Add unfold animation to launcher icons and widgets

Adds unfold animation to launcher which translates
icons and widgets from the center to the sides on
foldable devices.

Bug: 193794541
Test: manual
Change-Id: I9d6e018a0451d342f02dddea47bc180781c31d43

quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java

@@ -36,9 +36,13 @@ import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SY
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.res.Configuration;
+import android.hardware.SensorManager;
+import android.hardware.devicestate.DeviceStateManager;
 import android.view.HapticFeedbackConstants;
 import android.view.View;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.BaseQuickstepLauncher;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Launcher;
@@ -75,9 +79,14 @@ import com.android.quickstep.SysUINavigationMode;
 import com.android.quickstep.SysUINavigationMode.Mode;
 import com.android.quickstep.SystemUiProxy;
 import com.android.quickstep.TaskUtils;
+import com.android.quickstep.util.LauncherUnfoldAnimationController;
+import com.android.quickstep.util.ProxyScreenStatusProvider;
 import com.android.quickstep.util.QuickstepOnboardingPrefs;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskView;
+import com.android.unfold.UnfoldTransitionFactory;
+import com.android.unfold.UnfoldTransitionProgressProvider;
+import com.android.unfold.config.UnfoldTransitionConfig;
 
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
@@ -97,10 +106,51 @@ public class QuickstepLauncher extends BaseQuickstepLauncher {
     private FixedContainerItems mAllAppsPredictions;
     private HotseatPredictionController mHotseatPredictionController;
 
+    @Nullable
+    private LauncherUnfoldAnimationController mLauncherUnfoldAnimationController;
+
     @Override
     protected void setupViews() {
         super.setupViews();
         mHotseatPredictionController = new HotseatPredictionController(this);
+
+        final UnfoldTransitionConfig config = UnfoldTransitionFactory.createConfig(this);
+        if (config.isEnabled()) {
+            final UnfoldTransitionProgressProvider unfoldTransitionProgressProvider =
+                    UnfoldTransitionFactory.createUnfoldTransitionProgressProvider(
+                            this,
+                            config,
+                            ProxyScreenStatusProvider.INSTANCE,
+                            getSystemService(DeviceStateManager.class),
+                            getSystemService(SensorManager.class),
+                            getMainThreadHandler(),
+                            getMainExecutor()
+                    );
+
+            mLauncherUnfoldAnimationController = new LauncherUnfoldAnimationController(
+                    this,
+                    getWindowManager(),
+                    unfoldTransitionProgressProvider
+            );
+        }
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+
+        if (mLauncherUnfoldAnimationController != null) {
+            mLauncherUnfoldAnimationController.onResume();
+        }
+    }
+
+    @Override
+    protected void onPause() {
+        if (mLauncherUnfoldAnimationController != null) {
+            mLauncherUnfoldAnimationController.onPause();
+        }
+
+        super.onPause();
     }
 
     @Override
@@ -231,6 +281,10 @@ public class QuickstepLauncher extends BaseQuickstepLauncher {
     public void onDestroy() {
         super.onDestroy();
         mHotseatPredictionController.destroy();
+
+        if (mLauncherUnfoldAnimationController != null) {
+            mLauncherUnfoldAnimationController.onDestroy();
+        }
     }
 
     @Override

quickstep/src/com/android/quickstep/TouchInteractionService.java

@@ -100,6 +100,7 @@ import com.android.quickstep.inputconsumers.TaskbarStashInputConsumer;
 import com.android.quickstep.util.ActiveGestureLog;
 import com.android.quickstep.util.AssistantUtilities;
 import com.android.quickstep.util.ProtoTracer;
+import com.android.quickstep.util.ProxyScreenStatusProvider;
 import com.android.quickstep.util.SplitScreenBounds;
 import com.android.systemui.plugins.OverscrollPlugin;
 import com.android.systemui.plugins.PluginListener;
@@ -268,6 +269,12 @@ public class TouchInteractionService extends Service implements PluginListener<O
             MAIN_EXECUTOR.execute(() -> SplitScreenBounds.INSTANCE.setSecondaryWindowBounds(wb));
         }
 
