Start to request screen sharing

This commit is contained in:
Pierre HUBERT 2020-04-13 16:48:58 +02:00
parent d297bf92d0
commit 40ef78acc6
4 changed files with 280 additions and 6 deletions

222
assets/3rdparty/getScreenId.js vendored Normal file
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@ -0,0 +1,222 @@
// Last time updated on June 08, 2018
// Latest file can be found here: https://cdn.webrtc-experiment.com/getScreenId.js
// Muaz Khan - www.MuazKhan.com
// MIT License - www.WebRTC-Experiment.com/licence
// Documentation - https://github.com/muaz-khan/getScreenId.
// ______________
// getScreenId.js
/*
getScreenId(function (error, sourceId, screen_constraints) {
// error == null || 'permission-denied' || 'not-installed' || 'installed-disabled' || 'not-chrome'
// sourceId == null || 'string' || 'firefox'
if(navigator.getDisplayMedia) {
navigator.getDisplayMedia(screen_constraints).then(onSuccess, onFailure);
}
else {
navigator.mediaDevices.getUserMedia(screen_constraints).then(onSuccess)catch(onFailure);
}
}, 'pass second parameter only if you want system audio');
*/
(function() {
window.getScreenId = function(callback, custom_parameter) {
if(navigator.userAgent.indexOf('Edge') !== -1 && (!!navigator.msSaveOrOpenBlob || !!navigator.msSaveBlob)) {
// microsoft edge => navigator.getDisplayMedia(screen_constraints).then(onSuccess, onFailure);
callback({
video: true
});
return;
}
// for Firefox:
// sourceId == 'firefox'
// screen_constraints = {...}
if (!!navigator.mozGetUserMedia) {
callback(null, 'firefox', {
video: {
mozMediaSource: 'window',
mediaSource: 'window'
}
});
return;
}
window.addEventListener('message', onIFrameCallback);
function onIFrameCallback(event) {
if (!event.data) return;
if (event.data.chromeMediaSourceId) {
if (event.data.chromeMediaSourceId === 'PermissionDeniedError') {
callback('permission-denied');
} else {
callback(null, event.data.chromeMediaSourceId, getScreenConstraints(null, event.data.chromeMediaSourceId, event.data.canRequestAudioTrack));
}
// this event listener is no more needed
window.removeEventListener('message', onIFrameCallback);
}
if (event.data.chromeExtensionStatus) {
callback(event.data.chromeExtensionStatus, null, getScreenConstraints(event.data.chromeExtensionStatus));
// this event listener is no more needed
window.removeEventListener('message', onIFrameCallback);
}
}
if(!custom_parameter) {
setTimeout(postGetSourceIdMessage, 100);
}
else {
setTimeout(function() {
postGetSourceIdMessage(custom_parameter);
}, 100);
}
};
function getScreenConstraints(error, sourceId, canRequestAudioTrack) {
var screen_constraints = {
audio: false,
video: {
mandatory: {
chromeMediaSource: error ? 'screen' : 'desktop',
maxWidth: window.screen.width > 1920 ? window.screen.width : 1920,
maxHeight: window.screen.height > 1080 ? window.screen.height : 1080
},
optional: []
}
};
if(!!canRequestAudioTrack) {
screen_constraints.audio = {
mandatory: {
chromeMediaSource: error ? 'screen' : 'desktop',
// echoCancellation: true
},
optional: []
};
}
if (sourceId) {
screen_constraints.video.mandatory.chromeMediaSourceId = sourceId;
if(screen_constraints.audio && screen_constraints.audio.mandatory) {
screen_constraints.audio.mandatory.chromeMediaSourceId = sourceId;
}
}
return screen_constraints;
}
function postGetSourceIdMessage(custom_parameter) {
if (!iframe) {
loadIFrame(function() {
postGetSourceIdMessage(custom_parameter);
});
return;
}
if (!iframe.isLoaded) {
setTimeout(function() {
postGetSourceIdMessage(custom_parameter);
}, 100);
return;
}
if(!custom_parameter) {
iframe.contentWindow.postMessage({
captureSourceId: true
}, '*');
}
else if(!!custom_parameter.forEach) {
iframe.contentWindow.postMessage({
captureCustomSourceId: custom_parameter
}, '*');
}
else {
iframe.contentWindow.postMessage({
captureSourceIdWithAudio: true
}, '*');
}
}
var iframe;
// this function is used in RTCMultiConnection v3
window.getScreenConstraints = function(callback) {
loadIFrame(function() {
getScreenId(function(error, sourceId, screen_constraints) {
if(!screen_constraints) {
screen_constraints = {
video: true
};
}
callback(error, screen_constraints.video);
});
});
};
function loadIFrame(loadCallback) {
if (iframe) {
loadCallback();
return;
}
iframe = document.createElement('iframe');
iframe.onload = function() {
iframe.isLoaded = true;
loadCallback();
};
iframe.src = 'https://www.webrtc-experiment.com/getSourceId/'; // https://wwww.yourdomain.com/getScreenId.html
iframe.style.display = 'none';
(document.body || document.documentElement).appendChild(iframe);
}
window.getChromeExtensionStatus = function(callback) {
// for Firefox:
if (!!navigator.mozGetUserMedia) {
callback('installed-enabled');
return;
}
window.addEventListener('message', onIFrameCallback);
function onIFrameCallback(event) {
if (!event.data) return;
if (event.data.chromeExtensionStatus) {
callback(event.data.chromeExtensionStatus);
// this event listener is no more needed
window.removeEventListener('message', onIFrameCallback);
}
}
setTimeout(postGetChromeExtensionStatusMessage, 100);
};
function postGetChromeExtensionStatusMessage() {
if (!iframe) {
loadIFrame(postGetChromeExtensionStatusMessage);
return;
}
if (!iframe.isLoaded) {
setTimeout(postGetChromeExtensionStatusMessage, 100);
return;
}
iframe.contentWindow.postMessage({
getChromeExtensionStatus: true
}, '*');
}
})();

