Open Bug 1675861 Opened 4 years ago

Convert RecomputePosition() in RestyleManager to compute in logical coordinates

Categories

(Core :: Layout, task)

Product:
Core
Component:
Layout
Type:
task

Tracking

()

People

(Reporter: TYLin, Unassigned)

References

(Blocks 1 open bug)

Details

File per discussion with Emilio in https://phabricator.services.mozilla.com/D96128.

This part of the code computing the offset near the end of RecomputePosition() in RestyleManager.cpp should be converted to logical math.

Some hints:

  1. We should consider using the containing block's writing mode to do the math per "the positioning phase" in the spec https://drafts.csswg.org/css-writing-modes-3/#orthogonal-flows
  2. The existing test cases for this part of the code are in layout/reftests/position-dynamic-changes, but none of them have writing-mode.
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