content: /*
   * Copyright (C) 2018 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.allapps;
  
  import android.graphics.Rect;
  import android.view.animation.Interpolator;
  
  import com.android.launcher3.DeviceProfile;
  import com.android.launcher3.anim.PropertySetter;
  
  /**
   * A abstract representation of a row in all-apps view
   */
  public interface FloatingHeaderRow {
  
      FloatingHeaderRow[] NO_ROWS = new FloatingHeaderRow[0];
  
      void setup(FloatingHeaderView parent, FloatingHeaderRow[] allRows, boolean tabsHidden);
  
      void setInsets(Rect insets, DeviceProfile grid);
  
      int getExpectedHeight();
  
      /**
       * Returns true if the row should draw based on its current position and layout.
       */
      boolean shouldDraw();
  
      /**
       * Returns true if the view has anything worth drawing. This is different than
       * {@link #shouldDraw()} as this is called earlier in the layout to determine the view
       * position.
       */
      boolean hasVisibleContent();
  
      void setContentVisibility(boolean hasHeaderExtra, boolean hasAllAppsContent,
              PropertySetter setter, Interpolator headerFade, Interpolator allAppsFade);
  
      /**
       * Scrolls the content vertically.
       */
      void setVerticalScroll(int scroll, boolean isScrolledOut);
  
      Class<? extends FloatingHeaderRow> getTypeClass();
  }
  