From 44f90f02f02f391b7e3d32254ff125caee4a8f61 Mon Sep 17 00:00:00 2001
From: Aaron Liu <aaronjli@google.com>
Date: Wed, 31 Aug 2022 09:23:00 -0700
Subject: [Bouncer] Add entry animation

Add entry animation
Bug: 239532368
Test: Manual on device

Change-Id: I684eeab572d1c96622fcf5b76a5562656484e7cc
---
 .../res-keyguard/layout/keyguard_pin_view.xml      | 29 +++++-----
 packages/SystemUI/res-keyguard/values/styles.xml   |  2 +-
 .../keyguard/KeyguardInputViewController.java      |  1 -
 .../src/com/android/keyguard/KeyguardPINView.java  | 63 +++++++++++++---------
 .../KeyguardSecurityViewFlipperController.java     |  1 -
 .../android/keyguard/NumPadAnimationListener.kt    | 23 ++++++++
 .../src/com/android/keyguard/NumPadAnimator.java   | 22 ++++++--
 .../src/com/android/keyguard/NumPadButton.java     |  9 +++-
 .../src/com/android/keyguard/NumPadKey.java        | 12 ++++-
 9 files changed, 114 insertions(+), 48 deletions(-)
 create mode 100644 packages/SystemUI/src/com/android/keyguard/NumPadAnimationListener.kt

diff --git a/packages/SystemUI/res-keyguard/layout/keyguard_pin_view.xml b/packages/SystemUI/res-keyguard/layout/keyguard_pin_view.xml
index 712f657a20ae..5936ead18f4a 100644
--- a/packages/SystemUI/res-keyguard/layout/keyguard_pin_view.xml
+++ b/packages/SystemUI/res-keyguard/layout/keyguard_pin_view.xml
@@ -17,23 +17,24 @@
 */
 -->
 
-<com.android.keyguard.KeyguardPINView
-        xmlns:android="http://schemas.android.com/apk/res/android"
-        xmlns:androidprv="http://schemas.android.com/apk/res-auto"
-        xmlns:tools="http://schemas.android.com/tools"
-        android:id="@+id/keyguard_pin_view"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        androidprv:layout_maxWidth="@dimen/keyguard_security_width"
-        android:layout_gravity="center_horizontal|bottom"
-        android:orientation="vertical"
-        >
-
-    <androidx.constraintlayout.widget.ConstraintLayout
+<com.android.keyguard.KeyguardPINView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:androidprv="http://schemas.android.com/apk/res-auto"
+    android:id="@+id/keyguard_pin_view"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:layout_gravity="center_horizontal|bottom"
+    android:clipChildren="false"
+    android:clipToPadding="false"
+    android:orientation="vertical"
+    androidprv:layout_maxWidth="@dimen/keyguard_security_width">
+
+<androidx.constraintlayout.widget.ConstraintLayout
         android:id="@+id/pin_container"
         android:layout_width="match_parent"
         android:layout_height="0dp"
         android:layout_marginBottom="8dp"
+        android:clipChildren="false"
+        android:clipToPadding="false"
         android:layout_weight="1"
         android:layoutDirection="ltr"
         android:orientation="vertical">
@@ -79,6 +80,8 @@
             android:layout_width="0dp"
             android:layout_height="0dp"
             android:orientation="horizontal"
+            android:clipChildren="false"
+            android:clipToPadding="false"
 
             androidprv:constraint_referenced_ids="key1,key2,key3,key4,key5,key6,key7,key8,key9,delete_button,key0,key_enter"
 
