Introduce SingleKeyGestureDetector to PhoneWindowManager

The SingleKeyGestureDetector is used to detect the single key gesture
such as short press, long press or multi presses.

If the key has been handled by other policy, it should call 'reset'
to reset all gesture states.

This patch also refactor the power key and back key if the long press
behavior is enabled.

The detector can detect below gestures:
- single press
- long press
- very long press
- multiple presses (press count > 1)

Bug: 169058831
Bug: 127687575
Test: atest KeyEventTest SingleKeyGestureTests
Test: atest GlobalActionsImeTest PowerButtonTest
Test: manual (short press power, long press power, double tap power)
Change-Id: I28ff4373ba57b16e580b8eaaca26a3fa81770d0f

4 files changed, 696 insertions, 202 deletions

diff --git a/services/core/java/com/android/server/policy/KeyCombinationManager.java b/services/core/java/com/android/server/policy/KeyCombinationManager.java
index 84ac12497e71..7f55723cda0b 100644
--- a/services/core/java/com/android/server/policy/KeyCombinationManager.java
+++ b/services/core/java/com/android/server/policy/KeyCombinationManager.java
@@ -102,9 +102,11 @@ public class KeyCombinationManager {
     }
 
     /**
-     * Check if the key event could be triggered by combine key rule before dispatching to a window.
+     * Check if the key event could be intercepted by combination key rule before it is dispatched
+     * to a window.
+     * Return true if any active rule could be triggered by the key event, otherwise false.
      */
-    void interceptKey(KeyEvent event, boolean interactive) {
+    boolean interceptKey(KeyEvent event, boolean interactive) {
         final boolean down = event.getAction() == KeyEvent.ACTION_DOWN;
         final int keyCode = event.getKeyCode();
         final int count = mActiveRules.size();
@@ -117,9 +119,9 @@ public class KeyCombinationManager {
                     // exceed time from first key down.
                     forAllRules(mActiveRules, (rule)-> rule.cancel());
                     mActiveRules.clear();
-                    return;
+                    return false;
                 } else if (count == 0) { // has some key down but no active rule exist.
-                    return;
+                    return false;
                 }
             }
 
@@ -127,7 +129,7 @@ public class KeyCombinationManager {
                 mDownTimes.put(keyCode, eventTime);
             } else {
                 // ignore old key, maybe a repeat key.
-                return;
+                return false;
             }
 
             if (mDownTimes.size() == 1) {
@@ -141,7 +143,7 @@ public class KeyCombinationManager {
             } else {
                 // Ignore if rule already triggered.
                 if (mTriggeredRule != null) {
-                    return;
+                    return true;
                 }
 
                 // check if second key can trigger rule, or remove the non-match rule.
@@ -156,6 +158,7 @@ public class KeyCombinationManager {
                 mActiveRules.clear();
                 if (mTriggeredRule != null) {
                     mActiveRules.add(mTriggeredRule);
+                    return true;
                 }
             }
         } else {
@@ -168,6 +171,7 @@ public class KeyCombinationManager {
                 }
             }
         }
+        return false;
     }
 
     /**
diff --git a/services/core/java/com/android/server/policy/PhoneWindowManager.java b/services/core/java/com/android/server/policy/PhoneWindowManager.java
index c50efc70a6bc..a23ce65b6f76 100644
--- a/services/core/java/com/android/server/policy/PhoneWindowManager.java
+++ b/services/core/java/com/android/server/policy/PhoneWindowManager.java
@@ -73,6 +73,8 @@ import static android.view.WindowManagerGlobal.ADD_OKAY;
 import static android.view.WindowManagerGlobal.ADD_PERMISSION_DENIED;
 
 import static com.android.internal.config.sysui.SystemUiDeviceConfigFlags.SCREENSHOT_KEYCHORD_DELAY;
+import static com.android.server.policy.SingleKeyGestureDetector.KEY_LONGPRESS;
+import static com.android.server.policy.SingleKeyGestureDetector.KEY_VERYLONGPRESS;
 import static com.android.server.policy.WindowManagerPolicy.WindowManagerFuncs.CAMERA_LENS_COVERED;
 import static com.android.server.policy.WindowManagerPolicy.WindowManagerFuncs.CAMERA_LENS_COVER_ABSENT;
 import static com.android.server.policy.WindowManagerPolicy.WindowManagerFuncs.CAMERA_LENS_UNCOVERED;
@@ -456,7 +458,6 @@ public class PhoneWindowManager implements WindowManagerPolicy {
     volatile boolean mPowerKeyHandled;
     volatile boolean mBackKeyHandled;
     volatile boolean mBeganFromNonInteractive;
-    volatile int mPowerKeyPressCounter;
     volatile boolean mEndCallKeyHandled;
     volatile boolean mCameraGestureTriggeredDuringGoingToSleep;
     volatile boolean mGoingToSleep;
@@ -497,7 +498,6 @@ public class PhoneWindowManager implements WindowManagerPolicy {
     boolean mHasSoftInput = false;
     boolean mHapticTextHandleEnabled;
     boolean mUseTvRouting;
-    int mVeryLongPressTimeout;
     boolean mAllowStartActivityForLongPressOnPowerDuringSetup;
     MetricsLogger mLogger;
     boolean mWakeOnDpadKeyPress;
@@ -595,14 +595,13 @@ public class PhoneWindowManager implements WindowManagerPolicy {
     private final com.android.internal.policy.LogDecelerateInterpolator mLogDecelerateInterpolator
             = new LogDecelerateInterpolator(100, 0);
 
