bigbluebutton-Github/bigbluebutton-html5/app/client/lib/bbb_api_bridge.coffee
2015-05-06 23:15:08 -07:00

484 lines
14 KiB
CoffeeScript
Executable File

###
This file contains the BigBlueButton client APIs that will allow 3rd-party applications
to embed the HTML5 client and interact with it through Javascript.
HOW TO USE:
Some APIs allow synchronous and asynchronous calls. When using asynchronous, the 3rd-party
JS should register as listener for events listed at the bottom of this file. For synchronous,
3rd-party JS should pass in a callback function when calling the API.
For an example on how to use these APIs, see:
https://github.com/bigbluebutton/bigbluebutton/blob/master/bigbluebutton-client/resources/prod/lib/3rd-party.js
https://github.com/bigbluebutton/bigbluebutton/blob/master/bigbluebutton-client/resources/prod/3rd-party.html
###
@BBB = (->
BBB = {}
returnOrCallback = (res, callback) ->
if callback? and typeof callback is "function"
callback res
else
res
BBB.getMeetingId = ->
Meteor.Meetings.findOne()?.meetingId
BBB.getInternalMeetingId = (callback) ->
###
Queryies the user object via it's id
###
BBB.getUser = (userId) ->
Meteor.Users.findOne({userId: userId})
BBB.getCurrentUser = () ->
BBB.getUser(getInSession("userId"))
###
Query if the current user is sharing webcam.
Param:
callback - function to return the result
If you want to instead receive an event with the result, register a listener
for AM_I_SHARING_CAM_RESP (see below).
###
BBB.amISharingWebcam = (callback) ->
# BBB.isUserSharingWebcam BBB.getCurrentUser()?.userId
return false
###
Query if another user is sharing her camera.
Param:
userID : the id of the user that may be sharing the camera
callback: function if you want to be informed synchronously. Don't pass a function
if you want to be informed through an event. You have to register for
IS_USER_PUBLISHING_CAM_RESP (see below).
###
BBB.isUserSharingWebcam = (userId, callback) ->
# BBB.getUser(userId)?.user?.webcam_stream?.length isnt 0
return false
# returns whether the user has joined any type of audio
BBB.amIInAudio = (callback) ->
user = BBB.getCurrentUser()
user?.user?.listenOnly or user?.user?.voiceUser?.joined
# returns true if the user has joined the listen only audio stream
BBB.amIListenOnlyAudio = (callback) ->
BBB.getCurrentUser()?.user?.listenOnly
# returns whether the user has joined the voice conference and is sharing audio through a microphone
BBB.amISharingAudio = (callback) ->
BBB.isUserSharingAudio BBB.getCurrentUser()?.userId
# returns whether the user is currently talking
BBB.amITalking = (callback) ->
BBB.isUserTalking BBB.getCurrentUser()?.userId
BBB.isUserInAudio = (userId, callback) ->
user = BBB.getUser(userId)
user?.user?.listenOnly or user?.user?.voiceUser?.joined
BBB.isUserListenOnlyAudio = (userId, callback) ->
BBB.getUser(userId)?.user?.listenOnly
BBB.isUserSharingAudio = (userId, callback) ->
BBB.getUser(userId)?.user?.voiceUser?.joined
BBB.isUserTalking = (userId, callback) ->
BBB.getUser(userId)?.user?.voiceUser?.talking
BBB.isUserPresenter = (userId, callback) ->
BBB.getUser(userId)?.user?.presenter
# returns true if the current user is marked as locked
BBB.amILocked = ->
return BBB.getCurrentUser()?.user.locked
# check whether the user is locked AND the current lock settings for the room
# includes locking the microphone of viewers (listenOnly is still alowed)
BBB.isMyMicLocked = ->
lockedMicForRoom = Meteor.Meetings.findOne()?.roomLockSettings.disableMic
# note that voiceUser.locked is not used in BigBlueButton at this stage (April 2015)
return lockedMicForRoom and BBB.amILocked()
BBB.getCurrentSlide = ->
currentPresentation = Meteor.Presentations.findOne({"presentation.current": true})
presentationId = currentPresentation?.presentation?.id
currentSlide = Meteor.Slides.findOne({"presentationId": presentationId, "slide.current": true})
BBB.getMeetingName = ->
Meteor.Meetings.findOne()?.meetingName or null
BBB.getNumberOfUsers = ->
Meteor.Users.find().count()
BBB.currentPresentationName = ->
Meteor.Presentations.findOne({"presentation.current": true})?.presentation?.name
###
Raise user's hand.