diff --git a/packages/SystemUI/res-keyguard/values/styles.xml b/packages/SystemUI/res-keyguard/values/styles.xml
index 625ffd3aa3ec..a1d12668d27a 100644
--- a/packages/SystemUI/res-keyguard/values/styles.xml
+++ b/packages/SystemUI/res-keyguard/values/styles.xml
@@ -50,7 +50,7 @@
         <item name="android:background">@null</item>
         <item name="android:textSize">32sp</item>
         <item name="android:textColor">?android:attr/textColorPrimary</item>
-        <item name="android:fontFamily">@*android:string/config_headlineFontFamily</item>
+        <item name="android:fontFamily">@*android:string/config_bodyFontFamily</item>
         <item name="android:paddingBottom">-16dp</item>
     </style>
     <style name="Widget.TextView.Password" parent="@android:style/Widget.TextView">
diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardInputViewController.java b/packages/SystemUI/src/com/android/keyguard/KeyguardInputViewController.java
index 87300c3f0504..50c9193cbbd1 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardInputViewController.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardInputViewController.java
@@ -45,7 +45,6 @@ public abstract class KeyguardInputViewController<T extends KeyguardInputView>
     private final EmergencyButtonController mEmergencyButtonController;
     private boolean mPaused;
 
-
     // The following is used to ignore callbacks from SecurityViews that are no longer current
     // (e.g. face unlock). This avoids unwanted asynchronous events from messing with the
     // state for the current security method.
diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardPINView.java b/packages/SystemUI/src/com/android/keyguard/KeyguardPINView.java
index 6844b655629a..20fa8f817dc0 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardPINView.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardPINView.java
@@ -16,23 +16,25 @@
 
 package com.android.keyguard;
 
-import static com.android.internal.jank.InteractionJankMonitor.CUJ_LOCKSCREEN_PIN_APPEAR;
 import static com.android.internal.jank.InteractionJankMonitor.CUJ_LOCKSCREEN_PIN_DISAPPEAR;
 import static com.android.systemui.statusbar.policy.DevicePostureController.DEVICE_POSTURE_HALF_OPENED;
 import static com.android.systemui.statusbar.policy.DevicePostureController.DEVICE_POSTURE_UNKNOWN;
 
+import android.animation.ValueAnimator;
 import android.content.Context;
 import android.content.res.Configuration;
 import android.util.AttributeSet;
+import android.util.MathUtils;
 import android.view.View;
 import android.view.animation.AnimationUtils;
+import android.view.animation.Interpolator;
 
 import androidx.constraintlayout.widget.ConstraintLayout;
 import androidx.constraintlayout.widget.ConstraintSet;
 
-import com.android.settingslib.animation.AppearAnimationUtils;
 import com.android.settingslib.animation.DisappearAnimationUtils;
 import com.android.systemui.R;
+import com.android.systemui.animation.Interpolators;
 import com.android.systemui.statusbar.policy.DevicePostureController.DevicePostureInt;
 
 /**
@@ -40,7 +42,7 @@ import com.android.systemui.statusbar.policy.DevicePostureController.DevicePostu
  */
 public class KeyguardPINView extends KeyguardPinBasedInputView {
 
-    private final AppearAnimationUtils mAppearAnimationUtils;
+    ValueAnimator mAppearAnimator = ValueAnimator.ofFloat(0f, 1f);
     private final DisappearAnimationUtils mDisappearAnimationUtils;
     private final DisappearAnimationUtils mDisappearAnimationUtilsLocked;
     private ConstraintLayout mContainer;
@@ -54,7 +56,6 @@ public class KeyguardPINView extends KeyguardPinBasedInputView {
 
     public KeyguardPINView(Context context, AttributeSet attrs) {
         super(context, attrs);
-        mAppearAnimationUtils = new AppearAnimationUtils(context);
         mDisappearAnimationUtils = new DisappearAnimationUtils(context,
                 125, 0.6f /* translationScale */,
                 0.45f /* delayScale */, AnimationUtils.loadInterpolator(
@@ -169,25 +170,20 @@ public class KeyguardPINView extends KeyguardPinBasedInputView {
 
