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[GridNG] Small fix to gap resolution, and abspos container. #27153

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merged 1 commit into from Jan 12, 2021

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@chromium-wpt-export-bot chromium-wpt-export-bot commented Jan 12, 2021

Previously we'd just use the intrinsic block-size to resolve gaps, and
abs-pos containing rects when we didn't know the block-size upfront.

This was slightly incorrect as there might be a min/max size constraint
growing or shrinking this final size.

This patch moves the call to ComputeBlockSizeForFragment into
PlaceItems. As a result of this there are a few small fixes:

  1. When we have an indefinite available-size, we resolve the grid-gap
    against zero. (This was surprising to me grid-gutters-{010,011} was
    testing this).
  2. Abspos "default" size is correctly calculated based on the final
    block-size (not intrinsic block-size).
  3. Resolving gaps against the "resolved" available block-size (not the
    intrinsic block-size). This correctly respects border/padding as
    well.

Bug: 1045599
Change-Id: I6be819b8eb254fe9e8eaee4d5a9caaa500a75601
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2624032
Commit-Queue: Ian Kilpatrick <ikilpatrick@chromium.org>
Reviewed-by: Kurt Catti-Schmidt <kschmi@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#842748}

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The review process for this patch is being conducted in the Chromium project.

Previously we'd just use the intrinsic block-size to resolve gaps, and
abs-pos containing rects when we didn't know the block-size upfront.

This was slightly incorrect as there might be a min/max size constraint
growing or shrinking this final size.

This patch moves the call to ComputeBlockSizeForFragment into
PlaceItems. As a result of this there are a few small fixes:
1) When we have an indefinite available-size, we resolve the grid-gap
   against zero. (This was surprising to me grid-gutters-{010,011} was
   testing this).
2) Abspos "default" size is correctly calculated based on the final
   block-size (not intrinsic block-size).
3) Resolving gaps against the "resolved" available block-size (not the
   intrinsic block-size). This correctly respects border/padding as
   well.

Bug: 1045599
Change-Id: I6be819b8eb254fe9e8eaee4d5a9caaa500a75601
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2624032
Commit-Queue: Ian Kilpatrick <ikilpatrick@chromium.org>
Reviewed-by: Kurt Catti-Schmidt <kschmi@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#842748}
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3 participants