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

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;