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Tims-Chat/file/js/jCounter.jQuery.coffee
2013-01-29 22:15:20 +01:00

50 lines
1.4 KiB
CoffeeScript

###
# jCounter - a simple character counter
#
# @author Maximilian Mader
# @copyright 2011 Maximilian Mader
# @license Creative Commons Attribution-NonCommercial-ShareAlike <http://creativecommons.org/licenses/by-nc-sa/3.0/legalcode>
# @package jQuery.jCounter
###
(($) ->
$.fn.jCounter = (container, options) ->
options = $.extend
max: 0
counterClass: 'jCounter'
countUp: false
width: '100%'
, options
max = if @.attr('maxlength')? then @.attr 'maxlength' else options.max
if not container?
@.addClass 'jCounterInput'
@.wrap("""<div class="jCounterContainer" style="width: #{options.width}"><div></div></div>""").parent().append """<div class="#{options.counterClass} color-1">#{max}</div>"""
jCounterContainer = $(@).parent().children ".#{options.counterClass}"
else
jCounterContainer = if typeof container is 'object' then container else $ container
@.on 'keypress keyup', $.proxy () ->
length = if options.countUp then @.val().length else max - @.val().length
if options.countUp && max > 0
if length < max / 2
color = 1
else if max / 2 < length <= max / 1.2
color = 2
else
color = 3
else if options.countUp
color = 1
else
if max / 2 < length
color = 1
else if max / 6 <= length <= max / 2
color = 2
else
color = 3
jCounterContainer.text(length).removeClass().addClass "#{options.counterClass} color-#{color}"
, @
)(jQuery)