1 /* 2 * Copyright (C) 2012 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 17 package com.android.settings; 18 19 import android.app.ActionBar; 20 import android.app.Activity; 21 import android.app.AlertDialog; 22 import android.app.Dialog; 23 import android.content.BroadcastReceiver; 24 import android.content.Context; 25 import android.content.DialogInterface; 26 import android.content.Intent; 27 import android.content.IntentFilter; 28 import android.os.Bundle; 29 import android.preference.PreferenceActivity; 30 import android.util.Log; 31 import android.view.Gravity; 32 import android.view.LayoutInflater; 33 import android.view.Menu; 34 import android.view.MenuInflater; 35 import android.view.MenuItem; 36 import android.view.MenuItem.OnMenuItemClickListener; 37 import android.view.MotionEvent; 38 import android.view.View; 39 import android.view.View.OnClickListener; 40 import android.view.View.OnTouchListener; 41 import android.view.ViewGroup; 42 import android.widget.ArrayAdapter; 43 import android.widget.CompoundButton; 44 import android.widget.CompoundButton.OnCheckedChangeListener; 45 import android.widget.ImageView; 46 import android.widget.ListView; 47 import android.widget.RadioButton; 48 import android.widget.Switch; 49 import android.widget.TextView; 50 51 import com.android.settings.DreamBackend.DreamInfo; 52 53 import java.util.List; 54 55 public class DreamSettings extends SettingsPreferenceFragment { 56 private static final String TAG = DreamSettings.class.getSimpleName(); 57 static final boolean DEBUG = false; 58 private static final int DIALOG_WHEN_TO_DREAM = 1; 59 private static final String PACKAGE_SCHEME = "package"; 60 61 private final PackageReceiver mPackageReceiver = new PackageReceiver(); 62 63 private Context mContext; 64 private DreamBackend mBackend; 65 private DreamInfoAdapter mAdapter; 66 private Switch mSwitch; 67 private MenuItem[] mMenuItemsWhenEnabled; 68 private boolean mRefreshing; 69 70 @Override getHelpResource()71 public int getHelpResource() { 72 return R.string.help_url_dreams; 73 } 74 75 @Override onAttach(Activity activity)76 public void onAttach(Activity activity) { 77 logd("onAttach(%s)", activity.getClass().getSimpleName()); 78 super.onAttach(activity); 79 mContext = activity; 80 } 81 82 @Override onCreate(Bundle icicle)83 public void onCreate(Bundle icicle) { 84 logd("onCreate(%s)", icicle); 85 super.onCreate(icicle); 86 Activity activity = getActivity(); 87 88 mBackend = new DreamBackend(activity); 89 mSwitch = new Switch(activity); 90 mSwitch.setOnCheckedChangeListener(new OnCheckedChangeListener() { 91 @Override 92 public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { 93 if (!mRefreshing) { 94 mBackend.setEnabled(isChecked); 95 refreshFromBackend(); 96 } 97 } 98 }); 99 100 final int padding = activity.getResources().getDimensionPixelSize( 101 R.dimen.action_bar_switch_padding); 102 mSwitch.setPaddingRelative(0, 0, padding, 0); 103 activity.getActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM, 104 ActionBar.DISPLAY_SHOW_CUSTOM); 105 activity.getActionBar().setCustomView(mSwitch, new ActionBar.LayoutParams( 106 ActionBar.LayoutParams.WRAP_CONTENT, 107 ActionBar.LayoutParams.WRAP_CONTENT, 108 Gravity.CENTER_VERTICAL | Gravity.END)); 109 110 setHasOptionsMenu(true); 111 } 112 113 @Override onDestroyView()114 public void onDestroyView() { 115 getActivity().getActionBar().setCustomView(null); 116 super.onDestroyView(); 117 } 118 119 @Override onActivityCreated(Bundle savedInstanceState)120 public void onActivityCreated(Bundle savedInstanceState) { 121 logd("onActivityCreated(%s)", savedInstanceState); 122 super.onActivityCreated(savedInstanceState); 123 124 ListView listView = getListView(); 125 126 listView.setItemsCanFocus(true); 127 128 TextView emptyView = (TextView) getView().findViewById(android.R.id.empty); 129 emptyView.setText(R.string.screensaver_settings_disabled_prompt); 130 listView.setEmptyView(emptyView); 131 132 mAdapter = new DreamInfoAdapter(mContext); 133 listView.setAdapter(mAdapter); 134 } 135 136 @Override