server2
77 lines
4.0 KiB
Markdown
77 lines
4.0 KiB
Markdown
# Magic Island: an Amane media widget
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A Dynamic-Island-style media widget for Amane (Rust Wayland shell library), running on Hyprland. It sits as a small pill at the top centre of the screen and opens into a now-playing card.
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- **Pill:** cover thumbnail, title, 7 live bars from the shown player's own sound (lows left, highs right, growing up and down from the middle), or a pause sign.
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- **Card:** a still CD of the cover ringed by 40 cava "candles", title and artist, a seekable time bar, previous / play-pause / next.
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- **Player switcher** ("VIA …" chip): every MPRIS player; picking one pins it, otherwise the island follows whichever plays.
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- **Output switcher:** moves only the shown player's audio to another device.
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- **Per-player volume** (scroll the volume chip, click to mute), set on that player's own PulseAudio/PipeWire streams, so it also works for browsers that ignore MPRIS volume.
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- **Real 10-band equalizer per player** (31 Hz to 16 kHz, ±12 dB): a PipeWire filter-chain per player, with 8 presets (Flat, Bass, Treble, Vocal, Pop, Rock, Jazz, Classic). Curves are saved per player.
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- **Background:** a diagonal gradient from the cover's own colours, darkened so white text stays readable.
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- **Opening animation:** the pill fades out, the empty shape grows, then the card fades in. Closing runs backwards. Moving the pointer off the open card closes it.
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## Layout
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```
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src/main.rs app setup: Fira Code font, the `island` IPC handler, palette from the cover
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src/island.rs the view: pill, card, ring, equalizer, dropdowns, animation, IPC commands
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src/sound.rs per-player volume, mute, output and equalizer (pactl, pw-cli, pipewire)
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src/spectrum.rs the shown player's sound as 24 levels (pw-record | cava)
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src/art.rs cover download (curl) and the palette file
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src/parse.rs pure text parsing with unit tests, no amane dependency
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island-eq saved equalizer curves (a snapshot of ~/.config/amane/island-eq)
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tools/ remote test driver and fake MPRIS players, see AGENTS.md
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```
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## Requirements
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On the desktop that runs the shell:
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- the `amane` CLI and Rust toolchain (`amane compile` builds `src/`)
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- PipeWire with `pipewire-pulse`: `pactl`, `pw-record`, `pw-cli`, `pipewire` (filter-chain module)
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- `cava`, `curl`
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- the Fira Code font
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## Install and run
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The shell lives in `~/.config/amane/`. Copy (or clone) this repo's `src/` there, then build and start:
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```sh
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amane compile
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~/.cache/amane/project/target/debug/amane-shell
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```
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The installed CLI on the current desktop is older than the Amane docs: it doesn't save `~/.cache/amane/amane-shell`, so `amane run` has nothing to start. Run the binary above directly.
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## Control it
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```sh
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amane ipc call island toggle # also: open, close
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amane ipc call island next # show the next player
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amane ipc call island menu output # open a dropdown: output | player | close
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amane ipc call island preset Rock # apply an equalizer preset to the shown player
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amane ipc call island output <sink> # move the shown player to a sink (pactl sink name)
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amane ipc call island status # player=<identity> expanded=<bool> menu=<bool>
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```
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Example Hyprland keybind:
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```
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bind = SUPER, M, exec, amane ipc call island toggle
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```
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## Runtime files
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- `~/.config/amane/island-eq`: one line per player identity, `<player>\t<preset or Custom>\t<10 gains in dB>`.
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- `$XDG_RUNTIME_DIR/magic-island/`: downloaded covers, `palette-cover`, `cava.conf`, `eq-<key>.conf`. On tmpfs, gone at logout.
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- Equalizer nodes are named `magic_island_eq.<key>`. The key is the player's MPRIS bus name without `org.mpris.MediaPlayer2.`, non-alphanumerics as `_` (e.g. `chromium_instance123`).
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## Known limits
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- The time bar moves in 1 s steps (the MPRIS poll rate).
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- Every slider step starts one `pactl` or `pw-cli` process.
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- An equalizer keeps running, and keeps that player routed through its last curve, if the shell stops while the player is open.
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- The candle ring around the CD is still mirrored left against right; the pill's bars are not.
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- Dropdowns have no keyboard navigation.
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