Initial commit

arm9/source/gui/input/InputRepeater.h

@@ -0,0 +1,31 @@
+#pragma once
+#include "InputProvider.h"
+
+/// @brief Input provider that wraps another input provider and adds key repetition on top of it.
+class InputRepeater : public InputProvider
+{
+public:
+    InputRepeater(InputProvider* inputProvider, InputKey repeatMask, u16 firstRepeatDelay, u16 nextRepeatDelay)
+        : _inputProvider(inputProvider), _state(State::Idle)
+        , _frameCounter(0), _repeatMask(repeatMask)
+        , _firstRepeatDelayFrames(firstRepeatDelay)
+        , _nextRepeatDelayFrames(nextRepeatDelay) { }
+
+    void Update() override;
+    void Reset() override;
+
+private:
+    enum class State
+    {
+        Idle,
+        FirstRepeat,
+        NextRepeat
+    };
+
+    InputProvider* _inputProvider;
+    State _state;
+    u16 _frameCounter;
+    InputKey _repeatMask;
+    u16 _firstRepeatDelayFrames;
+    u16 _nextRepeatDelayFrames;
+};