/*
 * Copyright (C) 2010 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.contacts.common.list;

import android.content.Context;
import android.content.CursorLoader;
import android.content.res.Resources;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.provider.ContactsContract.Contacts;
import android.provider.ContactsContract.Directory;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.QuickContactBadge;
import android.widget.SectionIndexer;
import android.widget.TextView;
import com.android.contacts.common.ContactsUtils;
import com.android.contacts.common.R;
import com.android.contacts.common.compat.DirectoryCompat;
import com.android.contacts.common.util.SearchUtil;
import com.android.dialer.common.LogUtil;
import com.android.dialer.compat.CompatUtils;
import com.android.dialer.configprovider.ConfigProviderBindings;
import com.android.dialer.contactphoto.ContactPhotoManager;
import com.android.dialer.contactphoto.ContactPhotoManager.DefaultImageRequest;
import com.android.dialer.logging.InteractionEvent;
import com.android.dialer.logging.Logger;
import java.util.HashSet;

/**
 * Common base class for various contact-related lists, e.g. contact list, phone number list etc.
 */
public abstract class ContactEntryListAdapter extends IndexerListAdapter {

  /**
   * Indicates whether the {@link Directory#LOCAL_INVISIBLE} directory should be included in the
   * search.
   */
  public static final boolean LOCAL_INVISIBLE_DIRECTORY_ENABLED = false;

  private int mDisplayOrder;
  private int mSortOrder;

  private boolean mDisplayPhotos;
  private boolean mCircularPhotos = true;
  private boolean mQuickContactEnabled;
  private boolean mAdjustSelectionBoundsEnabled;

  /** The root view of the fragment that this adapter is associated with. */
  private View mFragmentRootView;

  private ContactPhotoManager mPhotoLoader;

  private String mQueryString;
  private String mUpperCaseQueryString;
  private boolean mSearchMode;
  private int mDirectorySearchMode;
  private int mDirectoryResultLimit = Integer.MAX_VALUE;

  private boolean mEmptyListEnabled = true;

  private boolean mSelectionVisible;

  private ContactListFilter mFilter;
  private boolean mDarkTheme = false;

  public static final int SUGGESTIONS_LOADER_ID = 0;

  /** Resource used to provide header-text for default filter. */
  private CharSequence mDefaultFilterHeaderText;

  public ContactEntryListAdapter(Context context) {
    super(context);
    setDefaultFilterHeaderText(R.string.local_search_label);
    addPartitions();
  }

  /**
   * @param fragmentRootView Root view of the fragment. This is used to restrict the scope of image
   *     loading requests that get cancelled on cursor changes.
   */
  protected void setFragmentRootView(View fragmentRootView) {
    mFragmentRootView = fragmentRootView;
  }

  protected void setDefaultFilterHeaderText(int resourceId) {
    mDefaultFilterHeaderText = getContext().getResources().getText(resourceId);
  }

  @Override
  protected ContactListItemView newView(
      Context context, int partition, Cursor cursor, int position, ViewGroup parent) {
    final ContactListItemView view = new ContactListItemView(context, null);
    view.setIsSectionHeaderEnabled(isSectionHeaderDisplayEnabled());
    view.setAdjustSelectionBoundsEnabled(isAdjustSelectionBoundsEnabled());
    return view;
  }

  @Override
  protected void bindView(View itemView, int partition, Cursor cursor, int position) {
    final ContactListItemView view = (ContactListItemView) itemView;
    view.setIsSectionHeaderEnabled(isSectionHeaderDisplayEnabled());
    bindWorkProfileIcon(view, partition);
  }

  @Override
  protected View createPinnedSectionHeaderView(Context context, ViewGroup parent) {
    return new ContactListPinnedHeaderView(context, null, parent);
  }

  @Override
  protected void setPinnedSectionTitle(View pinnedHeaderView, String title) {
    ((ContactListPinnedHeaderView) pinnedHeaderView).setSectionHeaderTitle(title);
  }

  protected void addPartitions() {
    if (ConfigProviderBindings.get(getContext()).getBoolean("p13n_ranker_should_enable", false)) {
      addPartition(createSuggestionsDirectoryPartition());
    }
    addPartition(createDefaultDirectoryPartition());
  }

  protected DirectoryPartition createSuggestionsDirectoryPartition() {
    DirectoryPartition partition = new DirectoryPartition(true, true);
    partition.setDirectoryId(SUGGESTIONS_LOADER_ID);
    partition.setDirectoryType(getContext().getString(R.string.contact_suggestions));
    partition.setPriorityDirectory(true);
    partition.setPhotoSupported(true);
    partition.setLabel(getContext().getString(R.string.local_suggestions_search_label));
    return partition;
  }

  protected DirectoryPartition createDefaultDirectoryPartition() {
    DirectoryPartition partition = new DirectoryPartition(true, true);
    partition.setDirectoryId(Directory.DEFAULT);
    partition.setDirectoryType(getContext().getString(R.string.contactsList));
    partition.setPriorityDirectory(true);
    partition.setPhotoSupported(true);
    partition.setLabel(mDefaultFilterHeaderText.toString());
    return partition;
  }

