tmthrgd/animated-canvas-favicon.html

## animated-canvas-favicon.html
<!doctype html>
<html lang=en>
<!--
            (c) Tom Thorogood 2012
         https://tomthorogood.co.uk

Copyright 2012 Tom Thorogood. All rights reserved.
Use of this source code is governed by a
Modified BSD License license that can be found in
the LICENSE file.
-->
<head>
	<meta charset=utf-8>
	<title>Animated Canvas Favicon</title>
	<link rel="shortcut icon" href="data:image/png;base64,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" id=favicon>
</head>
<body>
	<script>
	function loaded() {
		//var canvas = document.createElement('canvas'),
		var canvas = document.getElementById('canvas'),
			ctx = canvas.getContext('2d'),
			favicon = document.getElementById('favicon'),
			img = new Image(),
			i = 0,
			x = 0,
			FPS = 20,
			doWork = function() {
				ctx.clearRect(0, 0, canvas.width, canvas.height);
				ctx.drawImage(img, i, i, canvas.width, canvas.height);

				document.head.removeChild(favicon);

				favicon = document.createElement('link');
				favicon.id = 'favicon';
				favicon.rel = 'shortcut icon';
				favicon.href = canvas.toDataURL();
				document.head.appendChild(favicon);

	 			if (i <= -canvas.width) {
					i = x = canvas.width;

					setTimeout(doWork, 4000 / FPS);
				} else if (i-- !== 0 || x === 0)
					setTimeout(doWork, 1000 / FPS);
				else {
					x = 0;
					setTimeout(doWork, 16000 / FPS);
				}
			};

		canvas.width = canvas.height = 16;

		img.src = favicon.href;
		img.onload = doWork();
	}

	if (window.addEventListener)
		window.addEventListener('load', loaded, false);
	else if (window.attachEvent)
		window.attachEvent('onload', loaded);
	else
		window.onload = loaded;
	</script>

	<canvas id=canvas width=16 height=16 style="border:1px dotted #333;padding:1px"></canvas>

	<div><p>&copy; <a href=https://tomthorogood.co.uk>Tom Thorogood</a> 2012</p></div>
</body>
</html>

## license
Copyright (c) 2012, Tom Thorogood.
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.
    * Neither the name of the Tom Thorogood nor the
      names of its contributors may be used to endorse or promote products
      derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	<!doctype html>
	<html lang=en>
	<!--
	(c) Tom Thorogood 2012
	https://tomthorogood.co.uk

	Copyright 2012 Tom Thorogood. All rights reserved.
	Use of this source code is governed by a
	Modified BSD License license that can be found in
	the LICENSE file.
	-->
	<head>
	<meta charset=utf-8>
	<title>Animated Canvas Favicon</title>
	<link rel="shortcut icon" href="data:image/png;base64,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" id=favicon>
	</head>
	<body>
	<script>
	function loaded() {
	//var canvas = document.createElement('canvas'),
	var canvas = document.getElementById('canvas'),
	ctx = canvas.getContext('2d'),
	favicon = document.getElementById('favicon'),
	img = new Image(),
	i = 0,
	x = 0,
	FPS = 20,
	doWork = function() {
	ctx.clearRect(0, 0, canvas.width, canvas.height);
	ctx.drawImage(img, i, i, canvas.width, canvas.height);

	document.head.removeChild(favicon);

	favicon = document.createElement('link');
	favicon.id = 'favicon';
	favicon.rel = 'shortcut icon';
	favicon.href = canvas.toDataURL();
	document.head.appendChild(favicon);

	if (i <= -canvas.width) {
	i = x = canvas.width;

	setTimeout(doWork, 4000 / FPS);
	} else if (i-- !== 0 \|\| x === 0)
	setTimeout(doWork, 1000 / FPS);
	else {
	x = 0;
	setTimeout(doWork, 16000 / FPS);
	}
	};

	canvas.width = canvas.height = 16;

	img.src = favicon.href;
	img.onload = doWork();
	}

	if (window.addEventListener)
	window.addEventListener('load', loaded, false);
	else if (window.attachEvent)
	window.attachEvent('onload', loaded);
	else
	window.onload = loaded;
	</script>

	<canvas id=canvas width=16 height=16 style="border:1px dotted #333;padding:1px"></canvas>

	<div><p>© <a href=https://tomthorogood.co.uk>Tom Thorogood</a> 2012</p></div>
	</body>
	</html>
	Copyright (c) 2012, Tom Thorogood.
	All rights reserved.

	Redistribution and use in source and binary forms, with or without
	modification, are permitted provided that the following conditions are met:
	* Redistributions of source code must retain the above copyright
	notice, this list of conditions and the following disclaimer.
	* Redistributions in binary form must reproduce the above copyright
	notice, this list of conditions and the following disclaimer in the
	documentation and/or other materials provided with the distribution.
	* Neither the name of the Tom Thorogood nor the
	names of its contributors may be used to endorse or promote products
	derived from this software without specific prior written permission.

	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
	ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
	WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
	DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
	(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
	ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
	SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.