engine/app/assets/javascripts/locomotive/views/shared/fields/file_view.js.coffee

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Locomotive.Views.Shared ||= {}
Locomotive.Views.Shared.Fields ||= {}
class Locomotive.Views.Shared.Fields.FileView extends Backbone.View
tagName: 'span'
className: 'file'
states:
change: false
delete: false
events:
'click a.change': 'toggle_change'
'click a.delete': 'toggle_delete'
template: ->
ich["#{@options.name}_file_input"]
render: ->
url = @model.get("#{@options.name}_url") || ''
data =
filename: url.split('/').pop()
url: url
$(@el).html(@template()(data))
# only in HTML 5
@$('input[type=file]').bind 'change', (event) =>
input = $(event.target)[0]
if input.files?
name = $(input).attr('name')
hash = {}
hash[name.replace("#{@model.paramRoot}[", '').replace(/]$/, '')] = input.files[0]
@model.set(hash)
return @
refresh: ->
@$('input[type=file]').unbind 'change'
@states = { 'change': false, 'delete': false }
@render()
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reset: ->
@model.set_attribute @options.name, null
@model.set_attribute "#{@options.name}_url", null
@refresh()
toggle_change: (event) ->
@_toggle event, 'change',
on_change: =>
@$('a:first').hide() & @$('input[type=file]').show() & @$('a.delete').hide()
on_cancel: =>
@$('a:first').show() & @$('input[type=file]').hide() & @$('a.delete').show()
toggle_delete: (event) ->
@_toggle event, 'delete',
on_change: =>
@$('a:first').addClass('deleted') & @$('a.change').hide()
@$('input[type=hidden].remove-flag').val('1')
@model.set_attribute("remove_#{@options.name}", true)
on_cancel: =>
@$('a:first').removeClass('deleted') & @$('a.change').show()
@$('input[type=hidden].remove-flag').val('0')
@model.set_attribute("remove_#{@options.name}", false)
_toggle: (event, state, options) ->
event.stopPropagation() & event.preventDefault()
button = $(event.target)
label = button.attr('data-alt-label')
unless @states[state]
options.on_change()
else
options.on_cancel()
button.attr('data-alt-label', button.html())
button.html(label)
@states[state] = !@states[state]
remove: ->
@$('input[type=file]').unbind 'change'
super