# sloposk

iPad-style floating on-screen keyboard for Plasma Wayland. Qt 6, C++ core, QML UI.

- Flick a key down for its secondary symbol; long-press for accented alternates
- iOS shift: tap = one letter, double-tap = caps lock, hold = shift while held
- Auto-capitalization, double-space → ". ", backspace repeat → word delete
- Long-press space = trackpad; slide from `.?123` onto a symbol and release
- Floating: drag the bottom bar, resize from the corner; geometry is remembered per screen

## Build & test

```sh
cmake -B build -G Ninja && cmake --build build
ctest --test-dir build
```

Needs Qt ≥ 6.8 (Quick, WaylandClient, DBus, Test), LayerShellQt, xkbcommon, wayland-protocols.

## Run

KWin only offers the input-method protocol to the process it launches itself.

| Where | How |
|---|---|
| Nested session (safe) | `kwin_wayland --no-lockscreen --socket sloposk-dev --width 1400 --height 900 --inputmethod $PWD/build/src/sloposk kwrite` |
| Desktop | `cmake --install build --prefix ~/.local`, then System Settings → Keyboard → Virtual Keyboard → **sloposk** |
| UI only | `build/src/sloposk` (stays visible, types nowhere) |

Show/hide, e.g. from a global shortcut: `qdbus org.sloposk.Keyboard /Keyboard org.sloposk.Keyboard.Toggle`

Dev hooks: `SLOPOSK_AUTOTYPE=text` commits on focus; `SLOPOSK_SCREENSHOT=file.png` saves the window and quits.

## Layouts

JSON in `layouts/` (built in) or `~/.local/share/sloposk/layouts/` (overrides by `id`). The globe key cycles them; the system locale's comes first.

```json
{
  "id": "sv-SE", "name": "Svenska", "locale": "sv_SE",
  "base": "en-US",
  "layers": [{"name": "letters", "rows": [[
    "q",
    {"label": "e", "flick": "3", "alternates": ["é", "è"]},
    {"type": "backspace", "width": 1.5}
  ]]}]
}
```

- Key: a string, or an object with `type` (`char` `space` `backspace` `enter` `shift` `layer` `globe` `dismiss` `spacer`), `label`, `shifted`, `flick`, `alternates`, `width` (key units), `target` (for `layer`)
- `base`: take layers this layout doesn't define (e.g. numbers/symbols) from another layout
- Rows in a layer should add up to the same width; `tst_layoutloader` checks the built-ins

## Architecture

```
qml/        view only
input/      touch → PointerTracker gestures → KeyboardController rules
engine/     key output → text ops (DirectEngine; prediction/swipe later)
backend/    text ops → compositor (KWin input-method-v1)
layout/     JSON → Layout → LayoutModel (geometry, hit testing)
window/     floating layer-shell placement, visibility, saved geometry
app/        D-Bus control, dev hooks
```

`sloposk_core` (everything compositor-independent, plus the `Sloposk` QML module) is a static library shared by the app and the tests.