MessageListActivity.java

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package com.riverlab.robotmanager.messages;

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

import android.app.Activity;
import android.content.Context;
import android.media.AudioManager;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;

import android.view.View;
import android.view.WindowManager;
import android.widget.AdapterView;
import android.widget.ImageView;
import android.widget.TextView;

import com.google.android.glass.media.Sounds;
import com.google.android.glass.widget.CardScrollView;
import com.riverlab.robotmanager.R;
import com.riverlab.robotmanager.RobotManagerApplication;
import com.riverlab.robotmanager.voice_recognition.VoiceRecognitionThread;

public class MessageListActivity extends Activity implements AdapterView.OnItemClickListener
{

        List<RobotMessage> mMessages;
        CardScrollView mCardScrollView;
        RobotMessage mSelectedMessage;
        MessageCardScrollAdapter adapter;
        RobotManagerApplication mApplication;

        Runnable close = new Runnable() {
                @Override
                public void run() 
                {
                        finish();
                }
        };

        Runnable previous = new Runnable() {
                @Override
                public void run() 
                {
                        int current = mCardScrollView.getSelectedItemPosition();
                        int next = current - 1;

                        if(next >= 0)
                        {
                                mCardScrollView.setSelection(next);
                        }
                }
        };

        Runnable next = new Runnable() {
                @Override
                public void run() 
                {
                        int last = mCardScrollView.getChildCount();
                        int current = mCardScrollView.getSelectedItemPosition();
                        int next = current + 1;

                        if(next < last)
                        {
                                mCardScrollView.setSelection(next);
                        }
                }
        };
        
        Runnable viewImage = new Runnable() {
                @Override
                public void run() 
                {
                        Runnable guiUpdate = new Runnable() {
                                @Override
                                public void run() {
                                        int index = mCardScrollView.getSelectedItemPosition();
                                        if (mMessages.get(index).getType() == "Text")
                                                return;
                                        
                                        View curView = mCardScrollView.getChildAt(mCardScrollView.getSelectedItemPosition());
                                        ImageView imgView = (ImageView)curView.findViewById(R.id.imageView);
                                        TextView msgView = (TextView)curView.findViewById(R.id.messageText);
                                        
                                        imgView.setVisibility(View.VISIBLE);
                                        msgView.setVisibility(View.INVISIBLE);
                                }
                        };
                        
                        Handler handler = new Handler(Looper.getMainLooper());
                        handler.post(guiUpdate);
                }
        };
        
        Runnable viewText = new Runnable() {
                @Override
                public void run() 
                {
                        Runnable guiUpdate = new Runnable() {
                                @Override
                                public void run() {
                                        View curView = mCardScrollView.getChildAt(mCardScrollView.getSelectedItemPosition());
                                        ImageView imgView = (ImageView)curView.findViewById(R.id.imageView);
                                        TextView msgView = (TextView)curView.findViewById(R.id.messageText);
                                        
                                        imgView.setVisibility(View.INVISIBLE);
                                        msgView.setVisibility(View.VISIBLE);
                                }
                        };
                        
                        Handler handler = new Handler(Looper.getMainLooper());
                        handler.post(guiUpdate);
                }
        };

        @Override
        protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);

                mCardScrollView = new CardScrollView(this);
                mCardScrollView.activate();
                mCardScrollView.setOnItemClickListener(this);
                mApplication = ((RobotManagerApplication) this.getApplication());
                setContentView(mCardScrollView);
        }

        @Override
        protected void onResume() {
                super.onResume();

                mApplication.setMsgListActivity(this);
                mMessages = mApplication.getMessages();
                adapter = new MessageCardScrollAdapter(this, mMessages);
                mCardScrollView.setAdapter(adapter);
                mCardScrollView.setSelection(mMessages.size() - 1);
                getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

                HashMap<String, Runnable> commands = new HashMap<String, Runnable>();
                commands.put("Close", close);
                commands.put("Next", next);
                commands.put("Previous", previous);
                commands.put("Image", viewImage);
                commands.put("Text", viewText);
                
                Handler voiceHandler = mApplication.getVoiceThreadHandler();
                Message msg = voiceHandler.obtainMessage(
                                VoiceRecognitionThread.CHANGE_VOCAB_ACTION_MESSAGE,
                                commands);
                voiceHandler.sendMessage(msg);
                
                msg = voiceHandler.obtainMessage(
                                VoiceRecognitionThread.CONTEXT_MESSAGE, 
                                this);
                voiceHandler.sendMessage(msg);
                
                msg = voiceHandler.obtainMessage(
                                VoiceRecognitionThread.LISTENING_MESSAGE, 
                                true);
                voiceHandler.sendMessage(msg);
        }

        @Override
        protected void onPause()
        {
                super.onPause();

                mApplication.setMsgListActivity(null);
        }

        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                mSelectedMessage = (RobotMessage) mCardScrollView.getItemAtPosition(position);
                AudioManager audio = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
                audio.playSoundEffect(Sounds.TAP);
                openOptionsMenu();
        }

        public void onMessageAddition()
        {
                int curPosition = 0;
                curPosition = mCardScrollView.getSelectedItemPosition();

                mMessages = mApplication.getMessages();
                adapter = new MessageCardScrollAdapter(this, mMessages);
                mCardScrollView.setAdapter(adapter);

                if (mMessages.get(0).getPriority() == 0)
                {
                        mCardScrollView.setSelection(curPosition);
                }
                else
                {
                        mCardScrollView.setSelection(mMessages.size() - 1);
                }
        }
}