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@ -791,4 +791,31 @@ function IsFullScreen(){
*/
function checkEmojiCode(s) {
return s.match(/^:[a-zA-Z0-9]+:$/) != null
}
/**
* Request user screen as stream
*
* @return {Promise<MediaStream>}
*/
function requestUserScreen() {
return new Promise((onSuccess, onFailure) => {
getScreenId(function (error, sourceId, screen_constraints) {
if(error != null)
return onFailure(error)
// error == null || 'permission-denied' || 'not-installed' || 'installed-disabled' || 'not-chrome'
// sourceId == null || 'string' || 'firefox'
if(navigator.getDisplayMedia) {
navigator.getDisplayMedia(screen_constraints).then(onSuccess, onFailure);
}
else {
navigator.mediaDevices.getUserMedia(screen_constraints).then(onSuccess).catch(onFailure);
}
});
})
}

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@ -254,6 +254,9 @@ class CallWindow extends CustomEvents {
// Parse list of menu entries
for(const entry of menuEntries) {
if(entry.needVideo && !this.allowVideo)
continue
const a = createElem2({
appendTo: menuEntriesTarget,
type: "li",
@ -666,14 +669,33 @@ class CallWindow extends CustomEvents {
* Start to send this client audio & video
*
* @param {boolean} includeVideo
* @param {boolean} shareScreen
*/
async startStreaming(includeVideo) {
async startStreaming(includeVideo, shareScreen = false) {
// First, query user media
const stream = await navigator.mediaDevices.getUserMedia({
video: this.conv.can_have_video_call && includeVideo,
audio: true
})
let videoConstraints = this.conv.can_have_video_call && includeVideo;
let stream;
// Get user screen
if(includeVideo && shareScreen) {
stream = await requestUserScreen(true)
const second_stream = await navigator.mediaDevices.getUserMedia({
audio: true
})
stream.addTrack(second_stream.getAudioTracks()[0])
}
// Use regular webcam
else {
// First, query user media
stream = await navigator.mediaDevices.getUserMedia({
video: videoConstraints,
audio: true,
})
}
this.mainStream = stream;
if(includeVideo)

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@ -162,6 +162,9 @@ class Dev {
//Simple peer
array("path" => "3rdparty/simplepeer/simplepeer.min.js", "uglifyjs" => false),
// Share screen
"3rdparty/getScreenId.js",
);
/**