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Fix incorrect defaults when adding non-BindableObject as AbsoluteLayout child #19839

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merged 1 commit into from Jan 11, 2024

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@hartez hartez commented Jan 11, 2024

Description of Change

AbsoluteLayout gives different LayoutBounds defaults to IView children than it does to BindableObject children.

These changes ensure the defaults are correct and match in both cases.

@hartez hartez requested a review from a team as a code owner January 11, 2024 20:27
@PureWeen PureWeen merged commit bb7d809 into main Jan 11, 2024
47 checks passed
@PureWeen PureWeen deleted the fix-abslayout-inconsistent-default branch January 11, 2024 23:16
rmarinho added a commit that referenced this pull request Jan 15, 2024
* Fix issue 18110

* Fix SetProgressViewOffset on SwipeRefreshLayout (#19767)

* Fix SetProgressViewOffset on SwipeRefreshLayout

* - update refresh icon to a better color to trigger screen shot comparison

* - remove extra code

* - add better exception

* Fix incorrect defaults when adding non-BindableObject as AbsoluteLayout child (#19839)

* [Windows] Show the Raw HTML for Html Label in case of error (#17470)

* Show the Raw HTML in case of error

* Try to add UITest for Broken HTML

* added optional ReceiveSms permission (#19659)

* iOS Keyboard Scrolling Improvements and UITests (not from fork) (#17670)

* Squash all the iOS Keyboard Improvements

* delay was enough manually, but not for tests

* remove debugging

* Add logic for Disconnect to be more useful

* fix spacing from github merge conflict commit

* accidently removed a var declaration

* Improve UITests and add double scroll for LargeTitles

* Add UITest for the grid star

* Style changes

* more style

* add fixtureTeardown

* only check for LargeTitles in portrait mode

* Add changes for LargeTitles on iPad

* remove the popover code until we get tests

* [ci] Bump XCode to 15.2.0 (#19836)

* [ci] Bump XCode to 15.1.0

* Go to Xcode 15.2

* New xcode 15.1 doesn't support 14.5 simulators

* Add missing AbsoluteLayout section to layout architecture doc (#19841)

* [ci] Don't install xharness globally (#19863)

* dont install xharness globally

* Fix restore

* Update README.md (#19797)

* [xamlg] improve error for Xamarin.Forms namespace (#19683)

* [xamlg] improve error for Xamarin.Forms namespace

Fixes: #18637

Using the old namespace `http://xamarin.com/schemas/2014/forms` was
causing a NRE:

    System.NullReferenceException: Object reference not set to an instance of an object.
    at Microsoft.Maui.Controls.Xaml.XmlTypeXamlExtensions.GetTypeReference[T](XmlType xmlType, IEnumerable`1 xmlnsDefinitions, String defaultAssemblyName, Func`2 refFromTypeInfo)
    at Microsoft.Maui.Controls.SourceGen.CodeBehindGenerator.GetTypeNameFromCustomNamespace(XmlType xmlType, Compilation compilation, AssemblyCaches caches)
    at Microsoft.Maui.Controls.SourceGen.CodeBehindGenerator.GetTypeName(XmlType xmlType, Compilation compilation, AssemblyCaches caches)
    at Microsoft.Maui.Controls.SourceGen.CodeBehindGenerator.TryParseXaml(SourceText text, String uid, Compilation compilation, AssemblyCaches caches, CancellationToken cancellationToken, String targetFramework, String& accessModifier, String& rootType, String& rootClrNamespace, Boolean& generateDefaultCtor, Boolean& addXamlCompilationAttribute, Boolean& hideFromIntellisense, Boolean& xamlResourceIdOnly, String& baseType, IEnumerable`1& namedFields, Exception& exception)
    at Microsoft.Maui.Controls.SourceGen.CodeBehindGenerator.GenerateXamlCodeBehind(ProjectItem projItem, Compilation compilation, SourceProductionContext context, AssemblyCaches caches)
    at Microsoft.Maui.Controls.SourceGen.CodeBehindGenerator.<>c.<Initialize>b__1_1(SourceProductionContext sourceProductionContext, ValueTuple`3 provider)
    at Microsoft.CodeAnalysis.UserFunctionExtensions.<>c__DisplayClass3_0`2.<WrapUserAction>b__0(TInput1 input1, TInput2 input2, CancellationToken token)

In f939049, I inadvertently introduced this NRE, but even after fixing
it, I would instead get:

    FormsNamespace.xaml.sg.cs(15,48): error CS1001: Identifier expected

Due to the namespace, type, and base type all being `null` in this case,
the generated C# is invalid.

Instead of generating C# *at all*, let's emit an error message that says
to use the correct namespace.

I also provided a `Location` for the error message, so we will now know
what file the error originated from.

I attempted to write some test here, but adding an invalid file like
this causes the XAML unit tests project to fail to build. It feels like
we actually need to create a unit test project for the source generator
-- as there isn't one now.

* Add `[Obsolete]` to `FormsUri`

---------

Co-authored-by: Mike Parker <mikeparker104>
Co-authored-by: Shane Neuville <shneuvil@microsoft.com>
Co-authored-by: E.Z. Hart <hartez@users.noreply.github.com>
Co-authored-by: Tim Miller <drasticactions@users.noreply.github.com>
Co-authored-by: Mike Parker <mikeparker104@users.noreply.github.com>
Co-authored-by: Georgy <tarasverq@yandex.ru>
Co-authored-by: TJ Lambert <50846373+tj-devel709@users.noreply.github.com>
Co-authored-by: James Montemagno <james.montemagno@gmail.com>
Co-authored-by: Jonathan Peppers <jonathan.peppers@microsoft.com>
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2 participants