Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 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.server.display; |
| 18 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 19 | import com.android.internal.util.IndentingPrintWriter; |
| 20 | |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 21 | import android.Manifest; |
| 22 | import android.content.Context; |
| 23 | import android.content.pm.PackageManager; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 24 | import android.hardware.display.DisplayManagerGlobal; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 25 | import android.hardware.display.IDisplayManager; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 26 | import android.hardware.display.IDisplayManagerCallback; |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 27 | import android.hardware.display.WifiDisplayStatus; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 28 | import android.os.Binder; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 29 | import android.os.Handler; |
Jeff Brown | 64a55af | 2012-08-26 02:47:39 -0700 | [diff] [blame] | 30 | import android.os.IBinder; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 31 | import android.os.Looper; |
| 32 | import android.os.Message; |
| 33 | import android.os.RemoteException; |
| 34 | import android.os.SystemClock; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 35 | import android.os.SystemProperties; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 36 | import android.util.Slog; |
| 37 | import android.util.SparseArray; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 38 | import android.view.Display; |
| 39 | import android.view.DisplayInfo; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 40 | |
| 41 | import java.io.FileDescriptor; |
| 42 | import java.io.PrintWriter; |
| 43 | import java.util.ArrayList; |
| 44 | |
| 45 | /** |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 46 | * Manages attached displays. |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 47 | * <p> |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 48 | * The {@link DisplayManagerService} manages the global lifecycle of displays, |
| 49 | * decides how to configure logical displays based on the physical display devices currently |
| 50 | * attached, sends notifications to the system and to applications when the state |
| 51 | * changes, and so on. |
| 52 | * </p><p> |
| 53 | * The display manager service relies on a collection of {@link DisplayAdapter} components, |
| 54 | * for discovering and configuring physical display devices attached to the system. |
| 55 | * There are separate display adapters for each manner that devices are attached: |
| 56 | * one display adapter for built-in local displays, one for simulated non-functional |
| 57 | * displays when the system is headless, one for simulated overlay displays used for |
| 58 | * development, one for wifi displays, etc. |
| 59 | * </p><p> |
| 60 | * Display adapters are only weakly coupled to the display manager service. |
| 61 | * Display adapters communicate changes in display device state to the display manager |
Craig Mautner | 722285e | 2012-09-07 13:55:58 -0700 | [diff] [blame] | 62 | * service asynchronously via a {@link DisplayAdapter.Listener} registered |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 63 | * by the display manager service. This separation of concerns is important for |
| 64 | * two main reasons. First, it neatly encapsulates the responsibilities of these |
| 65 | * two classes: display adapters handle individual display devices whereas |
| 66 | * the display manager service handles the global state. Second, it eliminates |
| 67 | * the potential for deadlocks resulting from asynchronous display device discovery. |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 68 | * </p> |
| 69 | * |
| 70 | * <h3>Synchronization</h3> |
| 71 | * <p> |
| 72 | * Because the display manager may be accessed by multiple threads, the synchronization |
| 73 | * story gets a little complicated. In particular, the window manager may call into |
| 74 | * the display manager while holding a surface transaction with the expectation that |
| 75 | * it can apply changes immediately. Unfortunately, that means we can't just do |
| 76 | * everything asynchronously (*grump*). |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 77 | * </p><p> |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 78 | * To make this work, all of the objects that belong to the display manager must |
| 79 | * use the same lock. We call this lock the synchronization root and it has a unique |
| 80 | * type {@link DisplayManagerService.SyncRoot}. Methods that require this lock are |
| 81 | * named with the "Locked" suffix. |
| 82 | * </p><p> |
| 83 | * Where things get tricky is that the display manager is not allowed to make |
| 84 | * any potentially reentrant calls, especially into the window manager. We generally |
| 85 | * avoid this by making all potentially reentrant out-calls asynchronous. |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 86 | * </p> |
| 87 | */ |
| 88 | public final class DisplayManagerService extends IDisplayManager.Stub { |
| 89 | private static final String TAG = "DisplayManagerService"; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 90 | private static final boolean DEBUG = false; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 91 | |
Jeff Brown | bbd28a2 | 2012-09-20 16:47:15 -0700 | [diff] [blame] | 92 | // When this system property is set to 0, WFD is forcibly disabled on boot. |
| 93 | // When this system property is set to 1, WFD is forcibly enabled on boot. |
| 94 | // Otherwise WFD is enabled according to the value of config_enableWifiDisplay. |
| 95 | private static final String FORCE_WIFI_DISPLAY_ENABLE = "persist.debug.wfd.enable"; |
| 96 | |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 97 | private static final String SYSTEM_HEADLESS = "ro.config.headless"; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 98 | private static final long WAIT_FOR_DEFAULT_DISPLAY_TIMEOUT = 10000; |
| 99 | |
| 100 | private static final int MSG_REGISTER_DEFAULT_DISPLAY_ADAPTER = 1; |
| 101 | private static final int MSG_REGISTER_ADDITIONAL_DISPLAY_ADAPTERS = 2; |
| 102 | private static final int MSG_DELIVER_DISPLAY_EVENT = 3; |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 103 | private static final int MSG_REQUEST_TRAVERSAL = 4; |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 104 | private static final int MSG_UPDATE_VIEWPORT = 5; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 105 | |
Jeff Brown | 9e316a1 | 2012-10-08 19:17:06 -0700 | [diff] [blame] | 106 | private static final int DISPLAY_BLANK_STATE_UNKNOWN = 0; |
