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Revert #24222 and simply use invalidate instead of postInvalidate #24990

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merged 2 commits into from
Oct 11, 2024

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albyrock87
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@albyrock87 albyrock87 commented Sep 29, 2024

Description of Change

#24222 broke reaction to shadow / clip changes.

This PR brings back the original code while replacing postInvalidate with invalidate to avoid countless scheduled invalidations considering that MAUI only operates on platform views through the main thread.

You can see more details in the issue's comments.

While CI regenerates the aar, we should commit the new aar once this is merged, or as part of this PR.
I've not included it for security reasons.

Issues Fixed

Fixes #24882

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Hey there @albyrock87! Thank you so much for your PR! Someone from the team will get assigned to your PR shortly and we'll get it reviewed.

@rmarinho rmarinho requested review from jonathanpeppers and removed request for Eilon September 30, 2024 13:52
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cc @jonathanpeppers

* @param hasClip
*/
protected final void setHasClip(boolean hasClip) {
if (this.hasClip != hasClip) {
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Why do we remove the if? If the value for hasClip hasn't changed, why does it need to run invalidate()?

Does it actually need to be called in a different place in the stack? In .NET MAUI's C# layer, perhaps it would know what changed?

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@albyrock87 albyrock87 Sep 30, 2024

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@jonathanpeppers I've just done what you asked: revert your PR and use invalidate instead of postInvalidate.

That said:

  • setting a boolean field value has very likely no impact on performance, so the if is kind-of useless
  • this method is being called from the C# layer when the Clip changes, that's why we always need to invalidate
    • calling it from C# would cause two JNI roundtrips for nothing

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setting a boolean field value has very likely no impact on performance

Setting the field isn't the question, but the fact that invalidate() is called. Why do we need call invalidate() if true is set to true? or false set to false?

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Because the clip path or the shadow details like color, radius,... have changed.

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@albyrock87 albyrock87 Sep 30, 2024

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we should call these methods something like invalidateShadow(bool willDrawShadow) but it's a public API and I can't do that

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If the clip path or shadow changes, should those be the things that call invalidate()?

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The reason to not move invalidate call there is just to avoid two round trips on JNI. So this is just a naming problem in my opinion.

* @param hasShadow
*/
protected final void setHasShadow(boolean hasShadow) {
if (this.hasShadow != hasShadow) {
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Same question here.

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Same answer here :D

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/azp run

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Azure Pipelines successfully started running 3 pipeline(s).

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If this fixes a new issue, changing postInvalidate() -> invalidate() will solve the performance issue from earlier.

jsuarezruiz
jsuarezruiz previously approved these changes Oct 7, 2024
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LGTM, will include the new aar as part of this PR. Waiting build to complete.

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PureWeen commented Oct 7, 2024

/backport to release/8.0.1xx-sr9

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github-actions bot commented Oct 7, 2024

Started backporting to release/8.0.1xx-sr9: https://github.com/dotnet/maui/actions/runs/11221159064

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PureWeen commented Oct 8, 2024

/azp run

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Azure Pipelines successfully started running 3 pipeline(s).

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PureWeen commented Oct 8, 2024

/rebase

@github-actions github-actions bot force-pushed the revert-has-shadow-has-clip branch from 5b05cea to 84c7791 Compare October 8, 2024 21:04
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PureWeen commented Oct 8, 2024

/azp run

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Azure Pipelines successfully started running 3 pipeline(s).

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PureWeen commented Oct 9, 2024

/rebase

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PureWeen commented Oct 9, 2024

/azp run

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/rebase

@github-actions github-actions bot force-pushed the revert-has-shadow-has-clip branch from 84c7791 to c581c9d Compare October 10, 2024 15:34
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/azp run

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Azure Pipelines successfully started running 3 pipeline(s).

@PureWeen PureWeen added this to the .NET 9.0 GA milestone Oct 10, 2024
@PureWeen PureWeen merged commit be57365 into dotnet:main Oct 11, 2024
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@samhouts samhouts added the fixed-in-net8.0-nightly This may be available in a nightly release! label Oct 14, 2024
@github-actions github-actions bot locked and limited conversation to collaborators Nov 16, 2024
@samhouts samhouts added fixed-in-9.0.10 fixed-in-net8.0-nightly This may be available in a nightly release! and removed fixed-in-net8.0-nightly This may be available in a nightly release! labels Dec 16, 2024
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