Wale Ogunwale | 568f9f41 | 2020-03-21 22:27:35 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2020 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.wm; |
| 18 | |
| 19 | import static android.Manifest.permission.MANAGE_ACTIVITY_STACKS; |
| 20 | |
| 21 | import static com.android.server.wm.ActivityStackSupervisor.PRESERVE_WINDOWS; |
| 22 | import static com.android.server.wm.Task.FLAG_FORCE_HIDDEN_FOR_TASK_ORG; |
| 23 | import static com.android.server.wm.WindowContainer.POSITION_BOTTOM; |
| 24 | import static com.android.server.wm.WindowContainer.POSITION_TOP; |
| 25 | |
| 26 | import android.app.WindowConfiguration; |
| 27 | import android.content.pm.ActivityInfo; |
| 28 | import android.content.res.Configuration; |
| 29 | import android.graphics.Rect; |
| 30 | import android.os.Binder; |
| 31 | import android.os.IBinder; |
| 32 | import android.os.RemoteException; |
| 33 | import android.util.ArraySet; |
| 34 | import android.util.Slog; |
| 35 | import android.view.SurfaceControl; |
Wale Ogunwale | dec3408 | 2020-03-22 09:45:00 -0700 | [diff] [blame^] | 36 | import android.window.IDisplayAreaOrganizerController; |
Wale Ogunwale | 568f9f41 | 2020-03-21 22:27:35 -0700 | [diff] [blame] | 37 | import android.window.ITaskOrganizerController; |
| 38 | import android.window.IWindowContainerTransactionCallback; |
| 39 | import android.window.IWindowOrganizerController; |
| 40 | import android.window.WindowContainerTransaction; |
| 41 | |
| 42 | import com.android.internal.util.function.pooled.PooledConsumer; |
| 43 | import com.android.internal.util.function.pooled.PooledLambda; |
| 44 | |
| 45 | import java.util.HashMap; |
| 46 | import java.util.Iterator; |
| 47 | import java.util.List; |
| 48 | import java.util.Map; |
| 49 | |
| 50 | /** |
| 51 | * Server side implementation for the interface for organizing windows |
| 52 | * @see android.window.WindowOrganizer |
| 53 | */ |
| 54 | class WindowOrganizerController extends IWindowOrganizerController.Stub |
| 55 | implements BLASTSyncEngine.TransactionReadyListener { |
| 56 | |
| 57 | private static final String TAG = "WindowOrganizerController"; |
| 58 | |
| 59 | /** Flag indicating that an applied transaction may have effected lifecycle */ |
| 60 | private static final int TRANSACT_EFFECTS_CLIENT_CONFIG = 1; |
| 61 | private static final int TRANSACT_EFFECTS_LIFECYCLE = 1 << 1; |
| 62 | |
| 63 | /** |
| 64 | * Masks specifying which configurations task-organizers can control. Incoming transactions |
| 65 | * will be filtered to only include these. |
| 66 | */ |
| 67 | static final int CONTROLLABLE_CONFIGS = ActivityInfo.CONFIG_WINDOW_CONFIGURATION |
| 68 | | ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE | ActivityInfo.CONFIG_SCREEN_SIZE; |
| 69 | static final int CONTROLLABLE_WINDOW_CONFIGS = WindowConfiguration.WINDOW_CONFIG_BOUNDS |
| 70 | | WindowConfiguration.WINDOW_CONFIG_APP_BOUNDS; |
| 71 | |
| 72 | private final ActivityTaskManagerService mService; |
| 73 | private final WindowManagerGlobalLock mGlobalLock; |
| 74 | |
| 75 | private final BLASTSyncEngine mBLASTSyncEngine = new BLASTSyncEngine(); |
