File: examples/impl.js

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File: examples/impl.js
Role: Example script
Content type: text/plain
Description: Example script
Class: JS Webcam
Capture pictures or video with the webcam
Author: By
Last change: Update of examples/impl.js
Date: 2 years ago
Size: 2,900 bytes
 

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document.addEventListener('DOMContentLoaded', function () { document.getElementById('image').style.display = 'none'; document.getElementById('thumb').style.display = 'none'; document.getElementById('video').style.display = 'none'; var webcam = new Webcam('#video'); /** * when pressing the stop button... */ document.getElementById('stop').addEventListener('click', function(e){ e.preventDefault(); webcam.stop(); document.getElementById('image').style.display = 'none'; document.getElementById('thumb').style.display = 'none'; }, false); document.getElementById('start').addEventListener('click', function(e){ e.preventDefault(); if (webcam.isSupported()) { webcam.start({video: true, audio: false}, function(stream) { // success function, video is streaming... document.getElementById('video').style.display = 'block'; }, function(e) { alert('Oops, something went wrong'); }); } else { if (window.navigator.userAgent.match(/Mobi/)){ // mobile browser... webcam.useFallback(true); } else{ alert('API is not supported by your browser'); } } }, false); document.getElementById('picture').addEventListener('click', function(e){ e.preventDefault(); if (webcam.isStarted()){ // now take an picture using the webcam webcam.takePicture(function(pic){ // and assign it to an image document.querySelector('#image').src = pic; document.querySelector('#image').style.display = 'inline'; }); // now take an picture using the webcam and make a square centered thumb webcam.takePicture(function(pic){ document.getElementById('video').style.display = 'none'; // and assign it to an image document.querySelector('#thumb').src = pic; document.querySelector('#thumb').style.display = 'inline'; },function(ctx, canvas){ var min = Math.min(canvas.width,canvas.height); var max = Math.max(canvas.width,canvas.height); canvas.width = min; canvas.height = min; ctx.drawImage(webcam.element(), (max-min)/2, 0, min,min, 0,0,min,min); }); } }, false); document.getElementById('fallback').addEventListener('click', function(e){ // now take an picture using the webcam and make a square centered thumb webcam.fallback(function(pic){ document.getElementById('video').style.display = 'none'; // and assign it to an image document.querySelector('#thumb').src = pic; document.querySelector('#thumb').style.display = 'inline'; },function(ctx, canvas){ var min = Math.min(canvas.width,canvas.height); var max = Math.max(canvas.width,canvas.height); canvas.width = min; canvas.height = min; ctx.drawImage(webcam.element(), (max-min)/2, 0, min,min, 0,0,min,min); }); }, false); });