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Added getUserMedia option style detection #1

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merged 1 commit into from Mar 13, 2012
Merged

Added getUserMedia option style detection #1

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99 changes: 73 additions & 26 deletions js/getusermedia.js
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Expand Up @@ -4,38 +4,85 @@

getUserMedia = function (options, successCallback, errorCallback) {

navigator.getUserMedia_ = navigator.getUserMedia || navigator.webkitGetUserMedia;
navigator.getUserMedia_ = (navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia);

// detect if {video: true} or "video" style options
// by creating an iframe and blowing it up
// style jacked from @kangax
// taken here from @miketaylr: //gist.github.com/f2ac64ed7fc467ccdfe3
var optionStyle = (function (win) {

var el = document.createElement('iframe'),
root = document.body || document.documentElement,
string = true, object = true, nop = function(){};
root.appendChild(el);

var f = win.frames[win.frames.length-1];

f.navigator.getUserMedia || (f.navigator.getUserMedia = f.navigator.webkitGetUserMedia || f.navigator.mozGetuserMedia || f.navigator.msGetUserMedia);

try { // Try spec (object) syntax
f.navigator.getUserMedia({video: true, audio: true}, nop);
} catch (e) {
object = false;
try { // Try string syntax
f.navigator.getUserMedia("video, audio", nop);
} catch (e) { // Neither supported
string = false;
}
} finally { // Clean up
root.removeChild(el);
el = null;
}

return { string: string, object: object }

}(window));

if (!! navigator.getUserMedia_ ) {

if ( !(options.audio && options.video) ) {
alert('This mode is not yet supported: NOT_SUPPORTED_ERR');
} else {

var container, temp, video, ow, oh;

container = document.getElementById(options.el);
temp = document.createElement('video');

// Fix for ratio
ow = parseInt(container.offsetWidth);
oh = parseInt(container.offsetHeight);
if(options.width < ow && options.height < oh){
options.width = ow;
options.height = oh;
}
if( !optionStyle.string && !optionStyle.object ) {
return undefined;
}

var getUserMediaOptions = undefined;
if( optionStyle.string ) {
if( options.video && options.audio )
getUserMediaOptions = 'video, audio';
else if( options.video )
getUserMediaOptions = 'video';
else if( options.audio )
getUserMediaOptions = 'audio';
} else if( optionStyle.object ) {
if( options.video )
getUserMediaOptions.video = true;
if( options.audio )
getUserMediaOptions.audio = true;
}

var container, temp, video, ow, oh;

container = document.getElementById(options.el);
temp = document.createElement('video');

// Fix for ratio
ow = parseInt(container.offsetWidth);
oh = parseInt(container.offsetHeight);
if(options.width < ow && options.height < oh){
options.width = ow;
options.height = oh;
}

temp.width = options.width;
temp.height = options.height;
temp.autoplay = true;
container.appendChild(temp);
video = temp;
options.videoEl = video;
options.context = 'webrtc';
temp.width = options.width;
temp.height = options.height;
temp.autoplay = true;
container.appendChild(temp);
video = temp;
options.videoEl = video;
options.context = 'webrtc';

navigator.getUserMedia_('video', successCallback, errorCallback);
navigator.getUserMedia_(getUserMediaOptions, successCallback, errorCallback);

}
} else {
// fallback to flash
var source, el, cam;
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