  /**
   * Remove all directories after the default directory. This is typically used when contacts list
   * screens are asked to exit the search mode and thus need to remove all remote directory results
   * for the search.
   *
   * <p>This code assumes that the default directory and directories before that should not be
   * deleted (e.g. Join screen has "suggested contacts" directory before the default director, and
   * we should not remove the directory).
   */
  public void removeDirectoriesAfterDefault() {
    final int partitionCount = getPartitionCount();
    for (int i = partitionCount - 1; i >= 0; i--) {
      final Partition partition = getPartition(i);
      if ((partition instanceof DirectoryPartition)
          && ((DirectoryPartition) partition).getDirectoryId() == Directory.DEFAULT) {
        break;
      } else {
        removePartition(i);
      }
    }
  }

  protected int getPartitionByDirectoryId(long id) {
    int count = getPartitionCount();
    for (int i = 0; i < count; i++) {
      Partition partition = getPartition(i);
      if (partition instanceof DirectoryPartition) {
        if (((DirectoryPartition) partition).getDirectoryId() == id) {
          return i;
        }
      }
    }
    return -1;
  }

  protected DirectoryPartition getDirectoryById(long id) {
    int count = getPartitionCount();
    for (int i = 0; i < count; i++) {
      Partition partition = getPartition(i);
      if (partition instanceof DirectoryPartition) {
        final DirectoryPartition directoryPartition = (DirectoryPartition) partition;
        if (directoryPartition.getDirectoryId() == id) {
          return directoryPartition;
        }
      }
    }
    return null;
  }

  public abstract void configureLoader(CursorLoader loader, long directoryId);

  /** Marks all partitions as "loading" */
  public void onDataReload() {
    boolean notify = false;
    int count = getPartitionCount();
    for (int i = 0; i < count; i++) {
      Partition partition = getPartition(i);
      if (partition instanceof DirectoryPartition) {
        DirectoryPartition directoryPartition = (DirectoryPartition) partition;
        if (!directoryPartition.isLoading()) {
          notify = true;
        }
        directoryPartition.setStatus(DirectoryPartition.STATUS_NOT_LOADED);
      }
    }
    if (notify) {
      notifyDataSetChanged();
    }
  }

  @Override
  public void clearPartitions() {
    int count = getPartitionCount();
    for (int i = 0; i < count; i++) {
      Partition partition = getPartition(i);
      if (partition instanceof DirectoryPartition) {
        DirectoryPartition directoryPartition = (DirectoryPartition) partition;
        directoryPartition.setStatus(DirectoryPartition.STATUS_NOT_LOADED);
      }
    }
    super.clearPartitions();
  }

  public boolean isSearchMode() {
    return mSearchMode;
  }

  public void setSearchMode(boolean flag) {
    mSearchMode = flag;
  }

  public String getQueryString() {
    return mQueryString;
  }

  public void setQueryString(String queryString) {
    mQueryString = queryString;
    if (TextUtils.isEmpty(queryString)) {
      mUpperCaseQueryString = null;
    } else {
      mUpperCaseQueryString = SearchUtil.cleanStartAndEndOfSearchQuery(queryString.toUpperCase());
    }

    // Enable default partition header if in search mode (including zero-suggest).
    if (mQueryString != null) {
      setDefaultPartitionHeader(true);
    }
  }

  public String getUpperCaseQueryString() {
    return mUpperCaseQueryString;
  }

  public int getDirectorySearchMode() {
    return mDirectorySearchMode;
  }

  public void setDirectorySearchMode(int mode) {
    mDirectorySearchMode = mode;
  }

  public int getDirectoryResultLimit() {
    return mDirectoryResultLimit;
  }

  public void setDirectoryResultLimit(int limit) {
    this.mDirectoryResultLimit = limit;
  }

