openpencil/CONTRIBUTING.md
Danila Poyarkov 6545f20c53
Refactor architecture boundaries across core, app, and packages (#234)
* refactor(core): decompose editor factory and action modules

Split the monolithic editor factory and large action modules into focused
domain helpers:

- create.ts assembles context through bridge modules (clipboard,
  components, structure, undo) and delegates to graph-reads, graph-events,
  layout-runner, component-sync, and state factory
- structure.ts delegates to group, container-wrap, auto-layout-wrap,
  reorder, and state-toggle helpers
- selection.ts delegates to hit-test, overlays, container navigation,
  and read helpers
- clipboard.ts delegates to subtree-history, images, export, copy,
  fonts, and placement helpers
- shapes.ts delegates to pen actions and section-adopt
- components.ts delegates to focus and instances helpers
- alignment.ts delegates to flip-rotate helper
- text.ts uses explicit TextEditSession for snapshot comparison

New focused modules: nudge, variable-bindings, layout-mode,
page-viewports, tool-registry, color-space

Undo: history/position and history/snapshot helpers, hardened
batch/rollback with nested batch support and configurable limit

* refactor(core): split tool definitions by domain

Split the monolithic tool registry into domain-specific modules:

- read/ — selection, find, pages, fonts, components, nodes, query, jsx
- create/ — basic shapes, components, vector, JSX render
- modify/ — paint, effects, geometry, layout, state, text, update
- structure/ — basic, arrange, batch, hierarchy, replace, tree
- variables/ — bindings, collections, read, values
- vector/ — boolean, path, export, viewport
- analyze/ — colors, typography, spacing, clusters, diff, eval
- describe/ — summaries, tree, roles, layout-issues
- stock-photo/ — providers, requests, apply
- codegen/ — component-map, tokens

Split registry into core/extended tiers; refine schema and AI adapter

* refactor(core): restructure kiwi codec and instance overrides

Reorganize the Kiwi .fig codec into domain subdirectories:

- binary/ — codec, schema, protocol
- fig/ — file, import, parse (core, worker, transfer)
- node-change/ — convert, export-node, serialize, plugin-data
- instance-overrides/ — constraints, dsd, populate, props, resolve,
  symbol-overrides, symbol-props, sync, types

Vendored kiwi-schema/ left isolated

* refactor(core): split profiler, icons, IO, and add subpath exports

Profiler: speedscope-export, capture-session, hud-controller
Icons: api, svg, types, render, create-icons tool
IO: format registry and subpath exports
Canvas/color/text/vector: targeted cleanup

Add deliberate subpath exports: random, xpath, vector, color, canvas,
scene-graph, kiwi, design-jsx, io, tools, editor, layout, canvaskit,
profiler, text, lint, rpc, figma-api, constants

* refactor(vue): decompose canvas input, surface lifecycle, and controls

Canvas surface: gl-surface, kit-loader, render-loop, resize-observer

Canvas input handlers:
- move: drop-target, move-snap, duplicate-drag
- select: select-move, select-hover, select-hit
- resize: resize-rect, resize-vector, resize-start
- transform: rotation, marquee, pan, text-selection
- text-edit: navigation, clipboard, textarea lifecycle
- Shared: click-count, space-key, pan, pan-zoom, draw, raf-scheduler

Editor composition:
- commands split: actions, context, metadata, edit, selection, view
- menu-model split: command-groups, builders, types
- Gradient stop composable reuse in primitive root

Controls: fill, layout, typography, appearance, effects, stroke,
okhcl, prop-scrub, node-props, undo-batch, color-variable-binding
Variables/i18n/document/export helpers

Organize canvas, primitives, controls, editor, and variables into
cohesive module directories with package-local import aliases

Expose MenuActionNode/MenuSeparatorNode from public API

* refactor(app): split document IO, editor session, and automation bridge

Document IO: source-state, naming, writer, reload-source, reload-state,
imported-document, watch-targets, save-targets

Editor session: create, modules, types, accessors, computed, refs
Editor canvas: loader-overlay, collaboration-awareness,
context-selection, menu-actions, menu-model

Automation bridge: eval, tools, exports, files, selection, RPC fallback

AI/ACP: transport, map-update, permission, debug, chat effects/storage
Collab: awareness, graph-bindings, yjs-sync, follow, session, types
Shell keyboard: actions, bindings, clipboard, focus, nudging,
raw-events, registry, reserved, shortcuts, space-tool
Shell menu: app-menu, document-name, entry, files

Demo: colors, effects, helpers, section builders (components,
app-preview, effects, standalone, variables) — document.ts reduced
from 981 to 32 lines as pure orchestrator

Move app modules under src/app/ with organized domain structure:
editor, document, ai, collab, shell, automation, demo, tabs

* refactor(app): decompose UI components with provide/inject context

Split monolithic components using Reka UI-inspired namespace folders
with scoped provide/inject context — no prop drilling:

