1 /* 2 * Copyright (C) 2016 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.systemui.statusbar; 18 19 import android.annotation.NonNull; 20 import android.annotation.Nullable; 21 import android.app.AlertDialog; 22 import android.app.AppGlobals; 23 import android.app.Dialog; 24 import android.content.ComponentName; 25 import android.content.Context; 26 import android.content.DialogInterface; 27 import android.content.DialogInterface.OnClickListener; 28 import android.content.Intent; 29 import android.content.pm.IPackageManager; 30 import android.content.pm.PackageInfo; 31 import android.content.pm.ResolveInfo; 32 import android.graphics.drawable.Icon; 33 import android.graphics.Bitmap; 34 import android.graphics.Canvas; 35 import android.graphics.drawable.Drawable; 36 import android.hardware.input.InputManager; 37 import android.os.Handler; 38 import android.os.Looper; 39 import android.os.RemoteException; 40 import android.util.Log; 41 import android.util.SparseArray; 42 import android.view.ContextThemeWrapper; 43 import android.view.InputDevice; 44 import android.view.KeyCharacterMap; 45 import android.view.KeyEvent; 46 import android.view.KeyboardShortcutGroup; 47 import android.view.KeyboardShortcutInfo; 48 import android.view.LayoutInflater; 49 import android.view.View; 50 import android.view.View.AccessibilityDelegate; 51 import android.view.ViewGroup; 52 import android.view.Window; 53 import android.view.WindowManager.KeyboardShortcutsReceiver; 54 import android.view.accessibility.AccessibilityNodeInfo; 55 import android.widget.ImageView; 56 import android.widget.LinearLayout; 57 import android.widget.RelativeLayout; 58 import android.widget.TextView; 59 60 import com.android.internal.app.AssistUtils; 61 import com.android.settingslib.Utils; 62 import com.android.systemui.R; 63 import com.android.systemui.recents.Recents; 64 65 import java.util.ArrayList; 66 import java.util.Collections; 67 import java.util.Comparator; 68 import java.util.List; 69 70 import static android.content.Context.LAYOUT_INFLATER_SERVICE; 71 import static android.view.View.IMPORTANT_FOR_ACCESSIBILITY_YES; 72 import static android.view.WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG; 73 74 /** 75 * Contains functionality for handling keyboard shortcuts. 76 */ 77 public final class KeyboardShortcuts { 78 private static final String TAG = KeyboardShortcuts.class.getSimpleName(); 79 private static final Object sLock = new Object(); 80 private static KeyboardShortcuts sInstance; 81 82 private final SparseArray<String> mSpecialCharacterNames = new SparseArray<>(); 83 private final SparseArray<String> mModifierNames = new SparseArray<>(); 84 private final SparseArray<Drawable> mSpecialCharacterDrawables = new SparseArray<>(); 85 private final SparseArray<Drawable> mModifierDrawables = new SparseArray<>(); 86 87 private final Handler mHandler = new Handler(Looper.getMainLooper()); 88 private final Context mContext; 89 private final IPackageManager mPackageManager; 90 private final OnClickListener mDialogCloseListener = new DialogInterface.OnClickListener() { 91 public void onClick(DialogInterface dialog, int id) { 92 dismissKeyboardShortcuts(); 93 } 94 }; 95 private final Comparator<KeyboardShortcutInfo> mApplicationItemsComparator = 96 new Comparator<KeyboardShortcutInfo>() { 97 @Override 98 public int compare(KeyboardShortcutInfo ksh1, KeyboardShortcutInfo ksh2) { 99 boolean ksh1ShouldBeLast = ksh1.getLabel() == null 100 || ksh1.getLabel().toString().isEmpty(); 101 boolean ksh2ShouldBeLast = ksh2.getLabel() == null 102 || ksh2.getLabel().toString().isEmpty(); 103 if (ksh1ShouldBeLast && ksh2ShouldBeLast) { 104 return 0; 105 } 106 if (ksh1ShouldBeLast) { 107 return 1; 108 } 109 if (ksh2ShouldBeLast) { 110 return -1; 111 } 112 return (ksh1.getLabel().toString()).compareToIgnoreCase( 113 ksh2.getLabel().toString()); 114 } 115 }; 116 117 private Dialog mKeyboardShortcutsDialog; 118 private KeyCharacterMap mKeyCharacterMap; 119 KeyboardShortcuts(Context context)120 private KeyboardShortcuts(Context context) { 121 this.mContext = new