  public int getDirectoryResultLimit(DirectoryPartition directoryPartition) {
    final int limit = directoryPartition.getResultLimit();
    return limit == DirectoryPartition.RESULT_LIMIT_DEFAULT ? mDirectoryResultLimit : limit;
  }

  public int getContactNameDisplayOrder() {
    return mDisplayOrder;
  }

  public void setContactNameDisplayOrder(int displayOrder) {
    mDisplayOrder = displayOrder;
  }

  public int getSortOrder() {
    return mSortOrder;
  }

  public void setSortOrder(int sortOrder) {
    mSortOrder = sortOrder;
  }

  protected ContactPhotoManager getPhotoLoader() {
    return mPhotoLoader;
  }

  public void setPhotoLoader(ContactPhotoManager photoLoader) {
    mPhotoLoader = photoLoader;
  }

  public boolean getDisplayPhotos() {
    return mDisplayPhotos;
  }

  public void setDisplayPhotos(boolean displayPhotos) {
    mDisplayPhotos = displayPhotos;
  }

  public boolean getCircularPhotos() {
    return mCircularPhotos;
  }

  public boolean isSelectionVisible() {
    return mSelectionVisible;
  }

  public void setSelectionVisible(boolean flag) {
    this.mSelectionVisible = flag;
  }

  public boolean isQuickContactEnabled() {
    return mQuickContactEnabled;
  }

  public void setQuickContactEnabled(boolean quickContactEnabled) {
    mQuickContactEnabled = quickContactEnabled;
  }

  public boolean isAdjustSelectionBoundsEnabled() {
    return mAdjustSelectionBoundsEnabled;
  }

  public void setAdjustSelectionBoundsEnabled(boolean enabled) {
    mAdjustSelectionBoundsEnabled = enabled;
  }

  public void setProfileExists(boolean exists) {
    // Stick the "ME" header for the profile
    if (exists) {
      setSectionHeader(R.string.user_profile_contacts_list_header, /* # of ME */ 1);
    }
  }

  private void setSectionHeader(int resId, int numberOfItems) {
    SectionIndexer indexer = getIndexer();
    if (indexer != null) {
      ((ContactsSectionIndexer) indexer)
          .setProfileAndFavoritesHeader(getContext().getString(resId), numberOfItems);
    }
  }

  public void setDarkTheme(boolean value) {
    mDarkTheme = value;
  }

  /** Updates partitions according to the directory meta-data contained in the supplied cursor. */
  public void changeDirectories(Cursor cursor) {
    if (cursor.getCount() == 0) {
      // Directory table must have at least local directory, without which this adapter will
      // enter very weird state.
      LogUtil.i(
          "ContactEntryListAdapter.changeDirectories",
          "directory search loader returned an empty cursor, which implies we have "
              + "no directory entries.",
          new RuntimeException());
      return;
    }
    HashSet<Long> directoryIds = new HashSet<Long>();

    int idColumnIndex = cursor.getColumnIndex(Directory._ID);
    int directoryTypeColumnIndex = cursor.getColumnIndex(DirectoryListLoader.DIRECTORY_TYPE);
    int displayNameColumnIndex = cursor.getColumnIndex(Directory.DISPLAY_NAME);
    int photoSupportColumnIndex = cursor.getColumnIndex(Directory.PHOTO_SUPPORT);

    // TODO preserve the order of partition to match those of the cursor
    // Phase I: add new directories
    cursor.moveToPosition(-1);
    while (cursor.moveToNext()) {
      long id = cursor.getLong(idColumnIndex);
      directoryIds.add(id);
      if (getPartitionByDirectoryId(id) == -1) {
        DirectoryPartition partition = new DirectoryPartition(false, true);
        partition.setDirectoryId(id);
        if (DirectoryCompat.isRemoteDirectoryId(id)) {
          if (DirectoryCompat.isEnterpriseDirectoryId(id)) {
            partition.setLabel(mContext.getString(R.string.directory_search_label_work));
          } else {
            partition.setLabel(mContext.getString(R.string.directory_search_label));
          }
        } else {
          if (DirectoryCompat.isEnterpriseDirectoryId(id)) {
            partition.setLabel(mContext.getString(R.string.list_filter_phones_work));
          } else {
            partition.setLabel(mDefaultFilterHeaderText.toString());
          }
        }
        partition.setDirectoryType(cursor.getString(directoryTypeColumnIndex));
        partition.setDisplayName(cursor.getString(displayNameColumnIndex));
        int photoSupport = cursor.getInt(photoSupportColumnIndex);
        partition.setPhotoSupported(
            photoSupport == Directory.PHOTO_SUPPORT_THUMBNAIL_ONLY
                || photoSupport == Directory.PHOTO_SUPPORT_FULL);
        addPartition(partition);
      }
    }

