Add touch input support, add fast scrolling support for coverflow display mode, fix use after free bug in banner list mode

CHANGELOG.md

@@ -4,6 +4,11 @@
 
 ### Added
 - Ability to set the position of the top screen cover image in custom themes
+- Support for fast scrolling with the L and R buttons in coverflow display mode
+- Support for touch input
+
+### Fixed
+- Use after free bug with the texture load request in Label3DView. This occurred for example when spamming B in banner list mode.
 
 ## [v1.2.0] - 29 Mar 2026
 

arm7/source/main.cpp

@@ -30,6 +30,7 @@
 #include "ExitMode.h"
 #include "Arm7State.h"
 #include "mmc/tmio.h"
+#include "touchScreen.h"
 
 static NocashOutputStream sNocashOutputStream;
 static PlainLogger sPlainLogger = PlainLogger(LogLevel::All, std::unique_ptr<IOutputStream>(&sNocashOutputStream));
@@ -42,19 +43,14 @@ static RtcIpcService sRtcIpcService;
 
 ILogger* gLogger = &sThreadSafeLogger;
 
-static rtos_event_t sVBlankEvent;
+static rtos_event_t sVCountEvent;
 static ExitMode sExitMode;
 static Arm7State sState;
 static volatile u8 sMcuIrqFlag = false;
 
-static void vblankIrq(u32 irqMask)
-{
-    rtos_signalEvent(&sVBlankEvent);
-}
-
 static void vcountIrq(u32 irqMask)
 {
-    SHARED_KEY_XY = REG_RCNT0_H;
+    rtos_signalEvent(&sVCountEvent);
 }
 
 static void mcuIrq(u32 irq2Mask)
@@ -88,12 +84,13 @@ static void checkMcuIrq(void)
     }
 }
 
-static void initializeVBlankIrq()
+static void initializeVCountIrq()
 {
-    rtos_createEvent(&sVBlankEvent);
+    rtos_createEvent(&sVCountEvent);
-    rtos_setIrqFunc(RTOS_IRQ_VBLANK, vblankIrq);
+    gfx_setVCountMatchLine(96);
-    rtos_enableIrqMask(RTOS_IRQ_VBLANK);
+    rtos_setIrqFunc(RTOS_IRQ_VCOUNT, vcountIrq);
-    gfx_setVBlankIrqEnabled(true);
+    rtos_enableIrqMask(RTOS_IRQ_VCOUNT);
+    gfx_setVCountMatchIrqEnabled(true);
 }
 
 static void clearSoundRegisters()
@@ -145,12 +142,7 @@ static void initializeArm7()
     sSoundIpcService.Start();
     sRtcIpcService.Start();
 
-    gfx_setVCountMatchLine(96);
+    initializeVCountIrq();
-    rtos_setIrqFunc(RTOS_IRQ_VCOUNT, vcountIrq);
-    rtos_enableIrqMask(RTOS_IRQ_VCOUNT);
-    gfx_setVCountMatchIrqEnabled(true);
-
-    initializeVBlankIrq();
 
     if (isDSiMode())
     {
@@ -158,6 +150,8 @@ static void initializeArm7()
         rtos_enableIrq2Mask(RTOS_IRQ2_MCU);
     }
 
+    touch_init();
+
     ipc_setArm7SyncBits(7);
 }
 
@@ -233,7 +227,16 @@ int main()
 
     while (true)
     {
-        rtos_waitEvent(&sVBlankEvent, true, true);
+        rtos_waitEvent(&sVCountEvent, true, true);
+        u16 keys = REG_RCNT0_H | RCNT0_H_DATA_PEN;
+        touchPosition touchPos;
+        if (touch_update(touchPos))
+        {
+            keys &= ~RCNT0_H_DATA_PEN; // pen down
+            SHARED_TOUCH_X = touchPos.px;
+            SHARED_TOUCH_Y = touchPos.py;
+        }
+        SHARED_KEY_XY = keys;
         updateArm7();
     }
 

arm7/source/touchScreen.cpp

@@ -0,0 +1,146 @@
+#include "common.h"
+#include <nds/input.h>
+#include <nds/arm7/touch.h>
+
+// See: https://github.com/blocksds/libnds/blob/master/source/arm7/input.c
+
+// === Touchscreen filter configuration ===
+
+// Replace Z1/Z2 values with X/Y noisiness measurements.
+// #define TOUCH_DEBUG_NOISINESS
+
+// The number of frames to debounce/hold pen presses for.
+// Set to 0 to disable.
+#define PEN_DOWN_DEBOUNCE 1
+// The shift (1 << N) used for the IIR filter to average noisy samples across
+// time. Set to 0 to disable.
+#define TOUCH_MAX_NOISE_PEN_UP_IIR_SHIFT 5
+
+// The maximum value of noisiness for pressing a pen down (measurement now valid).
+#define TOUCH_MAX_NOISE_PEN_DOWN 38
+// The minimum value of noisiness for lifting a pen up (measurement no longer valid).
+#define TOUCH_MAX_NOISE_PEN_UP   50
+
+// === Touchscreen filter ===
+
+// IIR filter constants.
+#define TOUCH_MAX_NOISE_PEN_UP_IIR_RATIO (1 << TOUCH_MAX_NOISE_PEN_UP_IIR_SHIFT)
+#define TOUCH_MAX_NOISE_PEN_UP_IIR_MIN (TOUCH_MAX_NOISE_PEN_UP - TOUCH_MAX_NOISE_PEN_UP_IIR_RATIO)
+
+typedef struct {
+    u16 value;      // 1..4095, 0 if invalid
+    u16 noisiness;  // 0..4095, ~15-16 = 1 pixel
+} libnds_touchMeasurementFilterResult;
+
+/**
+ * @brief Perform filtering on the raw touch samples provided to return one
+ * averaged sample and an estimate of how noisy it is, while skipping outliers.
+ *
+ * Internal. See touchFilter.c for more information.
+ */
+extern "C" libnds_touchMeasurementFilterResult libnds_touchMeasurementFilter(u16 values[5]);
+
+void touch_init()
+{
+    touchInit();
+}
+
+bool touch_update(touchPosition& touchPos)
+{
+#if PEN_DOWN_DEBOUNCE > 0
+    static touchPosition lastTouchPosition;
+    static bool lastPenDown = false;
+    static u8 penDownDebounce = 0;
+#else
+    touchPosition lastTouchPosition;
+    bool lastPenDown = false;
+#endif
+
+    bool penDown = touchPenDown();
+    if (penDown)
+    {
+        // Set penDown to false for later fallthroughs to noPenDown.
+        // It will be set to true if all the touch filtering ensures the readout is valid.
+        penDown = false;
+
+        // Measure new touch position.
+        touchRawArray data;
+        if (!touchReadData(&data))
+            goto noPenDown;
+
+        libnds_touchMeasurementFilterResult rawXresult = libnds_touchMeasurementFilter(data.rawX);
+        if (!rawXresult.value)
+            goto noPenDown;
+        libnds_touchMeasurementFilterResult rawYresult = libnds_touchMeasurementFilter(data.rawY);
+        if (!rawYresult.value)
+            goto noPenDown;
+
+        // Valid sample read.
+        u16 noisiness = rawXresult.noisiness > rawYresult.noisiness ? rawXresult.noisiness : rawYresult.noisiness;
+        if (noisiness <= (lastPenDown ? TOUCH_MAX_NOISE_PEN_UP : TOUCH_MAX_NOISE_PEN_DOWN))
+        {
+            lastTouchPosition.z1 = libnds_touchMeasurementFilter(data.z1).value;
+            lastTouchPosition.z2 = libnds_touchMeasurementFilter(data.z2).value;
+
+#if TOUCH_MAX_NOISE_PEN_UP_IIR_SHIFT > 0
+            // Apply an IIR filter on noisy X/Y samples.
+            // Skip the IIR filter if the pen was just pressed.
+            int n = (noisiness - TOUCH_MAX_NOISE_PEN_UP_IIR_MIN);
+            if (noisiness <= 0 || !lastPenDown)
+            {
+                lastTouchPosition.rawx = rawXresult.value;
+                lastTouchPosition.rawy = rawYresult.value;
+            }
+            else if (noisiness <= TOUCH_MAX_NOISE_PEN_UP_IIR_RATIO)
+            {
+                lastTouchPosition.rawx =
+                    ((rawXresult.value * (TOUCH_MAX_NOISE_PEN_UP_IIR_RATIO - n))
+                     + (lastTouchPosition.rawx * n)) >> TOUCH_MAX_NOISE_PEN_UP_IIR_SHIFT;
+                lastTouchPosition.rawy =
+                    ((rawYresult.value * (TOUCH_MAX_NOISE_PEN_UP_IIR_RATIO - n))
+                     + (lastTouchPosition.rawy * n)) >> TOUCH_MAX_NOISE_PEN_UP_IIR_SHIFT;
+            }
+#else
+            lastTouchPosition.rawx = rawXresult.value;
+            lastTouchPosition.rawy = rawYresult.value;
+#endif
+
+            touchApplyCalibration(lastTouchPosition.rawx, lastTouchPosition.rawy, &lastTouchPosition.px, &lastTouchPosition.py);
+            penDown = true;
+        }
+
+#ifdef TOUCH_DEBUG_NOISINESS
+        lastTouchPosition.z1 = rawXresult.noisiness;
+        lastTouchPosition.z2 = rawYresult.noisiness;
+#endif
+    }
+
+noPenDown:
+#if PEN_DOWN_DEBOUNCE > 0
+    // Perform simple debouncing.
+    // Hold new presses for PEN_DOWN_DEBOUNCE frames.
+    if (!penDownDebounce)
+    {
+        if (lastPenDown != penDown)
+        {
+            lastPenDown = penDown;
+            if (penDown)
+                penDownDebounce = PEN_DOWN_DEBOUNCE;
+        }
+    }
+    else
+    {
+        penDownDebounce--;
+    }
+#else
+    lastPenDown = penDown;
+#endif
+
+    // Return the touch position and pen down.
+    if (lastPenDown)
+    {
+        touchPos = lastTouchPosition;
+    }
+
+    return lastPenDown;
+}

arm7/source/touchScreen.h

@@ -0,0 +1,5 @@
+#pragma once
+#include <nds/touch.h>
+
+void touch_init();
+bool touch_update(touchPosition& touchPos);

arm9/gfx/upIcon.grit

@@ -0,0 +1,7 @@
+# tile format
+-gt
+
+# graphics bit depth is 4 (16 color)
+-gB4
+
+-p!

arm9/source/App.cpp

@@ -43,7 +43,7 @@ App::App(IAppSettingsService& appSettingsService, IBgmService& bgmService)
     , _subVramContext(nullptr, &_subObjVram, nullptr, nullptr)
     , _appSettingsService(appSettingsService)
     , _bgmService(bgmService)
-    , _inputProvider(&_inputSource)
+    , _inputProvider(&_keyInputSource, &_touchInputSource)
     , _inputRepeater(&_inputProvider,
         InputKey::DpadLeft | InputKey::DpadRight | InputKey::DpadUp | InputKey::DpadDown | InputKey::L | InputKey::R,
         25, 8)
@@ -134,7 +134,7 @@ void App::Run()
 
     StoreVramState(_vramStateBeforeMakeBottomScreenView);
 
-    _romBrowserBottomScreenView = std::make_unique<RomBrowserBottomScreenView>(
+    _romBrowserBottomScreenView = RomBrowserBottomScreenView::CreateShared(
         &_romBrowserBottomScreenViewModel,
         RomBrowserDisplayModeFactory().GetRomBrowserDisplayMode(
             _romBrowserController.GetRomBrowserDisplaySettings().layout),
@@ -301,8 +301,8 @@ void App::HandleShowGameInfoTrigger()
     // gameInfoDialog->SetGraphics(_chipViewVram);
     // _dialogPresenter.ShowDialog(std::move(gameInfoDialog));
 
-    auto cheatsViewModel = std::make_unique<CheatsViewModel>(_romBrowserController.GetTriggerFileInfo(), &_romBrowserController);
+    auto cheatsViewModel = SharedPtr<CheatsViewModel>::MakeShared(_romBrowserController.GetTriggerFileInfo(), &_romBrowserController);
-    auto cheatsDialog = std::make_unique<CheatsBottomSheetView>(
+    auto cheatsDialog = CheatsBottomSheetView::CreateShared(
         std::move(cheatsViewModel), &_theme->GetMaterialColorScheme(), _theme->GetFontRepository(), &_focusManager);
     _dialogPresenter.ShowDialog(std::move(cheatsDialog));
 }
@@ -316,7 +316,7 @@ void App::HandleHideGameInfoTrigger()
 
 void App::HandleShowDisplaySettingsTrigger()
 {
-    auto displaySettingsDialog = std::make_unique<DisplaySettingsBottomSheetView>(
+    auto displaySettingsDialog = DisplaySettingsBottomSheetView::CreateShared(
         &_displaySettingsBottomSheetViewModel, &_theme->GetMaterialColorScheme(), _theme->GetFontRepository());
     displaySettingsDialog->SetGraphics(_iconButtonViewVram);
     _dialogPresenter.ShowDialog(std::move(displaySettingsDialog));
@@ -337,11 +337,11 @@ void App::HandleNavigateTrigger()
 
 void App::HandleFolderLoadDoneTrigger()
 {
-    _romBrowserTopScreenView.reset();
+    _romBrowserTopScreenView.Reset();
     RestoreVramState(_vramStateAfterMakeBottomScreenView);
     auto displayMode = RomBrowserDisplayModeFactory().GetRomBrowserDisplayMode(
         _romBrowserController.GetRomBrowserDisplaySettings().layout);
-    _romBrowserTopScreenView = std::make_unique<RomBrowserTopScreenView>(
+    _romBrowserTopScreenView = RomBrowserTopScreenView::CreateShared(
         _romBrowserController.GetRomBrowserViewModel(),
         displayMode,
         _materialThemeFileIconFactory.get(),
@@ -358,7 +358,7 @@ void App::HandleChangeDisplayModeTrigger(RomBrowserState newState)
     RestoreVramState(_vramStateBeforeMakeBottomScreenView);
     auto displayMode = RomBrowserDisplayModeFactory().GetRomBrowserDisplayMode(
         _romBrowserController.GetRomBrowserDisplaySettings().layout);
-    _romBrowserBottomScreenView = std::make_unique<RomBrowserBottomScreenView>(
+    _romBrowserBottomScreenView = RomBrowserBottomScreenView::CreateShared(
         &_romBrowserBottomScreenViewModel,
         displayMode,
         _materialThemeFileIconFactory.get(),
@@ -366,7 +366,7 @@ void App::HandleChangeDisplayModeTrigger(RomBrowserState newState)
         &_vblankTextureLoader);
     _romBrowserBottomScreenView->InitVram(_mainVramContext);
     StoreVramState(_vramStateAfterMakeBottomScreenView);
-    _romBrowserTopScreenView = std::make_unique<RomBrowserTopScreenView>(
+    _romBrowserTopScreenView = RomBrowserTopScreenView::CreateShared(
         _romBrowserController.GetRomBrowserViewModel(),
         displayMode,
         _materialThemeFileIconFactory.get(),
@@ -405,7 +405,7 @@ void App::Update()
     bool isRomBrowserVisible = IsRomBrowserVisible();
     if (isRomBrowserVisible && !_exit && curState != RomBrowserState::Launching)
     {
-        _focusManager.Update(_inputRepeater);
+        HandleInput();
     }
 
     if (_topBackground)
@@ -523,3 +523,49 @@ void App::RestoreVramState(const VramState& vramState)
     _texturePaletteVram.SetState(vramState._texPlttVramState);
     _subObjVram.SetState(vramState._subObjVramState);
 }
+
+void App::HandleInput()
+{
+    _focusManager.Update(_inputRepeater);
+    Point touchPoint;
+    if (_inputRepeater.Triggered(InputKey::Touch) &&
+        _inputRepeater.GetCurrentTouchPoint(touchPoint))
+    {
+        // pen down
+        if (_dialogPresenter.IsBottomSheetVisible())
+        {
+            _dialogPresenter.HandlePenDown(touchPoint, _focusManager);
+        }
+        else
+        {
+            _romBrowserBottomScreenView->HandlePenDown(touchPoint, _focusManager);
+        }
+        _lastTouchPoint = touchPoint;
+    }
+    else if (_inputRepeater.Released(InputKey::Touch))
+    {
+        // pen up
+        if (_dialogPresenter.IsBottomSheetVisible())
+        {
+            _dialogPresenter.HandlePenUp(_lastTouchPoint, _focusManager);
+        }
+        else
+        {
+            _romBrowserBottomScreenView->HandlePenUp(_lastTouchPoint, _focusManager);
+        }
+    }
+    else if (_inputRepeater.Current(InputKey::Touch)
+        && _inputRepeater.GetCurrentTouchPoint(touchPoint))
+    {
+        // pen move
+        if (_dialogPresenter.IsBottomSheetVisible())
+        {
+            _dialogPresenter.HandlePenMove(touchPoint, _focusManager);
+        }
+        else
+        {
+            _romBrowserBottomScreenView->HandlePenMove(touchPoint, _focusManager);
+        }
+        _lastTouchPoint = touchPoint;
+    }
+}

arm9/source/App.h

@@ -12,6 +12,7 @@
 #include "gui/DescendingStackVramManager.h"
 #include "material/scheme/scheme.h"
 #include "gui/input/PadInputSource.h"
+#include "gui/input/TouchInputSource.h"
 #include "gui/input/SampledInputProvider.h"
 #include "gui/input/InputRepeater.h"
 #include "gui/VBlankTextureLoader.h"
@@ -62,9 +63,9 @@ private:
     Rgb6Palette _rgb6Palette;
     Animator<int> _fadeAnimator;
 
-    TaskQueue<32, 32> _ioTaskQueue;
+    TaskQueue<32, sizeof(TaskBase) + 32> _ioTaskQueue;
     u32 _ioTaskThreadStack[2048 / 4];
-    TaskQueue<32, 32> _bgTaskQueue;
+    TaskQueue<32, sizeof(TaskBase) + 32> _bgTaskQueue;
     u32 _bgTaskThreadStack[2048 / 4];
 
     std::unique_ptr<ITheme> _theme;
@@ -75,12 +76,13 @@ private:
     IBgmService& _bgmService;
     volatile bool _exit = false;
 
-    PadInputSource _inputSource;
+    PadInputSource _keyInputSource;
+    TouchInputSource _touchInputSource;
     SampledInputProvider _inputProvider;
     InputRepeater _inputRepeater;
 
-    std::unique_ptr<RomBrowserBottomScreenView> _romBrowserBottomScreenView;
+    SharedPtr<RomBrowserBottomScreenView> _romBrowserBottomScreenView;
-    std::unique_ptr<RomBrowserTopScreenView> _romBrowserTopScreenView;
+    SharedPtr<RomBrowserTopScreenView> _romBrowserTopScreenView;
 
     RomBrowserController _romBrowserController;
 
@@ -103,10 +105,13 @@ private:
 
     bool _vcountIrqStarted = false;
 
+    Point _lastTouchPoint = Point(0, 0);
+
     void InitVramMapping() const;
     void DisplaySplashScreen() const;
     void LoadTheme();
     void VCountIrq();
+    void HandleInput();
     void HandleTrigger(RomBrowserStateTrigger trigger, RomBrowserState newState);
     void HandleShowGameInfoTrigger();
     void HandleHideGameInfoTrigger();

arm9/source/DialogPresenter.cpp

@@ -16,11 +16,13 @@ DialogPresenter::DialogPresenter(FocusManager* focusManager, StackVramManager* v
     _baseVramState = _vramManager->GetState();
 }
 
-void DialogPresenter::ShowDialog(std::unique_ptr<DialogView> dialog)
+void DialogPresenter::ShowDialog(SharedPtr<DialogView> dialog)
 {
     if (!_nextDialog)
+    {
         _nextDialog = std::move(dialog);
     }
+}
 
 void DialogPresenter::CloseDialog()
 {
@@ -93,7 +95,7 @@ void DialogPresenter::Update()
             else
             {
                 _newState = State::Idle;
-                _currentDialog.reset();
+                _currentDialog.Reset();
             }
             break;
         }
@@ -153,3 +155,27 @@ void DialogPresenter::InitVram()
     REG_BLDCNT = 0x3944;
     REG_BLDALPHA = (16 << 8) | 0;
 }
+
+void DialogPresenter::HandlePenDown(const Point& touchPoint, FocusManager& focusManager)
+{
+    if (_curState == State::BottomSheetVisible && _currentDialog)
+    {
+        _currentDialog->HandlePenDown(touchPoint, focusManager);
+    }
+}
+
+void DialogPresenter::HandlePenMove(const Point& touchPoint, FocusManager& focusManager)
+{
+    if (_curState == State::BottomSheetVisible && _currentDialog)
+    {
+        _currentDialog->HandlePenMove(touchPoint, focusManager);
+    }
+}
+
+void DialogPresenter::HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager)
+{
+    if (_curState == State::BottomSheetVisible && _currentDialog)
+    {
+        _currentDialog->HandlePenUp(lastTouchPoint, focusManager);
+    }
+}

arm9/source/DialogPresenter.h

@@ -15,7 +15,7 @@ public:
 
     /// @brief Requests to show the given dialog.
     /// @param dialog The dialog to show.
-    void ShowDialog(std::unique_ptr<DialogView> dialog);
+    void ShowDialog(SharedPtr<DialogView> dialog);
 
     /// @brief Closes the current dialog.
     void CloseDialog();
@@ -42,6 +42,21 @@ public:
     /// @brief Initializes vram that is needed for showing dialogs.
     void InitVram();
 
+    /// @brief Handles a pen down event.
+    /// @param touchPoint The touch point.
+    /// @param focusManager The focus manager.
+    void HandlePenDown(const Point& touchPoint, FocusManager& focusManager);
+
+    /// @brief Handles a pen move event.
+    /// @param touchPoint The touch point.
+    /// @param focusManager The focus manager.
+    void HandlePenMove(const Point& touchPoint, FocusManager& focusManager);
+
+    /// @brief Handles a pen up event.
+    /// @param lastTouchPoint The last touch point.
+    /// @param focusManager The focus manager.
+    void HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager);
+
     /// @brief Clears the focus that was stored when a dialog was opened.
     void ClearOldFocus()
     {
@@ -55,6 +70,11 @@ public:
         return _oldFocus;
     }
 
+    bool IsBottomSheetVisible() const
+    {
+        return _curState != State::Idle;
+    }
+
 private:
     enum class State
     {
@@ -66,8 +86,8 @@ private:
     FocusManager* _focusManager;
     StackVramManager* _vramManager;
     u32 _baseVramState;
-    std::unique_ptr<DialogView> _currentDialog;
+    SharedPtr<DialogView> _currentDialog;
-    std::unique_ptr<DialogView> _nextDialog;
+    SharedPtr<DialogView> _nextDialog;
     bool _initVram = false;
     SharedPtr<View> _oldFocus = nullptr;
     Animator<int> _scrimAnimator;

arm9/source/core/EnableSharedFromThis.h

@@ -20,7 +20,7 @@ class EnableSharedFromThis : public EnableSharedFromThisBase
     template <class Y>
     friend class SharedPtr;
 
-protected:
+public:
     SharedPtr<T> SharedFromThis()
     {
         return __sharedFromThisWeakPtr.Lock();

arm9/source/core/SharedPtr.h

@@ -207,3 +207,10 @@ private:
         }
     }
 };
+
+#define SHARED_ONLY(className) \
+    friend class MakeSharedRefCount<className>; \
+public: \
+    static SharedPtr<className> CreateShared(auto&&... args) \
+    { return SharedPtr<className>::MakeShared(std::forward<decltype(args)>(args)...); } \
+private:

arm9/source/core/math/fixed.h

@@ -161,11 +161,27 @@ public:
         return FromRawValue(this->_value >> rhs);
     }
 
