git-annex/Assistant/WebApp/SideBar.hs
2015-01-21 12:50:09 -04:00

109 lines
3.5 KiB
Haskell

{- git-annex assistant webapp sidebar
-
- Copyright 2012 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
{-# LANGUAGE QuasiQuotes, TemplateHaskell, OverloadedStrings #-}
module Assistant.WebApp.SideBar where
import Assistant.Common
import Assistant.WebApp
import Assistant.WebApp.Types
import Assistant.WebApp.Notifications
import Assistant.Alert.Utility
import Assistant.DaemonStatus
import Utility.NotificationBroadcaster
import Utility.Yesod
import Data.Text (Text)
import qualified Data.Text as T
import qualified Data.Map as M
import Control.Concurrent
sideBarDisplay :: Widget
sideBarDisplay = do
let content = do
{- Add newest alerts to the sidebar. -}
alertpairs <- liftH $ M.toList . alertMap
<$> liftAssistant getDaemonStatus
mapM_ renderalert $
take displayAlerts $ reverse $ sortAlertPairs alertpairs
let ident = "sidebar"
$(widgetFile "sidebar/main")
autoUpdate ident NotifierSideBarR (10 :: Int) (10 :: Int)
where
bootstrapclass :: AlertClass -> Text
bootstrapclass Activity = "alert-info"
bootstrapclass Warning = "alert"
bootstrapclass Error = "alert-danger"
bootstrapclass Success = "alert-success"
bootstrapclass Message = "alert-info"
renderalert (aid, alert) = do
let alertid = show aid
let closable = alertClosable alert
let block = alertBlockDisplay alert
let divclass = bootstrapclass $ alertClass alert
let message = renderAlertMessage alert
let messagelines = T.lines message
let multiline = length messagelines > 1
let buttons = zip (alertButtons alert) [1..]
$(widgetFile "sidebar/alert")
{- Called by client to get a sidebar display.
-
- Returns a div, which will be inserted into the calling page.
-
- Note that the head of the widget is not included, only its
- body is. To get the widget head content, the widget is also
- inserted onto all pages.
-}
getSideBarR :: NotificationId -> Handler Html
getSideBarR nid = do
waitNotifier getAlertBroadcaster nid
{- This 0.1 second delay avoids very transient notifications from
- being displayed and churning the sidebar unnecesarily.
-
- This needs to be below the level perceptable by the user,
- to avoid slowing down user actions like closing alerts. -}
liftIO $ threadDelay 100000
page <- widgetToPageContent sideBarDisplay
withUrlRenderer $ [hamlet|^{pageBody page}|]
{- Called by the client to close an alert. -}
getCloseAlert :: AlertId -> Handler ()
getCloseAlert = liftAssistant . removeAlert
{- When an alert with a button is clicked on, the button takes us here. -}
getClickAlert :: AlertId -> Int -> Handler ()
getClickAlert i bnum = do
m <- alertMap <$> liftAssistant getDaemonStatus
case M.lookup i m of
Just (Alert { alertButtons = bs })
| length bs >= bnum -> do
let b = bs !! (bnum - 1)
{- Spawn a thread to run the action
- while redirecting. -}
case buttonAction b of
Nothing -> noop
Just a -> liftIO $ void $ forkIO $ a i
redirect $ buttonUrl b
| otherwise -> redirectBack
_ -> redirectBack
htmlIcon :: AlertIcon -> Widget
htmlIcon ActivityIcon = [whamlet|<img src="@{StaticR activityicon_gif}" alt="">|]
htmlIcon SyncIcon = [whamlet|<img src="@{StaticR syncicon_gif}" alt="">|]
htmlIcon InfoIcon = bootstrapIcon "info-sign"
htmlIcon SuccessIcon = bootstrapIcon "ok"
htmlIcon ErrorIcon = bootstrapIcon "exclamation-sign"
htmlIcon UpgradeIcon = bootstrapIcon "arrow-up"
htmlIcon ConnectionIcon = bootstrapIcon "signal"
bootstrapIcon :: Text -> Widget
bootstrapIcon name = [whamlet|<span .glyphicon .glyphicon-#{name}>|]