Moved KeyListAdapter into KeyListFragment

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListFragment.java

@@ -25,6 +25,8 @@ import android.app.ProgressDialog;
 import android.content.Context;
 import android.content.Intent;
 import android.database.Cursor;
+import android.graphics.Color;
+import android.graphics.PorterDuff;
 import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
@@ -46,11 +48,15 @@ import android.view.MenuItem;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.ViewGroup;
+import android.widget.ImageButton;
+import android.widget.ImageView;
 import android.widget.LinearLayout;
+import android.widget.TextView;
 
 import com.getbase.floatingactionbutton.FloatingActionButton;
 import com.getbase.floatingactionbutton.FloatingActionsMenu;
 import com.tonicartos.superslim.LayoutManager;
+import com.tonicartos.superslim.LinearSLM;
 
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
@@ -59,6 +65,7 @@ import org.sufficientlysecure.keychain.operations.results.ConsolidateResult;
 import org.sufficientlysecure.keychain.operations.results.DeleteResult;
 import org.sufficientlysecure.keychain.operations.results.ImportKeyResult;
 import org.sufficientlysecure.keychain.operations.results.OperationResult;
+import org.sufficientlysecure.keychain.pgp.KeyRing;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
 import org.sufficientlysecure.keychain.provider.KeychainDatabase;
@@ -67,9 +74,10 @@ import org.sufficientlysecure.keychain.service.CloudImportService;
 import org.sufficientlysecure.keychain.service.KeychainIntentService;
 import org.sufficientlysecure.keychain.service.PassphraseCacheService;
 import org.sufficientlysecure.keychain.service.ServiceProgressHandler;
-import org.sufficientlysecure.keychain.ui.adapter.KeyListAdapter;
+import org.sufficientlysecure.keychain.ui.adapter.RecyclerCursorAdapter;
 import org.sufficientlysecure.keychain.ui.dialog.DeleteKeyDialogFragment;
 import org.sufficientlysecure.keychain.ui.dialog.ProgressDialogFragment;
+import org.sufficientlysecure.keychain.ui.util.Highlighter;
 import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
 import org.sufficientlysecure.keychain.ui.util.Notify;
 import org.sufficientlysecure.keychain.util.ExportHelper;
@@ -85,8 +93,8 @@ import java.util.ArrayList;
  * StickyListHeaders library which does not extend upon ListView.
  */
 public class KeyListFragment extends LoaderFragment
-        implements SearchView.OnQueryTextListener, KeyListAdapter.OnClickListener,
+        implements SearchView.OnQueryTextListener, LoaderManager.LoaderCallbacks<Cursor>,
-        LoaderManager.LoaderCallbacks<Cursor>, FabContainer, ActionMode.Callback {
+        FabContainer, ActionMode.Callback {
 
     static final int REQUEST_REPEAT_PASSPHRASE = 1;
     static final int REQUEST_ACTION = 2;
@@ -178,7 +186,6 @@ public class KeyListFragment extends LoaderFragment
 
         // Create an empty adapter we will use to display the loaded data.
         mAdapter = new KeyListAdapter(getActivity());
-        mAdapter.setOnClickListener(this);
         mRecyclerView.setAdapter(mAdapter);
 
         // Prepare the loader. Either re-connect with an existing one,
@@ -198,6 +205,14 @@ public class KeyListFragment extends LoaderFragment
             KeyRings.HAS_DUPLICATE_USER_ID,
     };
 
+    static final int INDEX_MASTER_KEY_ID = 1;
+    static final int INDEX_USER_ID = 2;
+    static final int INDEX_IS_REVOKED = 3;
+    static final int INDEX_IS_EXPIRED = 4;
+    static final int INDEX_VERIFIED = 5;
+    static final int INDEX_HAS_ANY_SECRET = 6;
+    static final int INDEX_HAS_DUPLICATE_USER_ID = 7;
+
     static final String ORDER =
             KeyRings.HAS_ANY_SECRET + " DESC, UPPER(" + KeyRings.USER_ID + ") ASC";
 
@@ -268,40 +283,6 @@ public class KeyListFragment extends LoaderFragment
         mAdapter.swapCursor(null);
     }
 
-    @Override
-    public void onImportClick() {
-        importFile();
-    }
-
-    @Override
-    public void onKeySlingerClick(KeyListAdapter.KeyHolder holder, int position) {
-        Intent safeSlingerIntent = new Intent(getActivity(), SafeSlingerActivity.class);
-        safeSlingerIntent.putExtra(SafeSlingerActivity.EXTRA_MASTER_KEY_ID, holder.getMasterKeyId());
-        startActivityForResult(safeSlingerIntent, 0);
-    }
-
-    @Override
-    public void onKeyClick(KeyListAdapter.KeyHolder holder, int position) {
-        if (mActionMode == null) {
-            Intent viewIntent = new Intent(getActivity(), ViewKeyActivity.class);
-            viewIntent.setData(KeychainContract.KeyRings.buildGenericKeyRingUri(holder.getMasterKeyId()));
-            startActivity(viewIntent);
-        } else {
-            mAdapter.toggleSelection(position);
-            updateSelectionCount();
-        }
-    }
-
-    @Override
-    public void onKeyLongClick(KeyListAdapter.KeyHolder holder, int position) {
-        if (mActionMode == null) {
-            ((ActionBarActivity) getActivity()).startSupportActionMode(this);
-        }
-
-        mAdapter.toggleSelection(position);
-        updateSelectionCount();
-    }
-
     protected void encrypt(ActionMode mode, long[] masterKeyIds) {
         Intent intent = new Intent(getActivity(), EncryptFilesActivity.class);
         intent.setAction(EncryptFilesActivity.ACTION_ENCRYPT_DATA);
@@ -739,7 +720,6 @@ public class KeyListFragment extends LoaderFragment
