Adding support for swipe and hold to overview from home screen to all-apps

- After the atomic animation ends, overview jumps slightly because the
  normal -> all apps transition puts it at a different position than
  normal -> overview

Bug: 111926330
Change-Id: I6ca359b3ef2fc4d0b6b96229d8bf118bd0db9649

go/quickstep/src/com/android/launcher3/uioverrides/RecentsUiFactory.java

@@ -24,27 +24,39 @@ import android.view.View;
 
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherStateManager.StateHandler;
+import com.android.launcher3.Utilities;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.util.TouchController;
+import com.android.quickstep.OverviewInteractionState;
+
+import java.util.ArrayList;
 
 /**
  * Provides recents-related {@link UiFactory} logic and classes.
  */
-public final class RecentsUiFactory {
+public abstract class RecentsUiFactory {
 
     // Scale recents takes before animating in
     private static final float RECENTS_PREPARE_SCALE = 1.33f;
 
-    private RecentsUiFactory() {}
+    public static TouchController[] createTouchControllers(Launcher launcher) {
+        ArrayList<TouchController> list = new ArrayList<>();
+        list.add(launcher.getDragController());
 
-    /**
+        if (launcher.getDeviceProfile().isVerticalBarLayout()) {
-     * Creates and returns a touch controller for swiping recents tasks.
+            list.add(new OverviewToAllAppsTouchController(launcher));
-     *
+            list.add(new LandscapeEdgeSwipeController(launcher));
-     * @param launcher the launcher activity
+        } else {
-     * @return the touch controller for recents tasks
+            boolean allowDragToOverview = OverviewInteractionState.INSTANCE.get(launcher)
-     */
+                    .isSwipeUpGestureEnabled();
-    public static TouchController createTaskSwipeController(Launcher launcher) {
+            list.add(new PortraitStatesTouchController(launcher, allowDragToOverview));
-        // We leave all input handling to the view itself.
+        }
-        return null;
+        if (FeatureFlags.PULL_DOWN_STATUS_BAR && Utilities.IS_DEBUG_DEVICE
+                && !launcher.getDeviceProfile().isMultiWindowMode
+                && !launcher.getDeviceProfile().isVerticalBarLayout()) {
+            list.add(new StatusBarTouchController(launcher));
+        }
+        return list.toArray(new TouchController[list.size()]);
     }
 
     /**
@@ -62,7 +74,7 @@ public final class RecentsUiFactory {
      *
      * @param launcher the launcher activity
      */
-    public static void prepareToShowRecents(Launcher launcher) {
+    public static void prepareToShowOverview(Launcher launcher) {
         View overview = launcher.getOverviewPanel();
         if (overview.getVisibility() != VISIBLE) {
             SCALE_PROPERTY.set(overview, RECENTS_PREPARE_SCALE);
@@ -74,7 +86,7 @@ public final class RecentsUiFactory {
      *
      * @param launcher the launcher activity
      */
-    public static void resetRecents(Launcher launcher) {}
+    public static void resetOverview(Launcher launcher) {}
 
     /**
      * Recents logic that triggers when launcher state changes or launcher activity stops/resumes.

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/FlingAndHoldTouchController.java

