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###
# ownCloud news app
#
# @author Alessandro Cosentino
# @author Bernhard Posselt
# Copyright (c) 2012 - Alessandro Cosentino <cosenal@gmail.com>
# Copyright (c) 2012 - Bernhard Posselt <nukeawhale@gmail.com>
#
# This file is licensed under the Affero General Public License version 3 or
# later.
#
# See the COPYING-README file
#
###
scrolling = true
markingRead = true
angular.module('News').directive 'whenScrolled',
['$rootScope', 'Config',
($rootScope, Config) ->
return (scope, elm, attr) ->
elm.bind 'scroll', ->
# prevent from doing to many scroll actions
# the first timeout prevents accidental and too early marking as read
if scrolling
scrolling = false
setTimeout ->
scrolling = true
, Config.ScrollTimeout
if markingRead
markingRead = false
setTimeout ->
markingRead = true
# only broadcast elements that are not already read
# and that are beyond the top border
$elems = $(elm).find('.feed_item:not(.read)')
for feedItem in $elems
offset = $(feedItem).position().top
if offset <= -50
id = parseInt($(feedItem).data('id'), 10)
feed = parseInt($(feedItem).data('feed'), 10)
$rootScope.$broadcast('read', {id: id, feed: feed})
else
break
, Config.MarkReadTimeout
scope.$apply attr.whenScrolled
]
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