SysUI: Log lockscreen gestures

Log the following lockscreen gestures:
 * Swipe up to unlock
 * Swipe down to enter full shade
 * Tap in empty area (causing unlock hint)
 * Swipe to camera
 * Swipe to dialer
 * Tap on lock to lock device
 * Tap on notification, activating it

For swipe gestures, includes length and velocity where available.

Bug: 18767135
Change-Id: Ib2c535e3a9d2b378f5a2a0a00c2be3fd916554ac

packages/SystemUI/src/com/android/systemui/EventLogConstants.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2014 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;
+
+/**
+ * Constants to be passed as sysui_* eventlog parameters.
+ */
+public class EventLogConstants {
+    /** The user swiped up on the lockscreen, unlocking the device. */
+    public static final int SYSUI_LOCKSCREEN_GESTURE_SWIPE_UP_UNLOCK = 1;
+    /** The user swiped down on the lockscreen, going to the full shade. */
+    public static final int SYSUI_LOCKSCREEN_GESTURE_SWIPE_DOWN_FULL_SHADE = 2;
+    /** The user tapped in an empty area, causing the unlock hint to be shown. */
+    public static final int SYSUI_LOCKSCREEN_GESTURE_TAP_UNLOCK_HINT = 3;
+    /** The user swiped inward on the camera icon, launching the camera. */
+    public static final int SYSUI_LOCKSCREEN_GESTURE_SWIPE_CAMERA = 4;
+    /** The user swiped inward on the dialer icon, launching the dialer. */
+    public static final int SYSUI_LOCKSCREEN_GESTURE_SWIPE_DIALER = 5;
+    /** The user tapped the lock, locking the device. */
+    public static final int SYSUI_LOCKSCREEN_GESTURE_TAP_LOCK = 6;
+    /** The user tapped a notification, needs to tap again to launch. */
+    public static final int SYSUI_LOCKSCREEN_GESTURE_TAP_NOTIFICATION_ACTIVATE = 7;
+}

packages/SystemUI/src/com/android/systemui/EventLogTags.logtags

@@ -27,6 +27,15 @@ option java_package com.android.systemui;
 # NotificationPanelView.java
 # ---------------------------
 36020 sysui_notificationpanel_touch (type|1),(x|1),(y|1)
+## type: 1: SWIPE_UP_UNLOCK           Swiped up to dismiss the lockscreen.
+##       2: SWIPE_DOWN_FULL_SHADE     Swiped down to enter full shade.
+##       3: TAP_UNLOCK_HINT           Tapped in empty area, causes unlock hint.
+##       4: SWIPE_CAMERA              Swiped the camera icon, launches.
+##       5: SWIPE_DIALER              Swiped the dialer icon, launches.
+##       6: TAP_LOCK                  Tapped the (unlocked) lock icon, locks the device.
+##       7: TAP_NOTIFICATION_ACTIVATE Tapped a lockscreen notification, causes "tap again" hint.
+##                                    Note: Second tap logged as notification_clicked.
+36021 sysui_lockscreen_gesture (type|1),(lengthDp|1),(velocityDp|1)
 
 # ---------------------------
 # SettingsPanelView.java

packages/SystemUI/src/com/android/systemui/statusbar/DragDownHelper.java

@@ -126,7 +126,8 @@ public class DragDownHelper implements Gefingerpoken {
                 }
                 return true;
             case MotionEvent.ACTION_UP:
-                if (mDraggedFarEnough && mDragDownCallback.onDraggedDown(mStartingChild)) {
+                if (mDraggedFarEnough && mDragDownCallback.onDraggedDown(mStartingChild,
+                        (int) (y - mInitialTouchY))) {
                     if (mStartingChild == null) {
                         mDragDownCallback.setEmptyDragAmount(0f);
                     }
@@ -221,7 +222,7 @@ public class DragDownHelper implements Gefingerpoken {
         /**
          * @return true if the interaction is accepted, false if it should be cancelled
          */
-        boolean onDraggedDown(View startingChild);
+        boolean onDraggedDown(View startingChild, int dragLengthY);
         void onDragDownReset();
         void onThresholdReached();
         void onTouchSlopExceeded();

packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardAffordanceHelper.java

