From 333e0a0a5e1e9b39327321c12e825d7e2aad8228 Mon Sep 17 00:00:00 2001
From: Dan Sandler <dsandler@android.com>
Date: Tue, 23 Feb 2021 23:13:29 -0500
Subject: [PATCH] Verbose touch debugging for the status bar.

This resurrects some truly ancient code (2012!) to
understand how users interact with the shade open gesture.
It turns out to be a convenient way to get logs for b/178277858, in which the notification shade simply won't be pulled down in some situations.

Bug: 178277858
Test: touch status bar; watch `adb logcat -b events`
Test: adb shell dumpsys activity service com.android.systemui ; \
      adb pull /data/user_de/0/com.android.systemui/cache/statusbar_gestures.dat
Change-Id: I2a0d66159c23dd68437b5e750309ae134e3797b7
---
 .../systemui/statusbar/GestureRecorder.java        |  6 ++++--
 .../systemui/statusbar/phone/StatusBar.java        | 14 +++++++++-----
 2 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/GestureRecorder.java b/packages/SystemUI/src/com/android/systemui/statusbar/GestureRecorder.java
index f2adaf042b2f6..9ed9659c7ab8b 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/GestureRecorder.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/GestureRecorder.java
@@ -207,7 +207,7 @@ public class GestureRecorder {
             sb.append(g.toJson());
             count++;
         }
-        mLastSaveLen = count;
+        mLastSaveLen += count;
         sb.append("]");
         return sb.toString();
     }
@@ -249,7 +249,9 @@ public class GestureRecorder {
     public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
         save();
         if (mLastSaveLen >= 0) {
-            pw.println(String.valueOf(mLastSaveLen) + " gestures written to " + mLogfile);
+            pw.println(String.valueOf(mLastSaveLen)
+                    + " gestures since last dump written to " + mLogfile);
+            mLastSaveLen = 0;
         } else {
             pw.println("error writing gestures");
         }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
index 041a97e1d4045..b25fced6a2127 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
@@ -78,6 +78,7 @@ import android.media.AudioAttributes;
 import android.metrics.LogMaker;
 import android.net.Uri;
 import android.os.AsyncTask;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
@@ -276,7 +277,8 @@ public class StatusBar extends SystemUI implements DemoMode,
     public static final boolean DEBUG = false;
     public static final boolean SPEW = false;
     public static final boolean DUMPTRUCK = true; // extra dumpsys info
-    public static final boolean DEBUG_GESTURES = false;
+    public static final boolean DEBUG_GESTURES = Build.IS_DEBUGGABLE; // TODO(b/178277858)
+    public static final boolean DEBUG_GESTURES_VERBOSE = true;
     public static final boolean DEBUG_MEDIA_FAKE_ARTWORK = false;
     public static final boolean DEBUG_CAMERA_LIFT = false;
 
@@ -456,9 +458,7 @@ public class StatusBar extends SystemUI implements DemoMode,
     private final DisplayMetrics mDisplayMetrics;
 
     // XXX: gesture research
-    private final GestureRecorder mGestureRec = DEBUG_GESTURES
-        ? new GestureRecorder("/sdcard/statusbar_gestures.dat")
-        : null;
+    private GestureRecorder mGestureRec = null;
 
     private final ScreenPinningRequest mScreenPinningRequest;
 
@@ -856,6 +856,10 @@ public class StatusBar extends SystemUI implements DemoMode,
 
         mActivityIntentHelper = new ActivityIntentHelper(mContext);
         DateTimeView.setReceiverHandler(timeTickHandler);
+
+        if (DEBUG_GESTURES) {
+            mGestureRec = new GestureRecorder(mContext.getCacheDir() + "/statusbar_gestures.dat");
+        }
     }
 
     @Override
@@ -2267,7 +2271,7 @@ public class StatusBar extends SystemUI implements DemoMode,
 
     public boolean interceptTouchEvent(MotionEvent event) {
         if (DEBUG_GESTURES) {
-            if (event.getActionMasked() != MotionEvent.ACTION_MOVE) {
+            if (DEBUG_GESTURES_VERBOSE || event.getActionMasked() != MotionEvent.ACTION_MOVE) {
                 EventLog.writeEvent(EventLogTags.SYSUI_STATUSBAR_TOUCH,
                         event.getActionMasked(), (int) event.getX(), (int) event.getY(),
                         mDisabled1, mDisabled2);