     @Override
     public void startAppearAnimation() {
-        enableClipping(false);
-        setAlpha(1f);
-        setTranslationY(mAppearAnimationUtils.getStartTranslation());
-        AppearAnimationUtils.startTranslationYAnimation(this, 0 /* delay */, 500 /* duration */,
-                0, mAppearAnimationUtils.getInterpolator(),
-                getAnimationListener(CUJ_LOCKSCREEN_PIN_APPEAR));
-        mAppearAnimationUtils.startAnimation2d(mViews,
-                new Runnable() {
-                    @Override
-                    public void run() {
-                        enableClipping(true);
-                    }
-                });
+        if (mAppearAnimator.isRunning()) {
+            mAppearAnimator.cancel();
+        }
+        mAppearAnimator.setDuration(650);
+        mAppearAnimator.addUpdateListener(animation -> animate(animation.getAnimatedFraction()));
+        mAppearAnimator.start();
     }
 
     public boolean startDisappearAnimation(boolean needsSlowUnlockTransition,
             final Runnable finishRunnable) {
+        if (mAppearAnimator.isRunning()) {
+            mAppearAnimator.cancel();
+        }
 
-        enableClipping(false);
         setTranslationY(0);
         DisappearAnimationUtils disappearAnimationUtils = needsSlowUnlockTransition
                         ? mDisappearAnimationUtilsLocked
@@ -195,7 +191,6 @@ public class KeyguardPINView extends KeyguardPinBasedInputView {
         disappearAnimationUtils.createAnimation(
                 this, 0, 200, mDisappearYTranslation, false,
                 mDisappearAnimationUtils.getInterpolator(), () -> {
-                    enableClipping(true);
                     if (finishRunnable != null) {
                         finishRunnable.run();
                     }
@@ -204,14 +199,32 @@ public class KeyguardPINView extends KeyguardPinBasedInputView {
         return true;
     }
 
-    private void enableClipping(boolean enable) {
-        mContainer.setClipToPadding(enable);
-        mContainer.setClipChildren(enable);
-        setClipChildren(enable);
-    }
-
     @Override
     public boolean hasOverlappingRendering() {
         return false;
     }
+
+    /** Animate subviews according to expansion or time. */
+    private void animate(float progress) {
+        for (int i = 0; i < mViews.length; i++) {
+            View[] row = mViews[i];
+            for (View view : row) {
+                if (view == null) {
+                    continue;
+                }
+
+                float scaledProgress = MathUtils.constrain(
+                        (progress - 0.075f * i) / (1f - 0.075f * mViews.length),
+                        0f,
+                        1f
+                );
+                view.setAlpha(scaledProgress);
+                Interpolator interpolator = Interpolators.STANDARD_ACCELERATE;
+                view.setTranslationY(40 - (40 * interpolator.getInterpolation(scaledProgress)));
+                if (view instanceof NumPadAnimationListener) {
+                    ((NumPadAnimationListener) view).setProgress(scaledProgress);
+                }
+            }
+        }
+    }
 }
diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardSecurityViewFlipperController.java b/packages/SystemUI/src/com/android/keyguard/KeyguardSecurityViewFlipperController.java
index 3aa5ada0794d..51b68b72da30 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardSecurityViewFlipperController.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardSecurityViewFlipperController.java
@@ -156,7 +156,6 @@ public class KeyguardSecurityViewFlipperController
 
         @Override
         public void onStartingToHide() {
-
         }
     }
 }
diff --git a/packages/SystemUI/src/com/android/keyguard/NumPadAnimationListener.kt b/packages/SystemUI/src/com/android/keyguard/NumPadAnimationListener.kt
new file mode 100644
index 000000000000..f449edf8e894
--- /dev/null
+++ b/packages/SystemUI/src/com/android/keyguard/NumPadAnimationListener.kt
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2022 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.keyguard
+
+/** Interface for classes to track animation progress. */
+interface NumPadAnimationListener {
+    /** Track the progress of the animation. */
+    fun setProgress(progress: Float)
+}
diff --git a/packages/SystemUI/src/com/android/keyguard/NumPadAnimator.java b/packages/SystemUI/src/com/android/keyguard/NumPadAnimator.java
index c91c8992780c..e0cafaed5a35 100644
--- a/packages/SystemUI/src/com/android/keyguard/NumPadAnimator.java
+++ b/packages/SystemUI/src/com/android/keyguard/NumPadAnimator.java
@@ -48,6 +48,10 @@ class NumPadAnimator {
     private int mTextColorPrimary;
     private int mTextColorPressed;
     private int mStyle;
+    private float mStartRadius;
+    private float mEndRadius;
+    private int mHeight;
+
     private static final int EXPAND_ANIMATION_MS = 100;
     private static final int EXPAND_COLOR_ANIMATION_MS = 50;
     private static final int CONTRACT_ANIMATION_DELAY_MS = 33;
@@ -80,12 +84,20 @@ class NumPadAnimator {
         mContractAnimatorSet.start();
     }
 
