Initial commit: Electron + React touchscreen kiosk dashboard for Home Assistant
This commit is contained in:
root
177
electron/services/FrigateStreamer.ts
Normal file
177
electron/services/FrigateStreamer.ts
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@@ -0,0 +1,177 @@
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import { spawn, ChildProcess } from 'child_process';
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import { EventEmitter } from 'events';
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export class FrigateStreamer extends EventEmitter {
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private ffmpegProcess: ChildProcess | null = null;
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private isStreaming: boolean = false;
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private restartAttempts: number = 0;
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private readonly MAX_RESTART_ATTEMPTS = 5;
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private restartTimeout: NodeJS.Timeout | null = null;
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async start(rtspOutputUrl: string): Promise<void> {
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if (this.isStreaming) {
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console.log('Already streaming to Frigate');
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return;
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}
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try {
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// Get camera devices
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const videoDevices = await this.getVideoDevices();
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if (videoDevices.length === 0) {
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throw new Error('No video devices found');
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}
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const videoDevice = videoDevices[0]; // Use first available camera
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console.log(`Using video device: ${videoDevice}`);
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// Build FFmpeg command
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const ffmpegArgs = this.buildFfmpegArgs(videoDevice, rtspOutputUrl);
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// Start FFmpeg process
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this.ffmpegProcess = spawn('ffmpeg', ffmpegArgs, {
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stdio: ['ignore', 'pipe', 'pipe'],
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});
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this.ffmpegProcess.stdout?.on('data', (data) => {
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console.log(`FFmpeg stdout: ${data}`);
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});
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this.ffmpegProcess.stderr?.on('data', (data) => {
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// FFmpeg logs to stderr by default
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const message = data.toString();
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if (message.includes('error') || message.includes('Error')) {
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console.error(`FFmpeg error: ${message}`);
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this.emit('error', message);
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}
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});
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this.ffmpegProcess.on('close', (code) => {
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console.log(`FFmpeg process exited with code ${code}`);
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this.isStreaming = false;
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if (code !== 0 && this.restartAttempts < this.MAX_RESTART_ATTEMPTS) {
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this.restartAttempts++;
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console.log(`Restarting FFmpeg (attempt ${this.restartAttempts}/${this.MAX_RESTART_ATTEMPTS})`);
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this.restartTimeout = setTimeout(() => {
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this.start(rtspOutputUrl);
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}, 5000);
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} else if (this.restartAttempts >= this.MAX_RESTART_ATTEMPTS) {
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this.emit('maxRestartsReached');
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}
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});
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this.ffmpegProcess.on('error', (error) => {
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console.error('FFmpeg process error:', error);
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this.emit('error', error);
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});
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this.isStreaming = true;
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this.restartAttempts = 0;
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this.emit('started');
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console.log(`Streaming to ${rtspOutputUrl}`);
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} catch (error) {
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console.error('Failed to start Frigate stream:', error);
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throw error;
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}
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}
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private async getVideoDevices(): Promise<string[]> {
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return new Promise((resolve) => {
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if (process.platform === 'linux') {
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// On Linux, check for /dev/video* devices
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const { exec } = require('child_process');
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exec('ls /dev/video* 2>/dev/null', (error: Error | null, stdout: string) => {
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if (error) {
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resolve([]);
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} else {
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const devices = stdout.trim().split('\n').filter(Boolean);
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resolve(devices);
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}
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});
