Merge "Dismiss split select when tapping on home button" into udc-qpr-dev am: 64f3766ba7

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/23986000

Change-Id: I6728ffc217017fad591b0ada439b4587197d6352
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

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

@@ -111,7 +111,7 @@ public abstract class BaseRecentsViewStateController<T extends RecentsView>
                 && !toState.overviewUi;
         if (mRecentsView.isSplitSelectionActive() && exitingOverview) {
             setter.add(mRecentsView.getSplitSelectController().getSplitAnimationController()
-                    .animateAwayPlaceholder(mLauncher));
+                    .createPlaceholderDismissAnim(mLauncher));
             setter.setViewAlpha(
                     mRecentsView.getSplitInstructionsView(),
                     0,

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

@@ -549,7 +549,7 @@ public class QuickstepLauncher extends Launcher {
         list.add(getDragController());
         Consumer<AnimatorSet> splitAnimator = animatorSet -> {
             AnimatorSet anim = mSplitSelectStateController.getSplitAnimationController()
-                    .animateAwayPlaceholder(QuickstepLauncher.this);
+                    .createPlaceholderDismissAnim(QuickstepLauncher.this);
             anim.addListener(new AnimatorListenerAdapter() {
                 @Override
                 public void onAnimationEnd(Animator animation) {
@@ -1000,6 +1000,13 @@ public class QuickstepLauncher extends Launcher {
         return mSplitToWorkspaceController;
     }
 
+    @Override
+    protected void handleSplitAnimationGoingToHome() {
+        super.handleSplitAnimationGoingToHome();
+        mSplitSelectStateController.getSplitAnimationController()
+                .playPlaceholderDismissAnim(this);
+    }
+
     public <T extends OverviewActionsView> T getActionsView() {
         return (T) mActionsView;
     }

quickstep/src/com/android/quickstep/util/SplitAnimationController.kt

@@ -17,6 +17,8 @@
 
 package com.android.quickstep.util
 
+import android.animation.Animator
+import android.animation.AnimatorListenerAdapter
 import android.animation.AnimatorSet
 import android.animation.ObjectAnimator
 import android.graphics.Bitmap
@@ -185,17 +187,32 @@ class SplitAnimationController(val splitSelectStateController: SplitSelectStateC
         }
     }
 
+    /** Does not play any animation if user is not currently in split selection state. */
+    fun playPlaceholderDismissAnim(launcher: Launcher) {
+        if (!splitSelectStateController.isSplitSelectActive) {
+            return
+        }
 
-    fun animateAwayPlaceholder(mLauncher: Launcher) : AnimatorSet {
+        val anim = createPlaceholderDismissAnim(launcher)
+        anim.addListener(object : AnimatorListenerAdapter() {
+            override fun onAnimationEnd(animation: Animator) {
+                splitSelectStateController.resetState()
+            }
+        })
+        anim.start()
+    }
+
+    /** Returns [AnimatorSet] which slides initial split placeholder view offscreen. */
+    fun createPlaceholderDismissAnim(launcher: Launcher) : AnimatorSet {
         val animatorSet = AnimatorSet()
-        val recentsView : RecentsView<*, *> = mLauncher.getOverviewPanel()
+        val recentsView : RecentsView<*, *> = launcher.getOverviewPanel()
         val floatingTask: FloatingTaskView = splitSelectStateController.firstFloatingTaskView
                 ?: return animatorSet
 
         // We are in split selection state currently, transitioning to another state
-        val dragLayer: DragLayer = mLauncher.dragLayer
+        val dragLayer: DragLayer = launcher.dragLayer
         val onScreenRectF = RectF()
-        Utilities.getBoundsForViewInDragLayer(mLauncher.dragLayer, floatingTask,
+        Utilities.getBoundsForViewInDragLayer(launcher.dragLayer, floatingTask,
                 Rect(0, 0, floatingTask.width, floatingTask.height),
                 false, null, onScreenRectF)
         // Get the part of the floatingTask that intersects with the DragLayer (i.e. the
@@ -214,7 +231,7 @@ class SplitAnimationController(val splitSelectStateController: SplitSelectStateC
                                 floatingTask,
                                 onScreenRectF,
                                 floatingTask.stagePosition,
-                                mLauncher.deviceProfile
+                                launcher.deviceProfile
                         )))
         return animatorSet
     }

quickstep/src/com/android/quickstep/views/LauncherRecentsView.java

@@ -86,6 +86,10 @@ public class LauncherRecentsView extends RecentsView<QuickstepLauncher, Launcher
         StateManager stateManager = mActivity.getStateManager();
         animated &= stateManager.shouldAnimateStateChange();
         stateManager.goToState(NORMAL, animated);
+        if (FeatureFlags.ENABLE_SPLIT_FROM_WORKSPACE_TO_WORKSPACE.get()) {
+            mSplitSelectStateController.getSplitAnimationController()
+                    .playPlaceholderDismissAnim(mActivity);
+        }
         AbstractFloatingView.closeAllOpenViews(mActivity, animated);
     }
 

src/com/android/launcher3/Launcher.java

@@ -1693,6 +1693,9 @@ public class Launcher extends StatefulActivity<LauncherState>
             if (mLauncherCallbacks != null) {
                 mLauncherCallbacks.onHomeIntent(internalStateHandled);
             }
+            if (FeatureFlags.ENABLE_SPLIT_FROM_WORKSPACE_TO_WORKSPACE.get()) {
+                handleSplitAnimationGoingToHome();
+            }
             mOverlayManager.hideOverlay(isStarted() && !isForceInvisible());
             handleGestureContract(intent);
         } else if (Intent.ACTION_ALL_APPS.equals(intent.getAction())) {
@@ -1706,6 +1709,11 @@ public class Launcher extends StatefulActivity<LauncherState>
         TraceHelper.INSTANCE.endSection();
     }
 
+    /** Handle animating away split placeholder view when user taps on home button */
+    protected void handleSplitAnimationGoingToHome() {
+        // Overridden
+    }
+
     protected void toggleAllAppsFromIntent(boolean alreadyOnHome) {
         if (getStateManager().isInStableState(ALL_APPS)) {
             getStateManager().goToState(NORMAL, alreadyOnHome);