Replace translationYFactor with just translationY

Now that we don't have quick scrub, the only state that has a non-zero translation is all apps,
which just uses that to have a slight parallax. This is much simpler to define in terms of pixels
like other states do.

Change-Id: I108c8505d85591399256b3475f7566ff51e2c5ad
diff --git a/go/quickstep/src/com/android/launcher3/uioverrides/OverviewState.java b/go/quickstep/src/com/android/launcher3/uioverrides/OverviewState.java
index 5382607..cec12a8 100644
--- a/go/quickstep/src/com/android/launcher3/uioverrides/OverviewState.java
+++ b/go/quickstep/src/com/android/launcher3/uioverrides/OverviewState.java
@@ -43,7 +43,7 @@
     }
 
     @Override
-    public float[] getOverviewScaleAndTranslationYFactor(Launcher launcher) {
+    public float[] getOverviewScaleAndTranslationY(Launcher launcher) {
         return new float[] {1f, 0f};
     }
 
diff --git a/go/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java b/go/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
index 784af7d..0b12ab0 100644
--- a/go/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
+++ b/go/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
@@ -16,16 +16,15 @@
 package com.android.launcher3.uioverrides;
 
 import static com.android.quickstep.views.IconRecentsView.CONTENT_ALPHA;
-import static com.android.quickstep.views.IconRecentsView.TRANSLATION_Y_FACTOR;
 
 import android.util.FloatProperty;
 
-import androidx.annotation.NonNull;
-
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherRecentsToActivityHelper;
 import com.android.quickstep.views.IconRecentsView;
 
+import androidx.annotation.NonNull;
+
 /**
  * State handler for Go's {@link IconRecentsView}.
  */
@@ -39,11 +38,6 @@
     }
 
     @Override
-    FloatProperty<IconRecentsView> getTranslationYFactorProperty() {
-        return TRANSLATION_Y_FACTOR;
-    }
-
-    @Override
     FloatProperty<IconRecentsView> getContentAlphaProperty() {
         return CONTENT_ALPHA;
     }
diff --git a/go/quickstep/src/com/android/quickstep/views/IconRecentsView.java b/go/quickstep/src/com/android/quickstep/views/IconRecentsView.java
index 3fdaefe..504f640 100644
--- a/go/quickstep/src/com/android/quickstep/views/IconRecentsView.java
+++ b/go/quickstep/src/com/android/quickstep/views/IconRecentsView.java
@@ -46,20 +46,6 @@
  */
 public final class IconRecentsView extends FrameLayout {
 
-    public static final FloatProperty<IconRecentsView> TRANSLATION_Y_FACTOR =
-            new FloatProperty<IconRecentsView>("translationYFactor") {
-
-                @Override
-                public void setValue(IconRecentsView view, float v) {
-                    view.setTranslationYFactor(v);
-                }
-
-                @Override
-                public Float get(IconRecentsView view) {
-                    return view.mTranslationYFactor;
-                }
-            };
-
     public static final FloatProperty<IconRecentsView> CONTENT_ALPHA =
             new FloatProperty<IconRecentsView>("contentAlpha") {
                 @Override
@@ -91,7 +77,6 @@
     private final TaskInputController mTaskInputController;
 
     private RecentsToActivityHelper mActivityHelper;
-    private float mTranslationYFactor;
     private RecyclerView mTaskRecyclerView;
     private View mEmptyView;
 
@@ -170,15 +155,6 @@
         return view.getThumbnailView();
     }
 
-    public void setTranslationYFactor(float translationFactor) {
-        mTranslationYFactor = translationFactor;
-        setTranslationY(computeTranslationYForFactor(mTranslationYFactor));
-    }
-
-    private float computeTranslationYForFactor(float translationYFactor) {
-        return translationYFactor * (getPaddingBottom() - getPaddingTop());
-    }
-
     /**
      * Update the content view so that the appropriate view is shown based off the current list
      * of tasks.
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/BackgroundAppState.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/BackgroundAppState.java
index fdb80da..f712753 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/BackgroundAppState.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/BackgroundAppState.java
@@ -52,7 +52,7 @@
     }
 
     @Override
-    public float[] getOverviewScaleAndTranslationYFactor(Launcher launcher) {
+    public float[] getOverviewScaleAndTranslationY(Launcher launcher) {
         // Initialize the recents view scale to what it would be when starting swipe up
         RecentsView recentsView = launcher.getOverviewPanel();
         recentsView.getTaskSize(sTempRect);
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/OverviewState.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/OverviewState.java
index 79e127a..2360eeb 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/OverviewState.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/OverviewState.java
@@ -69,7 +69,7 @@
     }
 
     @Override
-    public float[] getOverviewScaleAndTranslationYFactor(Launcher launcher) {
+    public float[] getOverviewScaleAndTranslationY(Launcher launcher) {
         return new float[] {1f, 0f};
     }
 