-    constexpr fix16 abs() const
+    constexpr fix16 Abs() const
     {
         return FromRawValue(std::abs(this->_value));
     }
 
+    constexpr fix16 Clamp(fix16 min, fix16 max) const
+    {
+        if (this->_value < min._value)
+        {
+            return min;
+        }
+        else if (this->_value > max._value)
+        {
+            return max;
+        }
+        else
+        {
+            return *this;
+        }
+    }
+
     template <u32 OtherFractionBits>
     constexpr fix32<FractionBits + OtherFractionBits> LongMul(const fix16<OtherFractionBits>& other) const
     {
@@ -265,21 +281,45 @@ public:
         return this->_value < other._value;
     }
 
+    template <typename TLhs>
+    constexpr friend bool operator<(TLhs lhs, const fix32& rhs)
+    {
+        return fix32(lhs)._value < rhs._value;
+    }
+
     constexpr bool operator<=(const fix32& other) const
     {
         return this->_value <= other._value;
     }
 
+    template <typename TLhs>
+    constexpr friend bool operator<=(TLhs lhs, const fix32& rhs)
+    {
+        return fix32(lhs)._value <= rhs._value;
+    }
+
     constexpr bool operator>(const fix32& other) const
     {
         return this->_value > other._value;
     }
 
+    template <typename TLhs>
+    constexpr friend bool operator>(TLhs lhs, const fix32& rhs)
+    {
+        return fix32(lhs)._value > rhs._value;
+    }
+
     constexpr bool operator>=(const fix32& other) const
     {
         return this->_value >= other._value;
     }
 
+    template <typename TLhs>
+    constexpr friend bool operator>=(TLhs lhs, const fix32& rhs)
+    {
+        return fix32(lhs)._value >= rhs._value;
+    }
+
     constexpr fix32 operator-() const
     {
         return FromRawValue(-this->_value);
@@ -337,6 +377,22 @@ public:
         return FromRawValue(std::abs(this->_value));
     }
 
+    constexpr fix32 Clamp(fix32 min, fix32 max) const
+    {
+        if (this->_value < min._value)
+        {
+            return min;
+        }
+        else if (this->_value > max._value)
+        {
+            return max;
+        }
+        else
+        {
+            return *this;
+        }
+    }
+
     template <u32 OtherFractionBits>
     constexpr fix64<FractionBits + OtherFractionBits> LongMul(const fix16<OtherFractionBits>& other) const
     {
@@ -354,6 +410,11 @@ public:
         return fix64<FractionBits>::FromRawValue((s64)this->_value * other);
     }
 
+    constexpr fix64<FractionBits> LongMul(double other) const
+    {
+        return LongMul(fix32(other));
+    }
+
     template <u32 OtherFractionBits>
     constexpr fix32 operator*(const fix16<OtherFractionBits>& other) const
     {
@@ -371,6 +432,11 @@ public:
         return FromRawValue(this->_value * other);
     }
 
+    constexpr fix32 operator*(double other) const
+    {
+        return fix32(LongMul(fix32(other)));
+    }
+
     constexpr friend fix32 operator*(int lhs, const fix32& rhs)
     {
         return FromRawValue(lhs * rhs.GetRawValue());

arm9/source/core/task/Task.cpp

@@ -1,9 +1,20 @@
 #include "common.h"
 #include "Task.h"
 
-void TaskBase::Execute()
+void TaskBase::RequestCancel()
 {
     u32 irqs = rtos_disableIrqs();
+    _cancelRequested = true;
+    if (_state == TaskState::NotStarted)
+    {
+        _state = TaskState::Canceled;
+        rtos_wakeupQueue(&_threadQueue);
+    }
+    rtos_restoreIrqs(irqs);
+}
+
+void TaskBase::Execute(u32 irqs)
+{
     if (_state == TaskState::NotStarted)
     {
         _state = TaskState::Running;
@@ -12,8 +23,10 @@ void TaskBase::Execute()
         SetFinalState(finalState);
     }
     else
+    {
         rtos_restoreIrqs(irqs);
     }
+}
 
 void TaskBase::SetFinalState(TaskState finalState)
 {

arm9/source/core/task/Task.h

@@ -3,14 +3,17 @@
 #include <memory>
 #include <libtwl/rtos/rtosIrq.h>
 #include <libtwl/rtos/rtosThread.h>
+#include "core/LinkedListLink.h"
 #include "TaskResult.h"
 
 class TaskBase
 {
 public:
+    LinkedListLink link;
+
     virtual ~TaskBase() { }
 
-    void Execute();
+    void Execute(u32 irqs);
 
     TaskState GetState() const { return _state; }
 
@@ -24,7 +27,7 @@ public:
     bool GetDestroyWhenComplete() const { return _destroyWhenComplete; }
     void SetDestroyWhenComplete() { _destroyWhenComplete = true; }
 
-    void RequestCancel() { _cancelRequested = true; }
+    void RequestCancel();
     bool IsCancelRequested() const { return _cancelRequested; }
 
 protected:

arm9/source/core/task/TaskQueue.cpp

@@ -1,23 +1,22 @@
 #include "common.h"
 #include "TaskQueue.h"
 
-void TaskQueueBase::ThreadMain(TaskBase** queue, u32 queueLength)
+void TaskQueueBase::ThreadMain()
 {
     while (true)
     {
         _idle = false;
-        u32 readPtr = _queueReadPtr;
+        while (true)
-        while (readPtr != _queueWritePtr)
         {
-            TaskBase* task = queue[readPtr];
+            u32 irqs = rtos_disableIrqs();
-            if (readPtr == queueLength - 1)
+            auto task = _taskList.GetHead();
-                readPtr = 0;
-            else
-                readPtr++;
-            _queueReadPtr = readPtr;
             if (!task)
-                continue;
+            {
-            task->Execute();
+                rtos_restoreIrqs(irqs);
+                break;
+            }
+            _taskList.Remove(task);
+            task->Execute(irqs);
             if (task->GetDestroyWhenComplete())
             {
                 // this will destroy the task

arm9/source/core/task/TaskQueue.h

@@ -4,6 +4,7 @@
 #include <libtwl/rtos/rtosEvent.h>
 #include <libtwl/rtos/rtosThread.h>
 #include "core/BitVector.h"
+#include "core/LinkedList.h"
 #include "Task.h"
 
 class TaskQueueBase;
@@ -11,26 +12,14 @@ class TaskQueueBase;
 class QueueTaskBase
 {
 public:
-    // forbid copies
-    QueueTaskBase(const QueueTaskBase&) = delete;
-    QueueTaskBase& operator=(const QueueTaskBase&) = delete;
-
-    // move assignment
-    QueueTaskBase& operator=(QueueTaskBase&& other)
-    {
-        _taskQueue = other._taskQueue;
-        _task = other._task;
-        other._taskQueue = nullptr;
-        other._task = nullptr;
-        return *this;
-    }
-
     ~QueueTaskBase()
     {
         // extra check here for optimizing out the dispose call after move assignment
         if (_task)
+        {
             Dispose();
         }
+    }
 
     void Dispose();
 
@@ -47,12 +36,10 @@ public:
 
 protected:
     TaskBase* _task;
+    TaskQueueBase* _taskQueue;
 
     QueueTaskBase(TaskBase* task, TaskQueueBase* taskQueue)
         : _task(task), _taskQueue(taskQueue) { }
-
-private:
-    TaskQueueBase* _taskQueue;
 };
 
 template <typename T>
@@ -62,6 +49,26 @@ public:
     QueueTask()
         : QueueTaskBase(nullptr, nullptr) { }
 
+    QueueTask(const QueueTask&) = delete;
+    QueueTask& operator=(const QueueTask&) = delete;
+
+    QueueTask(QueueTask&& other)
+        : QueueTaskBase(other._task, other._taskQueue)
+    {
+        other._task = nullptr;
+        other._taskQueue = nullptr;
+    }
+
+    QueueTask& operator=(QueueTask&& other)
+    {
+        Dispose();
+        _taskQueue = other._taskQueue;
+        _task = other._task;
+        other._taskQueue = nullptr;
+        other._task = nullptr;
+        return *this;
+    }
+
     QueueTask(Task<T>* task, TaskQueueBase* taskQueue)
         : QueueTaskBase(task, taskQueue) { }
 
@@ -91,12 +98,11 @@ public:
 
 protected:
     rtos_event_t _event;
-    vu32 _queueReadPtr = 0;
+    LinkedList<TaskBase, &TaskBase::link> _taskList;
-    vu32 _queueWritePtr = 0;
     volatile bool _endThreadWhenDone = false;
     volatile bool _idle = true;
 
-    void ThreadMain(TaskBase** queue, u32 queueLength);
+    void ThreadMain();
 
     TaskQueueBase()
     {
@@ -124,6 +130,10 @@ public:
         u32 irqs = rtos_disableIrqs();
         if (task->IsCompleted())
         {
+            if (task->link.prev != nullptr || task->link.next != nullptr)
+            {
+                _taskList.Remove(task);
+            }
             task->~TaskBase();
             u32 slot = ((u32)task - (u32)_taskPool) / ((MaxTaskSize + 3) & ~3);
             _poolOccupation.Set(slot, 0);
@@ -159,13 +169,12 @@ public:
 
     bool IsIdle() const
     {
-        return _queueReadPtr == _queueWritePtr && _idle;
+        return _taskList.GetHead() == nullptr && _idle;
     }
 
 private:
     u32 _taskPool[QueueLength][(MaxTaskSize + 3) / 4];
     BitVector<QueueLength> _poolOccupation;
-    TaskBase* _queue[QueueLength];
     rtos_thread_t _thread;
     bool _threadStarted = false;
 
@@ -191,12 +200,11 @@ private:
     [[gnu::noinline]]
     void Enqueue(TaskBase* task) override
     {
-        u32 writePtr = _queueWritePtr;
+        u32 irqs = rtos_disableIrqs();
-        _queue[writePtr] = task;
+        {
-        if (writePtr == QueueLength - 1)
+            _taskList.InsertTail(task);
-            _queueWritePtr = 0;
+        }
-        else
+        rtos_restoreIrqs(irqs);
-            _queueWritePtr = writePtr + 1;
         rtos_signalEvent(&_event);
     }
 
@@ -207,6 +215,6 @@ private:
 
     void ThreadMain()
     {
-        TaskQueueBase::ThreadMain(&_queue[0], QueueLength);
+        TaskQueueBase::ThreadMain();
     }
 };

arm9/source/gui/input/IKeyInputSource.h

@@ -2,10 +2,10 @@
 #include "InputKey.h"
 
 /// @brief Interface for a source of key input.
-class IInputSource
+class IKeyInputSource
 {
 public:
-    virtual ~IInputSource() { }
+    virtual ~IKeyInputSource() { }
 
     virtual InputKey Sample() const = 0;
 };

arm9/source/gui/input/ITouchInputSource.h

@@ -0,0 +1,14 @@
+#pragma once
+#include "core/math/Point.h"
+
+/// @brief Interface for a source of touch input.
+class ITouchInputSource
+{
+public:
+    virtual ~ITouchInputSource() { }
+
+    /// @brief Samples the touch input.
+    /// @param touchPosition When the pen is down, the current touch position.
+    /// @return \c true when the pen is down, or \c false otherwise.
+    virtual bool Sample(Point& touchPosition) const = 0;
+};

arm9/source/gui/input/InputKey.h

@@ -15,7 +15,9 @@ enum class InputKey : u16
     L         = 1 << 9,
     X         = 1 << 10,
     Y         = 1 << 11,
-    Debug     = 1 << 13
+    Debug     = 1 << 13,
+    Touch     = 1 << 14,
+    Lid       = 1 << 15
 };
 
 inline InputKey operator&(InputKey lhs, InputKey rhs)

arm9/source/gui/input/InputProvider.h

@@ -1,5 +1,5 @@
 #pragma once
-
+#include "core/math/Point.h"
 #include "InputKey.h"
 
 class InputProvider
@@ -14,6 +14,23 @@ public:
     /// @return \c true if any of the keys in the \p mask is being held, or \c false otherwise.
     bool Current(InputKey mask) const { return static_cast<bool>(_currentKeys & mask); }
 
+    /// @brief Returns the current touch point if the screen is being touched.
+    /// @param touchPoint The current touch point if the screen is being touched.
+    /// @return \c true if the screen is being touched, or \c false otherwise.
+    bool GetCurrentTouchPoint(Point& touchPoint)
+    {
+        if (Current(InputKey::Touch))
+        {
+            touchPoint = _currentTouchPoint;
+            return true;
+        }
+        else
+        {
+            touchPoint = Point(0, 0);
+            return false;
+        }
+    }
+
     /// @brief Returns a bitmask of the keys that went from unpressed to pressed in the latest update.
     /// @return A bitmask of the keys that went from unpressed to pressed in the latest update.
     InputKey GetTriggeredKeys() const
@@ -46,13 +63,16 @@ public:
         _currentKeys = InputKey::None;
         _triggeredKeys = InputKey::None;
         _releasedKeys = InputKey::None;
+        _currentTouchPoint = Point(0, 0);
     }
 
 protected:
     InputKey _currentKeys;
     InputKey _triggeredKeys;
     InputKey _releasedKeys;
+    Point _currentTouchPoint;
 
     InputProvider()
-        : _currentKeys(InputKey::None), _triggeredKeys(InputKey::None), _releasedKeys(InputKey::None) { }
+        : _currentKeys(InputKey::None), _triggeredKeys(InputKey::None), _releasedKeys(InputKey::None)
+        , _currentTouchPoint(0, 0) { }
 };

arm9/source/gui/input/InputRepeater.cpp

@@ -27,8 +27,10 @@ void InputRepeater::Update()
             }
         }
         else
+        {
             _state = State::Idle;
         }
+    }
     else if (_state == State::NextRepeat)
     {
         if (static_cast<bool>(curKeys & _repeatMask))
@@ -40,13 +42,24 @@ void InputRepeater::Update()
             }
         }
         else
+        {
             _state = State::Idle;
         }
+    }
 
     InputKey lastRepKeys = _currentKeys & _repeatMask;
     _currentKeys = curKeys | repKeys;
     _triggeredKeys = _inputProvider->GetTriggeredKeys() | repKeys;
     _releasedKeys = _inputProvider->GetReleasedKeys() | (lastRepKeys & (lastRepKeys ^ repKeys));
+    Point touchPoint;
+    if (_inputProvider->GetCurrentTouchPoint(touchPoint))
+    {
+        _currentTouchPoint = touchPoint;
+    }
+    else
+    {
+        _currentTouchPoint = Point(0, 0);
+    }
 }
 
 void InputRepeater::Reset()

arm9/source/gui/input/InputRepeater.h

@@ -7,7 +7,7 @@ class InputRepeater : public InputProvider
 public:
     InputRepeater(InputProvider* inputProvider, InputKey repeatMask, u16 firstRepeatDelay, u16 nextRepeatDelay)
         : _inputProvider(inputProvider), _state(State::Idle)
-        , _frameCounter(0), _repeatMask(repeatMask)
+        , _frameCounter(0), _repeatMask(repeatMask & ~InputKey::Touch)
         , _firstRepeatDelayFrames(firstRepeatDelay)
         , _nextRepeatDelayFrames(nextRepeatDelay) { }
 

arm9/source/gui/input/PadInputSource.h

@@ -1,17 +1,18 @@
 #pragma once
 #include "common.h"
 #include <nds/input.h>
-#include "IInputSource.h"
+#include "IKeyInputSource.h"
 #include "sharedMemory.h"
 
 /// @brief Input source from the physical DS buttons.
-class PadInputSource : public IInputSource
+class PadInputSource : public IKeyInputSource
 {
 public:
     InputKey Sample() const override
     {
         u16 arm9Mask = (~REG_KEYINPUT & 0x3FF);
-        u16 arm7Mask = (~SHARED_KEY_XY & 0xB);
+        u16 arm7Mask = (~SHARED_KEY_XY & 0xCB);
+        arm7Mask = (arm7Mask & 0xB) | ((arm7Mask & 0xC0) >> 2);
         return static_cast<InputKey>((arm9Mask | (arm7Mask << 10)));
     }
 };

arm9/source/gui/input/SampledInputProvider.cpp

@@ -7,16 +7,44 @@ void SampledInputProvider::Update()
     InputKey trig = InputKey::None;
     InputKey rel = InputKey::None;
 
+    Point touchPoint(0, 0);
+    int touchPointCount = 0;
     while (_inputBufferReadPtr != _inputBufferWritePtr)
     {
-        InputKey nextKeys = _inputBuffer[_inputBufferReadPtr];
+        InputKey nextKeys = _keyInputBuffer[_inputBufferReadPtr];
         trig |= (nextKeys ^ curKeys) & nextKeys;
         rel |= (nextKeys ^ curKeys) & curKeys;
         curKeys = nextKeys;
+        if ((nextKeys & InputKey::Touch) != InputKey::None)
+        {
+            touchPoint.x += _touchInputBuffer[_inputBufferReadPtr].x;
+            touchPoint.y += _touchInputBuffer[_inputBufferReadPtr].y;
+            touchPointCount++;
+        }
+        else
+        {
+            touchPoint = Point(0, 0);
+            touchPointCount = 0;
+        }
         _inputBufferReadPtr = (_inputBufferReadPtr + 1) & 3;
     }
 
     _triggeredKeys = trig;
     _releasedKeys = rel;
     _currentKeys = curKeys;
+    if (touchPointCount == 0)
+    {
+        if ((_triggeredKeys & InputKey::Touch) != InputKey::None ||
+            (_currentKeys & InputKey::Touch) != InputKey::None)
+        {
+            _releasedKeys = _releasedKeys | InputKey::Touch;
+        }
+        _triggeredKeys = _triggeredKeys & ~InputKey::Touch;
+        _currentKeys = _currentKeys & ~InputKey::Touch;
+    }
+    else
+    {
+        _currentTouchPoint.x = touchPoint.x / touchPointCount;
+        _currentTouchPoint.y = touchPoint.y / touchPointCount;
+    }
 }

arm9/source/gui/input/SampledInputProvider.h

@@ -1,20 +1,23 @@
 #pragma once
 #include "InputProvider.h"
-#include "IInputSource.h"
+#include "IKeyInputSource.h"
+#include "ITouchInputSource.h"
 
-/// @brief Input provider providing input from an \see IInputSource.
+/// @brief Input provider providing input from an \see IKeyInputSource.
 class SampledInputProvider : public InputProvider
 {
 public:
-    explicit SampledInputProvider(const IInputSource* inputSource)
+    explicit SampledInputProvider(const IKeyInputSource* keyInputSource, const ITouchInputSource* touchInputSource)
-        : _inputSource(inputSource), _inputBufferReadPtr(0), _inputBufferWritePtr(0) { }
+        : _keyInputSource(keyInputSource), _touchInputSource(touchInputSource)
+        , _inputBufferReadPtr(0), _inputBufferWritePtr(0) { }
 
     void Update() override;
 
     /// @brief Samples the input source.
     void Sample()
     {
-        _inputBuffer[_inputBufferWritePtr] = _inputSource->Sample();
+        _keyInputBuffer[_inputBufferWritePtr] = _keyInputSource->Sample();
+        _touchInputSource->Sample(_touchInputBuffer[_inputBufferWritePtr]);
         _inputBufferWritePtr = (_inputBufferWritePtr + 1) & 3;
     }
 
@@ -26,9 +29,11 @@ public:
     }
 
 private:
-    const IInputSource* _inputSource;
+    const IKeyInputSource* _keyInputSource;
+    const ITouchInputSource* _touchInputSource;
 
-    InputKey _inputBuffer[4];
+    InputKey _keyInputBuffer[4];
+    Point _touchInputBuffer[4];
     u8 _inputBufferReadPtr;
     u8 _inputBufferWritePtr;
 };

arm9/source/gui/input/TouchInputSource.h

@@ -0,0 +1,24 @@
+#pragma once
+#include "common.h"
+#include <nds/input.h>
+#include "ITouchInputSource.h"
+#include "sharedMemory.h"
+
+/// @brief Input source from the physical DS touch screen.
+class TouchInputSource : public ITouchInputSource
+{
+public:
+    bool Sample(Point& touchPosition) const override
+    {
+        if (SHARED_KEY_XY & (1 << 6))
+        {
+            touchPosition = Point(0, 0);
+            return false;
+        }
+        else
+        {
+            touchPosition = Point(SHARED_TOUCH_X, SHARED_TOUCH_Y);
+            return true;
+        }
+    }
+};

arm9/source/gui/views/Label2DView.h

@@ -3,15 +3,17 @@
 
 class Label2DView : public LabelView
 {
-public:
+    SHARED_ONLY(Label2DView)
-    Label2DView(u32 width, u32 height, u32 maxStringLength, const nft2_header_t* font)
-        : LabelView(width, height, maxStringLength, font, false) { }
 
+public:
     void InitVram(const VramContext& vramContext) override;
     void Draw(GraphicsContext& graphicsContext) override;
     void VBlank() override;
 
 private:
+    Label2DView(u32 width, u32 height, u32 maxStringLength, const nft2_header_t* font)
+        : LabelView(width, height, maxStringLength, font, false) { }
+
     void UpdateTileBuffer() override;
 
     bool _tileBufferUpdated = false;

arm9/source/gui/views/Label3DView.cpp

@@ -12,6 +12,11 @@ Label3DView::Label3DView(u32 width, u32 height, u32 maxStringLength, const nft2_
     : LabelView(width, height, maxStringLength, font, true)
     , _vblankTextureLoader(vblankTextureLoader) { }
 
+Label3DView::~Label3DView()
+{
+    _vblankTextureLoader->CancelLoad(_textureLoadRequest);
+}
+
 void Label3DView::InitVram(const VramContext& vramContext)
 {
     const auto texVramManager = vramContext.GetTexVramManager();

arm9/source/gui/views/Label3DView.h

@@ -4,14 +4,18 @@
 
 class alignas(32) Label3DView : public LabelView
 {
+    SHARED_ONLY(Label3DView)
+
 public:
-    Label3DView(u32 width, u32 height, u32 maxStringLength, const nft2_header_t* font,
+    ~Label3DView() override;
-        VBlankTextureLoader* vblankTextureLoader);
 
     void InitVram(const VramContext& vramContext) override;
     void Draw(GraphicsContext& graphicsContext) override;
 
 private:
+    Label3DView(u32 width, u32 height, u32 maxStringLength, const nft2_header_t* font,
+        VBlankTextureLoader* vblankTextureLoader);
+
     void UpdateTileBuffer() override;
 
     u32 _texVramOffset = 0;

arm9/source/gui/views/RecyclerView.cpp

@@ -4,7 +4,7 @@
 #include "gui/input/InputProvider.h"
 #include "RecyclerView.h"
 
-RecyclerView::RecyclerView(Private, int x, int y, int width, int height, Mode mode)
+RecyclerView::RecyclerView(int x, int y, int width, int height, Mode mode)
     : _width(width), _height(height), _mode(mode), _rows(0), _columns(0)
     , _viewPoolFreeCount(0), _viewPoolTotalCount(0)
     , _xOffset(0), _yOffset(0), _xPadding(0), _yPadding(0)
@@ -341,6 +341,117 @@ bool RecyclerView::HandleInput(const InputProvider& inputProvider, FocusManager&
     return View::HandleInput(inputProvider, focusManager);
 }
 