-    private final MutableBoolean mTmpBoolean = new MutableBoolean(false);
-
     private boolean mPerDisplayFocusEnabled = false;
     private volatile int mTopFocusedDisplayId = INVALID_DISPLAY;
 
     private int mPowerButtonSuppressionDelayMillis = POWER_BUTTON_SUPPRESSION_DELAY_DEFAULT_MILLIS;
 
     private KeyCombinationManager mKeyCombinationManager;
+    private SingleKeyGestureDetector mSingleKeyGestureDetector;
 
     private static final int MSG_DISPATCH_MEDIA_KEY_WITH_WAKE_LOCK = 3;
     private static final int MSG_DISPATCH_MEDIA_KEY_REPEAT_WITH_WAKE_LOCK = 4;
@@ -613,10 +612,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
     private static final int MSG_DISPATCH_SHOW_GLOBAL_ACTIONS = 10;
     private static final int MSG_HIDE_BOOT_MESSAGE = 11;
     private static final int MSG_LAUNCH_VOICE_ASSIST_WITH_WAKE_LOCK = 12;
-    private static final int MSG_POWER_DELAYED_PRESS = 13;
-    private static final int MSG_POWER_LONG_PRESS = 14;
     private static final int MSG_SHOW_PICTURE_IN_PICTURE_MENU = 15;
-    private static final int MSG_BACK_LONG_PRESS = 16;
     private static final int MSG_ACCESSIBILITY_SHORTCUT = 17;
     private static final int MSG_BUGREPORT_TV = 18;
     private static final int MSG_ACCESSIBILITY_TV = 19;
@@ -624,8 +620,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
     private static final int MSG_SYSTEM_KEY_PRESS = 21;
     private static final int MSG_HANDLE_ALL_APPS = 22;
     private static final int MSG_LAUNCH_ASSIST = 23;
-    private static final int MSG_POWER_VERY_LONG_PRESS = 25;
-    private static final int MSG_RINGER_TOGGLE_CHORD = 26;
+    private static final int MSG_RINGER_TOGGLE_CHORD = 24;
 
     private class PolicyHandler extends Handler {
         @Override
@@ -666,22 +661,9 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                 case MSG_LAUNCH_VOICE_ASSIST_WITH_WAKE_LOCK:
                     launchVoiceAssistWithWakeLock();
                     break;
-                case MSG_POWER_DELAYED_PRESS:
-                    powerPress((Long) msg.obj, msg.arg1 != 0, msg.arg2);
-                    finishPowerKeyPress();
-                    break;
-                case MSG_POWER_LONG_PRESS:
-                    powerLongPress((Long) msg.obj /* eventTime */);
-                    break;
-                case MSG_POWER_VERY_LONG_PRESS:
-                    powerVeryLongPress();
-                    break;
                 case MSG_SHOW_PICTURE_IN_PICTURE_MENU:
                     showPictureInPictureMenuInternal();
                     break;
-                case MSG_BACK_LONG_PRESS:
-                    backLongPress();
-                    break;
                 case MSG_ACCESSIBILITY_SHORTCUT:
                     accessibilityShortcutActivated();
                     break;
@@ -792,13 +774,6 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         }
     };
 
-    private Runnable mPossibleVeryLongPressReboot = new Runnable() {
-        @Override
-        public void run() {
-            mActivityManagerInternal.prepareForPossibleShutdown();
-        }
-    };
-
     private void handleRingerChordGesture() {
         if (mRingerToggleChord == VOLUME_HUSH_OFF) {
             return;
@@ -838,28 +813,13 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         }
     }
 
-    private void interceptBackKeyDown() {
-        mLogger.count("key_back_down", 1);
-        // Reset back key state for long press
-        mBackKeyHandled = false;
-
-        if (hasLongPressOnBackBehavior()) {
-            Message msg = mHandler.obtainMessage(MSG_BACK_LONG_PRESS);
-            msg.setAsynchronous(true);
-            mHandler.sendMessageDelayed(msg,
-                    ViewConfiguration.get(mContext).getDeviceGlobalActionKeyTimeout());
-        }
-    }
 
     // returns true if the key was handled and should not be passed to the user
-    private boolean interceptBackKeyUp(KeyEvent event) {
-        mLogger.count("key_back_up", 1);
+    private boolean backKeyPress() {
+        mLogger.count("key_back_press", 1);
         // Cache handled state
         boolean handled = mBackKeyHandled;
 
-        // Reset back long press state
-        cancelPendingBackKeyAction();
-
         if (mHasFeatureWatch) {
             TelecomManager telecomManager = getTelecommService();
 
@@ -881,10 +841,9 @@ public class PhoneWindowManager implements WindowManagerPolicy {
             }
         }
 
-        if (mAutofillManagerInternal != null && event.getKeyCode() == KeyEvent.KEYCODE_BACK) {
+        if (mAutofillManagerInternal != null) {
             mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_BACK_KEY_TO_AUTOFILL));
         }
-
         return handled;
     }
 
@@ -894,11 +853,6 @@ public class PhoneWindowManager implements WindowManagerPolicy {
             mPowerKeyWakeLock.acquire();
         }
 
-        // Cancel multi-press detection timeout.
-        if (mPowerKeyPressCounter != 0) {
-            mHandler.removeMessages(MSG_POWER_DELAYED_PRESS);
-        }
-
         mWindowManagerFuncs.onPowerKeyDown(interactive);
 
         // Stop ringing or end call if configured to do so when power is pressed.
@@ -920,71 +874,20 @@ public class PhoneWindowManager implements WindowManagerPolicy {
 
         final boolean handledByPowerManager = mPowerManagerInternal.interceptPowerKeyDown(event);
 
-        GestureLauncherService gestureService = LocalServices.getService(
-                GestureLauncherService.class);
-        boolean gesturedServiceIntercepted = false;
-        if (gestureService != null) {
-            gesturedServiceIntercepted = gestureService.interceptPowerKeyDown(event, interactive,
-                    mTmpBoolean);
-            if (mTmpBoolean.value && mRequestedOrGoingToSleep) {
-                mCameraGestureTriggeredDuringGoingToSleep = true;
-            }
-        }
-
         // Inform the StatusBar; but do not allow it to consume the event.
         sendSystemKeyToStatusBarAsync(event.getKeyCode());
 