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/RecentsViewStateController.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
index 0b3bd6c..0d5574f 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
@@ -15,7 +15,6 @@
  */
 package com.android.launcher3.uioverrides;
 
-import static com.android.quickstep.views.LauncherRecentsView.TRANSLATION_Y_FACTOR;
 import static com.android.quickstep.views.RecentsView.CONTENT_ALPHA;
 
 import android.animation.ValueAnimator;
@@ -23,8 +22,6 @@
 import android.os.Build;
 import android.util.FloatProperty;
 
-import androidx.annotation.NonNull;
-
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.LauncherStateManager.AnimationConfig;
@@ -32,6 +29,8 @@
 import com.android.quickstep.views.LauncherRecentsView;
 import com.android.quickstep.views.RecentsView;
 
+import androidx.annotation.NonNull;
+
 /**
  * State handler for handling UI changes for {@link LauncherRecentsView}. In addition to managing
  * the basic view properties, this class also manages changes in the task visuals.
@@ -80,11 +79,6 @@
     }
 
     @Override
-    FloatProperty<LauncherRecentsView> getTranslationYFactorProperty() {
-        return TRANSLATION_Y_FACTOR;
-    }
-
-    @Override
     FloatProperty<RecentsView> getContentAlphaProperty() {
         return CONTENT_ALPHA;
     }
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherActivityControllerHelper.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherActivityControllerHelper.java
index e95e2a0..20a22e9 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherActivityControllerHelper.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherActivityControllerHelper.java
@@ -56,9 +56,7 @@
 import com.android.launcher3.anim.SpringObjectAnimator;
 import com.android.launcher3.compat.AccessibilityManagerCompat;
 import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.dragndrop.DragLayer;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
-import com.android.launcher3.util.MultiValueAlpha.AlphaProperty;
 import com.android.launcher3.views.FloatingIconView;
 import com.android.quickstep.util.ClipAnimationHelper;
 import com.android.quickstep.util.LayoutUtils;
@@ -308,7 +306,7 @@
         // starting to line up the side pages during swipe up)
         float prevRvScale = recentsView.getScaleX();
         float prevRvTransY = recentsView.getTranslationY();
-        float targetRvScale = endState.getOverviewScaleAndTranslationYFactor(launcher)[0];
+        float targetRvScale = endState.getOverviewScaleAndTranslationY(launcher)[0];
         SCALE_PROPERTY.set(recentsView, targetRvScale);
         recentsView.setTranslationY(0);
         ClipAnimationHelper clipHelper = new ClipAnimationHelper(launcher);
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java
index 97bce5e..8f2a2d7 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java
@@ -56,27 +56,6 @@
 @TargetApi(Build.VERSION_CODES.O)
 public class LauncherRecentsView extends RecentsView<Launcher> {
 
-    public static final FloatProperty<LauncherRecentsView> TRANSLATION_Y_FACTOR =
-            new FloatProperty<LauncherRecentsView>("translationYFactor") {
-
-                @Override
-                public void setValue(LauncherRecentsView view, float v) {
-                    view.setTranslationYFactor(v);
-                }
-
-                @Override
-                public Float get(LauncherRecentsView view) {
-                    return view.mTranslationYFactor;
-                }
-            };
-
-    /**
-     * A ratio representing the view's relative placement within its padded space. For example, 0
-     * is top aligned and 0.5 is centered vertically.
-     */
-    @ViewDebug.ExportedProperty(category = "launcher")
-    private float mTranslationYFactor;
-
     private final TransformParams mTransformParams = new TransformParams();
     private ChipsContainer mChipsContainer;
 
@@ -104,12 +83,6 @@
     }
 
     @Override
-    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
-        super.onLayout(changed, left, top, right, bottom);
-        setTranslationYFactor(mTranslationYFactor);
-    }
-
-    @Override
     protected void onAttachedToWindow() {
         super.onAttachedToWindow();
         mChipsContainer = mActivity.findViewById(R.id.hints);
@@ -117,9 +90,9 @@
         params.bottomMargin = mActivity.getDeviceProfile().chipHintBottomMarginPx;
     }
 
-    public void setTranslationYFactor(float translationFactor) {
-        mTranslationYFactor = translationFactor;
-        setTranslationY(computeTranslationYForFactor(mTranslationYFactor));
+    @Override
+    public void setTranslationY(float translationY) {
+        super.setTranslationY(translationY);
         if (ENABLE_QUICKSTEP_LIVE_TILE.get()) {
             LauncherState state = mActivity.getStateManager().getState();
             if (state == OVERVIEW || state == ALL_APPS) {
@@ -128,10 +101,6 @@
         }
     }
 
