merge upstream

1 files changed, 58 insertions, 0 deletions

diff --git a/ethereal/assets/ext/pre.js b/ethereal/assets/ext/pre.js
new file mode 100644
index 000000000..ca520f152
--- /dev/null
+++ b/ethereal/assets/ext/pre.js
@@ -0,0 +1,58 @@
+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]
+		}
+	}
+
+	postData({call:"debug", args:[msg]})
+	document.getElementById("debug").innerHTML += "<br>" + msg
+}
+
+// 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];
+			}
+		}
+	}
+}
+
+window.onerror = function(message, file, lineNumber, column, errorObj) {
+	debug(file, message, lineNumber+":"+column, errorObj);
+
+	return false;
+}