+void RecyclerView::HandlePenDown(const Point& touchPoint, FocusManager& focusManager)
+{
+    if (GetBounds().Contains(touchPoint))
+    {
+        _penDown = true;
+        _penDownPosition = touchPoint;
+        _hasScrollStarted = false;
+        _penDownScrollOffset = _scrollOffsetAnimator.GetValue();
+
+        for (u32 i = _viewPoolFreeCount; i < _viewPoolTotalCount; i++)
+        {
+            _viewPool[i].view->HandlePenDown(touchPoint, focusManager);
+        }
+    }
+}
+
+void RecyclerView::HandlePenMove(const Point& touchPoint, FocusManager& focusManager)
+{
+    if (!_penDown)
+    {
+        return;
+    }
+
+    if (!_hasScrollStarted)
+    {
+        for (u32 i = _viewPoolFreeCount; i < _viewPoolTotalCount; i++)
+        {
+            _viewPool[i].view->HandlePenMove(touchPoint, focusManager);
+            if (focusManager.GetCurrentFocus().GetPointer() == _viewPool[i].view.GetPointer())
+            {
+                SetSelectedItem(_viewPool[i].itemIdx);
+            }
+        }
+
+        int dx = touchPoint.x - _penDownPosition.x;
+        int dy = touchPoint.y - _penDownPosition.y;
+        if (dx * dx + dy * dy > 7 * 7)
+        {
+            bool shouldScrollStart = (_mode == Mode::HorizontalGrid || _mode == Mode::HorizontalList)
+                ? (std::abs(touchPoint.x - _penDownPosition.x) > std::abs(touchPoint.y - _penDownPosition.y))
+                : (std::abs(touchPoint.x - _penDownPosition.x) < std::abs(touchPoint.y - _penDownPosition.y));
+
+            if (shouldScrollStart)
+            {
+                _hasScrollStarted = true;
+            }
+            else
+            {
+                _penDown = false; //wrong direction drag, so cancel it
+            }
+
+            for (u32 i = _viewPoolFreeCount; i < _viewPoolTotalCount; i++)
+            {
+                _viewPool[i].view->HandlePenUp(Point(-1, -1), focusManager);
+            }
+        }
+    }
+    else
+    {
+        int newScrollOffset;
+        if (_mode == Mode::HorizontalGrid || _mode == Mode::HorizontalList)
+        {
+            newScrollOffset = _penDownScrollOffset + touchPoint.x - _penDownPosition.x;
+            if (-newScrollOffset < 0)
+            {
+                newScrollOffset = 0;
+                _penDownScrollOffset = 0;
+                _penDownPosition.x = touchPoint.x;
+            }
+            else if (newScrollOffset < GetMaxScrollOffset())
+            {
+                newScrollOffset = GetMaxScrollOffset();
+                _penDownScrollOffset = newScrollOffset;
+                _penDownPosition.x = touchPoint.x;
+            }
+        }
+        else
+        {
+            newScrollOffset = _penDownScrollOffset + touchPoint.y - _penDownPosition.y;
+            if (-newScrollOffset < 0)
+            {
+                newScrollOffset = 0;
+                _penDownScrollOffset = 0;
+                _penDownPosition.y = touchPoint.y;
+            }
+            else if (newScrollOffset < GetMaxScrollOffset())
+            {
+                newScrollOffset = GetMaxScrollOffset();
+                _penDownScrollOffset = newScrollOffset;
+                _penDownPosition.y = touchPoint.y;
+            }
+        }
+
+        SetScrollOffset(newScrollOffset, false);
+    }
+}
+
+void RecyclerView::HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager)
+{
+    for (u32 i = _viewPoolFreeCount; i < _viewPoolTotalCount; i++)
+    {
+        _viewPool[i].view->HandlePenUp(lastTouchPoint, focusManager);
+        if (focusManager.GetCurrentFocus().GetPointer() == _viewPool[i].view.GetPointer())
+        {
+            SetSelectedItem(_viewPool[i].itemIdx);
+        }
+    }
+
+    _penDown = false;
+}
+
 Point RecyclerView::GetItemPosition(int itemIdx)
 {
     int x = 0;

arm9/source/gui/views/RecyclerView.h

@@ -1,15 +1,14 @@
 #pragma once
 #include <memory>
-#include "core/EnableSharedFromThis.h"
 #include "View.h"
 #include "RecyclerAdapter.h"
 #include "gui/FocusManager.h"
 #include "animation/Animator.h"
 #include "RecyclerViewBase.h"
 
-class RecyclerView : public RecyclerViewBase, public EnableSharedFromThis<RecyclerView>
+class RecyclerView : public RecyclerViewBase
 {
-    struct Private { explicit Private() = default; };
+    SHARED_ONLY(RecyclerView)
 
 public:
     enum class Mode
@@ -24,13 +23,6 @@ public:
         VerticalGrid
     };
 
-    RecyclerView(Private, int x, int y, int width, int height, Mode mode);
-
-    static SharedPtr<RecyclerView> CreateShared(int x, int y, int width, int height, Mode mode)
-    {
-        return SharedPtr<RecyclerView>::MakeShared(Private(), x, y, width, height, mode);
-    }
-
     ~RecyclerView();
 
     void SetAdapter(SharedPtr<const RecyclerAdapter> adapter, int initialSelectedIndex = 0) override;
@@ -47,6 +39,9 @@ public:
     SharedPtr<View> MoveFocus(const SharedPtr<View>& currentFocus, FocusMoveDirection direction, View* source) override;
 
     bool HandleInput(const InputProvider& inputProvider, FocusManager& focusManager) override;
+    void HandlePenDown(const Point& touchPoint, FocusManager& focusManager) override;
+    void HandlePenMove(const Point& touchPoint, FocusManager& focusManager) override;
+    void HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager) override;
 
     void Focus(FocusManager& focusManager) override
     {
@@ -107,6 +102,12 @@ private:
     int _curRangeStart;
     int _curRangeLength;
     Animator<int> _scrollOffsetAnimator;
+    bool _penDown = false;
+    Point _penDownPosition = Point(0, 0);
+    bool _hasScrollStarted = false;
+    int _penDownScrollOffset = 0;
+
+    RecyclerView(int x, int y, int width, int height, Mode mode);
 
     void UpdatePosition(ViewPoolEntry& viewPoolEntry);
     ViewPoolEntry* GetViewPoolEntryByItemIndex(int itemIdx);

arm9/source/gui/views/View.h

@@ -3,6 +3,7 @@
 #include "core/math/Point.h"
 #include "core/math/Rectangle.h"
 #include "core/SharedPtr.h"
+#include "core/EnableSharedFromThis.h"
 #include "../FocusManager.h"
 #include "../FocusMoveDirection.h"
 
@@ -11,7 +12,7 @@ class VramContext;
 class InputProvider;
 
 /// @brief Base class for views.
-class View
+class View : public EnableSharedFromThis<View>
 {
 public:
     /// @brief Link used for views that contain other views.
@@ -58,6 +59,21 @@ public:
         return false;
     }
 
+    /// @brief Handles a pen down event.
+    /// @param touchPoint The touch point.
+    /// @param focusManager The focus manager.
+    virtual void HandlePenDown(const Point& touchPoint, FocusManager& focusManager) { }
+
+    /// @brief Handles a pen move event.
+    /// @param touchPoint The touch point.
+    /// @param focusManager The focus manager.
+    virtual void HandlePenMove(const Point& touchPoint, FocusManager& focusManager) { }
+
+    /// @brief Handles a pen up event.
+    /// @param lastTouchPoint The last touch point.
+    /// @param focusManager The focus manager.
+    virtual void HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager) { }
+
     /// @brief Gets the bounds of the view.
     /// @return The bounds of the view.
     virtual Rectangle GetBounds() const = 0;

arm9/source/gui/views/ViewContainer.cpp

@@ -0,0 +1,58 @@
+#include "common.h"
+#include "ViewContainer.h"
+
+void ViewContainer::InitVram(const VramContext& vramContext)
+{
+    for (auto& view : _children)
+    {
+        view.InitVram(vramContext);
+    }
+}
+
+void ViewContainer::Update()
+{
+    for (auto& view : _children)
+    {
+        view.Update();
+    }
+}
+
+void ViewContainer::Draw(GraphicsContext& graphicsContext)
+{
+    for (auto& view : _children)
+    {
+        view.Draw(graphicsContext);
+    }
+}
+
+void ViewContainer::VBlank()
+{
+    for (auto& view : _children)
+    {
+        view.VBlank();
+    }
+}
+
+void ViewContainer::HandlePenDown(const Point& touchPoint, FocusManager& focusManager)
+{
+    for (auto& view : _children)
+    {
+        view.HandlePenDown(touchPoint, focusManager);
+    }
+}
+
+void ViewContainer::HandlePenMove(const Point& touchPoint, FocusManager& focusManager)
+{
+    for (auto& view : _children)
+    {
+        view.HandlePenMove(touchPoint, focusManager);
+    }
+}
+
+void ViewContainer::HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager)
+{
+    for (auto& view : _children)
+    {
+        view.HandlePenUp(lastTouchPoint, focusManager);
+    }
+}

arm9/source/gui/views/ViewContainer.h

@@ -6,37 +6,13 @@
 class ViewContainer : public View
 {
 public:
-    void InitVram(const VramContext& vramContext) override
+    void InitVram(const VramContext& vramContext) override;
-    {
+    void Update() override;
-        for (auto& view : _children)
+    void Draw(GraphicsContext& graphicsContext) override;
-        {
+    void VBlank() override;
-            view.InitVram(vramContext);
+    void HandlePenDown(const Point& touchPoint, FocusManager& focusManager) override;
-        }
+    void HandlePenMove(const Point& touchPoint, FocusManager& focusManager) override;
-    }
+    void HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager) override;
-
-    void Update() override
-    {
-        for (auto& view : _children)
-        {
-            view.Update();
-        }
-    }
-
-    void Draw(GraphicsContext& graphicsContext) override
-    {
-        for (auto& view : _children)
-        {
-            view.Draw(graphicsContext);
-        }
-    }
-
-    void VBlank() override
-    {
-        for (auto& view : _children)
-        {
-            view.VBlank();
-        }
-    }
 
 protected:
     /// @brief Adds a child to the head of the list.
@@ -55,6 +31,14 @@ protected:
         view->SetParent(this);
     }
 
+    /// @brief Removes a child from the list.
+    /// @param view The child to remove.
+    void RemoveChild(View* view)
+    {
+        _children.Remove(view);
+        view->SetParent(nullptr);
+    }
+
 private:
     LinkedList<View, &View::listLink> _children;
 };

arm9/source/romBrowser/DisplayMode/BannerListFileRecyclerAdapter.cpp

@@ -3,6 +3,7 @@
 #include "core/task/TaskQueue.h"
 #include "../views/BannerListItemView.h"
 #include "../Theme/IRomBrowserViewFactory.h"
+#include "romBrowser/viewModels/RomBrowserItemViewModel.h"
 #include "BannerListFileRecyclerAdapter.h"
 
 void BannerListFileRecyclerAdapter::GetViewSize(int& width, int& height) const
@@ -13,7 +14,8 @@ void BannerListFileRecyclerAdapter::GetViewSize(int& width, int& height) const
 
 SharedPtr<View> BannerListFileRecyclerAdapter::CreateView() const
 {
-    return _romBrowserViewFactory->CreateBannerListItemView(_vblankTextureLoader);
+    return _romBrowserViewFactory->CreateBannerListItemView(
+        std::make_unique<RomBrowserItemViewModel>(_romBrowserController), _vblankTextureLoader);
 }
 
 void BannerListFileRecyclerAdapter::BindView(SharedPtr<View> view, int index) const
@@ -27,6 +29,7 @@ TaskResult<void> BannerListFileRecyclerAdapter::BindView(SharedPtr<View> view, i
     const InternalFileInfo* internalFileInfo, const vu8& cancelRequested) const
 {
     auto listItemView = static_cast<BannerListItemView*>(view.GetPointer());
+    listItemView->GetViewModel().SetIndex(index);
     const auto& fileInfo = _fileInfoManager->GetItem(index);
     bool fileNameAsTitle = true;
     if (internalFileInfo)
@@ -65,12 +68,20 @@ TaskResult<void> BannerListFileRecyclerAdapter::BindView(SharedPtr<View> view, i
     return TaskResult<void>::Completed();
 }
 
+void BannerListFileRecyclerAdapter::SetQueueTask(const SharedPtr<View>& view, QueueTask<void> queueTask) const
+{
+    auto listItemView = static_cast<BannerListItemView*>(view.GetPointer());
+    listItemView->GetViewModel().SetQueueTask(std::move(queueTask));
+}
+
 void BannerListFileRecyclerAdapter::ReleaseView(SharedPtr<View> view, int index) const
 {
     LOG_DEBUG("Releasing %d\n", index);
     auto listItemView = static_cast<BannerListItemView*>(view.GetPointer());
     listItemView->SetIcon(nullptr);
     listItemView->SetGameTitle(u"");
+    listItemView->GetViewModel().SetIndex(-1);
+    listItemView->GetViewModel().CancelQueueTask();
     _fileInfoManager->ReleaseFileInfo(index);
 }
 

arm9/source/romBrowser/DisplayMode/BannerListFileRecyclerAdapter.h

@@ -8,11 +8,11 @@ class IRomBrowserViewFactory;
 class BannerListFileRecyclerAdapter : public FileRecyclerAdapter
 {
 public:
-    BannerListFileRecyclerAdapter(FileInfoManager* fileInfoManager,
+    BannerListFileRecyclerAdapter(IRomBrowserController* romBrowserController, FileInfoManager* fileInfoManager,
         TaskQueueBase* taskQueue, const IThemeFileIconFactory* themeFileIconFactory,
         const IRomBrowserViewFactory* romBrowserViewFactory,
         VBlankTextureLoader* vblankTextureLoader)
-        : FileRecyclerAdapter(fileInfoManager, taskQueue, themeFileIconFactory)
+        : FileRecyclerAdapter(romBrowserController, fileInfoManager, taskQueue, themeFileIconFactory)
         , _romBrowserViewFactory(romBrowserViewFactory)
         , _vblankTextureLoader(vblankTextureLoader) { }
 
@@ -30,4 +30,5 @@ private:
 
     TaskResult<void> BindView(SharedPtr<View> view, int index,
         const InternalFileInfo* internalFileInfo, const vu8& cancelRequested) const override;
+    void SetQueueTask(const SharedPtr<View>& view, QueueTask<void> queueTask) const override;
 };

arm9/source/romBrowser/DisplayMode/CoverFlowFileRecyclerAdapter.cpp

@@ -15,13 +15,15 @@ void CoverFlowFileRecyclerAdapter::GetViewSize(int& width, int& height) const
 
 SharedPtr<View> CoverFlowFileRecyclerAdapter::CreateView() const
 {
-    return SharedPtr<CoverView>::MakeShared(_vblankTextureLoader);
+    return CoverView::CreateShared(
+        std::make_unique<RomBrowserItemViewModel>(_romBrowserController), _vblankTextureLoader);
 }
 
 TaskResult<void> CoverFlowFileRecyclerAdapter::BindView(SharedPtr<View> view, int index,
     const InternalFileInfo* internalFileInfo, const vu8& cancelRequested) const
 {
     auto coverView = static_cast<CoverView*>(view.GetPointer());
+    coverView->GetViewModel().SetIndex(index);
     auto cover = _fileInfoManager->GetFileCover(index);
     if (cancelRequested)
     {
@@ -39,11 +41,19 @@ TaskResult<void> CoverFlowFileRecyclerAdapter::BindView(SharedPtr<View> view, in
     return TaskResult<void>::Completed();
 }
 
+void CoverFlowFileRecyclerAdapter::SetQueueTask(const SharedPtr<View>& view, QueueTask<void> queueTask) const
+{
+    auto coverView = static_cast<CoverView*>(view.GetPointer());
+    coverView->GetViewModel().SetQueueTask(std::move(queueTask));
+}
+
 void CoverFlowFileRecyclerAdapter::ReleaseView(SharedPtr<View> view, int index) const
 {
     LOG_DEBUG("Releasing %d\n", index);
     auto coverView = static_cast<CoverView*>(view.GetPointer());
     coverView->ClearCover();
+    coverView->GetViewModel().SetIndex(-1);
+    coverView->GetViewModel().CancelQueueTask();
     _fileInfoManager->ReleaseFileInfo(index);
 }
 

arm9/source/romBrowser/DisplayMode/CoverFlowFileRecyclerAdapter.h

@@ -8,12 +8,12 @@ class ICoverRepository;
 class CoverFlowFileRecyclerAdapter : public FileRecyclerAdapter
 {
 public:
-    CoverFlowFileRecyclerAdapter(FileInfoManager* fileInfoManager,
+    CoverFlowFileRecyclerAdapter(IRomBrowserController* romBrowserController, FileInfoManager* fileInfoManager,
         TaskQueueBase* taskQueue, const IThemeFileIconFactory* themeFileIconFactory,
         const IRomBrowserViewFactory* romBrowserViewFactory,
         VBlankTextureLoader* vblankTextureLoader,
         const ICoverRepository* coverRepository)
-        : FileRecyclerAdapter(fileInfoManager, taskQueue, themeFileIconFactory)
+        : FileRecyclerAdapter(romBrowserController, fileInfoManager, taskQueue, themeFileIconFactory)
         , _romBrowserViewFactory(romBrowserViewFactory)
         , _vblankTextureLoader(vblankTextureLoader)
         , _coverRepository(coverRepository) { }
@@ -31,4 +31,5 @@ private:
 
     TaskResult<void> BindView(SharedPtr<View> view, int index,
         const InternalFileInfo* internalFileInfo, const vu8& cancelRequested) const override;
+    void SetQueueTask(const SharedPtr<View>& view, QueueTask<void> queueTask) const override;
 };

arm9/source/romBrowser/DisplayMode/IconGridFileRecyclerAdapter.cpp

@@ -3,6 +3,7 @@
 #include "core/task/TaskQueue.h"
 #include "../views/IconGridItemView.h"
 #include "../Theme/IRomBrowserViewFactory.h"
+#include "romBrowser/viewModels/RomBrowserItemViewModel.h"
 #include "IconGridFileRecyclerAdapter.h"
 
 void IconGridFileRecyclerAdapter::GetViewSize(int& width, int& height) const
@@ -13,7 +14,7 @@ void IconGridFileRecyclerAdapter::GetViewSize(int& width, int& height) const
 
 SharedPtr<View> IconGridFileRecyclerAdapter::CreateView() const
 {
-    return _romBrowserViewFactory->CreateIconGridItemView();
+    return _romBrowserViewFactory->CreateIconGridItemView(std::make_unique<RomBrowserItemViewModel>(_romBrowserController));
 }
 
 void IconGridFileRecyclerAdapter::BindView(SharedPtr<View> view, int index) const
@@ -27,6 +28,7 @@ TaskResult<void> IconGridFileRecyclerAdapter::BindView(SharedPtr<View> view, int
     const InternalFileInfo* internalFileInfo, const vu8& cancelRequested) const
 {
     auto iconGridItemView = static_cast<IconGridItemView*>(view.GetPointer());
+    iconGridItemView->GetViewModel().SetIndex(index);
     auto icon = internalFileInfo ? internalFileInfo->CreateGameIcon() : nullptr;
     if (!icon)
     {
@@ -54,11 +56,19 @@ TaskResult<void> IconGridFileRecyclerAdapter::BindView(SharedPtr<View> view, int
     return TaskResult<void>::Completed();
 }
 
+void IconGridFileRecyclerAdapter::SetQueueTask(const SharedPtr<View>& view, QueueTask<void> queueTask) const
+{
+    auto iconGridItemView = static_cast<IconGridItemView*>(view.GetPointer());
+    iconGridItemView->GetViewModel().SetQueueTask(std::move(queueTask));
+}
+
 void IconGridFileRecyclerAdapter::ReleaseView(SharedPtr<View> view, int index) const
 {
     LOG_DEBUG("Releasing %d\n", index);
     auto iconGridItemView = static_cast<IconGridItemView*>(view.GetPointer());
     iconGridItemView->SetIcon(nullptr);
+    iconGridItemView->GetViewModel().SetIndex(-1);
+    iconGridItemView->GetViewModel().CancelQueueTask();
     _fileInfoManager->ReleaseFileInfo(index);
 }
 

arm9/source/romBrowser/DisplayMode/IconGridFileRecyclerAdapter.h

@@ -7,10 +7,10 @@ class IRomBrowserViewFactory;
 class IconGridFileRecyclerAdapter : public FileRecyclerAdapter
 {
 public:
-    IconGridFileRecyclerAdapter(FileInfoManager* fileInfoManager,
+    IconGridFileRecyclerAdapter(IRomBrowserController* romBrowserController, FileInfoManager* fileInfoManager,
         TaskQueueBase* taskQueue, const IThemeFileIconFactory* themeFileIconFactory,
         const IRomBrowserViewFactory* romBrowserViewFactory)
-        : FileRecyclerAdapter(fileInfoManager, taskQueue, themeFileIconFactory)
+        : FileRecyclerAdapter(romBrowserController, fileInfoManager, taskQueue, themeFileIconFactory)
         , _romBrowserViewFactory(romBrowserViewFactory) { }
 
     void GetViewSize(int& width, int& height) const override;
@@ -26,4 +26,5 @@ private:
 
     TaskResult<void> BindView(SharedPtr<View> view, int index,
         const InternalFileInfo* internalFileInfo, const vu8& cancelRequested) const override;
+    void SetQueueTask(const SharedPtr<View>& view, QueueTask<void> queueTask) const override;
 };

arm9/source/romBrowser/DisplayMode/RomBrowserBannerListDisplayMode.h

@@ -10,7 +10,7 @@ public:
 
     bool IsVertical() const override { return true; }
 
-    std::unique_ptr<AppBarView> CreateAppBarView(const IRomBrowserViewFactory* romBrowserViewFactory,
+    SharedPtr<AppBarView> CreateAppBarView(const IRomBrowserViewFactory* romBrowserViewFactory,
         int startButtonCount, int endButtonCount) const override
     {
         return romBrowserViewFactory->CreateAppBarView(0, 0,
@@ -29,7 +29,7 @@ public:
         RomBrowserViewModel* viewModel, const IThemeFileIconFactory* themeFileIconFactory,
         const IRomBrowserViewFactory* romBrowserViewFactory, VBlankTextureLoader* vblankTextureLoader) const override
     {
-        return SharedPtr<BannerListFileRecyclerAdapter>::MakeShared(
+        return SharedPtr<BannerListFileRecyclerAdapter>::MakeShared(viewModel->GetRomBrowserController(),
             &viewModel->GetFileInfoManager(), viewModel->GetIoTaskQueue(), themeFileIconFactory,
             romBrowserViewFactory, vblankTextureLoader);
     }

arm9/source/romBrowser/DisplayMode/RomBrowserDisplayMode.h

@@ -14,7 +14,7 @@ class RomBrowserDisplayMode
 public:
     virtual bool IsVertical() const = 0;
     virtual bool ShowCoverOnTopScreen() const { return true; }
-    virtual std::unique_ptr<AppBarView> CreateAppBarView(const IRomBrowserViewFactory* romBrowserViewFactory,
+    virtual SharedPtr<AppBarView> CreateAppBarView(const IRomBrowserViewFactory* romBrowserViewFactory,
         int startButtonCount, int endButtonCount) const = 0;
     virtual SharedPtr<RecyclerViewBase> CreateRecyclerView(const IRomBrowserViewFactory* romBrowserViewFactory) const = 0;
     virtual SharedPtr<FileRecyclerAdapter> CreateRecyclerAdapter(

arm9/source/romBrowser/DisplayMode/RomBrowserHorizontalCoverFlowDisplayMode.h

@@ -9,7 +9,7 @@ public:
     bool IsVertical() const override { return false; }
     bool ShowCoverOnTopScreen() const override { return false; }
 
