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Code Issues 1 Packages Projects Releases Wiki Activity

Pebble: JS proper removal of callbacks (transaction handling)

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This commit is contained in:
Daniele Gobbetti 2017-08-07 18:35:09 +02:00
parent 7475d170a7
commit 868c0543d5
1 changed files with 26 additions and 8 deletions
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34
app/src/main/assets/app_config/js/gadgetbridge_boilerplate.js
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@ -79,6 +79,21 @@ function gbPebble() {
this.configurationURL = null;
this.configurationValues = null;
var self = this;
appMessageCallbackACK = {};
appMessageCallbackNACK = {};
function appMessageCallbackProcessed(transactionId) {
if (appMessageCallbackACK[transactionId]) {
self.removeEventListener("ACK"+transactionId, self.appMessageCallbackACK[transactionId]);
appMessageCallbackACK[transactionId] = undefined;
}
if (appMessageCallbackNACK[transactionId]) {
self.removeEventListener("NACK"+transactionId, self.appMessageCallbackNACK[transactionId]);
appMessageCallbackNACK[transactionId] = undefined;
}
}
self.events = {};
//events processing: see http://stackoverflow.com/questions/10978311/implementing-events-in-my-own-object
self.addEventListener = function(name, handler) {
@ -166,20 +181,23 @@ function gbPebble() {
var transactionId = GBjs.sendAppMessage(JSON.stringify(dict), needsTransaction);
if (needsTransaction) {
if (callbackAck != undefined) {
this.addEventListener("ACK"+transactionId, function(e) {
self.appMessageCallbackACK[transactionId] = function(e) {
// console.log("ACK FOR " + JSON.stringify(e));
callbackAck(e);
self.removeEventListener("ACK"+transactionId);
self.removeEventListener("NACK"+transactionId);
});
self.appMessageCallbackProcessed(transactionId);
};
this.addEventListener("ACK"+transactionId, self.appMessageCallbackACK[transactionId]);
}
if (callbackNack != undefined) {
this.addEventListener("NACK"+transactionId, function(e) {
self.appMessageCallbackNACK[transactionId] = function(e) {
// console.log("NACK FOR " + JSON.stringify(e));
callbackNack(e);
self.removeEventListener("ACK"+transactionId);
self.removeEventListener("NACK"+transactionId);
});
self.appMessageCallbackProcessed(transactionId);
};
this.addEventListener("NACK"+transactionId, self.appMessageCallbackNACK[transactionId]);
}
}
}