| 107 | private static final int DISPLAY_BLANK_STATE_BLANKED = 1; |
| 108 | private static final int DISPLAY_BLANK_STATE_UNBLANKED = 2; |
| 109 | |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 110 | private final Context mContext; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 111 | private final boolean mHeadless; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 112 | private final DisplayManagerHandler mHandler; |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 113 | private final Handler mUiHandler; |
| 114 | private final DisplayAdapterListener mDisplayAdapterListener; |
| 115 | private WindowManagerFuncs mWindowManagerFuncs; |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 116 | private InputManagerFuncs mInputManagerFuncs; |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 117 | |
| 118 | // The synchronization root for the display manager. |
| 119 | // This lock guards most of the display manager's state. |
| 120 | private final SyncRoot mSyncRoot = new SyncRoot(); |
| 121 | |
| 122 | // True if in safe mode. |
| 123 | // This option may disable certain display adapters. |
| 124 | public boolean mSafeMode; |
| 125 | |
| 126 | // True if we are in a special boot mode where only core applications and |
| 127 | // services should be started. This option may disable certain display adapters. |
| 128 | public boolean mOnlyCore; |
| 129 | |
| 130 | // All callback records indexed by calling process id. |
| 131 | public final SparseArray<CallbackRecord> mCallbacks = |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 132 | new SparseArray<CallbackRecord>(); |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 133 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 134 | // List of all currently registered display adapters. |
| 135 | private final ArrayList<DisplayAdapter> mDisplayAdapters = new ArrayList<DisplayAdapter>(); |
| 136 | |
| 137 | // List of all currently connected display devices. |
| 138 | private final ArrayList<DisplayDevice> mDisplayDevices = new ArrayList<DisplayDevice>(); |
| 139 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 140 | // List of all removed display devices. |
| 141 | private final ArrayList<DisplayDevice> mRemovedDisplayDevices = new ArrayList<DisplayDevice>(); |
| 142 | |
| 143 | // List of all logical displays indexed by logical display id. |
| 144 | private final SparseArray<LogicalDisplay> mLogicalDisplays = |
| 145 | new SparseArray<LogicalDisplay>(); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 146 | private int mNextNonDefaultDisplayId = Display.DEFAULT_DISPLAY + 1; |
| 147 | |
Jeff Brown | 9e316a1 | 2012-10-08 19:17:06 -0700 | [diff] [blame] | 148 | // Set to true if all displays have been blanked by the power manager. |
| 149 | private int mAllDisplayBlankStateFromPowerManager; |
| 150 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 151 | // Set to true when there are pending display changes that have yet to be applied |
| 152 | // to the surface flinger state. |
| 153 | private boolean mPendingTraversal; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 154 | |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 155 | // The Wifi display adapter, or null if not registered. |
| 156 | private WifiDisplayAdapter mWifiDisplayAdapter; |
| 157 | |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 158 | // Viewports of the default display and the display that should receive touch |
| 159 | // input from an external source. Used by the input system. |
| 160 | private final DisplayViewport mDefaultViewport = new DisplayViewport(); |
| 161 | private final DisplayViewport mExternalTouchViewport = new DisplayViewport(); |
| 162 | |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 163 | // Persistent data store for all internal settings maintained by the display manager service. |
| 164 | private final PersistentDataStore mPersistentDataStore = new PersistentDataStore(); |
| 165 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 166 | // Temporary callback list, used when sending display events to applications. |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 167 | // May be used outside of the lock but only on the handler thread. |
| 168 | private final ArrayList<CallbackRecord> mTempCallbacks = new ArrayList<CallbackRecord>(); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 169 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 170 | // Temporary display info, used for comparing display configurations. |
| 171 | private final DisplayInfo mTempDisplayInfo = new DisplayInfo(); |
| 172 | |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 173 | // Temporary viewports, used when sending new viewport information to the |
| 174 | // input system. May be used outside of the lock but only on the handler thread. |
| 175 | private final DisplayViewport mTempDefaultViewport = new DisplayViewport(); |
| 176 | private final DisplayViewport mTempExternalTouchViewport = new DisplayViewport(); |
| 177 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 178 | public DisplayManagerService(Context context, Handler mainHandler, Handler uiHandler) { |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 179 | mContext = context; |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 180 | mHeadless = SystemProperties.get(SYSTEM_HEADLESS).equals("1"); |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 181 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 182 | mHandler = new DisplayManagerHandler(mainHandler.getLooper()); |
| 183 | mUiHandler = uiHandler; |
| 184 | mDisplayAdapterListener = new DisplayAdapterListener(); |
| 185 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 186 | mHandler.sendEmptyMessage(MSG_REGISTER_DEFAULT_DISPLAY_ADAPTER); |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 187 | } |
| 188 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 189 | /** |
| 190 | * Pauses the boot process to wait for the first display to be initialized. |
| 191 | */ |
| 192 | public boolean waitForDefaultDisplay() { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 193 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 194 | long timeout = SystemClock.uptimeMillis() + WAIT_FOR_DEFAULT_DISPLAY_TIMEOUT; |
| 195 | while (mLogicalDisplays.get(Display.DEFAULT_DISPLAY) == null) { |
| 196 | long delay = timeout - SystemClock.uptimeMillis(); |
| 197 | if (delay <= 0) { |
| 198 | return false; |
| 199 | } |
| 200 | if (DEBUG) { |
| 201 | Slog.d(TAG, "waitForDefaultDisplay: waiting, timeout=" + delay); |
| 202 | } |
| 203 | try { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 204 | mSyncRoot.wait(delay); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 205 | } catch (InterruptedException ex) { |
| 206 | } |
| 207 | } |
| 208 | } |
| 209 | return true; |
| 210 | } |