@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2019 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.launcher3.uioverrides;
+
+import static com.android.launcher3.LauncherState.NORMAL;
+import static com.android.launcher3.LauncherState.OVERVIEW;
+import static com.android.launcher3.LauncherStateManager.NON_ATOMIC_COMPONENT;
+
+import android.animation.ValueAnimator;
+
+import com.android.launcher3.Launcher;
+import com.android.launcher3.anim.AnimatorSetBuilder;
+import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
+import com.android.quickstep.util.MotionPauseDetector;
+import com.android.quickstep.views.RecentsView;
+
+/**
+ * Touch controller which handles swipe and hold to go to Overview
+ */
+public class FlingAndHoldTouchController extends PortraitStatesTouchController {
+
+    private final MotionPauseDetector mMotionPauseDetector;
+
+    public FlingAndHoldTouchController(Launcher l) {
+        super(l, false /* allowDragToOverview */);
+        mMotionPauseDetector = new MotionPauseDetector(l);
+    }
+
+    @Override
+    public void onDragStart(boolean start) {
+        mMotionPauseDetector.clear();
+
+        super.onDragStart(start);
+
+        if (mStartState == NORMAL) {
+            mMotionPauseDetector.setOnMotionPauseListener(isPaused -> {
+                RecentsView recentsView = mLauncher.getOverviewPanel();
+                recentsView.setOverviewStateEnabled(isPaused);
+                maybeUpdateAtomicAnim(NORMAL, OVERVIEW, isPaused ? 1 : 0);
+            });
+        }
+    }
+
+    @Override
+    public boolean onDrag(float displacement) {
+        mMotionPauseDetector.addPosition(displacement);
+        return super.onDrag(displacement);
+    }
+
+    @Override
+    public void onDragEnd(float velocity, boolean fling) {
+        if (mMotionPauseDetector.isPaused() && mStartState == NORMAL) {
+            float range = getShiftRange();
+            long maxAccuracy = (long) (2 * range);
+
+            // Let the state manager know that the animation didn't go to the target state,
+            // but don't cancel ourselves (we already clean up when the animation completes).
+            Runnable onCancel = mCurrentAnimation.getOnCancelRunnable();
+            mCurrentAnimation.setOnCancelRunnable(null);
+            mCurrentAnimation.dispatchOnCancel();
+            mCurrentAnimation = mLauncher.getStateManager()
+                    .createAnimationToNewWorkspace(OVERVIEW, new AnimatorSetBuilder(), maxAccuracy,
+                            onCancel, NON_ATOMIC_COMPONENT);
+
+            final int logAction = fling ? Touch.FLING : Touch.SWIPE;
+            mCurrentAnimation.setEndAction(() -> onSwipeInteractionCompleted(OVERVIEW, logAction));
+
+
+            ValueAnimator anim = mCurrentAnimation.getAnimationPlayer();
+            maybeUpdateAtomicAnim(NORMAL, OVERVIEW, 1f);
+            mCurrentAnimation.dispatchOnStartWithVelocity(1, velocity);
+
+            // TODO: Find a better duration
+            anim.setDuration(100);
+            anim.start();
+            settleAtomicAnimation(1f, anim.getDuration());
+        } else {
+            super.onDragEnd(velocity, fling);
+        }
+    }
+}

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/RecentsUiFactory.java

@@ -21,32 +21,65 @@ import static android.view.View.VISIBLE;
 import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
 import static com.android.launcher3.LauncherState.NORMAL;
 import static com.android.launcher3.LauncherState.OVERVIEW;
+import static com.android.launcher3.config.FeatureFlags.SWIPE_HOME;
 
+import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.LauncherStateManager.StateHandler;
+import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimatorPlaybackController;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.util.TouchController;
+import com.android.launcher3.util.UiThreadHelper;
+import com.android.launcher3.util.UiThreadHelper.AsyncCommand;
+import com.android.quickstep.OverviewInteractionState;
 import com.android.quickstep.views.RecentsView;
+import com.android.systemui.shared.system.WindowManagerWrapper;
+
+import java.util.ArrayList;
 
 /**
  * Provides recents-related {@link UiFactory} logic and classes.
  */
-public final class RecentsUiFactory {
+public abstract class RecentsUiFactory {
+
+    private static final AsyncCommand SET_SHELF_HEIGHT_CMD = (visible, height) ->
+            WindowManagerWrapper.getInstance().setShelfHeight(visible != 0, height);
 
     // Scale recents takes before animating in
     private static final float RECENTS_PREPARE_SCALE = 1.33f;
 
-    private RecentsUiFactory() {}
+    public static TouchController[] createTouchControllers(Launcher launcher) {
+        boolean swipeUpEnabled = OverviewInteractionState.INSTANCE.get(launcher)
+                .isSwipeUpGestureEnabled();
+        boolean swipeUpToHome = swipeUpEnabled && SWIPE_HOME.get();
 