-        schedulePossibleVeryLongPressReboot();
-
         // If the power key has still not yet been handled, then detect short
         // press, long press, or multi press and decide what to do.
-        mPowerKeyHandled = hungUp || gesturedServiceIntercepted
+        mPowerKeyHandled = mPowerKeyHandled || hungUp
                 || handledByPowerManager || mKeyCombinationManager.isPowerKeyIntercepted();
         if (!mPowerKeyHandled) {
-            if (interactive) {
-                // When interactive, we're already awake.
-                // Wait for a long press or for the button to be released to decide what to do.
-                if (hasLongPressOnPowerBehavior()) {
-                    if ((event.getFlags() & KeyEvent.FLAG_LONG_PRESS) != 0) {
-                        powerLongPress(event.getEventTime());
-                    } else {
-                        Message msg = mHandler.obtainMessage(MSG_POWER_LONG_PRESS,
-                                event.getEventTime());
-                        msg.setAsynchronous(true);
-                        mHandler.sendMessageDelayed(msg,
-                                ViewConfiguration.get(mContext).getDeviceGlobalActionKeyTimeout());
-
-                        if (hasVeryLongPressOnPowerBehavior()) {
-                            Message longMsg = mHandler.obtainMessage(MSG_POWER_VERY_LONG_PRESS);
-                            longMsg.setAsynchronous(true);
-                            mHandler.sendMessageDelayed(longMsg, mVeryLongPressTimeout);
-                        }
-                    }
-                }
-            } else {
+            if (!interactive) {
                 wakeUpFromPowerKey(event.getDownTime());
-
                 if (mSupportLongPressPowerWhenNonInteractive && hasLongPressOnPowerBehavior()) {
-                    if ((event.getFlags() & KeyEvent.FLAG_LONG_PRESS) != 0) {
-                        powerLongPress(event.getEventTime());
-                    } else {
-                        Message msg = mHandler.obtainMessage(MSG_POWER_LONG_PRESS,
-                                event.getEventTime());
-                        msg.setAsynchronous(true);
-                        mHandler.sendMessageDelayed(msg,
-                                ViewConfiguration.get(mContext).getDeviceGlobalActionKeyTimeout());
-
-                        if (hasVeryLongPressOnPowerBehavior()) {
-                            Message longMsg = mHandler.obtainMessage(MSG_POWER_VERY_LONG_PRESS);
-                            longMsg.setAsynchronous(true);
-                            mHandler.sendMessageDelayed(longMsg, mVeryLongPressTimeout);
-                        }
-                    }
-
                     mBeganFromNonInteractive = true;
                 } else {
                     final int maxCount = getMaxMultiPressPowerCount();
-
                     if (maxCount <= 1) {
                         mPowerKeyHandled = true;
                     } else {
@@ -992,68 +895,37 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                     }
                 }
             }
+        } else {
+            // handled by another power key policy.
+            if (!mSingleKeyGestureDetector.isKeyIntercepted(KEYCODE_POWER)) {
+                mSingleKeyGestureDetector.reset();
+            }
         }
     }
 
     private void interceptPowerKeyUp(KeyEvent event, boolean interactive, boolean canceled) {
         final boolean handled = canceled || mPowerKeyHandled;
-        cancelPendingPowerKeyAction();
 
         if (!handled) {
             if ((event.getFlags() & KeyEvent.FLAG_LONG_PRESS) == 0) {
                 // Abort possibly stuck animations only when power key up without long press case.
                 mHandler.post(mWindowManagerFuncs::triggerAnimationFailsafe);
             }
-
-            // Figure out how to handle the key now that it has been released.
-            mPowerKeyPressCounter += 1;
-
-            final int maxCount = getMaxMultiPressPowerCount();
-            final long eventTime = event.getDownTime();
-            if (mPowerKeyPressCounter < maxCount) {
-                // This could be a multi-press.  Wait a little bit longer to confirm.
-                // Continue holding the wake lock.
-                Message msg = mHandler.obtainMessage(MSG_POWER_DELAYED_PRESS,
-                        interactive ? 1 : 0, mPowerKeyPressCounter, eventTime);
-                msg.setAsynchronous(true);
-                mHandler.sendMessageDelayed(msg, ViewConfiguration.getMultiPressTimeout());
-                return;
-            }
-
-            // No other actions.  Handle it immediately.
-            powerPress(eventTime, interactive, mPowerKeyPressCounter);
+        } else {
+            // handled by single key or another power key policy.
+            mSingleKeyGestureDetector.reset();
+            finishPowerKeyPress();
         }
-
-        // Done.  Reset our state.
-        finishPowerKeyPress();
     }
 
     private void finishPowerKeyPress() {
         mBeganFromNonInteractive = false;
-        mPowerKeyPressCounter = 0;
+        mPowerKeyHandled = false;
         if (mPowerKeyWakeLock.isHeld()) {
             mPowerKeyWakeLock.release();
         }
     }
 
-    private void cancelPendingPowerKeyAction() {
-        if (!mPowerKeyHandled) {
-            mPowerKeyHandled = true;
-            mHandler.removeMessages(MSG_POWER_LONG_PRESS);
-        }
-        if (hasVeryLongPressOnPowerBehavior()) {
-            mHandler.removeMessages(MSG_POWER_VERY_LONG_PRESS);
-        }
-        cancelPossibleVeryLongPressReboot();
-    }
-
-    private void cancelPendingBackKeyAction() {
-        if (!mBackKeyHandled) {
-            mBackKeyHandled = true;
-            mHandler.removeMessages(MSG_BACK_LONG_PRESS);
-        }
-    }
-
     private void powerPress(long eventTime, boolean interactive, int count) {
         if (mDefaultDisplayPolicy.isScreenOnEarly() && !mDefaultDisplayPolicy.isScreenOnFully()) {
             Slog.i(TAG, "Suppressed redundant power key press while "
@@ -1204,6 +1076,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
 
     private void powerLongPress(long eventTime) {
         final int behavior = getResolvedLongPressOnPowerBehavior();
+
         switch (behavior) {
             case LONG_PRESS_POWER_NOTHING:
                 break;
@@ -1211,7 +1084,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                 mPowerKeyHandled = true;
                 performHapticFeedback(HapticFeedbackConstants.LONG_PRESS, false,
                         "Power - Long Press - Global Actions");
-                showGlobalActionsInternal();
+                showGlobalActions();
                 break;
             case LONG_PRESS_POWER_SHUT_OFF:
             case LONG_PRESS_POWER_SHUT_OFF_NO_CONFIRM:
@@ -1242,14 +1115,14 @@ public class PhoneWindowManager implements WindowManagerPolicy {
 