-    std::unique_ptr<AppBarView> CreateAppBarView(const IRomBrowserViewFactory* romBrowserViewFactory,
+    SharedPtr<AppBarView> CreateAppBarView(const IRomBrowserViewFactory* romBrowserViewFactory,
         int startButtonCount, int endButtonCount) const override
     {
         return romBrowserViewFactory->CreateAppBarView(0, 0,

arm9/source/romBrowser/DisplayMode/RomBrowserHorizontalIconGridDisplayMode.h

@@ -10,7 +10,7 @@ public:
 
     bool IsVertical() const override { return false; }
 
-    std::unique_ptr<AppBarView> CreateAppBarView(const IRomBrowserViewFactory* romBrowserViewFactory,
+    SharedPtr<AppBarView> CreateAppBarView(const IRomBrowserViewFactory* romBrowserViewFactory,
         int startButtonCount, int endButtonCount) const override
     {
         return romBrowserViewFactory->CreateAppBarView(0, 0,
@@ -29,7 +29,7 @@ public:
         RomBrowserViewModel* viewModel, const IThemeFileIconFactory* themeFileIconFactory,
         const IRomBrowserViewFactory* romBrowserViewFactory, VBlankTextureLoader* vblankTextureLoader) const override
     {
-        return SharedPtr<IconGridFileRecyclerAdapter>::MakeShared(
+        return SharedPtr<IconGridFileRecyclerAdapter>::MakeShared(viewModel->GetRomBrowserController(),
             &viewModel->GetFileInfoManager(), viewModel->GetIoTaskQueue(),
             themeFileIconFactory, romBrowserViewFactory);
     }

arm9/source/romBrowser/DisplayMode/RomBrowserVerticalIconGridDisplayMode.h

@@ -10,7 +10,7 @@ public:
 
     bool IsVertical() const override { return true; }
 
-    std::unique_ptr<AppBarView> CreateAppBarView(const IRomBrowserViewFactory* romBrowserViewFactory,
+    SharedPtr<AppBarView> CreateAppBarView(const IRomBrowserViewFactory* romBrowserViewFactory,
         int startButtonCount, int endButtonCount) const override
     {
         return romBrowserViewFactory->CreateAppBarView(0, 0,
@@ -29,7 +29,7 @@ public:
         RomBrowserViewModel* viewModel, const IThemeFileIconFactory* themeFileIconFactory,
         const IRomBrowserViewFactory* romBrowserViewFactory, VBlankTextureLoader* vblankTextureLoader) const override
     {
-        return SharedPtr<IconGridFileRecyclerAdapter>::MakeShared(
+        return SharedPtr<IconGridFileRecyclerAdapter>::MakeShared(viewModel->GetRomBrowserController(),
             &viewModel->GetFileInfoManager(), viewModel->GetIoTaskQueue(),
             themeFileIconFactory, romBrowserViewFactory);
     }

arm9/source/romBrowser/FileRecyclerAdapter.cpp

@@ -11,8 +11,14 @@ u32 FileRecyclerAdapter::GetItemCount() const
 void FileRecyclerAdapter::BindView(SharedPtr<View> view, int index) const
 {
     LOG_DEBUG("Binding %d\n", index);
-    _taskQueue->Enqueue([=, this] (const vu8& cancelRequested)
+    auto queueTask = _taskQueue->Enqueue([=, this] (const vu8& cancelRequested)
     {
+        if (cancelRequested)
+        {
+            LOG_DEBUG("Task to load %d was canceled\n", index);
+            return TaskResult<void>::Canceled();
+        }
+
         LOG_DEBUG("Started task to load %d\n", index);
         _fileInfoManager->LoadFileInfo(index);
         auto internalFileInfo = _fileInfoManager->GetInternalFileInfo(index);
@@ -23,4 +29,5 @@ void FileRecyclerAdapter::BindView(SharedPtr<View> view, int index) const
         }
         return BindView(view, index, internalFileInfo, cancelRequested);
     });
+    SetQueueTask(view, std::move(queueTask));
 }

arm9/source/romBrowser/FileRecyclerAdapter.h

@@ -7,6 +7,7 @@ class IVramManager;
 class InternalFileInfo;
 class IThemeFileIconFactory;
 class VramContext;
+class IRomBrowserController;
 
 class FileRecyclerAdapter : public RecyclerAdapter
 {
@@ -22,16 +23,18 @@ public:
     virtual void InitVram(const VramContext& vramContext) { }
 
 protected:
+    IRomBrowserController* _romBrowserController;
     FileInfoManager* _fileInfoManager;
     TaskQueueBase* _taskQueue;
     u32 _iconFrameCounter;
     const IThemeFileIconFactory* _themeFileIconFactory;
 
-    FileRecyclerAdapter(FileInfoManager* fileInfoManager, TaskQueueBase* taskQueue,
+    FileRecyclerAdapter(IRomBrowserController* romBrowserController, FileInfoManager* fileInfoManager,
-        const IThemeFileIconFactory* themeFileIconFactory)
+        TaskQueueBase* taskQueue, const IThemeFileIconFactory* themeFileIconFactory)
-        : _fileInfoManager(fileInfoManager), _taskQueue(taskQueue)
+        : _romBrowserController(romBrowserController), _fileInfoManager(fileInfoManager), _taskQueue(taskQueue)
         , _iconFrameCounter(0), _themeFileIconFactory(themeFileIconFactory) { }
 
     virtual TaskResult<void> BindView(SharedPtr<View> view, int index,
         const InternalFileInfo* internalFileInfo, const vu8& cancelRequested) const = 0;
+    virtual void SetQueueTask(const SharedPtr<View>& view, QueueTask<void> queueTask) const = 0;
 };

arm9/source/romBrowser/Theme/IRomBrowserViewFactory.h

@@ -12,24 +12,26 @@ class VBlankTextureLoader;
 class RomBrowserViewModel;
 class IThemeFileIconFactory;
 class FileRecyclerAdapter;
+class RomBrowserItemViewModel;
 
 class IRomBrowserViewFactory
 {
 public:
     virtual ~IRomBrowserViewFactory() = 0;
 
-    virtual SharedPtr<IconGridItemView> CreateIconGridItemView() const = 0;
+    virtual SharedPtr<IconGridItemView> CreateIconGridItemView(std::unique_ptr<RomBrowserItemViewModel> viewModel) const = 0;
     virtual IconGridItemView::VramToken UploadIconGridItemViewGraphics(
         const VramContext& vramContext) const { return IconGridItemView::VramToken(0); }
 
-    virtual SharedPtr<BannerListItemView> CreateBannerListItemView(VBlankTextureLoader* vblankTextureLoader) const = 0;
+    virtual SharedPtr<BannerListItemView> CreateBannerListItemView(std::unique_ptr<RomBrowserItemViewModel> viewModel,
+        VBlankTextureLoader* vblankTextureLoader) const = 0;
     virtual BannerListItemView::VramToken UploadBannerListItemViewGraphics(
         const VramContext& vramContext) const { return BannerListItemView::VramToken(0); }
 
-    virtual std::unique_ptr<AppBarView> CreateAppBarView(int x, int y, AppBarView::Orientation orientation,
+    virtual SharedPtr<AppBarView> CreateAppBarView(int x, int y, AppBarView::Orientation orientation,
         int startButtonCount, int endButtonCount) const = 0;
 
-    virtual std::unique_ptr<BannerView> CreateFileInfoView() const = 0;
+    virtual SharedPtr<BannerView> CreateFileInfoView() const = 0;
 
     virtual SharedPtr<RecyclerViewBase> CreateCoverFlowRecyclerView() const = 0;
 

arm9/source/romBrowser/Theme/Material/CarouselRecyclerView.cpp

@@ -10,6 +10,8 @@
 #include "romBrowser/FileType/FileCover.h"
 #include "core/math/SinTable.h"
 #include "carouselMask.h"
+#include "animation/Interpolator.h"
+#include "gui/input/InputProvider.h"
 #include "CarouselRecyclerView.h"
 
 #define COVER_SPACING           4
@@ -41,8 +43,10 @@ void CarouselRecyclerView::Update()
         return;
     }
 
-    int rangeStartIndex = GetSelectedItem() - 4;
+    _scrollAnimator.Update();
-    int rangeEndIndex = GetSelectedItem() + 1 + 4;
+
+    int rangeStartIndex = _scrollAnimator.GetValue().Int() - 4;
+    int rangeEndIndex = _scrollAnimator.GetValue().Int() + 1 + 4;
     rangeStartIndex = std::clamp(rangeStartIndex, 0, (int)_itemCount - 1);
     rangeEndIndex = std::clamp(rangeEndIndex, 0, (int)_itemCount);
 
@@ -66,8 +70,7 @@ void CarouselRecyclerView::Update()
 
     for (u32 i = _viewPoolFreeCount; i < _viewPool.size(); i++)
     {
-        _viewPoolEx[i].xPositionAnimator.Update();
+        UpdateItemPosition(i);
-        _viewPoolEx[i].widthAnimator.Update();
         _viewPool[i].view->Update();
     }
 }
@@ -76,8 +79,8 @@ void CarouselRecyclerView::Draw(GraphicsContext& graphicsContext)
 {
     for (u32 i = _viewPoolFreeCount; i < _viewPool.size(); i++)
     {
-        fix32<12> x = (_viewPoolEx[i].xPositionAnimator.GetValue() + 0.5).Int();
+        fix32<12> x = (_viewPoolEx[i].xPosition + 0.5).Int();
-        fix32<12> width = (_viewPoolEx[i].widthAnimator.GetValue() + 0.5).Int();
+        fix32<12> width = (_viewPoolEx[i].width + 0.5).Int();
         fix32<12> left = x;
         if (left < HORIZONTAL_PADDING)
         {
@@ -180,48 +183,179 @@ void CarouselRecyclerView::RenderRoundedCorners(GraphicsContext& graphicsContext
     Gx::End();
 }
 
-void CarouselRecyclerView::UpdateItemPosition(int viewPoolIndex, bool initial)
+bool CarouselRecyclerView::HandleInput(const InputProvider& inputProvider, FocusManager& focusManager)
 {
-    ViewPoolEntry* item = &_viewPool[viewPoolIndex];
+    if (_itemCount != 0 && inputProvider.Triggered(InputKey::L | InputKey::R))
-    ViewPoolEntryEx* itemEx = &_viewPoolEx[viewPoolIndex];
-    int selectedIndex = GetSelectedItem();
-    if (selectedIndex == -1)
     {
-        selectedIndex = 0;
+        int direction = inputProvider.Triggered(InputKey::L) ? -1 : 1;
+        int selected = std::clamp(_selectedItem->itemIdx + 10 * direction, 0, (int)_itemCount - 1);
+
+        focusManager.Unfocus();
+        SetSelectedItem(selected, false);
+        focusManager.Focus(_selectedItem->view);
+        return true;
     }
-    int itemIndex = item->itemIdx;
+
-    fix32<12> x;
+    return View::HandleInput(inputProvider, focusManager);
-    fix32<12> width;
-    if (itemIndex < selectedIndex)
-    {
-        x = SELECTED_COVER_X + (SMALL_COVER_WIDTH + COVER_SPACING) * (itemIndex - selectedIndex);
-        width = SMALL_COVER_WIDTH;
 }
-    else if (itemIndex == selectedIndex + 1)
+
+void CarouselRecyclerView::HandlePenDown(const Point& touchPoint, FocusManager& focusManager)
 {
-        x = NEXT_COVER_X;
+    if (GetBounds().Contains(touchPoint))
-        width = NEXT_COVER_WIDTH;
+    {
+        _penDown = true;
+        _penDownPosition = touchPoint;
+        _hasScrollStarted = false;
+        _penDownScrollOffset = _scrollAnimator.GetValue();
+
+        if (_itemCount > 0)
+        {
+            _selectedItem->view->HandlePenDown(touchPoint, focusManager);
         }
-    else if (itemIndex > selectedIndex + 1)
+        for (u32 i = _viewPoolFreeCount; i < _viewPool.size(); i++)
         {
-        x = NEXT_COVER_X + NEXT_COVER_WIDTH + COVER_SPACING
+            auto bounds = _viewPool[i].view->GetBounds();
-            + (SMALL_COVER_WIDTH + COVER_SPACING) * (itemIndex - selectedIndex - 2);
+            bounds = Rectangle(_viewPoolEx[i].xPosition.Int(), bounds.GetTop(), _viewPoolEx[i].width.Int(), bounds.GetHeight());
-        width = SMALL_COVER_WIDTH;
+            if (bounds.Contains(touchPoint))
+            {
+                _viewPool[i].view->HandlePenDown(touchPoint, focusManager);
+            }
+        }
+    }
+}
+
+void CarouselRecyclerView::HandlePenMove(const Point& touchPoint, FocusManager& focusManager)
+{
+    if (!_penDown)
+    {
+        return;
+    }
+
+    if (!_hasScrollStarted)
+    {
+        for (u32 i = _viewPoolFreeCount; i < _viewPool.size(); i++)
+        {
+            _viewPool[i].view->HandlePenMove(touchPoint, focusManager);
+            if (focusManager.GetCurrentFocus().GetPointer() == _viewPool[i].view.GetPointer())
+            {
+                SetSelectedItem(_viewPool[i].itemIdx, false);
+            }
+        }
+
+        int dx = touchPoint.x - _penDownPosition.x;
+        int dy = touchPoint.y - _penDownPosition.y;
+        if (dx * dx + dy * dy > 7 * 7)
+        {
+            bool shouldScrollStart = std::abs(touchPoint.x - _penDownPosition.x) > std::abs(touchPoint.y - _penDownPosition.y);
+            if (shouldScrollStart)
+            {
+                _hasScrollStarted = true;
             }
             else
             {
-        x = SELECTED_COVER_X;
+                _penDown = false; //wrong direction drag, so cancel it
-        width = SELECTED_COVER_WIDTH;
+            }
+
+            for (u32 i = _viewPoolFreeCount; i < _viewPool.size(); i++)
+            {
+                _viewPool[i].view->HandlePenUp(Point(-1, -1), focusManager);
+            }
+        }
+    }
+    else
+    {
+        fix32<12> newScrollOffset = _penDownScrollOffset + fix32<12>(_penDownPosition.x - touchPoint.x) * (2.5 / COVER_WIDTH);
+        if (newScrollOffset < 0)
+        {
+            newScrollOffset = 0;
+            _penDownScrollOffset = 0;
+            _penDownPosition.x = touchPoint.x;
+        }
+        else if (newScrollOffset > (int)_itemCount - 1)
+        {
+            newScrollOffset = (int)_itemCount - 1;
+            _penDownScrollOffset = newScrollOffset;
+            _penDownPosition.x = touchPoint.x;
+        }
+
+        _scrollAnimator = Animator<fix32<12>>(newScrollOffset);
+    }
+}
+
+void CarouselRecyclerView::HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager)
+{
+    if (_hasScrollStarted)
+    {
+        SetSelectedItem((_scrollAnimator.GetValue() + 0.5).Int(), false);
+        focusManager.Focus(_selectedItem->view);
+    }
+
+    for (u32 i = _viewPoolFreeCount; i < _viewPool.size(); i++)
+    {
+        _viewPool[i].view->HandlePenUp(lastTouchPoint, focusManager);
+        if (focusManager.GetCurrentFocus().GetPointer() == _viewPool[i].view.GetPointer())
+        {
+            SetSelectedItem(_viewPool[i].itemIdx, false);
+        }
+    }
+
+    _penDown = false;
+}
+
+void CarouselRecyclerView::SetSelectedItem(int itemIdx, bool initial)
+{
+    CoverFlowRecyclerViewBase::SetSelectedItem(itemIdx, initial);
+
+    if (itemIdx < 0 || itemIdx >= (int)_itemCount)
+    {
+        return;
     }
 
     if (initial)
     {
-        itemEx->xPositionAnimator = Animator(x);
+        _scrollAnimator = Animator<fix32<12>>(itemIdx);
-        itemEx->widthAnimator = Animator(width);
     }
     else
     {
-        itemEx->xPositionAnimator.Goto(x, md::sys::motion::duration::medium4, &md::sys::motion::easing::standard);
+        _scrollAnimator.Goto(itemIdx, md::sys::motion::duration::medium4, &md::sys::motion::easing::standard);
-        itemEx->widthAnimator.Goto(width, md::sys::motion::duration::medium4, &md::sys::motion::easing::standard);
     }
 }
+
+void CarouselRecyclerView::UpdateItemPosition(int viewPoolIndex)
+{
+    auto& item = _viewPool[viewPoolIndex];
+    auto& itemEx = _viewPoolEx[viewPoolIndex];
+    int itemIndex = item.itemIdx;
+    fix32<12> absOffsetFromCenter = (itemIndex - _scrollAnimator.GetValue()).Abs();
+    fix32<12> initialOffsetFromCenter = absOffsetFromCenter.Clamp(0, 1);
+    fix32<12> initialOffsetFromNext = (absOffsetFromCenter - 1).Clamp(0, 1);
+
+    fix32<12> x;
+    fix32<12> width;
+    if (itemIndex < _scrollAnimator.GetValue())
+    {
+        // everything before selected
+        x = SELECTED_COVER_X - (SMALL_COVER_WIDTH + COVER_SPACING) * absOffsetFromCenter;
+        width = Interpolator::InterpolateLinear<fix32<12>>(SELECTED_COVER_WIDTH, SMALL_COVER_WIDTH, initialOffsetFromCenter);
+    }
+    else if (initialOffsetFromCenter < 1)
+    {
+        // from selected to next
+        x = Interpolator::InterpolateLinear<fix32<12>>(SELECTED_COVER_X, NEXT_COVER_X, initialOffsetFromCenter);
+        width = Interpolator::InterpolateLinear<fix32<12>>(SELECTED_COVER_WIDTH, NEXT_COVER_WIDTH, initialOffsetFromCenter);
+    }
+    else
+    {
+        // everything after next
+        x = NEXT_COVER_X
+            + Interpolator::InterpolateLinear<fix32<12>>(0, NEXT_COVER_WIDTH + COVER_SPACING, initialOffsetFromNext);
+        if (absOffsetFromCenter - 2 > 0)
+        {
+            x = x + (SMALL_COVER_WIDTH + COVER_SPACING) * (absOffsetFromCenter - 2);
+        }
+        width = Interpolator::InterpolateLinear<fix32<12>>(NEXT_COVER_WIDTH, SMALL_COVER_WIDTH, initialOffsetFromNext);
+    }
+
+    itemEx.xPosition = x;
+    itemEx.width = width;
+}

arm9/source/romBrowser/Theme/Material/CarouselRecyclerView.h

@@ -7,38 +7,44 @@ class MaterialColorScheme;
 
 class CarouselRecyclerView : public CoverFlowRecyclerViewBase
 {
-    struct Private { explicit Private() = default; };
+    SHARED_ONLY(CarouselRecyclerView)
 
 public:
-    CarouselRecyclerView(Private, const MaterialColorScheme* materialColorScheme)
-        : _materialColorScheme(materialColorScheme) { }
-
-    static SharedPtr<CarouselRecyclerView> CreateShared(const MaterialColorScheme* materialColorScheme)
-    {
-        return SharedPtr<CarouselRecyclerView>::MakeShared(Private(), materialColorScheme);
-    }
-
     static void UploadGraphics(const VramContext& vramContext);
 
     void Update() override;
     void Draw(GraphicsContext &graphicsContext) override;
 
+    bool HandleInput(const InputProvider& inputProvider, FocusManager& focusManager) override;
+    void HandlePenDown(const Point& touchPoint, FocusManager& focusManager) override;
+    void HandlePenMove(const Point& touchPoint, FocusManager& focusManager) override;
+    void HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager) override;
+
 private:
     struct ViewPoolEntryEx
     {
-        Animator<fix32<12>> xPositionAnimator;
+        fix32<12> xPosition;
-        Animator<fix32<12>> widthAnimator;
+        fix32<12> width;
     };
 
     std::array<ViewPoolEntryEx, 10> _viewPoolEx;
     const MaterialColorScheme* _materialColorScheme;
+    Animator<fix32<12>> _scrollAnimator = Animator<fix32<12>>(0);
+    bool _penDown = false;
+    Point _penDownPosition = Point(0, 0);
+    bool _hasScrollStarted = false;
+    fix32<12> _penDownScrollOffset = 0;
 
     static u32 sMaskTextureVramOffset;
 
+    CarouselRecyclerView(const MaterialColorScheme* materialColorScheme)
+        : _materialColorScheme(materialColorScheme) { }
+
     void RenderCoverMask(GraphicsContext& graphicsContext, fix32<12> left, fix32<12> right) const;
     void RenderRoundedCorners(GraphicsContext& graphicsContext, fix32<12> x, fix32<12> width) const;
 
-    void UpdateItemPosition(int viewPoolIndex, bool initial) override;
+    void SetSelectedItem(int itemIdx, bool initial) override;
+    void UpdateItemPosition(int viewPoolIndex);
 
     void SwapViewPoolEntry(int indexA, int indexB) override
     {

arm9/source/romBrowser/Theme/Material/MaterialAppBarView.cpp

@@ -9,7 +9,7 @@ MaterialAppBarView::MaterialAppBarView(int x, int y, Orientation orientation,
 {
     for (int i = 0; i < _startButtonCount + _endButtonCount; i++)
     {
-        _buttons[i] = SharedPtr<IconButton2DView>::MakeShared(
+        _buttons[i] = IconButton2DView::CreateShared(
             IconButtonView::Type::Standard,
             IconButtonView::State::NoToggle,
             md::sys::color::inverseOnSurface,

arm9/source/romBrowser/Theme/Material/MaterialAppBarView.h

@@ -3,9 +3,12 @@
 
 class MaterialAppBarView : public AppBarView
 {
+    SHARED_ONLY(MaterialAppBarView)
+
 public:
+    void InitVram(const VramContext& vramContext) override;
+
+private:
     MaterialAppBarView(int x, int y, Orientation orientation,
         int startButtonCount, int endButtonCount, const MaterialColorScheme* materialColorScheme);
-
-    void InitVram(const VramContext& vramContext) override;
 };

arm9/source/romBrowser/Theme/Material/MaterialBannerListItemView.cpp

@@ -18,12 +18,12 @@
 #include "gui/views/Label2DView.h"
 #include "MaterialBannerListItemView.h"
 
-MaterialBannerListItemView::MaterialBannerListItemView(const MaterialColorScheme* materialColorScheme,
+MaterialBannerListItemView::MaterialBannerListItemView(std::unique_ptr<RomBrowserItemViewModel> viewModel,
-    const IFontRepository* fontRepository)
+    const MaterialColorScheme* materialColorScheme, const IFontRepository* fontRepository)
-    : BannerListItemView(
+    : BannerListItemView(std::move(viewModel),
-        std::make_unique<Label2DView>(160, 16, 50, fontRepository->GetFont(FontType::Medium10)),
+        Label2DView::CreateShared(160, 16, 50, fontRepository->GetFont(FontType::Medium10)),
-        std::make_unique<Label2DView>(160, 16, 50, fontRepository->GetFont(FontType::Regular10)),
+        Label2DView::CreateShared(160, 16, 50, fontRepository->GetFont(FontType::Regular10)),
-        std::make_unique<Label2DView>(160, 16, 50, fontRepository->GetFont(FontType::Regular10)))
+        Label2DView::CreateShared(160, 16, 50, fontRepository->GetFont(FontType::Regular10)))
     , _materialColorScheme(materialColorScheme) { }
 
 void MaterialBannerListItemView::Draw(GraphicsContext& graphicsContext)

arm9/source/romBrowser/Theme/Material/MaterialBannerListItemView.h

@@ -7,10 +7,9 @@ class IFontRepository;
 
 class MaterialBannerListItemView : public BannerListItemView
 {
-public:
+    SHARED_ONLY(MaterialBannerListItemView)
-    MaterialBannerListItemView(const MaterialColorScheme* materialColorScheme,
-        const IFontRepository* fontRepository);
 