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} else if (process.platform === 'win32') {
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// On Windows, use DirectShow device listing
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// For simplicity, return default device name
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resolve(['video=Integrated Camera']);
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} else if (process.platform === 'darwin') {
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// On macOS, use AVFoundation
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resolve(['0']); // Device index
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} else {
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resolve([]);
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}
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});
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}
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private buildFfmpegArgs(videoDevice: string, rtspOutputUrl: string): string[] {
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const baseArgs: string[] = [];
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if (process.platform === 'linux') {
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baseArgs.push(
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'-f', 'v4l2',
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'-input_format', 'mjpeg',
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'-framerate', '15',
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'-video_size', '640x480',
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'-i', videoDevice
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);
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} else if (process.platform === 'win32') {
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baseArgs.push(
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'-f', 'dshow',
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'-framerate', '15',
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'-video_size', '640x480',
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'-i', videoDevice
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);
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} else if (process.platform === 'darwin') {
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baseArgs.push(
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'-f', 'avfoundation',
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'-framerate', '15',
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'-video_size', '640x480',
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'-i', videoDevice
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);
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}
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// Output settings for RTSP
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baseArgs.push(
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'-c:v', 'libx264',
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'-preset', 'ultrafast',
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'-tune', 'zerolatency',
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'-profile:v', 'baseline',
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'-level', '3.1',
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'-pix_fmt', 'yuv420p',
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'-g', '30', // Keyframe interval
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'-b:v', '1M',
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'-bufsize', '1M',
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'-f', 'rtsp',
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'-rtsp_transport', 'tcp',
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rtspOutputUrl
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);
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return baseArgs;
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}
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async stop(): Promise<void> {
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if (this.restartTimeout) {
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clearTimeout(this.restartTimeout);
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this.restartTimeout = null;
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}
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if (this.ffmpegProcess) {
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this.ffmpegProcess.kill('SIGTERM');
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// Force kill if still running after 5 seconds
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setTimeout(() => {
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if (this.ffmpegProcess && !this.ffmpegProcess.killed) {
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this.ffmpegProcess.kill('SIGKILL');
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}
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}, 5000);
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this.ffmpegProcess = null;
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}
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this.isStreaming = false;
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this.restartAttempts = 0;
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this.emit('stopped');
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}
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isActive(): boolean {
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return this.isStreaming;
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}
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}
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137
electron/services/MotionDetector.ts
Normal file
137
electron/services/MotionDetector.ts
Normal file
@@ -0,0 +1,137 @@
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import { EventEmitter } from 'events';
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interface MotionDetectorOptions {
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go2rtcUrl: string;
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cameraName: string;
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sensitivityThreshold: number; // % size change to trigger
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checkIntervalMs: number;
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}
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/**
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* Motion detection running in the main process (not throttled by browser).
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* Uses JPEG file size changes as a proxy for motion - more reliable than byte comparison.
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* When significant motion occurs, the JPEG compresses differently and size changes.
