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Xiaoy312
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LGTM. The deferral is sound: ancestors still can't tap twice (the GestureEventsAlreadyRaised flag is still set during the bubble, before each ancestor's ProcessUpEvent), DoubleTapped is correctly left alone since it's recognized on press, and ending an input session that never started is a no-op (ImeSessionCoordinator.End ignores a non-active host). Nice side effect: the root no longer calls ReleaseCaptures mid-bubble, which used to reset the thread-static dispatch result and drop VisualTreeAltered flags.
A few non-blocking notes inline, plus:
- Could you run
Given_UIElement_GestureEventOrderagainstmasterto confirm it fails before the fix? The description says it wasn't, and that's the main change. - Commits 3 and 4 are the same change reworked, so squash-merging seems right.
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The 5 that pass guard behavior the base already had: Tapped raised by the hit element itself, which was already raised after the bubble, the two "not raised twice" tests, and the throwing Commits 3 and 4 are squashed into ff3a6be, and the review fixes are the two commits on top. |
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🟡 Changes recommended
The browser TextBox tests dispose provider overrides before releasing focused input, risking cleanup under the wrong providers and IME state leaking into later tests.
1 open issue
What changed in this PR
This PR aligns managed-pointer gesture ordering with WinUI to prevent ScrollViewer focus changes from overriding tap handlers and briefly opening platform text input.
Changes:
- Defers
Tapped,RightTapped, and related context requests untilPointerReleasedfinishes bubbling. - Delays platform text input until release processing completes and ignores stale text-control focus events.
- Adds runtime tests for gesture ordering, focus retention, and keyboard/input activation.
| File | Description |
|---|---|
| src/Uno.UI/UI/Xaml/UIElement.Pointers.cs | Routes tap gestures through release deferral. |
| src/Uno.UI/UI/Xaml/Internal/InputManager.Pointers.Managed.cs | Coordinates deferred gestures and release-completion actions. |
| src/Uno.UI/UI/Xaml/Internal/InputManager.Pointers.cs | Delays pointer-up cleanup until gestures finish. |
| src/Uno.UI/UI/Xaml/Controls/TextBoxCore/TextBoxCore.Input.cs | Defers platform input activation and adds a notification test hook. |
| src/Uno.UI/UI/Xaml/Controls/TextBoxCore/TextBoxCore.cs | Defers keyboard re-show notifications and ignores stale focus events. |
| src/Uno.UI/UI/Xaml/Controls/TextBox/TextBox.Properties.cs | Exposes the notification provider test hook. |
| src/Uno.UI/UI/Xaml/Controls/TextBox/TextBox.cs | Passes focus event arguments to shared handling. |
| src/Uno.UI/UI/Xaml/Controls/PasswordBox/PasswordBox.cs | Passes focus event arguments to shared handling. |
| src/Uno.UI.RuntimeTests/Microsoft/UI/Xaml/Given_UIElement.GestureEventOrder.cs | Tests gesture ordering, capture cleanup, and focus retention. |
| src/Uno.UI.RuntimeTests/Microsoft/UI/Xaml/Controls/Given_TextBox.skia.cs | Tests deferred platform input activation and re-show notifications. |
| src/Uno.UI.RuntimeTests/Microsoft/UI/Xaml/Controls/Given_TextBox.cs | Tests that stale focus events do not trigger scrolling. |
| src/Uno.UI.RuntimeTests/Microsoft/UI/Xaml/Controls/Given_PasswordBox.cs | Adds the equivalent stale-focus scrolling regression test. |
Review effort: Balanced
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@Mergifyio backport servicing/6.8 |
✅ Backports have been createdDetails
Cherry-pick of d09ed95 has failed: Cherry-pick of 76232b4 has failed: Cherry-pick of 82f9274 has failed: To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally |
…r-25818 fix(input): Raise Tapped and RightTapped after PointerReleased bubbles (backport #25818)
…ress-context-flyout-22229 Conflicts with the iOS touch editing work (unoplatform#25619) and the deferred release handling (unoplatform#25818): - TextBoxCore.pointers.cs: the hold handled in OnHolding now goes through master's iOS path (HandleTouchHold_iOS, once per press with the 0.5 s hold timer) and Android's ToTouchTextPoint; a release after either is not a tap. - InputManager.Pointers.Managed.cs: the release stops the delayed context menu at the start of OnPointerReleasedCore. - Given_TextBox.skia.cs: both new iOS tests kept.