     private void powerVeryLongPress() {
         switch (mVeryLongPressOnPowerBehavior) {
-        case VERY_LONG_PRESS_POWER_NOTHING:
-            break;
-        case VERY_LONG_PRESS_POWER_GLOBAL_ACTIONS:
-            mPowerKeyHandled = true;
-            performHapticFeedback(HapticFeedbackConstants.LONG_PRESS, false,
-                    "Power - Very Long Press - Show Global Actions");
-            showGlobalActionsInternal();
-            break;
+            case VERY_LONG_PRESS_POWER_NOTHING:
+                break;
+            case VERY_LONG_PRESS_POWER_GLOBAL_ACTIONS:
+                mPowerKeyHandled = true;
+                performHapticFeedback(HapticFeedbackConstants.LONG_PRESS, false,
+                        "Power - Very Long Press - Show Global Actions");
+                showGlobalActions();
+                break;
         }
     }
 
@@ -1842,8 +1715,6 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                 com.android.internal.R.integer.config_triplePressOnPowerBehavior);
         mShortPressOnSleepBehavior = mContext.getResources().getInteger(
                 com.android.internal.R.integer.config_shortPressOnSleepBehavior);
-        mVeryLongPressTimeout = mContext.getResources().getInteger(
-                com.android.internal.R.integer.config_veryLongPressTimeout);
         mAllowStartActivityForLongPressOnPowerDuringSetup = mContext.getResources().getBoolean(
                 com.android.internal.R.bool.config_allowStartActivityForLongPressOnPowerInSetup);
 
@@ -1937,6 +1808,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                     }
                 });
         initKeyCombinationRules();
+        initSingleKeyGestureRules();
     }
 
     private void initKeyCombinationRules() {
@@ -1949,7 +1821,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                     new TwoKeysCombinationRule(KEYCODE_VOLUME_DOWN, KEYCODE_POWER) {
                         @Override
                         void execute() {
-                            cancelPendingPowerKeyAction();
+                            mPowerKeyHandled = true;
                             interceptScreenshotChord();
                         }
                         @Override
@@ -1984,7 +1856,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                     }
                     @Override
                     void execute() {
-                        cancelPendingPowerKeyAction();
+                        mPowerKeyHandled = true;
                         interceptRingerToggleChord();
                     }
                     @Override
@@ -1998,7 +1870,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                     new TwoKeysCombinationRule(KEYCODE_BACK, KEYCODE_DPAD_DOWN) {
                         @Override
                         void execute() {
-                            cancelPendingBackKeyAction();
+                            mBackKeyHandled = true;
                             interceptAccessibilityGestureTv();
                         }
 
@@ -2012,7 +1884,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                     new TwoKeysCombinationRule(KEYCODE_DPAD_CENTER, KEYCODE_BACK) {
                         @Override
                         void execute() {
-                            cancelPendingBackKeyAction();
+                            mBackKeyHandled = true;
                             interceptBugreportGestureTv();
                         }
 
@@ -2025,6 +1897,84 @@ public class PhoneWindowManager implements WindowManagerPolicy {
     }
 
     /**
+     * Rule for single power key gesture.
+     */
+    private final class PowerKeyRule extends SingleKeyGestureDetector.SingleKeyRule {
+        PowerKeyRule(int gestures) {
+            super(KEYCODE_POWER, gestures);
+        }
+
+        @Override
+        int getMaxMultiPressCount() {
+            return getMaxMultiPressPowerCount();
+        }
+
+        @Override
+        void onPress(long downTime) {
+            powerPress(downTime, true, 1 /*count*/);
+            finishPowerKeyPress();
+        }
+
+        @Override
+        void onLongPress(long eventTime) {
+            powerLongPress(eventTime);
+        }
+
+        @Override
+        void onVeryLongPress(long eventTime) {
+            mActivityManagerInternal.prepareForPossibleShutdown();
+            powerVeryLongPress();
+        }
+
+        @Override
+        void onMultiPress(long downTime, int count) {
+            powerPress(downTime, true, count);
+            finishPowerKeyPress();
+        }
+    }
+
+    /**
+     * Rule for single back key gesture.
+     */
+    private final class BackKeyRule extends SingleKeyGestureDetector.SingleKeyRule {
+        BackKeyRule(int gestures) {
+            super(KEYCODE_BACK, gestures);
+        }
+
+        @Override
+        int getMaxMultiPressCount() {
+            return 1;
+        }
+
+        @Override
+        void onPress(long downTime) {
+            mBackKeyHandled |= backKeyPress();
+        }
+
+        @Override
+        void onLongPress(long downTime) {
+            backLongPress();
+        }
+    }
+
+    private void initSingleKeyGestureRules() {
+        mSingleKeyGestureDetector = new SingleKeyGestureDetector(mContext);
+
+        int powerKeyGestures = 0;
+        if (hasVeryLongPressOnPowerBehavior()) {
+            powerKeyGestures |= KEY_VERYLONGPRESS;
+        }
+        if (hasLongPressOnPowerBehavior()) {
+            powerKeyGestures |= KEY_LONGPRESS;
+        }
+        mSingleKeyGestureDetector.addRule(new PowerKeyRule(powerKeyGestures));
+
+        if (hasLongPressOnBackBehavior()) {
+            mSingleKeyGestureDetector.addRule(new BackKeyRule(KEY_LONGPRESS));
+        }
+    }
+
+    /**
      * Read values from config.xml that may be overridden depending on
      * the configuration of the device.
      * eg. Disable long press on home goes to recents on sw600dp.
@@ -3568,8 +3518,21 @@ public class PhoneWindowManager implements WindowManagerPolicy {
             return result;
         }
 
