Add extra logs to track dozing state changes

When starting AOD

Test: manual see logs
Bug: 202630143

Change-Id: Ib78145e068ea40dd727980b4845c8b2d5e250d1f

packages/SystemUI/src/com/android/systemui/doze/DozeLog.java

@@ -115,7 +115,7 @@ public class DozeLog implements Dumpable {
     }
 
     /**
-     * Appends dozing event to the logs
+     * Appends dozing event to the logs. Logs current dozing state when entering/exiting AOD.
      * @param dozing true if dozing, else false
      */
     public void traceDozing(boolean dozing) {
@@ -123,6 +123,14 @@ public class DozeLog implements Dumpable {
         mPulsing = false;
     }
 
+    /**
+     * Appends dozing event to the logs when dozing has changed in AOD.
+     * @param dozing true if we're now dozing, else false
+     */
+    public void traceDozingChanged(boolean dozing) {
+        mLogger.logDozingChanged(dozing);
+    }
+
     /**
      * Appends dozing event to the logs
      * @param suppressed true if dozing is suppressed

packages/SystemUI/src/com/android/systemui/doze/DozeLogger.kt

@@ -66,6 +66,14 @@ class DozeLogger @Inject constructor(
         })
     }
 
+    fun logDozingChanged(isDozing: Boolean) {
+        buffer.log(TAG, INFO, {
+            bool1 = isDozing
+        }, {
+            "Dozing changed dozing=$bool1"
+        })
+    }
+
     fun logDozingSuppressed(isDozingSuppressed: Boolean) {
         buffer.log(TAG, INFO, {
             bool1 = isDozingSuppressed

packages/SystemUI/src/com/android/systemui/statusbar/phone/DozeScrimController.java

@@ -21,7 +21,6 @@ import android.os.Handler;
 import android.util.Log;
 
 import com.android.internal.annotations.VisibleForTesting;
-import com.android.systemui.Dependency;
 import com.android.systemui.dagger.SysUISingleton;
 import com.android.systemui.doze.DozeHost;
 import com.android.systemui.doze.DozeLog;
@@ -92,10 +91,14 @@ public class DozeScrimController implements StateListener {
     };
 
     @Inject
-    public DozeScrimController(DozeParameters dozeParameters, DozeLog dozeLog) {
+    public DozeScrimController(
+            DozeParameters dozeParameters,
+            DozeLog dozeLog,
+            StatusBarStateController statusBarStateController
+    ) {
         mDozeParameters = dozeParameters;
-        //Never expected to be destroyed
-        Dependency.get(StatusBarStateController.class).addCallback(this);
+        // Never expected to be destroyed
+        statusBarStateController.addCallback(this);
         mDozeLog = dozeLog;
     }
 
@@ -219,6 +222,10 @@ public class DozeScrimController implements StateListener {
 
     @Override
     public void onDozingChanged(boolean isDozing) {
+        if (mDozing != isDozing) {
+            mDozeLog.traceDozingChanged(isDozing);
+        }
+
         setDozing(isDozing);
     }
 }

packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/DozeScrimControllerTest.java

@@ -28,6 +28,7 @@ import androidx.test.filters.SmallTest;
 import com.android.systemui.SysuiTestCase;
 import com.android.systemui.doze.DozeHost;
 import com.android.systemui.doze.DozeLog;
+import com.android.systemui.plugins.statusbar.StatusBarStateController;
 
 import org.junit.Before;
 import org.junit.Test;
@@ -44,12 +45,15 @@ public class DozeScrimControllerTest extends SysuiTestCase {
     private DozeParameters mDozeParameters;
     @Mock
     private DozeLog mDozeLog;
+    @Mock
+    private StatusBarStateController mStatusBarStateController;
     private DozeScrimController mDozeScrimController;
 
     @Before
     public void setup() {
         MockitoAnnotations.initMocks(this);
-        mDozeScrimController = new DozeScrimController(mDozeParameters, mDozeLog);
+        mDozeScrimController = new DozeScrimController(mDozeParameters, mDozeLog,
+                mStatusBarStateController);
         mDozeScrimController.setDozing(true);
     }