onCreateOptionsMenu(Menu menu, MenuInflater inflater)137 public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { 138 logd("onCreateOptionsMenu()"); 139 140 boolean isEnabled = mBackend.isEnabled(); 141 142 // create "start" action 143 MenuItem start = createMenuItem(menu, R.string.screensaver_settings_dream_start, 144 MenuItem.SHOW_AS_ACTION_ALWAYS, 145 isEnabled, new Runnable(){ 146 @Override 147 public void run() { 148 mBackend.startDreaming(); 149 }}); 150 151 // create "when to dream" overflow menu item 152 MenuItem whenToDream = createMenuItem(menu, 153 R.string.screensaver_settings_when_to_dream, 154 MenuItem.SHOW_AS_ACTION_IF_ROOM, 155 isEnabled, 156 new Runnable() { 157 @Override 158 public void run() { 159 showDialog(DIALOG_WHEN_TO_DREAM); 160 }}); 161 162 // create "help" overflow menu item (make sure it appears last) 163 super.onCreateOptionsMenu(menu, inflater); 164 165 mMenuItemsWhenEnabled = new MenuItem[] { start, whenToDream }; 166 } 167 createMenuItem(Menu menu, int titleRes, int actionEnum, boolean isEnabled, final Runnable onClick)168 private MenuItem createMenuItem(Menu menu, 169 int titleRes, int actionEnum, boolean isEnabled, final Runnable onClick) { 170 MenuItem item = menu.add(titleRes); 171 item.setShowAsAction(actionEnum); 172 item.setEnabled(isEnabled); 173 item.setOnMenuItemClickListener(new OnMenuItemClickListener() { 174 @Override 175 public boolean onMenuItemClick(MenuItem item) { 176 onClick.run(); 177 return true; 178 } 179 }); 180 return item; 181 } 182 183 @Override onCreateDialog(int dialogId)184 public Dialog onCreateDialog(int dialogId) { 185 logd("onCreateDialog(%s)", dialogId); 186 if (dialogId == DIALOG_WHEN_TO_DREAM) 187 return createWhenToDreamDialog(); 188 return super.onCreateDialog(dialogId); 189 } 190 createWhenToDreamDialog()191 private Dialog createWhenToDreamDialog() { 192 final CharSequence[] items = { 193 mContext.getString(R.string.screensaver_settings_summary_dock), 194 mContext.getString(R.string.screensaver_settings_summary_sleep), 195 mContext.getString(R.string.screensaver_settings_summary_either_short) 196 }; 197 198 int initialSelection = mBackend.isActivatedOnDock() && mBackend.isActivatedOnSleep() ? 2 199 : mBackend.isActivatedOnDock() ? 0 200 : mBackend.isActivatedOnSleep() ? 1 201 : -1; 202 203 return new AlertDialog.Builder(mContext) 204 .setTitle(R.string.screensaver_settings_when_to_dream) 205 .setSingleChoiceItems(items, initialSelection, new DialogInterface.OnClickListener() { 206 public void onClick(DialogInterface dialog, int item) { 207 mBackend.setActivatedOnDock(item == 0 || item == 2); 208 mBackend.setActivatedOnSleep(item == 1 || item == 2); 209 } 210 }) 211 .create(); 212 } 213 214 @Override 215 public void onPause() { 216 logd("onPause()"); 217 super.onPause(); 218 mContext.unregisterReceiver(mPackageReceiver); 219 } 220 221 @Override 222 public void onResume() { 223 logd("onResume()"); 224 super.onResume(); 225 refreshFromBackend(); 226 227 // listen for package changes 228 IntentFilter filter = new IntentFilter(); 229 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 230 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 231 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 232 filter.addAction(Intent.ACTION_PACKAGE_REPLACED); 233 filter.addDataScheme(PACKAGE_SCHEME); 234 mContext.registerReceiver(mPackageReceiver , filter); 235 } 236 237 public static int getSummaryResource(Context context) { 238 DreamBackend backend = new DreamBackend(context); 239 boolean isEnabled = backend.isEnabled(); 240 boolean activatedOnSleep = backend.isActivatedOnSleep(); 241 boolean activatedOnDock = backend.isActivatedOnDock(); 242 boolean activatedOnEither = activatedOnSleep && activatedOnDock; 243 return !isEnabled ? R.string.screensaver_settings_summary_off 244 : activatedOnEither ? R.string.screensaver_settings_summary_either_long 245 : activatedOnSleep ? R.string.screensaver_settings_summary_sleep 246 : activatedOnDock ? R.string.screensaver_settings_summary_dock 247 : 0; 248 } 249 250 public static CharSequence