    // Phase II: remove deleted directories
    int count = getPartitionCount();
    for (int i = count; --i >= 0; ) {
      Partition partition = getPartition(i);
      if (partition instanceof DirectoryPartition) {
        long id = ((DirectoryPartition) partition).getDirectoryId();
        if (!directoryIds.contains(id)) {
          removePartition(i);
        }
      }
    }

    invalidate();
    notifyDataSetChanged();
  }

  @Override
  public void changeCursor(int partitionIndex, Cursor cursor) {
    if (partitionIndex >= getPartitionCount()) {
      // There is no partition for this data
      return;
    }

    Partition partition = getPartition(partitionIndex);
    if (partition instanceof DirectoryPartition) {
      ((DirectoryPartition) partition).setStatus(DirectoryPartition.STATUS_LOADED);
    }

    if (mDisplayPhotos && mPhotoLoader != null && isPhotoSupported(partitionIndex)) {
      mPhotoLoader.refreshCache();
    }

    super.changeCursor(partitionIndex, cursor);

    if (isSectionHeaderDisplayEnabled() && partitionIndex == getIndexedPartition()) {
      updateIndexer(cursor);
    }

    // When the cursor changes, cancel any pending asynchronous photo loads.
    mPhotoLoader.cancelPendingRequests(mFragmentRootView);
  }

  public void changeCursor(Cursor cursor) {
    changeCursor(0, cursor);
  }

  /** Updates the indexer, which is used to produce section headers. */
  private void updateIndexer(Cursor cursor) {
    if (cursor == null || cursor.isClosed()) {
      setIndexer(null);
      return;
    }

    Bundle bundle = cursor.getExtras();
    if (bundle.containsKey(Contacts.EXTRA_ADDRESS_BOOK_INDEX_TITLES)
        && bundle.containsKey(Contacts.EXTRA_ADDRESS_BOOK_INDEX_COUNTS)) {
      String[] sections = bundle.getStringArray(Contacts.EXTRA_ADDRESS_BOOK_INDEX_TITLES);
      int[] counts = bundle.getIntArray(Contacts.EXTRA_ADDRESS_BOOK_INDEX_COUNTS);

      if (getExtraStartingSection()) {
        // Insert an additional unnamed section at the top of the list.
        String[] allSections = new String[sections.length + 1];
        int[] allCounts = new int[counts.length + 1];
        for (int i = 0; i < sections.length; i++) {
          allSections[i + 1] = sections[i];
          allCounts[i + 1] = counts[i];
        }
        allCounts[0] = 1;
        allSections[0] = "";
        setIndexer(new ContactsSectionIndexer(allSections, allCounts));
      } else {
        setIndexer(new ContactsSectionIndexer(sections, counts));
      }
    } else {
      setIndexer(null);
    }
  }

  protected boolean getExtraStartingSection() {
    return false;
  }

  @Override
  public int getViewTypeCount() {
    // We need a separate view type for each item type, plus another one for
    // each type with header, plus one for "other".
    return getItemViewTypeCount() * 2 + 1;
  }

  @Override
  public int getItemViewType(int partitionIndex, int position) {
    int type = super.getItemViewType(partitionIndex, position);
    if (!isUserProfile(position)
        && isSectionHeaderDisplayEnabled()
        && partitionIndex == getIndexedPartition()) {
      Placement placement = getItemPlacementInSection(position);
      return placement.firstInSection ? type : getItemViewTypeCount() + type;
    } else {
      return type;
    }
  }

  @Override
  public boolean isEmpty() {
    // TODO
    //        if (contactsListActivity.mProviderStatus != ProviderStatus.STATUS_NORMAL) {
    //            return true;
    //        }

    if (!mEmptyListEnabled) {
      return false;
    } else if (isSearchMode()) {
      return TextUtils.isEmpty(getQueryString());
    } else {
      return super.isEmpty();
    }
  }

  public boolean isLoading() {
    int count = getPartitionCount();
    for (int i = 0; i < count; i++) {
      Partition partition = getPartition(i);
      if (partition instanceof DirectoryPartition && ((DirectoryPartition) partition).isLoading()) {
        return true;
      }
    }
    return false;
  }

  /** Configures visibility parameters for the directory partitions. */
  public void configurePartitionsVisibility(boolean isInSearchMode) {
    for (int i = 0; i < getPartitionCount(); i++) {
      setShowIfEmpty(i, false);
      setHasHeader(i, isInSearchMode);
    }
  }