Param:
###
BBB.lowerHand = (meetingId, toUserId, byUserId, byAuthToken) ->
Meteor.call('userLowerHand', meetingId, toUserId, byUserId, byAuthToken)
BBB.raiseHand = (meetingId, toUserId, byUserId, byAuthToken) ->
Meteor.call('userRaiseHand', meetingId, toUserId, byUserId, byAuthToken)
BBB.isUserRaisingHand = (userId) ->
BBB.getUser(userId)?.user?.raise_hand
BBB.isCurrentUserRaisingHand = ->
BBB.isUserRaisingHand(BBB.getCurrentUser()?.userId)
BBB.isMeetingRecording = ->
MEteor.Meetings.findOne()?.recorded
###
Issue a switch presenter command.
Param:
newPresenterUserID - the user id of the new presenter
3rd-party JS must listen for SWITCHED_PRESENTER (see below) to get notified
of switch presenter events.
###
BBB.switchPresenter = (newPresenterUserID) ->
###
Query if current user is presenter.
Params:
callback - function if you want a callback as response. Otherwise, you need to listen
for AM_I_PRESENTER_RESP (see below).
###
BBB.amIPresenter = (callback) ->
returnOrCallback false, callback
###
Eject a user.
Params:
userID - userID of the user you want to eject.
###
BBB.ejectUser = (userID) ->
###
Query who is presenter.
Params:
callback - function that gets executed for the response.
###
BBB.getPresenterUserID = (callback) ->
###
Query the current user's role.
Params:
callback - function if you want a callback as response. Otherwise, you need to listen
for GET_MY_ROLE_RESP (see below).
###
BBB.getMyRole = (callback) ->
returnOrCallback "VIEWER", callback
###
Query the current user's id.
Params:
callback - function that gets executed for the response.
###
BBB.getMyUserID = (callback) ->
returnOrCallback getInSession("userId"), callback
BBB.getMyDBID = (callback) ->
returnOrCallback Meteor.Users.findOne({userId:getInSession("userId")})?._id, callback
BBB.getMyUserName = (callback) ->
name = getInSession "userName" # check if we actually have one in the session
if name?
name # great return it, no database query
else # we need it from the database
user = BBB.getCurrentUser()
if user?
name = BBB.getUserName(user.userId)
setInSession "userName", name # store in session for fast access next time
name
BBB.getMyVoiceBridge = (callback) ->
res = Meteor.Meetings.findOne({}).voiceConf
returnOrCallback res, callback
BBB.getUserName = (userId, callback) ->
returnOrCallback BBB.getUser(userId)?.user?.name, callback
###
Query the current user's role.
Params:
callback - function if you want a callback as response. Otherwise, you need to listen
for GET_MY_ROLE_RESP (see below).
###
BBB.getMyUserInfo = (callback) ->
result =
myUserID: BBB.getMyUserID()
myUsername: BBB.getMyUserName()
myAvatarURL: null
myRole: BBB.getMyRole()
amIPresenter: BBB.amIPresenter()
voiceBridge: BBB.getMyVoiceBridge()
dialNumber: null
returnOrCallback(result, callback)
###
Query the meeting id.
Params:
callback - function that gets executed for the response.
###
###
Join the voice conference.
isListenOnly: signifies whether the user joining the conference audio requests to join the listen only stream
###
BBB.joinVoiceConference = (callback, isListenOnly) ->
if BBB.isMyMicLocked()
callIntoConference(BBB.getMyVoiceBridge(), callback, true) #true because we force isListenOnly mode
callIntoConference(BBB.getMyVoiceBridge(), callback, isListenOnly)
###
Leave the voice conference.
###
BBB.leaveVoiceConference = (callback) ->
webrtc_hangup callback # sign out of call
###
Get a hold of the object containing the call information
###
BBB.getCallStatus = ->
getCallStatus()
###
Share user's webcam.
Params:
publishInClient : (DO NOT USE - Unimplemented)
###
BBB.shareVideoCamera = (publishInClient) ->
###
Stop share user's webcam.
###
BBB.stopSharingCamera = ->
###
Indicates if a user is muted
###
BBB.isUserMuted = (id) ->
BBB.getUser(id)?.user?.voiceUser?.muted
###
Indicates if the current user is muted
###
BBB.amIMuted = ->
BBB.isUserMuted(BBB.getCurrentUser().userId)
###
Mute the current user.
###
BBB.muteMe = ->
BBB.muteUser(getInSession("userId"), getInSession("userId"), getInSession("authToken"))
###
Unmute the current user.
