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perf(web-ui): stop re-measuring transcripts while a pane divider is dragged - #3371
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GCWing merged 3 commits intoOct 19, 2026
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October 19, 2026 09:23
Resolve the current workbench layout conflicts while preserving transcript measurement suspension. Share drag and settle state with scenes and the canvas, and use observer-cached bounds for both pointer events and queued paint frames. Cover live container resizing, deferred frames, split/overlay settling and cancellation.
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Oct 19, 2026
…recovery
Brings the aux-pane child-session recovery work up to current main.
Conflict (only one file, src/web-ui/src/app/components/panels/base/FlexiblePanel.tsx,
case 'btw-session'): both sides appended a prop to <BtwSessionPanel>. Kept both - upstream's
resizeSuspended={resizeSuspended} (perf(web-ui) 6f2ec2b, the merged pane-resize PR GCWing#3371)
and this branch's four child-identity props (sessionKind / sessionTitle / parentToolCallId /
subagentType). No other file needed manual work; the pane-resize plumbing is untouched.
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Dragging the workbench divider with a chat transcript and a worker/side-session transcript open repeatedly invalidates width-dependent measurements. This change retains the last published transcript width during the gesture and publishes the settled width afterwards, reducing redundant measurement work.
Changes
Validation
pnpm run check:webpassed, including type checking, Appearance contracts, typography, theme color audits and theme visual contracts.gen:typesworkflow.AI-assisted changes. Native WebView frame-rate improvement has not been measured. Live remote workspace, Remote Control, Peer Device and Detached Dispatch scenarios were not exercised; DOM tests are not evidence of those paths.
中文说明
拖动分隔条时，主聊天与 worker/子会话暂缓宽度变化引起的测量，布局稳定后再更新。暂停状态已接入当前主分支的 Workbench 布局；同时修复拖动中容器尺寸变化仍使用旧边界的问题，并覆盖排队帧和取消手势。相关 322 项测试及
check:web均通过。