ContextThemeWrapper(context, android.R.style.Theme_DeviceDefault_Light); 122 this.mPackageManager = AppGlobals.getPackageManager(); 123 loadResources(context); 124 } 125 getInstance(Context context)126 private static KeyboardShortcuts getInstance(Context context) { 127 if (sInstance == null) { 128 sInstance = new KeyboardShortcuts(context); 129 } 130 return sInstance; 131 } 132 show(Context context, int deviceId)133 public static void show(Context context, int deviceId) { 134 synchronized (sLock) { 135 if (sInstance != null && !sInstance.mContext.equals(context)) { 136 dismiss(); 137 } 138 getInstance(context).showKeyboardShortcuts(deviceId); 139 } 140 } 141 toggle(Context context, int deviceId)142 public static void toggle(Context context, int deviceId) { 143 synchronized (sLock) { 144 if (isShowing()) { 145 dismiss(); 146 } else { 147 show(context, deviceId); 148 } 149 } 150 } 151 dismiss()152 public static void dismiss() { 153 synchronized (sLock) { 154 if (sInstance != null) { 155 sInstance.dismissKeyboardShortcuts(); 156 sInstance = null; 157 } 158 } 159 } 160 isShowing()161 private static boolean isShowing() { 162 return sInstance != null && sInstance.mKeyboardShortcutsDialog != null 163 && sInstance.mKeyboardShortcutsDialog.isShowing(); 164 } 165 loadResources(Context context)166 private void loadResources(Context context) { 167 mSpecialCharacterNames.put( 168 KeyEvent.KEYCODE_HOME, context.getString(R.string.keyboard_key_home)); 169 mSpecialCharacterNames.put( 170 KeyEvent.KEYCODE_BACK, context.getString(R.string.keyboard_key_back)); 171 mSpecialCharacterNames.put( 172 KeyEvent.KEYCODE_DPAD_UP, context.getString(R.string.keyboard_key_dpad_up)); 173 mSpecialCharacterNames.put( 174 KeyEvent.KEYCODE_DPAD_DOWN, context.getString(R.string.keyboard_key_dpad_down)); 175 mSpecialCharacterNames.put( 176 KeyEvent.KEYCODE_DPAD_LEFT, context.getString(R.string.keyboard_key_dpad_left)); 177 mSpecialCharacterNames.put( 178 KeyEvent.KEYCODE_DPAD_RIGHT, context.getString(R.string.keyboard_key_dpad_right)); 179 mSpecialCharacterNames.put( 180 KeyEvent.KEYCODE_DPAD_CENTER, context.getString(R.string.keyboard_key_dpad_center)); 181 mSpecialCharacterNames.put(KeyEvent.KEYCODE_PERIOD, "."); 182 mSpecialCharacterNames.put( 183 KeyEvent.KEYCODE_TAB, context.getString(R.string.keyboard_key_tab)); 184 mSpecialCharacterNames.put( 185 KeyEvent.KEYCODE_SPACE, context.getString(R.string.keyboard_key_space)); 186 mSpecialCharacterNames.put( 187 KeyEvent.KEYCODE_ENTER, context.getString(R.string.keyboard_key_enter)); 188 mSpecialCharacterNames.put( 189 KeyEvent.KEYCODE_DEL, context.getString(R.string.keyboard_key_backspace)); 190 mSpecialCharacterNames.put(KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE, 191 context.getString(R.string.keyboard_key_media_play_pause)); 192 mSpecialCharacterNames.put( 193 KeyEvent.KEYCODE_MEDIA_STOP, context.getString(R.string.keyboard_key_media_stop)); 194 mSpecialCharacterNames.put( 195 KeyEvent.KEYCODE_MEDIA_NEXT, context.getString(R.string.keyboard_key_media_next)); 196 mSpecialCharacterNames.put(KeyEvent.KEYCODE_MEDIA_PREVIOUS, 197 context.getString(R.string.keyboard_key_media_previous)); 198 mSpecialCharacterNames.put(KeyEvent.KEYCODE_MEDIA_REWIND, 199 context.getString(R.string.keyboard_key_media_rewind)); 200 mSpecialCharacterNames.put(KeyEvent.KEYCODE_MEDIA_FAST_FORWARD, 201 context.getString(R.string.keyboard_key_media_fast_forward)); 202 mSpecialCharacterNames.put( 203 KeyEvent.KEYCODE_PAGE_UP, context.getString(R.string.keyboard_key_page_up)); 204 mSpecialCharacterNames.put( 205 KeyEvent.KEYCODE_PAGE_DOWN, context.getString(R.string.keyboard_key_page_down)); 206 mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_A, 207 context.getString(R.string.keyboard_key_button_template, "A")); 208 mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_B, 209 context.getString(R.string.keyboard_key_button_template, "B")); 210 mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_C, 211 context.getString(R.string.keyboard_key_button_template, "C")); 212 mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_X, 213 context.getString(R.string.keyboard_key_button_template, "X")); 