  // Sets header for the default partition.
  private void setDefaultPartitionHeader(boolean setHeader) {
    // Iterate in reverse here to ensure the first DEFAULT directory has header.
    // Both "Suggestions" and "All Contacts" directories have DEFAULT id.
    int defaultPartitionIndex = -1;
    for (int i = getPartitionCount() - 1; i >= 0; i--) {
      Partition partition = getPartition(i);
      if (partition instanceof DirectoryPartition
          && ((DirectoryPartition) partition).getDirectoryId() == Directory.DEFAULT) {
        defaultPartitionIndex = i;
      }
    }
    setHasHeader(defaultPartitionIndex, setHeader);
  }

  @Override
  protected View newHeaderView(Context context, int partition, Cursor cursor, ViewGroup parent) {
    LayoutInflater inflater = LayoutInflater.from(context);
    View view = inflater.inflate(R.layout.directory_header, parent, false);
    if (!getPinnedPartitionHeadersEnabled()) {
      // If the headers are unpinned, there is no need for their background
      // color to be non-transparent. Setting this transparent reduces maintenance for
      // non-pinned headers. We don't need to bother synchronizing the activity's
      // background color with the header background color.
      view.setBackground(null);
    }
    return view;
  }

  protected void bindWorkProfileIcon(final ContactListItemView view, int partitionId) {
    final Partition partition = getPartition(partitionId);
    if (partition instanceof DirectoryPartition) {
      final DirectoryPartition directoryPartition = (DirectoryPartition) partition;
      final long directoryId = directoryPartition.getDirectoryId();
      final long userType = ContactsUtils.determineUserType(directoryId, null);
      view.setWorkProfileIconEnabled(userType == ContactsUtils.USER_TYPE_WORK);
    }
  }

  @Override
  protected void bindHeaderView(View view, int partitionIndex, Cursor cursor) {
    Partition partition = getPartition(partitionIndex);
    if (!(partition instanceof DirectoryPartition)) {
      return;
    }

    DirectoryPartition directoryPartition = (DirectoryPartition) partition;
    long directoryId = directoryPartition.getDirectoryId();
    TextView labelTextView = (TextView) view.findViewById(R.id.label);
    TextView displayNameTextView = (TextView) view.findViewById(R.id.display_name);
    labelTextView.setText(directoryPartition.getLabel());
    if (!DirectoryCompat.isRemoteDirectoryId(directoryId)) {
      displayNameTextView.setText(null);
    } else {
      String directoryName = directoryPartition.getDisplayName();
      String displayName =
          !TextUtils.isEmpty(directoryName) ? directoryName : directoryPartition.getDirectoryType();
      displayNameTextView.setText(displayName);
    }

    final Resources res = getContext().getResources();
    final int headerPaddingTop =
        partitionIndex == 1 && getPartition(0).isEmpty()
            ? 0
            : res.getDimensionPixelOffset(R.dimen.directory_header_extra_top_padding);
    // There should be no extra padding at the top of the first directory header
    view.setPaddingRelative(
        view.getPaddingStart(), headerPaddingTop, view.getPaddingEnd(), view.getPaddingBottom());
  }

  /** Checks whether the contact entry at the given position represents the user's profile. */
  protected boolean isUserProfile(int position) {
    // The profile only ever appears in the first position if it is present.  So if the position
    // is anything beyond 0, it can't be the profile.
    boolean isUserProfile = false;
    if (position == 0) {
      int partition = getPartitionForPosition(position);
      if (partition >= 0) {
        // Save the old cursor position - the call to getItem() may modify the cursor
        // position.
        int offset = getCursor(partition).getPosition();
        Cursor cursor = (Cursor) getItem(position);
        if (cursor != null) {
          int profileColumnIndex = cursor.getColumnIndex(Contacts.IS_USER_PROFILE);
          if (profileColumnIndex != -1) {
            isUserProfile = cursor.getInt(profileColumnIndex) == 1;
          }
          // Restore the old cursor position.
          cursor.moveToPosition(offset);
        }
      }
    }
    return isUserProfile;
  }

  public boolean isPhotoSupported(int partitionIndex) {
    Partition partition = getPartition(partitionIndex);
    if (partition instanceof DirectoryPartition) {
      return ((DirectoryPartition) partition).isPhotoSupported();
    }
    return true;
  }

