iOS Markdown 编辑器在第二次选中文本时卡死

tannerabread · 2026 年7 月 14 日 21:06

嘿 @Ethsim2 我刚刚合并了一个修复此问题的补丁，很快就会可用。

github.com/discourse/discourse

FIX: iOS text selection regression with locked composer (#41711)

main ← fix-ios-text-selection

merged 09:03PM - 14 Jul 26 UTC

tannerabread

+16 -0

PR #41366 introduced a regression on iOS where text-selection gestures in the co…mposer would get canceled. The scroll-lock added there routes composer touchmove events through body-scroll-lock, which calls `preventDefault` at scroll boundaries -- and a short textarea is always at its boundary -- so iOS never got a chance to handle the selection-handle drag. Add a capture-phase touchmove listener on the editor that stops propagation when the editor has a selection, so the event never reaches body-scroll-lock's handlers and iOS handles the gesture natively. [Meta Topic](https://meta.discourse.org/t/ios-markdown-composer-editor-freezes-when-selecting-text-a-second-time/407258)

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iOS Markdown 编辑器在第二次选中文本时卡死

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