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