/
webcam.html
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/
webcam.html
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<html lang=”en”>
<head>
<meta charset="utf-8">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Impulcifer</title>
<style>
html, body{
margin: 0;
padding: 0;
height: 100%;
width: 100%;
}
body {
display: flex;
flex-direction: row;
}
#camera {
position: relative;
display: flex;
flex-direction: column;
overflow: hidden;
width: calc(100vw - 19vh);
margin: 8px 0 8px 8px;
height: calc(100vh - 16px);
box-sizing: border-box;
overflow: hidden;
border-radius: 16px;
}
#shutter-wrapper {
width: 100%;
position: relative;
}
#shutter, #ghost {
/*transform: scaleX(-1);*/
position: absolute;
width: 100%;
box-sizing: border-box;
border-radius: 16px;
}
#ghost {
opacity: 0.5;
}
#trigger{
width: 200px;
background-color: black;
color: white;
font-size: 16px;
border-radius: 30px;
border: none;
padding: 15px 20px;
text-align: center;
box-shadow: 0 5px 10px 0 rgba(0,0,0,0.2);
position: absolute;
bottom: 30px;
left: calc(50% - 100px);
}
#snaps {
width: 19vh;
position: relative;
display: flex;
flex-direction: column;
}
#snaps .snap {
/*transform: scaleX(-1);*/
box-sizing: border-box;
border-radius: 16px;
margin: 8px 8px 0 8px;
background-color: lightgray;
background-size: cover;
flex-grow: 1;
}
#snaps .snap img {
display: none;
}
#snaps .snap:last-child {
margin-bottom: 8px;
}
#snaps .snap.selected {
box-shadow: 0 0 3px 3px lightblue;
}
</style>
</head>
<body>
<!-- Camera -->
<div id="camera">
<div id="shutter-wrapper">
<video id="shutter" autoplay playsinline></video>
<canvas id="ghost"></canvas>
</div>
<button id="trigger">Take a picture</button>
</div>
<div id="snaps">
<div class="snap selected"><img src="//:0" /></div>
<div class="snap"><img src="//:0" /></div>
<div class="snap"><img src="//:0" /></div>
<div class="snap"><img src="//:0" /></div>
<div class="snap"><img src="//:0" /></div>
<div class="snap"><img src="//:0" /></div>
<div class="snap"><img src="//:0" /></div>
</div>
<!-- Reference to your JavaScript file -->
<script>
// Set constraints for the video stream
let constraints = { video: { facingMode: "user", width: {min: 1270}, height: {min: 720} }, audio: false };
// Define constants
const shutter = document.querySelector("#shutter");
const ghost = document.querySelector("#ghost");
const trigger = document.querySelector("#trigger");
const snapImages = document.querySelectorAll("#snaps .snap");
function removeSelection (skipEl) {
snapImages.forEach((el) => {
if (el !== skipEl) {
el.classList.remove("selected");
}
});
}
snapImages.forEach((el) => {
el.onclick = () => {
removeSelection();
el.classList.add("selected");
ghost.width = shutter.videoWidth;
ghost.height = shutter.videoHeight;
ghost.getContext("2d").drawImage(el.getElementsByTagName("img")[0], 0, 0);
};
});
// Access the device camera and stream to camera
function cameraStart() {
navigator.mediaDevices.getUserMedia(constraints).then(function(stream) {
track = stream.getTracks()[0];
shutter.srcObject = stream;
})
.catch(function(error) {
console.error("Oops. Something is broken.", error);
});
}
// Take a picture when trigger is tapped
trigger.onclick = function() {
ghost.width = shutter.videoWidth;
ghost.height = shutter.videoHeight;
ghost.getContext("2d").drawImage(shutter, 0, 0);
let dataUrl = ghost.toDataURL("image/webp");
let snap = document.querySelector("#snaps .snap.selected");
snap.style.backgroundImage = 'url("' + dataUrl + '")';
snap.getElementsByTagName("img")[0].src = dataUrl;
};
// Start the video stream when the window loads
window.addEventListener("load", cameraStart, false);
</script>
</body>
</html>