From ed271ebbce8364b56b8718579806f4d5c8d08931 Mon Sep 17 00:00:00 2001
From: Himanshi <himanshijn@google.com>
Date: Wed, 21 Oct 2020 22:51:19 +0100
Subject: [PATCH] Import wear power button gestures to master.

Features imported in this change:
1. Double press on power button to launch target activity.
2. De-dup the power button gestures handled by PhoneWindowManager
from GestureLauncherService.

Bug: 200218055
Test: manual test
Change-Id: I573a2910f0a564a5990de9c6b9d75360c6211fd5
---
 core/res/res/values/config.xml                |  7 ++++
 core/res/res/values/symbols.xml               |  1 +
 .../server/GestureLauncherService.java        | 14 +++++--
 .../server/policy/PhoneWindowManager.java     | 41 ++++++++++++++++++-
 4 files changed, 59 insertions(+), 4 deletions(-)

diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index 2b830b483d8da..3d28b156cdc63 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -1048,9 +1048,16 @@
             0 - Nothing
             1 - Toggle theater mode setting
             2 - Brightness boost
+            3 - Launch target activity defined by config_doublePressOnPowerTargetActivity
+                if available
     -->
     <integer name="config_doublePressOnPowerBehavior">0</integer>
 
+    <!-- Activity name for the default target activity to be launched. Note that
+            config_doublePressOnPowerBehavior must be set to 3 for this to work. [DO NOT TRANSLATE]
+    -->
+    <string name="config_doublePressOnPowerTargetActivity" translatable="false"></string>
+
     <!-- Control the behavior when the user triple presses the power button.
             0 - Nothing
             1 - Toggle theater mode setting
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index 45d9a36d244d2..63c1a1fbe20e1 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -463,6 +463,7 @@
   <java-symbol type="integer" name="config_shortPressOnStemPrimaryBehavior" />
   <java-symbol type="integer" name="config_doublePressOnStemPrimaryBehavior" />
   <java-symbol type="integer" name="config_triplePressOnStemPrimaryBehavior" />
+  <java-symbol type="string" name="config_doublePressOnPowerTargetActivity" />
   <java-symbol type="integer" name="config_windowOutsetBottom" />
   <java-symbol type="integer" name="db_connection_pool_size" />
   <java-symbol type="integer" name="db_journal_size_limit" />
diff --git a/services/core/java/com/android/server/GestureLauncherService.java b/services/core/java/com/android/server/GestureLauncherService.java
index d04698cb5aeb6..b0c80ae955dde 100644
--- a/services/core/java/com/android/server/GestureLauncherService.java
+++ b/services/core/java/com/android/server/GestureLauncherService.java
@@ -22,6 +22,7 @@ import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
+import android.content.pm.PackageManager;
 import android.content.res.Resources;
 import android.database.ContentObserver;
 import android.hardware.Sensor;
@@ -150,6 +151,8 @@ public class GestureLauncherService extends SystemService {
     private int mPowerButtonSlowConsecutiveTaps;
     private final UiEventLogger mUiEventLogger;
 
+    private boolean mHasFeatureWatch;
+
     @VisibleForTesting
     public enum GestureLauncherEvent implements UiEventLogger.UiEventEnum {
         @UiEvent(doc = "The user lifted the device just the right way to launch the camera.")
@@ -214,6 +217,9 @@ public class GestureLauncherService extends SystemService {
             mUserId = ActivityManager.getCurrentUser();
             mContext.registerReceiver(mUserReceiver, new IntentFilter(Intent.ACTION_USER_SWITCHED));
             registerContentObservers();
+
+            mHasFeatureWatch =
+                    mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_WATCH);
         }
     }
 
@@ -390,8 +396,7 @@ public class GestureLauncherService extends SystemService {
     /**
      * Whether to enable emergency gesture.
      */
-    @VisibleForTesting
-    static boolean isEmergencyGestureSettingEnabled(Context context, int userId) {
+    public static boolean isEmergencyGestureSettingEnabled(Context context, int userId) {
         return isEmergencyGestureEnabled(context.getResources())
                 && Settings.Secure.getIntForUser(context.getContentResolver(),
                 Settings.Secure.EMERGENCY_GESTURE_ENABLED, 1, userId) != 0;
@@ -475,7 +480,10 @@ public class GestureLauncherService extends SystemService {
             if (mEmergencyGestureEnabled) {
                 // Commit to intercepting the powerkey event after the second "quick" tap to avoid
                 // lockscreen changes between launching camera and the emergency gesture flow.
-                if (mPowerButtonConsecutiveTaps > 1) {
+                // Since watch doesn't have camera gesture, only intercept power key event after
+                // emergency gesture tap count.
+                if (mPowerButtonConsecutiveTaps
+                        > (mHasFeatureWatch ? EMERGENCY_GESTURE_POWER_TAP_COUNT_THRESHOLD : 1)) {
                     intercept = interactive;
                 }
                 if (mPowerButtonConsecutiveTaps == EMERGENCY_GESTURE_POWER_TAP_COUNT_THRESHOLD) {
diff --git a/services/core/java/com/android/server/policy/PhoneWindowManager.java b/services/core/java/com/android/server/policy/PhoneWindowManager.java
index f61b56280b89a..5c15a84e3b3bb 100644
--- a/services/core/java/com/android/server/policy/PhoneWindowManager.java
+++ b/services/core/java/com/android/server/policy/PhoneWindowManager.java
@@ -280,6 +280,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
     static final int MULTI_PRESS_POWER_NOTHING = 0;
     static final int MULTI_PRESS_POWER_THEATER_MODE = 1;
     static final int MULTI_PRESS_POWER_BRIGHTNESS_BOOST = 2;
+    static final int MULTI_PRESS_POWER_LAUNCH_TARGET_ACTIVITY = 3;
 