| 211 | |
| 212 | /** |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 213 | * Called during initialization to associate the display manager with the |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 214 | * window manager. |
| 215 | */ |
| 216 | public void setWindowManager(WindowManagerFuncs windowManagerFuncs) { |
| 217 | synchronized (mSyncRoot) { |
| 218 | mWindowManagerFuncs = windowManagerFuncs; |
Craig Mautner | 65d11b3 | 2012-10-01 13:59:52 -0700 | [diff] [blame] | 219 | scheduleTraversalLocked(false); |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 220 | } |
| 221 | } |
| 222 | |
| 223 | /** |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 224 | * Called during initialization to associate the display manager with the |
| 225 | * input manager. |
| 226 | */ |
| 227 | public void setInputManager(InputManagerFuncs inputManagerFuncs) { |
| 228 | synchronized (mSyncRoot) { |
| 229 | mInputManagerFuncs = inputManagerFuncs; |
Craig Mautner | 65d11b3 | 2012-10-01 13:59:52 -0700 | [diff] [blame] | 230 | scheduleTraversalLocked(false); |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 231 | } |
| 232 | } |
| 233 | |
| 234 | /** |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 235 | * Called when the system is ready to go. |
| 236 | */ |
| 237 | public void systemReady(boolean safeMode, boolean onlyCore) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 238 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 239 | mSafeMode = safeMode; |
| 240 | mOnlyCore = onlyCore; |
| 241 | } |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 242 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 243 | mHandler.sendEmptyMessage(MSG_REGISTER_ADDITIONAL_DISPLAY_ADAPTERS); |
| 244 | } |
| 245 | |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 246 | /** |
| 247 | * Returns true if the device is headless. |
| 248 | * |
| 249 | * @return True if the device is headless. |
| 250 | */ |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 251 | public boolean isHeadless() { |
| 252 | return mHeadless; |
| 253 | } |
| 254 | |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 255 | /** |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 256 | * Overrides the display information of a particular logical display. |
| 257 | * This is used by the window manager to control the size and characteristics |
| 258 | * of the default display. It is expected to apply the requested change |
| 259 | * to the display information synchronously so that applications will immediately |
| 260 | * observe the new state. |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 261 | * |
Jeff Brown | 64a55af | 2012-08-26 02:47:39 -0700 | [diff] [blame] | 262 | * @param displayId The logical display id. |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 263 | * @param info The new data to be stored. |
Jeff Brown | 64a55af | 2012-08-26 02:47:39 -0700 | [diff] [blame] | 264 | */ |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 265 | public void setDisplayInfoOverrideFromWindowManager( |
| 266 | int displayId, DisplayInfo info) { |
| 267 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 268 | LogicalDisplay display = mLogicalDisplays.get(displayId); |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 269 | if (display != null) { |
| 270 | mTempDisplayInfo.copyFrom(display.getDisplayInfoLocked()); |
| 271 | display.setDisplayInfoOverrideFromWindowManagerLocked(info); |
| 272 | if (!mTempDisplayInfo.equals(display.getDisplayInfoLocked())) { |
| 273 | sendDisplayEventLocked(displayId, DisplayManagerGlobal.EVENT_DISPLAY_CHANGED); |
Craig Mautner | 65d11b3 | 2012-10-01 13:59:52 -0700 | [diff] [blame] | 274 | scheduleTraversalLocked(false); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 275 | } |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 276 | } |
| 277 | } |
| 278 | } |
| 279 | |
| 280 | /** |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 281 | * Called by the window manager to perform traversals while holding a |
| 282 | * surface flinger transaction. |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 283 | */ |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 284 | public void performTraversalInTransactionFromWindowManager() { |
| 285 | synchronized (mSyncRoot) { |
| 286 | if (!mPendingTraversal) { |
| 287 | return; |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 288 | } |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 289 | mPendingTraversal = false; |
| 290 | |
| 291 | performTraversalInTransactionLocked(); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 292 | } |
| 293 | } |
| 294 | |
| 295 | /** |
Jeff Brown | 9e316a1 | 2012-10-08 19:17:06 -0700 | [diff] [blame] | 296 | * Called by the power manager to blank all displays. |
| 297 | */ |
| 298 | public void blankAllDisplaysFromPowerManager() { |
| 299 | synchronized (mSyncRoot) { |
| 300 | if (mAllDisplayBlankStateFromPowerManager != DISPLAY_BLANK_STATE_BLANKED) { |
| 301 | mAllDisplayBlankStateFromPowerManager = DISPLAY_BLANK_STATE_BLANKED; |
| 302 | |
| 303 | final int count = mDisplayDevices.size(); |
| 304 | for (int i = 0; i < count; i++) { |
| 305 | DisplayDevice device = mDisplayDevices.get(i); |
| 306 | device.blankLocked(); |
| 307 | } |
| 308 | } |
| 309 | } |
| 310 | } |
| 311 | |
| 312 | /** |
| 313 | * Called by the power manager to unblank all displays. |
| 314 | */ |
| 315 | public void unblankAllDisplaysFromPowerManager() { |
| 316 | synchronized (mSyncRoot) { |
| 317 | if (mAllDisplayBlankStateFromPowerManager != DISPLAY_BLANK_STATE_UNBLANKED) { |
| 318 | mAllDisplayBlankStateFromPowerManager = DISPLAY_BLANK_STATE_UNBLANKED; |
| 319 | |
| 320 | final int count = mDisplayDevices.size(); |
| 321 | for (int i = 0; i < count; i++) { |
| 322 | DisplayDevice device = mDisplayDevices.get(i); |
| 323 | device.unblankLocked(); |
| 324 | } |
| 325 | } |
| 326 | } |
| 327 | } |
| 328 | |
| 329 | /** |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 330 | * Returns information about the specified logical display. |
| 331 | * |
| 332 | * @param displayId The logical display id. |
Craig Mautner | 722285e | 2012-09-07 13:55:58 -0700 | [diff] [blame] | 333 | * @return The logical display info, or null if the display does not exist. The |
| 334 | * returned object must be treated as immutable. |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 335 | */ |
| 336 | @Override // Binder call |
| 337 | public DisplayInfo getDisplayInfo(int displayId) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 338 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 339 | LogicalDisplay display = mLogicalDisplays.get(displayId); |
| 340 | if (display != null) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 341 | return display.getDisplayInfoLocked(); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 342 | } |
