Comments (2)
Already found out.
from chrome-remote-interface-haskell.
It turned out like this:
import Control.Monad.Trans (liftIO)
import Data.Foldable (traverse_)
import Chrome.Target.Client
import Chrome.Target.Async (waitFor, onEvent, stopEventListener)
import qualified Chrome.API.Page as Page
import qualified Chrome.API.Page.Types as PageTypes
import qualified Chrome.API.Network as Network
import Data.ByteString.Base64 (decode)
import Data.ByteString as B
import Data.ByteString.Char8 as C8
takeScreenshot :: String -> String -> TargetClient ()
takeScreenshot url outputFileName = do
traverse_ waitFor [Page.enable, Network.enable Network.defaultEnableParams]
let screenshotParams = PageTypes.CaptureScreenshotParams "png" 0 True
waitFor $ Page.navigate url
waitFor $ Page.onLoadEventFired
result <- waitFor $ Page.captureScreenshot screenshotParams
liftIO $ writeData result
traverse_ waitFor [Page.disable, Network.disable]
where
writeData (Left error) = print error
writeData (Right event) = writeDecodedData . decode . C8.pack $ PageTypes._screenshotData event
writeDecodedData (Left error) = print error
writeDecodedData (Right event) = B.writeFile outputFileName event
from chrome-remote-interface-haskell.
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from chrome-remote-interface-haskell.