| 76 | private final HashMap<Integer, IWindowContainerTransactionCallback> |
| 77 | mTransactionCallbacksByPendingSyncId = new HashMap(); |
| 78 | |
| 79 | final TaskOrganizerController mTaskOrganizerController; |
Wale Ogunwale | dec3408 | 2020-03-22 09:45:00 -0700 | [diff] [blame^] | 80 | final DisplayAreaOrganizerController mDisplayAreaOrganizerController; |
Wale Ogunwale | 568f9f41 | 2020-03-21 22:27:35 -0700 | [diff] [blame] | 81 | |
| 82 | WindowOrganizerController(ActivityTaskManagerService atm) { |
| 83 | mService = atm; |
| 84 | mGlobalLock = atm.mGlobalLock; |
| 85 | mTaskOrganizerController = new TaskOrganizerController(mService); |
Wale Ogunwale | dec3408 | 2020-03-22 09:45:00 -0700 | [diff] [blame^] | 86 | mDisplayAreaOrganizerController = new DisplayAreaOrganizerController(mService); |
Wale Ogunwale | 568f9f41 | 2020-03-21 22:27:35 -0700 | [diff] [blame] | 87 | } |
| 88 | |
| 89 | @Override |
| 90 | public void applyTransaction(WindowContainerTransaction t) { |
| 91 | applySyncTransaction(t, null /*callback*/); |
| 92 | } |
| 93 | |
| 94 | @Override |
| 95 | public int applySyncTransaction(WindowContainerTransaction t, |
| 96 | IWindowContainerTransactionCallback callback) { |
| 97 | enforceStackPermission("applySyncTransaction()"); |
| 98 | int syncId = -1; |
| 99 | if (t == null) { |
| 100 | throw new IllegalArgumentException( |
| 101 | "Null transaction passed to applySyncTransaction"); |
| 102 | } |
| 103 | long ident = Binder.clearCallingIdentity(); |
| 104 | try { |
| 105 | synchronized (mGlobalLock) { |
| 106 | int effects = 0; |
| 107 | |
| 108 | /** |
| 109 | * If callback is non-null we are looking to synchronize this transaction by |
| 110 | * collecting all the results in to a SurfaceFlinger transaction and then delivering |
| 111 | * that to the given transaction ready callback. See {@link BLASTSyncEngine} for the |
| 112 | * details of the operation. But at a high level we create a sync operation with a |
| 113 | * given ID and an associated callback. Then we notify each WindowContainer in this |
| 114 | * WindowContainer transaction that it is participating in a sync operation with |
| 115 | * that ID. Once everything is notified we tell the BLASTSyncEngine "setSyncReady" |
| 116 | * which means that we have added everything to the set. At any point after this, |
| 117 | * all the WindowContainers will eventually finish applying their changes and notify |
| 118 | * the BLASTSyncEngine which will deliver the Transaction to the callback. |
| 119 | */ |
| 120 | if (callback != null) { |
| 121 | syncId = startSyncWithOrganizer(callback); |
| 122 | } |
| 123 | mService.deferWindowLayout(); |
| 124 | try { |
| 125 | ArraySet<WindowContainer> haveConfigChanges = new ArraySet<>(); |
| 126 | Iterator<Map.Entry<IBinder, WindowContainerTransaction.Change>> entries = |
| 127 | t.getChanges().entrySet().iterator(); |
| 128 | while (entries.hasNext()) { |
| 129 | final Map.Entry<IBinder, WindowContainerTransaction.Change> entry = |
| 130 | entries.next(); |
| 131 | final WindowContainer wc = WindowContainer.fromBinder(entry.getKey()); |
| 132 | int containerEffect = applyWindowContainerChange(wc, entry.getValue()); |