214 mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_Y, 215 context.getString(R.string.keyboard_key_button_template, "Y")); 216 mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_Z, 217 context.getString(R.string.keyboard_key_button_template, "Z")); 218 mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_L1, 219 context.getString(R.string.keyboard_key_button_template, "L1")); 220 mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_R1, 221 context.getString(R.string.keyboard_key_button_template, "R1")); 222 mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_L2, 223 context.getString(R.string.keyboard_key_button_template, "L2")); 224 mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_R2, 225 context.getString(R.string.keyboard_key_button_template, "R2")); 226 mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_START, 227 context.getString(R.string.keyboard_key_button_template, "Start")); 228 mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_SELECT, 229 context.getString(R.string.keyboard_key_button_template, "Select")); 230 mSpecialCharacterNames.put(KeyEvent.KEYCODE_BUTTON_MODE, 231 context.getString(R.string.keyboard_key_button_template, "Mode")); 232 mSpecialCharacterNames.put( 233 KeyEvent.KEYCODE_FORWARD_DEL, context.getString(R.string.keyboard_key_forward_del)); 234 mSpecialCharacterNames.put(KeyEvent.KEYCODE_ESCAPE, "Esc"); 235 mSpecialCharacterNames.put(KeyEvent.KEYCODE_SYSRQ, "SysRq"); 236 mSpecialCharacterNames.put(KeyEvent.KEYCODE_BREAK, "Break"); 237 mSpecialCharacterNames.put(KeyEvent.KEYCODE_SCROLL_LOCK, "Scroll Lock"); 238 mSpecialCharacterNames.put( 239 KeyEvent.KEYCODE_MOVE_HOME, context.getString(R.string.keyboard_key_move_home)); 240 mSpecialCharacterNames.put( 241 KeyEvent.KEYCODE_MOVE_END, context.getString(R.string.keyboard_key_move_end)); 242 mSpecialCharacterNames.put( 243 KeyEvent.KEYCODE_INSERT, context.getString(R.string.keyboard_key_insert)); 244 mSpecialCharacterNames.put(KeyEvent.KEYCODE_F1, "F1"); 245 mSpecialCharacterNames.put(KeyEvent.KEYCODE_F2, "F2"); 246 mSpecialCharacterNames.put(KeyEvent.KEYCODE_F3, "F3"); 247 mSpecialCharacterNames.put(KeyEvent.KEYCODE_F4, "F4"); 248 mSpecialCharacterNames.put(KeyEvent.KEYCODE_F5, "F5"); 249 mSpecialCharacterNames.put(KeyEvent.KEYCODE_F6, "F6"); 250 mSpecialCharacterNames.put(KeyEvent.KEYCODE_F7, "F7"); 251 mSpecialCharacterNames.put(KeyEvent.KEYCODE_F8, "F8"); 252 mSpecialCharacterNames.put(KeyEvent.KEYCODE_F9, "F9"); 253 mSpecialCharacterNames.put(KeyEvent.KEYCODE_F10, "F10"); 254 mSpecialCharacterNames.put(KeyEvent.KEYCODE_F11, "F11"); 255 mSpecialCharacterNames.put(KeyEvent.KEYCODE_F12, "F12"); 256 mSpecialCharacterNames.put( 257 KeyEvent.KEYCODE_NUM_LOCK, context.getString(R.string.keyboard_key_num_lock)); 258 mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_0, 259 context.getString(R.string.keyboard_key_numpad_template, "0")); 260 mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_1, 261 context.getString(R.string.keyboard_key_numpad_template, "1")); 262 mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_2, 263 context.getString(R.string.keyboard_key_numpad_template, "2")); 264 mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_3, 265 context.getString(R.string.keyboard_key_numpad_template, "3")); 266 mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_4, 267 context.getString(R.string.keyboard_key_numpad_template, "4")); 268 mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_5, 269 context.getString(R.string.keyboard_key_numpad_template, "5")); 270 mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_6, 271 context.getString(R.string.keyboard_key_numpad_template, "6")); 272 mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_7, 273 context.getString(R.string.keyboard_key_numpad_template, "7")); 274 mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_8, 275 context.getString(R.string.keyboard_key_numpad_template, "8")); 276 mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_9, 277 context.getString(R.string.keyboard_key_numpad_template, "9")); 278 mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_DIVIDE, 