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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(),
// Retrieve block
//
// Either supply a number or a string. Type is determent for the lookup method
// string - Retrieves the block by looking up the hash
// number - Retrieves the block by looking up the block number
getBlock: function(numberOrHash, cb) {
var func;
if(typeof numberOrHash == "string") {
func = "getBlockByHash"
} else {
func = "getBlockByNumber"
}
postData({call: func, args: [numberOrHash]}, cb)
},
// Create transaction
//
// Creates a transaction with the current account
// If no recipient is set, the Ethereum API will see it as a contract creation
createTx: function(recipient, value, gas, gasPrice, data, cb) {
postData({call: "createTx", args: [recipient, value, gas, gasPrice, data]}, 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];
}
}
}
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