67 lines
1.6 KiB
JavaScript
67 lines
1.6 KiB
JavaScript
const intercept_link_redirects = false;
|
|
|
|
function main() {
|
|
let root = window.document.getElementById("main");
|
|
if (root != null) {
|
|
window.ipc = new IPC(root);
|
|
}
|
|
}
|
|
|
|
class IPC {
|
|
constructor(root) {
|
|
window.interpreter = new JSChannel();
|
|
window.interpreter.initialize(root);
|
|
const ws = new WebSocket(WS_ADDR);
|
|
ws.binaryType = "arraybuffer";
|
|
|
|
function ping() {
|
|
ws.send("__ping__");
|
|
}
|
|
|
|
ws.onopen = () => {
|
|
// we ping every 30 seconds to keep the websocket alive
|
|
setInterval(ping, 30000);
|
|
ws.send(window.interpreter.serializeIpcMessage("initialize"));
|
|
};
|
|
|
|
ws.onerror = (err) => {
|
|
// todo: retry the connection
|
|
};
|
|
|
|
ws.onmessage = (message) => {
|
|
const u8view = new Uint8Array(message.data);
|
|
const binaryFrame = u8view[0] == 1;
|
|
const messageData = message.data.slice(1)
|
|
// The first byte tells the shim if this is a binary of text frame
|
|
if (binaryFrame) {
|
|
// binary frame
|
|
window.interpreter.run_from_bytes(messageData);
|
|
}
|
|
else {
|
|
// text frame
|
|
|
|
let decoder = new TextDecoder("utf-8");
|
|
|
|
// Using decode method to get string output
|
|
let str = decoder.decode(messageData);
|
|
// Ignore pongs
|
|
if (str != "__pong__") {
|
|
const event = JSON.parse(str);
|
|
switch (event.type) {
|
|
case "query":
|
|
Function("Eval", `"use strict";${event.data};`)();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
this.ws = ws;
|
|
}
|
|
|
|
postMessage(msg) {
|
|
this.ws.send(msg);
|
|
}
|
|
}
|
|
|
|
main(); |