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*/
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export class MotionDetector extends EventEmitter {
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private options: MotionDetectorOptions;
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private intervalId: NodeJS.Timeout | null = null;
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private prevSize: number = 0;
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private baselineSize: number = 0;
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private sizeHistory: number[] = [];
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private isProcessing = false;
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private noMotionCount = 0;
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constructor(options: MotionDetectorOptions) {
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super();
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this.options = options;
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}
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start(): void {
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if (this.intervalId) return;
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console.log(`MotionDetector: Starting detection on ${this.options.cameraName}`);
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this.intervalId = setInterval(() => {
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this.checkMotion();
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}, this.options.checkIntervalMs);
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// Do initial checks to establish baseline
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this.checkMotion();
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}
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stop(): void {
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if (this.intervalId) {
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clearInterval(this.intervalId);
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this.intervalId = null;
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}
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this.prevSize = 0;
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this.baselineSize = 0;
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this.sizeHistory = [];
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console.log('MotionDetector: Stopped');
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}
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private async checkMotion(): Promise<void> {
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if (this.isProcessing) return;
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this.isProcessing = true;
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try {
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const frameData = await this.fetchFrame();
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if (!frameData) {
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this.isProcessing = false;
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return;
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}
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const currentSize = frameData.length;
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// Build up history for baseline (first 5 frames)
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if (this.sizeHistory.length < 5) {
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this.sizeHistory.push(currentSize);
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if (this.sizeHistory.length === 5) {
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// Calculate baseline as average of first 5 frames
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this.baselineSize = this.sizeHistory.reduce((a, b) => a + b, 0) / 5;
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console.log(`MotionDetector: Baseline established at ${this.baselineSize} bytes`);
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}
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this.prevSize = currentSize;
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this.isProcessing = false;
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return;
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}
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// Compare to previous frame AND baseline
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const prevDiff = Math.abs(currentSize - this.prevSize);
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const baselineDiff = Math.abs(currentSize - this.baselineSize);
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const prevChangePercent = (prevDiff / this.prevSize) * 100;
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const baselineChangePercent = (baselineDiff / this.baselineSize) * 100;
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// Motion detected if EITHER:
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// 1. Frame-to-frame change is significant (something just moved)
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// 2. Deviation from baseline is significant (scene has changed)
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const motionDetected = prevChangePercent > this.options.sensitivityThreshold ||
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baselineChangePercent > (this.options.sensitivityThreshold * 2);
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if (motionDetected) {
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this.noMotionCount = 0;
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console.log(`MotionDetector: Motion detected (prev=${prevChangePercent.toFixed(1)}% baseline=${baselineChangePercent.toFixed(1)}%)`);
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this.emit('motion');
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} else {
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this.noMotionCount++;
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// Update baseline slowly when no motion (adapt to lighting changes)
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if (this.noMotionCount > 10) {
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this.baselineSize = this.baselineSize * 0.95 + currentSize * 0.05;
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}
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}
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this.prevSize = currentSize;
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} catch (error) {
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console.error('MotionDetector: Error checking motion:', error);
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} finally {
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this.isProcessing = false;
