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Locate MAUI View for PlatformView #16463

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merged 5 commits into from Aug 10, 2023
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@PureWeen PureWeen commented Jul 31, 2023

Description of Change

Provide an API that allows users to get from a platform view to its IVisualTreeElement counterpart.

Implementation notes

Currently this just uses an Interface to help create points in the visual tree where we can start our search down from instead of always having to search from the window down. There are probably a few ways we could optimize this search via Dictionaries or AttachedProperties on Windows. But for now this just takes a general approach across the three platforms that should be sufficient for the scenarios this will be used in.

Issues Fixed

Fixes #16330

@PureWeen PureWeen changed the title Find element or closest parent element Locate MAUI VIew for PlatformView Jul 31, 2023

namespace Microsoft.Maui
{
interface ICanReturnVisualTreeElement
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At a later point we can look at making this public for 3rd party folks but for now we'll keep it internal.

Most folks I've chatted with start from our MauiView so usually that will work well enough

@PureWeen PureWeen force-pushed the FindElementOrClosestParentElement branch from 8cb0539 to ce1c280 Compare August 1, 2023 22:44
@PureWeen PureWeen marked this pull request as ready for review August 1, 2023 22:45
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Thanks for adding docs though 🥇

@mattleibow mattleibow changed the title Locate MAUI VIew for PlatformView Locate MAUI View for PlatformView Aug 3, 2023
@Eilon Eilon added the area/architecture Issues with code structure, SDK structure, implementation details label Aug 3, 2023
@PureWeen PureWeen requested a review from jknaudt21 August 3, 2023 20:47
@PureWeen PureWeen force-pushed the FindElementOrClosestParentElement branch from be64f0a to 0f809cd Compare August 4, 2023 18:06
@PureWeen PureWeen force-pushed the FindElementOrClosestParentElement branch from 92569ed to 0ae6dc5 Compare August 7, 2023 18:01
@PureWeen PureWeen marked this pull request as draft August 8, 2023 00:46
@PureWeen PureWeen force-pushed the FindElementOrClosestParentElement branch from 0ae6dc5 to 4cab092 Compare August 8, 2023 13:53
@PureWeen PureWeen marked this pull request as ready for review August 8, 2023 13:54
src/Core/src/Core/ICanReturnVisualTreeElement.cs Outdated Show resolved Hide resolved
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This looks great! Thanks for reviewing my snarky comments. Awesome work here!

@samhouts samhouts added this to the .NET 8 GA milestone Aug 9, 2023
@rmarinho rmarinho merged commit 92cb037 into main Aug 10, 2023
39 checks passed
@rmarinho rmarinho deleted the FindElementOrClosestParentElement branch August 10, 2023 09:35
jonathanpeppers added a commit that referenced this pull request Aug 15, 2023
* Add swipe for uitests

* Bump the androidx group with 1 update (#16474)

Bumps the androidx group with 1 update: [Xamarin.AndroidX.RecyclerView](https://github.com/xamarin/AndroidX).

- [Commits](https://github.com/xamarin/AndroidX/commits)

---
updated-dependencies:
- dependency-name: Xamarin.AndroidX.RecyclerView
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: androidx
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Document Element (#16299)

* Begin doc progress

* Document element

* More explicit interface implementations

* Address PR feedback

* Document interfaces + delete xml

* whitespace

* Prevent compile issues

* Document IElementController (and mark as obsolete)

* Remove Obsolete attribute from IElementController

This would break the build in various places - and would go out of scope of the PR

* Document IVusalElementController

Apparently is only for internal use. We can't make it private so the only choice is to mark everything as for internal use only

* Prevent mdoc from breaking

You can't really cref a namespace

* Fixed other crefs

* Address Dave's feedback

* Move powershell pack script into cake (#16588)

* 'pwsh' is broken on net8

PowerShell/PowerShell#19679

* Remove the script

* oops

* Fix Graphics Font comparison method (#15985)

* Fix the issue

* Added more tests

* Updated Impl

* [WinUI] Implement PointerPressed and PointerReleased (#16213)

* Implement on Windows and add unit tests

* Update src/Controls/src/Core/PointerGestureRecognizer.cs

Co-authored-by: Samantha Houts <samhouts@users.noreply.github.com>

---------

Co-authored-by: Samantha Houts <samhouts@users.noreply.github.com>

* [X] Optimize OnPlatform element syntax (#5611)

