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class @ZenMode
@fullscreen_prefix = 'fullscreen_'
constructor: ->
@active_zen_area = null
@active_checkbox = null
@scroll_position = 0
$(window).scroll =>
if not @active_checkbox
@scroll_position = window.pageYOffset
$('body').on 'change', '.zennable input[type=checkbox]', (e) =>
checkbox = e.currentTarget
if checkbox.checked
# Disable other keyboard shortcuts in ZEN mode
Mousetrap.pause()
@udpateActiveZenArea(checkbox)
else
@exitZenMode()
$(document).on 'keydown', (e) =>
if e.keyCode is $.ui.keyCode.ESCAPE
@exitZenMode()
e.preventDefault()
$(window).on 'hashchange', @updateZenModeFromLocationHash
udpateActiveZenArea: (checkbox) =>
@active_checkbox = $(checkbox)
@active_checkbox.prop('checked', true)
@active_zen_area = @active_checkbox.parent().find('textarea')
@active_zen_area.focus()
window.location.hash = ZenMode.fullscreen_prefix + @active_checkbox.prop('id')
# Disable dropzone in ZEN mode
Dropzone.forElement('.div-dropzone').disable()
exitZenMode: =>
if @active_zen_area isnt null
Mousetrap.unpause()
@active_checkbox.prop('checked', false)
@active_zen_area = null
@active_checkbox = null
window.location.hash = ''
window.scrollTo(window.pageXOffset, @scroll_position)
# Enable dropzone when leaving ZEN mode
Dropzone.forElement('.div-dropzone').enable()
checkboxFromLocationHash: (e) ->
id = $.trim(window.location.hash.replace('#' + ZenMode.fullscreen_prefix, ''))
if id
return $('.zennable input[type=checkbox]#' + id)[0]
else
return null
updateZenModeFromLocationHash: (e) =>
checkbox = @checkboxFromLocationHash()
if checkbox
@udpateActiveZenArea(checkbox)
else
@exitZenMode()
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