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}
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}
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private async fetchFrame(): Promise<Buffer | null> {
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// Try up to 2 times with a short delay
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for (let attempt = 0; attempt < 2; attempt++) {
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try {
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const url = `${this.options.go2rtcUrl}/api/frame.jpeg?src=${this.options.cameraName}&t=${Date.now()}`;
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const controller = new AbortController();
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const timeoutId = setTimeout(() => controller.abort(), 3000);
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const response = await fetch(url, { signal: controller.signal });
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clearTimeout(timeoutId);
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if (!response.ok) {
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continue;
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}
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const arrayBuffer = await response.arrayBuffer();
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return Buffer.from(arrayBuffer);
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} catch {
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if (attempt === 0) {
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await new Promise(r => setTimeout(r, 500));
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}
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}
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}
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return null;
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}
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}
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170
electron/services/PresenceDetector.ts
Normal file
170
electron/services/PresenceDetector.ts
Normal file
@@ -0,0 +1,170 @@
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import { EventEmitter } from 'events';
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// TensorFlow.js imports - will be loaded dynamically
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let tf: typeof import('@tensorflow/tfjs') | null = null;
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let cocoSsd: typeof import('@tensorflow-models/coco-ssd') | null = null;
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interface Detection {
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class: string;
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score: number;
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bbox: [number, number, number, number];
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}
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export class PresenceDetector extends EventEmitter {
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private model: Awaited<ReturnType<typeof import('@tensorflow-models/coco-ssd').load>> | null = null;
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private video: HTMLVideoElement | null = null;
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private canvas: HTMLCanvasElement | null = null;
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private context: CanvasRenderingContext2D | null = null;
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private stream: MediaStream | null = null;
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private detectionInterval: NodeJS.Timeout | null = null;
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private isRunning: boolean = false;
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private confidenceThreshold: number = 0.6;
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private personDetected: boolean = false;
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private noPersonCount: number = 0;
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private readonly NO_PERSON_THRESHOLD = 5; // Frames without person before clearing
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constructor(confidenceThreshold: number = 0.6) {
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super();
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this.confidenceThreshold = confidenceThreshold;
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}
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async start(): Promise<void> {
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if (this.isRunning) return;
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try {
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// Dynamically import TensorFlow.js
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tf = await import('@tensorflow/tfjs');
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cocoSsd = await import('@tensorflow-models/coco-ssd');
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// Set backend
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await tf.setBackend('webgl');
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await tf.ready();
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// Load COCO-SSD model
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console.log('Loading COCO-SSD model...');
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this.model = await cocoSsd.load({
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base: 'lite_mobilenet_v2', // Faster, lighter model
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});
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console.log('Model loaded');
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// Set up video capture
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await this.setupCamera();
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// Start detection loop
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this.isRunning = true;
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this.startDetectionLoop();
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} catch (error) {
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console.error('Failed to start presence detection:', error);
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throw error;
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}
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}
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private async setupCamera(): Promise<void> {
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try {
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this.stream = await navigator.mediaDevices.getUserMedia({
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video: {
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width: { ideal: 640 },
