content: /*
   * Copyright (C) 2017 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.uioverrides.states;
  
  import static com.android.launcher3.LauncherAnimUtils.ALL_APPS_TRANSITION_MS;
  import static com.android.launcher3.allapps.DiscoveryBounce.HOME_BOUNCE_SEEN;
  import static com.android.launcher3.anim.Interpolators.DEACCEL_2;
  
  import com.android.launcher3.AbstractFloatingView;
  import com.android.launcher3.Launcher;
  import com.android.launcher3.LauncherState;
  import com.android.launcher3.R;
  import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
  
  /**
   * Definition for AllApps state
   */
  public class AllAppsState extends LauncherState {
  
      private static final float PARALLAX_COEFFICIENT = .125f;
  
      private static final int STATE_FLAGS = FLAG_DISABLE_ACCESSIBILITY;
  
      private static final PageAlphaProvider PAGE_ALPHA_PROVIDER = new PageAlphaProvider(DEACCEL_2) {
          @Override
          public float getPageAlpha(int pageIndex) {
              return 0;
          }
      };
  
      public AllAppsState(int id) {
          super(id, ContainerType.ALLAPPS, ALL_APPS_TRANSITION_MS, STATE_FLAGS);
      }
  
      @Override
      public void onStateEnabled(Launcher launcher) {
          if (!launcher.getSharedPrefs().getBoolean(HOME_BOUNCE_SEEN, false)) {
              launcher.getSharedPrefs().edit().putBoolean(HOME_BOUNCE_SEEN, true).apply();
          }
  
          AbstractFloatingView.closeAllOpenViews(launcher);
          dispatchWindowStateChanged(launcher);
      }
  
      @Override
      public String getDescription(Launcher launcher) {
          return launcher.getString(R.string.all_apps_button_label);
      }
  
      @Override
      public int getVisibleElements(Launcher launcher) {
          return ALL_APPS_HEADER | ALL_APPS_CONTENT;
      }
  
      @Override
      public ScaleAndTranslation getWorkspaceScaleAndTranslation(Launcher launcher) {
          return new ScaleAndTranslation(1f, 0,
                  -launcher.getAllAppsController().getShiftRange() * PARALLAX_COEFFICIENT);
      }
  
      @Override
      public PageAlphaProvider getWorkspacePageAlphaProvider(Launcher launcher) {
          return PAGE_ALPHA_PROVIDER;
      }
  
      @Override
      public float getVerticalProgress(Launcher launcher) {
          return 0f;
      }
  }
  