feat(app): polish file explorer tree with material icons and visual refinements

Replace lucide file icons with colored SVGs from material-icon-theme covering 53 language/filetype-specific icons. Add chevron expand indicators for directories, indent guide lines, rounded rows, and restyle the header toolbar to match the git diff pane pattern.
2026-03-30 17:05:14 +07:00
parent e3b6e2dcfa
commit 5b22aedaff
5 changed files with 438 additions and 155 deletions
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+# File Icons
+
+The file explorer uses colored SVG icons from [`material-icon-theme`](https://github.com/material-extensions/vscode-material-icon-theme) (installed as a dev dependency in `packages/app`).
+
+Icons are inlined as SVG strings in:
+
+```
+packages/app/src/components/material-file-icons.ts
+```
+
+This file is auto-generated. Do not edit it by hand.
+
+## How it works
+
+- `SVG_ICONS` maps icon names (e.g. `"typescript"`) to raw SVG strings
+- `EXTENSION_TO_ICON` maps file extensions (e.g. `"ts"`) to icon names
+- `getFileIconSvg(fileName)` returns the SVG string for a given filename, falling back to a generic file icon
+
+## Adding a new icon
+
+1. Find the icon name in the material-icon-theme manifest:
+
+```bash
+node -e "
+const m = require('./node_modules/material-icon-theme/dist/material-icons.json');
+console.log('fileExtensions:', m.fileExtensions['YOUR_EXT']);
+console.log('languageIds:', m.languageIds['YOUR_LANG']);
+"
+```
+
+2. Verify the SVG exists:
+
+```bash
+cat node_modules/material-icon-theme/icons/ICON_NAME.svg
+```
+
+3. Add two things to `material-file-icons.ts`:
+
+   - The SVG string in `SVG_ICONS`:
+     ```ts
+     "icon_name": `<svg ...>...</svg>`,
+     ```
+
+   - The extension mapping in `EXTENSION_TO_ICON`:
+     ```ts
+     "ext": "icon_name",
+     ```
+
+4. Run `npm run typecheck` to verify.
+
+## Currently included icons
+
+53 unique icons covering these extensions:
+
+| Extension(s) | Icon |
+|---|---|
+| `ts` | typescript |
+| `tsx` | react_ts |
+| `js` | javascript |
+| `jsx` | react |
+| `py` | python |
+| `go` | go |
+| `rs` | rust |
+| `rb` | ruby |
+| `java` | java |
+| `kt` | kotlin |
+| `c` | c |
+| `cpp` | cpp |
+| `h` | h |
+| `hpp` | hpp |
+| `cs` | csharp |
+| `swift` | swift |
+| `dart` | dart |
+| `ex`, `exs` | elixir |
+| `erl` | erlang |
+| `hs` | haskell |
+| `clj` | clojure |
+| `scala` | scala |
+| `ml` | ocaml |
+| `r` | r |
+| `lua` | lua |
+| `zig` | zig |
+| `nix` | nix |
+| `php` | php |
+| `html` | html |
+| `css` | css |
+| `scss` | sass |
+| `less` | less |
+| `json` | json |
+| `yml`, `yaml` | yaml |
+| `xml` | xml |
+| `toml` | toml |
+| `md`, `markdown` | markdown |
+| `sql` | database |
+| `graphql`, `gql` | graphql |
+| `sh`, `bash` | console |
+| `tf` | terraform |
+| `hcl` | hcl |
+| `vue` | vue |
+| `svelte` | svelte |
+| `astro` | astro |
+| `wasm` | webassembly |
+| `svg` | svg |
+| `png`, `jpg`, `jpeg`, `gif`, `webp`, `ico` | image |
+| `txt` | document |
+| `conf`, `cfg`, `ini` | settings |
+| `lock` | lock |
+| `groovy` | groovy |
+| `gradle` | gradle |