Re: QT webview will not go fullscreen

[Benoît Minisini <benoit.minisini@xxxxxxxxxxxxxxxx>]

Le 06/06/2025 à 18:29, Bruce Steers a écrit :
> |WebView1.Settings.UserAgent = ||"Mozilla"|
> |WebView1.Url = ||"https://www.ardmediathek.de/live <https:// 
> www.ardmediathek.de/live>"|
> |
> |
> does not go fullscreen with the following error message
>
> |js: 'HTMLVideoElement.webkitSupportsFullscreen' is deprecated. Please 
> use 'Document.fullscreenEnabled' instead.
>
> |
>
> It seems okay with GTK3
> actually with QT loading the above URL gives quite a few warning/errors...
>
> js: The disableRemotePlayback attribute should be used in order to 
> disable the default Cast integration instead of using -internal-media- 
> controls-overlay-cast-button selector. See https://www.chromestatus.com/ 
> feature/5714245488476160 <https://www.chromestatus.com/ 
> feature/5714245488476160> for more details.
> js: Error: Minified React error #421; visit https://reactjs.org/docs/ 
> error-decoder.html?invariant=421 <https://reactjs.org/docs/error- 
> decoder.html?invariant=421> for the full message or use the non-minified 
> dev environment for full errors and additional helpful warnings.
> js: Error: Minified React error #418; visit https://reactjs.org/docs/ 
> error-decoder.html?invariant=418 <https://reactjs.org/docs/error- 
> decoder.html?invariant=418> for the full message or use the non-minified 
> dev environment for full errors and additional helpful warnings.
> js: Error: Minified React error #418; visit https://reactjs.org/docs/ 
> error-decoder.html?invariant=418 <https://reactjs.org/docs/error- 
> decoder.html?invariant=418> for the full message or use the non-minified 
> dev environment for full errors and additional helpful warnings.
> js: Error: Minified React error #418; visit https://reactjs.org/docs/ 
> error-decoder.html?invariant=418 <https://reactjs.org/docs/error- 
> decoder.html?invariant=418> for the full message or use the non-minified 
> dev environment for full errors and additional helpful warnings.
> js: Error: Minified React error #418; visit https://reactjs.org/docs/ 
> error-decoder.html?invariant=418 <https://reactjs.org/docs/error- 
> decoder.html?invariant=418> for the full message or use the non-minified 
> dev environment for full errors and additional helpful warnings.
> js: Error: Minified React error #422; visit https://reactjs.org/docs/ 
> error-decoder.html?invariant=422 <https://reactjs.org/docs/error- 
> decoder.html?invariant=422> for the full message or use the non-minified 
> dev environment for full errors and additional helpful warnings.
> js: The AudioContext was not allowed to start. It must be resumed (or 
> created) after a user gesture on the page. https://goo.gl/7K7WLu 
> <https://goo.gl/7K7WLu>
> js: Uncaught TypeError: Cannot read property 'media' of undefined
> js: Uncaught ReferenceError: t is not defined
> js: 'HTMLVideoElement.webkitSupportsFullscreen' is deprecated. Please 
> use 'Document.fullscreenEnabled' instead.
>
> Respects
> BruceS

As the WebView control is Chrome inside a widget, there is no reason 
that browser fullscreen should be supported. It may or may not.

GTK+ and Qt implementations are based on different versions of Chrome (a 
fast moving target that often breaks backward compatibility), different 
versions of Javascript, and provide different APIs.

So depending on which toolkit you use and which version, you will never 
have the same behaviour, the same warnings, and alas Gambas can do 
nothing against that.

--
Benoît Minisini.