Standardize window.orientation API #271
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- Add Window interface extension with orientation attribute and onorientationchange handler - Integrate orientationchange event firing into existing screen orientation change steps - Map window.orientation values according to WHATWG compat spec algorithm - Support required values (-90, 0, 90) and optional 180° value - Remove device-specific restrictions to support device-independent web This moves window.orientation from WHATWG compat spec to Screen Orientation spec where it belongs conceptually, providing a single authoritative definition. Fixes #249
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marcoscaceres
commented
Nov 11, 2025
| partial interface Window { | ||
| readonly attribute short orientation; | ||
| attribute EventHandler onorientationchange; | ||
| }; |
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This moves window.orientation from WHATWG compat spec to Screen Orientation spec where it belongs conceptually, providing a single authoritative definition.
Fixes #249
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