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 static android.view.View.ALPHA;
  import static android.view.View.INVISIBLE;
  import static android.view.View.VISIBLE;
  
  import android.graphics.Rect;
  import android.view.View;
  import android.view.animation.Interpolator;
  
  import com.android.launcher3.DeviceProfile;
  import com.android.launcher3.anim.PropertySetter;
  import com.android.systemui.plugins.AllAppsRow;
  
  /**
   * Wrapper over an {@link AllAppsRow} plugin with {@link FloatingHeaderRow} interface so that
   * it can be easily added in {@link FloatingHeaderView}.
   */
  public class PluginHeaderRow implements FloatingHeaderRow {
  
      private final AllAppsRow mPlugin;
      final View mView;
  
      PluginHeaderRow(AllAppsRow plugin, FloatingHeaderView parent) {
          mPlugin = plugin;
          mView = mPlugin.setup(parent);
      }
  
      @Override
      public void setup(FloatingHeaderView parent, FloatingHeaderRow[] allRows,
              boolean tabsHidden) { }
  
      @Override
      public void setInsets(Rect insets, DeviceProfile grid) { }
  
      @Override
      public int getExpectedHeight() {
          return mPlugin.getExpectedHeight();
      }
  
      @Override
      public boolean shouldDraw() {
          return true;
      }
  
      @Override
      public boolean hasVisibleContent() {
          return true;
      }
  
      @Override
      public void setContentVisibility(boolean hasHeaderExtra, boolean hasAllAppsContent,
              PropertySetter setter, Interpolator headerFade, Interpolator allAppsFade) {
          // Don't use setViewAlpha as we want to control the visibility ourselves.
          setter.setFloat(mView, ALPHA, hasAllAppsContent ? 1 : 0, headerFade);
      }
  
      @Override
      public void setVerticalScroll(int scroll, boolean isScrolledOut) {
          mView.setVisibility(isScrolledOut ? INVISIBLE : VISIBLE);
          if (!isScrolledOut) {
              mView.setTranslationY(scroll);
          }
      }
  
      @Override
      public Class<PluginHeaderRow> getTypeClass() {
          return PluginHeaderRow.class;
      }
  }