| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
System.Taffybar.Widget.Generic.PollingLabel
Description
This is a simple text widget that updates its contents by calling a callback at a set interval.
Documentation
Arguments
| :: MonadIO m | |
| => String | Initial value for the label |
| -> Double | Update interval (in seconds) |
| -> IO String | Command to run to get the input string |
| -> m Widget |
Create a new widget that updates itself at regular intervals. The function
pollingLabelNew initialString cmd interval
returns a widget with initial text initialString. The widget forks a thread
to update its contents every interval seconds. The command should return a
string with any HTML entities escaped. This is not checked by the function,
since Pango markup shouldn't be escaped. Proper input sanitization is up to
the caller.
If the IO action throws an exception, it will be swallowed and the label will not update until the update interval expires.