content: /*
   * Copyright (C) 2015 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.content.Context;
  import android.content.Intent;
  import android.content.res.Resources;
  import android.view.Gravity;
  import android.view.LayoutInflater;
  import android.view.View;
  import android.view.View.OnFocusChangeListener;
  import android.view.ViewGroup;
  import android.view.accessibility.AccessibilityEvent;
  import android.widget.TextView;
  
  import androidx.core.view.accessibility.AccessibilityNodeInfoCompat;
  import androidx.recyclerview.widget.GridLayoutManager;
  import androidx.recyclerview.widget.RecyclerView;
  
  import com.android.launcher3.AppInfo;
  import com.android.launcher3.BubbleTextView;
  import com.android.launcher3.Launcher;
  import com.android.launcher3.R;
  import com.android.launcher3.allapps.AlphabeticalAppsList.AdapterItem;
  import com.android.launcher3.compat.UserManagerCompat;
  import com.android.launcher3.model.AppLaunchTracker;
  import com.android.launcher3.touch.ItemClickHandler;
  import com.android.launcher3.touch.ItemLongClickListener;
  import com.android.launcher3.util.PackageManagerHelper;
  
  import java.util.List;
  
  import amirz.helpers.Settings;
  
  /**
   * The grid view adapter of all the apps.
   */
  public class AllAppsGridAdapter extends RecyclerView.Adapter<AllAppsGridAdapter.ViewHolder> {
  
      public static final String TAG = "AppsGridAdapter";
  
      // A normal icon
      public static final int VIEW_TYPE_ICON = 1 << 1;
      // The message shown when there are no filtered results
      public static final int VIEW_TYPE_EMPTY_SEARCH = 1 << 2;
      // The message to continue to a market search when there are no filtered results
      public static final int VIEW_TYPE_SEARCH_MARKET = 1 << 3;
  
      // We use various dividers for various purposes.  They share enough attributes to reuse layouts,
      // but differ in enough attributes to require different view types
  
      // A divider that separates the apps list and the search market button
      public static final int VIEW_TYPE_ALL_APPS_DIVIDER = 1 << 4;
      public static final int VIEW_TYPE_WORK_TAB_FOOTER = 1 << 5;
  
      // Common view type masks
      public static final int VIEW_TYPE_MASK_DIVIDER = VIEW_TYPE_ALL_APPS_DIVIDER;
      public static final int VIEW_TYPE_MASK_ICON = VIEW_TYPE_ICON;
  
  
      public interface BindViewCallback {
          void onBindView(ViewHolder holder);
      }
  
      /**
       * ViewHolder for each icon.
       */
      public static class ViewHolder extends RecyclerView.ViewHolder {
  
          public ViewHolder(View v) {
              super(v);
          }
      }
  
      /**
       * A subclass of GridLayoutManager that overrides accessibility values during app search.
       */
      public class AppsGridLayoutManager extends GridLayoutManager {
  
          public AppsGridLayoutManager(Context context) {
              super(context, 1, GridLayoutManager.VERTICAL, false);
          }
  
          @Override
          public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
              super.onInitializeAccessibilityEvent(event);
  
              // Ensure that we only report the number apps for accessibility not including other
              // adapter views
              event.setItemCount(mApps.getNumFilteredApps());
              event.setFromIndex(Math.max(0,
                      event.getFromIndex() - getRowsNotForAccessibility(event.getFromIndex())));
              event.setToIndex(Math.max(0,
                      event.getToIndex() - getRowsNotForAccessibility(event.getToIndex())));
          }
  
          @Override
          public int getRowCountForAccessibility(RecyclerView.Recycler recycler,
                  RecyclerView.State state) {
              return super.getRowCountForAccessibility(recycler, state) -
                      getRowsNotForAccessibility(mApps.getAdapterItems().size() - 1);
          }
  
          @Override
          public void onInitializeAccessibilityNodeInfoForItem(RecyclerView.Recycler recycler,
                  RecyclerView.State state, View host, AccessibilityNodeInfoCompat info) {
              super.onInitializeAccessibilityNodeInfoForItem(recycler, state, host, info);
  
