Pointer icon refactor for stylus (base)

When PointerChoreographer is enabled, PointerChoreographer can
create multiple StylusPointerControllers for each stylus device.
A StylusPointerController is created when the corresponding stylus
sends the first hover event. It can show and hide a hover pointer
on the associated display.

Test: atest libinputservice_test
Bug: 293587049
Change-Id: I208f09f0e0f73a6396d60f5b2bd0242dddd3c66b
diff --git a/libs/input/PointerController.cpp b/libs/input/PointerController.cpp
index 246db6c..972e168 100644
--- a/libs/input/PointerController.cpp
+++ b/libs/input/PointerController.cpp
@@ -78,6 +78,10 @@
             controller = std::shared_ptr<PointerController>(
                     new TouchPointerController(policy, looper, spriteController, enabled));
             break;
+        case ControllerType::STYLUS:
+            controller = std::shared_ptr<PointerController>(
+                    new StylusPointerController(policy, looper, spriteController, enabled));
+            break;
         case ControllerType::LEGACY:
         default:
             controller = std::shared_ptr<PointerController>(
@@ -410,4 +414,13 @@
     PointerController::setPresentation(Presentation::SPOT);
 }
 
+// --- StylusPointerController ---
+
+StylusPointerController::StylusPointerController(const sp<PointerControllerPolicyInterface>& policy,
+                                                 const sp<Looper>& looper,
+                                                 SpriteController& spriteController, bool enabled)
+      : PointerController(policy, looper, spriteController, enabled) {
+    PointerController::setPresentation(Presentation::STYLUS_HOVER);
+}
+
 } // namespace android