             }
             case R.id.menu_key_list_multi_select_all: {
                 mAdapter.selectAll();
-                updateSelectionCount();
                 break;
             }
         }
@@ -752,7 +732,143 @@ public class KeyListFragment extends LoaderFragment
         mAdapter.clearSelection();
     }
 
-    private void updateSelectionCount() {
+    public class KeyListAdapter extends RecyclerCursorAdapter {
+
+        private Context mContext;
+        private ArrayList<Item> mItemList = new ArrayList<>();
+        private String mQuery;
+
+        public KeyListAdapter(Context context) {
+            super(null);
+
+            mContext = context;
+
+            setOnCursorSwappedListener(new OnCursorSwappedListener() {
+
+                @Override
+                public void onCursorSwapped(Cursor oldCursor, Cursor newCursor) {
+                    mItemList = new ArrayList<>();
+
+                    if (newCursor == null) {
+                        return;
+                    }
+
+                    int count = newCursor.getCount();
+                    if (count == 0) {
+                        return;
+                    }
+
+                    mItemList.add(new Item(Item.TYPE_MY_KEYS_HEADER, 0));
+
+                    int i;
+                    for (i = 0; i < count; i++) {
+                        if (newCursor.moveToPosition(i) && newCursor.getInt(INDEX_HAS_ANY_SECRET) != 0) {
+                            mItemList.add(new Item(Item.TYPE_KEY, 0, i));
+                        } else {
+                            break;
+                        }
+                    }
+
+                    if (mItemList.size() == 1) {
+                        if (mQuery == null || mQuery.isEmpty()) {
+                            mItemList.add(new Item(Item.TYPE_IMPORT, 0));
+                        } else {
+                            mItemList.clear();
+                        }
+                    }
+
+                    char prevHeaderChar = '\0';
+                    int prevHeaderIndex = 0;
+                    for (; i < count; i++) {
+                        if (newCursor.moveToPosition(i)) {
+                            char headerChar = Character.toUpperCase(newCursor.getString(INDEX_USER_ID).charAt(0));
+
+                            if (headerChar != prevHeaderChar) {
+                                prevHeaderChar = headerChar;
+                                prevHeaderIndex = mItemList.size();
+
+                                mItemList.add(new Item(Item.TYPE_CHAR_HEADER, prevHeaderIndex));
+                            }
+
+                            mItemList.add(new Item(Item.TYPE_KEY, prevHeaderIndex, i));
+                        }
+                    }
+
+                    mItemList.add(new Item(Item.TYPE_FOOTER, mItemList.size() - 1));
+                }
+
+            });
+        }
+
+        @Override
+        public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+            RecyclerView.ViewHolder viewHolder = null;
+            switch (viewType) {
+                case Item.TYPE_MY_KEYS_HEADER:
+
+                case Item.TYPE_CHAR_HEADER:
+                    viewHolder = new HeaderHolder(LayoutInflater.from(mContext)
+                            .inflate(R.layout.key_list_header, parent, false));
+                    break;
+
+                case Item.TYPE_IMPORT:
+                    viewHolder = new ImportKeyHolder(LayoutInflater.from(mContext)
+                            .inflate(R.layout.key_list_import, parent, false));
+                    break;
+
+                case Item.TYPE_KEY:
+                    viewHolder = new KeyHolder(LayoutInflater.from(mContext)
+                            .inflate(R.layout.key_list_key, parent, false));
+                    break;
+
+                case Item.TYPE_FOOTER:
+                    viewHolder = new RecyclerView.ViewHolder(LayoutInflater.from(mContext)
+                            .inflate(R.layout.key_list_footer, parent, false)) {
+                    };
+                    break;
+            }
+
+            return viewHolder;
+        }
+
+        @Override
+        public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
+            Item item = mItemList.get(position);
+            switch (item.mType) {
+                case Item.TYPE_MY_KEYS_HEADER:
+
+                case Item.TYPE_CHAR_HEADER:
+                    ((HeaderHolder) holder).bind(position);
+                    break;
+
+                case Item.TYPE_KEY:
+                    ((KeyHolder) holder).bind(position);
+                    break;
+            }
+
+            View itemView = holder.itemView;
+            LayoutManager.LayoutParams layoutParams = new LayoutManager.LayoutParams(itemView.getLayoutParams());
+            layoutParams.setSlm(LinearSLM.ID);
+            layoutParams.setFirstPosition(item.mHeaderIndex);
+            itemView.setLayoutParams(layoutParams);
+        }
+
+        @Override
+        public int getItemViewType(int position) {
+            return mItemList.get(position).mType;
+        }
+
+        @Override
+        public int getItemCount() {
+            return mItemList.size();
+        }
+
+        public void toggleSelection(int position) {
+            Item item = mItemList.get(position);
+            item.mSelected = item.mSelectable && !item.mSelected;
