linphone-android/src/android/org/linphone/chat/DeviceAdapter.java

package org.linphone.chat;

/*
DeviceAdapter.java
Copyright (C) 2010-2018  Belledonne Communications, Grenoble, France

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 2
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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;

import org.linphone.LinphoneUtils;
import org.linphone.R;
import org.linphone.contacts.ContactsManager;
import org.linphone.contacts.LinphoneContact;
import org.linphone.core.Address;
import org.linphone.core.Participant;
import org.linphone.core.ParticipantDevice;
import org.linphone.ui.ContactAvatar;

import java.util.ArrayList;
import java.util.List;

public class DeviceAdapter extends BaseExpandableListAdapter {
    private Context mContext;
    private List<Participant> mParticipants;
    private boolean mOnlyDisplayChildsAsGroups;

    public DeviceAdapter(Context context) {
        mContext = context;
        mParticipants = new ArrayList<>();
        mOnlyDisplayChildsAsGroups = false;
    }

    public void updateListItems(List<Participant> participants, boolean childsAsGroups) {
        mOnlyDisplayChildsAsGroups = childsAsGroups;
        mParticipants = participants;
        notifyDataSetChanged();
    }

    @Override
    public View getGroupView(int groupPosition, boolean isExpanded, View view, ViewGroup viewGroup) {
        if (mOnlyDisplayChildsAsGroups) {
            ParticipantDevice device = (ParticipantDevice) getGroup(groupPosition);

            DeviceChildViewHolder holder = null;
            if (view != null) {
                Object possibleHolder = view.getTag();
                if (possibleHolder instanceof DeviceChildViewHolder) {
                    holder = (DeviceChildViewHolder) possibleHolder;
                }
            } else {
                LayoutInflater inflater = LayoutInflater.from(mContext);
                view = inflater.inflate(R.layout.chat_device_cell, viewGroup, false);
            }
            if (holder == null) {
                holder = new DeviceChildViewHolder(view);
                view.setTag(holder);
            }

            Address deviceAddress = device.getAddress();
            holder.deviceName.setText(deviceAddress.getUriParam("gr")); //TODO
        } else {
            Participant participant = (Participant) getGroup(groupPosition);

            DeviceGroupViewHolder holder = null;
            if (view != null) {
                Object possibleHolder = view.getTag();
                if (possibleHolder instanceof DeviceGroupViewHolder) {
                    holder = (DeviceGroupViewHolder) possibleHolder;
                }
            } else {
                LayoutInflater inflater = LayoutInflater.from(mContext);
                view = inflater.inflate(R.layout.chat_device_group, viewGroup, false);
            }
            if (holder == null) {
                holder = new DeviceGroupViewHolder(view);
                view.setTag(holder);
            }

            Address participantAddress = participant.getAddress();
            LinphoneContact contact = ContactsManager.getInstance().findContactFromAddress(participantAddress);
            if (contact != null) {
                ContactAvatar.displayAvatar(contact, holder.avatarLayout);
                holder.participantName.setText(contact.getFullName());
            } else {
                String displayName = LinphoneUtils.getAddressDisplayName(participantAddress);
                ContactAvatar.displayAvatar(displayName, holder.avatarLayout);
                holder.participantName.setText(displayName);
            }

            holder.groupExpander.setImageResource(isExpanded ? R.drawable.chevron_list_open : R.drawable.chevron_list_close);
        }

        return view;
    }

    @Override
    public View getChildView(int groupPosition, int childPosition, boolean b, View view, ViewGroup viewGroup) {
        ParticipantDevice device = (ParticipantDevice) getChild(groupPosition, childPosition);

        DeviceChildViewHolder holder = null;
        if (view != null) {
            Object possibleHolder = view.getTag();
            if (possibleHolder instanceof DeviceChildViewHolder) {
                holder = (DeviceChildViewHolder) possibleHolder;
            }
        } else {
            LayoutInflater inflater = LayoutInflater.from(mContext);
            view = inflater.inflate(R.layout.chat_device_cell, viewGroup, false);
        }
        if (holder == null) {
            holder = new DeviceChildViewHolder(view);
            view.setTag(holder);
        }

        Address deviceAddress = device.getAddress();
        holder.deviceName.setText(deviceAddress.getUriParam("gr")); //TODO
        //holder.securityLevel.setImageResource();

        return view;
    }

    @Override
    public int getGroupCount() {
        if (mParticipants.size() == 0) return 0;
        return mOnlyDisplayChildsAsGroups ? mParticipants.get(0).getDevices().length : mParticipants.size();
    }

    @Override
    public int getChildrenCount(int groupPosition) {
        if (mParticipants.size() == 0) return 0;
        return mOnlyDisplayChildsAsGroups ? 0 : mParticipants.get(groupPosition).getDevices().length;
    }

    @Override
    public Object getGroup(int groupPosition) {
        if (mParticipants.size() == 0) return null;
        return mOnlyDisplayChildsAsGroups ? mParticipants.get(0).getDevices()[groupPosition] : mParticipants.get(groupPosition);
    }

    @Override
    public Object getChild(int groupPosition, int childPosition) {
        if (mParticipants.size() == 0) return null;
        return mParticipants.get(groupPosition).getDevices()[childPosition];
    }

    @Override
    public long getGroupId(int groupPosition) {
        return groupPosition;
    }

    @Override
    public long getChildId(int groupPosition, int childPosition) {
        return childPosition;
    }

    @Override
    public boolean isChildSelectable(int groupPosition, int childPosition) {
        return false;
    }

    @Override
    public boolean hasStableIds() {
        return false;
    }
}