279 context.getString(R.string.keyboard_key_numpad_template, "/")); 280 mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_MULTIPLY, 281 context.getString(R.string.keyboard_key_numpad_template, "*")); 282 mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_SUBTRACT, 283 context.getString(R.string.keyboard_key_numpad_template, "-")); 284 mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_ADD, 285 context.getString(R.string.keyboard_key_numpad_template, "+")); 286 mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_DOT, 287 context.getString(R.string.keyboard_key_numpad_template, ".")); 288 mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_COMMA, 289 context.getString(R.string.keyboard_key_numpad_template, ",")); 290 mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_ENTER, 291 context.getString(R.string.keyboard_key_numpad_template, 292 context.getString(R.string.keyboard_key_enter))); 293 mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_EQUALS, 294 context.getString(R.string.keyboard_key_numpad_template, "=")); 295 mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_LEFT_PAREN, 296 context.getString(R.string.keyboard_key_numpad_template, "(")); 297 mSpecialCharacterNames.put(KeyEvent.KEYCODE_NUMPAD_RIGHT_PAREN, 298 context.getString(R.string.keyboard_key_numpad_template, ")")); 299 mSpecialCharacterNames.put(KeyEvent.KEYCODE_ZENKAKU_HANKAKU, "半角/全角"); 300 mSpecialCharacterNames.put(KeyEvent.KEYCODE_EISU, "英数"); 301 mSpecialCharacterNames.put(KeyEvent.KEYCODE_MUHENKAN, "無変換"); 302 mSpecialCharacterNames.put(KeyEvent.KEYCODE_HENKAN, "変換"); 303 mSpecialCharacterNames.put(KeyEvent.KEYCODE_KATAKANA_HIRAGANA, "かな"); 304 305 mModifierNames.put(KeyEvent.META_META_ON, "Meta"); 306 mModifierNames.put(KeyEvent.META_CTRL_ON, "Ctrl"); 307 mModifierNames.put(KeyEvent.META_ALT_ON, "Alt"); 308 mModifierNames.put(KeyEvent.META_SHIFT_ON, "Shift"); 309 mModifierNames.put(KeyEvent.META_SYM_ON, "Sym"); 310 mModifierNames.put(KeyEvent.META_FUNCTION_ON, "Fn"); 311 312 mSpecialCharacterDrawables.put( 313 KeyEvent.KEYCODE_DEL, context.getDrawable(R.drawable.ic_ksh_key_backspace)); 314 mSpecialCharacterDrawables.put( 315 KeyEvent.KEYCODE_ENTER, context.getDrawable(R.drawable.ic_ksh_key_enter)); 316 mSpecialCharacterDrawables.put( 317 KeyEvent.KEYCODE_DPAD_UP, context.getDrawable(R.drawable.ic_ksh_key_up)); 318 mSpecialCharacterDrawables.put( 319 KeyEvent.KEYCODE_DPAD_RIGHT, context.getDrawable(R.drawable.ic_ksh_key_right)); 320 mSpecialCharacterDrawables.put( 321 KeyEvent.KEYCODE_DPAD_DOWN, context.getDrawable(R.drawable.ic_ksh_key_down)); 322 mSpecialCharacterDrawables.put( 323 KeyEvent.KEYCODE_DPAD_LEFT, context.getDrawable(R.drawable.ic_ksh_key_left)); 324 325 mModifierDrawables.put( 326 KeyEvent.META_META_ON, context.getDrawable(R.drawable.ic_ksh_key_meta)); 327 } 328 329 /** 330 * Retrieves a {@link KeyCharacterMap} and assigns it to mKeyCharacterMap. If the given id is an 331 * existing device, that device's map is used. Otherwise, it checks first all available devices 332 * and if there is a full keyboard it uses that map, otherwise falls back to the Virtual 333 * Keyboard with its default map. 334 */ retrieveKeyCharacterMap(int deviceId)335 private void retrieveKeyCharacterMap(int deviceId) { 336 final InputManager inputManager = InputManager.getInstance(); 337 if (deviceId != -1) { 338 final InputDevice inputDevice = inputManager.getInputDevice(deviceId); 339 if (inputDevice != null) { 340 mKeyCharacterMap = inputDevice.getKeyCharacterMap(); 341 return; 342 } 343 } 344 final int[] deviceIds = inputManager.getInputDeviceIds(); 345 for (int i = 0; i < deviceIds.length; ++i) { 346 final InputDevice inputDevice = inputManager.getInputDevice(deviceIds[i]); 347 // -1 is the Virtual Keyboard, with the default key map. Use that one only as last 348 // resort. 