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fix: improve mobile terminal alternate-screen detection and scrolling

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- Revert touch-action: none on .xterm-viewport so xterm.js can fall back
  to its own viewport scrolling when the custom handler doesn't take over.
- Detect alternate screen via reference equality
  (term.buffer.active === term.buffer.alternate) instead of the
  string, which could report normal buffer incorrectly.
- Lower vertical-scroll activation threshold from 4px to 2px and only
  prevent default once a vertical gesture is recognized.
- In normal buffer use term.scrollLines() so xterm.js handles the buffer
  scroll consistently; in alternate screen continue sending SGR 1006
  mouse-wheel sequences to tmux/vim.

Quality gates: typecheck, lint clean, npm test -- --run 87 passed.
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Developer
2026-06-13 20:42:52 +00:00
parent c7ab2de25e
commit 2ece7074f6
18 changed files with 59 additions and 61 deletions
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apps/web/.pi-map.md
+2 -2
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@@ -4,7 +4,7 @@ dir: apps/web
index: apps/web/.pi-map.index.md
## role
Frontend web application providing a browser-based UI with code editing, terminal, and routing capabilities for the "headquarter" project.
Frontend web application providing a React-based UI with code editing, terminal, and routing capabilities for the "headquarter" project.
## files
- .env.example | Template file defining example environment variables for frontend API and application URL configuration
- .eslintrc.cjs | Configures ESLint for a TypeScript browser project with modern ECMAScript module support | dep: @typescript-eslint/parser, @typescript-eslint/eslint-plugin, eslint
@@ -16,7 +16,7 @@ Frontend web application providing a browser-based UI with code editing, termina
- tsconfig.json | TypeScript configuration file for a React project using Vite with modern ES2020 target and bundler module resolution | dep: typescript, react, vite
- vite.config.ts | Configures Vite build tool for a React project with custom dev server port and Vitest test settings. | dep: vite, @vitejs/plugin-react
## arch
Modern React SPA built with Vite and TypeScript, containerized via multi-stage Docker with nginx serving, featuring client-side routing and optimized static asset delivery.
Modern React SPA built with Vite and TypeScript, using nginx for production serving with client-side routing, multi-stage Docker deployment, and Vitest for testing.
## tags
react, eslint, vite, typescript, dom, application, nginx, web
## symbols