ethereal/assets/ethereum.js


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// 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;
    }

    navigator.qt.postMessage(JSON.stringify(data));
}

// Main Ethereum library
window.eth = {
    prototype: Object(),

    send: function(cb) {
        document.getElementById("out").innerHTML = "clicked";
        postData({message: "Hello world"}, cb);
    }
}
window.eth._callbacks = {}

function debug(/**/) {
    var args = arguments;
    var msg = ""
    for(var i=0; i<args.length; i++){
        if(typeof args[i] == "object") {
            msg += " " + JSON.stringify(args[i])
        } else {
            msg += args[i]
        }
    }

    document.getElementById("debug").innerHTML += "<br>" + msg
}

navigator.qt.onmessage = function(ev) {
    var data = JSON.parse(ev.data)

    if(data._seed) {
        var cb = eth._callbacks[data._seed];
        if(cb) {
            // Call the callback
            cb(data.data);
            // Remove the "trigger" callback
            delete eth._callbacks[ev._seed];
        }
    }
}