349 if (inputDevice.getId() != -1 && inputDevice.isFullKeyboard()) { 350 mKeyCharacterMap = inputDevice.getKeyCharacterMap(); 351 return; 352 } 353 } 354 final InputDevice inputDevice = inputManager.getInputDevice(-1); 355 mKeyCharacterMap = inputDevice.getKeyCharacterMap(); 356 } 357 showKeyboardShortcuts(int deviceId)358 private void showKeyboardShortcuts(int deviceId) { 359 retrieveKeyCharacterMap(deviceId); 360 Recents.getSystemServices().requestKeyboardShortcuts(mContext, 361 new KeyboardShortcutsReceiver() { 362 @Override 363 public void onKeyboardShortcutsReceived( 364 final List<KeyboardShortcutGroup> result) { 365 result.add(getSystemShortcuts()); 366 final KeyboardShortcutGroup appShortcuts = getDefaultApplicationShortcuts(); 367 if (appShortcuts != null) { 368 result.add(appShortcuts); 369 } 370 showKeyboardShortcutsDialog(result); 371 } 372 }, deviceId); 373 } 374 dismissKeyboardShortcuts()375 private void dismissKeyboardShortcuts() { 376 if (mKeyboardShortcutsDialog != null) { 377 mKeyboardShortcutsDialog.dismiss(); 378 mKeyboardShortcutsDialog = null; 379 } 380 } 381 getSystemShortcuts()382 private KeyboardShortcutGroup getSystemShortcuts() { 383 final KeyboardShortcutGroup systemGroup = new KeyboardShortcutGroup( 384 mContext.getString(R.string.keyboard_shortcut_group_system), true); 385 systemGroup.addItem(new KeyboardShortcutInfo( 386 mContext.getString(R.string.keyboard_shortcut_group_system_home), 387 KeyEvent.KEYCODE_ENTER, 388 KeyEvent.META_META_ON)); 389 systemGroup.addItem(new KeyboardShortcutInfo( 390 mContext.getString(R.string.keyboard_shortcut_group_system_back), 391 KeyEvent.KEYCODE_DEL, 392 KeyEvent.META_META_ON)); 393 systemGroup.addItem(new KeyboardShortcutInfo( 394 mContext.getString(R.string.keyboard_shortcut_group_system_recents), 395 KeyEvent.KEYCODE_TAB, 396 KeyEvent.META_ALT_ON)); 397 systemGroup.addItem(new KeyboardShortcutInfo( 398 mContext.getString( 399 R.string.keyboard_shortcut_group_system_notifications), 400 KeyEvent.KEYCODE_N, 401 KeyEvent.META_META_ON)); 402 systemGroup.addItem(new KeyboardShortcutInfo( 403 mContext.getString( 404 R.string.keyboard_shortcut_group_system_shortcuts_helper), 405 KeyEvent.KEYCODE_SLASH, 406 KeyEvent.META_META_ON)); 407 systemGroup.addItem(new KeyboardShortcutInfo( 408 mContext.getString( 409 R.string.keyboard_shortcut_group_system_switch_input), 410 KeyEvent.KEYCODE_SPACE, 411 KeyEvent.META_META_ON)); 412 return systemGroup; 413 } 414 getDefaultApplicationShortcuts()415 private KeyboardShortcutGroup getDefaultApplicationShortcuts() { 416 final int userId = mContext.getUserId(); 417 List<KeyboardShortcutInfo> keyboardShortcutInfoAppItems = new ArrayList<>(); 418 419 // Assist. 420 final AssistUtils assistUtils = new AssistUtils(mContext); 421 final ComponentName assistComponent = assistUtils.getAssistComponentForUser(userId); 422 PackageInfo assistPackageInfo = null; 423 try { 424 assistPackageInfo = mPackageManager.getPackageInfo( 425 assistComponent.getPackageName(), 0, userId); 426 } catch (RemoteException e) { 427 Log.e(TAG, "PackageManagerService is dead"); 428 } 429 430 if (assistPackageInfo != null) { 431 final Icon assistIcon = Icon.createWithResource( 432 assistPackageInfo.applicationInfo.packageName, 433 assistPackageInfo.applicationInfo.icon); 434 435 keyboardShortcutInfoAppItems.add(new KeyboardShortcutInfo( 436 mContext.getString(R.string.keyboard_shortcut_group_applications_assist), 437 assistIcon, 438 KeyEvent.KEYCODE_UNKNOWN, 439 KeyEvent.META_META_ON)); 440 } 441 442 // Browser. 443 final Icon browserIcon = getIconForIntentCategory(Intent.CATEGORY_APP_BROWSER, userId); 444 if (browserIcon != null) { 445 keyboardShortcutInfoAppItems.add(new KeyboardShortcutInfo( 446 mContext.getString(R.string.keyboard_shortcut_group_applications_browser), 447 browserIcon, 448 KeyEvent.KEYCODE_B, 449 KeyEvent.META_META_ON)); 450 } 451 452 453 // Contacts. 454 final Icon contactsIcon = getIconForIntentCategory(Intent.CATEGORY_APP_CONTACTS, userId); 455 if (contactsIcon != null) { 456 keyboardShortcutInfoAppItems.add(new KeyboardShortcutInfo( 457 mContext.getString(R.string.keyboard_shortcut_group_applications_contacts), 458 contactsIcon, 459 KeyEvent.KEYCODE_C, 460 KeyEvent.META_META_ON)); 461 } 462 463 // Email. 