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app.js
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app.js
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// Set constraints for the video stream
//var constraints = { video: { facingMode: "user" }, audio: false };
var constraints = { video: { facingMode: { exact: "environment" } }, audio: false };
var track = null;
// Define constants
const cameraView = document.querySelector("#camera--view"),
cameraOutput = document.querySelector("#camera--output"),
cameraSensor = document.querySelector("#camera--sensor"),
cameraTrigger = document.querySelector("#camera--trigger");
// Access the device camera and stream to cameraView
function cameraStart() {
navigator.mediaDevices
.getUserMedia(constraints)
.then(function(stream) {
track = stream.getTracks()[0];
cameraView.srcObject = stream;
})
.catch(function(error) {
console.error("Oops. Something is broken.", error);
});
}
// Take a picture when cameraTrigger is tapped
cameraTrigger.onclick = function() {
cameraSensor.width = cameraView.videoWidth;
cameraSensor.height = cameraView.videoHeight;
cameraSensor.getContext("2d").drawImage(cameraView, 0, 0);
cameraOutput.src = cameraSensor.toDataURL("image/webp");
cameraOutput.classList.add("taken");
// track.stop();
};
// Start the video stream when the window loads
window.addEventListener("load", cameraStart, false);