| 133 | effects |= containerEffect; |
| 134 | |
| 135 | // Lifecycle changes will trigger ensureConfig for everything. |
| 136 | if ((effects & TRANSACT_EFFECTS_LIFECYCLE) == 0 |
| 137 | && (containerEffect & TRANSACT_EFFECTS_CLIENT_CONFIG) != 0) { |
| 138 | haveConfigChanges.add(wc); |
| 139 | } |
| 140 | if (syncId >= 0) { |
| 141 | mBLASTSyncEngine.addToSyncSet(syncId, wc); |
| 142 | } |
| 143 | } |
| 144 | // Hierarchy changes |
| 145 | final List<WindowContainerTransaction.HierarchyOp> hops = t.getHierarchyOps(); |
| 146 | for (int i = 0, n = hops.size(); i < n; ++i) { |
| 147 | final WindowContainerTransaction.HierarchyOp hop = hops.get(i); |
| 148 | final WindowContainer wc = WindowContainer.fromBinder(hop.getContainer()); |
| 149 | effects |= sanitizeAndApplyHierarchyOp(wc, hop); |
| 150 | } |
| 151 | if ((effects & TRANSACT_EFFECTS_LIFECYCLE) != 0) { |
| 152 | // Already calls ensureActivityConfig |
| 153 | mService.mRootWindowContainer.ensureActivitiesVisible( |
| 154 | null, 0, PRESERVE_WINDOWS); |
| 155 | } else if ((effects & TRANSACT_EFFECTS_CLIENT_CONFIG) != 0) { |
| 156 | final PooledConsumer f = PooledLambda.obtainConsumer( |
| 157 | ActivityRecord::ensureActivityConfiguration, |
| 158 | PooledLambda.__(ActivityRecord.class), 0, |
| 159 | false /* preserveWindow */); |
| 160 | try { |
| 161 | for (int i = haveConfigChanges.size() - 1; i >= 0; --i) { |
| 162 | final WindowContainer wc = haveConfigChanges.valueAt(i); |
| 163 | final Task task = wc.asTask(); |
| 164 | final TaskTile tile = task != null ? task.asTile() : null; |
| 165 | if (tile != null) { |
| 166 | // Special case for tile. Can't override normal forAllActivities |
| 167 | // because it generates duplicate calls and messes up existing |
| 168 | // code-paths. |
| 169 | tile.forAllTileActivities(f); |
| 170 | } else { |
| 171 | wc.forAllActivities(f); |
| 172 | } |
| 173 | } |
| 174 | } finally { |
| 175 | f.recycle(); |
| 176 | } |
| 177 | } |
| 178 | } finally { |
| 179 | mService.continueWindowLayout(); |
| 180 | if (syncId >= 0) { |
| 181 | setSyncReady(syncId); |
| 182 | } |
| 183 | } |
| 184 | } |
| 185 | } finally { |
| 186 | Binder.restoreCallingIdentity(ident); |
| 187 | } |
| 188 | return syncId; |
| 189 | } |
| 190 | |
| 191 | private int sanitizeAndApplyChange(WindowContainer container, |
| 192 | WindowContainerTransaction.Change change) { |
| 193 | if (!(container instanceof Task)) { |
| 194 | throw new RuntimeException("Invalid token in task transaction"); |
| 195 | } |
| 196 | final Task task = (Task) container; |
| 197 | // The "client"-facing API should prevent bad changes; however, just in case, sanitize |
| 198 | // masks here. |
| 199 | final int configMask = change.getConfigSetMask() & CONTROLLABLE_CONFIGS; |
| 200 | final int windowMask = change.getWindowSetMask() & CONTROLLABLE_WINDOW_CONFIGS; |
| 201 | int effects = 0; |
| 202 | if (configMask != 0) { |
| 203 | Configuration c = new Configuration(container.getRequestedOverrideConfiguration()); |
| 204 | c.setTo(change.getConfiguration(), configMask, windowMask); |
| 205 | container.onRequestedOverrideConfigurationChanged(c); |
