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[FIX] point_of_sale: prevent barcode scanner connection loss 

bzr revid: fva@openerp.com-20140127123614-vjrcwgh7s8rs2y2u
This commit is contained in:
Frédéric van der Essen 2014-01-27 13:36:14 +01:00
parent c9879fcd1e
commit 85daaccb61
1 changed files with 40 additions and 23 deletions
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63
addons/point_of_sale/static/src/js/devices.js
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@ -129,6 +129,8 @@ function openerp_pos_devices(instance,module){ //module is instance.point_of_sal
this.set_connection_status('disconnected');
}
},
// connects to the specified url
connect: function(url){
var self = this;
this.connection = new instance.web.Session(undefined,url);
@ -149,35 +151,43 @@ function openerp_pos_devices(instance,module){ //module is instance.point_of_sal
console.error('Could not connect to the Proxy');
});
},
autoconnect: function(opts){
// find a proxy and connects to it. for options see find_proxy
autoconnect: function(options){
var self = this;
this.set_connection_status('connecting',{});
var success = new $.Deferred();
this.find_proxy(opts)
this.find_proxy(options)
.then(function(proxies){
if(proxies.length > 0){
self.connect(proxies[0])
.then(function(){
success.resolve();
},function(){
self.set_connection_status('disconnected');
success.reject();
});
}else{
self.set_connection_status('disconnected');
success.reject();
}
});
return success;
},
// starts a loop that updates the connection status
keepalive: function(){
var self = this;
if(!this.keptalive){
this.keptalive = true;
function status(){
self.connection.rpc('/hw_proxy/status_json',{})
self.connection.rpc('/hw_proxy/status_json',{},{timeout:500})
.then(function(driver_status){
self.set_connection_status('connected',driver_status);
},function(){
self.set_connection_status('disconnected');
if(self.get('status').status !== 'connecting'){
self.set_connection_status('disconnected');
}
}).always(function(){
setTimeout(status,5000);
});
@ -185,6 +195,7 @@ function openerp_pos_devices(instance,module){ //module is instance.point_of_sal
status();
};
},
message : function(name,params){
var callbacks = this.notifications[name] || [];
for(var i = 0; i < callbacks.length; i++){
@ -197,18 +208,15 @@ function openerp_pos_devices(instance,module){ //module is instance.point_of_sal
}
},
test_connection: function(host,timeout){
return $.ajax({
url: host + '/hw_proxy/hello',
method: 'GET',
timeout: timeout || 10000,
});
},
// returns as a deferred a list of valid hosts urls that can be used as proxy.
// options:
// - port: what port to listen to (default 8069)
// - force_ip : limit the search to the specified ip
// - progress(fac) : callback for search progress ( fac in [0,1] )
find_proxy: function(options){
options = options || {};
var self = this;
var port = ':8069';
var port = ':' + (options.port || '8069');
var urls = [];
var found = false;
var proxies = [];
@ -249,8 +257,11 @@ function openerp_pos_devices(instance,module){ //module is instance.point_of_sal
if(!url){
done.resolve();
}
var c = self.test_connection(url, 300)
.done(function(){
var c = $.ajax({
url: url + '/hw_proxy/hello',
method: 'GET',
timeout: 300,
}).done(function(){
found = true;
update_progress();
proxies.push(url);
@ -757,10 +768,10 @@ function openerp_pos_devices(instance,module){ //module is instance.point_of_sal
disconnect: function(){
$('body').off('keypress', this.handler)
},
disconnect_from_proxy: function(){
this.remote_scanning = false;
},
connect_to_proxy: function(){ //FIXME prevent connection losses
// the barcode scanner will listen on the hw_proxy/scanner interface for
// scan events until disconnect_from_proxy is called
connect_to_proxy: function(){
var self = this;
this.remote_scanning = true;
if(this.remote_active >= 1){
@ -769,17 +780,18 @@ function openerp_pos_devices(instance,module){ //module is instance.point_of_sal
this.remote_active = 1;
function waitforbarcode(){
return self.proxy.connection.rpc('/hw_proxy/scanner',{}).then(function(barcode){
self.scan(barcode);
return self.proxy.connection.rpc('/hw_proxy/scanner',{},{timeout:7500})
.then(function(barcode){
if(!self.remote_scanning){
this.remote_active = 0;
self.remote_active = 0;
return;
}
self.scan(barcode);
waitforbarcode();
},
function(){
if(!self.remote_scanning){
this.remote_active = 0;
self.remote_active = 0;
return;
}
setTimeout(waitforbarcode,5000);
@ -787,6 +799,11 @@ function openerp_pos_devices(instance,module){ //module is instance.point_of_sal
}
waitforbarcode();
},
// the barcode scanner will stop listening on the hw_proxy/scanner remote interface
disconnect_from_proxy: function(){
this.remote_scanning = false;
},
});
}