mirror of
https://github.com/oxen-io/session-android.git
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150 lines
5.1 KiB
Java
150 lines
5.1 KiB
Java
/**
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* Copyright (C) 2011 Whisper Systems
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.thoughtcrime.securesms;
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import android.content.Context;
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import android.database.Cursor;
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import android.os.Handler;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.AbsListView;
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import android.widget.CursorAdapter;
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import org.thoughtcrime.securesms.crypto.MasterSecret;
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import org.thoughtcrime.securesms.database.DatabaseFactory;
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import org.thoughtcrime.securesms.database.MmsSmsColumns;
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import org.thoughtcrime.securesms.database.MmsSmsDatabase;
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import org.thoughtcrime.securesms.database.SmsDatabase;
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import org.thoughtcrime.securesms.database.model.MessageRecord;
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import org.thoughtcrime.securesms.util.LRUCache;
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import java.lang.ref.SoftReference;
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import java.util.Collections;
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import java.util.Map;
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/**
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* A cursor adapter for a conversation thread. Ultimately
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* used by ComposeMessageActivity to display a conversation
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* thread in a ListActivity.
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*
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* @author Moxie Marlinspike
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*
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*/
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public class ConversationAdapter extends CursorAdapter implements AbsListView.RecyclerListener {
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private static final int MAX_CACHE_SIZE = 40;
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private final Map<String,SoftReference<MessageRecord>> messageRecordCache =
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Collections.synchronizedMap(new LRUCache<String, SoftReference<MessageRecord>>(MAX_CACHE_SIZE));
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private final Handler failedIconClickHandler;
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private final Context context;
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private final MasterSecret masterSecret;
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private final boolean groupThread;
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private final LayoutInflater inflater;
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public ConversationAdapter(Context context, MasterSecret masterSecret,
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Handler failedIconClickHandler, boolean groupThread)
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{
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super(context, null);
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this.context = context;
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this.masterSecret = masterSecret;
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this.failedIconClickHandler = failedIconClickHandler;
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this.groupThread = groupThread;
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this.inflater = (LayoutInflater)context
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.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
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}
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@Override
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public void bindView(View view, Context context, Cursor cursor) {
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ConversationItem item = (ConversationItem)view;
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long id = cursor.getLong(cursor.getColumnIndexOrThrow(SmsDatabase.ID));
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String type = cursor.getString(cursor.getColumnIndexOrThrow(MmsSmsDatabase.TRANSPORT));
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MessageRecord messageRecord = getMessageRecord(id, cursor, type);
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item.set(masterSecret, messageRecord, failedIconClickHandler, groupThread);
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}
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@Override
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public View newView(Context context, Cursor cursor, ViewGroup parent) {
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View view;
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int type = getItemViewType(cursor);
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if (type == 0) view = inflater.inflate(R.layout.conversation_item_sent, parent, false);
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else view = inflater.inflate(R.layout.conversation_item_received, parent, false);
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bindView(view, context, cursor);
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return view;
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}
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@Override
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public int getViewTypeCount() {
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return 2;
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}
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@Override
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public int getItemViewType(int position) {
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Cursor cursor = (Cursor)getItem(position);
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return getItemViewType(cursor);
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}
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private int getItemViewType(Cursor cursor) {
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long id = cursor.getLong(cursor.getColumnIndexOrThrow(MmsSmsColumns.ID));
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String type = cursor.getString(cursor.getColumnIndexOrThrow(MmsSmsDatabase.TRANSPORT));
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MessageRecord messageRecord = getMessageRecord(id, cursor, type);
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if (messageRecord.isOutgoing()) return 0;
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else return 1;
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}
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private MessageRecord getMessageRecord(long messageId, Cursor cursor, String type) {
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SoftReference<MessageRecord> reference = messageRecordCache.get(type + messageId);
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if (reference != null) {
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MessageRecord record = reference.get();
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if (record != null)
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return record;
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}
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MmsSmsDatabase.Reader reader = DatabaseFactory.getMmsSmsDatabase(context)
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.readerFor(cursor, masterSecret);
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MessageRecord messageRecord = reader.getCurrent();
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messageRecordCache.put(type + messageId, new SoftReference<MessageRecord>(messageRecord));
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return messageRecord;
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}
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@Override
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protected void onContentChanged() {
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super.onContentChanged();
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messageRecordCache.clear();
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}
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public void close() {
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this.getCursor().close();
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}
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@Override
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public void onMovedToScrapHeap(View view) {
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((ConversationItem)view).unbind();
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}
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}
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