1/*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.googlecode.android_scripting.activity;
18
19import android.app.AlertDialog;
20import android.app.ListActivity;
21import android.content.Context;
22import android.content.DialogInterface;
23import android.content.DialogInterface.OnClickListener;
24import android.content.Intent;
25import android.content.SharedPreferences;
26import android.database.DataSetObserver;
27import android.net.Uri;
28import android.os.Bundle;
29import android.preference.PreferenceManager;
30import android.view.LayoutInflater;
31import android.view.Menu;
32import android.view.MenuItem;
33import android.view.SubMenu;
34import android.view.View;
35import android.view.ViewGroup;
36import android.widget.BaseAdapter;
37import android.widget.ImageView;
38import android.widget.LinearLayout;
39import android.widget.ListView;
40import android.widget.TextView;
41
42import com.googlecode.android_scripting.ActivityFlinger;
43import com.googlecode.android_scripting.BaseApplication;
44import com.googlecode.android_scripting.Constants;
45import com.googlecode.android_scripting.FeaturedInterpreters;
46import com.googlecode.android_scripting.R;
47import com.googlecode.android_scripting.interpreter.Interpreter;
48import com.googlecode.android_scripting.interpreter.InterpreterConfiguration;
49import com.googlecode.android_scripting.interpreter.InterpreterConfiguration.ConfigurationObserver;
50
51import java.net.URL;
52import java.util.ArrayList;
53import java.util.List;
54
55public class InterpreterManager extends ListActivity {
56
57  private InterpreterManagerAdapter mAdapter;
58  private InterpreterListObserver mObserver;
59  private List<Interpreter> mInterpreters;
60  private List<String> mFeaturedInterpreters;
61  private InterpreterConfiguration mConfiguration;
62  private SharedPreferences mPreferences;
63
64  private static enum MenuId {
65    HELP, ADD, NETWORK, PREFERENCES;
66    public int getId() {
67      return ordinal() + Menu.FIRST;
68    }
69  }
70
71  @Override
72  public void onCreate(Bundle savedInstanceState) {
73    super.onCreate(savedInstanceState);
74    CustomizeWindow.requestCustomTitle(this, "Interpreters", R.layout.interpreter_manager);
75    mConfiguration = ((BaseApplication) getApplication()).getInterpreterConfiguration();
76    mInterpreters = new ArrayList<Interpreter>();
77    mAdapter = new InterpreterManagerAdapter();
78    mObserver = new InterpreterListObserver();
79    mAdapter.registerDataSetObserver(mObserver);
80    setListAdapter(mAdapter);
81    ActivityFlinger.attachView(getListView(), this);
82    ActivityFlinger.attachView(getWindow().getDecorView(), this);
83    mFeaturedInterpreters = FeaturedInterpreters.getList();
84    mPreferences = PreferenceManager.getDefaultSharedPreferences(this);
85  }
86
87  @Override
88  public void onStart() {
89    super.onStart();
90    mConfiguration.registerObserver(mObserver);
91    mAdapter.notifyDataSetInvalidated();
92  }
93
94  @Override
95  protected void onResume() {
96    super.onResume();
97    mAdapter.notifyDataSetInvalidated();
98  }
99
100  @Override
101  public void onStop() {
102    super.onStop();
103    mConfiguration.unregisterObserver(mObserver);
104  }
105
106  @Override
107  public boolean onPrepareOptionsMenu(Menu menu) {
108    menu.clear();
109    buildInstallLanguagesMenu(menu);
110    menu.add(Menu.NONE, MenuId.NETWORK.getId(), Menu.NONE, "Start Server").setIcon(
111        android.R.drawable.ic_menu_share);
112    menu.add(Menu.NONE, MenuId.PREFERENCES.getId(), Menu.NONE, "Preferences").setIcon(
113        android.R.drawable.ic_menu_preferences);
114    return super.onPrepareOptionsMenu(menu);
115  }
116
117  private void buildInstallLanguagesMenu(Menu menu) {
118    SubMenu installMenu =
119        menu.addSubMenu(Menu.NONE, MenuId.ADD.getId(), Menu.NONE, "Add").setIcon(
120            android.R.drawable.ic_menu_add);
121    int i = MenuId.values().length + Menu.FIRST;
122    for (String interpreterName : mFeaturedInterpreters) {
123      installMenu.add(Menu.NONE, i++, Menu.NONE, interpreterName);
124    }
125  }
126
127  @Override
128  public boolean onOptionsItemSelected(MenuItem item) {
129    int itemId = item.getItemId();
130    if (itemId == MenuId.NETWORK.getId()) {
131      AlertDialog.Builder dialog = new AlertDialog.Builder(this);