@@ -317,7 +317,7 @@ public class KeyguardAffordanceHelper {
         animator.addListener(mFlingEndListener);
         if (!snapBack) {
             startFinishingCircleAnimation(vel * 0.375f, mAnimationEndRunnable);
-            mCallback.onAnimationToSideStarted(mTranslation < 0);
+            mCallback.onAnimationToSideStarted(mTranslation < 0, mTranslation, vel);
         } else {
             reset(true);
         }
@@ -461,7 +461,7 @@ public class KeyguardAffordanceHelper {
          *
          * @param rightPage Is the page animated to the right page?
          */
-        void onAnimationToSideStarted(boolean rightPage);
+        void onAnimationToSideStarted(boolean rightPage, float translation, float vel);
 
         /**
          * Notifies the callback the animation to a side page has ended.

packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardBottomAreaView.java

@@ -47,6 +47,8 @@ import android.widget.TextView;
 import com.android.internal.widget.LockPatternUtils;
 import com.android.keyguard.KeyguardUpdateMonitor;
 import com.android.keyguard.KeyguardUpdateMonitorCallback;
+import com.android.systemui.EventLogConstants;
+import com.android.systemui.EventLogTags;
 import com.android.systemui.R;
 import com.android.systemui.statusbar.CommandQueue;
 import com.android.systemui.statusbar.KeyguardAffordanceView;
@@ -320,6 +322,9 @@ public class KeyguardBottomAreaView extends FrameLayout implements View.OnClickL
     }
 
     private void handleTrustCircleClick() {
+        EventLogTags.writeSysuiLockscreenGesture(
+                EventLogConstants.SYSUI_LOCKSCREEN_GESTURE_TAP_LOCK, 0 /* lengthDp - N/A */,
+                0 /* velocityDp - N/A */);
         mIndicationController.showTransientIndication(
                 R.string.keyguard_indication_trust_disabled);
         mLockPatternUtils.requireCredentialEntry(mLockPatternUtils.getCurrentUser());

packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java

@@ -39,6 +39,8 @@ import android.widget.FrameLayout;
 import android.widget.TextView;
 
 import com.android.keyguard.KeyguardStatusView;
+import com.android.systemui.EventLogTags;
+import com.android.systemui.EventLogConstants;
 import com.android.systemui.R;
 import com.android.systemui.qs.QSContainer;
 import com.android.systemui.qs.QSPanel;
@@ -1670,13 +1672,20 @@ public class NotificationPanelView extends PanelView implements
     }
 
     @Override
-    public void onAnimationToSideStarted(boolean rightPage) {
+    public void onAnimationToSideStarted(boolean rightPage, float translation, float vel) {
         boolean start = getLayoutDirection() == LAYOUT_DIRECTION_RTL ? rightPage : !rightPage;
         mIsLaunchTransitionRunning = true;
         mLaunchAnimationEndRunnable = null;
+        float displayDensity = mStatusBar.getDisplayDensity();
+        int lengthDp = Math.abs((int) (translation / displayDensity));
+        int velocityDp = Math.abs((int) (vel / displayDensity));
         if (start) {
+            EventLogTags.writeSysuiLockscreenGesture(
+                    EventLogConstants.SYSUI_LOCKSCREEN_GESTURE_SWIPE_DIALER, lengthDp, velocityDp);
             mKeyguardBottomArea.launchPhone();
         } else {
+            EventLogTags.writeSysuiLockscreenGesture(
+                    EventLogConstants.SYSUI_LOCKSCREEN_GESTURE_SWIPE_CAMERA, lengthDp, velocityDp);
             mSecureCameraLaunchManager.startSecureCameraLaunch();
         }
         mStatusBar.startLaunchTransitionTimeout();

packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelView.java

@@ -32,6 +32,8 @@ import android.view.animation.AnimationUtils;
 import android.view.animation.Interpolator;
 import android.widget.FrameLayout;
 
