Bug 216395

Summary: "display-mode: fullscreen" media query should match in fullscreen browser windows
Product: WebKit Reporter: Simon Fraser (smfr) <simon.fraser>
Component: CSSAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: jer.noble, johan, ntim, simon.fraser, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: Safari Technology Preview   
Hardware: Unspecified   
OS: Unspecified   
URL: http://output.jsbin.com/sizejuw/quiet

Attachments
Radar WebKit Bug Importer
Comment 1 2020-09-10 19:36:56 PDT
Johan Brook
Comment 2 2023-01-18 00:37:49 PST
We're having a real problem of not being able to distinguish macOS fullscreen mode from normal a "maximised" browser window. We've tried various techniques of measuring the window width/height and comparing with window.screen values, but it yields inconsistent results for laptop and external monitor screens. Ideally, the test below (http://output.jsbin.com/sizejuw/quiet) would say "Fullscreen: Yes" when a Safari window is put in macOS fullscreen mode. That CSS Media Query could also be used from Javascript. Second best, there'd be a Javascript API in the Fullscreen API spec for this (the existing APIs only seem to concern themselves with putting specific elements into fullscreen – not the window itself).
Note You need to log in before you can comment on or make changes to this bug.