              ViewGroup.LayoutParams lp = host.getLayoutParams();
              AccessibilityNodeInfoCompat.CollectionItemInfoCompat cic = info.getCollectionItemInfo();
              if (!(lp instanceof LayoutParams) || (cic == null)) {
                  return;
              }
              LayoutParams glp = (LayoutParams) lp;
              info.setCollectionItemInfo(AccessibilityNodeInfoCompat.CollectionItemInfoCompat.obtain(
                      cic.getRowIndex() - getRowsNotForAccessibility(glp.getViewAdapterPosition()),
                      cic.getRowSpan(),
                      cic.getColumnIndex(),
                      cic.getColumnSpan(),
                      cic.isHeading(),
                      cic.isSelected()));
          }
  
          /**
           * Returns the number of rows before {@param adapterPosition}, including this position
           * which should not be counted towards the collection info.
           */
          private int getRowsNotForAccessibility(int adapterPosition) {
              List<AdapterItem> items = mApps.getAdapterItems();
              adapterPosition = Math.max(adapterPosition, mApps.getAdapterItems().size() - 1);
              int extraRows = 0;
              for (int i = 0; i <= adapterPosition; i++) {
                  if (!isViewType(items.get(i).viewType, VIEW_TYPE_MASK_ICON)) {
                      extraRows++;
                  }
              }
              return extraRows;
          }
      }
  
      /**
       * Helper class to size the grid items.
       */
      public class GridSpanSizer extends GridLayoutManager.SpanSizeLookup {
  
          public GridSpanSizer() {
              super();
              setSpanIndexCacheEnabled(true);
          }
  
          @Override
          public int getSpanSize(int position) {
              if (isIconViewType(mApps.getAdapterItems().get(position).viewType)) {
                  return 1;
              } else {
                  // Section breaks span the full width
                  return mAppsPerRow;
              }
          }
      }
  
      private final Launcher mLauncher;
      private final LayoutInflater mLayoutInflater;
      private final AlphabeticalAppsList mApps;
      private final GridLayoutManager mGridLayoutMgr;
      private final GridSpanSizer mGridSizer;
  
      private int mAppsPerRow;
  
      private BindViewCallback mBindViewCallback;
      private OnFocusChangeListener mIconFocusListener;
  
      // The text to show when there are no search results and no market search handler.
      private String mEmptySearchMessage;
      // The intent to send off to the market app, updated each time the search query changes.
      private Intent mMarketSearchIntent;
  
      public AllAppsGridAdapter(Launcher launcher, AlphabeticalAppsList apps) {
          Resources res = launcher.getResources();
          mLauncher = launcher;
          mApps = apps;
          mEmptySearchMessage = res.getString(R.string.all_apps_loading_message);
          mGridSizer = new GridSpanSizer();
          mGridLayoutMgr = new AppsGridLayoutManager(launcher);
          mGridLayoutMgr.setSpanSizeLookup(mGridSizer);
          mLayoutInflater = LayoutInflater.from(launcher);
  
          setAppsPerRow(mLauncher.getDeviceProfile().inv.numAllAppsColumns);
      }
  
      public void setAppsPerRow(int appsPerRow) {
          mAppsPerRow = appsPerRow;
          mGridLayoutMgr.setSpanCount(mAppsPerRow);
      }
  
      public static boolean isDividerViewType(int viewType) {
          return isViewType(viewType, VIEW_TYPE_MASK_DIVIDER);
      }
  
      public static boolean isIconViewType(int viewType) {
          return isViewType(viewType, VIEW_TYPE_MASK_ICON);
      }
  
      public static boolean isViewType(int viewType, int viewTypeMask) {
          return (viewType & viewTypeMask) != 0;
      }
  
      public void setIconFocusListener(OnFocusChangeListener focusListener) {
          mIconFocusListener = focusListener;
      }
  
      /**
       * Sets the last search query that was made, used to show when there are no results and to also
       * seed the intent for searching the market.
       */
      public void setLastSearchQuery(String query) {
          Resources res = mLauncher.getResources();
          mEmptySearchMessage = res.getString(R.string.all_apps_no_search_results, query);
          mMarketSearchIntent = PackageManagerHelper.getMarketSearchIntent(mLauncher, query);
      }
  
      /**
       * Sets the callback for when views are bound.
       */
      public void setBindViewCallback(BindViewCallback cb) {
          mBindViewCallback = cb;
      }
  
      /**
       * Returns the grid layout manager.
       */
      public GridLayoutManager getLayoutManager() {
          return mGridLayoutMgr;
      }
  