###
BBB.unmuteMe = ->
BBB.unmuteUser(getInSession("userId"), getInSession("userId"), getInSession("authToken"))
BBB.muteUser = (meetingId, userId, toMuteId, requesterId, requestToken) ->
Meteor.call('muteUser', meetingId, toMuteId, requesterId, getInSession("authToken"))
BBB.unmuteUser = (meetingId, userId, toMuteId, requesterId, requestToken) ->
Meteor.call('unmuteUser', meetingId, toMuteId, requesterId, getInSession("authToken"))
BBB.toggleMyMic = ->
request = if BBB.amIMuted() then "unmuteUser" else "muteUser"
Meteor.call(request, BBB.getMeetingId(), getInSession("userId"), getInSession("userId"), getInSession("authToken"))
###
Mute all the users.
###
BBB.muteAll = ->
###
Unmute all the users.
###
BBB.unmuteAll = ->
###
Switch to a new layout.
Param:
newLayout : name of the layout as defined in layout.xml (found in /var/www/bigbluebutton/client/conf/layout.xml)
###
BBB.switchLayout = (newLayout) ->
###
Lock the layout.
Locking the layout means that users will have the same layout with the moderator that issued the lock command.
Other users won't be able to move or resize the different windows.
###
BBB.lockLayout = (lock) ->
###
Request to send a public chat
fromUserID - the external user id for the sender
fontColor - the color of the font to display the message
localeLang - the 2-char locale code (e.g. en) for the sender
message - the message to send
###
BBB.sendPublicChatMessage = (fontColor, localeLang, message) ->
messageForServer = { # construct message for server
"message": message
"chat_type": "PUBLIC_CHAT"
"from_userid": getInSession("userId")
"from_username": BBB.getMyUserName()
"from_tz_offset": "240"
"to_username": "public_chat_username"
"to_userid": "public_chat_userid"
"from_lang": localeLang
"from_time": getTime()
"from_color": fontColor
}
Meteor.call "sendChatMessagetoServer", BBB.getMeetingId(), messageForServer, getInSession("userId"), getInSession("authToken")
###
Request to send a private chat
fromUserID - the external user id for the sender
fontColor - the color of the font to display the message
localeLang - the 2-char locale code (e.g. en) for the sender
message - the message to send
toUserID - the external user id of the receiver
###
BBB.sendPrivateChatMessage = (fontColor, localeLang, message, toUserID, toUserName) ->
messageForServer = { # construct message for server
"message": message
"chat_type": "PRIVATE_CHAT"
"from_userid": getInSession("userId")
"from_username": BBB.getMyUserName()
"from_tz_offset": "240"
"to_username": toUserName
"to_userid": toUserID
"from_lang": localeLang
"from_time": getTime()
"from_color": fontColor
}
Meteor.call "sendChatMessagetoServer", BBB.getMeetingId(), messageForServer, getInSession("userId"), getInSession("authToken")
###
Request to display a presentation.
presentationID - the presentation to display
###
BBB.displayPresentation = (presentationID) ->
###
Query the list of uploaded presentations.
###
BBB.queryListOfPresentations = ->
###
Request to delete a presentation.
presentationID - the presentation to delete
###
BBB.deletePresentation = (presentationID) ->
# Request to switch the presentation to the previous slide
BBB.goToPreviousPage = () ->
Meteor.call('publishSwitchToPreviousSlideMessage',
getInSession('meetingId'),
getInSession('userId'),
getInSession('authToken'))
# Request to switch the presentation to the next slide
BBB.goToNextPage = () ->
Meteor.call('publishSwitchToNextSlideMessage',
getInSession('meetingId'),
getInSession('userId'),
getInSession('authToken'))
BBB.webRTCConferenceCallStarted = ->
BBB.webRTCConferenceCallConnecting = ->
BBB.webRTCConferenceCallEnded = ->
BBB.webRTCConferenceCallFailed = (errorcode) ->
BBB.webRTCConferenceCallWaitingForICE = ->
BBB.webRTCCallProgressCallback = (progress) ->
BBB.webRTCEchoTestStarted = ->
BBB.webRTCEchoTestConnecting = ->
BBB.webRTCEchoTestFailed = (reason) ->
BBB.webRTCEchoTestWaitingForICE = ->
BBB.webRTCEchoTestEnded = ->
BBB.webRTCMediaRequest = ->
BBB.webRTCMediaSuccess = ->
BBB.webRTCMediaFail = ->
BBB.webRTCWebcamRequest = ->
BBB.webRTCWebcamRequestSuccess = ->
BBB.webRTCWebcamRequestFail = (reason) ->
# Third-party JS apps should use this to query if the BBB SWF file is ready to handle calls.
# ***********************************************************************************
# * Broadcasting of events to 3rd-party apps.
# ************************************************************************************
###
Stores the 3rd-party app event listeners **
###
listeners = {}
###
3rd-party apps should use this method to register to listen for events.
###
BBB.listen = (eventName, handler) ->
###
3rd-party app should use this method to unregister listener for a given event.
###
BBB.unlisten = (eventName, handler) ->
BBB.init = (callback) ->
BBB
)()