+import com.android.systemui.EventLogConstants;
+import com.android.systemui.EventLogTags;
 import com.android.systemui.R;
 import com.android.systemui.doze.DozeLog;
 import com.android.systemui.statusbar.FlingAnimationUtils;
@@ -338,6 +340,15 @@ public abstract class PanelView extends FrameLayout {
                     DozeLog.traceFling(expand, mTouchAboveFalsingThreshold,
                             mStatusBar.isFalsingThresholdNeeded(),
                             mStatusBar.isScreenOnComingFromTouch());
+                    // Log collapse gesture if on lock screen.
+                    if (!expand && mStatusBar.getBarState() == StatusBarState.KEYGUARD) {
+                        float displayDensity = mStatusBar.getDisplayDensity();
+                        int heightDp = (int) Math.abs((y - mInitialTouchY) / displayDensity);
+                        int velocityDp = (int) Math.abs(vel / displayDensity);
+                        EventLogTags.writeSysuiLockscreenGesture(
+                                EventLogConstants.SYSUI_LOCKSCREEN_GESTURE_SWIPE_UP_UNLOCK,
+                                heightDp, velocityDp);
+                    }
                     fling(vel, expand);
                     mUpdateFlingOnLayout = expand && mPanelClosedOnDown && !mHasLayoutedSinceDown;
                     if (mUpdateFlingOnLayout) {
@@ -941,6 +952,9 @@ public abstract class PanelView extends FrameLayout {
         switch (mStatusBar.getBarState()) {
             case StatusBarState.KEYGUARD:
                 if (!mDozingOnDown) {
+                    EventLogTags.writeSysuiLockscreenGesture(
+                            EventLogConstants.SYSUI_LOCKSCREEN_GESTURE_TAP_UNLOCK_HINT,
+                            0 /* lengthDp - N/A */, 0 /* velocityDp - N/A */);
                     startUnlockHintAnimation();
                 }
                 return true;

packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java

@@ -121,6 +121,7 @@ import com.android.keyguard.KeyguardHostView.OnDismissAction;
 import com.android.keyguard.ViewMediatorCallback;
 import com.android.systemui.BatteryMeterView;
 import com.android.systemui.DemoMode;
+import com.android.systemui.EventLogConstants;
 import com.android.systemui.EventLogTags;
 import com.android.systemui.FontSizeUtils;
 import com.android.systemui.R;
@@ -3078,6 +3079,10 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
         }
     }
 
+    float getDisplayDensity() {
+        return mDisplayMetrics.density;
+    }
+
     public void startActivityDismissingKeyguard(final Intent intent, boolean onlyProvisioned,
             final boolean dismissShade) {
         if (onlyProvisioned && !isDeviceProvisioned()) return;
@@ -3882,6 +3887,9 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
 
     @Override
     public void onActivated(ActivatableNotificationView view) {
+        EventLogTags.writeSysuiLockscreenGesture(
+                EventLogConstants.SYSUI_LOCKSCREEN_GESTURE_TAP_NOTIFICATION_ACTIVATE,
+                0 /* lengthDp - N/A */, 0 /* velocityDp - N/A */);
         mKeyguardIndicationController.showTransientIndication(R.string.notification_tap_again);
         ActivatableNotificationView previousView = mStackScroller.getActivatedChild();
         if (previousView != null) {
@@ -3962,8 +3970,12 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
     // ---------------------- DragDownHelper.OnDragDownListener ------------------------------------
 
     @Override
-    public boolean onDraggedDown(View startingChild) {
+    public boolean onDraggedDown(View startingChild, int dragLengthY) {
         if (hasActiveNotifications()) {
+            EventLogTags.writeSysuiLockscreenGesture(
+                    EventLogConstants.SYSUI_LOCKSCREEN_GESTURE_SWIPE_DOWN_FULL_SHADE,
+                    (int) (dragLengthY / mDisplayMetrics.density),
+                    0 /* velocityDp - N/A */);
 
             // We have notifications, go to locked shade.
             goToLockedShade(startingChild);