Timothy Flynn 447ecc2155 LibWeb: Maintain a map of child-to-parent nodes in OOPWV DOM Inspector ...

Currently, each time parent_index() is invoked, two depth-first searches
are incurred to find the node's parent and grandparent. This becomes
particularly expensive, for example, when trying to scroll through a
large <ul> list.

Instead, upon creation, traverse the DOM JSON and create a map of child
nodes to their parent. Then those two lookups become hash map lookups
rather than a DFS traversal.

2021-07-01 19:19:46 +02:00

5.3 KiB

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