78 lines
2.5 KiB
CoffeeScript
78 lines
2.5 KiB
CoffeeScript
define [
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'jquery',
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'underscore',
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'backbone',
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'globals',
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'text!templates/session_users.html',
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'text!templates/user.html',
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], ($, _, Backbone, globals, sessionUsersTemplate, userTemplate) ->
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# The users panel in a session
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# The contents are rendered by SessionView, this class is Used to
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# manage the events in the users.
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SessionUsersView = Backbone.View.extend
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events:
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"click #switch-presenter": "_switchPresenter"
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"click .user": "_userClicked"
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initialize: ->
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@userListID = "#current-users"
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# Bind to the event triggered when the client connects to the server
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globals.connection.bind "connection:connected",
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@_registerConnectionEvents, @
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render: ->
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compiledTemplate = _.template(sessionUsersTemplate)
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@$el.html compiledTemplate
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# Registers listeners for events in the application socket.
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_registerConnectionEvents: ->
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socket = globals.connection.socket
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# Received event for a new public chat message
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# @param {Array} users Array of names and publicIDs of connected users
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socket.on "user list change", (users) =>
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@_removeAllUsers()
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for userBlock in users
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@_addUser(userBlock.id, userBlock.name)
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# Received event to set the presenter to a user
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# @param {string} userID publicID of the user that is being set as the current presenter
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socket.on "setPresenter", (userID) =>
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@_setPresenter(userID)
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# Removes all users from the screen.
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_removeAllUsers: ->
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@$(@userListID).empty()
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# Add a user to the screen.
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_addUser: (userID, username) ->
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data =
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username: username
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userID: userID
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compiledTemplate = _.template(userTemplate, data)
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@$(@userListID).append compiledTemplate
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# Marks a user as selected when clicked.
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_userClicked: (e) ->
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@$('.user.selected').removeClass('selected')
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# add .selected to the user's element
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$target = @$(e.target)
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unless $target.hasClass('user') # clicked on a child
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$target = $target.parents('.user')
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$target.addClass('selected')
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# Sets the current presenter to the user currently selected.
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_switchPresenter: ->
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id = @$(".user.selected").attr("id").replace("user-", "")
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globals.connection.emitSetPresenter id
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# Sets the user with ID `userID` as the presenter.
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_setPresenter: (userID) ->
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@$(".user.presenter").removeClass "presenter"
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@$("#user-#{userID}").addClass "presenter"
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SessionUsersView
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