+        // Alternate TV power to power key for Android TV device.
+        final HdmiControlManager hdmiControlManager = getHdmiControlManager();
+        if (keyCode == KeyEvent.KEYCODE_TV_POWER && mHasFeatureLeanback
+                && (hdmiControlManager == null || !hdmiControlManager.shouldHandleTvPowerKey())) {
+            event = KeyEvent.obtain(
+                    event.getDownTime(), event.getEventTime(),
+                    event.getAction(), KeyEvent.KEYCODE_POWER,
+                    event.getRepeatCount(), event.getMetaState(),
+                    event.getDeviceId(), event.getScanCode(),
+                    event.getFlags(), event.getSource(), event.getDisplayId(), null);
+            return interceptKeyBeforeQueueing(event, policyFlags);
+        }
+
         if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) {
-            mKeyCombinationManager.interceptKey(event, interactive);
+            handleKeyGesture(event, interactive);
         }
 
         // Enable haptics if down and virtual key without multiple repetitions. If this is a hard
@@ -3584,12 +3547,13 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         switch (keyCode) {
             case KeyEvent.KEYCODE_BACK: {
                 if (down) {
-                    interceptBackKeyDown();
+                    mBackKeyHandled = false;
                 } else {
-                    boolean handled = interceptBackKeyUp(event);
-
+                    if (!hasLongPressOnBackBehavior()) {
+                        mBackKeyHandled |= backKeyPress();
+                    }
                     // Don't pass back press to app if we've already handled it via long press
-                    if (handled) {
+                    if (mBackKeyHandled) {
                         result &= ~ACTION_PASS_TO_USER;
                     }
                 }
@@ -3701,33 +3665,17 @@ public class PhoneWindowManager implements WindowManagerPolicy {
             case KeyEvent.KEYCODE_TV_POWER: {
                 result &= ~ACTION_PASS_TO_USER;
                 isWakeKey = false; // wake-up will be handled separately
-                HdmiControlManager hdmiControlManager = getHdmiControlManager();
-                if (hdmiControlManager != null && hdmiControlManager.shouldHandleTvPowerKey()) {
-                    if (down) {
-                        hdmiControlManager.toggleAndFollowTvPower();
-                    }
-                } else if (mHasFeatureLeanback) {
-                    KeyEvent fallbackEvent = KeyEvent.obtain(
-                            event.getDownTime(), event.getEventTime(),
-                            event.getAction(), KeyEvent.KEYCODE_POWER,
-                            event.getRepeatCount(), event.getMetaState(),
-                            event.getDeviceId(), event.getScanCode(),
-                            event.getFlags(), event.getSource(), event.getDisplayId(), null);
-                    if (down) {
-                        interceptPowerKeyDown(fallbackEvent, interactive);
-                    } else {
-                        interceptPowerKeyUp(fallbackEvent, interactive, canceled);
-                    }
+                if (down && hdmiControlManager != null) {
+                    hdmiControlManager.toggleAndFollowTvPower();
                 }
-                // Ignore this key for any device that is not connected to a TV via HDMI and
-                // not an Android TV device.
                 break;
             }
 
             case KeyEvent.KEYCODE_POWER: {
                 EventLogTags.writeInterceptPower(
                         KeyEvent.actionToString(event.getAction()),
-                        mPowerKeyHandled ? 1 : 0, mPowerKeyPressCounter);
+                        mPowerKeyHandled ? 1 : 0,
+                        mSingleKeyGestureDetector.getKeyPressCounter(KeyEvent.KEYCODE_POWER));
                 // Any activity on the power button stops the accessibility shortcut
                 result &= ~ACTION_PASS_TO_USER;
                 isWakeKey = false; // wake-up will be handled separately
@@ -3908,6 +3856,43 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         return result;
     }
 
+    private void handleKeyGesture(KeyEvent event, boolean interactive) {
+        if (mKeyCombinationManager.interceptKey(event, interactive)) {
+            // handled by combo keys manager.
+            mSingleKeyGestureDetector.reset();
+            return;
+        }
+
+        if (event.getKeyCode() == KEYCODE_POWER && event.getAction() == KeyEvent.ACTION_DOWN) {
+            mPowerKeyHandled = handleCameraGesture(event, interactive);
+            if (mPowerKeyHandled) {
+                // handled by camera gesture.
+                mSingleKeyGestureDetector.reset();
+                return;
+            }
+        }
+
+        mSingleKeyGestureDetector.interceptKey(event);
+    }
+
+    // The camera gesture will be detected by GestureLauncherService.
+    private boolean handleCameraGesture(KeyEvent event, boolean interactive) {
+        // camera gesture.
+        GestureLauncherService gestureService = LocalServices.getService(
+                GestureLauncherService.class);
+        if (gestureService == null) {
+            return false;
+        }
+
+        final MutableBoolean outLaunched = new MutableBoolean(false);
+        final boolean gesturedServiceIntercepted = gestureService.interceptPowerKeyDown(event,
+                interactive, outLaunched);
+        if (outLaunched.value && mRequestedOrGoingToSleep) {
+            mCameraGestureTriggeredDuringGoingToSleep = true;
+        }
+        return gesturedServiceIntercepted;
+    }
+
     /**
      * Handle statusbar expansion events.
      * @param event
@@ -4907,15 +4892,6 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         }
     }
 