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height: { ideal: 480 },
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facingMode: 'user',
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},
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audio: false,
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});
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// Create video element
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this.video = document.createElement('video');
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this.video.srcObject = this.stream;
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this.video.autoplay = true;
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this.video.playsInline = true;
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// Create canvas for processing
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this.canvas = document.createElement('canvas');
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this.canvas.width = 640;
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this.canvas.height = 480;
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this.context = this.canvas.getContext('2d');
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// Wait for video to be ready
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await new Promise<void>((resolve) => {
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if (this.video) {
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this.video.onloadedmetadata = () => {
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this.video?.play();
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resolve();
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||||
};
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}
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});
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} catch (error) {
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console.error('Failed to setup camera:', error);
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throw error;
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||||
}
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||||
}
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private startDetectionLoop(): void {
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// Run detection every 500ms
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this.detectionInterval = setInterval(async () => {
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||||
await this.detectPerson();
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}, 500);
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||||
}
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||||
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private async detectPerson(): Promise<void> {
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||||
if (!this.model || !this.video || !this.context || !this.canvas) return;
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||||
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try {
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||||
// Draw current frame to canvas
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||||
this.context.drawImage(this.video, 0, 0, this.canvas.width, this.canvas.height);
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||||
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||||
// Run detection
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const predictions: Detection[] = await this.model.detect(this.canvas);
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||||
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||||
// Check for person with sufficient confidence
|
||||
const personDetection = predictions.find(
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||||
(p) => p.class === 'person' && p.score >= this.confidenceThreshold
|
||||
);
|
||||
|
||||
if (personDetection) {
|
||||
this.noPersonCount = 0;
|
||||
if (!this.personDetected) {
|
||||
this.personDetected = true;
|
||||
this.emit('personDetected', personDetection);
|
||||
}
|
||||
} else {
|
||||
this.noPersonCount++;
|
||||
if (this.personDetected && this.noPersonCount >= this.NO_PERSON_THRESHOLD) {
|
||||
this.personDetected = false;
|
||||
this.emit('noPersonDetected');
|
||||
}
|
||||
}
|
||||
} catch (error) {
|
||||
console.error('Detection error:', error);
|
||||
}
|
||||
}
|
||||
|
||||
async stop(): Promise<void> {
|
||||
this.isRunning = false;
|
||||
|
||||
if (this.detectionInterval) {
|
||||
clearInterval(this.detectionInterval);
|
||||
this.detectionInterval = null;
|
||||
}
|
||||
|
||||
if (this.stream) {
|
||||
this.stream.getTracks().forEach((track) => track.stop());
|
||||
this.stream = null;
|
||||
}
|
||||
|
||||
if (this.video) {
|
||||
this.video.srcObject = null;
|
||||
this.video = null;
|
||||
}
|
||||
|
||||
this.canvas = null;
|
||||
this.context = null;
|
||||
this.model = null;
|
||||
}
|
||||
|
||||
isDetecting(): boolean {
|
||||
return this.isRunning;
|
||||
}
|
||||
|
||||
hasPersonPresent(): boolean {
|
||||
return this.personDetected;
|
||||
}
|
||||
}
|
||||
229
electron/services/ScreenManager.ts
Normal file
229
electron/services/ScreenManager.ts
Normal file
@@ -0,0 +1,229 @@
|
||||
import { BrowserWindow } from 'electron';
|
||||
import { exec } from 'child_process';
|
||||
import { promisify } from 'util';
|
||||
|
||||
const execAsync = promisify(exec);
|
||||
|
||||
// DBus environment for GNOME Wayland - needed to communicate with session services
|
||||
const DBUS_ENV = {
|
||||
XDG_RUNTIME_DIR: '/run/user/1000',
|
||||
DBUS_SESSION_BUS_ADDRESS: 'unix:path=/run/user/1000/bus',
|
||||
};
|
||||
|
||||
export class ScreenManager {
|
||||
private window: BrowserWindow;
|
||||
private idleTimeout: number = 300000; // 5 minutes default
|
||||
private idleTimer: NodeJS.Timeout | null = null;
|
||||
private isScreenOn: boolean = true;
|
||||
private lastActivity: number = Date.now();
|
||||
private screenControlAvailable: boolean = true;
|
||||
private isWayland: boolean = false;
|
||||
|
||||
constructor(window: BrowserWindow) {
|
||||
this.window = window;
|
||||
this.detectDisplayServer();
|
||||
this.setupActivityListeners();
|
||||
this.startIdleMonitor();
|
||||
}
|
||||
|
||||
private detectDisplayServer(): void {
|
||||
// Check if running under Wayland
|
||||
this.isWayland = !!(process.env.WAYLAND_DISPLAY || process.env.XDG_SESSION_TYPE === 'wayland');
|
||||
console.log(`ScreenManager: Display server detected - ${this.isWayland ? 'Wayland' : 'X11'}`);
|
||||
}
|
||||
|
||||
private setupActivityListeners(): void {
|
||||
// Monitor keyboard and mouse activity
|
||||
this.window.webContents.on('before-input-event', () => {
|
||||
this.resetIdleTimer();
|
||||
});
|
||||
|
||||
// Also listen for any cursor/pointer events via IPC from renderer
|
||||
// Touch events on Wayland may not trigger before-input-event
|
||||
}
|
||||
