fix(iOS): trackpad natural scrolling on macos by ajpinedam · Pull Request #22507 · unoplatform/uno

ajpinedam · 2026-01-29T06:15:03Z

GitHub Issue: closes https://github.com/unoplatform/chorus-private/issues/37

PR Type:

🐞 Bugfix

What is the current behavior? 🤔

What is the new behavior? 🚀

PR Checklist ✅

Please check if your PR fulfills the following requirements:

📝 Commits must be following the Conventional Commits specification.
🧪 Added Runtime tests, UI tests, or a manual test sample for the changes have been added (for bug fixes / features) (if applicable)
📚 Docs have been added/updated which fit documentation template (for bug fixes / features)
🖼️ Validated PR Screenshots Compare Test Run results.
❗ Contains NO breaking changes

Other information ℹ️

Copilot

Pull request overview

Adjusts scroll wheel delta calculation for iOS apps running on macOS so trackpad scrolling respects the user’s “natural scrolling” system setting.

Changes:

Added iOS-only helpers to detect “iOS app on Mac” and read the macOS natural scrolling preference.
Inverted the scroll delta multiplier when natural scrolling is enabled to align gesture-based scrolling direction with macOS settings.

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

src/Uno.UI.Runtime.Skia.AppleUIKit/Devices/Input/AppleUIKitPointerInputSource.cs

unodevops · 2026-01-29T06:35:10Z

🤖 Your WebAssembly Skia Sample App stage site is ready! Visit it here: https://unowasmprstaging.z20.web.core.windows.net/pr-22507/wasm-skia-net9/index.html

unodevops · 2026-01-29T06:39:20Z

🤖 Your Docs stage site is ready! Visit it here: https://unodocsprstaging.z13.web.core.windows.net/pr-22507/docs/index.html

unodevops · 2026-01-29T09:15:59Z

⚠️⚠️ The build 193646 has failed on Uno.UI - CI.

unodevops · 2026-01-29T17:41:51Z

🤖 Your WebAssembly Skia Sample App stage site is ready! Visit it here: https://unowasmprstaging.z20.web.core.windows.net/pr-22507/wasm-skia-net9/index.html

unodevops · 2026-01-29T17:57:57Z

🤖 Your Docs stage site is ready! Visit it here: https://unodocsprstaging.z13.web.core.windows.net/pr-22507/docs/index.html

unodevops · 2026-01-30T02:06:06Z

⚠️⚠️ The build 193722 has failed on Uno.UI - CI.

Copilot

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

src/Uno.UI.Runtime.Skia.AppleUIKit/Devices/Input/TopViewLayer.cs

unodevops · 2026-01-30T04:04:17Z

🤖 Your WebAssembly Skia Sample App stage site is ready! Visit it here: https://unowasmprstaging.z20.web.core.windows.net/pr-22507/wasm-skia-net9/index.html

unodevops · 2026-01-30T04:06:34Z

🤖 Your Docs stage site is ready! Visit it here: https://unodocsprstaging.z13.web.core.windows.net/pr-22507/docs/index.html

unodevops · 2026-01-30T15:59:03Z

🤖 Your WebAssembly Skia Sample App stage site is ready! Visit it here: https://unowasmprstaging.z20.web.core.windows.net/pr-22507/wasm-skia-net9/index.html

unodevops · 2026-01-30T16:00:52Z

🤖 Your Docs stage site is ready! Visit it here: https://unodocsprstaging.z13.web.core.windows.net/pr-22507/docs/index.html

unodevops · 2026-01-31T04:46:02Z

⚠️⚠️ The build 193910 has failed on Uno.UI - CI.

Copilot

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

src/Uno.UI.Runtime.Skia.AppleUIKit/Devices/Input/TopViewLayer.cs

unodevops · 2026-02-01T19:28:39Z

🤖 Your WebAssembly Skia Sample App stage site is ready! Visit it here: https://unowasmprstaging.z20.web.core.windows.net/pr-22507/wasm-skia-net9/index.html

unodevops · 2026-02-01T19:36:13Z

🤖 Your Docs stage site is ready! Visit it here: https://unodocsprstaging.z13.web.core.windows.net/pr-22507/docs/index.html

unodevops · 2026-02-01T22:35:56Z

⚠️⚠️ The build 194117 has failed on Uno.UI - CI.