+
+            notifyDataSetChanged();
+
             int count = mAdapter.getSelectionCount();
             if (count == 0) {
                 mActionMode.finish();
@@ -761,4 +877,302 @@ public class KeyListFragment extends LoaderFragment
             }
         }
 
+        public void selectAll() {
+            for (Item item : mItemList) {
+                item.mSelected = item.mSelectable;
+            }
+
+            notifyDataSetChanged();
+
+            int count = mAdapter.getSelectionCount();
+            mActionMode.setTitle(getResources().getQuantityString(R.plurals.key_list_selected_keys, count, count));
+        }
+
+        public void clearSelection() {
+            for (Item item : mItemList) {
+                item.mSelected = false;
+            }
+
+            notifyDataSetChanged();
+        }
+
+        public int getSelectionCount() {
+            int count = 0;
+            for (Item item : mItemList) {
+                if (item.mSelected) {
+                    count++;
+                }
+            }
+
+            return count;
+        }
+
+        public boolean isAnySecretSelected() {
+            for (Item item : mItemList) {
+                if (item.mSelected
+                        && mCursor.moveToPosition(item.mCursorPosition)
+                        && mCursor.getInt(INDEX_HAS_ANY_SECRET) != 0) {
+                    return true;
+                }
+            }
+
+            return false;
+        }
+
+        public long[] getCurrentSelectedMasterKeyIds() {
+            long[] ids = new long[getSelectionCount()];
+            int i = 0;
+            for (Item item : mItemList) {
+                if (item.mSelected
+                        && mCursor.moveToPosition(item.mCursorPosition)) {
+                    ids[i++] = mCursor.getLong(INDEX_MASTER_KEY_ID);
+                }
+            }
+
+            return ids;
+        }
+
+        public void setSearchQuery(String query) {
+            mQuery = query;
+        }
+
+        private class Item {
+
+            public static final int TYPE_MY_KEYS_HEADER = 0;
+            public static final int TYPE_CHAR_HEADER = 1;
+            public static final int TYPE_IMPORT = 2;
+            public static final int TYPE_KEY = 3;
+            public static final int TYPE_FOOTER = 4;
+
+            private int mType, mHeaderIndex, mCursorPosition;
+            private boolean mSelectable, mSelected;
+
+            private Item(int type, int headerIndex, int cursorPosition) {
+                mType = type;
+                mHeaderIndex = headerIndex;
+                mCursorPosition = cursorPosition;
+                mSelectable = cursorPosition != -1;
+            }
+
+            private Item(int type, int headerIndex) {
+                this(type, headerIndex, -1);
+            }
+
+        }
+
+        public class HeaderHolder extends RecyclerView.ViewHolder {
+
+            private TextView mTextView, mCountTextView;
+
+            private HeaderHolder(View itemView) {
+                super(itemView);
+
+                mTextView = (TextView) itemView.findViewById(R.id.key_list_header_text);
+                mCountTextView = (TextView) itemView.findViewById(R.id.key_list_header_count);
+            }
+
+            private void bind(int position) {
+                Item item = mItemList.get(position);
+                switch (item.mType) {
+                    case Item.TYPE_MY_KEYS_HEADER: {
+                        mTextView.setText(mContext.getString(R.string.my_keys));
+
+                        int count = mCursor.getCount();
+                        mCountTextView.setText(mContext.getResources().getQuantityString(R.plurals.n_keys, count, count));
+                        mCountTextView.setVisibility(View.VISIBLE);
+                        break;
+                    }
+
+                    case Item.TYPE_CHAR_HEADER: {
+                        Item nextItem = mItemList.get(position + 1);
+                        mCursor.moveToPosition(nextItem.mCursorPosition);
+
+                        String userId = mCursor.getString(INDEX_USER_ID),
+                                text = mContext.getString(R.string.user_id_no_name);
+                        if (userId != null && !userId.isEmpty()) {
+                            text = String.valueOf(Character.toUpperCase(userId.charAt(0)));
+                        }
+                        mTextView.setText(text);
+
+                        if (position == 0) {
+                            int count = mCursor.getCount();
+                            mCountTextView.setText(mContext.getResources().getQuantityString(R.plurals.n_keys, count, count));
+                            mCountTextView.setVisibility(View.VISIBLE);
+                        } else {
+                            mCountTextView.setVisibility(View.GONE);
+                        }
+                        break;
+                    }
+                }
+            }
+
+        }
+
+        public class ImportKeyHolder extends RecyclerView.ViewHolder {
+
+            public ImportKeyHolder(View itemView) {
+                super(itemView);
+
+                itemView.setOnClickListener(new View.OnClickListener() {
+
+                    @Override
+                    public void onClick(View v) {
+                        importFile();
+                    }
