query for InputDeviceState

stepmania/src/RageInput.cpp

@@ -68,6 +68,22 @@ CString RageInput::GetDeviceSpecificInputString( const DeviceInput &di )
 	return di.toString();
 }
 
+InputDeviceState RageInput::GetInputDeviceState( InputDevice id )
+{
+	FOREACH( InputHandler*, m_pDevices, i )
+	{
+		vector<InputDevice> vDevices;
+		vector<CString> vDescriptions;
+		(*i)->GetDevicesAndDescriptions( vDevices, vDescriptions );
+
+		bool bMatch = find(vDevices.begin(), vDevices.end(), id) != vDevices.end();
+		if( bMatch )
+			return (*i)->GetInputDeviceState(id);
+	}
+
+	return InputDeviceState_INVALID;
+}
+
 
 // lua start
 #include "LuaBinding.h"

stepmania/src/RageInput.h

@@ -19,6 +19,7 @@ public:
 	void WindowReset();
 	void AddHandler( InputHandler *pHandler );
 	CString GetDeviceSpecificInputString( const DeviceInput &di );
+	InputDeviceState GetInputDeviceState( InputDevice id );
 
 	// Lua
 	void PushSelf( lua_State *L );

stepmania/src/RageInputDevice.h

@@ -39,6 +39,16 @@ const CString& InputDeviceToString( InputDevice i );
 InputDevice StringToInputDevice( const CString& s );
 
 
+enum InputDeviceState
+{
+	InputDeviceState_Connected,
+	InputDeviceState_Disconnected,
+	InputDeviceState_MissingMultitap,
+	NUM_InputDeviceState,
+	InputDeviceState_INVALID
+};
+
+
 /* Only raw, unshifted keys go in this table; this doesn't include internationalized
  * keyboards, only keys that we might actually want to test for programmatically.  Any
  * other keys are mapped to KEY_OTHER_0 and up.  (If we want to support real international

stepmania/src/arch/InputHandler/InputHandler.h

@@ -30,9 +30,13 @@ public:
 	virtual void Update( float fDeltaTime ) { }
 	virtual void GetDevicesAndDescriptions( vector<InputDevice>& vDevicesOut, vector<CString>& vDescriptionsOut ) = 0;
 	
-	// override to return a pretty string that's specific to the controller type
+	// Override to return a pretty string that's specific to the controller type.
 	virtual CString GetDeviceSpecificInputString( const DeviceInput &di ) { return di.toString(); }
 
+	// Override to find out whether the controller is currently plugged in.
+	// Not all InputHandlers will support this.  Not applicable to all InputHandlers.
+	virtual InputDeviceState GetInputDeviceState( InputDevice id ) { return InputDeviceState_Connected; }
+
 	/* In Windows, some devices need to be recreated if we recreate our main window.
 	 * Override this if you need to do that. */
 	virtual void WindowReset() { }