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f147074d83
Currently, we just rebuild boxes for all nodes from the update point downward, and the unique valid candidates as update point is just the absolutely positioned ancestor of the style recalc dirty dom root node. It is quite crude way for incremental box tree update and incremental layout, because it will lead to a lot of boxes to be rebuilt even though their originating nodes have no style change, i.e. only some child nodes are newly added or removed. Meanwhile, all cached fragments need to be invalidated from the update point downward, even though there is no any change of the layout constraits and containing block for some of those rebuilt boxes. To preserve more boxes and cached fragments as much as possible, this PR try to rebuild those boxes whose originating node has `REBUILD_BOX` restyle damage and try to repair those boxes whose originating node has `REPAIR_BOX` damage. It is a relative big task. To implement it step by step, this PR only repair and reuse the block level boxes. In the future, the others kind of boxes will be repaired or reused. Signed-off-by: coding-joedow <ibluegalaxy_taoj@163.com> |
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| .. | ||
| geom.rs | ||
| layout.rs | ||
| mod.rs | ||