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feat(scan): first iteration of full scan view implementation

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This commit is contained in:
Jason Dreyzehner 2016-10-11 02:59:21 -04:00
commit c0d4fbe5bb
5 changed files with 106 additions and 50 deletions
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48
src/js/services/scannerService.js
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@ -8,9 +8,8 @@ angular.module('copayApp.services').service('scannerService', function($log, $ti
var backCamera = true; // the plugin defaults to the back camera
// Initalize known capabilities
var isAvailable = false;
var hasPermission = isDesktop? true: false;
var isAuthorized = false;
var isAvailable = isDesktop? false: true; // assume camera exists on mobile
var hasPermission = isDesktop? true: false; // assume desktop has permission
var isDenied = false;
var isRestricted = false;
var canEnableLight = false;
@ -59,6 +58,7 @@ angular.module('copayApp.services').service('scannerService', function($log, $ti
}
}
var initializeStarted = false;
/**
* If camera access has been granted, pre-initialize the QRScanner. This method
* can be safely called before the scanner is visible to improve perceived
@ -67,27 +67,32 @@ angular.module('copayApp.services').service('scannerService', function($log, $ti
* The `status` of QRScanner is returned to the callback.
*/
this.gentleInitialize = function(callback) {
if(initializeStarted){
QRScanner.getStatus(function(status){
_completeInitialization(status, callback);
});
return;
}
initializeStarted = true;
$log.debug('Trying to pre-initialize QRScanner.');
if(!isDesktop){
QRScanner.getStatus(function(status){
_checkCapabilities(status);
if(status.authorized){
$log.debug('Camera permission already granted.');
_initalize(callback);
initialize(callback);
} else {
$log.debug('QRScanner not authorized, waiting to initalize.');
if(typeof callback === "function"){
callback && callback(status);
}
_completeInitialization(status, callback);
}
});
} else {
$log.debug('Camera permission assumed on desktop.');
_initalize(callback);
initialize(callback);
}
};
function _initalize(callback){
function initialize(callback){
$log.debug('Initializing scanner...');
QRScanner.prepare(function(err, status){
if(err){
@ -103,19 +108,25 @@ angular.module('copayApp.services').service('scannerService', function($log, $ti
}
});
}
this.initialize = initialize;
// This could be much cleaner with a Promise API
// (needs a polyfill for some platforms)
var initializeCompleted = false;
function _completeInitialization(status, callback){
_checkCapabilities(status);
$rootScope.$emit('scannerServiceInitialized');
initializeCompleted = true;
callback && callback(status);
$rootScope.$emit('scannerServiceInitialized');
if(typeof callback === "function"){
callback(status);
}
}
this.isInitialized = function(){
return initializeCompleted;
}
this.initializeStarted = function(){
return initializeStarted;
}
var nextHide = null;
var nextDestroy = null;
@ -132,7 +143,9 @@ angular.module('copayApp.services').service('scannerService', function($log, $ti
$log.debug('Activating scanner...');
QRScanner.show(function(status){
_checkCapabilities(status);
callback(status);
if(typeof callback === "function"){
callback(status);
}
});
if(nextHide !== null){
$timeout.cancel(nextHide);
@ -183,6 +196,12 @@ angular.module('copayApp.services').service('scannerService', function($log, $ti
QRScanner.destroy();
}
this.reinitialize = function(callback){
initializeCompleted = false;
QRScanner.destroy();
initialize(callback);
}
/**
* Toggle the device light (if available).
*
@ -228,4 +247,9 @@ angular.module('copayApp.services').service('scannerService', function($log, $ti
callback(status);
});
};
this.openSettings = function() {
$log.debug('Attempting to open device settings...');
QRScanner.openSettings();
};
});