plugeth/ethereal/assets/ext/pre.js
2014-08-14 10:52:13 +02:00

38 lines
889 B
JavaScript

// Helper function for generating pseudo callbacks and sending data to the QML part of the application
function postData(data, cb) {
data._seed = Math.floor(Math.random() * 1000000)
if(cb) {
eth._callbacks[data._seed] = cb;
}
if(data.args === undefined) {
data.args = [];
}
navigator.qt.postMessage(JSON.stringify(data));
}
navigator.qt.onmessage = function(ev) {
var data = JSON.parse(ev.data)
if(data._event !== undefined) {
eth.trigger(data._event, data.data);
} else {
if(data._seed) {
var cb = eth._callbacks[data._seed];
if(cb) {
// Figure out whether the returned data was an array
// array means multiple return arguments (multiple params)
if(data.data instanceof Array) {
cb.apply(this, data.data)
} else {
cb.call(this, data.data)
}
// Remove the "trigger" callback
delete eth._callbacks[ev._seed];
}
}
}
}