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Update jquery.infinite-pages.js.coffee for turbolinks #13

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Update jquery.infinite-pages.js.coffee for turbolinks #13

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51 changes: 26 additions & 25 deletions app/assets/javascripts/jquery.infinite-pages.js.coffee
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,7 @@ Released under the MIT License
(($, window) ->
# Define the plugin class
class InfinitePages

# Default settings
defaults:
debug: false # set to true to log messages to the console
Expand All @@ -25,44 +25,44 @@ Released under the MIT License
state:
paused: false
loading: false

# Constructs the new InfinitePages object
#
# container - the element containing the infinite table and pagination links
constructor: (container, options) ->
@options = $.extend({}, @defaults, options)
@$container = $(container)
@container = '.'+container.className;
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This introduces new dependencies on the container argument. With your change it look like it has to be a DOM element with a class name instead of a jQuery CSS selector

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Your right, it would take more work to make it a generic selector.

@$table = $(container).find('table')

@init()

# Setup and bind to related events
init: ->

# Debounce scroll event to improve performance
scrollTimeout = null
scrollHandler = (=> @check())

$(window).scroll ->
if scrollTimeout
clearTimeout(scrollTimeout)
scrollTimeout = null
scrollTimeout = setTimeout(scrollHandler, 250)

# Internal helper for logging messages
_log: (msg) ->
console?.log(msg) if @options.debug

# Check the distance of the nav selector from the bottom of the window and fire
# load event if close enough
check: ->
nav = @$container.find(@options.navSelector)
nav = $(@container).find(@options.navSelector)
if nav.size() == 0
@_log "No more pages to load"
else
windowBottom = $(window).scrollTop() + $(window).height()
distance = nav.offset().top - windowBottom

if @options.state.paused
@_log "Paused"
else if @options.state.loading
Expand All @@ -71,56 +71,57 @@ Released under the MIT License
@_log "#{distance - @options.buffer}px remaining..."
else
@next() # load the next page

# Load the next page
next: ->
if @options.state.done
@_log "Loaded all pages"
else
@_loading()

$.getScript(@$container.find(@options.navSelector).attr('href'))
$.getScript($(@container).find(@options.navSelector).attr('href'))
.done(=> @_success())
.fail(=> @_error())

_loading: ->
@options.state.loading = true
@_log "Loading next page..."
if typeof @options.loading is 'function'
@$container.find(@options.navSelector).each(@options.loading)
$(@container).find(@options.navSelector).each(@options.loading)

_success: ->
@options.state.loading = false
@_log "New page loaded!"
if typeof @options.success is 'function'
@$container.find(@options.navSelector).each(@options.success)
$(@container).find(@options.navSelector).each(@options.success)

_error: ->
@options.state.loading = false
@_log "Error loading new page :("
if typeof @options.error is 'function'
@$container.find(@options.navSelector).each(@options.error)
$(@container).find(@options.navSelector).each(@options.error)

# Pause firing of events on scroll
pause: ->
@options.state.paused = true
@_log "Scroll checks paused"

# Resume firing of events on scroll
resume: ->
@options.state.paused = false
@_log "Scroll checks resumed"
@check()

# Define the plugin
$.fn.extend infinitePages: (option, args...) ->

@each ->
$this = $(this)
data = $this.data('infinitepages')

if !data

$this.data 'infinitepages', (data = new InfinitePages(this, option))
if typeof option == 'string'
data[option].apply(data, args)

) window.jQuery, window