-    /**
+
-     * Creates and returns a touch controller for swiping recents tasks.
+        ArrayList<TouchController> list = new ArrayList<>();
-     *
+        list.add(launcher.getDragController());
-     * @param launcher the launcher activity
+
-     * @return the touch controller for recents tasks
+        if (swipeUpToHome) {
-     */
+            list.add(new FlingAndHoldTouchController(launcher));
-    public static TouchController createTaskSwipeController(Launcher launcher) {
+            list.add(new OverviewToAllAppsTouchController(launcher));
-        return new LauncherTaskViewController(launcher);
+        } else {
+            if (launcher.getDeviceProfile().isVerticalBarLayout()) {
+                list.add(new OverviewToAllAppsTouchController(launcher));
+                list.add(new LandscapeEdgeSwipeController(launcher));
+            } else {
+                list.add(new PortraitStatesTouchController(launcher,
+                        swipeUpEnabled /* allowDragToOverview */));
+            }
+        }
+
+        if (FeatureFlags.PULL_DOWN_STATUS_BAR && Utilities.IS_DEBUG_DEVICE
+                && !launcher.getDeviceProfile().isMultiWindowMode
+                && !launcher.getDeviceProfile().isVerticalBarLayout()) {
+            list.add(new StatusBarTouchController(launcher));
+        }
+
+        list.add(new LauncherTaskViewController(launcher));
+        return list.toArray(new TouchController[list.size()]);
     }
 
     /**
@@ -64,7 +97,7 @@ public final class RecentsUiFactory {
      *
      * @param launcher the launcher activity
      */
-    public static void prepareToShowRecents(Launcher launcher) {
+    public static void prepareToShowOverview(Launcher launcher) {
         RecentsView overview = launcher.getOverviewPanel();
         if (overview.getVisibility() != VISIBLE || overview.getContentAlpha() == 0) {
             SCALE_PROPERTY.set(overview, RECENTS_PREPARE_SCALE);
@@ -76,9 +109,8 @@ public final class RecentsUiFactory {
      *
      * @param launcher the launcher activity
      */
-    public static void resetRecents(Launcher launcher) {
+    public static void resetOverview(Launcher launcher) {
-        RecentsView recents = launcher.getOverviewPanel();
+        launcher.<RecentsView>getOverviewPanel().reset();
-        recents.reset();
     }
 
     /**
@@ -88,6 +120,14 @@ public final class RecentsUiFactory {
      */
     public static void onLauncherStateOrResumeChanged(Launcher launcher) {
         LauncherState state = launcher.getStateManager().getState();
+        if (!OverviewInteractionState.INSTANCE.get(launcher).swipeGestureInitializing()) {
+            DeviceProfile profile = launcher.getDeviceProfile();
+            boolean visible = (state == NORMAL || state == OVERVIEW) && launcher.isUserActive()
+                    && !profile.isVerticalBarLayout();
+            UiThreadHelper.runAsyncCommand(launcher, SET_SHELF_HEIGHT_CMD,
+                    visible ? 1 : 0, profile.hotseatBarSizePx);
+        }
+
         if (state == NORMAL) {
             launcher.<RecentsView>getOverviewPanel().setSwipeDownShouldLaunchApp(false);
         }

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

@@ -36,7 +36,7 @@ import com.android.quickstep.views.RecentsView;
 public class OverviewToAllAppsTouchController extends PortraitStatesTouchController {
 
     public OverviewToAllAppsTouchController(Launcher l) {
-        super(l);
+        super(l, true /* allowDragToOverview */);
     }
 
     @Override

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

@@ -67,14 +67,17 @@ public class PortraitStatesTouchController extends AbstractStateChangeTouchContr
 
     private final PortraitOverviewStateTouchHelper mOverviewPortraitStateTouchHelper;
 
-    private InterpolatorWrapper mAllAppsInterpolatorWrapper = new InterpolatorWrapper();
+    private final InterpolatorWrapper mAllAppsInterpolatorWrapper = new InterpolatorWrapper();
+
+    private final boolean mAllowDragToOverview;
 
