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59 lines
1.6 KiB
JavaScript
59 lines
1.6 KiB
JavaScript
const fs = require("fs");
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const ioctl = require("ioctl");
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const uinput = require("./uinput");
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const { O_NONBLOCK, O_WRONLY } = fs.constants;
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class Simulator {
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constructor({ name, vendor, product, version }, event_names) {
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this.fd = fs.openSync("/dev/uinput", O_WRONLY | O_NONBLOCK);
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const bustype = 0x3; // USB
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const buff = Buffer.alloc(1116);
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buff.fill(0);
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buff.write(name, 0, 80);
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buff.writeUInt16LE(bustype, 80);
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buff.writeUInt16LE(vendor, 82);
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buff.writeUInt16LE(product, 84);
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buff.writeUInt16LE(version, 86);
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fs.writeSync(this.fd, buff, 0, buff.length, null);
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ioctl(this.fd, uinput.UI_SET_EVBIT, uinput.EV_KEY);
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for (let event_name of event_names) {
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console.log("registering event", event_name, uinput[event_name]);
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ioctl(this.fd, uinput.UI_SET_KEYBIT, uinput[event_name]);
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}
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ioctl(this.fd, uinput.UI_DEV_CREATE, 0);
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}
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simulateEvent({ key_name, direction }) {
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//usage: simulateEvent({key_name: "KEY_A", direction: "down" | "up"});
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var ev = Buffer.alloc(24);
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ev.fill(0);
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var tv_sec = Math.round(Date.now() / 1000),
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tv_usec = Math.round((Date.now() % 1000) * 1000),
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type = 0x01, // EV_KEY,
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code = uinput[key_name],
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value = direction == "down" ? 1 : 0;
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ev.writeInt32LE(tv_sec, 0);
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ev.writeInt32LE(tv_usec, 8);
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ev.writeInt16LE(type, 16);
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ev.writeInt16LE(code, 18);
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ev.writeInt32LE(value, 20);
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var ev_sync_report = Buffer.alloc(24);
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ev_sync_report.fill(0);
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ev_sync_report.writeInt32LE(tv_sec, 0);
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ev_sync_report.writeInt32LE(tv_usec, 8);
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fs.writeSync(this.fd, ev, 0, ev.length, null);
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fs.writeSync(this.fd, ev_sync_report, 0, ev_sync_report.length, null);
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}
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}
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module.exports = Simulator;
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