Takes Uno's servicing/6.8 from 6951c2c up to 5254ace (42 pull requests). Conflicts, by area: IME and TextBox (unoplatform#25984, backport of unoplatform#25804; unoplatform#25952, backport of unoplatform#25619; unoplatform#25976, backport of unoplatform#25818) - Takes upstream's composition design (unoplatform#25804): the browser's input is the source of truth for the text, compositions included. This drops the composition parts of the unoplatform#24502 port (90746b8): its TypeScript composition handling, the StartIndex/TextChangePending event arguments, the IsReadOnly forwarding to the hidden input, and its Given_TextBox.BrowserSoftKeyboard tests. - Keeps the non-IME browser fixes on top of it, in the form their master pull requests have on unoplatform#25804: Enter raised once per press and tracked by key code (unoplatform#25174, with Given_TextBox.BrowserEnterKey from master in place of the Enter tests that lived in the dropped file), the iOS refocus on tap (unoplatform#25185), pastes without text and isIOS from BrowserInputHelper. - Moves the unoplatform#26005 MaxLength fixes onto unoplatform#25804's native input path, as master has them: a refused browser edit keeps the TextBox's selection, TextBoxView.UpdateTextFromNative reports whether the edit went in, and the IME keeps its range on the applied text (master be85699, which d226897 had ported onto the unoplatform#24502 IME). Adds that commit's browser and platform-applied IME tests. - TextBox.pointers.skia.cs: upstream's file (unoplatform#25619 iOS touch editing, unoplatform#25818, unoplatform#25804), with the unoplatform#25126 port (the hold acts when it starts, a touch right-tap keeps the caret) in the form master's unoplatform#25126 branch has it on unoplatform#25619, including focusing before the iOS hold timer acts and its iOS not-focusable test. Pointers (unoplatform#25976, backport of unoplatform#25818) - Tapped and RightTapped are raised once the PointerReleased bubbled (unoplatform#25818), with the unoplatform#25732 port's window coordinates (2-argument routed event args, RawPosition for ContextRequested), as master's unoplatform#25732 branch has them. - The release wrapper of unoplatform#25818 keeps the unoplatform#25126 port's StopContextMenuTimer at the start of the release. DependencyObject (unoplatform#26142, backport of unoplatform#26123) - Takes upstream, then the code of unoplatform#25839 (97a2f17), which replaces this branch's unoplatform#25102 ports (800247f, be41da6, fd40bf9, 7546379). DependencyObjectStore.Binder.cs, .alc.cs, Application.Alc.cs, ResourceDictionary.alc.cs and their tests now match unoplatform#25839; this drops 800247f's own SingleParentNonFE_Parent_Removes_Value_Then_Next_Parent_Starts_Clean test, which unoplatform#25839 doesn't have. Imaging (unoplatform#25597, unoplatform#25915, unoplatform#25911, unoplatform#25897) - Keeps this branch's side: it has the later forms of these fixes (unoplatform#25124, unoplatform#25559, unoplatform#25633 and unoplatform#26370 ports), where upstream has the 6.8-only unoplatform#25597 design and earlier snapshots. Upstream's shared download, IgnoreImageCache and failed-load fixes are covered by SharedImageDecode. Adds upstream's When_Source_Outlives_Brushes test. ToolTip (unoplatform#26098, backport of unoplatform#25137 and unoplatform#26096) - Keeps this branch's unoplatform#25137 port and adds unoplatform#26096 in master's form: the service releases only a ToolTip it opened, and leaves one the app opened during the show delay to the app. Keeps both sides' tests. Flyout (unoplatform#26062, backport of unoplatform#26060) - This branch had the same commits already; keeps the "Keep non-resizable flyouts in window" port and its tests. Also removes a helper pair in Given_AccessibleTextBox that both sides added.