+
+                });
+            }
+
+        }
+
+        public class KeyHolder extends RecyclerView.ViewHolder {
+
+            private View mDividerView;
+            private TextView mNameTextView, mEmailTextView;
+            private LinearLayout mSlingerLayout;
+            private ImageButton mSlingerImageButton;
+            private ImageView mStatusImageView;
+
+            private int mPosition;
+            private long mMasterKeyId;
+
+            private KeyHolder(View itemView) {
+                super(itemView);
+
+                mDividerView = itemView.findViewById(R.id.key_list_key_divider);
+                mNameTextView = (TextView) itemView.findViewById(R.id.key_list_key_name);
+                mEmailTextView = (TextView) itemView.findViewById(R.id.key_list_key_email);
+                mSlingerLayout = (LinearLayout) itemView.findViewById(R.id.key_list_key_slinger_view);
+                mSlingerImageButton = (ImageButton) itemView.findViewById(R.id.key_list_key_slinger_button);
+                mStatusImageView = (ImageView) itemView.findViewById(R.id.key_list_key_status_icon);
+
+                itemView.setOnClickListener(new View.OnClickListener() {
+
+                    @Override
+                    public void onClick(View v) {
+                        if (mActionMode == null) {
+                            Intent viewIntent = new Intent(getActivity(), ViewKeyActivity.class);
+                            viewIntent.setData(KeychainContract.KeyRings.buildGenericKeyRingUri(mMasterKeyId));
+                            startActivity(viewIntent);
+                        } else {
+                            mAdapter.toggleSelection(mPosition);
+                        }
+                    }
+
+                });
+
+                itemView.setOnLongClickListener(new View.OnLongClickListener() {
+
+                    @Override
+                    public boolean onLongClick(View v) {
+                        if (mActionMode == null) {
+                            ((ActionBarActivity) getActivity()).startSupportActionMode(KeyListFragment.this);
+                        }
+
+                        mAdapter.toggleSelection(mPosition);
+                        return true;
+                    }
+
+                });
+
+                mSlingerImageButton.setColorFilter(mContext.getResources().getColor(R.color.tertiary_text_light),
+                        PorterDuff.Mode.SRC_IN);
+                mSlingerImageButton.setOnClickListener(new View.OnClickListener() {
+
+                    @Override
+                    public void onClick(View v) {
+                        Intent safeSlingerIntent = new Intent(getActivity(), SafeSlingerActivity.class);
+                        safeSlingerIntent.putExtra(SafeSlingerActivity.EXTRA_MASTER_KEY_ID, mMasterKeyId);
+                        startActivityForResult(safeSlingerIntent, 0);
+                    }
+
+                });
+            }
+
+            private void bind(int position) {
+                mPosition = position;
+
+                Item item = mItemList.get(position);
+                mCursor.moveToPosition(item.mCursorPosition);
+
+                if (item.mSelected) {
+                    // selected position color
+                    itemView.setBackgroundColor(itemView.getResources().getColor(R.color.emphasis));
+                } else {
+                    // default color
+                    itemView.setBackgroundColor(Color.TRANSPARENT);
+                }
+
+                Item prevItem = mItemList.get(position - 1);
+                if (prevItem.mType == Item.TYPE_MY_KEYS_HEADER
+                        || prevItem.mType == Item.TYPE_CHAR_HEADER) {
+                    mDividerView.setVisibility(View.GONE);
+                } else {
+                    mDividerView.setVisibility(View.VISIBLE);
+                }
+
+                Highlighter highlighter = new Highlighter(mContext, mQuery);
+
+                // set name and stuff, common to both key types
+                String userId = mCursor.getString(INDEX_USER_ID);
+                KeyRing.UserId userIdSplit = KeyRing.splitUserId(userId);
+                if (userIdSplit.name != null) {
+                    mNameTextView.setText(highlighter.highlight(userIdSplit.name));
+                } else {
+                    mNameTextView.setText(R.string.user_id_no_name);
+                }
+                if (userIdSplit.email != null) {
+                    mEmailTextView.setText(highlighter.highlight(userIdSplit.email));
+                    mEmailTextView.setVisibility(View.VISIBLE);
+                } else {
+                    mEmailTextView.setVisibility(View.GONE);
+                }
+
+                // set edit button and status, specific by key type
+                long masterKeyId = mCursor.getLong(INDEX_MASTER_KEY_ID);
+                boolean isSecret = mCursor.getInt(INDEX_HAS_ANY_SECRET) != 0;
+                boolean isRevoked = mCursor.getInt(INDEX_IS_REVOKED) > 0;
+                boolean isExpired = mCursor.getInt(INDEX_IS_EXPIRED) != 0;
+                boolean isVerified = mCursor.getInt(INDEX_VERIFIED) > 0;
+                boolean hasDuplicate = mCursor.getInt(INDEX_HAS_DUPLICATE_USER_ID) == 1;
+
+                mMasterKeyId = masterKeyId;
+
+                // Note: order is important!
