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ChuckandClaude Opus 5.5
c20c0beac2
* feat(web): the Display tab is an ES-module page, with a page-visibility service (stage 4) - core/visibility.js: each page gets ctx.visibility (whileVisible, every, isVisible). Work registered there runs only while the page's tab is active and the browser tab visible, and ends when the page is swapped out. It reads the active tab from window.LEDVisibility, so it agrees with the classic partials. The registry gained a mountContext option for per-mount services. - pages/display.js replaces display.html's two inline scripts. The 5 s sync status poll runs through ctx.visibility.every; the status and scroll-speed hint requests go through ctx.api with ctx.signal, as does the Vegas order widget's plugin-list request. The Advanced toggle is a delegated data-action; window.updateSyncUI is a deprecated alias. - New DOM suites test_visibility_service.js and test_display_page.js; test_display_partial_ids.js imports the module. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * refactor(web): no computed keys in the Display page's readout and destroy Codacy's object-injection rule flagged v[id] and ctx.state[name]. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
LEDMatrix Documentation
This directory contains guides, references, and architectural notes for the LEDMatrix project. If you are setting up a Pi for the first time, start with the project root README — it covers hardware, OS imaging, and the one-shot installer. The pages here go deeper.
I'm a new user
- GETTING_STARTED.md — first-time setup walkthrough
- WEB_INTERFACE_GUIDE.md — using the web UI
- PLUGIN_STORE_GUIDE.md — installing and managing plugins
- WIFI_NETWORK_SETUP.md — WiFi and AP-mode setup
- TROUBLESHOOTING.md — common issues and fixes (PERMISSIONS.md for "Permission denied")
- SSH_UNAVAILABLE_AFTER_INSTALL.md — recovering SSH after install
- CONFIG_DEBUGGING.md — diagnosing config problems
- LOW_MEMORY_BOARDS.md — Pi Zero 2 W / 3B+ / 1GB Pi 4 memory limits
I want to write a plugin
Start here:
- PLUGIN_DEVELOPMENT_GUIDE.md — end-to-end workflow
- PLUGIN_QUICK_REFERENCE.md — cheat sheet
- PLUGIN_API_REFERENCE.md — display, cache, and plugin-manager APIs
- PLUGIN_ERROR_HANDLING.md — error-handling patterns
- DEV_PREVIEW.md — preview plugins on your dev machine without a Pi
- EMULATOR_SETUP_GUIDE.md — running the matrix emulator
Going deeper:
- ADVANCED_PLUGIN_DEVELOPMENT.md — advanced patterns
- PLUGIN_ARCHITECTURE_SPEC.md — original plugin-system design spec (historical; see its banner for what has drifted)
- PLUGIN_DEPENDENCY_GUIDE.md / PLUGIN_DEPENDENCY_TROUBLESHOOTING.md
- PLUGIN_WEB_UI_ACTIONS.md (+ example JSON)
- PLUGIN_CUSTOM_ICONS.md
- PLUGIN_REGISTRY_SETUP_GUIDE.md (+ registry template)
- STARLARK_APPS_GUIDE.md — Starlark-based mini-apps
- Widget guide — built-in
x-widgets and custom widgets - ADAPTIVE_LAYOUT.md — render legibly on any panel size (opt-in font/layout scaling)
- plugin-safety-harness.md — test a plugin across every screen and matrix size
Configuring plugins
- PLUGIN_CONFIG_QUICK_START.md — minimal config you need
- PLUGIN_CONFIGURATION_GUIDE.md — schema design
- PLUGIN_ELEMENT_STYLING.md — let users restyle, move, hide and scale individual elements (per display mode, if you have them)
- PLUGIN_CONFIGURATION_TABS.md — multi-tab UI configs
- PLUGIN_CONFIG_ARCHITECTURE.md — how the config system works
- PLUGIN_CONFIG_CORE_PROPERTIES.md — properties every plugin honors
Advanced features
- ADVANCED_FEATURES.md — Vegas scroll, on-demand display, cache management, background services, permissions
- FONT_MANAGER.md — font system
- SCROLL_PERFORMANCE.md — how scrolling is paced, and how to make a plugin's marquee smooth
- OFFSCREEN_RENDERING.md — rendering plugin content off the render thread
- PERMISSIONS.md — file ownership, sudo rules, repair scripts
- MQTT bridge — control the display from Home Assistant over MQTT
Reference
- CONFIG_REFERENCE.md — every key in config.json and config_secrets.json
- REST_API_REFERENCE.md — all web-interface HTTP endpoints
- PLUGIN_API_REFERENCE.md — Python APIs available to plugins
- src/common/README.md — shared helper modules plugins can import
- DEVELOPER_QUICK_REFERENCE.md — common dev tasks
Contributing to LEDMatrix itself
- ARCHITECTURE.md — processes, display loop, plugin system, web UI; where to start reading
- WEB_FRONTEND_ARCHITECTURE.md — the web UI's ES modules, page lifecycle and form model, and the page-by-page migration to them
- IPC_CONTROL_SOCKET.md — the display's control socket: protocol, security model, stage plan
- DEVELOPMENT.md — environment setup
- HOW_TO_RUN_TESTS.md — running the test suite
- MULTI_ROOT_WORKSPACE_SETUP.md — multi-repo workspace
- MIGRATION_GUIDE.md — breaking changes between releases
- SPORTS_UNIFICATION.md — how shared sports scoreboard code moves into
src/common
Audits
- audits/WEB_UI_AUDIT_2026-09.md — web UI audit (September 2026)
Contributing to the docs
- Markdown only, professional tone, minimal emoji.
- Prefer adding to an existing page over creating a new one. If you add a new page, link it from this index in the section it belongs to.
- If a page becomes obsolete, delete it (it stays in the repository
history) and fix the links to it;
test/test_doc_links.pyfails on broken relative links. - Keep examples runnable — paths, commands, and config keys here should match what's actually in the repo.