| 343 | return null; |
| 344 | } |
| 345 | } |
| 346 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 347 | /** |
| 348 | * Returns the list of all display ids. |
| 349 | */ |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 350 | @Override // Binder call |
| 351 | public int[] getDisplayIds() { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 352 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 353 | final int count = mLogicalDisplays.size(); |
| 354 | int[] displayIds = new int[count]; |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 355 | for (int i = 0; i < count; i++) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 356 | displayIds[i] = mLogicalDisplays.keyAt(i); |
| 357 | } |
| 358 | return displayIds; |
| 359 | } |
| 360 | } |
| 361 | |
| 362 | @Override // Binder call |
| 363 | public void registerCallback(IDisplayManagerCallback callback) { |
| 364 | if (callback == null) { |
| 365 | throw new IllegalArgumentException("listener must not be null"); |
| 366 | } |
| 367 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 368 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 369 | int callingPid = Binder.getCallingPid(); |
| 370 | if (mCallbacks.get(callingPid) != null) { |
| 371 | throw new SecurityException("The calling process has already " |
| 372 | + "registered an IDisplayManagerCallback."); |
Jeff Brown | 64a55af | 2012-08-26 02:47:39 -0700 | [diff] [blame] | 373 | } |
| 374 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 375 | CallbackRecord record = new CallbackRecord(callingPid, callback); |
| 376 | try { |
| 377 | IBinder binder = callback.asBinder(); |
| 378 | binder.linkToDeath(record, 0); |
| 379 | } catch (RemoteException ex) { |
| 380 | // give up |
| 381 | throw new RuntimeException(ex); |
| 382 | } |
| 383 | |
| 384 | mCallbacks.put(callingPid, record); |
| 385 | } |
| 386 | } |
| 387 | |
| 388 | private void onCallbackDied(int pid) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 389 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 390 | mCallbacks.remove(pid); |
| 391 | } |
| 392 | } |
| 393 | |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 394 | @Override // Binder call |
| 395 | public void scanWifiDisplays() { |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 396 | final long token = Binder.clearCallingIdentity(); |
| 397 | try { |
| 398 | synchronized (mSyncRoot) { |
Jeff Brown | 21c7153 | 2012-09-09 13:26:55 -0700 | [diff] [blame] | 399 | if (mWifiDisplayAdapter != null) { |
| 400 | mWifiDisplayAdapter.requestScanLocked(); |
| 401 | } |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 402 | } |
| 403 | } finally { |
| 404 | Binder.restoreCallingIdentity(token); |
| 405 | } |
| 406 | } |
| 407 | |
| 408 | @Override // Binder call |
| 409 | public void connectWifiDisplay(String address) { |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 410 | if (address == null) { |
| 411 | throw new IllegalArgumentException("address must not be null"); |
| 412 | } |
| 413 | |
Jeff Brown | bc33545 | 2012-09-26 18:34:47 -0700 | [diff] [blame] | 414 | final boolean trusted = canCallerConfigureWifiDisplay(); |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 415 | final long token = Binder.clearCallingIdentity(); |
| 416 | try { |
| 417 | synchronized (mSyncRoot) { |
Jeff Brown | 21c7153 | 2012-09-09 13:26:55 -0700 | [diff] [blame] | 418 | if (mWifiDisplayAdapter != null) { |
Jeff Brown | bc33545 | 2012-09-26 18:34:47 -0700 | [diff] [blame] | 419 | mWifiDisplayAdapter.requestConnectLocked(address, trusted); |
Jeff Brown | 21c7153 | 2012-09-09 13:26:55 -0700 | [diff] [blame] | 420 | } |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 421 | } |
| 422 | } finally { |
| 423 | Binder.restoreCallingIdentity(token); |
| 424 | } |
| 425 | } |
| 426 | |
| 427 | @Override // Binder call |
| 428 | public void disconnectWifiDisplay() { |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 429 | final long token = Binder.clearCallingIdentity(); |
| 430 | try { |
| 431 | synchronized (mSyncRoot) { |
Jeff Brown | 21c7153 | 2012-09-09 13:26:55 -0700 | [diff] [blame] | 432 | if (mWifiDisplayAdapter != null) { |
| 433 | mWifiDisplayAdapter.requestDisconnectLocked(); |
| 434 | } |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 435 | } |
| 436 | } finally { |
| 437 | Binder.restoreCallingIdentity(token); |
| 438 | } |
| 439 | } |
| 440 | |
| 441 | @Override // Binder call |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 442 | public void renameWifiDisplay(String address, String alias) { |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 443 | if (address == null) { |
| 444 | throw new IllegalArgumentException("address must not be null"); |
| 445 | } |
Jeff Brown | bc33545 | 2012-09-26 18:34:47 -0700 | [diff] [blame] | 446 | if (!canCallerConfigureWifiDisplay()) { |
| 447 | throw new SecurityException("Requires CONFIGURE_WIFI_DISPLAY permission to " |
| 448 | + "rename a wifi display."); |
| 449 | } |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 450 | |
| 451 | final long token = Binder.clearCallingIdentity(); |
| 452 | try { |
| 453 | synchronized (mSyncRoot) { |
| 454 | if (mWifiDisplayAdapter != null) { |
| 455 | mWifiDisplayAdapter.requestRenameLocked(address, alias); |
| 456 | } |
| 457 | } |
| 458 | } finally { |
| 459 | Binder.restoreCallingIdentity(token); |
| 460 | } |
| 461 | } |
| 462 | |
| 463 | @Override // Binder call |
| 464 | public void forgetWifiDisplay(String address) { |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 465 | if (address == null) { |
| 466 | throw new IllegalArgumentException("address must not be null"); |
| 467 | } |
Jeff Brown | bc33545 | 2012-09-26 18:34:47 -0700 | [diff] [blame] | 468 | if (!canCallerConfigureWifiDisplay()) { |
| 469 | throw new SecurityException("Requires CONFIGURE_WIFI_DISPLAY permission to " |
| 470 | + "forget a wifi display."); |
| 471 | } |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 472 | |
| 473 | final long token = Binder.clearCallingIdentity(); |
| 474 | try { |
| 475 | synchronized (mSyncRoot) { |
| 476 | if (mWifiDisplayAdapter != null) { |
| 477 | mWifiDisplayAdapter.requestForgetLocked(address); |
| 478 | } |
| 479 | } |
| 480 | } finally { |
| 481 | Binder.restoreCallingIdentity(token); |
| 482 | } |
| 483 | } |
| 484 | |
| 485 | @Override // Binder call |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 486 | public WifiDisplayStatus getWifiDisplayStatus() { |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 487 | final long token = Binder.clearCallingIdentity(); |
| 488 | try { |
| 489 | synchronized (mSyncRoot) { |
Jeff Brown | 21c7153 | 2012-09-09 13:26:55 -0700 | [diff] [blame] | 490 | if (mWifiDisplayAdapter != null) { |
| 491 | return mWifiDisplayAdapter.getWifiDisplayStatusLocked(); |
| 492 | } else { |
| 493 | return new WifiDisplayStatus(); |
| 494 | } |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 495 | } |
| 496 | } finally { |
| 497 | Binder.restoreCallingIdentity(token); |
| 498 | } |
| 499 | } |
| 500 | |
Jeff Brown | bc33545 | 2012-09-26 18:34:47 -0700 | [diff] [blame] | 501 | private boolean canCallerConfigureWifiDisplay() { |
| 502 | return mContext.checkCallingPermission(android.Manifest.permission.CONFIGURE_WIFI_DISPLAY) |
| 503 | == PackageManager.PERMISSION_GRANTED; |
| 504 | } |
| 505 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 506 | private void registerDefaultDisplayAdapter() { |
| 507 | // Register default display adapter. |
| 508 | synchronized (mSyncRoot) { |
| 509 | if (mHeadless) { |
| 510 | registerDisplayAdapterLocked(new HeadlessDisplayAdapter( |
| 511 | mSyncRoot, mContext, mHandler, mDisplayAdapterListener)); |
| 512 | } else { |
| 513 | registerDisplayAdapterLocked(new LocalDisplayAdapter( |
| 514 | mSyncRoot, mContext, mHandler, mDisplayAdapterListener)); |
| 515 | } |
| 516 | } |
| 517 | } |
| 518 | |
| 519 | private void registerAdditionalDisplayAdapters() { |
| 520 | synchronized (mSyncRoot) { |
| 521 | if (shouldRegisterNonEssentialDisplayAdaptersLocked()) { |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 522 | registerOverlayDisplayAdapterLocked(); |
| 523 | registerWifiDisplayAdapterLocked(); |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 524 | } |
| 525 | } |
| 526 | } |
| 527 | |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 528 | private void registerOverlayDisplayAdapterLocked() { |
| 529 | registerDisplayAdapterLocked(new OverlayDisplayAdapter( |
| 530 | mSyncRoot, mContext, mHandler, mDisplayAdapterListener, mUiHandler)); |
| 531 | } |
| 532 | |
| 533 | private void registerWifiDisplayAdapterLocked() { |
| 534 | if (mContext.getResources().getBoolean( |
Jeff Brown | bbd28a2 | 2012-09-20 16:47:15 -0700 | [diff] [blame] | 535 | com.android.internal.R.bool.config_enableWifiDisplay) |
| 536 | || SystemProperties.getInt(FORCE_WIFI_DISPLAY_ENABLE, -1) == 1) { |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 537 | mWifiDisplayAdapter = new WifiDisplayAdapter( |
| 538 | mSyncRoot, mContext, mHandler, mDisplayAdapterListener, |
| 539 | mPersistentDataStore); |
| 540 | registerDisplayAdapterLocked(mWifiDisplayAdapter); |
| 541 | } |
| 542 | } |
| 543 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 544 | private boolean shouldRegisterNonEssentialDisplayAdaptersLocked() { |
| 545 | // In safe mode, we disable non-essential display adapters to give the user |
| 546 | // an opportunity to fix broken settings or other problems that might affect |
| 547 | // system stability. |
| 548 | // In only-core mode, we disable non-essential display adapters to minimize |
| 549 | // the number of dependencies that are started while in this mode and to |
| 550 | // prevent problems that might occur due to the device being encrypted. |
| 551 | return !mSafeMode && !mOnlyCore; |
| 552 | } |
| 553 | |
| 554 | private void registerDisplayAdapterLocked(DisplayAdapter adapter) { |
| 555 | mDisplayAdapters.add(adapter); |
| 556 | adapter.registerLocked(); |
| 557 | } |
| 558 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 559 | private void handleDisplayDeviceAdded(DisplayDevice device) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 560 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 561 | if (mDisplayDevices.contains(device)) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 562 | Slog.w(TAG, "Attempted to add already added display device: " |
| 563 | + device.getDisplayDeviceInfoLocked()); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 564 | return; |
| 565 | } |
| 566 | |
Jeff Brown | e87bf03 | 2012-09-20 18:30:13 -0700 | [diff] [blame] | 567 | Slog.i(TAG, "Display device added: " + device.getDisplayDeviceInfoLocked()); |
| 568 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 569 | mDisplayDevices.add(device); |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 570 | addLogicalDisplayLocked(device); |
Craig Mautner | 65d11b3 | 2012-10-01 13:59:52 -0700 | [diff] [blame] | 571 | scheduleTraversalLocked(false); |
Jeff Brown | 9e316a1 | 2012-10-08 19:17:06 -0700 | [diff] [blame] | 572 | |
| 573 | // Blank or unblank the display immediately to match the state requested |
| 574 | // by the power manager (if known). |
| 575 | switch (mAllDisplayBlankStateFromPowerManager) { |
| 576 | case DISPLAY_BLANK_STATE_BLANKED: |
| 577 | device.blankLocked(); |
| 578 | break; |
| 579 | case DISPLAY_BLANK_STATE_UNBLANKED: |
| 580 | device.unblankLocked(); |
| 581 | break; |
| 582 | } |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 583 | } |
| 584 | } |
| 585 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 586 | private void handleDisplayDeviceChanged(DisplayDevice device) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 587 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 588 | if (!mDisplayDevices.contains(device)) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 589 | Slog.w(TAG, "Attempted to change non-existent display device: " |
| 590 | + device.getDisplayDeviceInfoLocked()); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 591 | return; |
| 592 | } |
| 593 | |
Jeff Brown | e87bf03 | 2012-09-20 18:30:13 -0700 | [diff] [blame] | 594 | Slog.i(TAG, "Display device changed: " + device.getDisplayDeviceInfoLocked()); |
| 595 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 596 | device.applyPendingDisplayDeviceInfoChangesLocked(); |
| 597 | if (updateLogicalDisplaysLocked()) { |
Craig Mautner | 65d11b3 | 2012-10-01 13:59:52 -0700 | [diff] [blame] | 598 | scheduleTraversalLocked(false); |
Jeff Brown | 64a55af | 2012-08-26 02:47:39 -0700 | [diff] [blame] | 599 | } |
| 600 | } |
| 601 | } |
| 602 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 603 | private void handleDisplayDeviceRemoved(DisplayDevice device) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 604 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 605 | if (!mDisplayDevices.remove(device)) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 606 | Slog.w(TAG, "Attempted to remove non-existent display device: " |
| 607 | + device.getDisplayDeviceInfoLocked()); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 608 | return; |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 609 | } |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 610 | |
Jeff Brown | e87bf03 | 2012-09-20 18:30:13 -0700 | [diff] [blame] | 611 | Slog.i(TAG, "Display device removed: " + device.getDisplayDeviceInfoLocked()); |
| 612 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 613 | mRemovedDisplayDevices.add(device); |
