Skip to content

Instantly share code, notes, and snippets.

@ghirst
Created November 8, 2013 13:21
Show Gist options
  • Star 0 You must be signed in to star a gist
  • Fork 1 You must be signed in to fork a gist
  • Save ghirst/7370961 to your computer and use it in GitHub Desktop.
Save ghirst/7370961 to your computer and use it in GitHub Desktop.
Camera Capture - page reloads on button press, should not do this
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="CameraCapture.aspx.vb" Inherits="CameraCapture" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<p>Using Opera Next or Chrome Canary, use this page to take your picture!</p>
<!--
Ideally these elements aren't created until it's confirmed that the
client supports video/camera, but for the sake of illustrating the
elements involved, they are created with markup (not JavaScript)
-->
<video id="video" width="640" height="480" autoplay></video>
<button id="snap" class="sexyButton">Snap Photo</button>
<canvas id="canvas" width="640" height="480"></canvas>
<script>
// Put event listeners into place
window.addEventListener("DOMContentLoaded", function () {
// Grab elements, create settings, etc.
var canvas = document.getElementById("canvas"),
context = canvas.getContext("2d"),
video = document.getElementById("video"),
videoObj = { "video": true },
errBack = function (error) {
console.log("Video capture error: ", error.code);
};
// Put video listeners into place
if (navigator.getUserMedia) { // Standard
navigator.getUserMedia(videoObj, function (stream) {
video.src = stream;
video.play();
}, errBack);
} else if (navigator.webkitGetUserMedia) { // WebKit-prefixed
navigator.webkitGetUserMedia(videoObj, function (stream) {
video.src = window.webkitURL.createObjectURL(stream);
video.play();
}, errBack);
}
// Trigger photo take
document.getElementById("snap").addEventListener("click", function () {
context.drawImage(video, 0, 0, 640, 480);
});
}, false);
</script>
</div>
</form>
</body>
</html>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment