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|
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>• jQuery webcam plugin • Code is Poetry</title>
<style type="text/css">
#webcam, #canvas {
width: 320px;
height: 240px;
border:20px solid #333;
background:#eee;
-webkit-border-radius: 20px;
-moz-border-radius: 20px;
border-radius: 20px;
}
#webcam {
position:relative;
margin-top:50px;
margin-bottom:50px;
}
#webcam > span {
z-index:2;
position:absolute;
color:#eee;
font-size:10px;
bottom: -16px;
left:152px;
}
#webcam > img {
z-index:1;
position:absolute;
border:0px none;
padding:0px;
bottom:-40px;
left:89px;
}
#webcam > div {
border:5px solid #333;
position:absolute;
right:-90px;
padding:5px;
-webkit-border-radius: 8px;
-moz-border-radius: 8px;
border-radius: 8px;
cursor:pointer;
}
#webcam a {
background:#fff;
font-weight:bold;
}
#webcam a > img {
border:0px none;
}
#canvas {
border:20px solid #ccc;
background:#eee;
}
#flash {
position:absolute;
top:0px;
left:0px;
z-index:5000;
width:100%;
height:500px;
background-color:#c00;
display:none;
}
object {
display:block; /* HTML5 fix */
position:relative;
z-index:1000;
}
</style>
<script type="text/javascript" src="jquery-1.4.2.min.js"></script>
<script type="text/javascript" src="jquery.webcam.js"></script>
</head>
<body>
<div id="wrap">
<div id="main" style="float:left">
<h2>jQuery webcam example</h2>
<p id="status" style="height:22px; color:#c00;font-weight:bold;"></p>
<div id="webcam">
</div>
<p style="width:360px;text-align:center; "><a href="javascript:webcam.capture(3);changeFilter();void(0);">Take a picture after 3 seconds</a> | <a href="javascript:webcam.capture();void(0);">Take a picture instantly</a></p>
<p><canvas id="canvas" height="240" width="320"></canvas></p>
<h3>Available Cameras</h3>
<ul id="cams"></ul>
<script type="text/javascript">
var pos = 0;
var ctx = null;
var cam = null;
var image = null;
var filter_on = false;
var filter_id = 0;
function changeFilter() {
if (filter_on) {
filter_id = (filter_id + 1) & 7;
}
}
function toggleFilter(obj) {
if (filter_on =!filter_on) {
obj.parentNode.style.borderColor = "#c00";
} else {
obj.parentNode.style.borderColor = "#333";
}
}
jQuery("#webcam").webcam({
width: 320,
height: 240,
mode: "save",
swffile: "jscam_canvas_only.swf",
onTick: function(remain) {
if (0 == remain) {
jQuery("#status").text("Cheese!");
} else {
jQuery("#status").text(remain + " seconds remaining...");
}
},
onSave: function(data) {
alert(data);
var col = data.split(";");
var img = image;
if (false == filter_on) {
for(var i = 0; i < 320; i++) {
var tmp = parseInt(col[i]);
img.data[pos + 0] = (tmp >> 16) & 0xff;
img.data[pos + 1] = (tmp >> 8) & 0xff;
img.data[pos + 2] = tmp & 0xff;
img.data[pos + 3] = 0xff;
pos+= 4;
}
} else {
var id = filter_id;
var r,g,b;
var r1 = Math.floor(Math.random() * 255);
var r2 = Math.floor(Math.random() * 255);
var r3 = Math.floor(Math.random() * 255);
for(var i = 0; i < 320; i++) {
var tmp = parseInt(col[i]);
/* Copied some xcolor methods here to be faster than calling all methods inside of xcolor and to not serve complete library with every req */
if (id == 0) {
r = (tmp >> 16) & 0xff;
g = 0xff;
b = 0xff;
} else if (id == 1) {
r = 0xff;
g = (tmp >> 8) & 0xff;
b = 0xff;
} else if (id == 2) {
r = 0xff;
g = 0xff;
b = tmp & 0xff;
} else if (id == 3) {
r = 0xff ^ ((tmp >> 16) & 0xff);
g = 0xff ^ ((tmp >> 8) & 0xff);
b = 0xff ^ (tmp & 0xff);
} else if (id == 4) {
r = (tmp >> 16) & 0xff;
g = (tmp >> 8) & 0xff;
b = tmp & 0xff;
var v = Math.min(Math.floor(.35 + 13 * (r + g + b) / 60), 255);
r = v;
g = v;
b = v;
} else if (id == 5) {
r = (tmp >> 16) & 0xff;
g = (tmp >> 8) & 0xff;
b = tmp & 0xff;
if ((r+= 32) < 0) r = 0;
if ((g+= 32) < 0) g = 0;
if ((b+= 32) < 0) b = 0;
} else if (id == 6) {
r = (tmp >> 16) & 0xff;
g = (tmp >> 8) & 0xff;
b = tmp & 0xff;
if ((r-= 32) < 0) r = 0;
if ((g-= 32) < 0) g = 0;
if ((b-= 32) < 0) b = 0;
} else if (id == 7) {
r = (tmp >> 16) & 0xff;
g = (tmp >> 8) & 0xff;
b = tmp & 0xff;
r = Math.floor(r / 255 * r1);
g = Math.floor(g / 255 * r2);
b = Math.floor(b / 255 * r3);
}
img.data[pos + 0] = r;
img.data[pos + 1] = g;
img.data[pos + 2] = b;
img.data[pos + 3] = 0xff;
pos+= 4;
}
}
if (pos >= 0x4B000) {
ctx.putImageData(img, 0, 0);
pos = 0;
}
},
onCapture: function () {
alert("test");
webcam.save();
jQuery("#flash").css("display", "block");
jQuery("#flash").fadeOut(100, function () {
jQuery("#flash").css("opacity", 1);
});
},
debug: function (type, string) {
jQuery("#status").html(type + ": " + string);
},
onLoad: function () {
var cams = webcam.getCameraList();
for(var i in cams) {
jQuery("#cams").append("<li>" + cams[i] + "</li>");
}
}
});
function getPageSize() {
var xScroll, yScroll;
if (window.innerHeight && window.scrollMaxY) {
xScroll = window.innerWidth + window.scrollMaxX;
yScroll = window.innerHeight + window.scrollMaxY;
} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
xScroll = document.body.scrollWidth;
yScroll = document.body.scrollHeight;
} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
xScroll = document.body.offsetWidth;
yScroll = document.body.offsetHeight;
}
var windowWidth, windowHeight;
if (self.innerHeight) { // all except Explorer
if(document.documentElement.clientWidth){
windowWidth = document.documentElement.clientWidth;
} else {
windowWidth = self.innerWidth;
}
windowHeight = self.innerHeight;
} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
windowWidth = document.documentElement.clientWidth;
windowHeight = document.documentElement.clientHeight;
} else if (document.body) { // other Explorers
windowWidth = document.body.clientWidth;
windowHeight = document.body.clientHeight;
}
// for small pages with total height less then height of the viewport
if(yScroll < windowHeight){
pageHeight = windowHeight;
} else {
pageHeight = yScroll;
}
// for small pages with total width less then width of the viewport
if(xScroll < windowWidth){
pageWidth = xScroll;
} else {
pageWidth = windowWidth;
}
return [pageWidth, pageHeight];
}
window.addEventListener("load", function() {
jQuery("body").append("<div id=\"flash\"></div>");
var canvas = document.getElementById("canvas");
if (canvas.getContext) {
ctx = document.getElementById("canvas").getContext("2d");
ctx.clearRect(0, 0, 320, 240);
var img = new Image();
img.src = "/static/logo.gif";
img.onload = function() {
ctx.drawImage(img, 129, 89);
}
image = ctx.getImageData(0, 0, 320, 240);
}
var pageSize = getPageSize();
jQuery("#flash").css({ height: pageSize[1] + "px" });
}, false);
window.addEventListener("resize", function() {
var pageSize = getPageSize();
jQuery("#flash").css({ height: pageSize[1] + "px" });
}, false);
</script>
</div>
</div>
</body>
</html> |
