SystemUI: Add double tap to sleep gesture

Author: Roman Birg <roman@cyngn.com>
Date:   Sun Nov 23 06:54:06 2014 -0800

    SystemUI: double tap to sleep improvements

    * Make it more reliable
    * Add it to keyguard
    * Add a content observer to not always query Settings.System on every
    touch event

    Change-Id: I292c4d9d9f810843590b7a9ec6e15b99ac44009d
    Signed-off-by: Roman Birg <roman@cyngn.com>

Author: Adnan Begovic <adnan@cyngn.com>
Date:   Wed Nov 11 12:05:59 2015 -0800

    fw: Move DOUBLE_TAP_SLEEP_GESTURE to CMSettings.

    Change-Id: I8274b7c241cef6835a1114a702e68c95b6d2e036

Author: Zhao Wei Liew <zhaoweiliew@gmail.com>
Date:   Fri Oct 7 08:56:25 2016 +0800

    SystemUI: Use Tuner API for CM settings

    Get rid of all the excess code by implementing TunerService.Tunable
    and observing any changes made to the settings through it.

    Remove UserContentObserver as the Tuner API handles user switches.

    Also remove some unused imports that were introduced in earlier
    CM commits, but were never removed since.

    Change-Id: Iecafafabdaec82b3b3c72293bea865de48f0e90a

Author: Altaf-Mahdi <altaf.mahdi@gmail.com>
Date:   Wed Nov 11 16:07:49 2015 -0500

    Double tap to sleep anywhere on the lock screen [1/3]

    Change-Id: I7dd46f3fafeb2e629974c0f32083d4d9774fb1de
    [neo: Using Tuner API.]
    Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>

Author: dianlujitao <dianlujitao@lineageos.org>
Date:   Thu Feb 27 12:57:07 2020 +0800

    SystemUI: Don't sleep on double tap below status bar

    Change-Id: Ic64c29eae63e96f34dc37cda355401b7e2cd2d39

[Pig]: Forward port to R
[bgcngm]: Forward port to S

POSP edit: keep the lockscreen part only
           also add dozing and ambient pulsing checks

Change-Id: I0281d23cb3ad5f8f2b67d08ae431e8a962a60927

2 files changed, 41 insertions, 1 deletions

diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index 798b3e3b10b3..9b1003104c3b 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -10277,6 +10277,12 @@ public final class Settings {
                 "device_state_rotation_lock";
 
         /**
+         * Controls whether double tap to sleep is enabled.
+         * @hide
+         */
+        public static final String DOUBLE_TAP_SLEEP_GESTURE = "double_tap_sleep_gesture";
+
+        /**
          * These entries are considered common between the personal and the managed profile,
          * since the managed profile doesn't get to change them.
          */
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelViewController.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelViewController.java
index 0dda75b6bfd9..11a0c7e93488 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelViewController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelViewController.java
@@ -74,6 +74,7 @@ import android.transition.ChangeBounds;
 import android.transition.TransitionManager;
 import android.util.Log;
 import android.util.MathUtils;
+import android.view.GestureDetector;
 import android.view.LayoutInflater;
 import android.view.MotionEvent;
 import android.view.VelocityTracker;
@@ -185,6 +186,7 @@ import com.android.systemui.statusbar.policy.KeyguardStateController;
 import com.android.systemui.statusbar.policy.KeyguardUserSwitcherController;
 import com.android.systemui.statusbar.policy.KeyguardUserSwitcherView;
 import com.android.systemui.statusbar.policy.OnHeadsUpChangedListener;
+import com.android.systemui.tuner.TunerService;
 import com.android.systemui.unfold.SysUIUnfoldComponent;
 import com.android.systemui.util.Utils;
 import com.android.systemui.util.settings.SecureSettings;
@@ -277,6 +279,9 @@ public class NotificationPanelViewController extends PanelViewController {
     private static final String COUNTER_PANEL_OPEN_QS = "panel_open_qs";
     private static final String COUNTER_PANEL_OPEN_PEEK = "panel_open_peek";
 
+    private static final String DOUBLE_TAP_SLEEP_GESTURE =
+            Settings.Secure.DOUBLE_TAP_SLEEP_GESTURE;
+
     private static final Rect M_DUMMY_DIRTY_RECT = new Rect(0, 0, 1, 1);
     private static final Rect EMPTY_RECT = new Rect();
 