| 614 | updateLogicalDisplaysLocked(); |
Craig Mautner | 65d11b3 | 2012-10-01 13:59:52 -0700 | [diff] [blame] | 615 | scheduleTraversalLocked(false); |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 616 | } |
| 617 | } |
| 618 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 619 | // Adds a new logical display based on the given display device. |
| 620 | // Sends notifications if needed. |
| 621 | private void addLogicalDisplayLocked(DisplayDevice device) { |
| 622 | DisplayDeviceInfo deviceInfo = device.getDisplayDeviceInfoLocked(); |
| 623 | boolean isDefault = (deviceInfo.flags |
| 624 | & DisplayDeviceInfo.FLAG_DEFAULT_DISPLAY) != 0; |
| 625 | if (isDefault && mLogicalDisplays.get(Display.DEFAULT_DISPLAY) != null) { |
| 626 | Slog.w(TAG, "Ignoring attempt to add a second default display: " + deviceInfo); |
| 627 | isDefault = false; |
| 628 | } |
| 629 | |
| 630 | final int displayId = assignDisplayIdLocked(isDefault); |
| 631 | final int layerStack = assignLayerStackLocked(displayId); |
| 632 | |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 633 | LogicalDisplay display = new LogicalDisplay(displayId, layerStack, device); |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 634 | display.updateLocked(mDisplayDevices); |
| 635 | if (!display.isValidLocked()) { |
| 636 | // This should never happen currently. |
| 637 | Slog.w(TAG, "Ignoring display device because the logical display " |
| 638 | + "created from it was not considered valid: " + deviceInfo); |
| 639 | return; |
| 640 | } |
| 641 | |
| 642 | mLogicalDisplays.put(displayId, display); |
| 643 | |
| 644 | // Wake up waitForDefaultDisplay. |
| 645 | if (isDefault) { |
| 646 | mSyncRoot.notifyAll(); |
| 647 | } |
| 648 | |
| 649 | sendDisplayEventLocked(displayId, DisplayManagerGlobal.EVENT_DISPLAY_ADDED); |
| 650 | } |
| 651 | |
| 652 | private int assignDisplayIdLocked(boolean isDefault) { |
| 653 | return isDefault ? Display.DEFAULT_DISPLAY : mNextNonDefaultDisplayId++; |
| 654 | } |
| 655 | |
| 656 | private int assignLayerStackLocked(int displayId) { |
| 657 | // Currently layer stacks and display ids are the same. |
| 658 | // This need not be the case. |
| 659 | return displayId; |
| 660 | } |
| 661 | |
| 662 | // Updates all existing logical displays given the current set of display devices. |
| 663 | // Removes invalid logical displays. |
| 664 | // Sends notifications if needed. |
| 665 | private boolean updateLogicalDisplaysLocked() { |
| 666 | boolean changed = false; |
| 667 | for (int i = mLogicalDisplays.size(); i-- > 0; ) { |
| 668 | final int displayId = mLogicalDisplays.keyAt(i); |
| 669 | LogicalDisplay display = mLogicalDisplays.valueAt(i); |
| 670 | |
| 671 | mTempDisplayInfo.copyFrom(display.getDisplayInfoLocked()); |
| 672 | display.updateLocked(mDisplayDevices); |
| 673 | if (!display.isValidLocked()) { |
| 674 | mLogicalDisplays.removeAt(i); |
| 675 | sendDisplayEventLocked(displayId, DisplayManagerGlobal.EVENT_DISPLAY_REMOVED); |
| 676 | changed = true; |
| 677 | } else if (!mTempDisplayInfo.equals(display.getDisplayInfoLocked())) { |
| 678 | sendDisplayEventLocked(displayId, DisplayManagerGlobal.EVENT_DISPLAY_CHANGED); |
| 679 | changed = true; |
| 680 | } |
| 681 | } |
| 682 | return changed; |
| 683 | } |
| 684 | |
| 685 | private void performTraversalInTransactionLocked() { |
| 686 | // Perform one last traversal for each removed display device. |
| 687 | final int removedCount = mRemovedDisplayDevices.size(); |
| 688 | for (int i = 0; i < removedCount; i++) { |
| 689 | DisplayDevice device = mRemovedDisplayDevices.get(i); |
| 690 | device.performTraversalInTransactionLocked(); |
| 691 | } |
| 692 | mRemovedDisplayDevices.clear(); |
| 693 | |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 694 | // Clear all viewports before configuring displays so that we can keep |
| 695 | // track of which ones we have configured. |
| 696 | clearViewportsLocked(); |
| 697 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 698 | // Configure each display device. |
| 699 | final int count = mDisplayDevices.size(); |
| 700 | for (int i = 0; i < count; i++) { |
| 701 | DisplayDevice device = mDisplayDevices.get(i); |
| 702 | configureDisplayInTransactionLocked(device); |
| 703 | device.performTraversalInTransactionLocked(); |
| 704 | } |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 705 | |
| 706 | // Tell the input system about these new viewports. |
| 707 | if (mInputManagerFuncs != null) { |
| 708 | mHandler.sendEmptyMessage(MSG_UPDATE_VIEWPORT); |
| 709 | } |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 710 | } |
| 711 | |
Craig Mautner | 722285e | 2012-09-07 13:55:58 -0700 | [diff] [blame] | 712 | /** |
| 713 | * Tells the display manager whether there is interesting unique content on the |
| 714 | * specified logical display. This is used to control automatic mirroring. |
| 715 | * <p> |
| 716 | * If the display has unique content, then the display manager arranges for it |
| 717 | * to be presented on a physical display if appropriate. Otherwise, the display manager |
| 718 | * may choose to make the physical display mirror some other logical display. |
| 719 | * </p> |
| 720 | * |
| 721 | * @param displayId The logical display id to update. |
| 722 | * @param hasContent True if the logical display has content. |
Craig Mautner | 65d11b3 | 2012-10-01 13:59:52 -0700 | [diff] [blame] | 723 | * @param inTraversal True if called from WindowManagerService during a window traversal prior |
| 724 | * to call to performTraversalInTransactionFromWindowManager. |
Craig Mautner | 722285e | 2012-09-07 13:55:58 -0700 | [diff] [blame] | 725 | */ |
Craig Mautner | 65d11b3 | 2012-10-01 13:59:52 -0700 | [diff] [blame] | 726 | public void setDisplayHasContent(int displayId, boolean hasContent, boolean inTraversal) { |
Craig Mautner | 722285e | 2012-09-07 13:55:58 -0700 | [diff] [blame] | 727 | synchronized (mSyncRoot) { |
| 728 | LogicalDisplay display = mLogicalDisplays.get(displayId); |
| 729 | if (display != null && display.hasContentLocked() != hasContent) { |
| 730 | display.setHasContentLocked(hasContent); |
Craig Mautner | 65d11b3 | 2012-10-01 13:59:52 -0700 | [diff] [blame] | 731 | scheduleTraversalLocked(inTraversal); |
Craig Mautner | 722285e | 2012-09-07 13:55:58 -0700 | [diff] [blame] | 732 | } |
| 733 | } |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 734 | } |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 735 | |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 736 | private void clearViewportsLocked() { |
| 737 | mDefaultViewport.valid = false; |
| 738 | mExternalTouchViewport.valid = false; |
Craig Mautner | 722285e | 2012-09-07 13:55:58 -0700 | [diff] [blame] | 739 | } |
| 740 | |