+                if (isRevoked) {
+                    KeyFormattingUtils.setStatusImage(mContext, mStatusImageView, null, KeyFormattingUtils.State.REVOKED, R.color.bg_gray);
+                    mStatusImageView.setVisibility(View.VISIBLE);
+                    mSlingerLayout.setVisibility(View.GONE);
+                    mNameTextView.setTextColor(mContext.getResources().getColor(R.color.bg_gray));
+                    mEmailTextView.setTextColor(mContext.getResources().getColor(R.color.bg_gray));
+                } else if (isExpired) {
+                    KeyFormattingUtils.setStatusImage(mContext, mStatusImageView, null, KeyFormattingUtils.State.EXPIRED, R.color.bg_gray);
+                    mStatusImageView.setVisibility(View.VISIBLE);
+                    mSlingerLayout.setVisibility(View.GONE);
+                    mNameTextView.setTextColor(mContext.getResources().getColor(R.color.bg_gray));
+                    mEmailTextView.setTextColor(mContext.getResources().getColor(R.color.bg_gray));
+                } else if (isSecret) {
+                    mStatusImageView.setVisibility(View.GONE);
+                    mSlingerLayout.setVisibility(View.VISIBLE);
+                    mNameTextView.setTextColor(mContext.getResources().getColor(R.color.black));
+                    mEmailTextView.setTextColor(mContext.getResources().getColor(R.color.black));
+                } else {
+                    // this is a public key - show if it's verified
+                    if (isVerified) {
+                        KeyFormattingUtils.setStatusImage(mContext, mStatusImageView, KeyFormattingUtils.State.VERIFIED);
+                        mStatusImageView.setVisibility(View.VISIBLE);
+                    } else {
+                        KeyFormattingUtils.setStatusImage(mContext, mStatusImageView, KeyFormattingUtils.State.UNVERIFIED);
+                        mStatusImageView.setVisibility(View.VISIBLE);
+                    }
+                    mSlingerLayout.setVisibility(View.GONE);
+                    mNameTextView.setTextColor(mContext.getResources().getColor(R.color.black));
+                    mEmailTextView.setTextColor(mContext.getResources().getColor(R.color.black));
+                }
+            }
+
+        }
+
+    }
+
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/KeyListAdapter.java

@@ -1,491 +0,0 @@
-/*
- * Copyright (C) 2013-2014 Dominik Schürmann <dominik@dominikschuermann.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package org.sufficientlysecure.keychain.ui.adapter;
-
-import android.content.Context;
-import android.database.Cursor;
-import android.graphics.Color;
-import android.graphics.PorterDuff;
-import android.support.v7.widget.RecyclerView;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.ImageButton;
-import android.widget.ImageView;
-import android.widget.LinearLayout;
-import android.widget.TextView;
-
-import com.tonicartos.superslim.LayoutManager;
-import com.tonicartos.superslim.LinearSLM;
-
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.pgp.KeyRing;
-import org.sufficientlysecure.keychain.ui.util.Highlighter;
-import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
-
-import java.util.ArrayList;
-
-public class KeyListAdapter extends RecyclerCursorAdapter {
-
-    static final int INDEX_MASTER_KEY_ID = 1;
-    static final int INDEX_USER_ID = 2;
-    static final int INDEX_IS_REVOKED = 3;
-    static final int INDEX_IS_EXPIRED = 4;
-    static final int INDEX_VERIFIED = 5;
-    static final int INDEX_HAS_ANY_SECRET = 6;
-    static final int INDEX_HAS_DUPLICATE_USER_ID = 7;
-
-    private Context mContext;
-    private ArrayList<Item> mItemList = new ArrayList<>();
-    private OnClickListener mOnClickListener;
-    private String mQuery;
-
-    public KeyListAdapter(Context context) {
-        super(null);
-
-        mContext = context;
-
-        setOnCursorSwappedListener(new OnCursorSwappedListener() {
-
-            @Override
-            public void onCursorSwapped(Cursor oldCursor, Cursor newCursor) {
-                mItemList = new ArrayList<>();
-
-                if (newCursor == null) {
-                    return;
-                }
-
-                int count = newCursor.getCount();
-                if (count == 0) {
-                    return;
-                }
-
-                mItemList.add(new Item(Item.TYPE_MY_KEYS_HEADER, 0));
-
-                int i;
-                for (i = 0; i < count; i++) {
-                    if (newCursor.moveToPosition(i) && newCursor.getInt(INDEX_HAS_ANY_SECRET) != 0) {
-                        mItemList.add(new Item(Item.TYPE_KEY, 0, i));
-                    } else {
-                        break;
-                    }
-                }
-
-                if (mItemList.size() == 1) {
-                    if (mQuery == null || mQuery.isEmpty()) {
-                        mItemList.add(new Item(Item.TYPE_IMPORT, 0));
