231 lines
9.9 KiB
CoffeeScript
Executable File
231 lines
9.9 KiB
CoffeeScript
Executable File
# --------------------------------------------------------------------------------------------------------------------
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# If a function's last line is the statement false that represents the function returning false
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# A function such as a click handler will continue along with the propogation and default behaivour if not stopped
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# Returning false stops propogation/prevents default. You cannot always use the event object to call these methods
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# Because most Meteor event handlers set the event object to the exact context of the event which does not
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# allow you to simply call these methods.
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# --------------------------------------------------------------------------------------------------------------------
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@sendMessage = ->
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message = linkify $('#newMessageInput').val() # get the message from the input box
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unless (message?.length > 0 and (/\S/.test(message))) # check the message has content and it is not whitespace
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return # do nothing if invalid message
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chattingWith = getInSession('inChatWith')
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if chattingWith isnt "PUBLIC_CHAT"
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dest = Meteor.Users.findOne(_id: chattingWith)
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messageForServer = { # construct message for server
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"message": message
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"chat_type": if chattingWith is "PUBLIC_CHAT" then "PUBLIC_CHAT" else "PRIVATE_CHAT"
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"from_userid": getInSession("DBID")
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"from_username": getUsersName()
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"from_tz_offset": "240"
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"to_username": if chattingWith is "PUBLIC_CHAT" then "public_chat_username" else dest.user.name
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"to_userid": if chattingWith is "PUBLIC_CHAT" then "public_chat_userid" else chattingWith
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"from_lang": "en"
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"from_time": getTime()
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"from_color": "0x000000"
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# "from_color": "0x#{getInSession("messageColor")}"
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}
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Meteor.call "sendChatMessagetoServer", getInSession("meetingId"), messageForServer, getInSession("userId")
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$('#newMessageInput').val '' # Clear message box
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Template.chatInput.events
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'click #sendMessageButton': (event) ->
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sendMessage()
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'keypress #newMessageInput': (event) -> # user pressed a button inside the chatbox
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if event.shiftKey and event.which is 13
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$("#newMessageInput").append("\r") # Change newline character
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return
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if event.which is 13 # Check for pressing enter to submit message
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sendMessage()
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$('#newMessageInput').val("")
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return false
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Template.chatInput.rendered = ->
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$('input[rel=tooltip]').tooltip()
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$('button[rel=tooltip]').tooltip()
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Template.chatbar.helpers
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getChatGreeting: ->
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greeting = "Welcome to #{getMeetingName()}!\r\r
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For help on using BigBlueButton see these (short) <a href='http://www.bigbluebutton.org/videos/' target='_blank'>tutorial videos</a>.\r\r
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To join the audio bridge click the headset icon (upper-left hand corner). Use a headset to avoid causing background noise for others.\r\r\r
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This server is running BigBlueButton #{getInSession 'bbbServerVersion'}.\r\r"
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# This method returns all messages for the user. It looks at the session to determine whether the user is in
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#private or public chat. If true is passed, messages returned are from before the user joined. Else, the messages are from after the user joined
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getFormattedMessagesForChat: ->
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friend = chattingWith = getInSession('inChatWith') # the recipient(s) of the messages
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after = before = greeting = []
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if chattingWith is 'PUBLIC_CHAT' # find all public messages
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before = Meteor.Chat.find({'message.chat_type': chattingWith, 'message.from_time': {$lt: String(getTimeOfJoining())}}).fetch()
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after = Meteor.Chat.find({'message.chat_type': chattingWith, 'message.from_time': {$gt: String(getTimeOfJoining())}}).fetch()
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greeting = [
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'message':
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'message': Template.chatbar.getChatGreeting(),
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'from_username': 'System',
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'from_time': getTimeOfJoining()
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'from_color': '0x3399FF' # A nice blue in hex
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]
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else
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me = getInSession("DBID")
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after = Meteor.Chat.find({ # find all messages between current user and recipient
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'message.chat_type': 'PRIVATE_CHAT',
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$or: [{'message.from_userid': me, 'message.to_userid': friend},{'message.from_userid': friend, 'message.to_userid': me}]
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}).fetch()
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messages = (before.concat greeting).concat after
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getCombinedMessagesForChat: ->
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msgs = Template.chatbar.getFormattedMessagesForChat()
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len = msgs.length # get length of messages
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i = 0
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while i < len # Must be a do while, for loop compiles and stores the length of array which can change inside the loop!
