Make xViewTransitionToHostInstances helpers reusable #32611
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These all start with resetting a counter but it's tricky to have to remember to do this and tricky to do from the outside of this module. So we make an exported helper that does the resetting. Ideally it gets inlined.
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Same thing for cancelViewTransitionHostInstances This doesn't make sense for "nested" which has not updated and so might not have an alternate. Instead we pass in the old and new name if they might be different.
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…sh/pop pattern This was moved to be a setter when it was extracted to another module but really it should be treated as push/pop.
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Stacked on #32599 and #32611. This is able to reuse the code from CommitViewTransitions for "enter", "shared" and "layout". The difference is that for "enter"/"shared" in the "new" phase we pass in the deletions. For "layout" of nested boundaries we just need to measure the clones at the same time we measure the original nodes since we haven't measured them in a previous phase in the current approach. With these updates, things move around more like expected in the fixture because we're now applying the appropriate pairs to trigger individual animations instead of just the full document cross-fade. The "update" phase is a little more complicated and is coming soon.
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Stacked on #32599 and #32611. This is able to reuse the code from CommitViewTransitions for "enter", "shared" and "layout". The difference is that for "enter"/"shared" in the "new" phase we pass in the deletions. For "layout" of nested boundaries we just need to measure the clones at the same time we measure the original nodes since we haven't measured them in a previous phase in the current approach. With these updates, things move around more like expected in the fixture because we're now applying the appropriate pairs to trigger individual animations instead of just the full document cross-fade. The "update" phase is a little more complicated and is coming soon. DiffTrain build for [2c56037](2c56037)
This was referenced Mar 17, 2025
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This prepares from being able to reuse some this in ApplyGesture.
These all start with resetting a counter but it's tricky to have to remember to do this and tricky to do from the outside of this module. So we make an exported helper that does the resetting. Ideally it gets inlined.
We also stop passing "current" to measureViewTransitionHostInstances. Same thing for cancelViewTransitionHostInstances. This doesn't make sense for "nested" which has not updated and so might not have an alternate. Instead we pass in the old and new name if they might be different.