Add TouchSpotController to PointerController dump.

Bug: 254277939
Test: manually inspect `dumpsys input`
Change-Id: I3a50e13885df90253335f013cda28b5ce9d2def7

libs/input/PointerController.cpp

@@ -331,6 +331,10 @@ void PointerController::dump(std::string& dump) {
     for (const auto& info : mLocked.mDisplayInfos) {
         info.dump(dump, INDENT3);
     }
+    dump += INDENT2 "Spot Controllers:\n";
+    for (const auto& [_, spotController] : mLocked.spotControllers) {
+        spotController.dump(dump, INDENT3);
+    }
 }
 
 } // namespace android

libs/input/TouchSpotController.cpp

@@ -21,8 +21,15 @@
 
 #include "TouchSpotController.h"
 
+#include <android-base/stringprintf.h>
+#include <input/PrintTools.h>
 #include <log/log.h>
 
+#include <mutex>
+
+#define INDENT "  "
+#define INDENT2 "    "
+
 namespace {
 // Time to spend fading out the spot completely.
 const nsecs_t SPOT_FADE_DURATION = 200 * 1000000LL; // 200 ms
@@ -53,6 +60,12 @@ void TouchSpotController::Spot::updateSprite(const SpriteIcon* icon, float x, fl
     }
 }
 
+void TouchSpotController::Spot::dump(std::string& out, const char* prefix) const {
+    out += prefix;
+    base::StringAppendF(&out, "Spot{id=%" PRIx32 ", alpha=%f, scale=%f, pos=[%f, %f]}\n", id, alpha,
+                        scale, x, y);
+}
+
 // --- TouchSpotController ---
 
 TouchSpotController::TouchSpotController(int32_t displayId, PointerControllerContext& context)
@@ -255,4 +268,22 @@ void TouchSpotController::startAnimationLocked() REQUIRES(mLock) {
     mContext.addAnimationCallback(mDisplayId, func);
 }
 
+void TouchSpotController::dump(std::string& out, const char* prefix) const {
+    using base::StringAppendF;
+    out += prefix;
+    out += "SpotController:\n";
+    out += prefix;
+    StringAppendF(&out, INDENT "DisplayId: %" PRId32 "\n", mDisplayId);
+    std::scoped_lock lock(mLock);
+    out += prefix;
+    StringAppendF(&out, INDENT "Animating: %s\n", toString(mLocked.animating));
+    out += prefix;
+    out += INDENT "Spots:\n";
+    std::string spotPrefix = prefix;
+    spotPrefix += INDENT2;
+    for (const auto& spot : mLocked.displaySpots) {
+        spot->dump(out, spotPrefix.c_str());
+    }
+}
+
 } // namespace android

libs/input/TouchSpotController.h

@@ -38,6 +38,8 @@ public:
     void reloadSpotResources();
     bool doAnimations(nsecs_t timestamp);
 
+    void dump(std::string& out, const char* prefix = "") const;
+
 private:
     struct Spot {
         static const uint32_t INVALID_ID = 0xffffffff;
@@ -58,6 +60,7 @@ private:
                 mLastIcon(nullptr) {}
 
         void updateSprite(const SpriteIcon* icon, float x, float y, int32_t displayId);
+        void dump(std::string& out, const char* prefix = "") const;
 
     private:
         const SpriteIcon* mLastIcon;