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feat(editor): add Visual mode (v/V) with y/d/c, move View to gr

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Charwise `v` and linewise `V` selection with yank/delete/change on the
span; motions and counts extend it. Read-only View moves off v/V to
`gr` (go-read). Selection renders reverse-video on the 1-bit panel.
Normal motions factored into a shared move_by. Firmware -> 0.4.0.
This commit is contained in:
Julien Calixte
2026-07-11 20:50:16 +02:00
parent 470a9d25d0
commit fa0ea56e1a
4 changed files with 518 additions and 38 deletions
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README.md
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@@ -69,7 +69,7 @@ surface (mostly `usb_kbd.rs`) is in [`MEMORY_AUDIT.md`](MEMORY_AUDIT.md).
| HAL / runtime | `esp-idf-svc`, `esp-idf-hal` | std build: heap, threads, VFS, mbedtls, Wi-Fi stack. |
| Display | Custom SSD1683 driver (`src/epd.rs`) + `embedded-graphics` | Dual-controller 792×272 panel; dirty-rect partial refresh (~630 ms measured). |
| UI layer | Custom thin widget layer | Ratatui's API _shape_ without its char-grid terminal model ([ADR-002](docs/adr.md#adr-002-ui-strategy--custom-widgets-on-embedded-graphics-not-ratatui)). |
| Editor core | Custom, in-tree (`src/editor.rs`) | Modal (Normal / Insert / View / Command), motions, operators + text objects. Plain-ASCII buffer until the v0.2 UTF-8 work. |
| Editor core | Custom, in-tree (`src/editor.rs`) | Modal (Normal / Insert / Visual / VisualLine / View / Command), motions, operators + text objects. Plain-ASCII buffer until the v0.2 UTF-8 work. |
| USB host | `esp-idf` TinyUSB bindings | Boot-protocol HID; verified on hardware (Spike 4). |
| Git | **libgit2 via `git2`**, built as an esp-idf component with mbedTLS (`firmware/components/libgit2/`) | `gix` was the original pick but can't push over HTTPS — the [ADR-004](docs/adr.md#adr-004-git-implementation--gitoxide-gix) kill-switch fired ([postmortem](docs/postmortems/2026-07-05-spike7-gix-https-push.md)). On-device add → commit → push verified; ~16 s cold-`:sync` [latency breakdown](docs/notes/sync-latency.md). |
| TLS | `mbedtls` via `esp-idf` | GitHub HTTPS with the chain checked against embedded roots; ≈35 KB heap measured during handshake (Spike 6). |
@@ -106,7 +106,7 @@ source live in [`docs/macroplan.md`](docs/macroplan.md).
| [v0.2](docs/macroplan.md#v02--vim-navigation--) | Vim nav | Normal/Insert, motions, line numbers. |
| [v0.2.5](docs/macroplan.md#v025--international-input--) | Intl input | US-Intl dead keys: à é ê ç, `'`+space = `'`. |
| [v0.3](docs/macroplan.md#v03--vim-editing--) | Vim edit | `dd yy p`, undo/redo, counts. |
| [v0.4](docs/macroplan.md#v04--visual-mode--ex-commands--) | Visual + ex | `v V`, `:w :q :e` command line. |
| [v0.4](docs/macroplan.md#v04--visual-mode--ex-commands--) | Visual + ex | `v`/`V` select + `y d c`, `gr` read, `:` ex. |
| [v0.5](docs/macroplan.md#v05--file-palette--multi-file--) | Files | `Ctrl-P` over `/repo` + `/local`, buffers. |
| [v0.6](docs/macroplan.md#v06--markdown-affordances--) | Markdown | Headings, list continuation, soft-wrap. |
| [v0.7](docs/macroplan.md#v07--search--better-git--) | Search + git | `/` search, `:Gpull`. |