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Use the same code for the different frontend channels

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This commit is contained in:
yflory
2019-01-11 15:22:52 +01:00
parent 1e672c4a6b
commit 41a1148c17
3 changed files with 103 additions and 38 deletions
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92
www/common/outer/worker-channel.js
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@@ -8,22 +8,30 @@ define([
return Math.random().toString(16).replace('0.', '') + Math.random().toString(16).replace('0.', '');
};
var create = function (onMsg, postMsg, cb, isWorker) {
var create = function (onMsg, postMsg, cb) {
var chanLoaded;
var waitingData;
if (!isWorker) {
chanLoaded = false;
waitingData = [];
onMsg.reg(function (data) {
if (chanLoaded) { return; }
waitingData.push(data);
});
}
var waitingData = [];
var evReady = Util.mkEvent(true);
onMsg.reg(function (msg) {
if (chanLoaded) { return; }
var data = msg.data;
if (data === '_READY') {
postMsg('_READY');
chanLoaded = true;
evReady.fire();
waitingData.forEach(function (d) {
onMsg.fire(d);
});
return;
}
waitingData.push(data);
});
var handlers = {};
var queries = {};
var acks = {};
// list of handlers which are registered from the other side...
var insideHandlers = [];
@@ -32,16 +40,24 @@ define([
var chan = {};
// Send a query. channel.query('Q_SOMETHING', { args: "whatever" }, function (reply) { ... });
// We have a timeout for receiving an ACK, but unlimited time for receiving an answer to the query
chan.query = function (q, content, cb, opts) {
var txid = mkTxid();
opts = opts || {};
var to = opts.timeout || 30000;
var timeout = setTimeout(function () {
delete queries[txid];
//console.log("Timeout making query " + q);
cb('TIMEOUT');
}, to);
queries[txid] = function (data, msg) {
acks[txid] = function (err) {
clearTimeout(timeout);
delete acks[txid];
if (err) {
delete queries[txid];
cb('UNHANDLED');
}
};
queries[txid] = function (data, msg) {
delete queries[txid];
cb(undefined, data.content, msg);
};
@@ -103,10 +119,10 @@ define([
}
insideHandlers.push(content);
});
chan.whenReg('EV_REGISTER_HANDLER', evReady.fire);
//chan.whenReg('EV_REGISTER_HANDLER', evReady.fire);
// Make sure both iframes are ready
var isReady =false;
var isReady = false;
chan.onReady = function (h) {
if (isReady) {
return void h();
@@ -121,29 +137,43 @@ define([
};
onMsg.reg(function (msg) {
if (!chanLoaded) { return; }
if (!msg.data || msg.data === '_READY') { return; }
var data = JSON.parse(msg.data);
if (typeof(data.q) === 'string' && handlers[data.q]) {
handlers[data.q].forEach(function (f) {
f(data || JSON.parse(msg.data), msg);
data = undefined;
});
if (typeof(data.ack) !== "undefined") {
if (acks[data.txid]) { acks[data.txid](!data.ack); }
} else if (typeof(data.q) === 'string') {
if (handlers[data.q]) {
// If this is a "query", send an ack
if (data.txid) {
postMsg(JSON.stringify({
txid: data.txid,
ack: true
}));
}
handlers[data.q].forEach(function (f) {
f(data || JSON.parse(msg.data), msg);
data = undefined;
});
} else {
if (data.txid) {
postMsg(JSON.stringify({
txid: data.txid,
ack: false
}));
}
}
} else if (typeof(data.q) === 'undefined' && queries[data.txid]) {
queries[data.txid](data, msg);
} else {
console.log("DROP Unhandled message");
console.log(msg.data, isWorker);
console.log(msg);
/*console.log("DROP Unhandled message");
console.log(msg.data, window);
console.log(msg);*/
}
});
if (isWorker) {
evReady.fire();
} else {
chanLoaded = true;
waitingData.forEach(function (d) {
onMsg.fire(d);
});
waitingData = [];
}
postMsg('_READY');
cb(chan);
};