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fix(flyout): Keep flyouts above the on-screen keyboard - #26060
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Xiaoy312
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The approach follows WinUI closely and looks right to me. Checked against the WinUI sources: the sticky m_bHandledFocusElementInView, the unconditional input-pane subtraction in CalculateAvailableWindowRect, CalendarDatePicker being the only DisablePresenterResizing caller, and a resized presenter not following its content (OnPresenterSizeChanged is skipped while m_presenterResized) all match. The resize loop also terminates.
CI: Analyze (csharp) fails on two analyzer errors from this PR (inline below). UnoFastDevBuild turns analyzers off, which is why local builds didn't catch them. The Android+NativeAOT failure is NU1903 on the ILCompiler rc.2 package; it fails the same way on master, so it isn't this PR.
Coverage: ResizeToFit now applies to every FlyoutBase on every Skia target, keyboard or not. That includes CommandBarFlyout, TextCommandBarFlyout (the text-selection flyout), and SplitButton/DropDownButton menus, while only Given_InputPane, Given_Flyout and Given_MenuFlyout were run. Could you run the CommandBarFlyout, TextCommandBarFlyout and TextBox context-flyout tests, and check the screenshot-compare results?
The new Given_Flyout.When_Flyout_Fits_On_No_Side_Then_Resized_Inside_Window has no platform condition, so it also runs on native WinUI. That's a useful parity check, but it hasn't been run there yet.
Review based on the diff and the WinUI sources; I didn't build or run it locally.
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Thanks for the review, @Xiaoy312. I've replied inline. Here are answers to the points in the summary. CI:
Coverage: I ran these locally on Skia Desktop (macOS) against the PR head:
That's 348 tests across 49 classes: 332 passed, 15 skipped (existing platform conditions) and 1 failed.
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The build 243758 found UI Test snapshots differences: Details
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Follow-up on CI for e84d9e0, @Xiaoy312:
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Brings e84d9e0 (WinUI's flyout margin overflow) from #26060. FindDescendant<T> now uses pattern matching instead of a class constraint: DependencyObject is an interface on 6.x but a class on WinAppSDK, where "where T : class, DependencyObject" fails with CS0450. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Manual servicing/6.8 backport of #26060 at c52767a, adapted to the 6.x layout: - The InputPane change goes into InputPane.skia.cs, where 6.x keeps it. - Paths: Uno.UI.Runtime.Skia.WebAssembly.Browser, Uno.UI.RuntimeTests/Tests, SamplesApp.Samples/Windows_UI_ViewManagement. - Boxer.Box (7.0 only) becomes a plain SetValue. - The iOS native PickerFlyoutPopupPanel override takes the new minSize parameter. - The new Given_Flyout test skips the 6.x native heads, which master doesn't have. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Brings e84d9e0 (WinUI's flyout margin overflow) from #26060. FindDescendant<T> now uses pattern matching instead of a class constraint: DependencyObject is an interface on 6.x but a class on WinAppSDK, where "where T : class, DependencyObject" fails with CS0450. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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The build 243921 found UI Test snapshots differences: Details
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fix(flyout): Keep flyouts above the on-screen keyboard (backport #26060)
…latform#26060) Manual servicing/6.8 backport of unoplatform#26060 at c52767a, adapted to the 6.x layout: - The InputPane change goes into InputPane.skia.cs, where 6.x keeps it. - Paths: Uno.UI.Runtime.Skia.WebAssembly.Browser, Uno.UI.RuntimeTests/Tests, SamplesApp.Samples/Windows_UI_ViewManagement. - Boxer.Box (7.0 only) becomes a plain SetValue. - The iOS native PickerFlyoutPopupPanel override takes the new minSize parameter. - The new Given_Flyout test skips the 6.x native heads, which master doesn't have. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> (cherry picked from commit a0dd2ae)
…m#26060 Brings 5686c7d (mobile CI flyout tests) and d565b0b (WinUI resize test) from unoplatform#26060. The FindDescendant<T> helper also gets a class constraint: on 6.x, DependencyObject is an interface, so "as T" doesn't compile without it. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> (cherry picked from commit 90dc007)
Brings e84d9e0 (WinUI's flyout margin overflow) from unoplatform#26060. FindDescendant<T> now uses pattern matching instead of a class constraint: DependencyObject is an interface on 6.x but a class on WinAppSDK, where "where T : class, DependencyObject" fails with CS0450. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> (cherry picked from commit cfd3944)
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#561
PR Type:
🐞 Bugfix
What changed? 🚀
Before: on mobile web (iPad Safari, Android Chrome), a flyout is placed against the whole window. The on-screen keyboard covers it when its button sits near the bottom, or when the flyout holds a TextBox the user is typing in.
Now:
FlyoutBase.CalculateAvailableWindowRectsubtractsInputPane.OccludedRect, as WinUI does.UnoRootElementLogicstands in for WinUI'sRootScrollViewer::NotifyInputPaneStateChange.EnsuredFocusedElementInViewkeeps control, as in WinUI.InputPaneHandler.ResizeToFit, ported inFlyoutBase.Placement.mux.cs.CalendarDatePickeropts out, as in WinUI.TODO UnoinPopupPanel.Placement.csmarks this.resizeandscrolltogether.fix(wasm): Report window activation and visibility changes), that blur raisedWindow.Activated(Deactivated), andPopupRootclosed every light-dismiss popup.Windows.UI.ViewManagement/SoftKeyboardFlyoutTests. It shows the keyboard rect, plus the bounds of the open flyout with "Above keyboard: yes/no".Not covered: only FlyoutBase-hosted popups avoid the keyboard. A bare
Popupand the editableComboBoxdropdown are unchanged.Backports: the iOS activation commits (
fix(wasm): Keep popups open on iOS keyboard hide,fix(wasm): Only skip the keyboard blur on iOS) fix a regression from 4ebc924. That commit is onmasterandservicing/6.8, but not on 6.7, so the 6.7 backport doesn't need them.Validation
Given_InputPane,Given_FlyoutandGiven_MenuFlyoutgave 101 passed, 2 skipped (existing platform conditions), 0 failed.Manual steps
Open
?sample=Windows.UI.ViewManagement/SoftKeyboardFlyoutTestson a tablet, in portrait and in landscape:PR Checklist ✅
Screenshots Compare Test Runresults.No public API changes. These are behaviour changes:
ResizeToFitnow applies on every Skia target.PopupPanel(flyouts and tooltips) whose target lies partly beyond the available area is placed against that area's edge, whether or not a keyboard is up. A target scrolled partly out of the visible bounds now has its popup pinned to that edge.Window.Activatedno longer reports Deactivated when the on-screen keyboard is dismissed.🤖 Generated with Claude Code