     // If true, we will finish the current animation instantly on second touch.
     private boolean mFinishFastOnSecondTouch;
 
-    public PortraitStatesTouchController(Launcher l) {
+    public PortraitStatesTouchController(Launcher l, boolean allowDragToOverview) {
         super(l, SwipeDetector.VERTICAL);
         mOverviewPortraitStateTouchHelper = new PortraitOverviewStateTouchHelper(l);
+        mAllowDragToOverview = allowDragToOverview;
     }
 
     @Override
@@ -128,7 +131,8 @@ public class PortraitStatesTouchController extends AbstractStateChangeTouchContr
         } else if (fromState == OVERVIEW) {
             return isDragTowardPositive ? ALL_APPS : NORMAL;
         } else if (fromState == NORMAL && isDragTowardPositive) {
-            return TouchInteractionService.isConnected() ? OVERVIEW : ALL_APPS;
+            return mAllowDragToOverview && TouchInteractionService.isConnected()
+                    ? OVERVIEW : ALL_APPS;
         }
         return fromState;
     }

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

@@ -35,68 +35,32 @@ import android.os.CancellationSignal;
 import android.util.Base64;
 
 import com.android.launcher3.AbstractFloatingView;
-import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.LauncherStateManager;
 import com.android.launcher3.LauncherStateManager.StateHandler;
 import com.android.launcher3.QuickstepAppTransitionManagerImpl;
 import com.android.launcher3.Utilities;
-import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.util.TouchController;
-import com.android.launcher3.util.UiThreadHelper;
-import com.android.launcher3.util.UiThreadHelper.AsyncCommand;
 import com.android.quickstep.OverviewInteractionState;
 import com.android.quickstep.RecentsModel;
 import com.android.quickstep.util.RemoteFadeOutAnimationListener;
 import com.android.systemui.shared.system.ActivityCompat;
-import com.android.systemui.shared.system.WindowManagerWrapper;
 
 import java.io.ByteArrayOutputStream;
 import java.io.PrintWriter;
-import java.util.ArrayList;
 import java.util.zip.Deflater;
 
-public class UiFactory {
+public class UiFactory extends RecentsUiFactory {
-
-    private static final AsyncCommand SET_SHELF_HEIGHT_CMD = (visible, height) ->
-            WindowManagerWrapper.getInstance().setShelfHeight(visible != 0, height);
-
-    public static TouchController[] createTouchControllers(Launcher launcher) {
-        boolean swipeUpEnabled = OverviewInteractionState.INSTANCE.get(launcher)
-                .isSwipeUpGestureEnabled();
-        ArrayList<TouchController> list = new ArrayList<>();
-        list.add(launcher.getDragController());
-
-        if (!swipeUpEnabled || launcher.getDeviceProfile().isVerticalBarLayout()) {
-            list.add(new OverviewToAllAppsTouchController(launcher));
-        }
-
-        if (launcher.getDeviceProfile().isVerticalBarLayout()) {
-            list.add(new LandscapeEdgeSwipeController(launcher));
-        } else {
-            list.add(new PortraitStatesTouchController(launcher));
-        }
-        if (FeatureFlags.PULL_DOWN_STATUS_BAR && Utilities.IS_DEBUG_DEVICE
-                && !launcher.getDeviceProfile().isMultiWindowMode
-                && !launcher.getDeviceProfile().isVerticalBarLayout()) {
-            list.add(new StatusBarTouchController(launcher));
-        }
-        TouchController taskSwipeController =
-                RecentsUiFactory.createTaskSwipeController(launcher);
-        if (taskSwipeController != null) {
-            list.add(taskSwipeController);
-        }
-        return list.toArray(new TouchController[list.size()]);
-    }
 
     public static void setOnTouchControllersChangedListener(Context context, Runnable listener) {
         OverviewInteractionState.INSTANCE.get(context).setOnSwipeUpSettingChangedListener(listener);
     }
 
     public static StateHandler[] getStateHandler(Launcher launcher) {
-        return new StateHandler[] {launcher.getAllAppsController(), launcher.getWorkspace(),
+        return new StateHandler[] {
-                RecentsUiFactory.createRecentsViewStateController(launcher),
+                launcher.getAllAppsController(),
+                launcher.getWorkspace(),
+                createRecentsViewStateController(launcher),
                 new BackButtonAlphaHandler(launcher)};
     }
 
