screen-share-extension/test.html at master · dotEngine/screen-share-extension · GitHub

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<!doctype html>
<html>
<head>
<meta http-equiv='Content-Type' content='text/html; charset=UTF-8'>
<title> dotEngine  </title>
<style type="text/css">
	.room {
		cursor: pointer;
	}
	div.select {
      display: inline-block;
      margin: 0 0 1em 0;
    }
</style>


<script type='text/javascript'>

let screen_constraints = {
        mandatory: {
            chromeMediaSource: 'desktop',
            maxWidth: 1280,
            maxHeight: 720
        },
        optional: []
    };

let extensionExist;

window.addEventListener('message', function(event) {

    console.log(event)

    onMessageCallback(event.data);
});


function onMessageCallback(data) {
    // "cancel" button is clicked

    if (data == 'PermissionDeniedError') {
        alert('PermissionDeniedError');
    }

    // extension notified his presence
    if (data == 'extension-loaded') {
        alert('extension-loaded')
    }

    // extension shared temp sourceId

    if(data.sourceId){
        screen_constraints.mandatory.chromeMediaSourceId = data.sourceId;
        getUserMedia(screen_constraints)
    }

}

function getUserMedia(constraints){
     navigator.getUserMedia({video:constraints}, function (stream) {
         var video = document.querySelector('video');
         video.src = URL.createObjectURL(stream);
         video.play();
         console.log('video play')
    }, function (error) {
        console.error(error);
    });
}

function getSourceId() {
    window.postMessage('get-sourceId', '*')
}

function checkExtension() {
    window.postMessage('are-you-there','*')
}

</script>
</head>

<body>
    <video controls autoplay width="320" height="240"></video>
    <br/>

    <button onclick="getSourceId();">
        getSource
    </button>
    <button onclick="checkExtension();">
        checkExtension()
    </button>
</body>

</html>