+public:
     void Draw(GraphicsContext& graphicsContext) override;
 
     Rectangle GetBounds() const override
@@ -28,4 +27,7 @@ public:
 private:
     const MaterialColorScheme* _materialColorScheme;
     u32 _bgVramOffset;
+
+    MaterialBannerListItemView(std::unique_ptr<RomBrowserItemViewModel> viewModel,
+        const MaterialColorScheme* materialColorScheme, const IFontRepository* fontRepository);
 };

arm9/source/romBrowser/Theme/Material/MaterialCoverFlowFileRecyclerAdapter.cpp

@@ -15,13 +15,15 @@ void MaterialCoverFlowFileRecyclerAdapter::GetViewSize(int& width, int& height)
 
 SharedPtr<View> MaterialCoverFlowFileRecyclerAdapter::CreateView() const
 {
-    return SharedPtr<MaterialCoverView>::MakeShared(_vblankTextureLoader);
+    return MaterialCoverView::CreateShared(
+        std::make_unique<RomBrowserItemViewModel>(_romBrowserController), _vblankTextureLoader);
 }
 
 TaskResult<void> MaterialCoverFlowFileRecyclerAdapter::BindView(SharedPtr<View> view, int index,
     const InternalFileInfo* internalFileInfo, const vu8& cancelRequested) const
 {
     auto coverView = static_cast<MaterialCoverView*>(view.GetPointer());
+    coverView->GetViewModel().SetIndex(index);
     auto cover = _fileInfoManager->GetFileCover(index);
     if (cancelRequested)
     {
@@ -39,10 +41,18 @@ TaskResult<void> MaterialCoverFlowFileRecyclerAdapter::BindView(SharedPtr<View>
     return TaskResult<void>::Completed();
 }
 
+void MaterialCoverFlowFileRecyclerAdapter::SetQueueTask(const SharedPtr<View>& view, QueueTask<void> queueTask) const
+{
+    auto coverView = static_cast<MaterialCoverView*>(view.GetPointer());
+    coverView->GetViewModel().SetQueueTask(std::move(queueTask));
+}
+
 void MaterialCoverFlowFileRecyclerAdapter::ReleaseView(SharedPtr<View> view, int index) const
 {
     LOG_DEBUG("Releasing %d\n", index);
     auto coverView = static_cast<MaterialCoverView*>(view.GetPointer());
     coverView->ClearCover();
+    coverView->GetViewModel().SetIndex(-1);
+    coverView->GetViewModel().CancelQueueTask();
     _fileInfoManager->ReleaseFileInfo(index);
 }

arm9/source/romBrowser/Theme/Material/MaterialCoverFlowFileRecyclerAdapter.h

@@ -8,12 +8,12 @@ class ICoverRepository;
 class MaterialCoverFlowFileRecyclerAdapter : public FileRecyclerAdapter
 {
 public:
-    MaterialCoverFlowFileRecyclerAdapter(FileInfoManager* fileInfoManager,
+    MaterialCoverFlowFileRecyclerAdapter(IRomBrowserController* romBrowserController, FileInfoManager* fileInfoManager,
         TaskQueueBase* taskQueue, const IThemeFileIconFactory* themeFileIconFactory,
         const IRomBrowserViewFactory* romBrowserViewFactory,
         VBlankTextureLoader* vblankTextureLoader,
         const ICoverRepository* coverRepository)
-        : FileRecyclerAdapter(fileInfoManager, taskQueue, themeFileIconFactory)
+        : FileRecyclerAdapter(romBrowserController, fileInfoManager, taskQueue, themeFileIconFactory)
         , _romBrowserViewFactory(romBrowserViewFactory)
         , _vblankTextureLoader(vblankTextureLoader)
         , _coverRepository(coverRepository) { }
@@ -29,4 +29,5 @@ private:
 
     TaskResult<void> BindView(SharedPtr<View> view, int index,
         const InternalFileInfo* internalFileInfo, const vu8& cancelRequested) const override;
+    void SetQueueTask(const SharedPtr<View>& view, QueueTask<void> queueTask) const override;
 };

arm9/source/romBrowser/Theme/Material/MaterialCoverView.cpp

@@ -4,6 +4,7 @@
 #include "gui/Gx.h"
 #include "gui/materialDesign.h"
 #include "gui/GraphicsContext.h"
+#include "gui/input/InputProvider.h"
 #include "MaterialCoverView.h"
 
 void MaterialCoverView::InitVram(const VramContext& vramContext)
@@ -17,6 +18,11 @@ void MaterialCoverView::InitVram(const VramContext& vramContext)
     }
 }
 
+void MaterialCoverView::Update()
+{
+    _viewModel->DisposeQueueTaskWhenComplete();
+}
+
 void MaterialCoverView::Draw(GraphicsContext& graphicsContext)
 {
     if (_cover.Lock() && _textureLoadRequest.GetState() == VBlankTextureLoadRequestState::LoadComplete)
@@ -44,6 +50,27 @@ void MaterialCoverView::Draw(GraphicsContext& graphicsContext)
     }
 }
 
+bool MaterialCoverView::HandleInput(const InputProvider& inputProvider, FocusManager& focusManager)
+{
+    return _inputHandler.HandleInput(inputProvider, focusManager)
+        || View::HandleInput(inputProvider, focusManager);
+}
+
+void MaterialCoverView::HandlePenDown(const Point& touchPoint, FocusManager& focusManager)
+{
+    _inputHandler.HandlePenDown(touchPoint, focusManager);
+}
+
+void MaterialCoverView::HandlePenMove(const Point& touchPoint, FocusManager& focusManager)
+{
+    _inputHandler.HandlePenMove(touchPoint, focusManager);
+}
+
+void MaterialCoverView::HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager)
+{
+    _inputHandler.HandlePenUp(lastTouchPoint, focusManager);
+}
+
 void MaterialCoverView::UploadCoverGraphics()
 {
     if (auto cover = _cover.Lock())

arm9/source/romBrowser/Theme/Material/MaterialCoverView.h

@@ -3,13 +3,14 @@
 #include "gui/views/View.h"
 #include "romBrowser/FileType/FileCover.h"
 #include "gui/VBlankTextureLoader.h"
+#include "romBrowser/viewModels/RomBrowserItemViewModel.h"
+#include "romBrowser/views/RomBrowserItemInputHandler.h"
 
 class MaterialCoverView : public View
 {
-public:
+    SHARED_ONLY(MaterialCoverView)
-    explicit MaterialCoverView(VBlankTextureLoader* vblankTextureLoader)
-        : _vblankTextureLoader(vblankTextureLoader) { }
 
+public:
     ~MaterialCoverView() override
     {
         _vblankTextureLoader->CancelLoad(_textureLoadRequest);
@@ -17,11 +18,17 @@ public:
 
     void InitVram(const VramContext& vramContext) override;
 
+    void Update() override;
     void Draw(GraphicsContext& graphicsContext) override;
 
+    bool HandleInput(const InputProvider& inputProvider, FocusManager& focusManager) override;
+    void HandlePenDown(const Point& touchPoint, FocusManager& focusManager) override;
+    void HandlePenMove(const Point& touchPoint, FocusManager& focusManager) override;
+    void HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager) override;
+
     Rectangle GetBounds() const override
     {
-        return Rectangle(_position.x - (COVER_WIDTH / 2), _position.y - (COVER_HEIGHT / 2), COVER_WIDTH, COVER_HEIGHT);
+        return Rectangle(_position.x, _position.y, COVER_WIDTH, COVER_HEIGHT);
     }
 
     void SetCover(SharedPtr<FileCover> cover)
@@ -38,10 +45,21 @@ public:
 
     void UploadCoverGraphics();
 
+    RomBrowserItemViewModel& GetViewModel() const
+    {
+        return *_viewModel;
+    }
+
 private:
+    std::unique_ptr<RomBrowserItemViewModel> _viewModel;
     VBlankTextureLoader* _vblankTextureLoader;
     AtomicSharedPtr<FileCover> _cover;
     VBlankTextureLoadRequest _textureLoadRequest;
     u32 _texVramOffset = 0;
     u32 _plttVramOffset = 0;
+    RomBrowserItemInputHandler _inputHandler;
+
+    MaterialCoverView(std::unique_ptr<RomBrowserItemViewModel> viewModel, VBlankTextureLoader* vblankTextureLoader)
+        : _viewModel(std::move(viewModel)), _vblankTextureLoader(vblankTextureLoader)
+        , _inputHandler(this, _viewModel.get()) { }
 };

arm9/source/romBrowser/Theme/Material/MaterialFileInfoCardView.cpp

@@ -13,17 +13,17 @@
 
 MaterialFileInfoCardView::MaterialFileInfoCardView(const MaterialColorScheme* materialColorScheme,
     const IFontRepository* fontRepository)
-    : _firstLine(176, 16, 50, fontRepository->GetFont(FontType::Medium11))
+    : _firstLine(Label2DView::CreateShared(176, 16, 50, fontRepository->GetFont(FontType::Medium11)))
-    , _secondLine(176, 16, 50, fontRepository->GetFont(FontType::Regular10))
+    , _secondLine(Label2DView::CreateShared(176, 16, 50, fontRepository->GetFont(FontType::Regular10)))
-    , _thirdLine(176, 16, 50, fontRepository->GetFont(FontType::Regular10))
+    , _thirdLine(Label2DView::CreateShared(176, 16, 50, fontRepository->GetFont(FontType::Regular10)))
-    , _filenameLabelView(220, 16, 200, fontRepository->GetFont(FontType::Medium7_5))
+    , _filenameLabelView(Label2DView::CreateShared(220, 16, 200, fontRepository->GetFont(FontType::Medium7_5)))
     , _materialColorScheme(materialColorScheme)
 {
-    AddChildTail(&_firstLine);
+    AddChildTail(_firstLine.GetPointer());
-    AddChildTail(&_secondLine);
+    AddChildTail(_secondLine.GetPointer());
-    AddChildTail(&_thirdLine);
+    AddChildTail(_thirdLine.GetPointer());
-    _filenameLabelView.SetEllipsisStyle(LabelView::EllipsisStyle::Marquee);
+    _filenameLabelView->SetEllipsisStyle(LabelView::EllipsisStyle::Marquee);
-    AddChildTail(&_filenameLabelView);
+    AddChildTail(_filenameLabelView.GetPointer());
 }
 
 void MaterialFileInfoCardView::InitVram(const VramContext& vramContext)
@@ -41,10 +41,10 @@ void MaterialFileInfoCardView::InitVram(const VramContext& vramContext)
 void MaterialFileInfoCardView::Update()
 {
     BannerView::Update();
-    _firstLine.SetPosition(_position.x + 70, _position.y + 130 - 8);
+    _firstLine->SetPosition(_position.x + 70, _position.y + 130 - 8);
-    _secondLine.SetPosition(_position.x + 70, _position.y + 145 - 8);
+    _secondLine->SetPosition(_position.x + 70, _position.y + 145 - 8);
-    _thirdLine.SetPosition(_position.x + 70, _position.y + 159 - 8);
+    _thirdLine->SetPosition(_position.x + 70, _position.y + 159 - 8);
-    _filenameLabelView.SetPosition(_position.x + 18, _position.y + 168);
+    _filenameLabelView->SetPosition(_position.x + 18, _position.y + 168);
     if (_icon)
     {
         _icon->SetPosition(_position.x + 24, _position.y + 136 - 8);
@@ -54,14 +54,14 @@ void MaterialFileInfoCardView::Update()
 
 void MaterialFileInfoCardView::Draw(GraphicsContext& graphicsContext)
 {
-    _firstLine.SetBackgroundColor(_materialColorScheme->secondaryContainer);
+    _firstLine->SetBackgroundColor(_materialColorScheme->secondaryContainer);
-    _firstLine.SetForegroundColor(_materialColorScheme->onSecondaryContainer);
+    _firstLine->SetForegroundColor(_materialColorScheme->onSecondaryContainer);
-    _secondLine.SetBackgroundColor(_materialColorScheme->secondaryContainer);
+    _secondLine->SetBackgroundColor(_materialColorScheme->secondaryContainer);
-    _secondLine.SetForegroundColor(_materialColorScheme->onSecondaryContainer);
+    _secondLine->SetForegroundColor(_materialColorScheme->onSecondaryContainer);
-    _thirdLine.SetBackgroundColor(_materialColorScheme->secondaryContainer);
+    _thirdLine->SetBackgroundColor(_materialColorScheme->secondaryContainer);
-    _thirdLine.SetForegroundColor(_materialColorScheme->onSecondaryContainer);
+    _thirdLine->SetForegroundColor(_materialColorScheme->onSecondaryContainer);
-    _filenameLabelView.SetBackgroundColor(_materialColorScheme->secondaryContainer);
+    _filenameLabelView->SetBackgroundColor(_materialColorScheme->secondaryContainer);
-    _filenameLabelView.SetForegroundColor(_materialColorScheme->onSurfaceVariant);
+    _filenameLabelView->SetForegroundColor(_materialColorScheme->onSurfaceVariant);
 
     BannerView::Draw(graphicsContext);
 

arm9/source/romBrowser/Theme/Material/MaterialFileInfoCardView.h

@@ -9,55 +9,54 @@ class IFontRepository;
 
 class MaterialFileInfoCardView : public BannerView
 {
-public:
+    SHARED_ONLY(MaterialFileInfoCardView)
-    MaterialFileInfoCardView(const MaterialColorScheme* materialColorScheme,
-        const IFontRepository* fontRepository);
 
+public:
     void InitVram(const VramContext& vramContext) override;
     void Update() override;
     void Draw(GraphicsContext& graphicsContext) override;
 
     void SetFirstLineAsync(TaskQueueBase* taskQueue, const char* firstLine, bool ellipsis) override
     {
-        _firstLine.SetEllipsisStyle(ellipsis ? LabelView::EllipsisStyle::Ellipsis : LabelView::EllipsisStyle::None);
+        _firstLine->SetEllipsisStyle(ellipsis ? LabelView::EllipsisStyle::Ellipsis : LabelView::EllipsisStyle::None);
         if (taskQueue)
-            _firstLine.SetTextAsync(taskQueue, firstLine);
+            _firstLine->SetTextAsync(taskQueue, firstLine);
         else
-            _firstLine.SetText(firstLine);
+            _firstLine->SetText(firstLine);
     }
 
     void SetFirstLineAsync(TaskQueueBase* taskQueue, const char16_t* firstLine, u32 length, bool ellipsis) override
     {
-        _firstLine.SetEllipsisStyle(ellipsis ? LabelView::EllipsisStyle::Ellipsis : LabelView::EllipsisStyle::None);
+        _firstLine->SetEllipsisStyle(ellipsis ? LabelView::EllipsisStyle::Ellipsis : LabelView::EllipsisStyle::None);
         if (taskQueue)
-            _firstLine.SetTextAsync(taskQueue, firstLine, length);
+            _firstLine->SetTextAsync(taskQueue, firstLine, length);
         else
-            _firstLine.SetText(firstLine, length);
+            _firstLine->SetText(firstLine, length);
     }
 
     void SetSecondLineAsync(TaskQueueBase* taskQueue, const char16_t* secondLine, u32 length) override
     {
         if (taskQueue)
-            _secondLine.SetTextAsync(taskQueue, secondLine, length);
+            _secondLine->SetTextAsync(taskQueue, secondLine, length);
         else
-            _secondLine.SetText(secondLine, length);
+            _secondLine->SetText(secondLine, length);
     }
 
     void SetThirdLineAsync(TaskQueueBase* taskQueue, const char16_t* thirdLine, u32 length) override
     {
         if (taskQueue)
-            _thirdLine.SetTextAsync(taskQueue, thirdLine, length);
+            _thirdLine->SetTextAsync(taskQueue, thirdLine, length);
         else
-            _thirdLine.SetText(thirdLine, length);
+            _thirdLine->SetText(thirdLine, length);
     }
 
     void SetFileNameAsync(TaskQueueBase* taskQueue, const TCHAR* fileName, bool useAsTitle) override
     {
         BannerView::SetFileNameAsync(taskQueue, fileName, useAsTitle);
         if (taskQueue)
-            _filenameLabelView.SetTextAsync(taskQueue, fileName);
+            _filenameLabelView->SetTextAsync(taskQueue, fileName);
         else
-            _filenameLabelView.SetText(fileName);
+            _filenameLabelView->SetText(fileName);
     }
 
     Rectangle GetBounds() const override
@@ -66,10 +65,13 @@ public:
     }
 
 private:
-    Label2DView _firstLine;
+    SharedPtr<Label2DView> _firstLine;
-    Label2DView _secondLine;
+    SharedPtr<Label2DView> _secondLine;
-    Label2DView _thirdLine;
+    SharedPtr<Label2DView> _thirdLine;
-    Label2DView _filenameLabelView;
+    SharedPtr<Label2DView> _filenameLabelView;
     u32 _iconCellVramOffset;
     const MaterialColorScheme* _materialColorScheme;
+
+    MaterialFileInfoCardView(const MaterialColorScheme* materialColorScheme,
+        const IFontRepository* fontRepository);
 };

arm9/source/romBrowser/Theme/Material/MaterialIconGridItemView.cpp

@@ -20,7 +20,7 @@ void MaterialIconGridItemView::Draw(GraphicsContext& graphicsContext)
         return;
 
     auto backColor = _materialColorScheme->inverseOnSurface;
-    auto frontColor = _isFocused
+    auto frontColor = (_isFocused || _inputHandler.IsPenDown())
         ? _materialColorScheme->mainIconBg
         : _materialColorScheme->surfaceBright;
     u16 selectedIconCellPltt[16];

arm9/source/romBrowser/Theme/Material/MaterialIconGridItemView.h

@@ -5,10 +5,9 @@ class MaterialColorScheme;
 
 class MaterialIconGridItemView : public IconGridItemView
 {
-public:
+    SHARED_ONLY(MaterialIconGridItemView)
-    explicit MaterialIconGridItemView(const MaterialColorScheme* materialColorScheme)
-        : _materialColorScheme(materialColorScheme) { }
 
+public:
     void Draw(GraphicsContext& graphicsContext) override;
 
     Rectangle GetBounds() const override
@@ -26,4 +25,7 @@ public:
 private:
     const MaterialColorScheme* _materialColorScheme;
     u32 _bgVramOffset;
+
+    MaterialIconGridItemView(std::unique_ptr<RomBrowserItemViewModel> viewModel, const MaterialColorScheme* materialColorScheme)
+        : IconGridItemView(std::move(viewModel)), _materialColorScheme(materialColorScheme) { }
 };

arm9/source/romBrowser/Theme/Material/MaterialRomBrowserViewFactory.h

@@ -18,9 +18,9 @@ public:
         const IFontRepository* fontRepository)
         : _materialColorScheme(materialColorScheme), _fontRepository(fontRepository) { }
 
-    SharedPtr<IconGridItemView> CreateIconGridItemView() const override
+    SharedPtr<IconGridItemView> CreateIconGridItemView(std::unique_ptr<RomBrowserItemViewModel> viewModel) const override
     {
-        return SharedPtr<MaterialIconGridItemView>::MakeShared(_materialColorScheme);
+        return MaterialIconGridItemView::CreateShared(std::move(viewModel), _materialColorScheme);
     }
 
     IconGridItemView::VramToken UploadIconGridItemViewGraphics(
@@ -29,9 +29,10 @@ public:
         return MaterialIconGridItemView::UploadGraphics(vramContext);
     }
 
-    SharedPtr<BannerListItemView> CreateBannerListItemView(VBlankTextureLoader* vblankTextureLoader) const override
+    SharedPtr<BannerListItemView> CreateBannerListItemView(std::unique_ptr<RomBrowserItemViewModel> viewModel,
+        VBlankTextureLoader* vblankTextureLoader) const override
     {
-        return SharedPtr<MaterialBannerListItemView>::MakeShared(_materialColorScheme, _fontRepository);
+        return MaterialBannerListItemView::CreateShared(std::move(viewModel), _materialColorScheme, _fontRepository);
     }
 
     BannerListItemView::VramToken UploadBannerListItemViewGraphics(
@@ -40,15 +41,15 @@ public:
         return MaterialBannerListItemView::UploadGraphics(vramContext);
     }
 
-    std::unique_ptr<AppBarView> CreateAppBarView(int x, int y, AppBarView::Orientation orientation,
+    SharedPtr<AppBarView> CreateAppBarView(int x, int y, AppBarView::Orientation orientation,
         int startButtonCount, int endButtonCount) const override
     {
-        return std::make_unique<MaterialAppBarView>(x, y, orientation, startButtonCount, endButtonCount, _materialColorScheme);
+        return MaterialAppBarView::CreateShared(x, y, orientation, startButtonCount, endButtonCount, _materialColorScheme);
     }
 
-    std::unique_ptr<BannerView> CreateFileInfoView() const override
+    SharedPtr<BannerView> CreateFileInfoView() const override
     {
-        return std::make_unique<MaterialFileInfoCardView>(_materialColorScheme, _fontRepository);
+        return MaterialFileInfoCardView::CreateShared(_materialColorScheme, _fontRepository);
     }
 
     SharedPtr<RecyclerViewBase> CreateCoverFlowRecyclerView() const override
@@ -60,7 +61,7 @@ public:
         RomBrowserViewModel* viewModel, const IThemeFileIconFactory* themeFileIconFactory,
         VBlankTextureLoader* vblankTextureLoader) const override
     {
-        return SharedPtr<MaterialCoverFlowFileRecyclerAdapter>::MakeShared(
+        return SharedPtr<MaterialCoverFlowFileRecyclerAdapter>::MakeShared(viewModel->GetRomBrowserController(),
             &viewModel->GetFileInfoManager(), viewModel->GetIoTaskQueue(),
             themeFileIconFactory, this, vblankTextureLoader, &viewModel->GetCoverRepository());
     }

arm9/source/romBrowser/Theme/custom/CustomAppBarView.cpp

@@ -12,7 +12,7 @@ CustomAppBarView::CustomAppBarView(int x, int y, Orientation orientation,
 {
     for (int i = 0; i < _startButtonCount + _endButtonCount; i++)
     {
-        _buttons[i] = SharedPtr<IconButton3DView>::MakeShared(
+        _buttons[i] = IconButton3DView::CreateShared(
             IconButtonView::Type::Tonal,
             IconButtonView::State::NoToggle,
             md::sys::color::inverseOnSurface,

arm9/source/romBrowser/Theme/custom/CustomAppBarView.h

@@ -3,14 +3,16 @@
 
 class CustomAppBarView : public AppBarView
 {
-public:
+    SHARED_ONLY(CustomAppBarView)
-    CustomAppBarView(int x, int y, Orientation orientation,
-        int startButtonCount, int endButtonCount, const MaterialColorScheme* materialColorScheme,
-        u32 scrimTexVramOffset, u32 scrimPlttVramOffset);
 
+public:
     void Draw(GraphicsContext& graphicsContext) override;
 
 private:
     u32 _scrimTexVramOffset = 0;
     u32 _scrimPlttVramOffset = 0;
+
+    CustomAppBarView(int x, int y, Orientation orientation,
+        int startButtonCount, int endButtonCount, const MaterialColorScheme* materialColorScheme,
+        u32 scrimTexVramOffset, u32 scrimPlttVramOffset);
 };

arm9/source/romBrowser/Theme/custom/CustomBannerListItemView.cpp

@@ -31,16 +31,17 @@
 #define LINE_HEIGHT             16
 #define MAX_LINE_STRING_LENGTH  50
 
