Changhao Han
097956ebb5
Currently the Computed Styles pane renders several hundreds of computed styles in a single cycle, which means creating, appending, layout-out, rendering, and painting hundreds of heavily styled <li> items that contains widgets and children. This can create a visual lag ranging from ~100ms to ~1s. This CL breaks down these operations into smaller batches, and queues them using browser's requestIdleCallback to provide an instant rendering feedback. tracing before: https://chromedevtools.github.io/timeline-viewer/?loadTimelineFromURL=https://gist.githubusercontent.com/hanselfmu/424153ea140df049800e716031882238/raw/c62f1561cf4f56c1c5c869325015f3d99ab65637/computed_tab_perf_before.json tracing after: https://chromedevtools.github.io/timeline-viewer/?loadTimelineFromURL=https://gist.github.com/hanselfmu/5fdc43d3ae878aed82e79ff3af3c1ed6/raw/7d5095dfde0236eccafe53ec0fb22356e303afb9/computed_tab_perf_after.json Bug: chromium:1100148, chromium:1106251, chromium:1093263 Change-Id: Id0acbf91542280b026fdb67e28097bdb445606ea Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2308547 Commit-Queue: Changhao Han <changhaohan@chromium.org> Reviewed-by: Alex Rudenko <alexrudenko@chromium.org> Reviewed-by: Mathias Bynens <mathias@chromium.org>
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The client-side of the Chrome DevTools, including all JS & CSS to run the DevTools webapp.
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