diff options
| -rw-r--r-- | Assistant/Threads/WebApp.hs | 82 | ||||
| -rw-r--r-- | static/longpolling.js | 4 | ||||
| -rw-r--r-- | templates/dashboard.hamlet | 10 | ||||
| -rw-r--r-- | templates/longpolling.julius | 7 |
4 files changed, 65 insertions, 38 deletions
diff --git a/Assistant/Threads/WebApp.hs b/Assistant/Threads/WebApp.hs index a9b87ea58..79a388463 100644 --- a/Assistant/Threads/WebApp.hs +++ b/Assistant/Threads/WebApp.hs @@ -36,6 +36,7 @@ import Text.Hamlet import Network.Socket (PortNumber) import Text.Blaze.Renderer.String import Data.Text (Text, pack, unpack) +import qualified Data.Text as T import qualified Data.Map as M import Control.Concurrent.STM @@ -93,6 +94,8 @@ mkYesod "WebApp" [parseRoutes| /noscriptauto NoScriptAutoR GET /transfers/#NotificationId TransfersR GET /sidebar/#NotificationId SideBarR GET +/notifier/transfers NotifierTransfersR GET +/notifier/sidebar NotifierSideBarR GET /closealert/#AlertId CloseAlert GET /config ConfigR GET /addrepository AddRepositoryR GET @@ -136,19 +139,40 @@ instance Yesod WebApp where - - The widget should have a html element with an id=ident, which will be - replaced when it's updated. - - - - Updating is done by getting html from the gethtml route. + - + - The geturl route should return the notifier url to use for polling. - - ms_delay is how long to delay between AJAX updates - ms_startdelay is how long to delay before updating with AJAX at the start -} autoUpdate :: Text -> Route WebApp -> Int -> Int -> Widget -autoUpdate ident gethtml ms_delay ms_startdelay = do +autoUpdate ident geturl ms_delay ms_startdelay = do let delay = show ms_delay let startdelay = show ms_startdelay addScript $ StaticR longpolling_js $(widgetFile "longpolling") +{- Notifier urls are requested by the javascript, to avoid allocation + - of NotificationIds when noscript pages are loaded. This constructs a + - notifier url for a given Route and NotificationBroadcaster. + -} +notifierUrl :: (NotificationId -> Route WebApp) -> (DaemonStatus -> NotificationBroadcaster) -> Handler RepPlain +notifierUrl route selector = do + (urlbits, _params) <- renderRoute . route <$> newNotifier selector + webapp <- getYesod + return $ RepPlain $ toContent $ T.concat + [ "/" + , T.intercalate "/" urlbits + , "?auth=" + , secretToken webapp + ] + +getNotifierTransfersR :: Handler RepPlain +getNotifierTransfersR = notifierUrl TransfersR transferNotifier + +getNotifierSideBarR :: Handler RepPlain +getNotifierSideBarR = notifierUrl SideBarR alertNotifier + {- A display of currently running and queued transfers. - - Or, if there have never been any this run, an intro display. -} @@ -159,7 +183,8 @@ transfersDisplay warnNoScript = do M.toList . currentTransfers <$> liftIO (getDaemonStatus $ daemonStatus webapp) queued <- liftIO $ getTransferQueue $ transferQueue webapp - let ident = transfersDisplayIdent + let ident = "transfers" + autoUpdate ident NotifierTransfersR (10 :: Int) (10 :: Int) let transfers = current ++ queued if null transfers then ifM (lift $ showIntro <$> getWebAppState) @@ -168,9 +193,7 @@ transfersDisplay warnNoScript = do ) else $(widgetFile "transfers") -transfersDisplayIdent :: Text -transfersDisplayIdent = "transfers" - +{- An intro message, and list of repositories. -} introDisplay :: Text -> Widget introDisplay ident = do webapp <- lift getYesod @@ -206,8 +229,8 @@ getTransfersR nid = do page <- widgetToPageContent $ transfersDisplay False hamletToRepHtml $ [hamlet|^{pageBody page}|] -sideBarDisplay :: Bool -> Widget -sideBarDisplay noScript = do +sideBarDisplay :: Widget +sideBarDisplay = do let content = do {- Any yesod message appears as the first alert. -} maybe noop rendermessage =<< lift getMessage @@ -218,14 +241,9 @@ sideBarDisplay noScript = do <$> liftIO (getDaemonStatus $ daemonStatus webapp) mapM_ renderalert $ take displayAlerts $ reverse $ sortAlertPairs alertpairs - ident <- lift newIdent + let ident = "sidebar" $(widgetFile "sidebar") - - unless noScript $ do - {- Set up automatic updates of the sidebar - - when alerts come in. -} - nid <- lift $ newNotifier alertNotifier - autoUpdate ident (SideBarR nid) (10 :: Int) (10 :: Int) + autoUpdate ident NotifierSideBarR (10 :: Int) (10 :: Int) where bootstrapclass Activity = "alert-info" bootstrapclass Warning = "alert" @@ -264,7 +282,7 @@ getSideBarR :: NotificationId -> Handler RepHtml getSideBarR nid = do waitNotifier alertNotifier nid - page <- widgetToPageContent $ sideBarDisplay True + page <- widgetToPageContent sideBarDisplay hamletToRepHtml $ [hamlet|^{pageBody page}|] {- Called by the client to close an alert. -} @@ -273,43 +291,39 @@ getCloseAlert i = do webapp <- getYesod void $ liftIO $ removeAlert (daemonStatus webapp) i -dashboard :: Bool -> Bool -> Widget -dashboard noScript warnNoScript = do - sideBarDisplay noScript - transfersDisplay warnNoScript +{- The main dashboard. -} +dashboard :: Bool -> Widget +dashboard warnNoScript = do + sideBarDisplay + let content = transfersDisplay warnNoScript + $(widgetFile "dashboard") getHomeR :: Handler RepHtml -getHomeR = defaultLayout $ do - {- Set up automatic updates for the transfers display. -} - nid <- lift $ newNotifier transferNotifier - autoUpdate transfersDisplayIdent (TransfersR nid) (10 :: Int) (10 :: Int) - - dashboard False True +getHomeR = defaultLayout $ dashboard True -{- Same as HomeR, except with no javascript, so it doesn't allocate - - new resources each time the page is refreshed, and with autorefreshing - - via meta refresh. -} +{- Same as HomeR, except with autorefreshing via meta refresh. -} getNoScriptAutoR :: Handler RepHtml getNoScriptAutoR = defaultLayout $ do let ident = NoScriptR let delayseconds = 3 :: Int let this = NoScriptAutoR toWidgetHead $(hamletFile $ hamletTemplate "metarefresh") - dashboard True False + dashboard False +{- Same as HomeR, except no autorefresh at all (and no noscript warning). -} getNoScriptR :: Handler RepHtml getNoScriptR = defaultLayout $ - dashboard True True + dashboard False getConfigR :: Handler RepHtml getConfigR = defaultLayout $ do - sideBarDisplay False + sideBarDisplay setTitle "Configuration" [whamlet|<a href="@{HomeR}">main|] getAddRepositoryR :: Handler RepHtml getAddRepositoryR = defaultLayout $ do - sideBarDisplay False + sideBarDisplay setTitle "Add repository" [whamlet|<a href="@{HomeR}">main|] diff --git a/static/longpolling.js b/static/longpolling.js index 5b704acec..965c1d18d 100644 --- a/static/longpolling.js +++ b/static/longpolling.js @@ -1,5 +1,5 @@ -// Uses long-polling to update a div with a specified id, -// by polling an url, which should return a new div, with the same id. +// Updates a div with a specified id, by polling an url, +// which should return a new div, with the same id. connfails=0; diff --git a/templates/dashboard.hamlet b/templates/dashboard.hamlet new file mode 100644 index 000000000..7bcfce962 --- /dev/null +++ b/templates/dashboard.hamlet @@ -0,0 +1,10 @@ +^{content} +$if warnNoScript + <noscript> + <div .navbar .navbar-fixed-bottom> + <div .navbar-inner> + <div .container> + Javascript is disabled; cannot update in real-time. + <div .btn-group> + <a .btn .btn-primary href="@{NoScriptAutoR}">Auto-refresh every 3 seconds # + <a .btn .btn-primary href="@{NoScriptR}">Manually refresh diff --git a/templates/longpolling.julius b/templates/longpolling.julius index 67fe059cf..affa50cc8 100644 --- a/templates/longpolling.julius +++ b/templates/longpolling.julius @@ -1,9 +1,12 @@ function longpoll_#{ident}() { - longpoll('@{gethtml}', '#{ident}' + longpoll(longpoll_#{ident}_url, '#{ident}' , function() { setTimeout(longpoll_#{ident}, #{delay}); } , function() { webapp_disconnected(); } ); } $(function() { - setTimeout(longpoll_#{ident}, #{startdelay}); + $.get("@{geturl}", function(url){ + longpoll_#{ident}_url = url; + setTimeout(longpoll_#{ident}, #{startdelay}); + }); }); |