-                    } else {
-                        mItemList.clear();
-                    }
-                }
-
-                char prevHeaderChar = '\0';
-                int prevHeaderIndex = 0;
-                for (; i < count; i++) {
-                    if (newCursor.moveToPosition(i)) {
-                        char headerChar = Character.toUpperCase(newCursor.getString(INDEX_USER_ID).charAt(0));
-
-                        if (headerChar != prevHeaderChar) {
-                            prevHeaderChar = headerChar;
-                            prevHeaderIndex = mItemList.size();
-
-                            mItemList.add(new Item(Item.TYPE_CHAR_HEADER, prevHeaderIndex));
-                        }
-
-                        mItemList.add(new Item(Item.TYPE_KEY, prevHeaderIndex, i));
-                    }
-                }
-
-                mItemList.add(new Item(Item.TYPE_FOOTER, mItemList.size() - 1));
-            }
-
-        });
-    }
-
-    @Override
-    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
-        RecyclerView.ViewHolder viewHolder = null;
-        switch (viewType) {
-            case Item.TYPE_MY_KEYS_HEADER:
-
-            case Item.TYPE_CHAR_HEADER:
-                viewHolder = new HeaderHolder(LayoutInflater.from(mContext)
-                        .inflate(R.layout.key_list_header, parent, false));
-                break;
-
-            case Item.TYPE_IMPORT:
-                viewHolder = new ImportKeyHolder(LayoutInflater.from(mContext)
-                        .inflate(R.layout.key_list_import, parent, false));
-                break;
-
-            case Item.TYPE_KEY:
-                viewHolder = new KeyHolder(LayoutInflater.from(mContext)
-                        .inflate(R.layout.key_list_key, parent, false));
-                break;
-
-            case Item.TYPE_FOOTER:
-                viewHolder = new RecyclerView.ViewHolder(LayoutInflater.from(mContext)
-                        .inflate(R.layout.key_list_footer, parent, false)) {
-                };
-                break;
-        }
-
-        return viewHolder;
-    }
-
-    @Override
-    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
-        Item item = mItemList.get(position);
-        switch (item.mType) {
-            case Item.TYPE_MY_KEYS_HEADER:
-
-            case Item.TYPE_CHAR_HEADER:
-                ((HeaderHolder) holder).bind(position);
-                break;
-
-            case Item.TYPE_KEY:
-                ((KeyHolder) holder).bind(position);
-                break;
-        }
-
-        View itemView = holder.itemView;
-        LayoutManager.LayoutParams layoutParams = new LayoutManager.LayoutParams(itemView.getLayoutParams());
-        layoutParams.setSlm(LinearSLM.ID);
-        layoutParams.setFirstPosition(item.mHeaderIndex);
-        itemView.setLayoutParams(layoutParams);
-    }
-
-    @Override
-    public int getItemViewType(int position) {
-        return mItemList.get(position).mType;
-    }
-
-    @Override
-    public int getItemCount() {
-        return mItemList.size();
-    }
-
-    public void toggleSelection(int position) {
-        Item item = mItemList.get(position);
-        item.mSelected = item.mSelectable && !item.mSelected;
-
-        notifyDataSetChanged();
-    }
-
-    public void selectAll() {
-        for (Item item : mItemList) {
-            item.mSelected = item.mSelectable;
-        }
-
-        notifyDataSetChanged();
-    }
-
-    public void clearSelection() {
-        for (Item item : mItemList) {
-            item.mSelected = false;
-        }
-
-        notifyDataSetChanged();
-    }
-
-    public int getSelectionCount() {
-        int count = 0;
-        for (Item item : mItemList) {
-            if (item.mSelected) {
-                count++;
-            }
-        }
-
-        return count;
-    }
-
-    public boolean isAnySecretSelected() {
-        for (Item item : mItemList) {
-            if (item.mSelected
-                    && mCursor.moveToPosition(item.mCursorPosition)
-                    && mCursor.getInt(INDEX_HAS_ANY_SECRET) != 0) {
-                return true;
-            }
-        }
-
-        return false;
-    }
-
-    public long[] getCurrentSelectedMasterKeyIds() {
-        long[] ids = new long[getSelectionCount()];
-        int i = 0;
-        for (Item item : mItemList) {
-            if (item.mSelected
-                    && mCursor.moveToPosition(item.mCursorPosition)) {
-                ids[i++] = mCursor.getLong(INDEX_MASTER_KEY_ID);
-            }
-        }
-
-        return ids;
-    }
-
-    public void setOnClickListener(OnClickListener onClickListener) {
-        mOnClickListener = onClickListener;
-    }
-
-    public void setSearchQuery(String query) {
-        mQuery = query;
-    }
-
-    private class Item {
-
-        public static final int TYPE_MY_KEYS_HEADER = 0;
-        public static final int TYPE_CHAR_HEADER = 1;
