Fully expose InputBindings to Lua

data/meta/Input.lua

@@ -0,0 +1,201 @@
+-- Copyright © 2008-2024 Pioneer Developers. See AUTHORS.txt for details
+-- Licensed under the terms of the GPL v3. See licenses/GPL-3.txt
+
+-- This file implements type information about C++ classes for Lua static analysis
+-- TODO: document function usage
+
+---@meta
+
+---@class Input
+local Input = {}
+
+--- List of input keys to be used with various input functions.
+--- The list is a mostly-complete port of common SDL_KeyCode values, indexed by
+--- lowercase key names.
+---@type table<string, integer>
+Input.keys = {}
+
+--==================================
+
+---@class Input.ActionBinding
+---@field id string
+---@field type string
+---@field binding table
+---@field binding2 table
+local ActionBinding = {}
+
+function ActionBinding:SetPressed() end
+function ActionBinding:SetReleased() end
+
+---@return boolean
+function ActionBinding:IsActive() end
+---@return boolean
+function ActionBinding:IsJustActive() end
+
+---@param cb fun()
+function ActionBinding:OnPressed(cb) end
+---@param cb fun()
+function ActionBinding:OnReleased(cb) end
+
+--==================================
+
+---@class Input.AxisBinding
+---@field id string
+---@field type string
+---@field axis table
+---@field positive table
+---@field negative table
+local AxisBinding = {}
+
+---@param val number
+function AxisBinding:SetValue(val) end
+---@return number
+function AxisBinding:GetValue() end
+
+---@param cb fun(val: number)
+function AxisBinding:OnValueChanged(cb) end
+
+--==================================
+
+---@class Input.JoystickInfo
+---@field name string
+---@field numButtons integer
+---@field numHats integer
+---@field numAxes integer
+local JoystickInfo = {}
+
+---@param button integer
+---@return boolean
+function JoystickInfo:GetButtonState(button) end
+
+---@param hat integer
+---@return boolean
+function JoystickInfo:GetHatState(hat) end
+
+---@param axis integer
+---@return number
+function JoystickInfo:GetAxisValue(axis) end
+
+---@param axis integer
+---@return number
+function JoystickInfo:GetAxisDeadzone(axis) end
+
+---@param axis integer
+---@param deadzone number
+function JoystickInfo:SetAxisDeadzone(axis, deadzone) end
+
+---@param axis integer
+---@return number
+function JoystickInfo:GetAxisCurve(axis) end
+
+---@param axis integer
+---@param curve number
+function JoystickInfo:SetAxisCurve(axis, curve) end
+
+---@param axis integer
+---@return boolean
+function JoystickInfo:GetAxisZeroToOne(axis) end
+---@param axis integer
+---@param zeroToOne boolean
+function JoystickInfo:SetAxisZeroToOne(axis, zeroToOne) end
+
+--==================================
+
+---@class Input.InputFrame
+---@field id string
+local InputFrame = {}
+
+-- Add the given action binding to this frame
+---@param action Input.ActionBinding
+function InputFrame:AddAction(action) end
+
+-- Add the given axis binding to this frame
+---@param axis Input.AxisBinding
+function InputFrame:AddAxis(axis) end
+
+-- Add the input frame to the stack of active inputs
+---@return boolean
+function InputFrame:AddToStack() end
+
+-- Remove the input frame from the stack of active inputs
+function InputFrame:RemoveFromStack() end
+
+--==================================
+
+---@param enable boolean
+function Input.EnableBindings(enable) end
+
+---@return (Input.AxisBinding|Input.ActionBinding)[][][]
+function Input.GetBindingPages() end
+
+---@param id string
+---@return Input.ActionBinding?
+function Input.GetActionBinding(id) end
+
+---@param id string
+---@return Input.AxisBinding?
+function Input.GetAxisBinding(id) end
+
+---@param key integer
+function Input.GetKeyName(key) end
+
+---@return number
+function Input.GetJoystickCount() end
+
+---@param joy integer
+---@return string
+function Input.GetJoystickName(joy) end
+
+---@param joy integer
+---@return boolean
+function Input.IsJoystickConnected(joy) end
+
+---@param joy integer
+---@return Input.JoystickInfo?
+function Input.GetJoystick(joy) end
+
+---@param joy integer
+function Input.SaveJoystickConfig(joy) end
+
+---@param binding Input.AxisBinding | Input.ActionBinding
+function Input.SaveBinding(binding) end
+
+---@return boolean
+function Input.GetMouseYInverted() end
+
+---@param inverted boolean
+function Input.SetMouseYInverted(inverted) end
+
+---@return boolean
+function Input.GetJoystickEnabled() end
+
+---@param enabled boolean
+function Input.SetJoystickEnabled(enabled) end
+
+---@return boolean
+function Input.GetMouseCaptured() end
+
+-- Create an InputFrame to add action/axis bindings to the active input stack
+---@param id string The debug identifier of this InputFrame
+---@param modal boolean? Should this InputFrame be modal?
+---@return Input.InputFrame
+function Input.CreateInputFrame(id, modal) end
+
+-- Register an ActionBinding from Lua with the given default key associations
+---@param id string The identifier of the action binding. Must be globally unique.
+---@param groupId string The page and group this action binding is organized into, in the form "page.group"
+---@param b1 table? The primary keychord for this binding
+---@param b2 table? The secondary keychord for this binding
+---@return Input.ActionBinding
+function Input.RegisterActionBinding(id, groupId, b1, b2) end
+
+-- Register an AxisBinding from Lua with the given default key associations
+---@param id string The identifier of the axis binding. Must be globally unique.
+---@param groupId string The page and group this axis binding is organized into, in the form "page.group"
+---@param pos table? The positive-direction keychord for this axis binding
+---@param neg table? The negative-direction keychord for this axis binding
+---@param axis table? The joystick axis to associate with this axis binding
+---@return Input.AxisBinding
+function Input.RegisterAxisBinding(id, groupId, pos, neg, axis) end
+
+return Input