     // must match: config_longPressOnBackBehavior in config.xml
     static final int LONG_PRESS_BACK_NOTHING = 0;
@@ -497,6 +498,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
     long mLongPressOnPowerAssistantTimeoutMs;
     int mVeryLongPressOnPowerBehavior;
     int mDoublePressOnPowerBehavior;
+    ComponentName mPowerDoublePressTargetActivity;
     int mTriplePressOnPowerBehavior;
     int mLongPressOnBackBehavior;
     int mShortPressOnSleepBehavior;
@@ -952,6 +954,8 @@ public class PhoneWindowManager implements WindowManagerPolicy {
             powerMultiPressAction(eventTime, interactive, mDoublePressOnPowerBehavior);
         } else if (count == 3) {
             powerMultiPressAction(eventTime, interactive, mTriplePressOnPowerBehavior);
+        } else if (count > 3 && count <= getMaxMultiPressPowerCount()) {
+            Slog.d(TAG, "No behavior defined for power press count " + count);
         } else if (count == 1 && interactive && !beganFromNonInteractive) {
             if (mSideFpsEventHandler.onSinglePressDetected(eventTime)) {
                 Slog.i(TAG, "Suppressing power key because the user is interacting with the "
@@ -1084,6 +1088,30 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                 }
                 mPowerManager.boostScreenBrightness(eventTime);
                 break;
+            case MULTI_PRESS_POWER_LAUNCH_TARGET_ACTIVITY:
+                if (DEBUG_INPUT) {
+                    Slog.d(TAG, "Executing the double press power action.");
+                }
+                final boolean keyguardActive =
+                        mKeyguardDelegate != null && mKeyguardDelegate.isShowing();
+                if (!keyguardActive) {
+                    Intent intent = new Intent();
+                    if (mPowerDoublePressTargetActivity != null) {
+                        intent.setComponent(mPowerDoublePressTargetActivity);
+                        ResolveInfo resolveInfo = mContext.getPackageManager().resolveActivity(
+                                intent, /* flags= */0);
+                        if (resolveInfo != null) {
+                            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
+                                    | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
+                            startActivityAsUser(intent, UserHandle.CURRENT_OR_SELF);
+                        } else {
+                            Slog.e(TAG, "Could not resolve activity with : "
+                                    + mPowerDoublePressTargetActivity.flattenToString()
+                                    + " name.");
+                        }
+                    }
+                }
+                break;
         }
     }
 
@@ -1098,7 +1126,13 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         // GestureLauncherService.
         // To speed up the handling of single-press of power button inside SingleKeyGestureDetector,
         // however, we limit the max count to the number of button presses actually handled by the
-        // SingleKeyGestureDetector.
+        // SingleKeyGestureDetector except for wearable devices, where we want to de-dup the double
+        // press gesture with the emergency gesture.
+        if (mHasFeatureWatch
+                && GestureLauncherService.isEmergencyGestureSettingEnabled(
+                        mContext, ActivityManager.getCurrentUser())) {
+            return 5;
+        }
         if (mTriplePressOnPowerBehavior != MULTI_PRESS_POWER_NOTHING) {
             return 3;
         }
@@ -1933,6 +1967,9 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                 com.android.internal.R.integer.config_veryLongPressOnPowerBehavior);
         mDoublePressOnPowerBehavior = mContext.getResources().getInteger(
                 com.android.internal.R.integer.config_doublePressOnPowerBehavior);
+        mPowerDoublePressTargetActivity = ComponentName.unflattenFromString(
+            mContext.getResources().getString(
+                com.android.internal.R.string.config_doublePressOnPowerTargetActivity));
         mTriplePressOnPowerBehavior = mContext.getResources().getInteger(
                 com.android.internal.R.integer.config_triplePressOnPowerBehavior);
         mShortPressOnSleepBehavior = mContext.getResources().getInteger(
@@ -5686,6 +5723,8 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                 return "MULTI_PRESS_POWER_THEATER_MODE";
             case MULTI_PRESS_POWER_BRIGHTNESS_BOOST:
                 return "MULTI_PRESS_POWER_BRIGHTNESS_BOOST";
+            case MULTI_PRESS_POWER_LAUNCH_TARGET_ACTIVITY:
+                return "MULTI_PRESS_POWER_LAUNCH_TARGET_ACTIVITY";
             default:
                 return Integer.toString(behavior);
         }