GitHub Issue: closes unoplatform/kahua-private#559
PR Type:
🐞 Bugfix
What changed? 🚀
On Skia heads (managed pointers),
TappedandRightTappedwere raised whilePointerReleasedwas still bubbling to the ancestors of the tapped element. WinUI raises them only oncePointerReleasedhas reached the root (CInputServices::RaiseDelayedPointerUpEvent).That broke a common case: an element inside a
ScrollViewerwhoseTappedhandler opens a flyout or moves the focus, while the focus is outside theScrollViewer. TheScrollViewerhandled the release after the flyout took the focus, so it took the focus back for its firstTextBox, and thatTextBoxscrolled itself into view on its lateGotFocus. On an Android tablet the page jumped to the top and the soft keyboard flashed.Gesture order (Skia, managed pointers)
TappedandRightTapped, and theContextRequestedthat followsRightTapped, are raised oncePointerReleasedhas bubbled to the root, like WinUI. They're still raised before the captures are released (PointerCaptureLost), and an ancestor isn't tapped twice.DoubleTappedis unchanged: like in WinUI, it's raised on the second press, when no release is in progress.PointerReleasedhandler, and the release still completes.TextBox and PasswordBox
TextBoxorPasswordBoxwhoseGotFocusis raised after the focus already moved on no longer brings itself into view.RichEditBoxalready ignores such aGotFocus, as WinUI'sTextBoxBase::OnGotFocusdoes.ScrollViewerstill focuses its first text input for an instant during the release. The platform text input is now started only once the pointer release has completed, and not at all if the focus has moved away by then. This covers the soft keyboard on Android, the hidden<input>on WebAssembly and the IME session. It removes the keyboard flash on Android, and on the web the hidden input's focus and blur, which made Chrome's autofill bar flicker.TextBoxnotifies the platform again, to re-show a soft keyboard the user hid. That notification is deferred the same way.This builds on the fix-ready report, patches and runtime tests attached to the issue. The gesture deferral is reworked to live on the
InputManager, per pointer release, and extended to the platform text input.Validation
Given_UIElement_GestureEventOrder,Given_TextBoxandGiven_PasswordBox: 311 passed, 8 skipped, 2 inconclusive, 2 failed. The 2 failures (When_Multiline_Pointer_Tap,When_Pointer_RightClick_Selection, caret off by one) fail the same way on the base commit on this machine.Given_UIElement_GestureEventOrderand the TextBox family (Given_TextBox,Given_PasswordBox,Given_ImeSessionCoordinator,Given_AutoSuggestBox,Given_NumberBox): 312 passed, 0 failed, 65 skipped (other platforms). This ran before the re-show deferral was added.Given_UIElement_GestureEventOrder, run on the base commitab14387c90with only the test file added: 8 of 13 cases fail. These are Tapped raised by an ancestor of the hit element (mouse and touch), Tapped beforePointerCaptureLost(both rows), RightTapped by mouse and by touch hold, and theScrollViewerfocus case (mouse and touch). The 5 that pass guard behavior the base already had: Tapped raised by the hit element itself, which was already raised after the bubble, the two "not raised twice" tests, and the throwingContextRequestedhandler.PointerReleasedand the browser input started on focus. The 3 cases expected to fail did fail: thePointerExitedtest, and theScrollViewertest for bothTextBoxandPasswordBox.TextBoxstill opens the keyboard.Not verified
InputPane.skia.csbrings a captured element into view without checking it still has the focus. It's the same pattern, but it's not needed here and isn't changed.PR Checklist ✅
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