| 206 | // TODO(b/145675353): remove the following once we could apply new bounds to the |
| 207 | // pinned stack together with its children. |
| 208 | resizePinnedStackIfNeeded(container, configMask, windowMask, c); |
| 209 | effects |= TRANSACT_EFFECTS_CLIENT_CONFIG; |
| 210 | } |
| 211 | if ((change.getChangeMask() & WindowContainerTransaction.Change.CHANGE_FOCUSABLE) != 0) { |
| 212 | if (container.setFocusable(change.getFocusable())) { |
| 213 | effects |= TRANSACT_EFFECTS_LIFECYCLE; |
| 214 | } |
| 215 | } |
| 216 | if ((change.getChangeMask() & WindowContainerTransaction.Change.CHANGE_HIDDEN) != 0) { |
| 217 | if (task.setForceHidden(FLAG_FORCE_HIDDEN_FOR_TASK_ORG, change.getHidden())) { |
| 218 | effects |= TRANSACT_EFFECTS_LIFECYCLE; |
| 219 | } |
| 220 | } |
| 221 | return effects; |
| 222 | } |
| 223 | |
| 224 | private int sanitizeAndApplyHierarchyOp(WindowContainer container, |
| 225 | WindowContainerTransaction.HierarchyOp hop) { |
| 226 | if (!(container instanceof Task)) { |
| 227 | throw new IllegalArgumentException("Invalid container in hierarchy op"); |
| 228 | } |
| 229 | if (container.getDisplayContent() == null) { |
| 230 | Slog.w(TAG, "Container is no longer attached: " + container); |
| 231 | return 0; |
| 232 | } |
| 233 | if (hop.isReparent()) { |
| 234 | // special case for tiles since they are "virtual" parents |
| 235 | if (container instanceof ActivityStack && ((ActivityStack) container).isRootTask()) { |
| 236 | ActivityStack as = (ActivityStack) container; |
| 237 | TaskTile newParent = hop.getNewParent() == null ? null |
| 238 | : (TaskTile) WindowContainer.fromBinder(hop.getNewParent()); |
| 239 | if (as.getTile() != newParent) { |
| 240 | if (as.getTile() != null) { |
| 241 | as.getTile().removeChild(as); |
| 242 | } |
| 243 | if (newParent != null) { |
| 244 | if (!as.affectedBySplitScreenResize()) { |
| 245 | return 0; |
| 246 | } |
| 247 | newParent.addChild(as, POSITION_TOP); |
| 248 | } |
| 249 | } |
| 250 | if (hop.getToTop()) { |
| 251 | as.getDisplay().positionStackAtTop(as, false /* includingParents */); |
| 252 | } else { |
| 253 | as.getDisplay().positionStackAtBottom(as); |
| 254 | } |
| 255 | } else if (container instanceof Task) { |
| 256 | throw new RuntimeException("Reparenting leaf Tasks is not supported now."); |
| 257 | } |
| 258 | } else { |
| 259 | // Ugh, of course ActivityStack has its own special reorder logic... |
| 260 | if (container instanceof ActivityStack && ((ActivityStack) container).isRootTask()) { |
| 261 | ActivityStack as = (ActivityStack) container; |
| 262 | if (hop.getToTop()) { |
| 263 | as.getDisplay().positionStackAtTop(as, false /* includingParents */); |
| 264 | } else { |
| 265 | as.getDisplay().positionStackAtBottom(as); |
| 266 | } |
| 267 | } else { |
| 268 | container.getParent().positionChildAt( |
| 269 | hop.getToTop() ? POSITION_TOP : POSITION_BOTTOM, |
| 270 | container, false /* includingParents */); |
| 271 | } |
| 272 | } |
| 273 | return TRANSACT_EFFECTS_LIFECYCLE; |
| 274 | } |
| 275 | |
| 276 | private int applyWindowContainerChange(WindowContainer wc, |
| 277 | WindowContainerTransaction.Change c) { |