  /** Returns the currently selected filter. */
  public ContactListFilter getFilter() {
    return mFilter;
  }

  public void setFilter(ContactListFilter filter) {
    mFilter = filter;
  }

  // TODO: move sharable logic (bindXX() methods) to here with extra arguments

  /**
   * Loads the photo for the quick contact view and assigns the contact uri.
   *
   * @param photoIdColumn Index of the photo id column
   * @param photoUriColumn Index of the photo uri column. Optional: Can be -1
   * @param contactIdColumn Index of the contact id column
   * @param lookUpKeyColumn Index of the lookup key column
   * @param displayNameColumn Index of the display name column
   */
  protected void bindQuickContact(
      final ContactListItemView view,
      int partitionIndex,
      Cursor cursor,
      int photoIdColumn,
      int photoUriColumn,
      int contactIdColumn,
      int lookUpKeyColumn,
      int displayNameColumn) {
    long photoId = 0;
    if (!cursor.isNull(photoIdColumn)) {
      photoId = cursor.getLong(photoIdColumn);
    }

    QuickContactBadge quickContact = view.getQuickContact();
    quickContact.assignContactUri(
        getContactUri(partitionIndex, cursor, contactIdColumn, lookUpKeyColumn));
    if (CompatUtils.hasPrioritizedMimeType()) {
      // The Contacts app never uses the QuickContactBadge. Therefore, it is safe to assume
      // that only Dialer will use this QuickContact badge. This means prioritizing the phone
      // mimetype here is reasonable.
      quickContact.setPrioritizedMimeType(Phone.CONTENT_ITEM_TYPE);
    }
    Logger.get(mContext)
        .logQuickContactOnTouch(
            quickContact, InteractionEvent.Type.OPEN_QUICK_CONTACT_FROM_SEARCH, true);

    if (photoId != 0 || photoUriColumn == -1) {
      getPhotoLoader().loadThumbnail(quickContact, photoId, mDarkTheme, mCircularPhotos, null);
    } else {
      final String photoUriString = cursor.getString(photoUriColumn);
      final Uri photoUri = photoUriString == null ? null : Uri.parse(photoUriString);
      DefaultImageRequest request = null;
      if (photoUri == null) {
        request = getDefaultImageRequestFromCursor(cursor, displayNameColumn, lookUpKeyColumn);
      }
      getPhotoLoader().loadPhoto(quickContact, photoUri, -1, mDarkTheme, mCircularPhotos, request);
    }
  }

  @Override
  public boolean hasStableIds() {
    // Whenever bindViewId() is called, the values passed into setId() are stable or
    // stable-ish. For example, when one contact is modified we don't expect a second
    // contact's Contact._ID values to change.
    return true;
  }

  protected void bindViewId(final ContactListItemView view, Cursor cursor, int idColumn) {
    // Set a semi-stable id, so that talkback won't get confused when the list gets
    // refreshed. There is little harm in inserting the same ID twice.
    long contactId = cursor.getLong(idColumn);
    view.setId((int) (contactId % Integer.MAX_VALUE));
  }

  protected Uri getContactUri(
      int partitionIndex, Cursor cursor, int contactIdColumn, int lookUpKeyColumn) {
    long contactId = cursor.getLong(contactIdColumn);
    String lookupKey = cursor.getString(lookUpKeyColumn);
    long directoryId = ((DirectoryPartition) getPartition(partitionIndex)).getDirectoryId();
    Uri uri = Contacts.getLookupUri(contactId, lookupKey);
    if (uri != null && directoryId != Directory.DEFAULT) {
      uri =
          uri.buildUpon()
              .appendQueryParameter(
                  ContactsContract.DIRECTORY_PARAM_KEY, String.valueOf(directoryId))
              .build();
    }
    return uri;
  }

  /**
   * Retrieves the lookup key and display name from a cursor, and returns a {@link
   * DefaultImageRequest} containing these contact details
   *
   * @param cursor Contacts cursor positioned at the current row to retrieve contact details for
   * @param displayNameColumn Column index of the display name
   * @param lookupKeyColumn Column index of the lookup key
   * @return {@link DefaultImageRequest} with the displayName and identifier fields set to the
   *     display name and lookup key of the contact.
   */
  public DefaultImageRequest getDefaultImageRequestFromCursor(
      Cursor cursor, int displayNameColumn, int lookupKeyColumn) {
    final String displayName = cursor.getString(displayNameColumn);
    final String lookupKey = cursor.getString(lookupKeyColumn);
    return new DefaultImageRequest(displayName, lookupKey, mCircularPhotos);
  }
}