 2, 2015
62bfe0f
Can select anothe source using the ng-video-source parameter
maximeborges Jul 3, 2015
af66f97
update version
maximeborges Jul 3, 2015
2b4d17e
Fix dimensions of the canvas
maximeborges Jul 3, 2015
5aa01aa
Start camera if there is no source specified
maximeborges Jul 6, 2015
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5 changes: 3 additions & 2 deletions bower.json
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Original file line number Diff line number Diff line change
@@ -1,9 +1,10 @@
{
"name": "angular-qr-scanner",
"version": "0.1.0",
"version": "0.2.0",
"homepage": "https://github.com/sembrestels/angular-qr-scanner",
"authors": [
"Sem <[email protected]>"
"Sem <[email protected]>",
"Maxaille <[email protected]>"
],
"description": "QR scanner angular directive",
"main": "./qr-scanner.js",
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2 changes: 1 addition & 1 deletion package.json
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
{
"name": "angular-qr-scanner",
"version": "0.1.0",
"version": "0.2.0",
"devDependencies": {
"grunt": "~0.4.5",
"grunt-contrib-uglify": "~0.9.1",
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174 changes: 102 additions & 72 deletions qr-scanner.js
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Original file line number Diff line number Diff line change
@@ -1,84 +1,114 @@
if (require){
if (!angular) var angular = require('angular');
if (!qrcode) var qrcode = require('jsqrcode');
}

(function() {
'use strict';

angular.module('qrScanner', ["ng"]).directive('qrScanner', ['$interval', '$window', function($interval, $window) {
return {
restrict: 'E',
scope: {
ngSuccess: '&ngSuccess',
ngError: '&ngError',
ngVideoError: '&ngVideoError'
},
link: function(scope, element, attrs) {

window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL;
navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia;

var height = attrs.height || 300;
var width = attrs.width || 250;

var video = $window.document.createElement('video');
video.setAttribute('width', width);
video.setAttribute('height', height);
video.setAttribute('style', '-moz-transform:rotateY(-180deg);-webkit-transform:rotateY(-180deg);transform:rotateY(-180deg);');
var canvas = $window.document.createElement('canvas');
canvas.setAttribute('id', 'qr-canvas');
canvas.setAttribute('width', width);
canvas.setAttribute('height', height);
canvas.setAttribute('style', 'display:none;');

angular.element(element).append(video);
angular.element(element).append(canvas);
var context = canvas.getContext('2d');
var stopScan;

var scan = function() {
if ($window.localMediaStream) {
context.drawImage(video, 0, 0, 307,250);
try {
qrcode.decode();
} catch(e) {
scope.ngError({error: e});
angular.module('qrScanner', [])
.directive('qrScanner', ['$interval', '$window', function($interval, $window) {
return {
restrict: 'E',
scope: {
ngSuccess: '&ngSuccess',
ngError: '&ngError',
ngVideoError: '&ngVideoError',
ngVideoSource: '=ngVideoSource'
},
link: function(scope, element, attrs) {

window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL;
navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia;

var height = attrs.height || 300;
var width = attrs.width || 250;

var video = $window.document.createElement('video');
video.setAttribute('autoplay', true);
video.setAttribute('width', width);
video.setAttribute('height', height);
var canvas = $window.document.createElement('canvas');
canvas.setAttribute('id', 'qr-canvas');
canvas.setAttribute('style', 'display:none;');

angular.element(element).append(video);
angular.element(element).append(canvas);
var context = canvas.getContext('2d');
var stopScan;

var scan = function() {
if ($window.localMediaStream) {
canvas.setAttribute('width', angular.element(video)[0].videoWidth);
canvas.setAttribute('height', angular.element(video)[0].videoHeight);
context.drawImage(video, 0, 0, angular.element(video)[0].videoWidth, angular.element(video)[0].videoHeight);
try {
qrcode.decode();
} catch(e) {
scope.ngError({error: e});
}
}
}
}
};

var successCallback = function(stream) {
video.src = (window.URL && window.URL.createObjectURL(stream)) || stream;
$window.localMediaStream = stream;
var successCallback = function(stream) {
video.src = (window.URL && window.URL.createObjectURL(stream)) || stream;
$window.localMediaStream = stream;

scope.video = video;
video.play();
stopScan = $interval(scan, 500);
}
scope.video = video;
video.play();
stopScan = $interval(scan, 500);
};

// Call the getUserMedia method with our callback functions
if (navigator.getUserMedia) {
navigator.getUserMedia({video: true}, successCallback, function(e) {
scope.ngVideoError({error: e});
});
} else {
scope.ngVideoError({error: 'Native web camera streaming (getUserMedia) not supported in this browser.'});
}
var startVideo = function(source) {
var option;
if (!source) option = true;
else option = {
optional: [{
sourceId: source
}]
};

qrcode.callback = function(data) {
scope.ngSuccess({data: data});
};
// Call the getUserMedia method with our callback functions
if (navigator.getUserMedia) {
navigator.getUserMedia({video: option}, successCallback, function(e) {
scope.ngVideoError({error: e});
});
} else {
scope.ngVideoError({error: 'Native web camera streaming (getUserMedia) not supported in this browser.'});
}

element.bind('$destroy', function() {
if ($window.localMediaStream) {
$window.localMediaStream.stop();
}
if (stopScan) {
$interval.cancel(stopScan);
qrcode.callback = function(data) {
scope.ngSuccess({data: data});
};
};
if(typeof scope.ngVideoSource == 'undefined') {
startVideo(null);
}
});

scope.$watch('ngVideoSource', function(newValue, oldValue) {
if (typeof MediaStreamTrack === 'undefined' ||
typeof MediaStreamTrack.getSources === 'undefined') {
console.log('This browser does not support MediaStreamTrack')
} else {
MediaStreamTrack.getSources(function(sources) {
var videoSources = [];
for (var i = 0, len = sources.length; i<len; i++)
if (sources[i].id == newValue) {
video.pause();
$interval.cancel(stopScan);
startVideo(newValue);
break;
}
});
}
});

element.bind('$destroy', function() {
if ($window.localMediaStream) {
$window.localMediaStream.stop();
}
if (stopScan) {
$interval.cancel(stopScan);
}
});
}
}

}
}]);
})();
]);
})();