@@ -116,10 +80,6 @@ public class UiFactory {
                 .setBackButtonAlpha(shouldBackButtonBeHidden ? 0 : 1, true /* animate */);
     }
 
-    public static void resetOverview(Launcher launcher) {
-        RecentsUiFactory.resetRecents(launcher);
-    }
-
     public static void onCreate(Launcher launcher) {
         if (!launcher.getSharedPrefs().getBoolean(HOME_BOUNCE_SEEN, false)) {
             launcher.getStateManager().addStateListener(new LauncherStateManager.StateListener() {
@@ -171,19 +131,6 @@ public class UiFactory {
                 .getHighResLoadingState().setVisible(true);
     }
 
-    public static void onLauncherStateOrResumeChanged(Launcher launcher) {
-        LauncherState state = launcher.getStateManager().getState();
-        if (!OverviewInteractionState.INSTANCE.get(launcher).swipeGestureInitializing()) {
-            DeviceProfile profile = launcher.getDeviceProfile();
-            boolean visible = (state == NORMAL || state == OVERVIEW) && launcher.isUserActive()
-                    && !profile.isVerticalBarLayout();
-            UiThreadHelper.runAsyncCommand(launcher, SET_SHELF_HEIGHT_CMD,
-                    visible ? 1 : 0, profile.hotseatBarSizePx);
-        }
-
-        RecentsUiFactory.onLauncherStateOrResumeChanged(launcher);
-    }
-
     public static void onTrimMemory(Context context, int level) {
         RecentsModel model = RecentsModel.INSTANCE.get(context);
         if (model != null) {
@@ -233,8 +180,4 @@ public class UiFactory {
                 out.toByteArray(), Base64.NO_WRAP | Base64.NO_PADDING));
         return true;
     }
-
-    public static void prepareToShowOverview(Launcher launcher) {
-        RecentsUiFactory.prepareToShowRecents(launcher);
-    }
 }

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

@@ -135,6 +135,10 @@ public class MotionPauseDetector {
         mIsPaused = mHasEverBeenPaused = false;
     }
 
+    public boolean isPaused() {
+        return mIsPaused;
+    }
+
     public interface OnMotionPauseListener {
         void onMotionPauseChanged(boolean isPaused);
     }

src/com/android/launcher3/touch/AbstractStateChangeTouchController.java

@@ -46,7 +46,6 @@ import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.anim.AnimatorSetBuilder;
 import com.android.launcher3.compat.AccessibilityManagerCompat;
-import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Direction;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
@@ -298,7 +297,7 @@ public abstract class AbstractStateChangeTouchController
      * When going between normal and overview states, see if we passed the overview threshold and
      * play the appropriate atomic animation if so.
      */
-    private void maybeUpdateAtomicAnim(LauncherState fromState, LauncherState toState,
+    protected void maybeUpdateAtomicAnim(LauncherState fromState, LauncherState toState,
             float progress) {
         if (!goingBetweenNormalAndOverview(fromState, toState)) {
             return;
@@ -435,7 +434,11 @@ public abstract class AbstractStateChangeTouchController
             mLauncher.getAppsView().addSpringFromFlingUpdateListener(anim, velocity);
         }
         anim.start();
-        mAtomicAnimAutoPlayInfo = new AutoPlayAtomicAnimationInfo(endProgress, anim.getDuration());
+        settleAtomicAnimation(endProgress, anim.getDuration());
+    }
+
+    protected void settleAtomicAnimation(float endProgress, long duration) {
+        mAtomicAnimAutoPlayInfo = new AutoPlayAtomicAnimationInfo(endProgress, duration);
         maybeAutoPlayAtomicComponentsAnim();
     }