|
||||
// Called from renderer when touch/click detected
|
||||
public handleUserActivity(): void {
|
||||
this.lastActivity = Date.now();
|
||||
// Always try to wake the screen on touch/click - user is actively interacting
|
||||
if (!this.isScreenOn) {
|
||||
this.wakeScreen();
|
||||
}
|
||||
}
|
||||
|
||||
private startIdleMonitor(): void {
|
||||
this.idleTimer = setInterval(() => {
|
||||
const idleTime = Date.now() - this.lastActivity;
|
||||
if (idleTime >= this.idleTimeout && this.isScreenOn && this.screenControlAvailable) {
|
||||
this.sleepScreen();
|
||||
}
|
||||
}, 30000); // Check every 30 seconds (not 10) to reduce spam
|
||||
}
|
||||
|
||||
private resetIdleTimer(): void {
|
||||
this.lastActivity = Date.now();
|
||||
if (!this.isScreenOn) {
|
||||
this.wakeScreen();
|
||||
}
|
||||
}
|
||||
|
||||
setIdleTimeout(timeout: number): void {
|
||||
this.idleTimeout = timeout;
|
||||
}
|
||||
|
||||
async wakeScreen(): Promise<void> {
|
||||
// Always attempt to wake - the screen may have been externally put to sleep by GNOME
|
||||
if (!this.screenControlAvailable) {
|
||||
this.isScreenOn = true;
|
||||
return;
|
||||
}
|
||||
|
||||
try {
|
||||
if (process.platform === 'linux') {
|
||||
if (this.isWayland) {
|
||||
// On GNOME Wayland, we need multiple approaches because:
|
||||
// 1. The screensaver/lock screen blocks DBus SetActive calls
|
||||
// 2. We need to wake DPMS separately from screensaver
|
||||
// 3. Simulating input is the most reliable way to wake
|
||||
|
||||
let woke = false;
|
||||
|
||||
// Method 1: Simulate mouse movement with ydotool (most reliable on Wayland)
|
||||
// This bypasses all the GNOME screensaver/DPMS complications
|
||||
try {
|
||||
// ydotool syntax: mousemove <x> <y> (relative movement)
|
||||
await execAsync('ydotool mousemove 1 0 && ydotool mousemove -- -1 0', { env: { ...process.env, ...DBUS_ENV } });
|
||||
console.log('ScreenManager: Screen woke via ydotool mouse movement');
|
||||
woke = true;
|
||||
} catch (e) {
|
||||
console.log('ScreenManager: ydotool failed:', e);
|
||||
}
|
||||
|
||||
// Method 2: loginctl unlock-session (unlocks GNOME lock screen)
|
||||
if (!woke) {
|
||||
try {
|
||||
await execAsync('loginctl unlock-session', { env: { ...process.env, ...DBUS_ENV } });
|
||||
console.log('ScreenManager: Session unlocked via loginctl');
|
||||
woke = true;
|
||||
} catch (e) {
|
||||
console.log('ScreenManager: loginctl unlock failed:', e);
|
||||
}
|
||||
}
|
||||
|
||||
// Method 3: gnome-screensaver-command (older GNOME)
|
||||
if (!woke) {
|
||||
try {
|
||||
await execAsync('gnome-screensaver-command --deactivate', { env: { ...process.env, ...DBUS_ENV } });
|
||||
console.log('ScreenManager: Screen woke via gnome-screensaver-command');
|
||||
woke = true;
|
||||
} catch {
|
||||
console.log('ScreenManager: gnome-screensaver-command not available');
|
||||
}
|
||||
}
|
||||
|
||||
// Method 4: DBus SetActive (works when screen is blanked but not locked)
|
||||
if (!woke) {
|
||||
try {
|
||||
await execAsync('dbus-send --session --dest=org.gnome.ScreenSaver --type=method_call /org/gnome/ScreenSaver org.gnome.ScreenSaver.SetActive boolean:false', { env: { ...process.env, ...DBUS_ENV } });
|
||||
console.log('ScreenManager: Screen woke via dbus-send');
|
||||
woke = true;
|
||||
} catch {
|
||||
console.log('ScreenManager: dbus-send SetActive failed');
|
||||
}
|
||||
}
|
||||
|
||||
// Method 5: Wake DPMS via wlr-randr or gnome-randr
|
||||
try {
|
||||
await execAsync('gnome-randr modify --on DP-1 2>/dev/null || wlr-randr --output DP-1 --on 2>/dev/null || true', { env: { ...process.env, ...DBUS_ENV } });
|
||||
} catch {
|
||||
// Ignore - display names vary
|
||||
}
|
||||
|
||||
if (!woke) {
|
||||
console.log('ScreenManager: All wake methods failed');
|
||||
}
|
||||
} else {
|
||||
// X11 methods
|
||||
try {
|
||||
await execAsync('xset dpms force on');
|
||||
} catch {
|
||||
try {
|
||||
await execAsync('xdotool key shift');
|
||||
} catch {
|
||||
console.log('ScreenManager: No X11 screen control available, disabling feature');
|
||||
this.screenControlAvailable = false;
|
||||
}
|
||||
}
|
||||
}
|
||||
} else if (process.platform === 'win32') {
|
||||
await execAsync(
|
||||
'powershell -Command "(Add-Type -MemberDefinition \'[DllImport(\\"user32.dll\\")]public static extern int SendMessage(int hWnd,int hMsg,int wParam,int lParam);\' -Name a -Pas)::SendMessage(-1,0x0112,0xF170,-1)"'
|
||||
);
|
||||
} else if (process.platform === 'darwin') {
|
||||
await execAsync('caffeinate -u -t 1');
|
||||
}
|
||||
|
||||
this.isScreenOn = true;
|
||||
this.lastActivity = Date.now();
|
||||
this.window.webContents.send('screen:woke');
|
||||
} catch (error) {
|
||||
console.error('Failed to wake screen:', error);
|
||||
this.isScreenOn = true; // Assume screen is on to prevent retry loops
|
||||
}
|
||||
}
|
||||
|
||||
async sleepScreen(): Promise<void> {
|
||||
if (!this.isScreenOn) return;
|
||||
if (!this.screenControlAvailable) return;
|
||||
|
||||
try {
|
||||
if (process.platform === 'linux') {
|
||||
if (this.isWayland) {
|
||||
// Use busctl with DBUS session for GNOME on Wayland
|
||||
try {
|
||||
await execAsync('busctl --user call org.gnome.ScreenSaver /org/gnome/ScreenSaver org.gnome.ScreenSaver SetActive b true', { env: { ...process.env, ...DBUS_ENV } });
|
||||
console.log('ScreenManager: Screen slept via GNOME ScreenSaver DBus');
|
||||
} catch {
|
||||
try {
|
||||
// Fallback: Try wlopm
|
||||
await execAsync('wlopm --off \\*', { env: { ...process.env, ...DBUS_ENV } });
|
||||
} catch {
|
||||
// No working method - disable screen control
|
||||
console.log('ScreenManager: Wayland screen sleep not available, disabling feature');
|
||||
this.screenControlAvailable = false;
|
||||
return;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
try {
|
||||
await execAsync('xset dpms force off');
|
||||
} catch {
|
||||
console.log('ScreenManager: X11 screen sleep not available, disabling feature');
|
||||
this.screenControlAvailable = false;
|
||||
return;
|
||||
}
|
||||
}
|
||||
} else if (process.platform === 'win32') {
|
||||
await execAsync(
|
||||
'powershell -Command "(Add-Type -MemberDefinition \'[DllImport(\\"user32.dll\\")]public static extern int SendMessage(int hWnd,int hMsg,int wParam,int lParam);\' -Name a -Pas)::SendMessage(-1,0x0112,0xF170,2)"'
|
||||
);
|
||||
} else if (process.platform === 'darwin') {
|
||||
await execAsync('pmset displaysleepnow');
|
||||
}
|
||||
|
||||
this.isScreenOn = false;
|
||||
this.window.webContents.send('screen:slept');
|
||||
} catch (error) {
|
||||
console.error('Failed to sleep screen:', error);
|
||||
// Disable feature to prevent spam
|
||||
this.screenControlAvailable = false;
|
||||
}
|
||||
}
|
||||
|
||||
destroy(): void {
|
||||
if (this.idleTimer) {
|
||||
clearInterval(this.idleTimer);
|
||||
this.idleTimer = null;
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user