464 final Icon emailIcon = getIconForIntentCategory(Intent.CATEGORY_APP_EMAIL, userId); 465 if (emailIcon != null) { 466 keyboardShortcutInfoAppItems.add(new KeyboardShortcutInfo( 467 mContext.getString(R.string.keyboard_shortcut_group_applications_email), 468 emailIcon, 469 KeyEvent.KEYCODE_E, 470 KeyEvent.META_META_ON)); 471 } 472 473 // Messaging. 474 final Icon messagingIcon = getIconForIntentCategory(Intent.CATEGORY_APP_MESSAGING, userId); 475 if (messagingIcon != null) { 476 keyboardShortcutInfoAppItems.add(new KeyboardShortcutInfo( 477 mContext.getString(R.string.keyboard_shortcut_group_applications_im), 478 messagingIcon, 479 KeyEvent.KEYCODE_T, 480 KeyEvent.META_META_ON)); 481 } 482 483 // Music. 484 final Icon musicIcon = getIconForIntentCategory(Intent.CATEGORY_APP_MUSIC, userId); 485 if (musicIcon != null) { 486 keyboardShortcutInfoAppItems.add(new KeyboardShortcutInfo( 487 mContext.getString(R.string.keyboard_shortcut_group_applications_music), 488 musicIcon, 489 KeyEvent.KEYCODE_P, 490 KeyEvent.META_META_ON)); 491 } 492 493 // Calendar. 494 final Icon calendarIcon = getIconForIntentCategory(Intent.CATEGORY_APP_CALENDAR, userId); 495 if (calendarIcon != null) { 496 keyboardShortcutInfoAppItems.add(new KeyboardShortcutInfo( 497 mContext.getString(R.string.keyboard_shortcut_group_applications_calendar), 498 calendarIcon, 499 KeyEvent.KEYCODE_L, 500 KeyEvent.META_META_ON)); 501 } 502 503 final int itemsSize = keyboardShortcutInfoAppItems.size(); 504 if (itemsSize == 0) { 505 return null; 506 } 507 508 // Sorts by label, case insensitive with nulls and/or empty labels last. 509 Collections.sort(keyboardShortcutInfoAppItems, mApplicationItemsComparator); 510 return new KeyboardShortcutGroup( 511 mContext.getString(R.string.keyboard_shortcut_group_applications), 512 keyboardShortcutInfoAppItems, 513 true); 514 } 515 getIconForIntentCategory(String intentCategory, int userId)516 private Icon getIconForIntentCategory(String intentCategory, int userId) { 517 final Intent intent = new Intent(Intent.ACTION_MAIN); 518 intent.addCategory(intentCategory); 519 520 final PackageInfo packageInfo = getPackageInfoForIntent(intent, userId); 521 if (packageInfo != null && packageInfo.applicationInfo.icon != 0) { 522 return Icon.createWithResource( 523 packageInfo.applicationInfo.packageName, 524 packageInfo.applicationInfo.icon); 525 } 526 return null; 527 } 528 getPackageInfoForIntent(Intent intent, int userId)529 private PackageInfo getPackageInfoForIntent(Intent intent, int userId) { 530 try { 531 ResolveInfo handler; 532 handler = mPackageManager.resolveIntent( 533 intent, intent.resolveTypeIfNeeded(mContext.getContentResolver()), 0, userId); 534 if (handler == null || handler.activityInfo == null) { 535 return null; 536 } 537 return mPackageManager.getPackageInfo(handler.activityInfo.packageName, 0, userId); 538 } catch (RemoteException e) { 539 Log.e(TAG, "PackageManagerService is dead", e); 540 return null; 541 } 542 } 543 showKeyboardShortcutsDialog( final List<KeyboardShortcutGroup> keyboardShortcutGroups)544 private void showKeyboardShortcutsDialog( 545 final List<KeyboardShortcutGroup> keyboardShortcutGroups) { 546 // Need to post on the main thread. 547 mHandler.post(new Runnable() { 548 @Override 549 public void run() { 550 handleShowKeyboardShortcuts(keyboardShortcutGroups); 551 } 552 }); 553 } 554 handleShowKeyboardShortcuts(List<KeyboardShortcutGroup> keyboardShortcutGroups)555 private void handleShowKeyboardShortcuts(List<KeyboardShortcutGroup> keyboardShortcutGroups) { 556 AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(mContext); 557 LayoutInflater inflater = (LayoutInflater) mContext.getSystemService( 558 LAYOUT_INFLATER_SERVICE); 559 final View keyboardShortcutsView = inflater.inflate( 560 R.layout.keyboard_shortcuts_view, null); 561 populateKeyboardShortcuts((LinearLayout) keyboardShortcutsView.findViewById( 562 R.id.keyboard_shortcuts_container), keyboardShortcutGroups); 563 dialogBuilder.setView(keyboardShortcutsView); 564 dialogBuilder.setPositiveButton(R.string.quick_settings_done, mDialogCloseListener); 565 mKeyboardShortcutsDialog = dialogBuilder.create(); 566 mKeyboardShortcutsDialog.setCanceledOnTouchOutside(true); 567 Window