codecombat/app/views/play/level/level_chat_view.coffee

126 lines
3.7 KiB
CoffeeScript

View = require 'views/kinds/CocoView'
template = require 'templates/play/level/chat'
{me} = require 'lib/auth'
LevelBus = require 'lib/LevelBus'
module.exports = class LevelChatView extends View
id: 'level-chat-view'
template: template
open: false
events:
'keypress textarea': 'onChatKeydown'
'click i': 'onIconClick'
subscriptions:
'bus:new-message': 'onNewMessage'
constructor: (options) ->
@levelID = options.levelID
@session = options.session
@listenTo(@session, 'change:multiplayer', @updateMultiplayerVisibility)
@sessionID = options.sessionID
@bus = LevelBus.get(@levelID, @sessionID)
super()
@regularlyClearOldMessages()
@playNoise = _.debounce(@playNoise, 100)
updateMultiplayerVisibility: ->
return unless @$el?
@$el.toggle Boolean @session.get('multiplayer')
afterRender: ->
@chatTables = $('table', @$el)
@updateMultiplayerVisibility()
regularlyClearOldMessages: ->
@clearOldMessagesInterval = setInterval(@clearOldMessages, 5000)
clearOldMessages: =>
rows = $('.closed-chat-area tr')
for row in rows
row = $(row)
added = row.data('added')
if new Date().getTime() - added > 60 * 1000
row.fadeOut(1000, -> $(this).remove())
onNewMessage: (e) ->
@$el.show() unless e.message.system
@addOne(e.message)
@trimClosedPanel()
@playNoise() if e.message.authorID isnt me.id
playNoise: ->
Backbone.Mediator.publish 'play-sound', trigger: "chat_received"
messageObjectToJQuery: (message) ->
td = $('<td></td>')
content = message.content
content = _.string.escapeHTML(content)
content = content.replace(/\n/g, "<br/>")
content = content.replace(RegExp(' ', 'g'), "&nbsp; ") # coffeescript can't compile "/ /g"
if _.string.startsWith(content, '/me')
content = message.authorName + content.slice(3)
if message.system
td.append($('<span class="system"></span>').html(content))
else if _.string.startsWith(content, '/me')
td.append($('<span class="action"></span>').html(content))
else
td.append($('<strong></strong>').text(message.authorName+': '))
td.append($('<span></span>').html(content))
tr = $('<tr></tr>')
tr.addClass('me') if message.authorID is me.id
tr.append(td)
addOne: (message) ->
return if message.system and message.authorID is me.id
if @open
openPanel = $('.open-chat-area', @$el)
height = openPanel.outerHeight()
distanceFromBottom = openPanel[0].scrollHeight - height - openPanel[0].scrollTop
doScroll = distanceFromBottom < 10
tr = @messageObjectToJQuery(message)
tr.data('added', new Date().getTime())
@chatTables.append(tr)
@scrollDown() if doScroll
trimClosedPanel: ->
closedPanel = $('.closed-chat-area', @$el)
limit = 5
rows = $('tr', closedPanel)
for row, i in rows
break if rows.length - i <= limit
row.remove()
onChatKeydown: (e) ->
if key.isPressed('enter')
message = _.string.strip($(e.target).val())
return false unless message
@bus.sendMessage(message)
$(e.target).val('')
return false
onIconClick: ->
@open = not @open
openPanel = $('.open-chat-area', @$el).toggle @open
closedPanel = $('.closed-chat-area', @$el).toggle not @open
@scrollDown() if @open
if window.getSelection?
sel = window.getSelection()
sel.empty?()
sel.removeAllRanges?()
else
document.selection.empty()
scrollDown: ->
openPanel = $('.open-chat-area', @$el)[0]
openPanel.scrollTop = openPanel.scrollHeight or 1000000
destroy: ->
key.deleteScope('level')
clearInterval @clearOldMessagesInterval if @clearOldMessagesInterval
super()