+        @BinderThread
+        @Override
+        public void onScreenTurnedOn() {
+            MAIN_EXECUTOR.execute(ProxyScreenStatusProvider.INSTANCE::onScreenTurnedOn);
+        }
+
         @Override
         public void onRotationProposal(int rotation, boolean isValid) {
             executeForTaskbarManager(() -> mTaskbarManager.onRotationProposal(rotation, isValid));

quickstep/src/com/android/quickstep/util/LauncherUnfoldAnimationController.java

@@ -0,0 +1,122 @@
+/*
+ * 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.quickstep.util;
+
+import android.view.ViewTreeObserver;
+import android.view.WindowManager;
+
+import com.android.launcher3.Launcher;
+import com.android.unfold.UnfoldTransitionProgressProvider;
+import com.android.unfold.UnfoldTransitionProgressProvider.TransitionProgressListener;
+
+/**
+ * Controls animations that are happening during unfolding foldable devices
+ */
+public class LauncherUnfoldAnimationController {
+
+    private final Launcher mLauncher;
+    private final UnfoldTransitionProgressProvider mUnfoldTransitionProgressProvider;
+    private final UnfoldMoveFromCenterWorkspaceAnimator mMoveFromCenterWorkspaceAnimation;
+
+    private final AnimationListener mAnimationListener = new AnimationListener();
+
+    private boolean mIsTransitionRunning = false;
+    private boolean mIsReadyToPlayAnimation = false;
+
+    public LauncherUnfoldAnimationController(
+            Launcher launcher,
+            WindowManager windowManager,
+            UnfoldTransitionProgressProvider unfoldTransitionProgressProvider) {
+        mLauncher = launcher;
+        mUnfoldTransitionProgressProvider = unfoldTransitionProgressProvider;
+        mMoveFromCenterWorkspaceAnimation = new UnfoldMoveFromCenterWorkspaceAnimator(launcher,
+                windowManager);
+        mUnfoldTransitionProgressProvider.addCallback(mAnimationListener);
+    }
+
+    /**
+     * Called when launcher is resumed
+     */
+    public void onResume() {
+        final ViewTreeObserver obs = mLauncher.getWorkspace().getViewTreeObserver();
+        obs.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
+            @Override
+            public boolean onPreDraw() {
+                if (obs.isAlive()) {
+                    onPreDrawAfterResume();
+                    obs.removeOnPreDrawListener(this);
+                }
+                return true;
+            }
+        });
+    }
+
+    /**
+     * Called when launcher activity is paused
+     */
+    public void onPause() {
+        mIsReadyToPlayAnimation = false;
+
+        if (mIsTransitionRunning) {
+            mIsTransitionRunning = false;
+            mMoveFromCenterWorkspaceAnimation.onTransitionFinished();
+        }
+    }
+
+    /**
+     * Called when launcher activity is destroyed
+     */
+    public void onDestroy() {
+        mUnfoldTransitionProgressProvider.removeCallback(mAnimationListener);
+    }
+
+    /**
+     * Called after performing layouting of the views after configuration change
+     */
+    private void onPreDrawAfterResume() {
+        mIsReadyToPlayAnimation = true;
+
+        if (mIsTransitionRunning) {
+            mMoveFromCenterWorkspaceAnimation.onTransitionStarted();
+        }
+    }
+
+    private class AnimationListener implements TransitionProgressListener {
+
+        @Override
+        public void onTransitionStarted() {
+            mIsTransitionRunning = true;
+
+            if (mIsReadyToPlayAnimation) {
+                mMoveFromCenterWorkspaceAnimation.onTransitionStarted();
+            }
+        }
+
+        @Override
+        public void onTransitionFinished() {
+            if (mIsReadyToPlayAnimation) {
+                mMoveFromCenterWorkspaceAnimation.onTransitionFinished();
+            }
+
+            mIsTransitionRunning = false;
+        }
+
+        @Override
+        public void onTransitionProgress(float progress) {
+            mMoveFromCenterWorkspaceAnimation.onTransitionProgress(progress);
+        }
+    }
+}

quickstep/src/com/android/quickstep/util/ProxyScreenStatusProvider.java

@@ -0,0 +1,51 @@
+/*
+ * 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.quickstep.util;
+
+import androidx.annotation.NonNull;
+
+import com.android.unfold.updates.screen.ScreenStatusProvider;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Screen status provider implementation that exposes methods to provide screen
+ * status updates to listeners. It is used to receive screen turned on event from
+ * SystemUI to Launcher.
+ */
+public class ProxyScreenStatusProvider implements ScreenStatusProvider {
+
+    public static final ProxyScreenStatusProvider INSTANCE = new ProxyScreenStatusProvider();
+    private final List<ScreenListener> mListeners = new ArrayList<>();
+
+    /**
+     * Called when the screen is on and ready (windows are drawn and screen blocker is removed)
+     */
+    public void onScreenTurnedOn() {
+        mListeners.forEach(ScreenListener::onScreenTurnedOn);
+    }
+
+    @Override
+    public void addCallback(@NonNull ScreenListener listener) {
+        mListeners.add(listener);
+    }
+
+    @Override
+    public void removeCallback(@NonNull ScreenListener listener) {
+        mListeners.remove(listener);
+    }
+}

quickstep/src/com/android/quickstep/util/UnfoldMoveFromCenterWorkspaceAnimator.java

