/
channels.js.coffee
153 lines (113 loc) · 5.1 KB
/
channels.js.coffee
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class Kandan.Helpers.Channels
@options:
autoScrollThreshold: 0.90
maxActivities: 5
@replaceCreateButton: ()->
$tabNav = $(".create_channel").parent().parent()
$createButton = $(".create_channel").parent().html()
$tabNav.find(".create_channel").parent().remove()
$tabNav.append("<li>"+$createButton+"</li>")
@pastAutoScrollThreshold: (channelId)->
currentPosition = @currentScrollPosition channelId
totalHeight = $(document).height() - $(window).height()
scrollPercentage = (currentPosition) / (totalHeight)
scrollPercentage > @options.autoScrollThreshold
@scrollToLatestMessage: (channelId)->
console.log("scrolling to last message");
$(document).scrollTop($(document).height()+9000)
@currentScrollPosition: (channelId)->
console.log("current scroll position");
$(document).scrollTop()
@channel_activities_el: (channelId)->
$("#channel-activities-#{channelId}")
@channel_pagination_el: (channelId)->
$("#channels-#{channelId} .pagination")
@selected_tab: ()->
$('#channels').tabs('option', 'selected')
@getActiveChannelId: ()->
if $(document).data('active_channel_id') == undefined
return $("#channels .ui-tabs-panel")
.eq(@selected_tab())
.data('channel_id')
else
return $(document).data('active_channel_id')
@confirmDeletion: ()->
reply = confirm("Really delete the channel?")
return reply
@flushActivities: (channelId)->
$channelActivities = $("#channel-activities-#{channelId}")
if $channelActivities.children().length == @options.maxActivities + 1
oldest = $channelActivities.children().first().data("activity_id")
$channelActivities.children().first().remove()
$channelActivities.prev().data("oldest", oldest)
@confirmAndDeleteChannel: (channel, tabIndex)->
return false if @confirmDeletion() == false
channel.destroy({success: ()=>
$("#channels").tabs("remove", tabIndex)
})
@getChannelIdByTabIndex: (tabIndex)->
$("#channels .ui-tabs-panel")
.eq(tabIndex)
.data('channel_id')
@getTabIndexByChannelId: (channelId)->
$("#channels-#{channelId}").prevAll("div").length
@deleteChannelById: (channelId)->
if @channelExists(channelId)
tabIndex = @getTabIndexByChannelId(channelId)
@deleteChannelByTabIndex(tabIndex, true)
@deleteChannelByTabIndex: (tabIndex, deleted)->
deleted = deleted || false
console.log "try deleting #{tabIndex}"
channelId = @getChannelIdByTabIndex(tabIndex)
console.log "d ", channelId
channel = new Kandan.Models.Channel({id: channelId})
return @confirmAndDeleteChannel(channel, tabIndex) if not deleted
console.log "TAB INDEX", tabIndex
$("#channels").tabs("remove", tabIndex)
@channelExists: (channelId)->
return true if $("#channels-#{channelId}").length > 0
false
@createChannelArea: (channel)->
channelArea = "#channels-#{channel.get('id')}"
totalTabs = $("#channels").tabs("length")
$("#channels").tabs('add', channelArea, "#{channel.get("name")}", totalTabs)
Kandan.Helpers.Channels.replaceCreateButton()
view = new Kandan.Views.ChannelPane({channel: channel})
view.render $(channelArea)
$(channelArea).data('channel_id', channel.get('id'))
@new_activity_view: (activityAttributes)->
activity = new Kandan.Models.Activity(activityAttributes)
activityView = new Kandan.Views.ShowActivity({activity: activity})
return activityView
@createChannelIfNotExists: (activityAttributes)->
if activityAttributes.channel && (not @channelExists(activityAttributes.channel_id))
@createChannelArea(new Kandan.Models.Channel(activityAttributes.channel))
@add_activity: (activityAttributes, state)->
@createChannelIfNotExists(activityAttributes)
if activityAttributes.channel_id
@add_message(activityAttributes, state)
else
@add_notification(activityAttributes)
channelId = activityAttributes.channel_id || @getActiveChannelId()
@scrollToLatestMessage(channelId) if @pastAutoScrollThreshold(channelId)
@add_message: (activityAttributes, state)->
@channel_activities_el(activityAttributes.channel_id)
.append(@new_activity_view(activityAttributes).render().el)
@set_pagination_data(activityAttributes.channel_id)
@flushActivities(activityAttributes.channel_id)
@add_notification: (activityAttributes)->
$channelElements = $(".channel-activities")
activityAttributes["created_at"] = new Date()
for el in $channelElements
$(el).append(@new_activity_view(activityAttributes).render().el)
@flushActivities($(el).parent().data("channel_id"))
@set_pagination_state: (channelId, moreActivities, oldest)->
@channel_pagination_el(channelId).data('oldest', oldest)
if moreActivities == true
@channel_pagination_el(channelId).show()
else
@channel_pagination_el(channelId).hide()
@set_pagination_data: (channel_id)->
$oldest_activity = @channel_activities_el(channel_id).find(".activity").first()
if $oldest_activity.length != 0
@channel_pagination_el(channel_id).data('oldest', $oldest_activity.data('activity_id'))