-CustomBannerListItemView::CustomBannerListItemView(const CustomThemeInfo* customThemeInfo,
+CustomBannerListItemView::CustomBannerListItemView(std::unique_ptr<RomBrowserItemViewModel> viewModel,
-    const MaterialColorScheme* materialColorScheme, const IFontRepository* fontRepository,
+    const CustomThemeInfo* customThemeInfo, const MaterialColorScheme* materialColorScheme,
-    u32 texVramOffset, u32 plttVramOffset, u32 selectedTexVramOffset, u32 selectedPlttVramOffset,
+    const IFontRepository* fontRepository, u32 texVramOffset, u32 plttVramOffset,
+    u32 selectedTexVramOffset, u32 selectedPlttVramOffset,
     VBlankTextureLoader* vblankTextureLoader)
-    : BannerListItemView(
+    : BannerListItemView(std::move(viewModel),
-        std::make_unique<Label3DView>(LINE_WIDTH, LINE_HEIGHT, MAX_LINE_STRING_LENGTH,
+        Label3DView::CreateShared(LINE_WIDTH, LINE_HEIGHT, MAX_LINE_STRING_LENGTH,
             fontRepository->GetFont(FontType::Medium10), vblankTextureLoader),
-        std::make_unique<Label3DView>(LINE_WIDTH, LINE_HEIGHT, MAX_LINE_STRING_LENGTH,
+        Label3DView::CreateShared(LINE_WIDTH, LINE_HEIGHT, MAX_LINE_STRING_LENGTH,
             fontRepository->GetFont(FontType::Regular10), vblankTextureLoader),
-        std::make_unique<Label3DView>(LINE_WIDTH, LINE_HEIGHT, MAX_LINE_STRING_LENGTH,
+        Label3DView::CreateShared(LINE_WIDTH, LINE_HEIGHT, MAX_LINE_STRING_LENGTH,
             fontRepository->GetFont(FontType::Regular10), vblankTextureLoader))
     , _customThemeInfo(customThemeInfo)
     , _materialColorScheme(materialColorScheme)

arm9/source/romBrowser/Theme/custom/CustomBannerListItemView.h

@@ -1,6 +1,6 @@
 #pragma once
 #include "gui/views/LabelView.h"
-#include "../../views/BannerListItemView.h"
+#include "romBrowser/views/BannerListItemView.h"
 
 class MaterialColorScheme;
 class IFontRepository;
@@ -8,11 +8,9 @@ class CustomThemeInfo;
 
 class CustomBannerListItemView : public BannerListItemView
 {
-public:
+    SHARED_ONLY(CustomBannerListItemView)
-    CustomBannerListItemView(const CustomThemeInfo* customThemeInfo, const MaterialColorScheme* materialColorScheme,
-        const IFontRepository* fontRepository, u32 texVramOffset, u32 plttVramOffset,
-        u32 selectedTexVramOffset, u32 selectedPlttVramOffset, VBlankTextureLoader* vblankTextureLoader);
 
+public:
     void Draw(GraphicsContext& graphicsContext) override;
 
     Rectangle GetBounds() const override
@@ -27,4 +25,9 @@ private:
     u32 _plttVramOffset = 0;
     u32 _selectedTexVramOffset = 0;
     u32 _selectedPlttVramOffset = 0;
+
+    CustomBannerListItemView(std::unique_ptr<RomBrowserItemViewModel> viewModel, const CustomThemeInfo* customThemeInfo,
+        const MaterialColorScheme* materialColorScheme, const IFontRepository* fontRepository,
+        u32 texVramOffset, u32 plttVramOffset, u32 selectedTexVramOffset, u32 selectedPlttVramOffset,
+        VBlankTextureLoader* vblankTextureLoader);
 };

arm9/source/romBrowser/Theme/custom/CustomFileInfoView.cpp

@@ -6,26 +6,30 @@
 #include "CustomFileInfoView.h"
 
 CustomFileInfoView::CustomFileInfoView(const CustomThemeInfo* customThemeInfo, const IFontRepository* fontRepository)
-    : _firstLine(customThemeInfo->topBannerTextLine0Info.GetWidth(), 16, 50, fontRepository->GetFont(FontType::Medium11))
+    : _firstLine(Label2DView::CreateShared(
-    , _secondLine(customThemeInfo->topBannerTextLine1Info.GetWidth(), 16, 50, fontRepository->GetFont(FontType::Regular10))
+        customThemeInfo->topBannerTextLine0Info.GetWidth(), 16, 50, fontRepository->GetFont(FontType::Medium11)))
-    , _thirdLine(customThemeInfo->topBannerTextLine2Info.GetWidth(), 16, 50, fontRepository->GetFont(FontType::Regular10))
+    , _secondLine(Label2DView::CreateShared(
-    , _filenameLabelView(customThemeInfo->topFileNameTextInfo.GetWidth(), 16, 256, fontRepository->GetFont(FontType::Medium7_5))
+        customThemeInfo->topBannerTextLine1Info.GetWidth(), 16, 50, fontRepository->GetFont(FontType::Regular10)))
+    , _thirdLine(Label2DView::CreateShared(
+        customThemeInfo->topBannerTextLine2Info.GetWidth(), 16, 50, fontRepository->GetFont(FontType::Regular10)))
+    , _filenameLabelView(Label2DView::CreateShared(
+        customThemeInfo->topFileNameTextInfo.GetWidth(), 16, 256, fontRepository->GetFont(FontType::Medium7_5)))
     , _customThemeInfo(customThemeInfo)
 {
-    AddChildTail(&_firstLine);
+    AddChildTail(_firstLine.GetPointer());
-    AddChildTail(&_secondLine);
+    AddChildTail(_secondLine.GetPointer());
-    AddChildTail(&_thirdLine);
+    AddChildTail(_thirdLine.GetPointer());
-    _filenameLabelView.SetEllipsisStyle(LabelView::EllipsisStyle::Marquee);
+    _filenameLabelView->SetEllipsisStyle(LabelView::EllipsisStyle::Marquee);
-    AddChildTail(&_filenameLabelView);
+    AddChildTail(_filenameLabelView.GetPointer());
 }
 
 void CustomFileInfoView::Update()
 {
     BannerView::Update();
-    _firstLine.SetPosition(_customThemeInfo->topBannerTextLine0Info.GetPosition());
+    _firstLine->SetPosition(_customThemeInfo->topBannerTextLine0Info.GetPosition());
-    _secondLine.SetPosition(_customThemeInfo->topBannerTextLine1Info.GetPosition());
+    _secondLine->SetPosition(_customThemeInfo->topBannerTextLine1Info.GetPosition());
-    _thirdLine.SetPosition(_customThemeInfo->topBannerTextLine2Info.GetPosition());
+    _thirdLine->SetPosition(_customThemeInfo->topBannerTextLine2Info.GetPosition());
-    _filenameLabelView.SetPosition(_customThemeInfo->topFileNameTextInfo.GetPosition());
+    _filenameLabelView->SetPosition(_customThemeInfo->topFileNameTextInfo.GetPosition());
     if (_icon)
     {
         _icon->SetPosition(_customThemeInfo->topIconInfo.GetPosition());
@@ -35,14 +39,14 @@ void CustomFileInfoView::Update()
 
 void CustomFileInfoView::Draw(GraphicsContext& graphicsContext)
 {
-    _firstLine.SetBackgroundColor(_customThemeInfo->topBannerTextLine0Info.GetBlendColor());
+    _firstLine->SetBackgroundColor(_customThemeInfo->topBannerTextLine0Info.GetBlendColor());
-    _firstLine.SetForegroundColor(_customThemeInfo->topBannerTextLine0Info.GetTextColor());
+    _firstLine->SetForegroundColor(_customThemeInfo->topBannerTextLine0Info.GetTextColor());
-    _secondLine.SetBackgroundColor(_customThemeInfo->topBannerTextLine1Info.GetBlendColor());
+    _secondLine->SetBackgroundColor(_customThemeInfo->topBannerTextLine1Info.GetBlendColor());
-    _secondLine.SetForegroundColor(_customThemeInfo->topBannerTextLine1Info.GetTextColor());
+    _secondLine->SetForegroundColor(_customThemeInfo->topBannerTextLine1Info.GetTextColor());
-    _thirdLine.SetBackgroundColor(_customThemeInfo->topBannerTextLine2Info.GetBlendColor());
+    _thirdLine->SetBackgroundColor(_customThemeInfo->topBannerTextLine2Info.GetBlendColor());
-    _thirdLine.SetForegroundColor(_customThemeInfo->topBannerTextLine2Info.GetTextColor());
+    _thirdLine->SetForegroundColor(_customThemeInfo->topBannerTextLine2Info.GetTextColor());
-    _filenameLabelView.SetBackgroundColor(_customThemeInfo->topFileNameTextInfo.GetBlendColor());
+    _filenameLabelView->SetBackgroundColor(_customThemeInfo->topFileNameTextInfo.GetBlendColor());
-    _filenameLabelView.SetForegroundColor(_customThemeInfo->topFileNameTextInfo.GetTextColor());
+    _filenameLabelView->SetForegroundColor(_customThemeInfo->topFileNameTextInfo.GetTextColor());
 
     BannerView::Draw(graphicsContext);
 

arm9/source/romBrowser/Theme/custom/CustomFileInfoView.h

@@ -9,53 +9,53 @@ class CustomThemeInfo;
 
 class CustomFileInfoView : public BannerView
 {
-public:
+    SHARED_ONLY(CustomFileInfoView)
-    CustomFileInfoView(const CustomThemeInfo* customThemeInfo, const IFontRepository* fontRepository);
 
+public:
     void Update() override;
     void Draw(GraphicsContext& graphicsContext) override;
 
     void SetFirstLineAsync(TaskQueueBase* taskQueue, const char* firstLine, bool ellipsis) override
     {
-        _firstLine.SetEllipsisStyle(ellipsis ? LabelView::EllipsisStyle::Ellipsis : LabelView::EllipsisStyle::None);
+        _firstLine->SetEllipsisStyle(ellipsis ? LabelView::EllipsisStyle::Ellipsis : LabelView::EllipsisStyle::None);
         if (taskQueue)
-            _firstLine.SetTextAsync(taskQueue, firstLine);
+            _firstLine->SetTextAsync(taskQueue, firstLine);
         else
-            _firstLine.SetText(firstLine);
+            _firstLine->SetText(firstLine);
     }
 
     void SetFirstLineAsync(TaskQueueBase* taskQueue, const char16_t* firstLine, u32 length, bool ellipsis) override
     {
-        _firstLine.SetEllipsisStyle(ellipsis ? LabelView::EllipsisStyle::Ellipsis : LabelView::EllipsisStyle::None);
+        _firstLine->SetEllipsisStyle(ellipsis ? LabelView::EllipsisStyle::Ellipsis : LabelView::EllipsisStyle::None);
         if (taskQueue)
-            _firstLine.SetTextAsync(taskQueue, firstLine, length);
+            _firstLine->SetTextAsync(taskQueue, firstLine, length);
         else
-            _firstLine.SetText(firstLine, length);
+            _firstLine->SetText(firstLine, length);
     }
 
     void SetSecondLineAsync(TaskQueueBase* taskQueue, const char16_t* secondLine, u32 length) override
     {
         if (taskQueue)
-            _secondLine.SetTextAsync(taskQueue, secondLine, length);
+            _secondLine->SetTextAsync(taskQueue, secondLine, length);
         else
-            _secondLine.SetText(secondLine, length);
+            _secondLine->SetText(secondLine, length);
     }
 
     void SetThirdLineAsync(TaskQueueBase* taskQueue, const char16_t* thirdLine, u32 length) override
     {
         if (taskQueue)
-            _thirdLine.SetTextAsync(taskQueue, thirdLine, length);
+            _thirdLine->SetTextAsync(taskQueue, thirdLine, length);
         else
-            _thirdLine.SetText(thirdLine, length);
+            _thirdLine->SetText(thirdLine, length);
     }
 
     void SetFileNameAsync(TaskQueueBase* taskQueue, const TCHAR* fileName, bool useAsTitle) override
     {
         BannerView::SetFileNameAsync(taskQueue, fileName, useAsTitle);
         if (taskQueue)
-            _filenameLabelView.SetTextAsync(taskQueue, fileName);
+            _filenameLabelView->SetTextAsync(taskQueue, fileName);
         else
-            _filenameLabelView.SetText(fileName);
+            _filenameLabelView->SetText(fileName);
     }
 
     Rectangle GetBounds() const override
@@ -64,9 +64,11 @@ public:
     }
 
 private:
-    Label2DView _firstLine;
+    SharedPtr<Label2DView> _firstLine;
-    Label2DView _secondLine;
+    SharedPtr<Label2DView> _secondLine;
-    Label2DView _thirdLine;
+    SharedPtr<Label2DView> _thirdLine;
-    Label2DView _filenameLabelView;
+    SharedPtr<Label2DView> _filenameLabelView;
     const CustomThemeInfo* _customThemeInfo;
+
+    CustomFileInfoView(const CustomThemeInfo* customThemeInfo, const IFontRepository* fontRepository);
 };

arm9/source/romBrowser/Theme/custom/CustomIconGridItemView.cpp

@@ -26,8 +26,8 @@ void CustomIconGridItemView::Draw(GraphicsContext& graphicsContext)
         false, false, false, GX_DEPTH_FUNC_LESS, false, 31, 0);
     Gx::Color(0x7FFF);
 
-    u32 tex = _isFocused ? _selectedTexVramOffset : _texVramOffset;
+    u32 tex = (_isFocused || _inputHandler.IsPenDown()) ? _selectedTexVramOffset : _texVramOffset;
-    u32 pltt = _isFocused ? _selectedPlttVramOffset : _plttVramOffset;
+    u32 pltt = (_isFocused || _inputHandler.IsPenDown()) ? _selectedPlttVramOffset : _plttVramOffset;
     Gx::TexImageParam(tex >> 3, false, false, false, false, GX_TEXSIZE_64,
         GX_TEXSIZE_64, GX_TEXFMT_A3I5, false, GX_TEXGEN_NONE);
     Gx::TexPlttBase(pltt >> 4);

arm9/source/romBrowser/Theme/custom/CustomIconGridItemView.h

@@ -5,12 +5,9 @@ class CustomThemeInfo;
 
 class CustomIconGridItemView : public IconGridItemView
 {
-public:
+    SHARED_ONLY(CustomIconGridItemView)
-    CustomIconGridItemView(const CustomThemeInfo* customThemeInfo, u32 texVramOffset, u32 plttVramOffset,
-        u32 selectedTexVramOffset, u32 selectedPlttVramOffset)
-        : _customThemeInfo(customThemeInfo), _texVramOffset(texVramOffset), _plttVramOffset(plttVramOffset)
-        , _selectedTexVramOffset(selectedTexVramOffset), _selectedPlttVramOffset(selectedPlttVramOffset) { }
 
+public:
     void Draw(GraphicsContext& graphicsContext) override;
 
     Rectangle GetBounds() const override
@@ -24,4 +21,9 @@ private:
     u32 _plttVramOffset;
     u32 _selectedTexVramOffset;
     u32 _selectedPlttVramOffset;
+
+    CustomIconGridItemView(std::unique_ptr<RomBrowserItemViewModel> viewModel, const CustomThemeInfo* customThemeInfo,
+        u32 texVramOffset, u32 plttVramOffset, u32 selectedTexVramOffset, u32 selectedPlttVramOffset)
+        : IconGridItemView(std::move(viewModel)), _customThemeInfo(customThemeInfo), _texVramOffset(texVramOffset), _plttVramOffset(plttVramOffset)
+        , _selectedTexVramOffset(selectedTexVramOffset), _selectedPlttVramOffset(selectedPlttVramOffset) { }
 };

arm9/source/romBrowser/Theme/custom/CustomRomBrowserViewFactory.h

@@ -21,15 +21,16 @@ public:
         const IFontRepository* fontRepository)
         : _customThemeInfo(customThemeInfo), _materialColorScheme(materialColorScheme), _fontRepository(fontRepository) { }
 
-    SharedPtr<IconGridItemView> CreateIconGridItemView() const override
+    SharedPtr<IconGridItemView> CreateIconGridItemView(std::unique_ptr<RomBrowserItemViewModel> viewModel) const override
     {
-        return SharedPtr<CustomIconGridItemView>::MakeShared(_customThemeInfo, _gridCellTexVramOffset, _gridCellPlttVramOffset,
+        return CustomIconGridItemView::CreateShared(std::move(viewModel), _customThemeInfo, _gridCellTexVramOffset, _gridCellPlttVramOffset,
             _gridCellSelectedTexVramOffset, _gridCellSelectedPlttVramOffset);
     }
 
-    SharedPtr<BannerListItemView> CreateBannerListItemView(VBlankTextureLoader* vblankTextureLoader) const override
+    SharedPtr<BannerListItemView> CreateBannerListItemView(std::unique_ptr<RomBrowserItemViewModel> viewModel,
+        VBlankTextureLoader* vblankTextureLoader) const override
     {
-        return SharedPtr<CustomBannerListItemView>::MakeShared(_customThemeInfo, _materialColorScheme, _fontRepository,
+        return CustomBannerListItemView::CreateShared(std::move(viewModel), _customThemeInfo, _materialColorScheme, _fontRepository,
             _bannerListCellTexVramOffset, _bannerListCellPlttVramOffset,
             _bannerListCellSelectedTexVramOffset, _bannerListCellSelectedPlttVramOffset, vblankTextureLoader);
     }
@@ -39,16 +40,16 @@ public:
         return BannerListItemView::VramToken(0);
     }
 
-    std::unique_ptr<AppBarView> CreateAppBarView(int x, int y, AppBarView::Orientation orientation,
+    SharedPtr<AppBarView> CreateAppBarView(int x, int y, AppBarView::Orientation orientation,
         int startButtonCount, int endButtonCount) const override
     {
-        return std::make_unique<CustomAppBarView>(x, y, orientation, startButtonCount, endButtonCount, _materialColorScheme,
+        return CustomAppBarView::CreateShared(x, y, orientation, startButtonCount, endButtonCount, _materialColorScheme,
             _scrimTexVramOffset, _scrimPlttVramOffset);
     }
 
-    std::unique_ptr<BannerView> CreateFileInfoView() const override
+    SharedPtr<BannerView> CreateFileInfoView() const override
     {
-        return std::make_unique<CustomFileInfoView>(_customThemeInfo, _fontRepository);
+        return CustomFileInfoView::CreateShared(_customThemeInfo, _fontRepository);
     }
 
     SharedPtr<RecyclerViewBase> CreateCoverFlowRecyclerView() const override
@@ -60,7 +61,7 @@ public:
         RomBrowserViewModel* viewModel, const IThemeFileIconFactory* themeFileIconFactory,
         VBlankTextureLoader* vblankTextureLoader) const override
     {
-        return SharedPtr<CoverFlowFileRecyclerAdapter>::MakeShared(
+        return SharedPtr<CoverFlowFileRecyclerAdapter>::MakeShared(viewModel->GetRomBrowserController(),
             &viewModel->GetFileInfoManager(), viewModel->GetIoTaskQueue(),
             themeFileIconFactory, this, vblankTextureLoader, &viewModel->GetCoverRepository());
     }

arm9/source/romBrowser/viewModels/CheatsViewModel.cpp

@@ -24,7 +24,7 @@ CheatsViewModel::CheatsViewModel(const FileInfo& romFileInfo, IRomBrowserControl
     });
 }
 
-void CheatsViewModel::ActivateSelectedItem()
+void CheatsViewModel::ActivateItem(int index)
 {
     if (_state != State::DisplayCheats)
     {
@@ -36,19 +36,19 @@ void CheatsViewModel::ActivateSelectedItem()
     u32 numberOfSubEntries = 0;
     auto subEntries = cheatCategory->GetSubEntries(numberOfSubEntries);
 
-    if (numberOfSubEntries == 0)
+    if (numberOfSubEntries == 0 || index < 0 || index >= (int)numberOfSubEntries)
     {
         // There is nothing to activate
         return;
     }
 
-    auto& entry = subEntries[_selectedItem];
+    auto& entry = subEntries[index];
     if (entry.IsCheatCategory())
     {
         // Category activated
         if (_categoryStackLevel + 1 != _categoryStack.size())
         {
-            _categoryStack[++_categoryStackLevel] = { &entry, (u32)_selectedItem };
+            _categoryStack[++_categoryStackLevel] = { &entry, (u32)index };
             _selectedItem = 0;
         }
     }

arm9/source/romBrowser/viewModels/CheatsViewModel.h

@@ -25,8 +25,8 @@ public:
 
     CheatsViewModel(const FileInfo& romFileInfo, IRomBrowserController* romBrowserController);
 
-    /// @brief Activates the selected cheat or category.
+    /// @brief Activates the cheat or category at the specified \p index.
-    void ActivateSelectedItem();
+    void ActivateItem(int index);
 
     /// @brief Navigates up in the cheat hierachy, or closes the cheats panel when at the root.
     /// @return \c true when navigation happened in the cheats tree, or \c false when the cheats panel was closed.
@@ -54,9 +54,9 @@ public:
     /// @param selectedItem The index of the selected item to set.
     void SetSelectedItem(int selectedItem) { _selectedItem = selectedItem; }
 
-    /// @brief Returns whether the category name should be displayed.
+    /// @brief Returns whether the current displayed category is a sub-category.
-    /// @return \c true when the category name should be displayed, or \c false otherwise.
+    /// @return \c true when the current displayed category is a sub-category, or \c false otherwise.
-    bool ShouldShowCategoryName() const
+    bool IsInSubCategory() const
     {
         return _categoryStackLevel > 0;
     }

arm9/source/romBrowser/viewModels/RomBrowserItemViewModel.cpp

@@ -0,0 +1,33 @@
+#include "common.h"
+#include "romBrowser/IRomBrowserController.h"
+#include "RomBrowserViewModel.h"
+#include "romBrowser/FileType/Nds/NdsFileType.h"
+#include "RomBrowserItemViewModel.h"
+
+void RomBrowserItemViewModel::Activate()
+{
+    if (_index >= 0)
+    {
+        const auto& item = _romBrowserController->GetRomBrowserViewModel()->GetFileInfoManager().GetItem(_index);
+        if (item.GetFileType()->GetClassification() == FileTypeClassification::Folder)
+        {
+            _romBrowserController->NavigateToPath(item.GetFileName());
+        }
+        else
+        {
+            _romBrowserController->LaunchFile(item);
+        }
+    }
+}
+
+void RomBrowserItemViewModel::ShowGameInfo()
+{
+    if (_index >= 0)
+    {
+        const auto& item = _romBrowserController->GetRomBrowserViewModel()->GetFileInfoManager().GetItem(_index);
+        if (item.GetFileType() == &NdsFileType::sInstance)
+        {
+            _romBrowserController->ShowGameInfo(item);
+        }
+    }
+}

arm9/source/romBrowser/viewModels/RomBrowserItemViewModel.h

@@ -0,0 +1,43 @@
+#pragma once
+#include "core/task/TaskQueue.h"
+
+class IRomBrowserController;
+
+class RomBrowserItemViewModel
+{
+public:
+    explicit RomBrowserItemViewModel(IRomBrowserController* romBrowserController)
+        : _romBrowserController(romBrowserController) { }
+
+    void Activate();
+    void ShowGameInfo();
+
+    void SetIndex(int index)
+    {
+        _index = index;
+    }
+
+    void SetQueueTask(QueueTask<void> queueTask)
+    {
+        _queueTask = std::move(queueTask);
+    }
+
+    void CancelQueueTask()
+    {
+        _queueTask.CancelTask();
+    }
+
+    void DisposeQueueTaskWhenComplete()
+    {
+        if (_queueTask.GetTask().IsCompleted())
+        {
+            _queueTask.Dispose();
+        }
+    }
+
+private:
+    int _index = -1;
+    QueueTask<void> _queueTask;
+
+    IRomBrowserController* _romBrowserController;
+};

arm9/source/romBrowser/viewModels/RomBrowserViewModel.cpp

@@ -40,29 +40,7 @@ RomBrowserViewModel::RomBrowserViewModel(IRomBrowserController* romBrowserContro
     _selectedItem = _fileInfoManager->GetItemIndex(initialSelectedFileName);
 }
 
