[GTK] Check window focus with gtk_window_is_active()

[GeorgesStavracas]

7ca356b

[GTK] Check window focus with gtk_window_is_active()
https://bugs.webkit.org/show_bug.cgi?id=258264

Reviewed by Michael Catanzaro.

In GTK3, gtk_widget_has_focus() called on a GtkWindow has the semantics
of "does this window receive input". This semantic is not preserved in
GTK4; instead, gtk_window_is_active() is what yields the same results.

By using gtk_widget_has_focus() in UIGamepadProviderGtk, it always
returned false, and prevented gamepad detection from properly working.
Switch that to gtk_window_is_active().

* Source/WebKit/UIProcess/Gamepad/gtk/UIGamepadProviderGtk.cpp:
(WebKit::UIGamepadProvider::platformWebPageProxyForGamepadInput):

Canonical link: https://commits.webkit.org/273882@main

3180c76

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 wincairo
	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	✅ 🧪 wpe-wk2
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🧪 api-mac	✅ 🧪 api-wpe
	✅ 🧪 ios-wk2-wpt		✅ 🛠 gtk
	✅ 🧪 api-ios	✅ 🧪 mac-wk2	✅ 🧪 gtk-wk2
	✅ 🛠 tv	✅ 🧪 mac-AS-debug-wk2	✅ 🧪 api-gtk
	✅ 🛠 tv-sim
✅ 🛠 🧪 merge	✅ 🛠 watch
	✅ 🛠 watch-sim

[webkit-early-warning-system]

EWS run on previous version of this PR (hash a9630d7)

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
🧪 style	🛠 ios	🛠 mac	🛠 wpe	⏳ 🛠 wincairo
	🛠 ios-sim	🛠 mac-AS-debug	🧪 wpe-wk2
🧪 webkitperl	🧪 ios-wk2	🧪 api-mac	🧪 api-wpe
	🧪 ios-wk2-wpt	🧪 mac-wk1	🛠 gtk
⏳ 🛠 🧪 jsc	🧪 api-ios	🧪 mac-wk2	🧪 gtk-wk2
	⏳ 🛠 tv	🧪 mac-AS-debug-wk2	🧪 api-gtk
	⏳ 🛠 tv-sim	🧪 mac-wk2-stress
	⏳ 🛠 watch
	🛠 watch-sim

[webkit-early-warning-system]

EWS run on current version of this PR (hash 3180c76)

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 wincairo
	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	✅ 🧪 wpe-wk2
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🧪 api-mac	✅ 🧪 api-wpe
	✅ 🧪 ios-wk2-wpt		✅ 🛠 gtk
	✅ 🧪 api-ios	✅ 🧪 mac-wk2	✅ 🧪 gtk-wk2
	✅ 🛠 tv	✅ 🧪 mac-AS-debug-wk2	✅ 🧪 api-gtk
	✅ 🛠 tv-sim
✅ 🛠 🧪 merge	✅ 🛠 watch
	✅ 🛠 watch-sim

[mcatanzaro]

Welcome ;)

[webkit-ews-buildbot]

Safe-Merge-Queue: Build #10856.

[webkit-commit-queue]

Committed 273882@main (7ca356b): https://commits.webkit.org/273882@main

Reviewed commits have been landed. Closing PR #23598 and removing active labels.