TouchstonePrefsActivity.java

package edu.mit.mitmobile2.touchstone;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;

import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.jsoup.nodes.Document;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.preference.PreferenceManager;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.Log;
import android.view.View;
import android.webkit.WebView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
import edu.mit.mitmobile2.FullScreenLoader;
import edu.mit.mitmobile2.MITClient;
import edu.mit.mitmobile2.MobileWebApi;
import edu.mit.mitmobile2.NewModule;
import edu.mit.mitmobile2.NewModuleActivity;
import edu.mit.mitmobile2.R;
import edu.mit.mitmobile2.libraries.LibraryModel.UserIdentity;
import edu.mit.mitmobile2.settings.SettingsModule;

public class TouchstonePrefsActivity extends NewModuleActivity implements OnSharedPreferenceChangeListener {
	
	private Context mContext;	

	TextView emergencyContactsTV;

	SharedPreferences pref;
	String user;
	String password;
	WebView webview;
	Document document;
	EditText touchstoneUsername;
	EditText touchstonePassword;
	Button cancelButton;
	Button doneButton;
	Button touchstoneLogoutButton;
	TextView mError;
	private boolean credentialsChanged;
    private LinearLayout touchstoneContents;
	private FullScreenLoader touchstoneLoadingView;

    
	public static SharedPreferences prefs;
	public static final String TAG = "TouchstonePrefsActivity";
	
	/**
	 * @throws IOException 
	 * @throws ClientProtocolException **************************************************/
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		Log.d(TAG,"onCreate()");
		super.onCreate(savedInstanceState);
		mContext = this;

        createViews();
        
        addSecondaryTitle("MIT Touchstone");
	}
		
	private void createViews() {
		Log.d(TAG,"createViews()");
		setContentView(R.layout.touchstone_prefs);

		SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(mContext);
		final SharedPreferences.Editor prefsEditor = prefs.edit();

		touchstoneUsername = (EditText)findViewById(R.id.touchstoneUsername);
		touchstonePassword = (EditText)findViewById(R.id.touchstonePassword);

		// load existing pref values
		touchstoneUsername.setText(prefs.getString("PREF_TOUCHSTONE_USERNAME", ""));
		touchstonePassword.setText(prefs.getString("PREF_TOUCHSTONE_PASSWORD", ""));

		doneButton = (Button)findViewById(R.id.touchstoneDoneButton);
		cancelButton = (Button)findViewById(R.id.touchstoneCancelButton);

		touchstoneLogoutButton = (Button)findViewById(R.id.touchstoneLogoutButton);
		if (MITClient.cookieStore == null) {
			touchstoneLogoutButton.setEnabled(false);
		}
		else {
			touchstoneLogoutButton.setEnabled(true);			
		}
		
	    touchstoneLoadingView = (FullScreenLoader)findViewById(R.id.touchstoneLoadingView);
	    mError = (TextView)touchstoneLoadingView.findViewById(R.id.fullScreenLoadingErrorTV); 
	    touchstoneContents = (LinearLayout)findViewById(R.id.touchstoneContents);

	    touchstoneUsername.addTextChangedListener(new TextWatcher(){
	        @Override
			public void afterTextChanged(Editable s) {
	        	 credentialsChanged = true;
	        	 Log.d(TAG,"credentials changed");
	        }
	        @Override
			public void beforeTextChanged(CharSequence s, int start, int count, int after){}
	        @Override
			public void onTextChanged(CharSequence s, int start, int before, int count){}
	    });
	    
	    touchstonePassword.addTextChangedListener(new TextWatcher(){
	        @Override
			public void afterTextChanged(Editable s) {
	        	 credentialsChanged = true;
	        }
	        @Override
			public void beforeTextChanged(CharSequence s, int start, int count, int after){}
	        @Override
			public void onTextChanged(CharSequence s, int start, int before, int count){}
	    });