      @Override
      public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
          switch (viewType) {
              case VIEW_TYPE_ICON:
                  BubbleTextView icon = (BubbleTextView) mLayoutInflater.inflate(
                          R.layout.all_apps_icon, parent, false);
                  icon.setOnClickListener(ItemClickHandler.INSTANCE);
                  icon.setOnLongClickListener(ItemLongClickListener.INSTANCE_ALL_APPS);
                  icon.setLongPressTimeoutFactor(1f);
                  icon.setOnFocusChangeListener(mIconFocusListener);
  
                  // Ensure the all apps icon height matches the workspace icons in portrait mode.
                  icon.getLayoutParams().height = mLauncher.getDeviceProfile().allAppsCellHeightPx;
                  return new ViewHolder(icon);
              case VIEW_TYPE_EMPTY_SEARCH:
                  return new ViewHolder(mLayoutInflater.inflate(R.layout.all_apps_empty_search,
                          parent, false));
              case VIEW_TYPE_SEARCH_MARKET:
                  View searchMarketView = mLayoutInflater.inflate(R.layout.all_apps_search_market,
                          parent, false);
                  searchMarketView.setOnClickListener(v -> mLauncher.startActivitySafely(
                          v, mMarketSearchIntent, null, AppLaunchTracker.CONTAINER_SEARCH));
                  return new ViewHolder(searchMarketView);
              case VIEW_TYPE_ALL_APPS_DIVIDER:
                  return new ViewHolder(mLayoutInflater.inflate(
                          R.layout.all_apps_divider, parent, false));
              case VIEW_TYPE_WORK_TAB_FOOTER:
                  View footer = mLayoutInflater.inflate(R.layout.work_tab_footer, parent, false);
                  return new ViewHolder(footer);
              default:
                  throw new RuntimeException("Unexpected view type");
          }
      }
  
      @Override
      public void onBindViewHolder(ViewHolder holder, int position) {
          switch (holder.getItemViewType()) {
              case VIEW_TYPE_ICON:
                  AppInfo info = mApps.getAdapterItems().get(position).appInfo;
                  BubbleTextView icon = (BubbleTextView) holder.itemView;
                  Settings.setAllAppsTextColor(icon);
                  icon.reset();
                  icon.applyFromApplicationInfo(info);
                  break;
              case VIEW_TYPE_EMPTY_SEARCH:
                  TextView emptyViewText = (TextView) holder.itemView;
                  emptyViewText.setText(mEmptySearchMessage);
                  emptyViewText.setGravity(mApps.hasNoFilteredResults() ? Gravity.CENTER :
                          Gravity.START | Gravity.CENTER_VERTICAL);
                  break;
              case VIEW_TYPE_SEARCH_MARKET:
                  TextView searchView = (TextView) holder.itemView;
                  if (mMarketSearchIntent != null) {
                      searchView.setVisibility(View.VISIBLE);
                  } else {
                      searchView.setVisibility(View.GONE);
                  }
                  break;
              case VIEW_TYPE_ALL_APPS_DIVIDER:
                  // nothing to do
                  break;
              case VIEW_TYPE_WORK_TAB_FOOTER:
                  WorkModeSwitch workModeToggle = holder.itemView.findViewById(R.id.work_mode_toggle);
                  workModeToggle.refresh();
                  TextView managedByLabel = holder.itemView.findViewById(R.id.managed_by_label);
                  boolean anyProfileQuietModeEnabled = UserManagerCompat.getInstance(
                          managedByLabel.getContext()).isAnyProfileQuietModeEnabled();
                  managedByLabel.setText(anyProfileQuietModeEnabled
                          ? R.string.work_mode_off_label : R.string.work_mode_on_label);
                  break;
          }
          if (mBindViewCallback != null) {
              mBindViewCallback.onBindView(holder);
          }
      }
  
      @Override
      public boolean onFailedToRecycleView(ViewHolder holder) {
          // Always recycle and we will reset the view when it is bound
          return true;
      }
  
      @Override
      public int getItemCount() {
          return mApps.getAdapterItems().size();
      }
  
      @Override
      public int getItemViewType(int position) {
          AlphabeticalAppsList.AdapterItem item = mApps.getAdapterItems().get(position);
          return item.viewType;
      }
  
  }
  