data/modules/Debug/TestInput.lua

@@ -0,0 +1,23 @@
+-- Copyright © 2008-2024 Pioneer Developers. See AUTHORS.txt for details
+-- Licensed under the terms of the GPL v3. See licenses/GPL-3.txt
+
+-- This file tests the Lua input API
+
+--[[
+local Input = require 'Input'
+
+local action_disable = Input.RegisterActionBinding("TestInputDisable", "Debug.TestInput", { activator = { key = Input.keys["return"] } })
+
+local frame = Input.CreateInputFrame("TestInputFrame", true)
+frame:AddAction(action_disable)
+
+action_disable:OnPressed(function()
+	frame:RemoveFromStack()
+
+	print("Test!")
+end)
+
+require 'Event'.Register("onGameStart", function()
+	frame:AddToStack()
+end)
+--]]

data/pigui/libs/forwarded.lua

@@ -4,6 +4,7 @@
 -- Stuff from the C++ side that we want available directly in Lua
 -- without any wrappers
 local Engine = require 'Engine'
+local Input = require 'Input'
 local pigui = Engine.pigui
 
 ---@class ui
@@ -120,7 +121,7 @@ ui.setColumnOffset = pigui.SetColumnOffset
 ui.getColumnWidth = pigui.GetColumnWidth
 ui.setColumnWidth = pigui.SetColumnWidth
 ui.getScrollY = pigui.GetScrollY
-ui.keys = pigui.keys
+ui.keys = Input.keys
 ui.isKeyReleased = pigui.IsKeyReleased
 ui.playSfx = pigui.PlaySfx
 ui.isItemHovered = pigui.IsItemHovered

data/pigui/modules/autopilot-window.lua

@@ -133,7 +133,7 @@ local speed_limiter = (function()
 		-- don't show tooltip during animation
 		local tooltip = variant and bindings.limiter.tooltip or anim_active and "" or lui.TURN_OFF
 		if ui.mainMenuButton(icons.speed_limiter, tooltip .. "##speed_limiter_toggle", variant) then
-				bindings.limiter.action:OnPress()
+				bindings.limiter.action:SetPressed()
 		end
 
 		if toggle_limiter then

src/Input.cpp

@@ -314,7 +314,6 @@ bool Manager::AddInputFrame(InputFrame *frame)
 
 	m_inputFrames.push_back(frame);
 	frame->active = true;
-	frame->onFrameAdded.emit(frame);
 	m_frameListChanged = true;
 
 	return true;
@@ -363,7 +362,6 @@ void Manager::RemoveInputFrame(InputFrame *frame)
 
 		ClearInputFrameState(frame);
 		frame->active = false;
-		frame->onFrameRemoved.emit(frame);
 		m_frameListChanged = true;
 	}
 }
@@ -414,6 +412,16 @@ InputBindings::Axis *Manager::GetAxisBinding(const std::string &id)
 	return axisBindings.count(id) ? &axisBindings[id] : &Input::nullAxis;
 }
 
+bool Manager::HasActionBinding(const std::string &id) const
+{
+	return actionBindings.count(id) > 0;
+}
+
+bool Manager::HasAxisBinding(const std::string &id) const
+{
+	return axisBindings.count(id) > 0;
+}
+
 /*
 
 	STATE MANAGEMENT

src/Input.h

@@ -49,9 +49,10 @@ namespace Input {
 		using Axis = InputBindings::Axis;
 		using Action = InputBindings::Action;
 
-		InputFrame(Input::Manager *man, bool modal = false) :
+		InputFrame(Input::Manager *man, bool modal = false, std::string_view id = "") :
 			manager(man),
-			modal(modal)
+			modal(modal),
+			id(id)
 		{}
 
 		std::vector<Action *> actions;
@@ -61,16 +62,11 @@ namespace Input {
 		Manager *manager = nullptr;
 		bool active = false;
 		bool modal = false;
+		std::string id;
 
 		// Call this at startup to register all the bindings associated with the frame.
 		virtual void RegisterBindings(){};
 
-		// Called when the frame is added to the stack.
-		sigc::signal<void, InputFrame *> onFrameAdded;
-
-		// Called when the frame is removed from the stack.
-		sigc::signal<void, InputFrame *> onFrameRemoved;
-
 		Action *AddAction(const std::string &id);
 		Axis *AddAxis(const std::string &id);
 	};
@@ -160,11 +156,13 @@ class Input::Manager {
 	// The returned binding pointer points to the actual binding.
 	InputBindings::Action *AddActionBinding(const std::string &id, BindingGroup *group, InputBindings::Action &&binding);
 	InputBindings::Action *GetActionBinding(const std::string &id);
+	bool HasActionBinding(const std::string &id) const;
 
 	// Creates a new axis binding, copying the provided binding.
 	// The returned binding pointer points to the actual binding.
 	InputBindings::Axis *AddAxisBinding(const std::string &id, BindingGroup *group, InputBindings::Axis &&binding);
 	InputBindings::Axis *GetAxisBinding(const std::string &id);
+	bool HasAxisBinding(const std::string &id) const;
 
 	// Call EnableBindings() to temporarily disable handling input bindings while
 	// you're recording a new input binding or are in a modal window.

src/lua/Lua.cpp

@@ -142,6 +142,7 @@ namespace Lua {
 	void UninitModules()
 	{
 		LuaEvent::Uninit();
+		LuaInput::Uninit();
 
 		delete Pi::luaNameGen;