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aiongg
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The layout-parity files (ROADMAP, compose lib/tests, engine text, fonts fontdb, idml import/tests, canvas) resolve as in the merge of main into feat/layout-parity. Conflict: ROADMAP.md: as feat/layout-parity's merge Conflict: crates/compose/src/lib.rs: as feat/layout-parity's merge; this branch's trimmed trailing spaces follow main's warichu::place and come before the drop cap splice Conflict: crates/compose/src/tests.rs: both sides' tests Conflict: crates/engine/src/cmd/text.rs: as feat/layout-parity's merge; this branch's TypingFormat/typing_format and main's warichu_cmd Conflict: crates/fonts/src/fontdb.rs: this branch's styles/traits_of/linked_style over style_traits; style_traits falls back to the family without main's format suffix (exact_style_traits) Conflict: crates/idml/src/import.rs, crates/idml/src/tests.rs, crates/ui-egui/src/canvas.rs: as feat/layout-parity's merge Conflict: crates/ui-egui/src/control.rs: main's page_index and automation_contract_tests, then this branch's tests module Conflict: crates/ui-egui/src/lib.rs: this branch's ClipboardFn and main's Inbox of ImportedFile Conflict: crates/ui-egui/src/menus.rs: main's Quick Apply tests, then this branch's copy and paste keys test
47 lines
4.0 KiB
Markdown
47 lines
4.0 KiB
Markdown
# Control protocol
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Start the app with `--control <port>` (or `DESIGNCRAFT_CONTROL_PORT`). The server listens on
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`127.0.0.1` only and speaks JSON lines: one request object per line, one reply per line.
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**Only requests are read.** Every line must be a JSON object with a string `method` (`id` and `params`
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are optional; blank lines are skipped). Anything else gets one error reply
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(`{"ok": false, "error": "… closing the connection"}`) and the server **closes the connection**, so
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nothing sent after it on that connection runs. That covers text that isn't JSON, a JSON array or number,
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an object without `method`, invalid UTF-8, and a line longer than 4 MiB. An HTTP request (for example a
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web page's cross-origin `fetch` to `127.0.0.1:<port>`) therefore can't smuggle a command in its body:
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its request line is rejected first. At most 16 connections are served at once; further ones get an error
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line and are closed. Clients that get an error reply should reconnect. The port has no authentication,
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so only enable it while you use it. Transport: `apps/designcraft/src/control_server.rs`.
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```json
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{"id": 1, "method": "engine.execute", "params": {"command": "frame.create", "params": {"rect": [36, 36, 300, 200], "content": "text"}}}
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{"id": 1, "ok": true, "result": {"id": 10, "story": 11}}
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```
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| Method | Params | What it does |
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| `engine.execute` / `ui.menu.invoke` | `{command, params}` | Run any engine or UI command (see `engine.commands`). `ui.menu.invoke` without `params` acts like choosing the menu item: a command labelled "…" that takes parameters opens its dialog |
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| `engine.commands` | — | Every command: id, label, menu path, shortcut, params doc, enabled |
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| `document.inspect` | — | Pages, spreads, items, stories (overset), styles, swatches, selection |
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| `ui.inspect` | — | Tool, UI state, view (zoom/origin), canvas rect, perf |
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| `ui.menu.list` / `ui.tool.list` | — | Menu tree / Tools panel groups |
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| `ui.tool.select` | `{tool}` | Select a tool (`selection`, `type`, `rectangleFrame`, …) |
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| `ui.pointer` | `{events:[{kind: down\|drag\|up\|move\|doubleclick, x, y, space?: "screen"\|"canvas", clicks?}], mods?}` | Drive the active tool through the same code path as the mouse; `clicks` on a `down` is the press count (3 = triple click); returns the selection, the tool and its cursor at the last event (e.g. `LoadedText`, `ThreadLink`, `Unthread`) |
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| `ui.key` / `ui.text` | `{key, shift?, alt?, cmd?}` / `{text}` | Synthetic keyboard input (typing into a text frame) |
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| `ui.move` / `ui.click` / `ui.drag` | screen points, `button?: left\|right\|middle` | Real egui pointer input — reaches every widget, menu and panel |
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| `ui.set` | `{brightness?, panel?, rulers?, guides?, frameEdges?, baselineGrid?, textThreads?, screenMode?, zoom?, page?, fit?}` | UI state |
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| `ui.dialog.open` | `{id, fields?}` | Open a dialog by id (e.g. `paragraphStyleOptions` or `characterStyleOptions` with `{name, section}`, or `{new: true}` for a new style) |
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| `ui.dialog.set` / `ui.dialog.confirm` / `ui.dialog.cancel` | `{field, value}` | Fill and confirm the open dialog |
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| `ui.resize`, `ui.focus` | | Window control |
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| `ui.screenshot` | `{path?}` | PNG of the whole window |
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| `ui.render` | `{path?, page?, scale?, bleed?}` | Render a page headlessly (PNG; base64 if no path) |
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| `app.open` / `app.save` / `app.export` / `app.quit` | | Files |
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Data merge runs through `engine.execute` like any command: `data.source.select`, `data.fields`, `data.placeholder.add` /
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`.remove`, `data.options`, `data.preview` / `data.preview.stop`, `data.merge`. `data.merge` creates and activates a new
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merged document; the template stays as it was ([agents.md](agents.md#data-merge)).
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Headless window screenshots (locked screen, hidden window): `cargo run -p designcraft-ui-egui --example ui_shot -- script.jsonl`, where each line is one of the requests above, `{"shot": "/abs/out.png"}` or `{"steps": n}` (renders the whole UI offscreen with wgpu).
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The MCP server (`designcraft-cli mcp`) wraps the same methods for Claude and other agents.
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