	    
	    doneButton.setOnClickListener(new View.OnClickListener() {
			
			@Override
			public void onClick(View v) {
				try {
					Log.d(TAG,"username = " + touchstoneUsername.getEditableText().toString());
					Log.d(TAG,"password = " + touchstonePassword.getEditableText().toString());
					prefsEditor.putString("PREF_TOUCHSTONE_USERNAME", touchstoneUsername.getEditableText().toString());
					prefsEditor.putString("PREF_TOUCHSTONE_PASSWORD", touchstonePassword.getEditableText().toString());
					prefsEditor.commit();
					if (credentialsChanged) {
						MITClient.cookieStore = null;
					}
				}
				catch (RuntimeException e) {
					Log.d(TAG,"error getting prefs: " + e.getMessage() + "\n" + e.getStackTrace());
				}


				Intent resultIntent = new Intent();
				resultIntent.putExtra("msg","ok");
				setResult(Activity.RESULT_OK, resultIntent);
				Log.d("MITClient","finish()");
				finish();
			}
		});
				
		cancelButton.setOnClickListener(new View.OnClickListener() {
			
			@Override
			public void onClick(View v) {
				finish();
			}
		});

		touchstoneLogoutButton.setOnClickListener(new View.OnClickListener() {
			
			@Override
			public void onClick(View v) {
				MITClient.cookieStore = null;
				v.setEnabled(false);
			}
		});

	}
	
	
    @SuppressWarnings("unused")
	private Handler loginUiHandler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
        	Log.d(TAG,"handleMessage");
			touchstoneContents.setVisibility(View.VISIBLE);
        	touchstoneLoadingView.setVisibility(View.GONE);

            if (msg.arg1 == MobileWebApi.SUCCESS) {
            	Log.d(TAG,"MobileWebApi success");
                UserIdentity identity = (UserIdentity)msg.obj;
                Log.d(TAG,"identity = " + identity.getUsername());
            } 
            else if (msg.arg1 == MobileWebApi.ERROR) {
            	Log.d(TAG,"show login error");
            	mError.setText("Error logging into Touchstone");
            	touchstoneLoadingView.showError();
            } 
            else if (msg.arg1 == MobileWebApi.CANCELLED) {
            	touchstoneLoadingView.showError();
            }
        }
    };
 
	@Override
	protected NewModule getNewModule() {
		return new SettingsModule();
	}

	@Override
	public boolean isModuleHomeActivity() {
		return true;
	}

	
	public static String responseContentToString(HttpResponse response) {
		try {
		InputStream inputStream = response.getEntity().getContent();
		ByteArrayOutputStream content = new ByteArrayOutputStream();
		// Read response into a buffered stream
		int readBytes = 0;
		byte[] sBuffer = new byte[512];
  		while ((readBytes = inputStream.read(sBuffer)) != -1) {
  			content.write(sBuffer, 0, readBytes);
  		}

  		// Return result from buffered stream
  		String dataAsString = new String(content.toByteArray());
  		return dataAsString;
		}
		catch (IOException e) {
			return null;
		}
	}
	
	@Override
	public synchronized void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
//		Context mContext = this;
//		Handler uiHandler = new Handler();
//		if (key.equalsIgnoreCase("PREF_TOUCHSTONE_USERNAME")) {
//			mitClient.setUser(prefs.getString("PREF_TOUCHSTONE_USERNAME", null));
//		}
//		
//		if (key.equalsIgnoreCase("PREF_TOUCHSTONE_PASSWORD")) {
//			mitClient.setPassword(prefs.getString("PREF_TOUCHSTONE_PASSWORD", null));
//		}
//		
//		Toast.makeText(this, "user set to " + mitClient.getUser(), Toast.LENGTH_SHORT).show();
	}

	@Override
	protected boolean isScrollable() {
		return true;
	}

	@Override
	protected void onOptionSelected(String optionId) {	}

}