ltsteamplugin Lua Plugin

When using the Millennium loader, the Lua backend exposes several global functions that act as an RPC bridge to the LuaTools desktop application (running at http://127.0.0.1:6767).

To call these methods from the injected luatools.js page context, use the Millennium bridge API:

window.Millennium.callServerMethod("luatools", "<MethodName>", args)

Important: Millennium looks up these methods as GLOBAL Lua functions, not as members of the table returned by the plugin entrypoint. Any new RPC method added to the JavaScript side must have a corresponding global function defined in the Lua backend.

The plugin implements the standard Millennium lifecycle hooks to manage the injector stub:

• on_load: Initializes the plugin. It ensures the LuaTools backend is running, copies necessary Webkit files (luatools.js, steamdb-webkit.css), injects them into the browser context, and calls millennium.ready().
• on_unload: Performs cleanup when the plugin is unloaded.
• on_frontend_loaded: Triggered when the frontend is loaded. It re-runs the file copying process to ensure any updated luatools.js files are picked up by the browser context.

return {
    on_load            = on_load,
    on_unload          = on_unload,
    on_frontend_loaded = on_frontend_loaded,
}

The following global functions are available via the luatools RPC bridge. They relay requests to the LuaTools HTTP API. Most methods accept an appid (string/number) as a parameter.

-- App management
HasLuaToolsForApp(appid)
DeleteLuaToolsForApp(appid)
CheckApisForApp(appid)

-- Installation/Downloading
StartAddViaLuaToolsFromUrl(appid, source)
GetAddViaLuaToolsStatus(appid)
CancelAddViaLuaTools()
StartLuaToolsAdd(appid)
GetLuaToolsAddStatus(appid)
PickLuaToolsAddSource(appid, source)

-- UI & Steam
RestartSteam()
OpenSettings()
OpenFix(appid)

-- Loaded Apps Popup
ReadLoadedApps()
DismissLoadedApps()