-void RomBrowserViewModel::ItemActivated()
-{
-    const auto& item = _fileInfoManager->GetItem(_selectedItem);
-    if (item.GetFileType()->GetClassification() == FileTypeClassification::Folder)
-    {
-        _romBrowserController->NavigateToPath(item.GetFileName());
-    }
-    else
-    {
-        _romBrowserController->LaunchFile(item);
-    }
-}
-
 void RomBrowserViewModel::NavigateUp()
 {
     _romBrowserController->NavigateUp();
 }
-
-void RomBrowserViewModel::ShowGameInfo()
-{
-    const auto& item = _fileInfoManager->GetItem(_selectedItem);
-    if (item.GetFileType() == &NdsFileType::sInstance)
-    {
-        _romBrowserController->ShowGameInfo(item);
-    }
-}

arm9/source/romBrowser/viewModels/RomBrowserViewModel.h

@@ -13,6 +13,7 @@ class RomBrowserViewModel
 public:
     RomBrowserViewModel(IRomBrowserController* romBrowserController, const char* initialSelectedFileName = nullptr);
 
+    IRomBrowserController* GetRomBrowserController() const { return _romBrowserController; }
     FileInfoManager& GetFileInfoManager() const { return *_fileInfoManager; }
     TaskQueueBase* GetIoTaskQueue() const { return _romBrowserController->GetIoTaskQueue(); }
     TaskQueueBase* GetBgTaskQueue() const { return _romBrowserController->GetBgTaskQueue(); }
@@ -24,9 +25,7 @@ public:
     constexpr u32 GetIconFrameCounter() const { return _iconFrameCounter; }
     void SetIconFrameCounter(u32 iconFrameCounter) { _iconFrameCounter = iconFrameCounter; }
 
-    void ItemActivated();
     void NavigateUp();
-    void ShowGameInfo();
 
 private:
     IRomBrowserController* _romBrowserController;

arm9/source/romBrowser/views/BannerListItemView.cpp

@@ -1,21 +1,26 @@
 #include "common.h"
 #include "gui/IVramManager.h"
 #include "gui/GraphicsContext.h"
+#include "gui/input/InputProvider.h"
 #include "BannerListItemView.h"
 
-BannerListItemView::BannerListItemView(std::unique_ptr<LabelView> firstLine,
+BannerListItemView::BannerListItemView(std::unique_ptr<RomBrowserItemViewModel> viewModel,
-    std::unique_ptr<LabelView> secondLine, std::unique_ptr<LabelView> thirdLine)
+    SharedPtr<LabelView> firstLine, SharedPtr<LabelView> secondLine, SharedPtr<LabelView> thirdLine)
-    : _firstLine(std::move(firstLine))
+    : _viewModel(std::move(viewModel))
+    , _firstLine(std::move(firstLine))
     , _secondLine(std::move(secondLine))
     , _thirdLine(std::move(thirdLine))
+    , _inputHandler(this, _viewModel.get())
 {
-    AddChildTail(_firstLine.get());
+    AddChildTail(_firstLine.GetPointer());
-    AddChildTail(_secondLine.get());
+    AddChildTail(_secondLine.GetPointer());
-    AddChildTail(_thirdLine.get());
+    AddChildTail(_thirdLine.GetPointer());
 }
 
 void BannerListItemView::Update()
 {
+    _viewModel->DisposeQueueTaskWhenComplete();
+
     ViewContainer::Update();
 
     if (_icon)
@@ -23,3 +28,24 @@ void BannerListItemView::Update()
         _icon->Update();
     }
 }
+
+bool BannerListItemView::HandleInput(const InputProvider& inputProvider, FocusManager& focusManager)
+{
+    return _inputHandler.HandleInput(inputProvider, focusManager)
+        || View::HandleInput(inputProvider, focusManager);
+}
+
+void BannerListItemView::HandlePenDown(const Point& touchPoint, FocusManager& focusManager)
+{
+    _inputHandler.HandlePenDown(touchPoint, focusManager);
+}
+
+void BannerListItemView::HandlePenMove(const Point& touchPoint, FocusManager& focusManager)
+{
+    _inputHandler.HandlePenMove(touchPoint, focusManager);
+}
+
+void BannerListItemView::HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager)
+{
+    _inputHandler.HandlePenUp(lastTouchPoint, focusManager);
+}

arm9/source/romBrowser/views/BannerListItemView.h

@@ -2,6 +2,8 @@
 #include "BannerView.h"
 #include "gui/views/LabelView.h"
 #include "../FileType/FileIcon.h"
+#include "romBrowser/viewModels/RomBrowserItemViewModel.h"
+#include "RomBrowserItemInputHandler.h"
 
 class BannerListItemView : public BannerView
 {
@@ -19,11 +21,13 @@ public:
         constexpr u32 GetVramOffset() const { return _vramOffset; }
     };
 
-    BannerListItemView(std::unique_ptr<LabelView> firstLine,
-        std::unique_ptr<LabelView> secondLine, std::unique_ptr<LabelView> thirdLine);
-
     void Update() override;
 
+    bool HandleInput(const InputProvider& inputProvider, FocusManager& focusManager) override;
+    void HandlePenDown(const Point& touchPoint, FocusManager& focusManager) override;
+    void HandlePenMove(const Point& touchPoint, FocusManager& focusManager) override;
+    void HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager) override;
+
     virtual void SetGraphics(const VramToken& vramToken) { }
 
     void SetFirstLineAsync(TaskQueueBase* taskQueue, const char* firstLine, bool ellipsis) override
@@ -60,8 +64,18 @@ public:
             _thirdLine->SetText(thirdLine, length);
     }
 
+    RomBrowserItemViewModel& GetViewModel() const
+    {
+        return *_viewModel;
+    }
+
 protected:
-    std::unique_ptr<LabelView> _firstLine;
+    std::unique_ptr<RomBrowserItemViewModel> _viewModel;
-    std::unique_ptr<LabelView> _secondLine;
+    SharedPtr<LabelView> _firstLine;
-    std::unique_ptr<LabelView> _thirdLine;
+    SharedPtr<LabelView> _secondLine;
+    SharedPtr<LabelView> _thirdLine;
+    RomBrowserItemInputHandler _inputHandler;
+
+    BannerListItemView(std::unique_ptr<RomBrowserItemViewModel> viewModel, SharedPtr<LabelView> firstLine,
+        SharedPtr<LabelView> secondLine, SharedPtr<LabelView> thirdLine);
 };

arm9/source/romBrowser/views/BottomSheetView.cpp

@@ -0,0 +1,34 @@
+#include "common.h"
+#include "BottomSheetView.h"
+
+void BottomSheetView::HandlePenDown(const Point& touchPoint, FocusManager& focusManager)
+{
+    DialogView::HandlePenDown(touchPoint, focusManager);
+
+    if (!GetBounds().Contains(touchPoint))
+    {
+        _oobPenDown = true;
+    }
+}
+
+void BottomSheetView::HandlePenMove(const Point& touchPoint, FocusManager& focusManager)
+{
+    DialogView::HandlePenMove(touchPoint, focusManager);
+
+    if (GetBounds().Contains(touchPoint))
+    {
+        _oobPenDown = false;
+    }
+}
+
+void BottomSheetView::HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager)
+{
+    DialogView::HandlePenUp(lastTouchPoint, focusManager);
+
+    if (_oobPenDown && !GetBounds().Contains(lastTouchPoint))
+    {
+        Close();
+    }
+
+    _oobPenDown = false;
+}

arm9/source/romBrowser/views/BottomSheetView.h

@@ -5,6 +5,10 @@
 class BottomSheetView : public DialogView
 {
 public:
+    void HandlePenDown(const Point& touchPoint, FocusManager& focusManager) override;
+    void HandlePenMove(const Point& touchPoint, FocusManager& focusManager) override;
+    void HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager) override;
+
     Rectangle GetBounds() const override
     {
         return Rectangle(_position.x, _position.y, 256 - _position.x, 192 - _position.y);
@@ -16,4 +20,10 @@ public:
     }
 
     constexpr DialogType GetDialogType() const override { return DialogType::BottomSheet; }
+
+protected:
+    virtual void Close() = 0;
+
+private:
+    bool _oobPenDown = false;
 };

arm9/source/romBrowser/views/ChipView.cpp

@@ -40,13 +40,13 @@ void ChipView::Draw(GraphicsContext& graphicsContext)
             DirectPalette(chipPltt), _position.y, _position.y + 20);
         if (!_isFocused)
         {
-            _label.SetBackgroundColor(_materialColorScheme->secondaryContainer);
+            _label->SetBackgroundColor(_materialColorScheme->secondaryContainer);
-            _label.SetForegroundColor(_materialColorScheme->onSecondaryContainer);
+            _label->SetForegroundColor(_materialColorScheme->onSecondaryContainer);
         }
         else
         {
-            _label.SetBackgroundColor(fgColor);
+            _label->SetBackgroundColor(fgColor);
-            _label.SetForegroundColor(_materialColorScheme->onSecondaryContainer);
+            _label->SetForegroundColor(_materialColorScheme->onSecondaryContainer);
         }
     }
     else
@@ -70,13 +70,13 @@ void ChipView::Draw(GraphicsContext& graphicsContext)
 
         if (!_isFocused)
         {
-            _label.SetBackgroundColor(_materialColorScheme->GetColor(_backgroundColor));
+            _label->SetBackgroundColor(_materialColorScheme->GetColor(_backgroundColor));
-            _label.SetForegroundColor(_materialColorScheme->onSurfaceVariant);
+            _label->SetForegroundColor(_materialColorScheme->onSurfaceVariant);
         }
         else
         {
-            _label.SetBackgroundColor(fgColor);
+            _label->SetBackgroundColor(fgColor);
-            _label.SetForegroundColor(_materialColorScheme->onSurfaceVariant);
+            _label->SetForegroundColor(_materialColorScheme->onSurfaceVariant);
         }
     }
 
@@ -97,8 +97,8 @@ void ChipView::Draw(GraphicsContext& graphicsContext)
 
     DrawIcon(graphicsContext, fgColor);
 
-    _label.SetPosition(_position.x + (_iconVramOffset == 0xFFFFFFFF ? 10 : 22), _position.y + 3);
+    _label->SetPosition(_position.x + (_iconVramOffset == 0xFFFFFFFF ? 10 : 22), _position.y + 3);
-    _label.Draw(graphicsContext);
+    _label->Draw(graphicsContext);
 }
 
 void ChipView::DrawIcon(GraphicsContext& graphicsContext, const Rgb<8, 8, 8>& fgColor)

arm9/source/romBrowser/views/ChipView.h

@@ -13,6 +13,8 @@ class IVramManager;
 
 class ChipView : public View
 {
+    SHARED_ONLY(ChipView)
+
 public:
     class VramToken
     {
@@ -27,22 +29,16 @@ public:
         constexpr u32 GetVramOffset() const { return _vramOffset; }
     };
 
-    explicit ChipView(md::sys::color backgroundColor, const MaterialColorScheme* materialColorScheme,
+    void InitVram(const VramContext& vramContext) override { _label->InitVram(vramContext); }
-        const IFontRepository* fontRepository)
-        : _vramOffset(0), _isSelected(false), _backgroundColor(backgroundColor)
-        , _label(CHIP_VIEW_MAX_WIDTH - 20, 16, 30, fontRepository->GetFont(FontType::Medium10))
-        , _iconVramOffset(0xFFFFFFFF), _materialColorScheme(materialColorScheme) { }
 
-    void InitVram(const VramContext& vramContext) override { _label.InitVram(vramContext); }
+    void SetText(const char16_t* text) { _label->SetText(text); }
-
+    void SetText(const char16_t* text, u32 length) { _label->SetText(text, length); }
-    void SetText(const char16_t* text) { _label.SetText(text); }
+    QueueTask<void> SetTextAsync(TaskQueueBase* taskQueue, const char16_t* text) { return _label->SetTextAsync(taskQueue, text); }
-    void SetText(const char16_t* text, u32 length) { _label.SetText(text, length); }
+    QueueTask<void> SetTextAsync(TaskQueueBase* taskQueue, const char16_t* text, u32 length) { return _label->SetTextAsync(taskQueue, text, length); }
-    QueueTask<void> SetTextAsync(TaskQueueBase* taskQueue, const char16_t* text) { return _label.SetTextAsync(taskQueue, text); }
-    QueueTask<void> SetTextAsync(TaskQueueBase* taskQueue, const char16_t* text, u32 length) { return _label.SetTextAsync(taskQueue, text, length); }
 
     void Draw(GraphicsContext& graphicsContext) override;
 
-    void VBlank() override { _label.VBlank(); }
+    void VBlank() override { _label->VBlank(); }
 
     void SetGraphics(const VramToken& vramToken)
     {
@@ -63,9 +59,13 @@ public:
     {
         int width;
         if (_iconVramOffset == 0xFFFFFFFF)
-            width = 10 + _label.GetStringWidth() + 10;
+        {
+            width = 10 + _label->GetStringWidth() + 10;
+        }
         else
-            width = 22 + _label.GetStringWidth() + 10;
+        {
+            width = 22 + _label->GetStringWidth() + 10;
+        }
         width = std::clamp(width, CHIP_VIEW_MIN_WIDTH, CHIP_VIEW_MAX_WIDTH);
         return width;
     }
@@ -83,9 +83,15 @@ private:
     u32 _vramOffset;
     bool _isSelected;
     md::sys::color _backgroundColor;
-    Label2DView _label;
+    SharedPtr<Label2DView> _label;
     u32 _iconVramOffset;
     const MaterialColorScheme* _materialColorScheme;
 
+    ChipView(md::sys::color backgroundColor, const MaterialColorScheme* materialColorScheme,
+        const IFontRepository* fontRepository)
+        : _vramOffset(0), _isSelected(false), _backgroundColor(backgroundColor)
+        , _label(Label2DView::CreateShared(CHIP_VIEW_MAX_WIDTH - 20, 16, 30, fontRepository->GetFont(FontType::Medium10)))
+        , _iconVramOffset(0xFFFFFFFF), _materialColorScheme(materialColorScheme) { }
+
     void DrawIcon(GraphicsContext& graphicsContext, const Rgb<8, 8, 8>& fgColor);
 };

arm9/source/romBrowser/views/CoverFlowRecyclerView.cpp

@@ -5,6 +5,7 @@
 #include "gui/Gx.h"
 #include "gui/GraphicsContext.h"
 #include "gui/materialDesign.h"
+#include "gui/input/InputProvider.h"
 #include "core/math/SinTable.h"
 #include "romBrowser/FileType/FileCover.h"
 #include "CoverFlowRecyclerView.h"
@@ -18,8 +19,10 @@ void CoverFlowRecyclerView::Update()
         return;
     }
 
-    int rangeStartIndex = GetSelectedItem() - 4;
+    _scrollAnimator.Update();
-    int rangeEndIndex = GetSelectedItem() + 1 + 4;
+
+    int rangeStartIndex = _scrollAnimator.GetValue().Int() - 4;
+    int rangeEndIndex = _scrollAnimator.GetValue().Int() + 1 + 4;
     rangeStartIndex = std::clamp(rangeStartIndex, 0, (int)_itemCount - 1);
     rangeEndIndex = std::clamp(rangeEndIndex, 0, (int)_itemCount);
 
@@ -43,10 +46,8 @@ void CoverFlowRecyclerView::Update()
 
     for (u32 i = _viewPoolFreeCount; i < _viewPool.size(); i++)
     {
-        _viewPoolEx[i].yAngleAnimator.Update();
+        UpdateItemPosition(i);
-        _viewPoolEx[i].xPositionAnimator.Update();
+        _viewPool[i].view->SetPosition(_viewPoolEx[i].xPosition.Int(), 32 + 80);
-        _viewPoolEx[i].zPositionAnimator.Update();
-        _viewPool[i].view->SetPosition(_viewPoolEx[i].xPositionAnimator.GetValue().Int(), 32 + 80);
         _viewPool[i].view->Update();
     }
 }
@@ -86,9 +87,9 @@ void CoverFlowRecyclerView::Draw(GraphicsContext& graphicsContext)
         graphicsContext.SetPolygonId(i);
         Gx::MtxPush();
         {
-            fix32<12> x = _viewPoolEx[i].xPositionAnimator.GetValue();
+            fix32<12> x = _viewPoolEx[i].xPosition;
-            u32 angle = _viewPoolEx[i].yAngleAnimator.GetValue();
+            u32 angle = _viewPoolEx[i].yAngle;
-            fix32<12> z = _viewPoolEx[i].zPositionAnimator.GetValue();
+            fix32<12> z = _viewPoolEx[i].zPosition;
             auto sinCos = gSinTable.SinCos(angle);
             mtx43_t rotMtx =
             {
@@ -110,47 +111,144 @@ void CoverFlowRecyclerView::Draw(GraphicsContext& graphicsContext)
     Gx::MtxMode(GX_MTX_MODE_POSITION_VECTOR);
 }
 
-void CoverFlowRecyclerView::UpdateItemPosition(int viewPoolIndex, bool initial)
+bool CoverFlowRecyclerView::HandleInput(const InputProvider& inputProvider, FocusManager& focusManager)
 {
-    ViewPoolEntry* item = &_viewPool[viewPoolIndex];
+    if (_itemCount != 0 && inputProvider.Triggered(InputKey::L | InputKey::R))
-    ViewPoolEntryEx* itemEx = &_viewPoolEx[viewPoolIndex];
-    int selectedIndex = GetSelectedItem();
-    if (selectedIndex == -1)
     {
-        selectedIndex = 0;
+        int direction = inputProvider.Triggered(InputKey::L) ? -1 : 1;
+        int selected = std::clamp(_selectedItem->itemIdx + 10 * direction, 0, (int)_itemCount - 1);
+
+        focusManager.Unfocus();
+        SetSelectedItem(selected, false);
+        focusManager.Focus(_selectedItem->view);
+        return true;
     }
-    int itemIndex = item->itemIdx;
+
-    fix32<12> x;
+    return View::HandleInput(inputProvider, focusManager);
-    fix32<12> z = 0;
-    u32 angle;
-    if (itemIndex < selectedIndex)
-    {
-        x = 256 / 2 - (COVER_HEIGHT / 4) + COVER_SPACING * (itemIndex - selectedIndex);
-        angle = std::clamp((selectedIndex - itemIndex) * 10 + 45, -90, 90) * (1 << 16) / 360;
-        z = -(selectedIndex - itemIndex) * 30 - 20;
 }
-    else if (itemIndex > selectedIndex)
+
+void CoverFlowRecyclerView::HandlePenDown(const Point& touchPoint, FocusManager& focusManager)
 {
-        x = 256 / 2 + (COVER_HEIGHT / 4) + COVER_SPACING * (itemIndex - selectedIndex);
+    if (GetBounds().Contains(touchPoint))
-        angle = std::clamp((selectedIndex - itemIndex) * 10 - 45, -90, 90) * (1 << 16) / 360;
+    {
-        z = (selectedIndex - itemIndex) * 30 - 20;
+        _penDown = true;
+        _penDownPosition = touchPoint;
+        _hasScrollStarted = false;
+        _penDownScrollOffset = _scrollAnimator.GetValue();
+
+        if (_itemCount > 0)
+        {
+            _selectedItem->view->HandlePenDown(touchPoint, focusManager);
+        }
+    }
+}
+
+void CoverFlowRecyclerView::HandlePenMove(const Point& touchPoint, FocusManager& focusManager)
+{
+    if (!_penDown)
+    {
+        return;
+    }
+
+    if (!_hasScrollStarted)
+    {
+        if (_itemCount > 0)
+        {
+            _selectedItem->view->HandlePenMove(touchPoint, focusManager);
+        }
+
+        int dx = touchPoint.x - _penDownPosition.x;
+        int dy = touchPoint.y - _penDownPosition.y;
+        if (dx * dx + dy * dy > 7 * 7)
+        {
+            bool shouldScrollStart = std::abs(touchPoint.x - _penDownPosition.x) > std::abs(touchPoint.y - _penDownPosition.y);
+            if (shouldScrollStart)
+            {
+                _hasScrollStarted = true;
             }
             else
             {
-        x = 256 / 2;
+                _penDown = false; //wrong direction drag, so cancel it
-        angle = 0;
+            }
+
+            if (_itemCount > 0)
+            {
+                _selectedItem->view->HandlePenUp(Point(-1, -1), focusManager);
+            }
+        }
+    }
+    else
+    {
+        fix32<12> newScrollOffset = _penDownScrollOffset + fix32<12>(_penDownPosition.x - touchPoint.x) * (2.5 / COVER_WIDTH);
+        if (newScrollOffset < 0)
+        {
+            newScrollOffset = 0;
+            _penDownScrollOffset = 0;
+            _penDownPosition.x = touchPoint.x;
+        }
+        else if (newScrollOffset > (int)_itemCount - 1)
+        {
+            newScrollOffset = (int)_itemCount - 1;
+            _penDownScrollOffset = newScrollOffset;
+            _penDownPosition.x = touchPoint.x;
+        }
+
+        _scrollAnimator = Animator<fix32<12>>(newScrollOffset);
+    }
+}
+
+void CoverFlowRecyclerView::HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager)
+{
+    if (_hasScrollStarted)
+    {
+        SetSelectedItem((_scrollAnimator.GetValue() + 0.5).Int(), false);
+    }
+
+    if (_itemCount > 0)
+    {
+        _selectedItem->view->HandlePenUp(lastTouchPoint, focusManager);
+        focusManager.Focus(_selectedItem->view);
+    }
+
+    _penDown = false;
+}
+
+void CoverFlowRecyclerView::SetSelectedItem(int itemIdx, bool initial)
+{
+    CoverFlowRecyclerViewBase::SetSelectedItem(itemIdx, initial);
+
+    if (itemIdx < 0 || itemIdx >= (int)_itemCount)
+    {
+        return;
     }
 
     if (initial)
     {
-        itemEx->yAngleAnimator = Animator<int>(angle);
+        _scrollAnimator = Animator<fix32<12>>(itemIdx);
-        itemEx->xPositionAnimator = Animator(x);
-        itemEx->zPositionAnimator = Animator(z);
     }
     else
     {
-        itemEx->yAngleAnimator.Goto(angle, md::sys::motion::duration::medium4, &md::sys::motion::easing::standard);
+        _scrollAnimator.Goto(itemIdx, md::sys::motion::duration::medium4, &md::sys::motion::easing::standard);
-        itemEx->xPositionAnimator.Goto(x, md::sys::motion::duration::medium4, &md::sys::motion::easing::standard);
-        itemEx->zPositionAnimator.Goto(z, md::sys::motion::duration::medium4, &md::sys::motion::easing::standard);
     }
 }
+
+void CoverFlowRecyclerView::UpdateItemPosition(int viewPoolIndex)
+{
+    auto& item = _viewPool[viewPoolIndex];
+    auto& itemEx = _viewPoolEx[viewPoolIndex];
+    int itemIndex = item.itemIdx;
+    fix32<12> absOffsetFromCenter = (itemIndex - _scrollAnimator.GetValue()).Abs();
+    fix32<12> initialOffsetFromCenter = absOffsetFromCenter.Clamp(0, 1);
+    fix32<12> x = (COVER_HEIGHT / 4) * initialOffsetFromCenter + COVER_SPACING * absOffsetFromCenter;
+    int angle = -(fix32<16>((absOffsetFromCenter * 10 + 45 * initialOffsetFromCenter).Clamp(-90, 90)) / 360).GetRawValue();
+    fix32<12> z = -absOffsetFromCenter * 30 - 20 * initialOffsetFromCenter;
+    if (itemIndex <= _scrollAnimator.GetValue().Int())
+    {
+        x = -x;
+        angle = -angle;
+    }
+
+    itemEx.yAngle = angle;
+    itemEx.xPosition = x + 256 / 2;
+    itemEx.zPosition = z;
+}

arm9/source/romBrowser/views/CoverFlowRecyclerView.h

@@ -5,30 +5,37 @@
 
 class CoverFlowRecyclerView : public CoverFlowRecyclerViewBase
 {
-    struct Private { explicit Private() = default; };
+    SHARED_ONLY(CoverFlowRecyclerView)
 
 public:
-    explicit CoverFlowRecyclerView(Private) { }
-
-    static SharedPtr<CoverFlowRecyclerView> CreateShared()
-    {
-        return SharedPtr<CoverFlowRecyclerView>::MakeShared(Private());
-    }
-
     void Update() override;
     void Draw(GraphicsContext& graphicsContext) override;
 
