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Code Issues Releases Wiki Activity

Automagically disable scrolling when user scrolls

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This commit is contained in:
Tim Düsterhus 2012-01-28 15:40:33 +01:00
parent 8f6b7c5e12
commit c1fac59618
1 changed files with 21 additions and 4 deletions
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25
file/js/TimWolla.WCF.Chat.coffee
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@ -18,6 +18,7 @@ TimWolla.WCF ?= {}
isActive: true
autocompleteOffset: 0
autocompleteValue: null
scrollHeightTopDiff: null
events:
newMessage: $.Callbacks()
userMenu: $.Callbacks()
@ -72,6 +73,7 @@ TimWolla.WCF ?= {}
, @
$('#chatInput').keydown $.proxy (event) ->
# tab key
if event.keyCode is 9
event.preventDefault()
if @autocompleteValue is null
@ -104,6 +106,12 @@ TimWolla.WCF ?= {}
element.data 'status', 1
icon.attr 'src', icon.attr('src').replace /disabled(\d?).([a-z]{3})$/, 'enabled$1.$2'
element.attr 'title', element.data 'disableMessage'
$('#chatAutoscroll').click (event) ->
$(this).removeClass('hot')
if $(this).data 'status'
$('.chatMessageContainer').scrollTop $('.chatMessageContainer ul').height()
if typeof window.webkitNotifications isnt 'undefined'
$('#chatNotify').click (event) ->
window.webkitNotifications.requestPermission() if $(this).data 'status'
@ -182,7 +190,7 @@ TimWolla.WCF ?= {}
fish.animate
top: '+=' + top
left: '+=' + left
, 1000
, 1e3
, 1.5e3);
###
# Loads new messages.
@ -201,6 +209,13 @@ TimWolla.WCF ?= {}
# @param array<object> messages
###
handleMessages: (messages) ->
# disable scrolling automagically when user manually scrolled
if @scrollHeightTopDiff isnt null
if @scrollHeightTopDiff isnt $('.chatMessageContainer ul').height() - $('.chatMessageContainer').scrollTop()
if $('#chatAutoscroll').data('status') is 1
$('#chatAutoscroll').click()
$('#chatAutoscroll').addClass('hot').fadeOut('slow').fadeIn('slow')
for message in messages
@events.newMessage.fire message
@ -211,9 +226,11 @@ TimWolla.WCF ?= {}
li.append output
li.appendTo $ '.chatMessageContainer ul'
$('.chatMessageContainer').animate
scrollTop: $('.chatMessageContainer ul').height()
, 1000
# autoscroll down
if $('#chatAutoscroll').data('status') is 1
$('.chatMessageContainer').scrollTop $('.chatMessageContainer ul').height()
@scrollHeightTopDiff = $('.chatMessageContainer ul').height() - $('.chatMessageContainer').scrollTop()
handleUsers: (users) ->
foundUsers = {}
for user in users