Reflex.Dom.Contrib.Utils

Misc reflex-dom helper functions.

Documentation

alertEvent :: MonadWidget t m => (a -> String) -> Event t a -> m ()

Convenient function that pops up a javascript alert dialog box when an event fires with a message to display.

js_alert :: JSString -> IO ()

confirmEvent :: MonadWidget t m => (a -> String) -> Event t a -> m (Event t a)

Convenient function that pops up a javascript confirmation dialog box when an event fires with a message to display.

js_confirm :: JSString -> IO Bool

getWindowLocationPath :: Window -> IO String

Gets the current path of the DOM Window (i.e., the contents of the address bar after the host, beginning with a "/"). https://developer.mozilla.org/en-US/docs/Web/API/Location

windowHistoryPushState :: String -> IO ()

Pushes a new URL to the window history.

setWindowLoc :: String -> IO ()

widgetHoldHelper :: MonadWidget t m => (a -> m b) -> a -> Event t a -> m (Dynamic t b)

A common form for widgetHold calls that mirrors the pattern seen in hold and holdDyn.

putDebugLn :: MonadWidget t m => String -> m ()

Simple debug function that prints a message on postBuild.

putDebugLnE :: MonadWidget t m => Event t a -> (a -> String) -> m ()

Prints a string when an event fires. This differs slightly from traceEvent because it will print even if the event is otherwise unused.

listWithKeyAndSelection :: forall t m k v a. (MonadWidget t m, Ord k) => Dynamic t k -> Dynamic t (Map k v) -> (k -> Dynamic t v -> Dynamic t Bool -> m a) -> m (Dynamic t (Map k a))

A generalized version of the one in reflex-dom.

waitUntilJust :: IO (Maybe a) -> IO a

Simple utility function to robustly get things like the current window, DOM document, document body, etc.