unodevops · 2026-02-03T04:52:30Z

🤖 Your WebAssembly Skia Sample App stage site is ready! Visit it here: https://unowasmprstaging.z20.web.core.windows.net/pr-22507/wasm-skia-net9/index.html

unodevops · 2026-02-03T05:00:36Z

🤖 Your Docs stage site is ready! Visit it here: https://unodocsprstaging.z13.web.core.windows.net/pr-22507/docs/index.html

ajpinedam self-assigned this Jan 29, 2026

Copilot AI review requested due to automatic review settings January 29, 2026 06:15

github-actions bot added platform/ios 🍎 Categorizes an issue or PR as relevant to the iOS platform area/skia ✏️ Categorizes an issue or PR as relevant to Skia labels Jan 29, 2026

Copilot started reviewing on behalf of ajpinedam January 29, 2026 06:15 View session

Copilot AI reviewed Jan 29, 2026

View reviewed changes

src/Uno.UI.Runtime.Skia.AppleUIKit/Devices/Input/AppleUIKitPointerInputSource.cs Outdated Show resolved Hide resolved

ajpinedam force-pushed the fix/ios.on.mac.trackpad branch from aa29a5c to 6337ef8 Compare January 29, 2026 17:22

Copilot AI review requested due to automatic review settings January 30, 2026 03:44

ajpinedam force-pushed the fix/ios.on.mac.trackpad branch from 6337ef8 to 766c134 Compare January 30, 2026 03:44

Copilot started reviewing on behalf of ajpinedam January 30, 2026 03:45 View session

Copilot AI reviewed Jan 30, 2026

View reviewed changes

src/Uno.UI.Runtime.Skia.AppleUIKit/Devices/Input/TopViewLayer.cs Show resolved Hide resolved

ajpinedam force-pushed the fix/ios.on.mac.trackpad branch from 766c134 to 3112bd9 Compare January 30, 2026 15:39

Copilot AI review requested due to automatic review settings February 1, 2026 19:08

ajpinedam force-pushed the fix/ios.on.mac.trackpad branch from 3112bd9 to 02725c1 Compare February 1, 2026 19:09

Copilot started reviewing on behalf of ajpinedam February 1, 2026 19:09 View session

Copilot AI reviewed Feb 1, 2026

View reviewed changes

src/Uno.UI.Runtime.Skia.AppleUIKit/Devices/Input/TopViewLayer.cs Show resolved Hide resolved

agneszitte requested review from MartinZikmund, Xiaoy312, dr1rrb, kazo0, ramezgerges and spouliot February 2, 2026 23:55

ramezgerges approved these changes Feb 2, 2026

View reviewed changes

ajpinedam added 2 commits February 2, 2026 23:32

fix(iOS): trackpad natural scrolling on macos

8b8fbd1

fix: listen for macOS natural scrolling changes

8d83e5a

ajpinedam force-pushed the fix/ios.on.mac.trackpad branch from 02725c1 to 8d83e5a Compare February 3, 2026 04:32

Xiaoy312 approved these changes Feb 3, 2026

View reviewed changes

kazo0 approved these changes Feb 3, 2026

View reviewed changes

agneszitte merged commit a253e77 into unoplatform:master Feb 3, 2026
45 of 53 checks passed

Comments

Conversation

ajpinedam commented Jan 29, 2026

PR Type:

What is the current behavior? 🤔

What is the new behavior? 🚀

PR Checklist ✅

Other information ℹ️

Uh oh!

Copilot AI left a comment

Choose a reason for hiding this comment

Pull request overview

Uh oh!

Uh oh!

unodevops commented Jan 29, 2026

Uh oh!

unodevops commented Jan 29, 2026

Uh oh!

unodevops commented Jan 29, 2026

Uh oh!

unodevops commented Jan 29, 2026

Uh oh!

unodevops commented Jan 29, 2026

Uh oh!

unodevops commented Jan 30, 2026

Uh oh!

Copilot AI left a comment

Choose a reason for hiding this comment

Pull request overview

Uh oh!

Uh oh!

unodevops commented Jan 30, 2026

Uh oh!

unodevops commented Jan 30, 2026

Uh oh!

unodevops commented Jan 30, 2026

Uh oh!

unodevops commented Jan 30, 2026

Uh oh!

unodevops commented Jan 31, 2026

Uh oh!

Copilot AI left a comment

Choose a reason for hiding this comment

Pull request overview

Uh oh!

Uh oh!

unodevops commented Feb 1, 2026

Uh oh!

unodevops commented Feb 1, 2026

Uh oh!

unodevops commented Feb 1, 2026

Uh oh!

unodevops commented Feb 3, 2026

Uh oh!

unodevops commented Feb 3, 2026

Uh oh!

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

6 participants