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To analyze the code get video-chat-and-screen-sharing.js file version with hash c306c1bbf49bfcbd8e24be927ae95f63b7dbaaba hash 66cc393 that can be found here and and is available to download in build 0.5.28.2753.2747133.
1. API initializing.
Flashphoner.init() code
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Flashphoner.init({ flashMediaProviderSwfLocation: '../../../../media-provider.swf', screenSharingExtensionId: extensionId }); |
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Flashphoner.roomApi.connect() code
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connection = Flashphoner.roomApi.connect({urlServer: url, username: username}).on(SESSION_STATUS.FAILED, function(session){ setStatus('#status', session.status()); onLeft(); }).on(SESSION_STATUS.DISCONNECTED, function(session) { setStatus('#status', session.status()); onLeft(); }).on(SESSION_STATUS.ESTABLISHED, function(session) { setStatus('#status', session.status()); joinRoom(); }); |
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ConnectionStatusEvent ESTABLISHED code
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connection = Flashphoner.roomApi.connect({urlServer: url, username: username}).on(SESSION_STATUS.FAILED, function(session){ ... }).on(SESSION_STATUS.DISCONNECTED, function(session) { ... }).on(SESSION_STATUS.ESTABLISHED, function(session) { setStatus('#status', session.status()); joinRoom(); }); |
4. Joining to the room
connection.join() code
To join, name of the conference room is passed to the method. (The name can be specified as parameter in the URL of the client page; otherwise, random name will be generated.)
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5. Receiving the event describing chat room state
RoomStatusEvent STATE code
On this event:
- the length of the array of Participant objects returned by method Room.getParticipants() is determined to get the number of already connected participants
- if the maximum allowed number of participants had already been reached, the user leaves the "room"
- otherwise, the user starts publishing video stream
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6. Screen streaming
room.publish() code
These parameters are passed to room.publish() method:
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7. Receiving the event notifying that other participant joined to the room
RoomStatusEvent JOINED code
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connection.join({name: getRoomName()}).on(ROOM_EVENT.STATE, function(room){ ... }).on(ROOM_EVENT.JOINED, function(participant){ installParticipant(participant); addMessage(participant.name(), "joined"); }).on(ROOM_EVENT.LEFT, function(participant){ ... }).on(ROOM_EVENT.PUBLISHED, function(participant){ ... }).on(ROOM_EVENT.FAILED, function(room, info){ ... }).on(ROOM_EVENT.MESSAGE, function(message){ ... }); |
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RoomStatusEvent PUBLISHED code
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connection.join({name: getRoomName()}).on(ROOM_EVENT.STATE, function(room){ ... }).on(ROOM_EVENT.JOINED, function(participant){ ... }).on(ROOM_EVENT.LEFT, function(participant){ ... }).on(ROOM_EVENT.PUBLISHED, function(participant){ playParticipantsStream(participant); }).on(ROOM_EVENT.FAILED, function(room, info){ ... }).on(ROOM_EVENT.MESSAGE, function(message){ ... }); |
9. Playback of video stream.
participant.play() code
<div> element, in which the video will be displayed depending on source (web camera or screen), is passed to the participant.play() method.
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10. Stop of streaming.
stream.stop() code
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function onMediaPublished(stream) { $("#localStopBtn").text("Stop").off('click').click(function(){ $(this).prop('disabled', true); stream.stop(); }).prop('disabled', false); ... } |
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StreamStatusEvent UNPUBLISHED code
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room.publish({ display: document.getElementById("preview"), constraints: constraints, name: "screenShare", cacheLocalResources: false }).on(STREAM_STATUS.FAILED, function (stream) { ... }).on(STREAM_STATUS.PUBLISHING, function (stream) { ... }).on(STREAM_STATUS.UNPUBLISHED, function(stream) { onStopSharing(); }); |
12. Leaving chat room.
room.leave() code
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function onJoined(room) { $("#joinBtn").text("Leave").off('click').click(function(){ $(this).prop('disabled', true); room.leave().then(onLeft, onLeft); }).prop('disabled', false); ... } |