* [X] Optimize OnPlatform element syntax

- fixes #5583

* Auto-format source code

* don't generate x:Name for removed OnPlatforms

* Update src/Controls/src/SourceGen/Controls.SourceGen.csproj

Co-authored-by: Jonathan Peppers <jonathan.peppers@microsoft.com>

* fix string comparison

---------


Co-authored-by: Jonathan Peppers <jonathan.peppers@microsoft.com>

* [Housekeeping] Add 8.0 preview 7 (#16613)

also adds a checkbox to make it clear if this is a regression or not

* [X] Support DynResources as AppThemeBinding values (#16597)

Because, you know, why not ? It could be useful

- fixes #13619

* [main] Update dependencies from dotnet/xharness (#16600)

* Update dependencies from https://github.com/dotnet/xharness build 20230807.2

Microsoft.DotNet.XHarness.CLI , Microsoft.DotNet.XHarness.TestRunners.Common , Microsoft.DotNet.XHarness.TestRunners.Xunit
 From Version 8.0.0-prerelease.23403.1 -> To Version 8.0.0-prerelease.23407.2

* Run device tests on 16.4

* Force to 16.4

* Skip test that fails on iOS

---------

Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>
Co-authored-by: Rui Marinho <me@ruimarinho.net>

* Adds prompts when creating a new page. (#16331)

* Adds prompts when creating a new page.

* Updates description as per suggested PR comments

* [ios] fix memory leak in GraphicsView (#16605)

Context: #16346

This addresses the memory leak discovered by:

    src/Core/src/Platform/iOS/PlatformTouchGraphicsView.cs(12,29): error MA0002: Member '_hoverGesture' could cause memory leaks in an NSObject subclass. Remove the member, store the value as a WeakReference, or add the [UnconditionalSuppressMessage("Memory", "MA0002")] attribute with a justification as to why the member will not leak.

I could reproduce a leak in `MemoryTests.cs`:

    ++[InlineData(typeof(GraphicsView))]
    public async Task HandlerDoesNotLeak(Type type)

Solved the problem by fixing two places:

* `PlatformTouchGraphicsView` now stores the `IGraphicsView` as a
  `WeakReference`.

* A `UIHoverGestureRecognizerProxy` is used for callbacks to the
  `UIHoverGestureRecognizer`.

* [create-pull-request] automated change (#16592)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

* Setting binding on Label doesn't set text to incoming binding (#16410)

* Test demonstrating binding issue

* [C] SetBinding overrides SetValue, but only when the value is set

* - reenable tests

---------

Co-authored-by: Stephane Delcroix (HE/HIM) (from Dev Box) <stdelc@microsoft.com>

* Added DeviceTest to validate CharacterSpacing on iOS Button (#16603)

* Use runtime check for setting WKWebView inspectable flag (#16631)

* Use runtime check

* Remove private

* Add back line

* Line endings?

* Use System.OperatingSystem

* Update src/BlazorWebView/src/Maui/iOS/BlazorWebViewHandler.iOS.cs

Co-authored-by: Rolf Bjarne Kvinge <rolf@xamarin.com>

---------

Co-authored-by: Rolf Bjarne Kvinge <rolf@xamarin.com>

* [Housekeeping] Fix broken bug template (#16643)

* [Housekeeping] Fix broken bug template

checkbox <> checkboxes

* Update bug-report.yml

* Update bug-report.yml

* Implement Additional PointerGestureRecognizer Platform Arguments (#16426)

* Pointer Platform Event Args

* remove extension and use property instead

* make ctor internal

* nullable consistency, spelling, and private setter

* Public API changes and remove nullable windows routedargs

* uitests part 1

* only run ui tests on windows and mac

* move device conditional to test

* Change the tests to Pointer Tests for more reusability

* Add documentation

* Add extension method for ignoring platforms

* Update the documentation

* Change platform specific docs

* [C] fix Specificity for VSM (#16404)

* [C] fix Specificity for VSM

- fixes #11204

* remove skipped test

* Prevent Android timer from adding multiple callbacks; (#16078)

Fixes #10257

* [Housekeeping] Remove checkboxes from bug template (#16650)

I did not realize that they would be editable tasks on the issue. Replaced with a dropdown. Also reordered the versions to be the most likely default options to speed up the reporting process.