-    private void schedulePossibleVeryLongPressReboot() {
-        mHandler.removeCallbacks(mPossibleVeryLongPressReboot);
-        mHandler.postDelayed(mPossibleVeryLongPressReboot, mVeryLongPressTimeout);
-    }
-
-    private void cancelPossibleVeryLongPressReboot() {
-        mHandler.removeCallbacks(mPossibleVeryLongPressReboot);
-    }
-
     // TODO (multidisplay): Support multiple displays in WindowManagerPolicy.
     private void updateScreenOffSleepToken(boolean acquire) {
         if (acquire) {
diff --git a/services/core/java/com/android/server/policy/SingleKeyGestureDetector.java b/services/core/java/com/android/server/policy/SingleKeyGestureDetector.java
new file mode 100644
index 000000000000..cae209353361
--- /dev/null
+++ b/services/core/java/com/android/server/policy/SingleKeyGestureDetector.java
@@ -0,0 +1,362 @@
+/*
+ * Copyright (C) 2021 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.server.policy;
+
+import android.annotation.IntDef;
+import android.content.Context;
+import android.os.Handler;
+import android.os.Looper;
+import android.os.Message;
+import android.util.Log;
+import android.view.KeyEvent;
+import android.view.ViewConfiguration;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.util.ArrayList;
+
+/**
+ * Detect single key gesture: press, long press, very long press and multi press.
+ *
+ * Call {@link #reset} if current {@link KeyEvent} has been handled by another policy
+ */
+
+public final class SingleKeyGestureDetector {
+    private static final String TAG = "SingleKeyGesture";
+    private static final boolean DEBUG = false;
+
+    private static final int MSG_KEY_LONG_PRESS = 0;
+    private static final int MSG_KEY_VERY_LONG_PRESS = 1;
+    private static final int MSG_KEY_DELAYED_PRESS = 2;
+
+    private final long mLongPressTimeout;
+    private final long mVeryLongPressTimeout;
+
+    private volatile int mKeyPressCounter;
+
+    private final ArrayList<SingleKeyRule> mRules = new ArrayList();
+    private SingleKeyRule mActiveRule = null;
+
+    // Key code of current key down event, reset when key up.
+    private int mDownKeyCode = KeyEvent.KEYCODE_UNKNOWN;
+    private volatile boolean mHandledByLongPress = false;
+    private final Handler mHandler;
+    private static final long MULTI_PRESS_TIMEOUT = ViewConfiguration.getMultiPressTimeout();
+
+
+    /** Supported gesture flags */
+    public static final int KEY_LONGPRESS = 1 << 1;
+    public static final int KEY_VERYLONGPRESS = 1 << 2;
+
+    /** @hide */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef(prefix = { "KEY_" }, value = {
+            KEY_LONGPRESS,
+            KEY_VERYLONGPRESS,
+    })
+    public @interface KeyGestureFlag {}
+
+    /**
+     *  Rule definition for single keys gesture.
+     *  E.g : define power key.
+     *  <pre class="prettyprint">
+     *  SingleKeyRule rule =
+     *      new SingleKeyRule(KEYCODE_POWER, KEY_LONGPRESS|KEY_VERYLONGPRESS) {
+     *           int getMaxMultiPressCount() { // maximum multi press count. }
+     *           void onPress(long downTime) { // short press behavior. }
+     *           void onLongPress(long eventTime) { // long press behavior. }
+     *           void onVeryLongPress(long eventTime) { // very long press behavior. }
+     *           void onMultiPress(long downTime, int count) { // multi press behavior.  }
+     *       };
+     *  </pre>
+     */
+    abstract static class SingleKeyRule {
+        private final int mKeyCode;
+        private final int mSupportedGestures;
+
+        SingleKeyRule(int keyCode, @KeyGestureFlag int supportedGestures) {
+            mKeyCode = keyCode;
+            mSupportedGestures = supportedGestures;
+        }
+
+        /**
+         *  True if the rule could intercept the key.
+         */
+        private boolean shouldInterceptKey(int keyCode) {
+            return keyCode == mKeyCode;
+        }
+
+        /**
+         *  True if the rule support long press.
+         */
+        private boolean supportLongPress() {
+            return (mSupportedGestures & KEY_LONGPRESS) != 0;
+        }
+
+        /**
+         *  True if the rule support very long press.
+         */
+        private boolean supportVeryLongPress() {
+            return (mSupportedGestures & KEY_VERYLONGPRESS) != 0;
+        }
+
+        /**
+         *  Maximum count of multi presses.
+         *  Return 1 will trigger onPress immediately when {@link KeyEvent.ACTION_UP}.
+         *  Otherwise trigger onMultiPress immediately when reach max count when
+         *  {@link KeyEvent.ACTION_DOWN}.
+         */
+        int getMaxMultiPressCount() {
+            return 1;
+        }
+
+        /**
+         *  Called when short press has been detected.
+         */
+        abstract void onPress(long downTime);
+        /**
+         *  Callback when multi press (>= 2) has been detected.
+         */
+        void onMultiPress(long downTime, int count) {}
+        /**
+         *  Callback when long press has been detected.
+         */
+        void onLongPress(long eventTime) {}
+        /**
+         *  Callback when very long press has been detected.
+         */
+        void onVeryLongPress(long eventTime) {}
+
+        @Override
+        public String toString() {
+            return "KeyCode = " + KeyEvent.keyCodeToString(mKeyCode)
+                    + ", long press : " + supportLongPress()
+                    + ", very Long press : " + supportVeryLongPress()
+                    + ", max multi press count : " + getMaxMultiPressCount();
+        }
+    }
+
+    public SingleKeyGestureDetector(Context context) {
+        mLongPressTimeout = ViewConfiguration.get(context).getDeviceGlobalActionKeyTimeout();
+        mVeryLongPressTimeout = context.getResources().getInteger(
+                com.android.internal.R.integer.config_veryLongPressTimeout);
+        mHandler = new KeyHandler();
+    }
+
+    void addRule(SingleKeyRule rule) {
+        mRules.add(rule);
+    }
+
+    void interceptKey(KeyEvent event) {
+        if (event.getAction() == KeyEvent.ACTION_DOWN) {
+            interceptKeyDown(event);
+        } else {
+            interceptKeyUp(event);
+        }
+    }
+
+    private void interceptKeyDown(KeyEvent event) {