| 741 | private void configureDisplayInTransactionLocked(DisplayDevice device) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 742 | // Find the logical display that the display device is showing. |
Craig Mautner | 722285e | 2012-09-07 13:55:58 -0700 | [diff] [blame] | 743 | LogicalDisplay display = findLogicalDisplayForDeviceLocked(device); |
| 744 | if (display != null && !display.hasContentLocked()) { |
| 745 | display = null; |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 746 | } |
| 747 | if (display == null) { |
| 748 | display = mLogicalDisplays.get(Display.DEFAULT_DISPLAY); |
| 749 | } |
| 750 | |
| 751 | // Apply the logical display configuration to the display device. |
| 752 | if (display == null) { |
| 753 | // TODO: no logical display for the device, blank it |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 754 | Slog.w(TAG, "Missing logical display to use for physical display device: " |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 755 | + device.getDisplayDeviceInfoLocked()); |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 756 | return; |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 757 | } else { |
| 758 | display.configureDisplayInTransactionLocked(device); |
| 759 | } |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 760 | |
| 761 | // Update the viewports if needed. |
| 762 | DisplayDeviceInfo info = device.getDisplayDeviceInfoLocked(); |
| 763 | if (!mDefaultViewport.valid |
| 764 | && (info.flags & DisplayDeviceInfo.FLAG_DEFAULT_DISPLAY) != 0) { |
| 765 | setViewportLocked(mDefaultViewport, display, device); |
| 766 | } |
| 767 | if (!mExternalTouchViewport.valid |
| 768 | && info.touch == DisplayDeviceInfo.TOUCH_EXTERNAL) { |
| 769 | setViewportLocked(mExternalTouchViewport, display, device); |
| 770 | } |
| 771 | } |
| 772 | |
| 773 | private static void setViewportLocked(DisplayViewport viewport, |
| 774 | LogicalDisplay display, DisplayDevice device) { |
| 775 | viewport.valid = true; |
| 776 | viewport.displayId = display.getDisplayIdLocked(); |
| 777 | device.populateViewportLocked(viewport); |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 778 | } |
| 779 | |
| 780 | private LogicalDisplay findLogicalDisplayForDeviceLocked(DisplayDevice device) { |
| 781 | final int count = mLogicalDisplays.size(); |
| 782 | for (int i = 0; i < count; i++) { |
| 783 | LogicalDisplay display = mLogicalDisplays.valueAt(i); |
| 784 | if (display.getPrimaryDisplayDeviceLocked() == device) { |
| 785 | return display; |
| 786 | } |
| 787 | } |
| 788 | return null; |
| 789 | } |
| 790 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 791 | private void sendDisplayEventLocked(int displayId, int event) { |
| 792 | Message msg = mHandler.obtainMessage(MSG_DELIVER_DISPLAY_EVENT, displayId, event); |
| 793 | mHandler.sendMessage(msg); |
| 794 | } |
| 795 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 796 | // Requests that performTraversalsInTransactionFromWindowManager be called at a |
| 797 | // later time to apply changes to surfaces and displays. |
Craig Mautner | 65d11b3 | 2012-10-01 13:59:52 -0700 | [diff] [blame] | 798 | private void scheduleTraversalLocked(boolean inTraversal) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 799 | if (!mPendingTraversal && mWindowManagerFuncs != null) { |
| 800 | mPendingTraversal = true; |
Craig Mautner | 65d11b3 | 2012-10-01 13:59:52 -0700 | [diff] [blame] | 801 | if (!inTraversal) { |
| 802 | mHandler.sendEmptyMessage(MSG_REQUEST_TRAVERSAL); |
| 803 | } |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 804 | } |
| 805 | } |
| 806 | |
| 807 | // Runs on Handler thread. |
| 808 | // Delivers display event notifications to callbacks. |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 809 | private void deliverDisplayEvent(int displayId, int event) { |
| 810 | if (DEBUG) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 811 | Slog.d(TAG, "Delivering display event: displayId=" |
| 812 | + displayId + ", event=" + event); |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 813 | } |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 814 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 815 | // Grab the lock and copy the callbacks. |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 816 | final int count; |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 817 | synchronized (mSyncRoot) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 818 | count = mCallbacks.size(); |
| 819 | mTempCallbacks.clear(); |
| 820 | for (int i = 0; i < count; i++) { |
| 821 | mTempCallbacks.add(mCallbacks.valueAt(i)); |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 822 | } |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 823 | } |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 824 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 825 | // After releasing the lock, send the notifications out. |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 826 | for (int i = 0; i < count; i++) { |
| 827 | mTempCallbacks.get(i).notifyDisplayEventAsync(displayId, event); |
| 828 | } |
| 829 | mTempCallbacks.clear(); |
Craig Mautner | 4f67ba6 | 2012-08-02 11:23:00 -0700 | [diff] [blame] | 830 | } |
| 831 | |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 832 | @Override // Binder call |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 833 | public void dump(FileDescriptor fd, final PrintWriter pw, String[] args) { |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 834 | if (mContext == null |
| 835 | || mContext.checkCallingOrSelfPermission(Manifest.permission.DUMP) |
| 836 | != PackageManager.PERMISSION_GRANTED) { |
| 837 | pw.println("Permission Denial: can't dump DisplayManager from from pid=" |
| 838 | + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()); |
| 839 | return; |
| 840 | } |
| 841 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 842 | pw.println("DISPLAY MANAGER (dumpsys display)"); |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 843 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 844 | synchronized (mSyncRoot) { |
Jeff Brown | 9e316a1 | 2012-10-08 19:17:06 -0700 | [diff] [blame] | 845 | pw.println(" mHeadless=" + mHeadless); |
| 846 | pw.println(" mOnlyCode=" + mOnlyCore); |
| 847 | pw.println(" mSafeMode=" + mSafeMode); |
| 848 | pw.println(" mPendingTraversal=" + mPendingTraversal); |
| 849 | pw.println(" mAllDisplayBlankStateFromPowerManager=" |
| 850 | + mAllDisplayBlankStateFromPowerManager); |
| 851 | pw.println(" mNextNonDefaultDisplayId=" + mNextNonDefaultDisplayId); |
| 852 | pw.println(" mDefaultViewport=" + mDefaultViewport); |
| 853 | pw.println(" mExternalTouchViewport=" + mExternalTouchViewport); |