| 278 | int effects = sanitizeAndApplyChange(wc, c); |
| 279 | |
| 280 | final Task tr = wc.asTask(); |
| 281 | |
| 282 | final SurfaceControl.Transaction t = c.getBoundsChangeTransaction(); |
| 283 | if (t != null) { |
| 284 | tr.setMainWindowSizeChangeTransaction(t); |
| 285 | } |
| 286 | |
| 287 | Rect enterPipBounds = c.getEnterPipBounds(); |
| 288 | if (enterPipBounds != null) { |
| 289 | mService.mStackSupervisor.updatePictureInPictureMode(tr, |
| 290 | enterPipBounds, true); |
| 291 | } |
| 292 | |
| 293 | final int windowingMode = c.getWindowingMode(); |
| 294 | if (windowingMode > -1) { |
| 295 | tr.setWindowingMode(windowingMode); |
| 296 | } |
| 297 | final int childWindowingMode = c.getActivityWindowingMode(); |
| 298 | if (childWindowingMode > -1) { |
| 299 | tr.setActivityWindowingMode(childWindowingMode); |
| 300 | } |
| 301 | |
| 302 | return effects; |
| 303 | } |
| 304 | |
| 305 | private void resizePinnedStackIfNeeded(ConfigurationContainer container, int configMask, |
| 306 | int windowMask, Configuration config) { |
| 307 | if ((container instanceof ActivityStack) |
| 308 | && ((configMask & ActivityInfo.CONFIG_WINDOW_CONFIGURATION) != 0) |
| 309 | && ((windowMask & WindowConfiguration.WINDOW_CONFIG_BOUNDS) != 0)) { |
| 310 | final ActivityStack stack = (ActivityStack) container; |
| 311 | if (stack.inPinnedWindowingMode()) { |
| 312 | stack.resize(config.windowConfiguration.getBounds(), |
| 313 | null /* configBounds */, PRESERVE_WINDOWS, true /* deferResume */); |
| 314 | } |
| 315 | } |
| 316 | } |
| 317 | |
| 318 | @Override |
| 319 | public ITaskOrganizerController getTaskOrganizerController() { |
| 320 | enforceStackPermission("getTaskOrganizerController()"); |
| 321 | return mTaskOrganizerController; |
| 322 | } |
| 323 | |
Wale Ogunwale | dec3408 | 2020-03-22 09:45:00 -0700 | [diff] [blame^] | 324 | @Override |
| 325 | public IDisplayAreaOrganizerController getDisplayAreaOrganizerController() { |
| 326 | enforceStackPermission("getDisplayAreaOrganizerController()"); |
| 327 | return mDisplayAreaOrganizerController; |
| 328 | } |
| 329 | |
Wale Ogunwale | 568f9f41 | 2020-03-21 22:27:35 -0700 | [diff] [blame] | 330 | int startSyncWithOrganizer(IWindowContainerTransactionCallback callback) { |
| 331 | int id = mBLASTSyncEngine.startSyncSet(this); |
| 332 | mTransactionCallbacksByPendingSyncId.put(id, callback); |
| 333 | return id; |
| 334 | } |
| 335 | |
| 336 | void setSyncReady(int id) { |
| 337 | mBLASTSyncEngine.setReady(id); |
| 338 | } |
| 339 | |
| 340 | @Override |
| 341 | public void transactionReady(int mSyncId, SurfaceControl.Transaction mergedTransaction) { |
| 342 | final IWindowContainerTransactionCallback callback = |
| 343 | mTransactionCallbacksByPendingSyncId.get(mSyncId); |
| 344 | |
| 345 | try { |
| 346 | callback.transactionReady(mSyncId, mergedTransaction); |
| 347 | } catch (RemoteException e) { |
| 348 | } |
| 349 | |
| 350 | mTransactionCallbacksByPendingSyncId.remove(mSyncId); |
| 351 | } |
| 352 | |
| 353 | private void enforceStackPermission(String func) { |
| 354 | mService.mAmInternal.enforceCallingPermission(MANAGE_ACTIVITY_STACKS, func); |
| 355 | } |
| 356 | } |