src/de/ub0r/android/adBlock/AdBlock.java

   1 package de.ub0r.android.adBlock;
   2
   3 import java.util.ArrayList;
   4
   5 import android.app.Activity;
   6 import android.app.AlertDialog;
   7 import android.content.DialogInterface;
   8 import android.content.Intent;
   9 import android.content.SharedPreferences;
  10 import android.os.Bundle;
  11 import android.preference.PreferenceManager;
  12 import android.view.View;
  13 import android.view.View.OnClickListener;
  14 import android.widget.AdapterView;
  15 import android.widget.ArrayAdapter;
  16 import android.widget.Button;
  17 import android.widget.EditText;
  18 import android.widget.ListView;
  19 import android.widget.AdapterView.OnItemClickListener;
  20
  21 /**
  22  * Main Activity to controle ad blocking proxy.
  23  *
  24  * @author flx
  25  */
  26 public class AdBlock extends Activity implements OnClickListener,
  27                 OnItemClickListener {
  28
  29         /** Preferences: Port. */
  30         static final String PREFS_PORT = "port";
  31         /** Preferences: Filter. */
  32         static final String PREFS_FILTER = "filter";
  33
  34         /** ItemDialog: edit. */
  35         private static final short ITEM_DIALOG_EDIT = 0;
  36         /** ItemDialog: delete. */
  37         private static final short ITEM_DIALOG_DELETE = 1;
  38
  39         /** Prefs. */
  40         private SharedPreferences preferences;
  41
  42         /** The filter. */
  43         private ArrayList<String> filter = new ArrayList<String>();
  44         /** The ArrayAdapter. */
  45         private ArrayAdapter<String> adapter = null;
  46
  47         /** Editmode? */
  48         private int itemToEdit = -1;
  49
  50         /**
  51          * Called when the activity is first created.
  52          *
  53          * @param savedInstanceState
  54          *            saved InstanceState
  55          */
  56         @Override
  57         public final void onCreate(final Bundle savedInstanceState) {
  58                 super.onCreate(savedInstanceState);
  59                 this.setContentView(R.layout.main);
  60
  61                 this.preferences = PreferenceManager.getDefaultSharedPreferences(this);
  62                 ((EditText) this.findViewById(R.id.port)).setText(this.preferences
  63                                 .getString(PREFS_PORT, "8080"));
  64                 String f = this.preferences.getString(PREFS_FILTER, "");
  65                 for (String s : f.split("\n")) {
  66                         if (s.length() > 0) {
  67                                 this.filter.add(s);
  68                         }
  69                 }
  70
  71                 ((Button) this.findViewById(R.id.start_service))
  72                                 .setOnClickListener(this);
  73                 ((Button) this.findViewById(R.id.stop_service))
  74                                 .setOnClickListener(this);
  75                 ((Button) this.findViewById(R.id.filter_add_)).setOnClickListener(this);
  76                 ListView lv = (ListView) this.findViewById(R.id.filter);
  77                 this.adapter = new ArrayAdapter<String>(this,
  78                                 android.R.layout.simple_list_item_1, this.filter);
  79                 lv.setAdapter(this.adapter);
  80                 lv.setTextFilterEnabled(true);
  81                 lv.setOnItemClickListener(this);
  82         }
  83
  84         /** Save Preferences. */
  85         private void savePreferences() {
  86                 SharedPreferences.Editor editor = this.preferences.edit();
  87                 editor.putString(PREFS_PORT, ((EditText) this.findViewById(R.id.port))
  88                                 .getText().toString());
  89                 StringBuilder sb = new StringBuilder();
  90                 for (String s : this.filter) {
  91                         sb.append(s + "\n");
  92                 }
  93                 editor.putString(PREFS_FILTER, sb.toString());
  94                 editor.commit();
  95         }
  96
  97         /** Called on pause. */
  98         @Override
  99         public final void onPause() {
 100                 super.onPause();
 101                 this.savePreferences();
 102         }
 103
 104         /**
 105          * OnClickListener.
 106          *
 107          * @param v
 108          *            view
 109          */
 110         @Override
 111         public final void onClick(final View v) {
 112                 switch (v.getId()) {
 113                 case R.id.start_service:
 114                         this.savePreferences();
 115                         this.startService(new Intent(this, Proxy.class));
 116                         break;
 117                 case R.id.stop_service:
 118                         this.stopService(new Intent(this, Proxy.class));
 119                 case R.id.filter_add_:
 120                         EditText et = (EditText) this.findViewById(R.id.filter_add);
 121                         String f = et.getText().toString();
 122                         if (f.length() > 0) {
 123                                 if (this.itemToEdit >= 0) {
 124                                         this.filter.remove(this.itemToEdit);
 125                                         this.itemToEdit = -1;
 126                                 }
 127                                 this.filter.add(f);
 128                                 et.setText("");
 129                                 this.adapter.notifyDataSetChanged();
 130                         }
 131                         break;
 132                 default:
 133                         break;
 134                 }
 135         }
 136
 137         /**
 138          * Handle clicked ListItem.
 139          *
 140          * @param parent
 141          *            parent AdapterView
 142          * @param v
 143          *            View
 144          * @param position
 145          *            Position
 146          * @param id
 147          *            id
 148          */
 149         @Override
 150         public final void onItemClick(final AdapterView<?> parent, final View v,
 151                         final int position, final long id) {
 152
 153                 AlertDialog.Builder builder = new AlertDialog.Builder(this);
 154                 // builder.setTitle("Pick a color");
 155                 builder.setItems(
 156                                 this.getResources().getStringArray(R.array.itemDialog),
 157                                 new DialogInterface.OnClickListener() {
 158                                         public void onClick(final DialogInterface dialog,
 159                                                         final int item) {
 160                                                 switch (item) {
 161                                                 case ITEM_DIALOG_EDIT:
 162                                                         AdBlock.this.itemToEdit = position;
 163                                                         ((EditText) AdBlock.this
 164                                                                         .findViewById(R.id.filter_add))
 165                                                                         .setText(AdBlock.this.adapter
 166                                                                                         .getItem(position));
 167                                                         break;
 168                                                 case ITEM_DIALOG_DELETE:
 169                                                         AdBlock.this.filter.remove(position);
 170                                                         AdBlock.this.adapter.notifyDataSetChanged();
 171                                                         break;
 172                                                 default:
 173                                                         break;
 174                                                 }
 175                                         }
 176                                 });
 177                 AlertDialog alert = builder.create();
 178                 alert.show();
 179         }
 180 }