+        final int keyCode = event.getKeyCode();
+        // same key down.
+        if (mDownKeyCode == keyCode) {
+            if (mActiveRule != null && (event.getFlags() & KeyEvent.FLAG_LONG_PRESS) != 0
+                    && mActiveRule.supportLongPress() && !mHandledByLongPress) {
+                if (DEBUG) {
+                    Log.i(TAG, "Long press key " + KeyEvent.keyCodeToString(keyCode));
+                }
+                mHandledByLongPress = true;
+                mHandler.removeMessages(MSG_KEY_LONG_PRESS);
+                mHandler.removeMessages(MSG_KEY_VERY_LONG_PRESS);
+                mActiveRule.onLongPress(event.getEventTime());
+            }
+            return;
+        }
+
+        // When a different key is pressed, stop processing gestures for the currently active key.
+        if (mDownKeyCode != KeyEvent.KEYCODE_UNKNOWN
+                || (mActiveRule != null && !mActiveRule.shouldInterceptKey(keyCode))) {
+            if (DEBUG) {
+                Log.i(TAG, "Press another key " + KeyEvent.keyCodeToString(keyCode));
+            }
+            reset();
+        }
+        mDownKeyCode = keyCode;
+
+        // Picks a new rule, return if no rule picked.
+        if (mActiveRule == null) {
+            final int count = mRules.size();
+            for (int index = 0; index < count; index++) {
+                final SingleKeyRule rule = mRules.get(index);
+                if (rule.shouldInterceptKey(keyCode)) {
+                    if (DEBUG) {
+                        Log.i(TAG, "Intercept key by rule " + rule);
+                    }
+                    mActiveRule = rule;
+                    break;
+                }
+            }
+        }
+        if (mActiveRule == null) {
+            return;
+        }
+
+        final long eventTime = event.getEventTime();
+        if (mKeyPressCounter == 0) {
+            if (mActiveRule.supportLongPress()) {
+                final Message msg = mHandler.obtainMessage(MSG_KEY_LONG_PRESS, keyCode, 0,
+                        eventTime);
+                msg.setAsynchronous(true);
+                mHandler.sendMessageDelayed(msg, mLongPressTimeout);
+            }
+
+            if (mActiveRule.supportVeryLongPress()) {
+                final Message msg = mHandler.obtainMessage(MSG_KEY_VERY_LONG_PRESS, keyCode, 0,
+                        eventTime);
+                msg.setAsynchronous(true);
+                mHandler.sendMessageDelayed(msg, mVeryLongPressTimeout);
+            }
+        } else {
+            mHandler.removeMessages(MSG_KEY_LONG_PRESS);
+            mHandler.removeMessages(MSG_KEY_VERY_LONG_PRESS);
+            mHandler.removeMessages(MSG_KEY_DELAYED_PRESS);
+
+            // Trigger multi press immediately when reach max count.( > 1)
+            if (mKeyPressCounter == mActiveRule.getMaxMultiPressCount() - 1) {
+                if (DEBUG) {
+                    Log.i(TAG, "Trigger multi press " + mActiveRule.toString() + " for it"
+                            + " reach the max count " + mKeyPressCounter);
+                }
+                mActiveRule.onMultiPress(eventTime, mKeyPressCounter + 1);
+                mKeyPressCounter = 0;
+            }
+        }
+    }
+
+    private boolean interceptKeyUp(KeyEvent event) {
+        mHandler.removeMessages(MSG_KEY_LONG_PRESS);
+        mHandler.removeMessages(MSG_KEY_VERY_LONG_PRESS);
+        mDownKeyCode = KeyEvent.KEYCODE_UNKNOWN;
+        if (mActiveRule == null) {
+            return false;
+        }
+
+        if (mHandledByLongPress) {
+            mHandledByLongPress = false;
+            mKeyPressCounter = 0;
+            return true;
+        }
+
+        final long downTime = event.getDownTime();
+        if (event.getKeyCode() == mActiveRule.mKeyCode) {
+            // Directly trigger short press when max count is 1.
+            if (mActiveRule.getMaxMultiPressCount() == 1) {
+                if (DEBUG) {
+                    Log.i(TAG, "press key " + KeyEvent.keyCodeToString(event.getKeyCode()));
+                }
+                mActiveRule.onPress(downTime);
+                return true;
+            }
+
+            // This could be a multi-press.  Wait a little bit longer to confirm.
+            mKeyPressCounter++;
+            Message msg = mHandler.obtainMessage(MSG_KEY_DELAYED_PRESS, mActiveRule.mKeyCode,
+                    mKeyPressCounter, downTime);
+            msg.setAsynchronous(true);
+            mHandler.sendMessageDelayed(msg, MULTI_PRESS_TIMEOUT);
+            return true;
+        }
+        reset();
+        return false;
+    }
+
+    int getKeyPressCounter(int keyCode) {
+        if (mActiveRule != null && mActiveRule.mKeyCode == keyCode) {
+            return mKeyPressCounter;
+        } else {
+            return 0;
+        }
+    }
+
+    void reset() {
+        if (mActiveRule != null) {
+            if (mDownKeyCode != KeyEvent.KEYCODE_UNKNOWN) {
+                mHandler.removeMessages(MSG_KEY_LONG_PRESS);
+                mHandler.removeMessages(MSG_KEY_VERY_LONG_PRESS);
+            }
+
+            if (mKeyPressCounter > 0) {
+                mHandler.removeMessages(MSG_KEY_DELAYED_PRESS);
+                mKeyPressCounter = 0;
+            }
+            mActiveRule = null;
+        }
+
+        mHandledByLongPress = false;
+        mDownKeyCode = KeyEvent.KEYCODE_UNKNOWN;
+    }
+
+    boolean isKeyIntercepted(int keyCode) {
+        if (mActiveRule != null && mActiveRule.shouldInterceptKey(keyCode)) {
+            return mHandledByLongPress;
+        }
+        return false;
+    }
+
+    private class KeyHandler extends Handler {
+        KeyHandler() {
+            super(Looper.getMainLooper());
+        }
+
+        @Override
+        public void handleMessage(Message msg) {
+            if (mActiveRule == null) {
+                return;
+            }
+            final int keyCode = msg.arg1;
+            final long eventTime = (long) msg.obj;
+            switch(msg.what) {
+                case MSG_KEY_LONG_PRESS:
+                    if (DEBUG) {
+                        Log.i(TAG, "Detect long press " + KeyEvent.keyCodeToString(keyCode));
+                    }
+                    mHandledByLongPress = true;