+    public void setProgress(float progress) {
+        mBackground.setCornerRadius(mEndRadius + (mStartRadius - mEndRadius) * progress);
+        int height = (int) (mHeight * 0.8f + mHeight * 0.2 * progress);
+        int difference = mHeight - height;
+        mBackground.setBounds(0, difference / 2, mHeight, mHeight - difference / 2);
+    }
+
     void onLayout(int height) {
-        float startRadius = height / 2f;
-        float endRadius = height / 4f;
-        mBackground.setCornerRadius(startRadius);
-        mExpandAnimator.setFloatValues(startRadius, endRadius);
-        mContractAnimator.setFloatValues(endRadius, startRadius);
+        mHeight = height;
+        mStartRadius = height / 2f;
+        mEndRadius = height / 4f;
+        mBackground.setCornerRadius(mStartRadius);
+        mExpandAnimator.setFloatValues(mStartRadius, mEndRadius);
+        mContractAnimator.setFloatValues(mEndRadius, mStartRadius);
     }
 
     /**
diff --git a/packages/SystemUI/src/com/android/keyguard/NumPadButton.java b/packages/SystemUI/src/com/android/keyguard/NumPadButton.java
index 8099f75ed7d4..37060987cb21 100644
--- a/packages/SystemUI/src/com/android/keyguard/NumPadButton.java
+++ b/packages/SystemUI/src/com/android/keyguard/NumPadButton.java
@@ -30,7 +30,7 @@ import androidx.annotation.Nullable;
 /**
  * Similar to the {@link NumPadKey}, but displays an image.
  */
-public class NumPadButton extends AlphaOptimizedImageButton {
+public class NumPadButton extends AlphaOptimizedImageButton implements NumPadAnimationListener {
 
     @Nullable
     private NumPadAnimator mAnimator;
@@ -104,4 +104,11 @@ public class NumPadButton extends AlphaOptimizedImageButton {
         a.recycle();
         ((VectorDrawable) getDrawable()).setTintList(ColorStateList.valueOf(imageColor));
     }
+
+    @Override
+    public void setProgress(float progress) {
+        if (mAnimator != null) {
+            mAnimator.setProgress(progress);
+        }
+    }
 }
diff --git a/packages/SystemUI/src/com/android/keyguard/NumPadKey.java b/packages/SystemUI/src/com/android/keyguard/NumPadKey.java
index 4aed2513d4f2..0a4880e1ce66 100644
--- a/packages/SystemUI/src/com/android/keyguard/NumPadKey.java
+++ b/packages/SystemUI/src/com/android/keyguard/NumPadKey.java
@@ -37,7 +37,10 @@ import com.android.internal.widget.LockPatternUtils;
 import com.android.settingslib.Utils;
 import com.android.systemui.R;
 
-public class NumPadKey extends ViewGroup {
+/**
+ * Viewgroup for the bouncer numpad button, specifically for digits.
+ */
+public class NumPadKey extends ViewGroup implements NumPadAnimationListener {
     // list of "ABC", etc per digit, starting with '0'
     static String sKlondike[];
 
@@ -221,4 +224,11 @@ public class NumPadKey extends ViewGroup {
         performHapticFeedback(HapticFeedbackConstants.VIRTUAL_KEY,
                 HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
     }
+
+    @Override
+    public void setProgress(float progress) {
+        if (mAnimator != null) {
+            mAnimator.setProgress(progress);
+        }
+    }
 }
-- 
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