-        public static final int TYPE_IMPORT = 2;
-        public static final int TYPE_KEY = 3;
-        public static final int TYPE_FOOTER = 4;
-
-        private int mType, mHeaderIndex, mCursorPosition;
-        private boolean mSelectable, mSelected;
-
-        private Item(int type, int headerIndex, int cursorPosition) {
-            mType = type;
-            mHeaderIndex = headerIndex;
-            mCursorPosition = cursorPosition;
-            mSelectable = cursorPosition != -1;
-        }
-
-        private Item(int type, int headerIndex) {
-            this(type, headerIndex, -1);
-        }
-
-    }
-
-    public class HeaderHolder extends RecyclerView.ViewHolder {
-
-        private TextView mTextView, mCountTextView;
-
-        private HeaderHolder(View itemView) {
-            super(itemView);
-
-            mTextView = (TextView) itemView.findViewById(R.id.key_list_header_text);
-            mCountTextView = (TextView) itemView.findViewById(R.id.key_list_header_count);
-        }
-
-        private void bind(int position) {
-            Item item = mItemList.get(position);
-            switch (item.mType) {
-                case Item.TYPE_MY_KEYS_HEADER: {
-                    mTextView.setText(mContext.getString(R.string.my_keys));
-
-                    int count = mCursor.getCount();
-                    mCountTextView.setText(mContext.getResources().getQuantityString(R.plurals.n_keys, count, count));
-                    mCountTextView.setVisibility(View.VISIBLE);
-                    break;
-                }
-
-                case Item.TYPE_CHAR_HEADER: {
-                    Item nextItem = mItemList.get(position + 1);
-                    mCursor.moveToPosition(nextItem.mCursorPosition);
-
-                    String userId = mCursor.getString(INDEX_USER_ID),
-                            text = mContext.getString(R.string.user_id_no_name);
-                    if (userId != null && !userId.isEmpty()) {
-                        text = String.valueOf(Character.toUpperCase(userId.charAt(0)));
-                    }
-                    mTextView.setText(text);
-
-                    if (position == 0) {
-                        int count = mCursor.getCount();
-                        mCountTextView.setText(mContext.getResources().getQuantityString(R.plurals.n_keys, count, count));
-                        mCountTextView.setVisibility(View.VISIBLE);
-                    } else {
-                        mCountTextView.setVisibility(View.GONE);
-                    }
-                    break;
-                }
-            }
-        }
-
-    }
-
-    public class ImportKeyHolder extends RecyclerView.ViewHolder {
-
-        public ImportKeyHolder(View itemView) {
-            super(itemView);
-
-            itemView.setOnClickListener(new View.OnClickListener() {
-
-                @Override
-                public void onClick(View v) {
-                    mOnClickListener.onImportClick();
-                }
-
-            });
-        }
-
-    }
-
-    public class KeyHolder extends RecyclerView.ViewHolder {
-
-        private View mDividerView;
-        private TextView mNameTextView, mEmailTextView;
-        private LinearLayout mSlingerLayout;
-        private ImageButton mSlingerImageButton;
-        private ImageView mStatusImageView;
-
-        private int mPosition;
-        private long mMasterKeyId;
-
-        private KeyHolder(View itemView) {
-            super(itemView);
-
-            mDividerView = itemView.findViewById(R.id.key_list_key_divider);
-            mNameTextView = (TextView) itemView.findViewById(R.id.key_list_key_name);
-            mEmailTextView = (TextView) itemView.findViewById(R.id.key_list_key_email);
-            mSlingerLayout = (LinearLayout) itemView.findViewById(R.id.key_list_key_slinger_view);
-            mSlingerImageButton = (ImageButton) itemView.findViewById(R.id.key_list_key_slinger_button);
-            mStatusImageView = (ImageView) itemView.findViewById(R.id.key_list_key_status_icon);
-
-            itemView.setOnClickListener(new View.OnClickListener() {
-
-                @Override
-                public void onClick(View v) {
-                    mOnClickListener.onKeyClick(KeyHolder.this, mPosition);
-                }
-
-            });
-
-            itemView.setOnLongClickListener(new View.OnLongClickListener() {
-
-                @Override
-                public boolean onLongClick(View v) {
-                    mOnClickListener.onKeyLongClick(KeyHolder.this, mPosition);
-                    return true;
-                }
-
-            });
-
-            mSlingerImageButton.setColorFilter(mContext.getResources().getColor(R.color.tertiary_text_light),
-                    PorterDuff.Mode.SRC_IN);
-            mSlingerImageButton.setOnClickListener(new View.OnClickListener() {
-
-                @Override
