Open Bug 1677616 Opened 3 years ago Updated 3 years ago

The size of ratio-determining axis should be the value before applying min/max constraints

Categories

(Core :: Layout, defect, P3)

Product:
Core
Component:
Layout
Type:
defect

Tracking

()

People

(Reporter: boris, Unassigned)

References

(Blocks 1 open bug,
URL
)

Details

Based on the current spec ISSUE 6:

The resolved preferred size in the ratio-determining axis (before applying min/max) gets transferred thru the ratio. Min/max constraints get transferred afterwards, and then applied to each axis independently without regards to aspect-ratio.

This means the inline size we used to compute the block size through aspect-ratio should be the value before applying min/max constraints. Now, if the ratio-determining axis is inline axis, we use the incorrect size to compute the block size through aspect-ratio. (code)

We probably need to start to think: should we merge the implementation of nsIFrame::ComputeSize and nsContainerFrame::ComputeSizeWithIntrinsicDimensions

Summary: The size of ratio-determining axis should be before applying min/max. → The size of ratio-determining axis should be the value before applying min/max constraints

OK, this may not be an issue because we implicitly apply the transferred min/max size constraints on the transferred preferred block size if we keep our current implementation. Just leave this bug for tracking this potential issue.

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