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Contents
# @mixin
Joosy.Modules.Page_Scrolling =
included: ->
#
# Sets the position where page will be scrolled to after load.
#
# @note If you use animated scroll joosy will atempt to temporarily fix the
# height of your document while scrolling to prevent jump effect.
#
# @param [jQuery] element Element to scroll to
# @param [Hash] options
#
# @option options [Integer] speed Sets the animation duration (500 is default)
# @option options [Integer] margin Defines the margin from element position.
# Can be negative.
#
@scroll = (element, options={}) ->
@::__scrollElement = element
@::__scrollSpeed = options.speed || 500
@::__scrollMargin = options.margin || 0
@paint (complete) ->
@__fixHeight() if @__scrollElement && @__scrollSpeed != 0
complete()
@afterLoad ->
@__performScrolling() if @__scrollElement
#
# Scrolls page to stored positions
#
__performScrolling: ->
scroll = $(@__extractSelector @__scrollElement).offset()?.top + @__scrollMargin
Joosy.Modules.Log.debugAs @, "Scrolling to #{@__extractSelector @__scrollElement}"
$('html, body').animate {scrollTop: scroll}, @__scrollSpeed, =>
if @__scrollSpeed != 0
@__releaseHeight()
#
# Freezes the page height through $(html).
#
# Required to implement better {Joosy.Page.scroll} behavior.
#
__fixHeight: ->
$('html').css 'min-height', $(document).height()
#
# Undo {#__fixHeight}
#
__releaseHeight: ->
$('html').css 'min-height', ''
Version data entries
13 entries across 13 versions & 1 rubygems