Define the scan observation contract before any keyboard walk optimization
还没有人认领这个 Issue。
评估
- 难度
- 4/5
- 预计耗时
- 3-5 天
- 新手友好度
- 45/100
- Issue 类型
- 功能
- 描述清晰度
- 基本清楚
- 活跃度
- 停滞
- 技术栈
- playwright, typescript
调研方向
Read the transcript walk and keyboard walk provider code that implement the fixed 50 presses and accessibility node reads; the issue does not name their files or tests. First establish the observation contract for press count, node read timing, and page state, then re-baseline the findings and verdicts against it. Done means the walk-once change preserves that contract and matches the re-baselined behavior.
由索引模型根据 Issue 内容生成。
描述
What
The transcript walk presses Tab a fixed 50 times and discards everything after the first repeated element path; the keyboard walk provider then walks the same focus order a second time and reads the accessibility node twice per stop.
Why the obvious fix was dropped
A branch that stopped the walk at the first cycle and read the node once produced identical transcripts but different findings and verdicts on real Chromium: the discarded presses fire focus and blur handlers that mutate the page (a button added after the third focus made the old walk a regression and the new walk verified, and the reverse also occurred), and a single read drafts from an earlier instant than the second read.
Direction
Write down the observation contract first: exactly how many presses, when the node is read, what page state the providers see. Then re-baseline against it and make the walk-once change under that contract. Measured saving: about 1 second on a small app, about 2.5 seconds on a large one, more with the duplicate read removed.
- 主要语言
- TypeScript
- 星标
- 0
- 派生
- 0
- 平均合并
- 2 小时 48 分钟
- 30 天内合并 PR
- 8
环境准备
- 没有 Dockerfile 或 Docker Compose 文件
- 有 Pull Request 模板
- 没有贡献指南
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