837cd79e4f
also broke out webapp types into a separate module
59 lines
1.9 KiB
Haskell
59 lines
1.9 KiB
Haskell
{- git-annex assistant webapp notifications
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-
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- Copyright 2012 Joey Hess <joey@kitenet.net>
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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{-# LANGUAGE TypeFamilies, QuasiQuotes, MultiParamTypeClasses, TemplateHaskell, OverloadedStrings, RankNTypes #-}
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module Assistant.WebApp.Notifications where
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import Assistant.Common
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import Assistant.WebApp
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import Assistant.WebApp.Types
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import Assistant.DaemonStatus
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import Utility.NotificationBroadcaster
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import Utility.Yesod
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import Yesod
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import Data.Text (Text)
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import qualified Data.Text as T
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{- Add to any widget to make it auto-update using long polling.
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-
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- The widget should have a html element with an id=ident, which will be
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- replaced when it's updated.
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-
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- The geturl route should return the notifier url to use for polling.
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-
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- ms_delay is how long to delay between AJAX updates
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- ms_startdelay is how long to delay before updating with AJAX at the start
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-}
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autoUpdate :: Text -> Route WebApp -> Int -> Int -> Widget
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autoUpdate ident geturl ms_delay ms_startdelay = do
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let delay = show ms_delay
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let startdelay = show ms_startdelay
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addScript $ StaticR longpolling_js
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$(widgetFile "notifications/longpolling")
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{- Notifier urls are requested by the javascript, to avoid allocation
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- of NotificationIds when noscript pages are loaded. This constructs a
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- notifier url for a given Route and NotificationBroadcaster.
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-}
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notifierUrl :: (NotificationId -> Route WebApp) -> (DaemonStatus -> NotificationBroadcaster) -> Handler RepPlain
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notifierUrl route selector = do
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(urlbits, _params) <- renderRoute . route <$> newNotifier selector
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webapp <- getYesod
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return $ RepPlain $ toContent $ T.concat
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[ "/"
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, T.intercalate "/" urlbits
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, "?auth="
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, secretToken webapp
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]
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getNotifierTransfersR :: Handler RepPlain
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getNotifierTransfersR = notifierUrl TransfersR transferNotifier
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getNotifierSideBarR :: Handler RepPlain
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getNotifierSideBarR = notifierUrl SideBarR alertNotifier
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