@@ -0,0 +1,140 @@
+/*
+ * 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.quickstep.util;
+
+import android.annotation.NonNull;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.WindowManager;
+
+import com.android.launcher3.BubbleTextView;
+import com.android.launcher3.CellLayout;
+import com.android.launcher3.Hotseat;
+import com.android.launcher3.Launcher;
+import com.android.launcher3.ShortcutAndWidgetContainer;
+import com.android.launcher3.Workspace;
+import com.android.launcher3.widget.NavigableAppWidgetHostView;
+import com.android.systemui.shared.animation.UnfoldMoveFromCenterAnimator;
+import com.android.systemui.shared.animation.UnfoldMoveFromCenterAnimator.TranslationApplier;
+import com.android.unfold.UnfoldTransitionProgressProvider;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Animation that moves launcher icons and widgets from center to the sides (final position)
+ */
+public class UnfoldMoveFromCenterWorkspaceAnimator
+        implements UnfoldTransitionProgressProvider.TransitionProgressListener {
+
+    private final Launcher mLauncher;
+    private final UnfoldMoveFromCenterAnimator mMoveFromCenterAnimation;
+
+    private final Map<ViewGroup, Boolean> mOriginalClipToPadding = new HashMap<>();
+    private final Map<ViewGroup, Boolean> mOriginalClipChildren = new HashMap<>();
+
+    public UnfoldMoveFromCenterWorkspaceAnimator(Launcher launcher, WindowManager windowManager) {
+        mLauncher = launcher;
+        mMoveFromCenterAnimation = new UnfoldMoveFromCenterAnimator(windowManager,
+                new WorkspaceViewsTranslationApplier());
+    }
+
+    @Override
+    public void onTransitionStarted() {
+        mMoveFromCenterAnimation.updateDisplayProperties();
+
+        Workspace workspace = mLauncher.getWorkspace();
+        Hotseat hotseat = mLauncher.getHotseat();
+
+        // App icons and widgets
+        workspace
+                .forEachVisiblePage(page -> {
+                    final CellLayout cellLayout = (CellLayout) page;
+                    ShortcutAndWidgetContainer itemsContainer = cellLayout
+                            .getShortcutsAndWidgets();
+                    disableClipping(cellLayout);
+
+                    for (int i = 0; i < itemsContainer.getChildCount(); i++) {
+                        View child = itemsContainer.getChildAt(i);
+                        mMoveFromCenterAnimation.registerViewForAnimation(child);
+                    }
+                });
+
+        disableClipping(workspace);
+
+        // Hotseat icons
+        ViewGroup hotseatIcons = hotseat.getShortcutsAndWidgets();
+        disableClipping(hotseat);
+
+        for (int i = 0; i < hotseatIcons.getChildCount(); i++) {
+            View child = hotseatIcons.getChildAt(i);
+            mMoveFromCenterAnimation.registerViewForAnimation(child);
+        }
+
+        onTransitionProgress(0f);
+    }
+
+    @Override
+    public void onTransitionProgress(float progress) {
+        mMoveFromCenterAnimation.onTransitionProgress(progress);
+    }
+
+    @Override
+    public void onTransitionFinished() {
+        mMoveFromCenterAnimation.onTransitionFinished();
+        mMoveFromCenterAnimation.clearRegisteredViews();
+
+        restoreClipping(mLauncher.getWorkspace());
+        mLauncher.getWorkspace().forEachVisiblePage(page -> restoreClipping((CellLayout) page));
+        restoreClipping(mLauncher.getHotseat());
+
+        mOriginalClipChildren.clear();
+        mOriginalClipToPadding.clear();
+    }
+
+    private void disableClipping(ViewGroup view) {
+        mOriginalClipToPadding.put(view, view.getClipToPadding());
+        mOriginalClipChildren.put(view, view.getClipChildren());
+        view.setClipToPadding(false);
+        view.setClipChildren(false);
+    }
+
+    private void restoreClipping(ViewGroup view) {
+        final Boolean originalClipToPadding = mOriginalClipToPadding.get(view);
+        if (originalClipToPadding != null) {
+            view.setClipToPadding(originalClipToPadding);
+        }
+        final Boolean originalClipChildren = mOriginalClipChildren.get(view);
+        if (originalClipChildren != null) {
+            view.setClipChildren(originalClipChildren);
+        }
+    }
+
+    private static class WorkspaceViewsTranslationApplier implements TranslationApplier {
+
+        @Override
+        public void apply(@NonNull View view, float x, float y) {
+            if (view instanceof NavigableAppWidgetHostView) {
+                ((NavigableAppWidgetHostView) view).setTranslationForMoveFromCenterAnimation(x, y);
+            } else if (view instanceof BubbleTextView) {
+                ((BubbleTextView) view).setTranslationForMoveFromCenterAnimation(x, y);
+            } else {
+                view.setTranslationX(x);
+                view.setTranslationY(y);
+            }
+        }
+    }
+}

