Forward pointer wheel event from scrollbar to scrollviewer #16398
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You can test this PR using the following package version. |
maxkatz6
added
backport-candidate-11.1.x
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You can test this PR using the following package version. |
| // We need to handle pointer wheel event to allow scrolling with the pointer wheel. So we raise the event on the scrollviewer's presenter | ||
| if(!e.Handled && _owner?.Presenter is { } presenter) | ||
| { | ||
| presenter.RaiseEvent(e); |
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By re-raising the same RoutedEventArgs, this will change the observable RoutedEventArgs.Source and Route, so parent listeners will have wrong information to act on (e.g. Tunnel mode in a middle of a Bubble).
I think a copy of the event should be raised instead to avoid this.
The original event probably needs to be marked as handled if the copy is handled.
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You can test this PR using the following package version. |
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You can test this PR using the following package version. |
What does the pull request do?
Raises PointerWheelEvent on the scrollviewer's presenter by ScrollBar when it receives a PointerWheelChanged event.
What is the current behavior?
What is the updated/expected behavior with this PR?
How was the solution implemented (if it's not obvious)?
Checklist
Breaking changes
Obsoletions / Deprecations
Fixed issues
Fixes #16372