- CollabPanel/ — context, avatars, share, connected, join
- ColorPickerPanel/ — context, area, format, field groups, sliders
- MobileHud/ — context, action toast, tool badge, file menu, presence
- ProviderSettings/ — context, API key/type, endpoint, tokens, photos
- Toolbar/ — actions, types, desktop, mobile, tool button, flyout
- LayoutSection/ — types, auto-layout, flex, grid, padding, size, clip

Properties helpers: fill-okhcl adapter, fill-label, color-style-row
Menu: entry helpers, document-name rename, stale type removal

* refactor(mcp): split server into focused modules

- browser-rpc — WebSocket client management
- mcp-sessions — session lifecycle
- tool-output — response formatting
- tool-schema — Zod schema generation from ToolDefs
- jsx-preprocess — JSX source transformation
- result — result helpers
- tool-registration — MCP tool wiring
- auth — API key validation
- http-options — CORS/request handling
- stdio-bridge — stdio transport adapter

* refactor(cli): split analyze subcommands and shared helpers

- Analyze subcommands: clusters, colors, spacing, typography
- RPC data loading helper
- Migrate imports to targeted core subpath exports

* refactor(docs): split VitePress config and shared table component

Config helpers: sdk-sidebar, seo, labels, sidebars, locale-theme,
root-theme, locales

Shared SdkDataTable component replaces duplicated table markup in
SdkPropsTable, SdkEventsTable, and SdkSlotsTable

Update contributing and testing docs

* refactor(tauri): decompose desktop entrypoint

Split lib.rs into focused service modules:

- fig_container.rs — .fig archive/compression commands
- fonts.rs — font cache and system font enumeration
- menu.rs — native menu construction
- menu_events.rs — menu event dispatch and devtools toggle
- window.rs — main window show/focus lifecycle

* test: share domain test factories and migrate fixtures

New shared helpers:
- tests/helpers/scene.ts — makeSceneGraph factory
- tests/helpers/vector-network.ts — vertex/segment/network builders
- tests/helpers/fig-traversal.ts — all-node collection, type counts
- tests/helpers/undo.ts — undo test utilities
- tests/helpers/editor-history.ts — editor history test helpers

Migrate render, vector, fig-roundtrip, and undo tests to use shared
factories instead of inline fixture construction

* build: add structural lint rules, split vite config, update docs

Structural lint (oxlint.structure.json + lint/plugin.js):
- 20+ custom rules enforcing package boundaries, lifecycle patterns,
  naming conventions, and import discipline

Vite config split: raw-markdown, canvaskit-assets, pwa, server,
aliases, automation plugins

Remove legacy shims and utils superseded by SDK/core modules
Update AGENTS.md, CONTRIBUTING.md, eval-command docs, tsconfig

* fix(vue): normalize canvas directory casing and remove duplicate export

- Rename Canvas/ to canvas/ in git index to match #vue/canvas/* imports
  (PascalCase was correct for component primitives but canvas/ is a
  non-component domain directory)
- Remove duplicate ./random subpath export in core package.json

* fix: add #vue and #core Vite resolve aliases for dev server

* refactor(core): reduce remaining large modules

Split the remaining large core hotspots into cohesive domain modules while preserving public facades and behavior.

- Extract scene graph types, variables, node defaults, and vector-network helpers
- Decompose canvas renderer orchestration, state, paints, colors, lifecycle, labels, and delegated domain methods into renderer/ and labels/ subfolders
- Split Kiwi node-change, binary variable binding, layout, RPC, vector, JSX export, clipboard, design JSX, and Figma proxy helpers
- Replace collision-driven *Fn import aliases with namespace imports and enforce the pattern in lint

Validation:
- bun run check
- bun --filter @open-pencil/vue build
- bun run test:dupes

* fix(app): forward color input attrs

* fix(app): cover section drawing errors

* fix(editor): undo option-drag duplicates

* docs: document domain subfolder convention

* fix(app): handle undo redo on keydown

* refactor(app): dispatch shortcuts from keydown

* refactor: group prefixed domain modules

* refactor(app): use tinykeys for shortcuts

* refactor(core): group symbol override modules

* refactor(core): group fig kiwi container helper

* refactor(canvas): split overlay rendering modules

* refactor(vue): remove unused internal barrels

* fix(app): lay out demo components before instancing

* fix(app): restore demo badge spacing

* perf(canvas): split scene and overlay rendering

* refactor(vue): wrap wheel gesture lifecycle

* fix(canvas): wait for fonts before hiding loader

* docs: update unreleased changelog
2026-04-30 15:14:19 +03:00

6.1 KiB

Contributing

Setup

git clone https://github.com/open-pencil/open-pencil.git
cd open-pencil
git clone https://github.com/open-pencil/vue-stream-markdown.git
bun install

Development

bun run dev          # Vite dev server on localhost:1420
bun run tauri dev    # Tauri desktop app with hot reload

# For macOS release builds with ad-hoc signing (no Apple Developer account, local testing only):
APPLE_SIGNING_IDENTITY=- bun run tauri build

