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91 lines
3.2 KiB
CoffeeScript
91 lines
3.2 KiB
CoffeeScript
_ = require 'underscore-plus'
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Reflux = require 'reflux'
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{Actions} = require 'nylas-exports'
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VERBOSE = false
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DISPLAY_TIME = 3000 # in ms
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uuid_count = 0
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class Notification
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constructor: ({@message, @type, @sticky, @actions, @icon} = {}) ->
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# Check to make sure the provided data is a valid notificaiton, since
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# notifications may be constructed by anyone developing on Edgehill
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throw new Error "No `new` keyword when constructing Notification" unless @ instanceof Notification
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throw new Error "Type must be `info`,`error`, or `success`" unless @type in ['info', 'error', 'success']
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throw new Error "Message must be provided for notification" unless @message
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if @actions
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for action in @actions
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throw new Error "Actions must have an `label`" unless action['label']
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throw new Error "Actions must have an `id`" unless action['id']
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@id = uuid_count++
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@creation = Date.now()
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@sticky ?= false
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unless @sticky
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@expiry = @creation + DISPLAY_TIME
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console.log "Created new notif with #{@id}: #{@message}" if VERBOSE
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@
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valid: ->
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@sticky or @expiry > Date.now()
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toString: ->
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"Notification.#{@constructor.name}(#{@id})"
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module.exports =
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NotificationStore = Reflux.createStore
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init: ->
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@_flush()
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# The notification store listens for user interaction with notififcations
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# and just removes the notifications. To implement notification actions,
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# your package should listen to notificationActionTaken and check the
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# notification and action objects.
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@listenTo Actions.notificationActionTaken, ({notification, action}) =>
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@_removeNotification(notification)()
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@listenTo Actions.postNotification, (data) =>
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@_postNotification(new Notification(data))
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@listenTo Actions.multiWindowNotification, (data={}, context={}) =>
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@_postNotification(new Notification(data)) if @_inWindowContext(context)
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######### PUBLIC #######################################################
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notifications: ->
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console.log(JSON.stringify(@_notifications)) if VERBOSE
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sorted = _.sortBy(_.values(@_notifications), (n) -> -1*(n.creation + n.id))
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_.reject sorted, (n) -> n.sticky
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stickyNotifications: ->
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console.log(JSON.stringify(@_notifications)) if VERBOSE
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sorted = _.sortBy(_.values(@_notifications), (n) -> -1*(n.creation + n.id))
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_.filter sorted, (n) -> n.sticky
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Notification: Notification
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########### PRIVATE ####################################################
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_flush: ->
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@_notifications = {}
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_postNotification: (notification) ->
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console.log "Queue Notification.#{notification}" if VERBOSE
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@_notifications[notification.id] = notification
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if notification.expiry?
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timeoutVal = Math.max(0, notification.expiry - Date.now())
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setTimeout(@_removeNotification(notification), timeoutVal)
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@trigger()
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# Returns a function for removing a particular notification. See usage
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# above in setTimeout()
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_removeNotification: (notification) -> =>
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console.log "Removed #{notification}" if VERBOSE
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delete @_notifications[notification.id]
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@trigger()
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# If the window matches the given context then we can show a
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# notification.
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_inWindowContext: (context={}) ->
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return true
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