app/assets/javascripts/backbone/views/popup/_popup.js.coffee
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 Xmpp.Views.Popup ||= {}
 
 class Xmpp.Views.Popup.PopupView extends Backbone.View
   superTemplate: JST["backbone/templates/popup/popup"]
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   el: $('#js-popups')
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   @popups = {}
 
   constructor: ->
     super
     PopupView.popups[@cid] = this
 
   superEvents: ->
     result = {}
     result["click .#{@className} .close"] = 'close'
     result
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   render: (childHtml) ->
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     $(@el).find('.popup').hide()
     _.each(PopupView.popups, (view) ->
       view.undelegateEvents()
     )
 
     thisView = PopupView.popups[@cid]
     thisView.delegateEvents()
 
     $(@el).append(@superTemplate(inside: childHtml, class: @className))
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   close: (e) ->
     e.preventDefault()
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     @remove(e)
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   remove: (e) ->
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     @stopListening()
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     @undelegateEvents()
     $(e.currentTarget).closest('.popup').remove()
 
     delete PopupView.popups[@cid]
 
     firstFoundView = _.find(PopupView.popups, (view) -> view) # najde prvy view
     if firstFoundView
       $(@el).find('.popup').first().show()
       firstFoundView.delegateEvents()