Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 77e1c9a36e2f641f82aace43d14cac5a59b95a84
      
https://github.com/WebKit/WebKit/commit/77e1c9a36e2f641f82aace43d14cac5a59b95a84
  Author: Lily Spiniolas <[email protected]>
  Date:   2026-06-17 (Wed, 17 Jun 2026)

  Changed paths:
    M Source/WTF/wtf/PlatformEnable.h
    M Source/WTF/wtf/cocoa/RuntimeApplicationChecksCocoa.h
    M Source/WTF/wtf/cocoa/RuntimeApplicationChecksCocoa.mm
    M Source/WTF/wtf/spi/darwin/dyldSPI.h
    M Source/WebKit/UIProcess/API/Cocoa/WKWebView.mm
    M Source/WebKit/UIProcess/API/Cocoa/WKWebViewInternal.h
    M Source/WebKit/UIProcess/API/mac/WKWebViewMac.mm
    M Source/WebKit/UIProcess/API/mac/WKWebViewPrivateForTestingMac.h
    M Source/WebKit/UIProcess/API/mac/WKWebViewTestingMac.mm
    M Source/WebKit/UIProcess/mac/WebViewImpl.h
    M Source/WebKit/UIProcess/mac/WebViewImpl.mm
    M Tools/TestWebKitAPI/Tests/WebKit/WKWebView/ObscuredContentInsets.mm

  Log Message:
  -----------
  [macOS] Scroll pocket not visible in fullscreen
https://bugs.webkit.org/show_bug.cgi?id=316705
rdar://173814042

Reviewed by Wenson Hsieh.

Adopt `fullScreenTitlebarOverlayHeight` so that AppKit opts WKWebView into
the new fullscreen pocket path, allowing us to render a pocket in the titlebar
area. Adjust the height of the scroll pocket according to the titlebar overlay
height that AppKit reports.

Test: Tools/TestWebKitAPI/Tests/WebKit/WKWebView/ObscuredContentInsets.mm

* Source/WTF/wtf/PlatformEnable.h:
* Source/WTF/wtf/cocoa/RuntimeApplicationChecksCocoa.h:
* Source/WTF/wtf/cocoa/RuntimeApplicationChecksCocoa.mm:
(WTF::computeSDKAlignedBehaviors):
* Source/WTF/wtf/spi/darwin/dyldSPI.h:
* Source/WebKit/UIProcess/API/Cocoa/WKWebView.mm:
(-[WKWebView _scrollPocketInFullscreenEnabled]):
* Source/WebKit/UIProcess/API/Cocoa/WKWebViewInternal.h:
* Source/WebKit/UIProcess/API/mac/WKWebViewMac.mm:
(-[WKWebView respondsToSelector:]):
(-[WKWebView fullScreenTitlebarOverlayHeight]):
(-[WKWebView setFullScreenTitlebarOverlayHeight:]):
* Source/WebKit/UIProcess/API/mac/WKWebViewPrivateForTestingMac.h:
* Source/WebKit/UIProcess/API/mac/WKWebViewTestingMac.mm:
(-[WKWebView _fullScreenTitlebarOverlayHeightForTesting]):
* Source/WebKit/UIProcess/mac/WebViewImpl.h:
* Source/WebKit/UIProcess/mac/WebViewImpl.mm:
(WebKit::WebViewImpl::setFullScreenTitlebarOverlayHeight):
(WebKit::WebViewImpl::updateScrollPocket):
* Tools/TestWebKitAPI/Tests/WebKit/WKWebView/ObscuredContentInsets.mm:
(TestWebKitAPI::TEST(ObscuredContentInsets, 
ScrollPocketCoversFullScreenTitlebar)):

Canonical link: https://commits.webkit.org/315414@main



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