Use separate LogBuffer for QS config changes

There are a lot of messages logged in the QSLog LogBuffer. In some bugreports, the configChanged logs were not there anymore, as it was being overridden by others. We could have increased the size of the buffer, but using another separate one only for config changes increases the chances of having the logs we care about in bugreports.

Bug: 272012567
Test: Checked bugreport after adding this new logbuffer
Change-Id: I816b354a2530b54f418a13d0e2a309388a9146ec

packages/SystemUI/src/com/android/systemui/log/dagger/LogModule.java

@@ -152,6 +152,14 @@ public class LogModule {
         return factory.create("QSLog", 700 /* maxSize */, false /* systrace */);
     }
 
+    /** Provides a logging buffer for logs related to Quick Settings configuration. */
+    @Provides
+    @SysUISingleton
+    @QSConfigLog
+    public static LogBuffer provideQSConfigLogBuffer(LogBufferFactory factory) {
+        return factory.create("QSConfigLog", 100 /* maxSize */, true /* systrace */);
+    }
+
     /** Provides a logging buffer for {@link com.android.systemui.broadcast.BroadcastDispatcher} */
     @Provides
     @SysUISingleton

packages/SystemUI/src/com/android/systemui/log/dagger/QSConfigLog.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.log.dagger;
+
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import com.android.systemui.plugins.log.LogBuffer;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.Retention;
+
+import javax.inject.Qualifier;
+
+/** A {@link LogBuffer} for QS configuration changed messages. */
+@Qualifier
+@Documented
+@Retention(RUNTIME)
+public @interface QSConfigLog {
+}

packages/SystemUI/src/com/android/systemui/qs/QSPanelControllerBase.java

@@ -91,16 +91,19 @@ public abstract class QSPanelControllerBase<T extends QSPanel> extends ViewContr
             new QSPanel.OnConfigurationChangedListener() {
                 @Override
                 public void onConfigurationChange(Configuration newConfig) {
-                    mQSLogger.logOnConfigurationChanged(
-                        /* lastOrientation= */ mLastOrientation,
-                        /* newOrientation= */ newConfig.orientation,
-                        /* containerName= */ mView.getDumpableTag());
-
-                    boolean previousSplitShadeState = mShouldUseSplitNotificationShade;
+                    final boolean previousSplitShadeState = mShouldUseSplitNotificationShade;
+                    final int previousOrientation = mLastOrientation;
                     mShouldUseSplitNotificationShade =
-                        LargeScreenUtils.shouldUseSplitNotificationShade(getResources());
+                            LargeScreenUtils.shouldUseSplitNotificationShade(getResources());
                     mLastOrientation = newConfig.orientation;
 
+                    mQSLogger.logOnConfigurationChanged(
+                        /* oldOrientation= */ previousOrientation,
+                        /* newOrientation= */ mLastOrientation,
+                        /* oldShouldUseSplitShade= */ previousSplitShadeState,
+                        /* newShouldUseSplitShade= */ mShouldUseSplitNotificationShade,
+                        /* containerName= */ mView.getDumpableTag());
+
                     switchTileLayoutIfNeeded();
                     onConfigurationChanged();
                     if (previousSplitShadeState != mShouldUseSplitNotificationShade) {

packages/SystemUI/src/com/android/systemui/qs/logging/QSLogger.kt

@@ -16,8 +16,12 @@
 
 package com.android.systemui.qs.logging
 
+import android.content.res.Configuration.ORIENTATION_LANDSCAPE
+import android.content.res.Configuration.ORIENTATION_PORTRAIT
+import android.content.res.Configuration.Orientation
 import android.service.quicksettings.Tile
 import android.view.View
+import com.android.systemui.log.dagger.QSConfigLog
 import com.android.systemui.log.dagger.QSLog
 import com.android.systemui.plugins.log.ConstantStringsLogger
 import com.android.systemui.plugins.log.ConstantStringsLoggerImpl
@@ -32,8 +36,12 @@ import javax.inject.Inject
 
 private const val TAG = "QSLog"
 
-class QSLogger @Inject constructor(@QSLog private val buffer: LogBuffer) :
-    ConstantStringsLogger by ConstantStringsLoggerImpl(buffer, TAG) {
+class QSLogger
+@Inject
+constructor(
+    @QSLog private val buffer: LogBuffer,
+    @QSConfigLog private val configChangedBuffer: LogBuffer,
+) : ConstantStringsLogger by ConstantStringsLoggerImpl(buffer, TAG) {
 
     fun logException(@CompileTimeConstant logMsg: String, ex: Exception) {
         buffer.log(TAG, ERROR, {}, { logMsg }, exception = ex)
@@ -264,19 +272,28 @@ class QSLogger @Inject constructor(@QSLog private val buffer: LogBuffer) :
     }
 
     fun logOnConfigurationChanged(
-        lastOrientation: Int,
-        newOrientation: Int,
+        @Orientation oldOrientation: Int,
+        @Orientation newOrientation: Int,
+        newShouldUseSplitShade: Boolean,
+        oldShouldUseSplitShade: Boolean,
         containerName: String
     ) {
-        buffer.log(
+        configChangedBuffer.log(
             TAG,
             DEBUG,
             {
                 str1 = containerName
-                int1 = lastOrientation
+                int1 = oldOrientation
                 int2 = newOrientation
+                bool1 = oldShouldUseSplitShade
+                bool2 = newShouldUseSplitShade
             },
-            { "configuration change: $str1 orientation was $int1, now $int2" }
+            {
+                "config change: " +
+                    "$str1 orientation=${toOrientationString(int2)} " +
+                    "(was ${toOrientationString(int1)}), " +
+                    "splitShade=$bool2 (was $bool1)"
+            }
         )
     }
 
@@ -353,3 +370,11 @@ class QSLogger @Inject constructor(@QSLog private val buffer: LogBuffer) :
         }
     }
 }
+
+private inline fun toOrientationString(@Orientation orientation: Int): String {
+    return when (orientation) {
+        ORIENTATION_LANDSCAPE -> "land"
+        ORIENTATION_PORTRAIT -> "port"
+        else -> "undefined"
+    }
+}