Some improvements to home to overview transition for 0 button mode

- Peek in overview further, and with more overshoot
- Fade out and scale down workspace faster while swiping up
- Scale and translate workspace slower when letting go to enter
  overview (so it doesn't zoom out at warp speed)
- Fade in all apps shelf sooner

Bug: 132455160
Change-Id: Ieafad0ccf9bb587889bc35d536627661db10e358

2 files changed, 40 insertions, 19 deletions

diff --git a/go/quickstep/src/com/android/launcher3/uioverrides/RecentsUiFactory.java b/go/quickstep/src/com/android/launcher3/uioverrides/RecentsUiFactory.java
index b5fefb46d..45822432f 100644
--- a/go/quickstep/src/com/android/launcher3/uioverrides/RecentsUiFactory.java
+++ b/go/quickstep/src/com/android/launcher3/uioverrides/RecentsUiFactory.java
@@ -16,11 +16,6 @@
 
 package com.android.launcher3.uioverrides;
 
-import static android.view.View.VISIBLE;
-import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
-
-import android.view.View;
-
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherStateManager.StateHandler;
@@ -43,8 +38,6 @@ import java.util.ArrayList;
 public abstract class RecentsUiFactory {
 
     public static final boolean GO_LOW_RAM_RECENTS_ENABLED = true;
-    // Scale recents takes before animating in
-    private static final float RECENTS_PREPARE_SCALE = 1.33f;
 
     public static TouchController[] createTouchControllers(Launcher launcher) {
         ArrayList<TouchController> list = new ArrayList<>();
@@ -77,18 +70,6 @@ public abstract class RecentsUiFactory {
     }
 
     /**
-     * Prepare the recents view to animate in.
-     *
-     * @param launcher the launcher activity
-     */
-    public static void prepareToShowOverview(Launcher launcher) {
-        View overview = launcher.getOverviewPanel();
-        if (overview.getVisibility() != VISIBLE) {
-            SCALE_PROPERTY.set(overview, RECENTS_PREPARE_SCALE);
-        }
-    }
-
-    /**
      * Clean-up logic that occurs when recents is no longer in use/visible.
      *
      * @param launcher the launcher activity
diff --git a/go/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java b/go/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
index 1b24fc856..d0cfcf97a 100644
--- a/go/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
+++ b/go/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
@@ -16,15 +16,31 @@
 
 package com.android.launcher3.uioverrides.states;
 
+import static android.view.View.VISIBLE;
+
 import static com.android.launcher3.LauncherAnimUtils.OVERVIEW_TRANSITION_MS;
+import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
+import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_OVERVIEW_FADE;
+import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_OVERVIEW_SCALE;
+import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_OVERVIEW_TRANSLATE_X;
+import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_WORKSPACE_FADE;
+import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_WORKSPACE_SCALE;
+import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_WORKSPACE_TRANSLATE;
+import static com.android.launcher3.anim.Interpolators.ACCEL;
 import static com.android.launcher3.anim.Interpolators.DEACCEL_2;
+import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_2;
+import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_7;
 import static com.android.launcher3.states.RotationHelper.REQUEST_ROTATE;
 
+import android.view.View;
+
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.R;
+import com.android.launcher3.anim.AnimatorSetBuilder;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
+import com.android.quickstep.SysUINavigationMode;
 import com.android.quickstep.views.IconRecentsView;
 
 /**
@@ -32,6 +48,9 @@ import com.android.quickstep.views.IconRecentsView;
  */
 public class OverviewState extends LauncherState {
 
+    // Scale recents takes before animating in
+    private static final float RECENTS_PREPARE_SCALE = 1.33f;
+
     private static final int STATE_FLAGS = FLAG_WORKSPACE_ICONS_CAN_BE_DRAGGED
             | FLAG_DISABLE_RESTORE | FLAG_OVERVIEW_UI | FLAG_DISABLE_ACCESSIBILITY;
 
@@ -103,6 +122,27 @@ public class OverviewState extends LauncherState {
         return dp.allAppsCellHeightPx - dp.allAppsIconTextSizePx;
     }
 
+    @Override
+    public void prepareForAtomicAnimation(Launcher launcher, LauncherState fromState,
+            AnimatorSetBuilder builder) {
+        if (fromState == NORMAL && this == OVERVIEW) {
+            if (SysUINavigationMode.getMode(launcher) == SysUINavigationMode.Mode.NO_BUTTON) {
+                builder.setInterpolator(ANIM_WORKSPACE_SCALE, ACCEL);
+                builder.setInterpolator(ANIM_WORKSPACE_TRANSLATE, ACCEL);
+            } else {
+                builder.setInterpolator(ANIM_WORKSPACE_SCALE, OVERSHOOT_1_2);
+            }
+            builder.setInterpolator(ANIM_WORKSPACE_FADE, OVERSHOOT_1_2);
+            builder.setInterpolator(ANIM_OVERVIEW_SCALE, OVERSHOOT_1_2);
+            builder.setInterpolator(ANIM_OVERVIEW_TRANSLATE_X, OVERSHOOT_1_7);
+            builder.setInterpolator(ANIM_OVERVIEW_FADE, OVERSHOOT_1_2);
+
+            View overview = launcher.getOverviewPanel();
+            if (overview.getVisibility() != VISIBLE) {
+                SCALE_PROPERTY.set(overview, RECENTS_PREPARE_SCALE);
+            }
+        }
+    }
 
     public static OverviewState newBackgroundState(int id) {
         return new OverviewState(id);