keyboardShortcutsWindow = mKeyboardShortcutsDialog.getWindow(); 568 keyboardShortcutsWindow.setType(TYPE_SYSTEM_DIALOG); 569 mKeyboardShortcutsDialog.show(); 570 } 571 populateKeyboardShortcuts(LinearLayout keyboardShortcutsLayout, List<KeyboardShortcutGroup> keyboardShortcutGroups)572 private void populateKeyboardShortcuts(LinearLayout keyboardShortcutsLayout, 573 List<KeyboardShortcutGroup> keyboardShortcutGroups) { 574 LayoutInflater inflater = LayoutInflater.from(mContext); 575 final int keyboardShortcutGroupsSize = keyboardShortcutGroups.size(); 576 TextView shortcutsKeyView = (TextView) inflater.inflate( 577 R.layout.keyboard_shortcuts_key_view, null, false); 578 shortcutsKeyView.measure( 579 View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED); 580 final int shortcutKeyTextItemMinWidth = shortcutsKeyView.getMeasuredHeight(); 581 // Needed to be able to scale the image items to the same height as the text items. 582 final int shortcutKeyIconItemHeightWidth = shortcutsKeyView.getMeasuredHeight() 583 - shortcutsKeyView.getPaddingTop() 584 - shortcutsKeyView.getPaddingBottom(); 585 for (int i = 0; i < keyboardShortcutGroupsSize; i++) { 586 KeyboardShortcutGroup group = keyboardShortcutGroups.get(i); 587 TextView categoryTitle = (TextView) inflater.inflate( 588 R.layout.keyboard_shortcuts_category_title, keyboardShortcutsLayout, false); 589 categoryTitle.setText(group.getLabel()); 590 categoryTitle.setTextColor(group.isSystemGroup() 591 ? Utils.getColorAccent(mContext) 592 : mContext.getColor(R.color.ksh_application_group_color)); 593 keyboardShortcutsLayout.addView(categoryTitle); 594 595 LinearLayout shortcutContainer = (LinearLayout) inflater.inflate( 596 R.layout.keyboard_shortcuts_container, keyboardShortcutsLayout, false); 597 final int itemsSize = group.getItems().size(); 598 for (int j = 0; j < itemsSize; j++) { 599 KeyboardShortcutInfo info = group.getItems().get(j); 600 List<StringDrawableContainer> shortcutKeys = getHumanReadableShortcutKeys(info); 601 if (shortcutKeys == null) { 602 // Ignore shortcuts we can't display keys for. 603 Log.w(TAG, "Keyboard Shortcut contains unsupported keys, skipping."); 604 continue; 605 } 606 View shortcutView = inflater.inflate(R.layout.keyboard_shortcut_app_item, 607 shortcutContainer, false); 608 609 if (info.getIcon() != null) { 610 ImageView shortcutIcon = (ImageView) shortcutView 611 .findViewById(R.id.keyboard_shortcuts_icon); 612 shortcutIcon.setImageIcon(info.getIcon()); 613 shortcutIcon.setVisibility(View.VISIBLE); 614 } 615 616 TextView shortcutKeyword = (TextView) shortcutView 617 .findViewById(R.id.keyboard_shortcuts_keyword); 618 shortcutKeyword.setText(info.getLabel()); 619 if (info.getIcon() != null) { 620 RelativeLayout.LayoutParams lp = 621 (RelativeLayout.LayoutParams) shortcutKeyword.getLayoutParams(); 622 lp.removeRule(RelativeLayout.ALIGN_PARENT_START); 623 shortcutKeyword.setLayoutParams(lp); 624 } 625 626 ViewGroup shortcutItemsContainer = (ViewGroup) shortcutView 627 .findViewById(R.id.keyboard_shortcuts_item_container); 628 final int shortcutKeysSize = shortcutKeys.size(); 629 for (int k = 0; k < shortcutKeysSize; k++) { 630 StringDrawableContainer shortcutRepresentation = shortcutKeys.get(k); 631 if (shortcutRepresentation.mDrawable != null) { 632 ImageView shortcutKeyIconView = (ImageView) inflater.inflate( 633 R.layout.keyboard_shortcuts_key_icon_view, shortcutItemsContainer, 634 false); 635 Bitmap bitmap = Bitmap.createBitmap(shortcutKeyIconItemHeightWidth, 636 shortcutKeyIconItemHeightWidth, Bitmap.Config.ARGB_8888); 637 Canvas canvas = new Canvas(bitmap); 638 shortcutRepresentation.mDrawable.setBounds(0, 0, canvas.getWidth(), 639 canvas.getHeight()); 640 shortcutRepresentation.mDrawable.draw(canvas); 641 shortcutKeyIconView.setImageBitmap(bitmap); 642 shortcutKeyIconView.setImportantForAccessibility( 643 IMPORTANT_FOR_ACCESSIBILITY_YES); 644 shortcutKeyIconView.setAccessibilityDelegate( 645 new ShortcutKeyAccessibilityDelegate( 646 shortcutRepresentation.mString)); 647 shortcutItemsContainer.addView(shortcutKeyIconView); 648 } else if (shortcutRepresentation.mString != null) { 649 TextView shortcutKeyTextView = (TextView) inflater.inflate( 650 R.layout.keyboard_shortcuts_key_view, shortcutItemsContainer, 651 false); 652 shortcutKeyTextView.setMinimumWidth(shortcutKeyTextItemMinWidth); 653 shortcutKeyTextView.setText(shortcutRepresentation.mString); 654 shortcutKeyTextView.setAccessibilityDelegate( 655 new ShortcutKeyAccessibilityDelegate( 656 shortcutRepresentation.mString)); 657 shortcutItemsContainer.addView(shortcutKeyTextView); 658 } 659 } 660 shortcutContainer.addView(shortcutView); 661 } 662 keyboardShortcutsLayout.addView(shortcutContainer); 663 if (i < keyboardShortcutGroupsSize - 1) { 664 View separator = inflater.inflate( 665 R.layout.keyboard_shortcuts_category_separator, keyboardShortcutsLayout, 666 false); 667 keyboardShortcutsLayout.addView(separator); 668 } 669 } 670 } 671 getHumanReadableShortcutKeys(KeyboardShortcutInfo info)672 private List<StringDrawableContainer> getHumanReadableShortcutKeys(KeyboardShortcutInfo info) { 673 List<StringDrawableContainer> shortcutKeys = getHumanReadableModifiers(info); 674 if (shortcutKeys == null) { 675 return null; 676 } 677 String shortcutKeyString = null; 678 Drawable shortcutKeyDrawable = null; 679 if (info.getBaseCharacter() > Character.MIN_VALUE) { 680 shortcutKeyString = String.valueOf(info.getBaseCharacter()); 681 } else if (mSpecialCharacterDrawables.get(info.getKeycode()) != null) { 682 shortcutKeyDrawable = mSpecialCharacterDrawables.get(info.getKeycode()); 683 shortcutKeyString = mSpecialCharacterNames.get(info.getKeycode()); 684 } else if (mSpecialCharacterNames.get(info.getKeycode()) != null) { 685 shortcutKeyString = mSpecialCharacterNames.get(info.getKeycode()); 686 } else { 687 // Special case for shortcuts with no base key or keycode. 688 if (info.getKeycode() == KeyEvent.KEYCODE_UNKNOWN) { 689 return shortcutKeys; 690 } 691 char displayLabel = mKeyCharacterMap.getDisplayLabel(info.getKeycode()); 692 if (displayLabel != 0) { 693 shortcutKeyString = String.valueOf(displayLabel); 694 } else { 695 return null; 696 } 697 } 698 699 if (shortcutKeyString != null) { 700 shortcutKeys.add(new StringDrawableContainer(shortcutKeyString, shortcutKeyDrawable)); 701 } else { 702 Log.w(TAG, "Keyboard Shortcut does not have a text representation, skipping."); 703 } 704 705 return shortcutKeys; 706 } 707 getHumanReadableModifiers(KeyboardShortcutInfo info)708 private List<StringDrawableContainer> getHumanReadableModifiers(KeyboardShortcutInfo info) { 709 final List<StringDrawableContainer> shortcutKeys = new ArrayList<>(); 710 int modifiers = info.getModifiers(); 711 if (modifiers == 0) { 712 return shortcutKeys; 713 } 714 for(int i = 0; i < mModifierNames.size(); ++i) { 715 final int supportedModifier = mModifierNames.keyAt(i); 716 if ((modifiers & supportedModifier) != 0) { 717 shortcutKeys.add(new StringDrawableContainer( 718 mModifierNames.get(supportedModifier), 719 mModifierDrawables.get(supportedModifier))); 720 modifiers &= ~supportedModifier; 721 } 722 } 723 if (modifiers != 0) { 724 // Remaining unsupported modifiers, don't show anything. 725 return null; 726 } 727 return shortcutKeys; 728 } 729 730 private final class ShortcutKeyAccessibilityDelegate extends AccessibilityDelegate { 731 private String mContentDescription; 732 ShortcutKeyAccessibilityDelegate(String contentDescription)733 ShortcutKeyAccessibilityDelegate(String contentDescription) { 734 mContentDescription = contentDescription; 735 } 736 737 @Override onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info)738 public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 739 super.onInitializeAccessibilityNodeInfo(host, info); 740 if (mContentDescription != null) { 741 info.setContentDescription(mContentDescription.toLowerCase()); 742 } 743 } 744 } 745 746 private static final class StringDrawableContainer { 747 @NonNull 748 public String mString; 749 @Nullable 750 public Drawable mDrawable; 751 StringDrawableContainer(String string, Drawable drawable)752 StringDrawableContainer(String string, Drawable drawable) { 753 mString = string; 754 mDrawable = drawable; 755 } 756 } 757 } 758