* [Android] Fix SwipeView not swiping using Label as direct content (#14824)

* Fix Android SwipeView not swiping using Label as Content

* Refactoring code

* Added sample to validate 6154

---------

Co-authored-by: Javier Suárez <6755973+jsuarezruiz@users.noreply.github.com>

* Locate MAUI View for PlatformView (#16463)

* Locate xplat view from platformview

* - dispatcher

* - fix layout comparison on xunit

* - PR review comments

* - tizen fix

* Bump the aspnetcore group with 7 updates (#16634)

Bumps the aspnetcore group with 7 updates:

| Package | Update |
| --- | --- |
| [Microsoft.AspNetCore.Authorization](https://github.com/dotnet/aspnetcore) | 7.0.9 to 7.0.10 |
| [Microsoft.AspNetCore.Components.WebView](https://github.com/dotnet/aspnetcore) | 7.0.9 to 7.0.10 |
| [Microsoft.JSInterop](https://github.com/dotnet/aspnetcore) | 7.0.9 to 7.0.10 |
| [Microsoft.AspNetCore.Components.Web](https://github.com/dotnet/aspnetcore) | 7.0.9 to 7.0.10 |
| [Microsoft.AspNetCore.Authentication.Facebook](https://github.com/dotnet/aspnetcore) | 7.0.9 to 7.0.10 |
| [Microsoft.AspNetCore.Authentication.Google](https://github.com/dotnet/aspnetcore) | 7.0.9 to 7.0.10 |
| [Microsoft.AspNetCore.Authentication.MicrosoftAccount](https://github.com/dotnet/aspnetcore) | 7.0.9 to 7.0.10 |


Updates `Microsoft.AspNetCore.Authorization` from 7.0.9 to 7.0.10
- [Release notes](https://github.com/dotnet/aspnetcore/releases)
- [Changelog](https://github.com/dotnet/aspnetcore/blob/main/docs/ReleasePlanning.md)
- [Commits](dotnet/aspnetcore@v7.0.9...v7.0.10)

Updates `Microsoft.AspNetCore.Components.WebView` from 7.0.9 to 7.0.10
- [Release notes](https://github.com/dotnet/aspnetcore/releases)
- [Changelog](https://github.com/dotnet/aspnetcore/blob/main/docs/ReleasePlanning.md)
- [Commits](dotnet/aspnetcore@v7.0.9...v7.0.10)

Updates `Microsoft.JSInterop` from 7.0.9 to 7.0.10
- [Release notes](https://github.com/dotnet/aspnetcore/releases)
- [Changelog](https://github.com/dotnet/aspnetcore/blob/main/docs/ReleasePlanning.md)
- [Commits](dotnet/aspnetcore@v7.0.9...v7.0.10)

Updates `Microsoft.AspNetCore.Components.Web` from 7.0.9 to 7.0.10
- [Release notes](https://github.com/dotnet/aspnetcore/releases)
- [Changelog](https://github.com/dotnet/aspnetcore/blob/main/docs/ReleasePlanning.md)
- [Commits](dotnet/aspnetcore@v7.0.9...v7.0.10)

Updates `Microsoft.AspNetCore.Authentication.Facebook` from 7.0.9 to 7.0.10
- [Release notes](https://github.com/dotnet/aspnetcore/releases)
- [Changelog](https://github.com/dotnet/aspnetcore/blob/main/docs/ReleasePlanning.md)
- [Commits](dotnet/aspnetcore@v7.0.9...v7.0.10)

Updates `Microsoft.AspNetCore.Authentication.Google` from 7.0.9 to 7.0.10
- [Release notes](https://github.com/dotnet/aspnetcore/releases)
- [Changelog](https://github.com/dotnet/aspnetcore/blob/main/docs/ReleasePlanning.md)
- [Commits](dotnet/aspnetcore@v7.0.9...v7.0.10)

Updates `Microsoft.AspNetCore.Authentication.MicrosoftAccount` from 7.0.9 to 7.0.10
- [Release notes](https://github.com/dotnet/aspnetcore/releases)
- [Changelog](https://github.com/dotnet/aspnetcore/blob/main/docs/ReleasePlanning.md)
- [Commits](dotnet/aspnetcore@v7.0.9...v7.0.10)