+                    mActiveRule.onLongPress(eventTime);
+                    break;
+                case MSG_KEY_VERY_LONG_PRESS:
+                    if (DEBUG) {
+                        Log.i(TAG, "Detect very long press "
+                                + KeyEvent.keyCodeToString(keyCode));
+                    }
+                    mHandledByLongPress = true;
+                    mActiveRule.onVeryLongPress(eventTime);
+                    break;
+                case MSG_KEY_DELAYED_PRESS:
+                    if (DEBUG) {
+                        Log.i(TAG, "Detect press " + KeyEvent.keyCodeToString(keyCode)
+                                + ", count " + mKeyPressCounter);
+                    }
+                    if (mKeyPressCounter == 1) {
+                        mActiveRule.onPress(eventTime);
+                    } else {
+                        mActiveRule.onMultiPress(eventTime, mKeyPressCounter);
+                    }
+                    mKeyPressCounter = 0;
+                    break;
+            }
+        }
+    }
+}
diff --git a/services/tests/wmtests/src/com/android/server/policy/SingleKeyGestureTests.java b/services/tests/wmtests/src/com/android/server/policy/SingleKeyGestureTests.java
new file mode 100644
index 000000000000..3025a95be98c
--- /dev/null
+++ b/services/tests/wmtests/src/com/android/server/policy/SingleKeyGestureTests.java
@@ -0,0 +1,152 @@
+/*
+ * Copyright (C) 2021 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.server.policy;
+
+import static android.view.KeyEvent.ACTION_DOWN;
+import static android.view.KeyEvent.ACTION_UP;
+import static android.view.KeyEvent.KEYCODE_POWER;
+
+import static androidx.test.platform.app.InstrumentationRegistry.getInstrumentation;
+
+import static com.android.server.policy.SingleKeyGestureDetector.KEY_LONGPRESS;
+import static com.android.server.policy.SingleKeyGestureDetector.KEY_VERYLONGPRESS;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import android.app.Instrumentation;
+import android.content.Context;
+import android.os.SystemClock;
+import android.view.KeyEvent;
+import android.view.ViewConfiguration;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Test class for {@link SingleKeyGestureDetector}.
+ *
+ * Build/Install/Run:
+ *  atest WmTests:SingleKeyGestureTests
+ */
+public class SingleKeyGestureTests {
+    private SingleKeyGestureDetector mDetector;
+
+    private int mMaxMultiPressPowerCount = 2;
+
+    private CountDownLatch mShortPressed = new CountDownLatch(1);
+    private CountDownLatch mLongPressed = new CountDownLatch(1);
+    private CountDownLatch mVeryLongPressed = new CountDownLatch(1);
+    private CountDownLatch mMultiPressed = new CountDownLatch(1);
+
+    private final Instrumentation mInstrumentation = getInstrumentation();
+    private final Context mContext = mInstrumentation.getTargetContext();
+    private long mWaitTimeout;
+    private long mLongPressTime;
+    private long mVeryLongPressTime;
+
+    @Before
+    public void setUp() {
+        mDetector = new SingleKeyGestureDetector(mContext);
+        initSingleKeyGestureRules();
+        mWaitTimeout = ViewConfiguration.getMultiPressTimeout() + 50;
+        mLongPressTime = ViewConfiguration.get(mContext).getDeviceGlobalActionKeyTimeout() + 50;
+        mVeryLongPressTime = mContext.getResources().getInteger(
+                com.android.internal.R.integer.config_veryLongPressTimeout) + 50;
+    }
+
+    private void initSingleKeyGestureRules() {
+        mDetector.addRule(new SingleKeyGestureDetector.SingleKeyRule(KEYCODE_POWER,
+                KEY_LONGPRESS | KEY_VERYLONGPRESS) {
+            @Override
+            int getMaxMultiPressCount() {
+                return mMaxMultiPressPowerCount;
+            }
+            @Override
+            public void onPress(long downTime) {
+                mShortPressed.countDown();
+            }
+
+            @Override
+            void onLongPress(long downTime) {
+                mLongPressed.countDown();
+            }
+
+            @Override
+            void onVeryLongPress(long downTime) {
+                mVeryLongPressed.countDown();
+            }
+
+            @Override
+            void onMultiPress(long downTime, int count) {
+                mMultiPressed.countDown();
+                assertEquals(mMaxMultiPressPowerCount, count);
+            }
+        });
+    }
+
+    private void pressKey(long eventTime, int keyCode, long pressTime) {
+        final KeyEvent keyDown = new KeyEvent(eventTime, eventTime, ACTION_DOWN,
+                keyCode, 0 /* repeat */, 0 /* metaState */);
+        mDetector.interceptKey(keyDown);
+
+        // keep press down.
+        try {
+            Thread.sleep(pressTime);
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+
+        eventTime += pressTime;
+        final KeyEvent keyUp = new KeyEvent(eventTime, eventTime, ACTION_UP,
+                keyCode, 0 /* repeat */, 0 /* metaState */);
+
+        mDetector.interceptKey(keyUp);
+    }
+
+    @Test
+    public void testShortPress() throws InterruptedException {
+        final long eventTime = SystemClock.uptimeMillis();
+        pressKey(eventTime, KEYCODE_POWER, 0 /* pressTime */);
+        assertTrue(mShortPressed.await(mWaitTimeout, TimeUnit.MILLISECONDS));
+    }
+
+    @Test
+    public void testLongPress() throws InterruptedException {
+        final long eventTime = SystemClock.uptimeMillis();
+        pressKey(eventTime, KEYCODE_POWER, mLongPressTime);
+        assertTrue(mLongPressed.await(mWaitTimeout, TimeUnit.MILLISECONDS));
+    }
+
+    @Test
+    public void testVeryLongPress() throws InterruptedException {
+        final long eventTime = SystemClock.uptimeMillis();
+        pressKey(eventTime, KEYCODE_POWER, mVeryLongPressTime);
+        assertTrue(mVeryLongPressed.await(mWaitTimeout, TimeUnit.MILLISECONDS));
+    }
+
+    @Test
+    public void testMultiPress() throws InterruptedException {
+        final long eventTime = SystemClock.uptimeMillis();
+        pressKey(eventTime, KEYCODE_POWER, 0 /* pressTime */);
+        pressKey(eventTime, KEYCODE_POWER, 0 /* pressTime */);
+        assertTrue(mMultiPressed.await(mWaitTimeout, TimeUnit.MILLISECONDS));
+    }
+}