getSummaryTextWithDreamName(Context context) { 251 DreamBackend backend = new DreamBackend(context); 252 boolean isEnabled = backend.isEnabled(); 253 if (!isEnabled) { 254 return context.getString(R.string.screensaver_settings_summary_off); 255 } else { 256 return backend.getActiveDreamName(); 257 } 258 } 259 260 private void refreshFromBackend() { 261 logd("refreshFromBackend()"); 262 mRefreshing = true; 263 boolean dreamsEnabled = mBackend.isEnabled(); 264 if (mSwitch.isChecked() != dreamsEnabled) 265 mSwitch.setChecked(dreamsEnabled); 266 267 mAdapter.clear(); 268 if (dreamsEnabled) { 269 List<DreamInfo> dreamInfos = mBackend.getDreamInfos(); 270 mAdapter.addAll(dreamInfos); 271 } 272 if (mMenuItemsWhenEnabled != null) 273 for (MenuItem menuItem : mMenuItemsWhenEnabled) 274 menuItem.setEnabled(dreamsEnabled); 275 mRefreshing = false; 276 } 277 278 private static void logd(String msg, Object... args) { 279 if (DEBUG) 280 Log.d(TAG, args == null || args.length == 0 ? msg : String.format(msg, args)); 281 } 282 283 private class DreamInfoAdapter extends ArrayAdapter<DreamInfo> { 284 private final LayoutInflater mInflater; 285 286 public DreamInfoAdapter(Context context) { 287 super(context, 0); 288 mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 289 } 290 291 @Override 292 public View getView(int position, View convertView, ViewGroup parent) { 293 DreamInfo dreamInfo = getItem(position); 294 logd("getView(%s)", dreamInfo.caption); 295 final View row = convertView != null ? convertView : createDreamInfoRow(parent); 296 row.setTag(dreamInfo); 297 298 // bind icon 299 ((ImageView) row.findViewById(android.R.id.icon)).setImageDrawable(dreamInfo.icon); 300 301 // bind caption 302 ((TextView) row.findViewById(android.R.id.title)).setText(dreamInfo.caption); 303 304 // bind radio button 305 RadioButton radioButton = (RadioButton) row.findViewById(android.R.id.button1); 306 radioButton.setChecked(dreamInfo.isActive); 307 radioButton.setOnTouchListener(new OnTouchListener() { 308 @Override 309 public boolean onTouch(View v, MotionEvent event) { 310 row.onTouchEvent(event); 311 return false; 312 }}); 313 314 // bind settings button + divider 315 boolean showSettings = dreamInfo.settingsComponentName != null; 316 View settingsDivider = row.findViewById(R.id.divider); 317 settingsDivider.setVisibility(showSettings ? View.VISIBLE : View.INVISIBLE); 318 319 ImageView settingsButton = (ImageView) row.findViewById(android.R.id.button2); 320 settingsButton.setVisibility(showSettings ? View.VISIBLE : View.INVISIBLE); 321 settingsButton.setAlpha(dreamInfo.isActive ? 1f : Utils.DISABLED_ALPHA); 322 settingsButton.setEnabled(dreamInfo.isActive); 323 settingsButton.setFocusable(dreamInfo.isActive); 324 settingsButton.setOnClickListener(new OnClickListener(){ 325 @Override 326 public void onClick(View v) { 327 mBackend.launchSettings((DreamInfo) row.getTag()); 328 }}); 329 330 return row; 331 } 332 333 private View createDreamInfoRow(ViewGroup parent) { 334 final View row = mInflater.inflate(R.layout.dream_info_row, parent, false); 335 final View header = row.findViewById(android.R.id.widget_frame); 336 header.setOnClickListener(new OnClickListener(){ 337 @Override 338 public void onClick(View v) { 339 v.setPressed(true); 340 activate((DreamInfo) row.getTag()); 341 }}); 342 return row; 343 } 344 345 private DreamInfo getCurrentSelection() { 346 for (int i = 0; i < getCount(); i++) { 347 DreamInfo dreamInfo = getItem(i); 348 if (dreamInfo.isActive) 349 return dreamInfo; 350 } 351 return null; 352 } 353 private void activate(DreamInfo dreamInfo) { 354 if (dreamInfo.equals(getCurrentSelection())) 355 return; 356 for (int i = 0; i < getCount(); i++) { 357 getItem(i).isActive = false; 358 } 359 dreamInfo.isActive = true; 360 mBackend.setActiveDream(dreamInfo.componentName); 361 notifyDataSetChanged(); 362 } 363 } 364 365 private class PackageReceiver extends BroadcastReceiver { 366 @Override 367 public void onReceive(Context context, Intent intent) { 368 logd("PackageReceiver.onReceive"); 369 refreshFromBackend(); 370 } 371 } 372 } 373