+    bool HandleInput(const InputProvider& inputProvider, FocusManager& focusManager) override;
+    void HandlePenDown(const Point& touchPoint, FocusManager& focusManager) override;
+    void HandlePenMove(const Point& touchPoint, FocusManager& focusManager) override;
+    void HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager) override;
+
 private:
     struct ViewPoolEntryEx
     {
-        Animator<int> yAngleAnimator;
+        int yAngle;
-        Animator<fix32<12>> xPositionAnimator;
+        fix32<12> xPosition;
-        Animator<fix32<12>> zPositionAnimator;
+        fix32<12> zPosition;
     };
 
     std::array<ViewPoolEntryEx, 10> _viewPoolEx;
+    Animator<fix32<12>> _scrollAnimator = Animator<fix32<12>>(0);
+    bool _penDown = false;
+    Point _penDownPosition = Point(0, 0);
+    bool _hasScrollStarted = false;
+    fix32<12> _penDownScrollOffset = 0;
 
-    void UpdateItemPosition(int viewPoolIndex, bool initial) override;
+    explicit CoverFlowRecyclerView() { }
+
+    void SetSelectedItem(int itemIdx, bool initial) override;
+
+    void UpdateItemPosition(int viewPoolIndex);
 
     void SwapViewPoolEntry(int indexA, int indexB) override
     {

arm9/source/romBrowser/views/CoverFlowRecyclerViewBase.cpp

@@ -115,7 +115,6 @@ CoverFlowRecyclerViewBase::ViewPoolEntry* CoverFlowRecyclerViewBase::BindViewPoo
     _viewPoolFreeCount--;
     entry.itemIdx = itemIdx;
     _adapter->BindView(entry.view, itemIdx);
-    UpdateItemPosition(viewPoolIndex, true);
     return &entry;
 }
 
@@ -185,9 +184,4 @@ void CoverFlowRecyclerViewBase::SetSelectedItem(int itemIdx, bool initial)
     {
         _selectedItem = BindViewPoolEntry(itemIdx);
     }
-
-    for (u32 i = _viewPoolFreeCount; i < _viewPool.size(); i++)
-    {
-        UpdateItemPosition(i, initial);
-    }
 }

arm9/source/romBrowser/views/CoverFlowRecyclerViewBase.h

@@ -1,9 +1,8 @@
 #pragma once
 #include <array>
-#include "core/EnableSharedFromThis.h"
 #include "gui/views/RecyclerViewBase.h"
 
-class CoverFlowRecyclerViewBase : public RecyclerViewBase, public EnableSharedFromThis<CoverFlowRecyclerViewBase>
+class CoverFlowRecyclerViewBase : public RecyclerViewBase
 {
 public:
     ~CoverFlowRecyclerViewBase() override;
@@ -53,8 +52,7 @@ protected:
     void BindRange(int start, int end);
     void ReleaseViewPoolEntry(int itemIdx);
     void ReleaseRange(int start, int end);
-    void SetSelectedItem(int itemIdx, bool initial);
+    virtual void SetSelectedItem(int itemIdx, bool initial);
-    virtual void UpdateItemPosition(int viewPoolIndex, bool initial) = 0;
 
     virtual void SwapViewPoolEntry(int indexA, int indexB)
     {

arm9/source/romBrowser/views/CoverView.cpp

@@ -4,6 +4,7 @@
 #include "gui/Gx.h"
 #include "gui/materialDesign.h"
 #include "gui/GraphicsContext.h"
+#include "gui/input/InputProvider.h"
 #include "CoverView.h"
 
 void CoverView::InitVram(const VramContext& vramContext)
@@ -17,6 +18,11 @@ void CoverView::InitVram(const VramContext& vramContext)
     }
 }
 
+void CoverView::Update()
+{
+    _viewModel->DisposeQueueTaskWhenComplete();
+}
+
 void CoverView::Draw(GraphicsContext& graphicsContext)
 {
     if (_cover.Lock() && _textureLoadRequest.GetState() == VBlankTextureLoadRequestState::LoadComplete)
@@ -93,3 +99,24 @@ void CoverView::UploadCoverGraphics()
         _vblankTextureLoader->RequestLoad(_textureLoadRequest);
     }
 }
+
+bool CoverView::HandleInput(const InputProvider& inputProvider, FocusManager& focusManager)
+{
+    return _inputHandler.HandleInput(inputProvider, focusManager)
+        || View::HandleInput(inputProvider, focusManager);
+}
+
+void CoverView::HandlePenDown(const Point& touchPoint, FocusManager& focusManager)
+{
+    _inputHandler.HandlePenDown(touchPoint, focusManager);
+}
+
+void CoverView::HandlePenMove(const Point& touchPoint, FocusManager& focusManager)
+{
+    _inputHandler.HandlePenMove(touchPoint, focusManager);
+}
+
+void CoverView::HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager)
+{
+    _inputHandler.HandlePenUp(lastTouchPoint, focusManager);
+}

arm9/source/romBrowser/views/CoverView.h

@@ -4,15 +4,14 @@
 #include "gui/views/View.h"
 #include "../FileType/FileCover.h"
 #include "gui/VBlankTextureLoader.h"
-
+#include "romBrowser/viewModels/RomBrowserItemViewModel.h"
-#define COVER_THICKNESS     (fix32<12>(0.23).GetRawValue())
+#include "RomBrowserItemInputHandler.h"
 
 class CoverView : public View
 {
-public:
+    SHARED_ONLY(CoverView)
-    explicit CoverView(VBlankTextureLoader* vblankTextureLoader)
-        : _vblankTextureLoader(vblankTextureLoader) { }
 
+public:
     ~CoverView() override
     {
         _vblankTextureLoader->CancelLoad(_textureLoadRequest);
@@ -20,8 +19,14 @@ public:
 
     void InitVram(const VramContext& vramContext) override;
 
+    void Update() override;
     void Draw(GraphicsContext& graphicsContext) override;
 
+    bool HandleInput(const InputProvider& inputProvider, FocusManager& focusManager) override;
+    void HandlePenDown(const Point& touchPoint, FocusManager& focusManager) override;
+    void HandlePenMove(const Point& touchPoint, FocusManager& focusManager) override;
+    void HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager) override;
+
     Rectangle GetBounds() const override
     {
         return Rectangle(_position.x - (COVER_WIDTH / 2), _position.y - (COVER_HEIGHT / 2), COVER_WIDTH, COVER_HEIGHT);
@@ -41,10 +46,21 @@ public:
 
     void UploadCoverGraphics();
 
+    RomBrowserItemViewModel& GetViewModel() const
+    {
+        return *_viewModel;
+    }
+
 private:
+    std::unique_ptr<RomBrowserItemViewModel> _viewModel;
     VBlankTextureLoader* _vblankTextureLoader;
     AtomicSharedPtr<FileCover> _cover;
     VBlankTextureLoadRequest _textureLoadRequest;
     u32 _texVramOffset = 0;
     u32 _plttVramOffset = 0;
+    RomBrowserItemInputHandler _inputHandler;
+
+    CoverView(std::unique_ptr<RomBrowserItemViewModel> viewModel, VBlankTextureLoader* vblankTextureLoader)
+        : _viewModel(std::move(viewModel)), _vblankTextureLoader(vblankTextureLoader)
+        , _inputHandler(this, _viewModel.get()) { }
 };

arm9/source/romBrowser/views/DisplaySettingsBottomSheetView.cpp

@@ -52,18 +52,18 @@ DisplaySettingsBottomSheetView::DisplaySettingsBottomSheetView(
     DisplaySettingsViewModel* viewModel, const MaterialColorScheme* materialColorScheme,
     const IFontRepository* fontRepository)
     : _viewModel(viewModel)
-    , _titleLabel(128, 16, 25, fontRepository->GetFont(FontType::Medium11))
+    , _titleLabel(Label2DView::CreateShared(128, 16, 25, fontRepository->GetFont(FontType::Medium11)))
-    , _layoutLabel(64, 16, 25, fontRepository->GetFont(FontType::Regular10))
+    , _layoutLabel(Label2DView::CreateShared(64, 16, 25, fontRepository->GetFont(FontType::Regular10)))
-    , _sortingLabel(64, 16, 25, fontRepository->GetFont(FontType::Regular10))
+    , _sortingLabel(Label2DView::CreateShared(64, 16, 25, fontRepository->GetFont(FontType::Regular10)))
     , _materialColorScheme(materialColorScheme)
     // , _filtersLabel(64, 16, 25, fontRepository->GetFont(FontType::Regular10))
 {
-    _titleLabel.SetText(u"Display Settings");
+    _titleLabel->SetText(u"Display Settings");
-    AddChildTail(&_titleLabel);
+    AddChildTail(_titleLabel.GetPointer());
-    _layoutLabel.SetText(u"Layout");
+    _layoutLabel->SetText(u"Layout");
-    AddChildTail(&_layoutLabel);
+    AddChildTail(_layoutLabel.GetPointer());
-    _sortingLabel.SetText(u"Sorting");
+    _sortingLabel->SetText(u"Sorting");
-    AddChildTail(&_sortingLabel);
+    AddChildTail(_sortingLabel.GetPointer());
     // _filtersLabel.SetText(u"Filters");
     // AddChildTail(&_filtersLabel);
 
@@ -90,7 +90,7 @@ DisplaySettingsBottomSheetView::DisplaySettingsBottomSheetView(
 
 SharedPtr<IconButton2DView> DisplaySettingsBottomSheetView::CreateLayoutOptionIconButton()
 {
-    auto layoutOption = SharedPtr<IconButton2DView>::MakeShared(
+    auto layoutOption = IconButton2DView::CreateShared(
         IconButtonView::Type::Tonal,
         IconButtonView::State::ToggleUnselected,
         md::sys::color::surfaceContainerLow,
@@ -113,7 +113,7 @@ SharedPtr<IconButton2DView> DisplaySettingsBottomSheetView::CreateLayoutOptionIc
 
 SharedPtr<IconButton2DView> DisplaySettingsBottomSheetView::CreateSortOptionIconButton()
 {
-    auto sortOption = SharedPtr<IconButton2DView>::MakeShared(
+    auto sortOption = IconButton2DView::CreateShared(
         IconButtonView::Type::Tonal,
         IconButtonView::State::ToggleUnselected,
         md::sys::color::surfaceContainerLow,
@@ -175,9 +175,9 @@ void DisplaySettingsBottomSheetView::InitVram(const VramContext& vramContext)
 
 void DisplaySettingsBottomSheetView::UpdateLabels()
 {
-    _titleLabel.SetPosition(TITLE_LABEL_X, _position.y + TITLE_LABEL_Y);
+    _titleLabel->SetPosition(TITLE_LABEL_X, _position.y + TITLE_LABEL_Y);
-    _layoutLabel.SetPosition(LAYOUT_LABEL_X, _position.y + LAYOUT_LABEL_Y);
+    _layoutLabel->SetPosition(LAYOUT_LABEL_X, _position.y + LAYOUT_LABEL_Y);
-    _sortingLabel.SetPosition(SORTING_LABEL_X, _position.y + SORTING_LABEL_Y);
+    _sortingLabel->SetPosition(SORTING_LABEL_X, _position.y + SORTING_LABEL_Y);
     // _filtersLabel.SetPosition(FILTERS_LABEL_X, _position.y + FILTERS_LABEL_Y);
 }
 
@@ -222,12 +222,12 @@ void DisplaySettingsBottomSheetView::Draw(GraphicsContext& graphicsContext)
     graphicsContext.SetClipArea(GetBounds());
     u32 oldPrio = graphicsContext.SetPriority(1);
     {
-        _titleLabel.SetBackgroundColor(_materialColorScheme->GetColor(md::sys::color::surfaceContainerLow));
+        _titleLabel->SetBackgroundColor(_materialColorScheme->GetColor(md::sys::color::surfaceContainerLow));
-        _titleLabel.SetForegroundColor(_materialColorScheme->onSurface);
+        _titleLabel->SetForegroundColor(_materialColorScheme->onSurface);
-        _layoutLabel.SetBackgroundColor(_materialColorScheme->GetColor(md::sys::color::surfaceContainerLow));
+        _layoutLabel->SetBackgroundColor(_materialColorScheme->GetColor(md::sys::color::surfaceContainerLow));
-        _layoutLabel.SetForegroundColor(_materialColorScheme->onSurfaceVariant);
+        _layoutLabel->SetForegroundColor(_materialColorScheme->onSurfaceVariant);
-        _sortingLabel.SetBackgroundColor(_materialColorScheme->GetColor(md::sys::color::surfaceContainerLow));
+        _sortingLabel->SetBackgroundColor(_materialColorScheme->GetColor(md::sys::color::surfaceContainerLow));
-        _sortingLabel.SetForegroundColor(_materialColorScheme->onSurfaceVariant);
+        _sortingLabel->SetForegroundColor(_materialColorScheme->onSurfaceVariant);
         // _filtersLabel.SetBackgroundColor(_materialColorScheme->GetColor(md::sys::color::surfaceContainerLow));
         // _filtersLabel.SetForegroundColor(_materialColorScheme->onSurfaceVariant);
         BottomSheetView::Draw(graphicsContext);
@@ -364,6 +364,11 @@ void DisplaySettingsBottomSheetView::SetGraphics(
     //     filterOption.SetGraphics(iconButtonVramToken);
 }
 
+void DisplaySettingsBottomSheetView::Close()
+{
+    _viewModel->Close();
+}
+
 u32 DisplaySettingsBottomSheetView::LoadIcon(IVramManager& vramManager,
     const unsigned int* tiles, u32 tilesLength) const
 {

arm9/source/romBrowser/views/DisplaySettingsBottomSheetView.h

@@ -11,10 +11,9 @@ class IFontRepository;
 
 class DisplaySettingsBottomSheetView : public BottomSheetView
 {
-public:
+    SHARED_ONLY(DisplaySettingsBottomSheetView)
-    DisplaySettingsBottomSheetView(DisplaySettingsViewModel* viewModel,
-        const MaterialColorScheme* materialColorScheme, const IFontRepository* fontRepository);
 
+public:
     void InitVram(const VramContext& vramContext) override;
     void Update() override;
     void Draw(GraphicsContext& graphicsContext) override;
@@ -29,12 +28,15 @@ public:
         focusManager.Focus(_layoutOptions[0]);
     }
 
+protected:
+    void Close() override;
+
 private:
     DisplaySettingsViewModel* _viewModel;
 
-    Label2DView _titleLabel;
+    SharedPtr<Label2DView> _titleLabel;
-    Label2DView _layoutLabel;
+    SharedPtr<Label2DView> _layoutLabel;
-    Label2DView _sortingLabel;
+    SharedPtr<Label2DView> _sortingLabel;
     // LabelView _filtersLabel;
 
     std::array<SharedPtr<IconButton2DView>, 4> _layoutOptions;
@@ -47,6 +49,9 @@ private:
     SharedPtr<IconButton2DView> CreateSortOptionIconButton();
     // IconButton2DView CreateFilterOptionIconButton();
 
+    DisplaySettingsBottomSheetView(DisplaySettingsViewModel* viewModel,
+        const MaterialColorScheme* materialColorScheme, const IFontRepository* fontRepository);
+
     void UpdateLabels();
 
     u32 LoadIcon(IVramManager& vramManager, const unsigned int* tiles, u32 tilesLength) const;

arm9/source/romBrowser/views/IconButton2DView.cpp

@@ -17,7 +17,7 @@ void IconButton2DView::Draw(GraphicsContext& graphicsContext)
         return;
 
     u32 iconPaletteRow;
-    if (_isFocused)
+    if (_isFocused || _penDown)
     {
         const auto& bgColor = _materialColorScheme->GetColor(_backgroundColor);
         const auto& selectorBaseColor = _materialColorScheme->GetColor(GetCircleBackgroundColor());

arm9/source/romBrowser/views/IconButton2DView.h

@@ -3,6 +3,8 @@
 
 class IconButton2DView : public IconButtonView
 {
+    SHARED_ONLY(IconButton2DView)
+
 public:
     class VramToken
     {
@@ -17,12 +19,6 @@ public:
         constexpr u32 GetVramOffset() const { return _vramOffset; }
     };
 
-    IconButton2DView() : IconButtonView() { }
-
-    IconButton2DView(Type type, State state,
-        md::sys::color backgroundColor, const MaterialColorScheme* materialColorScheme)
-        : IconButtonView(type, state, backgroundColor, materialColorScheme) { }
-
     void Draw(GraphicsContext& graphicsContext) override;
 
     void SetGraphics(const VramToken& vramToken)
@@ -34,4 +30,8 @@ public:
 
 private:
     u32 _selectorVramOffset;
+
+    IconButton2DView(Type type, State state,
+        md::sys::color backgroundColor, const MaterialColorScheme* materialColorScheme)
+        : IconButtonView(type, state, backgroundColor, materialColorScheme) { }
 };

arm9/source/romBrowser/views/IconButton3DView.cpp

@@ -19,7 +19,7 @@ void IconButton3DView::Draw(GraphicsContext& graphicsContext)
         return;
 
     u32 iconPaletteRow;
-    if (_isFocused)
+    if (_isFocused || _penDown)
     {
         const auto& selectorBaseColor = _materialColorScheme->GetColor(GetCircleBackgroundColor());
         const auto& fgColor = _materialColorScheme->GetColor(GetForegroundColor());

arm9/source/romBrowser/views/IconButton3DView.h

@@ -5,13 +5,9 @@
 
 class IconButton3DView : public IconButtonView
 {
+    SHARED_ONLY(IconButton3DView)
+
 public:
-    IconButton3DView() : IconButtonView() { }
-
-    IconButton3DView(Type type, State state,
-        md::sys::color backgroundColor, const MaterialColorScheme* materialColorScheme)
-        : IconButtonView(type, state, backgroundColor, materialColorScheme) { }
-
     void Draw(GraphicsContext& graphicsContext) override;
 
     static void UploadGraphics(const VramContext& vramContext);
@@ -19,5 +15,9 @@ public:
 private:
     static u32 sSelectorTextureVramOffset;
 
+    IconButton3DView(Type type, State state,
+        md::sys::color backgroundColor, const MaterialColorScheme* materialColorScheme)
+        : IconButtonView(type, state, backgroundColor, materialColorScheme) { }
+
     void DrawSelector(GraphicsContext& graphicsContext, const Rgb<8, 8, 8>& color);
 };

arm9/source/romBrowser/views/IconButtonView.cpp

@@ -7,12 +7,46 @@ bool IconButtonView::HandleInput(const InputProvider& inputProvider, FocusManage
     if (inputProvider.Triggered(InputKey::A))
     {
         if (_action)
+        {
             _action(this, _actionArg);
+        }
+
         return true;
     }
     return View::HandleInput(inputProvider, focusManager);
 }
 
+void IconButtonView::HandlePenDown(const Point& touchPoint, FocusManager& focusManager)
+{
+    if (GetBounds().Contains(touchPoint))
+    {
+        _penDown = true;
+    }
+}
+
+void IconButtonView::HandlePenMove(const Point& touchPoint, FocusManager& focusManager)
+{
+    if (!GetBounds().Contains(touchPoint))
+    {
+        _penDown = false;
+    }
+}
+
+void IconButtonView::HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager)
+{
+    if (_penDown && GetBounds().Contains(lastTouchPoint))
+    {
+        focusManager.Focus(SharedFromThis());
+
+        if (_action)
+        {
+            _action(this, _actionArg);
+        }
+    }
+
+    _penDown = false;
+}
+
 bool IconButtonView::IsCircleBackgroundVisible() const
 {
     switch (_type)

arm9/source/romBrowser/views/IconButtonView.h

@@ -24,16 +24,6 @@ public:
         ToggleSelected
     };
 
-    IconButtonView()
-        : _iconVramOffset(0), _action(nullptr), _actionArg(nullptr)
-        , _type(Type::Standard), _state(State::NoToggle) { }
-
-    IconButtonView(Type type, State state,
-        md::sys::color backgroundColor, const MaterialColorScheme* materialColorScheme)
-        : _iconVramOffset(0), _backgroundColor(backgroundColor)
-        , _action(nullptr), _actionArg(nullptr), _type(type), _state(state)
-        , _materialColorScheme(materialColorScheme) { }
-
     void SetIconVramOffset(u32 vramOffset) { _iconVramOffset = vramOffset; }
 
     Rectangle GetBounds() const override
@@ -53,6 +43,9 @@ public:
     }
 
     bool HandleInput(const InputProvider& inputProvider, FocusManager& focusManager) override;
+    void HandlePenDown(const Point& touchPoint, FocusManager& focusManager) override;
+    void HandlePenMove(const Point& touchPoint, FocusManager& focusManager) override;
+    void HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager) override;
 
 protected:
     u32 _iconVramOffset;
@@ -62,6 +55,13 @@ protected:
     Type _type;
     State _state;
     const MaterialColorScheme* _materialColorScheme;
+    bool _penDown = false;
+
+    IconButtonView(Type type, State state,
+        md::sys::color backgroundColor, const MaterialColorScheme* materialColorScheme)
+        : _iconVramOffset(0), _backgroundColor(backgroundColor)
+        , _action(nullptr), _actionArg(nullptr), _type(type), _state(state)
+        , _materialColorScheme(materialColorScheme) { }
 
     bool IsCircleBackgroundVisible() const;
     md::sys::color GetCircleBackgroundColor() const;

arm9/source/romBrowser/views/IconGridItemView.cpp

@@ -1,6 +1,7 @@
 #include "common.h"
 #include "gui/IVramManager.h"
 #include "gui/VramContext.h"
+#include "gui/input/InputProvider.h"
 #include "IconGridItemView.h"
 
 void IconGridItemView::InitVram(const VramContext& vramContext)
@@ -15,8 +16,31 @@ void IconGridItemView::InitVram(const VramContext& vramContext)
 
 void IconGridItemView::Update()
 {
+    _viewModel->DisposeQueueTaskWhenComplete();
+
     if (_icon)
     {
         _icon->Update();
     }
 }
+
+bool IconGridItemView::HandleInput(const InputProvider& inputProvider, FocusManager& focusManager)
+{
+    return _inputHandler.HandleInput(inputProvider, focusManager)
+        || View::HandleInput(inputProvider, focusManager);
+}
+
+void IconGridItemView::HandlePenDown(const Point& touchPoint, FocusManager& focusManager)
+{
+    _inputHandler.HandlePenDown(touchPoint, focusManager);
+}
+
+void IconGridItemView::HandlePenMove(const Point& touchPoint, FocusManager& focusManager)
+{
+    _inputHandler.HandlePenMove(touchPoint, focusManager);
+}
+
+void IconGridItemView::HandlePenUp(const Point& lastTouchPoint, FocusManager& focusManager)
+{
+    _inputHandler.HandlePenUp(lastTouchPoint, focusManager);
+}