src/com/android/launcher3/BubbleTextView.java

@@ -90,6 +90,8 @@ public class BubbleTextView extends TextView implements ItemInfoUpdateReceiver,
     private final PointF mTranslationForReorderBounce = new PointF(0, 0);
     private final PointF mTranslationForReorderPreview = new PointF(0, 0);
 
+    private final PointF mTranslationForMoveFromCenterAnimation = new PointF(0, 0);
+
     private float mScaleForReorderBounce = 1f;
 
     private static final Property<BubbleTextView, Float> DOT_SCALE_PROPERTY
@@ -799,8 +801,10 @@ public class BubbleTextView extends TextView implements ItemInfoUpdateReceiver,
     }
 
     private void updateTranslation() {
-        super.setTranslationX(mTranslationForReorderBounce.x + mTranslationForReorderPreview.x);
+        super.setTranslationX(mTranslationForReorderBounce.x + mTranslationForReorderPreview.x
-        super.setTranslationY(mTranslationForReorderBounce.y + mTranslationForReorderPreview.y);
+                + mTranslationForMoveFromCenterAnimation.x);
+        super.setTranslationY(mTranslationForReorderBounce.y + mTranslationForReorderPreview.y
+                + mTranslationForMoveFromCenterAnimation.y);
     }
 
     public void setReorderBounceOffset(float x, float y) {
@@ -833,6 +837,11 @@ public class BubbleTextView extends TextView implements ItemInfoUpdateReceiver,
         return mScaleForReorderBounce;
     }
 
+    public void setTranslationForMoveFromCenterAnimation(float x, float y) {
+        mTranslationForMoveFromCenterAnimation.set(x, y);
+        updateTranslation();
+    }
+
     public View getView() {
         return this;
     }

src/com/android/launcher3/widget/NavigableAppWidgetHostView.java

@@ -49,6 +49,8 @@ public abstract class NavigableAppWidgetHostView extends AppWidgetHostView
      */
     private final PointF mTranslationForCentering = new PointF(0, 0);
 
+    private final PointF mTranslationForMoveFromCenterAnimation = new PointF(0, 0);
+
     private final PointF mTranslationForReorderBounce = new PointF(0, 0);
     private final PointF mTranslationForReorderPreview = new PointF(0, 0);
     private float mScaleForReorderBounce = 1f;
@@ -167,9 +169,9 @@ public abstract class NavigableAppWidgetHostView extends AppWidgetHostView
 
     private void updateTranslation() {
         super.setTranslationX(mTranslationForReorderBounce.x + mTranslationForReorderPreview.x
-                + mTranslationForCentering.x);
+                + mTranslationForCentering.x + mTranslationForMoveFromCenterAnimation.x);
         super.setTranslationY(mTranslationForReorderBounce.y + mTranslationForReorderPreview.y
-                + mTranslationForCentering.y);
+                + mTranslationForCentering.y + mTranslationForMoveFromCenterAnimation.y);
     }
 
     public void setTranslationForCentering(float x, float y) {
@@ -177,6 +179,11 @@ public abstract class NavigableAppWidgetHostView extends AppWidgetHostView
         updateTranslation();
     }
 
+    public void setTranslationForMoveFromCenterAnimation(float x, float y) {
+        mTranslationForMoveFromCenterAnimation.set(x, y);
+        updateTranslation();
+    }
+
     public void setReorderBounceOffset(float x, float y) {
         mTranslationForReorderBounce.set(x, y);
         updateTranslation();