| 854 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 855 | IndentingPrintWriter ipw = new IndentingPrintWriter(pw, " "); |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 856 | ipw.increaseIndent(); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 857 | |
| 858 | pw.println(); |
| 859 | pw.println("Display Adapters: size=" + mDisplayAdapters.size()); |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 860 | for (DisplayAdapter adapter : mDisplayAdapters) { |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 861 | pw.println(" " + adapter.getName()); |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 862 | adapter.dumpLocked(ipw); |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 863 | } |
Craig Mautner | 9de4936 | 2012-08-02 14:30:30 -0700 | [diff] [blame] | 864 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 865 | pw.println(); |
| 866 | pw.println("Display Devices: size=" + mDisplayDevices.size()); |
| 867 | for (DisplayDevice device : mDisplayDevices) { |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 868 | pw.println(" " + device.getDisplayDeviceInfoLocked()); |
| 869 | device.dumpLocked(ipw); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 870 | } |
| 871 | |
| 872 | final int logicalDisplayCount = mLogicalDisplays.size(); |
| 873 | pw.println(); |
| 874 | pw.println("Logical Displays: size=" + logicalDisplayCount); |
| 875 | for (int i = 0; i < logicalDisplayCount; i++) { |
| 876 | int displayId = mLogicalDisplays.keyAt(i); |
| 877 | LogicalDisplay display = mLogicalDisplays.valueAt(i); |
| 878 | pw.println(" Display " + displayId + ":"); |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 879 | display.dumpLocked(ipw); |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 880 | } |
| 881 | } |
| 882 | } |
| 883 | |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 884 | /** |
| 885 | * This is the object that everything in the display manager locks on. |
| 886 | * We make it an inner class within the {@link DisplayManagerService} to so that it is |
| 887 | * clear that the object belongs to the display manager service and that it is |
| 888 | * a unique object with a special purpose. |
| 889 | */ |
| 890 | public static final class SyncRoot { |
| 891 | } |
| 892 | |
| 893 | /** |
| 894 | * Private interface to the window manager. |
| 895 | */ |
| 896 | public interface WindowManagerFuncs { |
| 897 | /** |
Craig Mautner | 722285e | 2012-09-07 13:55:58 -0700 | [diff] [blame] | 898 | * Request that the window manager call |
| 899 | * {@link #performTraversalInTransactionFromWindowManager} within a surface |
| 900 | * transaction at a later time. |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 901 | */ |
| 902 | void requestTraversal(); |
| 903 | } |
| 904 | |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 905 | /** |
| 906 | * Private interface to the input manager. |
| 907 | */ |
| 908 | public interface InputManagerFuncs { |
| 909 | /** |
| 910 | * Sets information about the displays as needed by the input system. |
| 911 | * The input system should copy this information if required. |
| 912 | */ |
| 913 | void setDisplayViewports(DisplayViewport defaultViewport, |
| 914 | DisplayViewport externalTouchViewport); |
| 915 | } |
| 916 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 917 | private final class DisplayManagerHandler extends Handler { |
| 918 | public DisplayManagerHandler(Looper looper) { |
| 919 | super(looper, null, true /*async*/); |
Jeff Brown | 848c2dc | 2012-08-19 20:18:08 -0700 | [diff] [blame] | 920 | } |
Jeff Brown | bf5740e | 2012-08-19 23:20:02 -0700 | [diff] [blame] | 921 | |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 922 | @Override |
| 923 | public void handleMessage(Message msg) { |
| 924 | switch (msg.what) { |
| 925 | case MSG_REGISTER_DEFAULT_DISPLAY_ADAPTER: |
| 926 | registerDefaultDisplayAdapter(); |
| 927 | break; |
| 928 | |
| 929 | case MSG_REGISTER_ADDITIONAL_DISPLAY_ADAPTERS: |
| 930 | registerAdditionalDisplayAdapters(); |
| 931 | break; |
| 932 | |
| 933 | case MSG_DELIVER_DISPLAY_EVENT: |
| 934 | deliverDisplayEvent(msg.arg1, msg.arg2); |
| 935 | break; |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 936 | |
| 937 | case MSG_REQUEST_TRAVERSAL: |
| 938 | mWindowManagerFuncs.requestTraversal(); |
| 939 | break; |
Jeff Brown | d728bf5 | 2012-09-08 18:05:28 -0700 | [diff] [blame] | 940 | |
| 941 | case MSG_UPDATE_VIEWPORT: { |
| 942 | synchronized (mSyncRoot) { |
| 943 | mTempDefaultViewport.copyFrom(mDefaultViewport); |
| 944 | mTempExternalTouchViewport.copyFrom(mExternalTouchViewport); |
| 945 | } |
| 946 | mInputManagerFuncs.setDisplayViewports( |
| 947 | mTempDefaultViewport, mTempExternalTouchViewport); |
| 948 | break; |
| 949 | } |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 950 | } |
| 951 | } |
| 952 | } |
| 953 | |
| 954 | private final class DisplayAdapterListener implements DisplayAdapter.Listener { |
| 955 | @Override |
| 956 | public void onDisplayDeviceEvent(DisplayDevice device, int event) { |
| 957 | switch (event) { |
| 958 | case DisplayAdapter.DISPLAY_DEVICE_EVENT_ADDED: |
| 959 | handleDisplayDeviceAdded(device); |
| 960 | break; |
| 961 | |
| 962 | case DisplayAdapter.DISPLAY_DEVICE_EVENT_CHANGED: |
| 963 | handleDisplayDeviceChanged(device); |
| 964 | break; |
| 965 | |
| 966 | case DisplayAdapter.DISPLAY_DEVICE_EVENT_REMOVED: |
| 967 | handleDisplayDeviceRemoved(device); |
| 968 | break; |
| 969 | } |
| 970 | } |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 971 | |
| 972 | @Override |
| 973 | public void onTraversalRequested() { |
| 974 | synchronized (mSyncRoot) { |
Craig Mautner | 65d11b3 | 2012-10-01 13:59:52 -0700 | [diff] [blame] | 975 | scheduleTraversalLocked(false); |
Jeff Brown | 4ed8fe7 | 2012-08-30 18:18:29 -0700 | [diff] [blame] | 976 | } |
| 977 | } |
Jeff Brown | bd6e150 | 2012-08-28 03:27:37 -0700 | [diff] [blame] | 978 | } |
| 979 | |
| 980 | private final class CallbackRecord implements DeathRecipient { |
| 981 | private final int mPid; |
| 982 | private final IDisplayManagerCallback mCallback; |
| 983 | |
| 984 | public CallbackRecord(int pid, IDisplayManagerCallback callback) { |
| 985 | mPid = pid; |
| 986 | mCallback = callback; |
| 987 | } |
| 988 | |
| 989 | @Override |
| 990 | public void binderDied() { |
| 991 | if (DEBUG) { |
| 992 | Slog.d(TAG, "Display listener for pid " + mPid + " died."); |
| 993 | } |
| 994 | onCallbackDied(mPid); |
| 995 | } |
| 996 | |
| 997 | public void notifyDisplayEventAsync(int displayId, int event) { |
| 998 | try { |
| 999 | mCallback.onDisplayEvent(displayId, event); |
| 1000 | } catch (RemoteException ex) { |
| 1001 | Slog.w(TAG, "Failed to notify process " |
| 1002 | + mPid + " that displays changed, assuming it died.", ex); |
| 1003 | binderDied(); |
| 1004 | } |
| 1005 | } |
| 1006 | } |
Jeff Brown | fa25bf5 | 2012-07-23 19:26:30 -0700 | [diff] [blame] | 1007 | } |