132      dialog.setItems(new CharSequence[] { "Public", "Private" }, new OnClickListener() {
133        @Override
134        public void onClick(DialogInterface dialog, int which) {
135          launchService(which == 0 /* usePublicIp */);
136        }
137      });
138      dialog.show();
139    } else if (itemId == MenuId.PREFERENCES.getId()) {
140      startActivity(new Intent(this, Preferences.class));
141    } else if (itemId >= MenuId.values().length + Menu.FIRST) {
142      int i = itemId - MenuId.values().length - Menu.FIRST;
143      if (i < mFeaturedInterpreters.size()) {
144        URL url = FeaturedInterpreters.getUrlForName(mFeaturedInterpreters.get(i));
145        Intent viewIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(url.toString()));
146        startActivity(viewIntent);
147      }
148    }
149    return true;
150  }
151
152  private int getPrefInt(String key, int defaultValue) {
153    int result = defaultValue;
154    String value = mPreferences.getString(key, null);
155    if (value != null) {
156      try {
157        result = Integer.parseInt(value);
158      } catch (NumberFormatException e) {
159        result = defaultValue;
160      }
161    }
162    return result;
163  }
164
165  private void launchService(boolean usePublicIp) {
166    Intent intent = new Intent(this, ScriptingLayerService.class);
167    intent.setAction(Constants.ACTION_LAUNCH_SERVER);
168    intent.putExtra(Constants.EXTRA_USE_EXTERNAL_IP, usePublicIp);
169    intent.putExtra(Constants.EXTRA_USE_SERVICE_PORT, getPrefInt("use_service_port", 0));
170    startService(intent);
171  }
172
173  private void launchTerminal(Interpreter interpreter) {
174    Intent intent = new Intent(this, ScriptingLayerService.class);
175    intent.setAction(Constants.ACTION_LAUNCH_INTERPRETER);
176    intent.putExtra(Constants.EXTRA_INTERPRETER_NAME, interpreter.getName());
177    startService(intent);
178  }
179
180  @Override
181  protected void onListItemClick(ListView list, View view, int position, long id) {
182    Interpreter interpreter = (Interpreter) list.getItemAtPosition(position);
183    launchTerminal(interpreter);
184  }
185
186  @Override
187  public void onDestroy() {
188    super.onDestroy();
189    mConfiguration.unregisterObserver(mObserver);
190  }
191
192  private class InterpreterListObserver extends DataSetObserver implements ConfigurationObserver {
193    @Override
194    public void onInvalidated() {
195      mInterpreters = mConfiguration.getInteractiveInterpreters();
196    }
197
198    @Override
199    public void onChanged() {
200      mInterpreters = mConfiguration.getInteractiveInterpreters();
201    }
202
203    @Override
204    public void onConfigurationChanged() {
205      runOnUiThread(new Runnable() {
206        @Override
207        public void run() {
208          mAdapter.notifyDataSetChanged();
209        }
210      });
211    }
212  }
213
214  private class InterpreterManagerAdapter extends BaseAdapter {
215
216    @Override
217    public int getCount() {
218      return mInterpreters.size();
219    }
220
221    @Override
222    public Object getItem(int position) {
223      return mInterpreters.get(position);
224    }
225
226    @Override
227    public long getItemId(int position) {
228      return position;
229    }
230
231    @Override
232    public View getView(int position, View convertView, ViewGroup parent) {
233      LinearLayout container;
234
235      Interpreter interpreter = mInterpreters.get(position);
236
237      if (convertView == null) {
238        LayoutInflater inflater =
239            (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
240        container = (LinearLayout) inflater.inflate(R.layout.list_item, null);
241      } else {
242        container = (LinearLayout) convertView;
243      }
244      ImageView img = (ImageView) container.findViewById(R.id.list_item_icon);
245
246      int imgId =
247          FeaturedInterpreters.getInterpreterIcon(InterpreterManager.this,
248              interpreter.getExtension());
249      if (imgId == 0) {
250        imgId = R.drawable.sl4a_logo_32;
251      }
252
253      img.setImageResource(imgId);
254
255      TextView text = (TextView) container.findViewById(R.id.list_item_title);
256
257      text.setText(interpreter.getNiceName());
258      return container;
259    }
260  }
261}
262