---
updated-dependencies:
- dependency-name: Microsoft.AspNetCore.Authorization
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: aspnetcore
- dependency-name: Microsoft.AspNetCore.Components.WebView
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: aspnetcore
- dependency-name: Microsoft.JSInterop
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: aspnetcore
- dependency-name: Microsoft.AspNetCore.Components.Web
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: aspnetcore
- dependency-name: Microsoft.AspNetCore.Authentication.Facebook
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: aspnetcore
- dependency-name: Microsoft.AspNetCore.Authentication.Google
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: aspnetcore
- dependency-name: Microsoft.AspNetCore.Authentication.MicrosoftAccount
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: aspnetcore
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* [create-pull-request] automated change (#16655)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

* [ios] fix memory leak in SwipeItem (#16614)

Context: #16346

This addresses the memory leak discovered by:

    src/Core/src/Handlers/SwipeItemMenuItem/SwipeItemMenuItemHandler.iOS.cs(10,30): error MA0001: Event 'FrameChanged' could cause memory leaks in an NSObject subclass. Remove the event or add the [UnconditionalSuppressMessage("Memory", "MA0001")] attribute with a justification as to why the event will not leak.

I could reproduce the leak with a custom test in `SwipeViewTests`.

Solved the problem by introducing `SwipeItemButtonProxy` with the same
pattern from other PRs.

* [ios/catalyst] fix memory leak in DatePicker (#16589)

Context: #16346

This addresses the memory leak discovered by:

    src/Core/src/Platform/iOS/MauiDatePicker.cs(37,27): error MA0003: Subscribing to events with instance method 'OnValueChanged' could cause memory leaks in an NSObject subclass. Remove the subscription or convert the method to a static method.

I could reproduce a leak in `MemoryTests.cs`:

    ++[InlineData(typeof(DatePicker))]
    public async Task HandlerDoesNotLeak(Type type)

Solved the problem by fixing two places:

* `MauiDatePicker` now uses a `UIDatePickerProxy` type, for iOS

* `DatePickerHandler.MacCatalyst.cs` now uses a `UIDatePickerProxy` type,
  for MacCatalyst.

Other changes:

* Skip test on Android API 23

This is working for me locally on an API 23 emulator -- so I don't think
it is really leaking.

We skipped API 23 in another place:

https://github.com/dotnet/maui/blob/9fcccd57b5a3d664e4788b3c7fc3edc10010beaf/src/Controls/tests/DeviceTests/Elements/NavigationPage/NavigationPageTests.cs#L302-L303

We are more interested in iOS on this PR anyway.

* [build] Bump XCode to 14.31 (#16374)

* Add doc comments for common types used in templates, maps, webview (#16552)

* Add doc comments for common types used in templates, maps, webview
* Enable WarnigsAsErrors for inline docs on Maps

I went through every type/method/etc. used in the default MAUI app template and ensured there are doc for all of them.

I also added a few miscellaneous docs for WebView types and Map (many were copied from Xamarin.Forms docs).
---------
Co-authored-by: Gerald Versluis <gerald.versluis@microsoft.com>

* Update CODEOWNERS (#16682)

* Fix the case where silent was requested (#16676)

* Use the correct WASDK property (#16683)

* Re-land "[Windows] fixing window glitches while moving or resizing"  (#16637)

Initially merged in #14861 but there was a few test failures due to 83398c3 so it was reverted in #16541

* Update dependencies from https://github.com/xamarin/xamarin-macios build 20230815.5

Microsoft.tvOS.Sdk
 From Version 16.4.8694-net8-p7 -> To Version 16.4.8751-net8-rc1

* Update dependencies from https://github.com/xamarin/xamarin-macios build 20230815.5

Microsoft.MacCatalyst.Sdk
 From Version 16.4.8694-net8-p7 -> To Version 16.4.8751-net8-rc1

* Update dependencies from https://github.com/xamarin/xamarin-macios build 20230815.5

Microsoft.macOS.Sdk
 From Version 13.3.8694-net8-p7 -> To Version 13.3.8751-net8-rc1

* Update dependencies from https://github.com/xamarin/xamarin-macios build 20230815.5

Microsoft.iOS.Sdk
 From Version 16.4.8694-net8-p7 -> To Version 16.4.8751-net8-rc1

---------

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Co-authored-by: Juan Diego Herrera <juherrera@microsoft.com>
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Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>
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Co-authored-by: Rolf Bjarne Kvinge <rolf@xamarin.com>
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Provide API to retrieve the closest MAUI Element to a PlatformView
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