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if msgs[i].message.from_userid isnt 'System' # skip system messages
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j = i+1 # Start looking at messages right after the current one
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while j < len
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deleted = false
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if msgs[j].message.from_userid isnt 'System' # Ignore system messages
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# Check if the time discrepancy between the two messages exceeds window for grouping
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if (parseFloat(msgs[j].message.from_time)-parseFloat(msgs[i].message.from_time)) >= 60000 # 60 seconds/1 minute
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break # Messages are too far between, so them seperated and stop joining here
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if msgs[i].message.from_userid is msgs[j].message.from_userid # Both messages are from the same user
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msgs[i].message.message += "\\n#{msgs[j].message.message}" # Combine the messages
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msgs.splice(j,1) # Delete the message from the collection
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deleted = true
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else break # Messages are from different people, move on
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#
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else break # This is the break point in the chat, don't merge
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#
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len = msgs.length
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++j if not deleted
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#
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++i
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len = msgs.length
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msgs
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detectUnreadChat: ->
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#if the current tab is not the same as the tab we just published in
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Meteor.Chat.find({}).observe({
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added: (chatMessage) =>
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findDestinationTab = ->
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if chatMessage.message?.chat_type is "PUBLIC_CHAT"
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"PUBLIC_CHAT"
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else
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chatMessage.message?.from_userid
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populateChatTabs() # check if we need to open a new tab
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destinationTab = findDestinationTab()
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if destinationTab isnt getInSession "inChatWith"
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chatTabs.update({userId: destinationTab}, {$set: {gotMail: true}})
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})
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# When chatbar gets rendered, scroll to the bottom
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Template.chatbar.rendered = ->
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Template.chatbar.detectUnreadChat()
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$('#chatbody').scrollTop($('#chatbody')[0]?.scrollHeight)
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false
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# Scrolls the message container to the bottom. The number of pixels to scroll down is the height of the container
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Handlebars.registerHelper "autoscroll", ->
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$('#chatbody').scrollTop($('#chatbody')[0]?.scrollHeight)
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false
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Template.optionsBar.events
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'click .private-chat-user-entry': (event) -> # clicked a user's name to begin private chat
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setInSession 'display_chatPane', true
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setInSession "inChatWith", @_id
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Template.optionsBar.rendered = ->
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$('div[rel=tooltip]').tooltip()
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Template.optionsFontSize.events
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"click .fontSizeSelector": (event) ->
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selectedFontSize = parseInt(event.target.id)
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if selectedFontSize
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setInSession "messageFontSize", selectedFontSize
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else setInSession "messageFontSize", 12
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Template.tabButtons.events
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'click .close': (event) -> # user closes private chat
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setInSession 'inChatWith', 'PUBLIC_CHAT'
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setInSession 'display_chatPane', true
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id = chatTabs.findOne({userId: @userId})
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if id?
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chatTabs.remove(id)
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Meteor.call("deletePrivateChatMessages", getInSession("userId"), @userId)
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return false # stops propogation/prevents default
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'click .optionsChatTab': (event) ->
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setInSession 'display_chatPane', false
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'click .privateChatTab': (event) ->
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setInSession 'display_chatPane', true
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'click .publicChatTab': (event) ->
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setInSession 'display_chatPane', true
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'click .tab': (event) ->
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setInSession "inChatWith", @userId
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'click .gotUnreadMail': (event) ->
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chatTabs.update({userId: @userId}, {$set: {gotMail: false}})
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Template.tabButtons.helpers
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makeTabButton: -> # create tab button for private chat or other such as options
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safeClass = @class.replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>').replace(/"/g, '"');
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safeName = @name.replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>').replace(/"/g, '"');
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button = '<li '
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button += 'class="'
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button += 'active ' if getInSession("inChatWith") is @userId
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button += 'gotUnreadMail ' if @gotMail
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button += "tab #{safeClass}\"><a href=\"#\" data-toggle=\"tab\" id=\"#{safeName}\" >#{safeName}"
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button += ' <button class="close closeTab" type="button" >×</button>' if @class is 'privateChatTab'
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button += '</a></li>'
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button
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Template.message.helpers
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activateBreakLines: (str) ->
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res = str.replace /\\n/gim, '<br/>'
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res = res.replace /\r/gim, '<br/>'
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# make links received from Flash client clickable in HTML
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toClickable: (str) ->
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res = str.replace /<a href='event:/gim, "<a target='_blank' href='"
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res = res.replace /<a href="event:/gim, '<a target="_blank" href="'
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toClockTime: (epochTime) ->
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if epochTime is null
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return ""
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local = new Date()
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offset = local.getTimezoneOffset()
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epochTime = epochTime - offset * 60000 # 1 min = 60 s = 60,000 ms
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dateObj = new Date(epochTime)
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hours = dateObj.getUTCHours()
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minutes = dateObj.getUTCMinutes()
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if minutes < 10
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minutes = "0" + minutes
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hours + ":" + minutes
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sanitizeAndFormat: (str) ->
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# First, replace replace all tags with the ascii equivalent (excluding those involved in anchor tags)
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res = str.replace(/&/g, '&').replace(/<(?![au\/])/g, '<').replace(/\/([^au])>/g, '$1>').replace(/([^=])"(?!>)/g, '$1"');
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res = Template.message.toClickable res
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res = Template.message.activateBreakLines res
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