Quality checks

Run all of these before submitting a PR:

bun run check        # oxlint + typecheck
bun run format       # oxfmt with import sorting
bun run test:dupes   # jscpd < 3% duplication
bun run test:unit    # bun:test (tests/engine/)
bun run test         # Playwright E2E (auto-starts dev server)

Project structure

  • packages/core — scene graph, renderer, layout, codec (zero DOM deps)
  • packages/cli — headless CLI for .fig inspection and export
  • packages/mcp — MCP server for AI tools (stdio + HTTP)
  • packages/docs — VitePress documentation site (openpencil.dev)
  • src/ — Tauri/Vite desktop editor

Conventions

See AGENTS.md for the full architecture reference, code conventions, and quality checklist. Key points:

  • Bun runtime, not Node
  • Tailwind 4 for styles, no inline CSS or <style> blocks
  • No any, no ! non-null assertions
  • @/ import alias for app code, relative imports within core
  • Use crypto.getRandomValues(), never Math.random()
  • Icons via unplugin-icons (<icon-lucide-*>)
  • Use existing deps and Reka UI components before hand-rolling (see AGENTS.md → Code quality)
  • Follow the Reka UI-inspired file structure: PascalCase component namespace folders and Vue files, lowercase/kebab non-component domains, and multi-file root components colocated inside their namespace folder

Test IDs (data-test-id)

Every interactive or structurally significant element must have a data-test-id attribute. These are used by Playwright E2E tests and must follow the naming convention below.

Naming rules

  • kebab-case, all lowercase
  • Pattern: {component}-{element} or {component}-{element}-{variant}
  • Mobile counterparts are prefixed with mobile-
  • Dynamic IDs use template literals: :data-test-id="`toolbar-tool-${key.toLowerCase()}`"

Nomenclature

Prefix Component Examples
toolbar- Desktop toolbar toolbar, toolbar-tool-select, toolbar-flyout-frame, toolbar-flyout-item-ellipse
mobile-toolbar- Mobile toolbar mobile-toolbar, mobile-toolbar-prev, mobile-toolbar-next, mobile-toolbar-tool-select, mobile-toolbar-flyout-frame, mobile-toolbar-copy, mobile-toolbar-front
mobile-toolbar-tools Mobile tools category Container for drawing tools
mobile-toolbar-edit Mobile edit category Container for edit actions (copy, paste, cut, duplicate, delete)
mobile-toolbar-arrange Mobile arrange category Container for arrange actions (front, back, group, ungroup, lock)
mobile-drawer- Mobile bottom drawer mobile-drawer, mobile-drawer-handle, mobile-drawer-pages, mobile-drawer-content, mobile-drawer-layers, mobile-drawer-design, mobile-drawer-code, mobile-drawer-ai
mobile-ribbon- Mobile bottom tab bar mobile-ribbon, mobile-ribbon-layers, mobile-ribbon-design, mobile-ribbon-code, mobile-ribbon-ai
layers- Layers panel layers-panel, layers-header, layers-tree, layers-item
pages- Pages panel pages-panel, pages-header, pages-item, pages-item-input, pages-add
properties- Properties panel properties-panel, properties-tab-design, properties-tab-code, properties-tab-ai, properties-zoom
design- Design tab design-node-header, design-multi-header, design-panel-single, design-panel-multi, design-panel-empty
position- Position section position-section, position-align-left, position-flip-horizontal, position-rotate-90
layout- Layout section layout-section, layout-add-auto, layout-remove-auto, layout-direction-horizontal
fill- Fill section fill-section, fill-section-add, fill-item
stroke- Stroke section stroke-section, stroke-section-add, stroke-item
effects- Effects section effects-section, effects-section-add, effects-item
export- Export section export-section, export-section-add, export-button, export-item
typography- Typography section typography-section, typography-missing-font
variables- Variables variables-section, variables-dialog, variables-add-variable
context- Context menu context-copy, context-paste, context-delete, context-group
color- Color picker color-picker-popover, color-picker-swatch, color-hex-input
fill-picker- Fill picker fill-picker-swatch, fill-picker-tab-solid, fill-picker-tab-gradient
font-picker- Font picker font-picker-trigger, font-picker-search, font-picker-item
chat- Chat / AI panel chat-panel, chat-input, chat-send-button, chat-messages
code- Code panel code-panel, code-panel-header, code-panel-copy
collab- Collaboration collab-popover, collab-share-button, collab-copy-link
canvas- Canvas canvas-area, canvas-element, canvas-loading
editor- Editor root editor-root, editor-document-name, editor-show-ui
app- App chrome app-logo, app-document-name, app-toggle-ui, app-select-trigger
tabbar- Tab bar tabbar-tab, tabbar-new, tabbar-close
scrub-input Scrub input scrub-input, scrub-input-field
toast- Toast notifications toast-item, toast-close, toast-copy-error
safari-banner Safari warning safari-banner, safari-banner-dismiss

Test fixtures

.fig fixtures in tests/fixtures/ are Git LFS. Use git push --no-verify to skip the slow LFS pre-push hook unless you changed .fig files.

Commits

Follow the existing style in git log. Keep messages concise. Update CHANGELOG.md for user-facing changes.