@@ -291,6 +296,7 @@ public class NotificationPanelViewController extends PanelViewController {
     private final AuthController mAuthController;
     private final MediaHierarchyManager mMediaHierarchyManager;
     private final StatusBarKeyguardViewManager mStatusBarKeyguardViewManager;
+    private final TunerService mTunerService;
     private final KeyguardStatusViewComponent.Factory mKeyguardStatusViewComponentFactory;
     private final KeyguardQsUserSwitchComponent.Factory mKeyguardQsUserSwitchComponentFactory;
     private final KeyguardUserSwitcherComponent.Factory mKeyguardUserSwitcherComponentFactory;
@@ -497,6 +503,8 @@ public class NotificationPanelViewController extends PanelViewController {
 
     private NotificationShadeDepthController mDepthController;
     private int mDisplayId;
+    private boolean mDoubleTapToSleepEnabled;
+    private GestureDetector mDoubleTapGesture;
 
     /**
      * Cache the resource id of the theme to avoid unnecessary work in onThemeChanged.
@@ -681,6 +689,7 @@ public class NotificationPanelViewController extends PanelViewController {
             ConversationNotificationManager conversationNotificationManager,
             MediaHierarchyManager mediaHierarchyManager,
             StatusBarKeyguardViewManager statusBarKeyguardViewManager,
+            TunerService tunerService,
             NotificationsQSContainerController notificationsQSContainerController,
             NotificationStackScrollLayoutController notificationStackScrollLayoutController,
             KeyguardStatusViewComponent.Factory keyguardStatusViewComponentFactory,
@@ -742,6 +751,7 @@ public class NotificationPanelViewController extends PanelViewController {
         mFlingAnimationUtilsBuilder = flingAnimationUtilsBuilder;
         mMediaHierarchyManager = mediaHierarchyManager;
         mStatusBarKeyguardViewManager = statusBarKeyguardViewManager;
+        mTunerService = tunerService;
         mNotificationsQSContainerController = notificationsQSContainerController;
         mNotificationsQSContainerController.init();
         mNotificationStackScrollLayoutController = notificationStackScrollLayoutController;
@@ -807,6 +817,16 @@ public class NotificationPanelViewController extends PanelViewController {
         });
         mBottomAreaShadeAlphaAnimator.setDuration(160);
         mBottomAreaShadeAlphaAnimator.setInterpolator(Interpolators.ALPHA_OUT);
+        mDoubleTapGesture = new GestureDetector(mView.getContext(),
+                new GestureDetector.SimpleOnGestureListener() {
+            @Override
+            public boolean onDoubleTap(MotionEvent e) {
+                if (mPowerManager != null) {
+                    mPowerManager.goToSleep(e.getEventTime());
+                }
+                return true;
+            }
+        });
         mLockscreenUserManager = notificationLockscreenUserManager;
         mEntryManager = notificationEntryManager;
         mConversationNotificationManager = conversationNotificationManager;
@@ -3896,6 +3916,10 @@ public class NotificationPanelViewController extends PanelViewController {
                     return false;
                 }
 
+                if (mDoubleTapToSleepEnabled && !mPulsing && !mDozing && mBarState == StatusBarState.KEYGUARD) {
+                    mDoubleTapGesture.onTouchEvent(event);
+                }
+
                 // Make sure the next touch won't the blocked after the current ends.
                 if (event.getAction() == MotionEvent.ACTION_UP
                         || event.getAction() == MotionEvent.ACTION_CANCEL) {
@@ -4566,13 +4590,15 @@ public class NotificationPanelViewController extends PanelViewController {
         positionClockAndNotifications(true /* forceUpdate */);
     }
 
-    private class OnAttachStateChangeListener implements View.OnAttachStateChangeListener {
+    private class OnAttachStateChangeListener implements View.OnAttachStateChangeListener,
+            TunerService.Tunable {
         @Override
         public void onViewAttachedToWindow(View v) {
             mFragmentService.getFragmentHostManager(mView)
                             .addTagListener(QS.TAG, mFragmentListener);
             mStatusBarStateController.addCallback(mStatusBarStateListener);
             mConfigurationController.addCallback(mConfigurationListener);
+            mTunerService.addTunable(this, DOUBLE_TAP_SLEEP_GESTURE);
             // Theme might have changed between inflating this view and attaching it to the
             // window, so
             // force a call to onThemeChanged
@@ -4590,6 +4616,14 @@ public class NotificationPanelViewController extends PanelViewController {
             mStatusBarStateController.removeCallback(mStatusBarStateListener);
             mConfigurationController.removeCallback(mConfigurationListener);
             mFalsingManager.removeTapListener(mFalsingTapListener);
+            mTunerService.removeTunable(this);
+        }
+
+        @Override
+        public void onTuningChanged(String key, String newValue) {
+            if (DOUBLE_TAP_SLEEP_GESTURE.equals(key)) {
+                mDoubleTapToSleepEnabled = TunerService.parseIntegerSwitch(newValue, true);
+            }
         }
     }