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