-    public float computeTranslationYForFactor(float translationYFactor) {
-        return translationYFactor * (getPaddingBottom() - getPaddingTop());
-    }
-
     public void setHintVisibility(float v) {
         if (mChipsContainer != null && ENABLE_HINTS_IN_OVERVIEW.get()) {
             mChipsContainer.setHintVisibility(v);
diff --git a/quickstep/src/com/android/launcher3/uioverrides/AllAppsState.java b/quickstep/src/com/android/launcher3/uioverrides/AllAppsState.java
index 1eaa8bc..5ae562e 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/AllAppsState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/AllAppsState.java
@@ -78,8 +78,9 @@
     }
 
     @Override
-    public float[] getOverviewScaleAndTranslationYFactor(Launcher launcher) {
-        return new float[] {0.9f, -0.2f};
+    public float[] getOverviewScaleAndTranslationY(Launcher launcher) {
+        float slightParallax = -launcher.getDeviceProfile().allAppsCellHeightPx * 0.3f;
+        return new float[] {0.9f, slightParallax};
     }
 
     @Override
diff --git a/quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java b/quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java
index df9dbe4..e74d84d 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java
@@ -26,8 +26,6 @@
 import android.view.View;
 import android.view.animation.Interpolator;
 
-import androidx.annotation.NonNull;
-
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.LauncherStateManager.AnimationConfig;
@@ -35,6 +33,8 @@
 import com.android.launcher3.anim.AnimatorSetBuilder;
 import com.android.launcher3.anim.PropertySetter;
 
+import androidx.annotation.NonNull;
+
 /**
  * State handler for recents view. Manages UI changes and animations for recents view based off the
  * current {@link LauncherState}.
@@ -53,9 +53,9 @@
 
     @Override
     public void setState(@NonNull LauncherState state) {
-        float[] scaleTranslationYFactor = state.getOverviewScaleAndTranslationYFactor(mLauncher);
-        SCALE_PROPERTY.set(mRecentsView, scaleTranslationYFactor[0]);
-        getTranslationYFactorProperty().set(mRecentsView, scaleTranslationYFactor[1]);
+        float[] scaleTranslationY = state.getOverviewScaleAndTranslationY(mLauncher);
+        SCALE_PROPERTY.set(mRecentsView, scaleTranslationY[0]);
+        mRecentsView.setTranslationY(scaleTranslationY[1]);
         getContentAlphaProperty().set(mRecentsView, state.overviewUi ? 1f : 0);
     }
 
@@ -79,11 +79,11 @@
     void setStateWithAnimationInternal(@NonNull final LauncherState toState,
             @NonNull AnimatorSetBuilder builder, @NonNull AnimationConfig config) {
         PropertySetter setter = config.getPropertySetter(builder);
-        float[] scaleTranslationYFactor = toState.getOverviewScaleAndTranslationYFactor(mLauncher);
+        float[] scaleTranslationY = toState.getOverviewScaleAndTranslationY(mLauncher);
         Interpolator scaleAndTransYInterpolator = getScaleAndTransYInterpolator(toState, builder);
-        setter.setFloat(mRecentsView, SCALE_PROPERTY, scaleTranslationYFactor[0],
+        setter.setFloat(mRecentsView, SCALE_PROPERTY, scaleTranslationY[0],
                 scaleAndTransYInterpolator);
-        setter.setFloat(mRecentsView, getTranslationYFactorProperty(), scaleTranslationYFactor[1],
+        setter.setFloat(mRecentsView, View.TRANSLATION_Y, scaleTranslationY[1],
                 scaleAndTransYInterpolator);
         setter.setFloat(mRecentsView, getContentAlphaProperty(), toState.overviewUi ? 1 : 0,
                 builder.getInterpolator(ANIM_OVERVIEW_FADE, AGGRESSIVE_EASE_IN_OUT));
@@ -102,13 +102,6 @@
     }
 
     /**
-     * Get property for translation Y factor for the recents view.
-     *
-     * @return the float property for the recents view
-     */
-    abstract FloatProperty getTranslationYFactorProperty();
-
-    /**
      * Get property for content alpha for the recents view.
      *
      * @return the float property for the view's content alpha
diff --git a/src/com/android/launcher3/LauncherState.java b/src/com/android/launcher3/LauncherState.java
index cee1c26..875288a 100644
--- a/src/com/android/launcher3/LauncherState.java
+++ b/src/com/android/launcher3/LauncherState.java
@@ -192,13 +192,7 @@
         return getWorkspaceScaleAndTranslation(launcher);
     }
 
-    /**
-     * Returns 2 floats designating how to transition overview:
-     *   scale for the current and adjacent pages
-     *   translationY factor where 0 is top aligned and 0.5 is centered vertically
-     */
-    public float[] getOverviewScaleAndTranslationYFactor(Launcher launcher) {
-        // TODO: Simplify to use a constant value instead of a factor.
+    public float[] getOverviewScaleAndTranslationY(Launcher launcher) {
         return new float[] {1.1f, 0f};
     }