-                public void onClick(View v) {
-                    mOnClickListener.onKeySlingerClick(KeyHolder.this, mPosition);
-                }
-
-            });
-        }
-
-        private void bind(int position) {
-            mPosition = position;
-
-            Item item = mItemList.get(position);
-            mCursor.moveToPosition(item.mCursorPosition);
-
-            if (item.mSelected) {
-                // selected position color
-                itemView.setBackgroundColor(itemView.getResources().getColor(R.color.emphasis));
-            } else {
-                // default color
-                itemView.setBackgroundColor(Color.TRANSPARENT);
-            }
-
-            Item prevItem = mItemList.get(position - 1);
-            if (prevItem.mType == Item.TYPE_MY_KEYS_HEADER
-                    || prevItem.mType == Item.TYPE_CHAR_HEADER) {
-                mDividerView.setVisibility(View.GONE);
-            } else {
-                mDividerView.setVisibility(View.VISIBLE);
-            }
-
-            Highlighter highlighter = new Highlighter(mContext, mQuery);
-
-            // set name and stuff, common to both key types
-            String userId = mCursor.getString(INDEX_USER_ID);
-            KeyRing.UserId userIdSplit = KeyRing.splitUserId(userId);
-            if (userIdSplit.name != null) {
-                mNameTextView.setText(highlighter.highlight(userIdSplit.name));
-            } else {
-                mNameTextView.setText(R.string.user_id_no_name);
-            }
-            if (userIdSplit.email != null) {
-                mEmailTextView.setText(highlighter.highlight(userIdSplit.email));
-                mEmailTextView.setVisibility(View.VISIBLE);
-            } else {
-                mEmailTextView.setVisibility(View.GONE);
-            }
-
-            // set edit button and status, specific by key type
-            long masterKeyId = mCursor.getLong(INDEX_MASTER_KEY_ID);
-            boolean isSecret = mCursor.getInt(INDEX_HAS_ANY_SECRET) != 0;
-            boolean isRevoked = mCursor.getInt(INDEX_IS_REVOKED) > 0;
-            boolean isExpired = mCursor.getInt(INDEX_IS_EXPIRED) != 0;
-            boolean isVerified = mCursor.getInt(INDEX_VERIFIED) > 0;
-            boolean hasDuplicate = mCursor.getInt(INDEX_HAS_DUPLICATE_USER_ID) == 1;
-
-            mMasterKeyId = masterKeyId;
-
-            // Note: order is important!
-            if (isRevoked) {
-                KeyFormattingUtils.setStatusImage(mContext, mStatusImageView, null, KeyFormattingUtils.State.REVOKED, R.color.bg_gray);
-                mStatusImageView.setVisibility(View.VISIBLE);
-                mSlingerLayout.setVisibility(View.GONE);
-                mNameTextView.setTextColor(mContext.getResources().getColor(R.color.bg_gray));
-                mEmailTextView.setTextColor(mContext.getResources().getColor(R.color.bg_gray));
-            } else if (isExpired) {
-                KeyFormattingUtils.setStatusImage(mContext, mStatusImageView, null, KeyFormattingUtils.State.EXPIRED, R.color.bg_gray);
-                mStatusImageView.setVisibility(View.VISIBLE);
-                mSlingerLayout.setVisibility(View.GONE);
-                mNameTextView.setTextColor(mContext.getResources().getColor(R.color.bg_gray));
-                mEmailTextView.setTextColor(mContext.getResources().getColor(R.color.bg_gray));
-            } else if (isSecret) {
-                mStatusImageView.setVisibility(View.GONE);
-                mSlingerLayout.setVisibility(View.VISIBLE);
-                mNameTextView.setTextColor(mContext.getResources().getColor(R.color.black));
-                mEmailTextView.setTextColor(mContext.getResources().getColor(R.color.black));
-            } else {
-                // this is a public key - show if it's verified
-                if (isVerified) {
-                    KeyFormattingUtils.setStatusImage(mContext, mStatusImageView, KeyFormattingUtils.State.VERIFIED);
-                    mStatusImageView.setVisibility(View.VISIBLE);
-                } else {
-                    KeyFormattingUtils.setStatusImage(mContext, mStatusImageView, KeyFormattingUtils.State.UNVERIFIED);
-                    mStatusImageView.setVisibility(View.VISIBLE);
-                }
-                mSlingerLayout.setVisibility(View.GONE);
-                mNameTextView.setTextColor(mContext.getResources().getColor(R.color.black));
-                mEmailTextView.setTextColor(mContext.getResources().getColor(R.color.black));
-            }
-        }
-
-        public long getMasterKeyId() {
-            return mMasterKeyId;
-        }
-
-    }
-
-    public interface OnClickListener {
-
-        public void onImportClick();
-
-        public void onKeySlingerClick(KeyHolder holder, int position);
-
-        public void onKeyClick(KeyHolder holder, int position);
-
-        public void onKeyLongClick(KeyHolder holder, int position);
-
-    }
-
-}