DisplayContent.java revision 31f71705df97767b4b4ac7026228664995478fe0
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 17package com.android.server.wm; 18 19import static android.app.ActivityManager.StackId.DOCKED_STACK_ID; 20import static android.app.ActivityManager.StackId.HOME_STACK_ID; 21import static android.app.ActivityManager.StackId.PINNED_STACK_ID; 22import static android.view.WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE; 23import static android.view.WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE; 24import static android.view.WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL; 25import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_VISIBILITY; 26import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM; 27import static com.android.server.wm.WindowState.RESIZE_HANDLE_WIDTH_IN_DP; 28 29import android.app.ActivityManager.StackId; 30import android.graphics.Rect; 31import android.graphics.Region; 32import android.graphics.Region.Op; 33import android.util.DisplayMetrics; 34import android.util.Slog; 35import android.view.Display; 36import android.view.DisplayInfo; 37import android.view.Surface; 38 39import java.io.PrintWriter; 40import java.util.ArrayList; 41 42class DisplayContentList extends ArrayList<DisplayContent> { 43} 44 45/** 46 * Utility class for keeping track of the WindowStates and other pertinent contents of a 47 * particular Display. 48 * 49 * IMPORTANT: No method from this class should ever be used without holding 50 * WindowManagerService.mWindowMap. 51 */ 52class DisplayContent { 53 54 /** Unique identifier of this stack. */ 55 private final int mDisplayId; 56 57 /** Z-ordered (bottom-most first) list of all Window objects. Assigned to an element 58 * from mDisplayWindows; */ 59 private final WindowList mWindows = new WindowList(); 60 61 int mInitialDisplayWidth = 0; 62 int mInitialDisplayHeight = 0; 63 int mInitialDisplayDensity = 0; 64 int mBaseDisplayWidth = 0; 65 int mBaseDisplayHeight = 0; 66 int mBaseDisplayDensity = 0; 67 boolean mDisplayScalingDisabled; 68 private final DisplayInfo mDisplayInfo = new DisplayInfo(); 69 private final Display mDisplay; 70 private final DisplayMetrics mDisplayMetrics = new DisplayMetrics(); 71 72 Rect mBaseDisplayRect = new Rect(); 73 Rect mContentRect = new Rect(); 74 75 // Accessed directly by all users. 76 boolean layoutNeeded; 77 int pendingLayoutChanges; 78 final boolean isDefaultDisplay; 79 80 /** Window tokens that are in the process of exiting, but still on screen for animations. */ 81 final ArrayList<WindowToken> mExitingTokens = new ArrayList<>(); 82 83 /** Array containing all TaskStacks on this display. Array 84 * is stored in display order with the current bottom stack at 0. */ 85 private final ArrayList<TaskStack> mStacks = new ArrayList<>(); 86 87 /** A special TaskStack with id==HOME_STACK_ID that moves to the bottom whenever any TaskStack 88 * (except a future lockscreen TaskStack) moves to the top. */ 89 private TaskStack mHomeStack = null; 90 91 /** Detect user tapping outside of current focused task bounds .*/ 92 TaskTapPointerEventListener mTapDetector; 93 94 /** Detect user tapping outside of current focused stack bounds .*/ 95 Region mTouchExcludeRegion = new Region(); 96 97 /** Detect user tapping in a non-resizeable task in docked or fullscreen stack .*/ 98 Region mNonResizeableRegion = new Region(); 99 100 /** Save allocating when calculating rects */ 101 private final Rect mTmpRect = new Rect(); 102 private final Rect mTmpRect2 = new Rect(); 103 private final Region mTmpRegion = new Region(); 104 105 /** For gathering Task objects in order. */ 106 final ArrayList<Task> mTmpTaskHistory = new ArrayList<Task>(); 107 108 final WindowManagerService mService; 109 110 /** Remove this display when animation on it has completed. */ 111 boolean mDeferredRemoval; 112 113 final DockedStackDividerController mDividerControllerLocked; 114 115 final DimLayerController mDimLayerController; 116 117 final ArrayList<WindowState> mTapExcludedWindows = new ArrayList<>(); 118 119 /** 120 * @param display May not be null. 121 * @param service You know. 122 */ 123 DisplayContent(Display display, WindowManagerService service) { 124 mDisplay = display; 125 mDisplayId = display.getDisplayId(); 126 display.getDisplayInfo(mDisplayInfo); 127 display.getMetrics(mDisplayMetrics); 128 isDefaultDisplay = mDisplayId == Display.DEFAULT_DISPLAY; 129 mService = service; 130 initializeDisplayBaseInfo(); 131 mDividerControllerLocked = new DockedStackDividerController(service, this); 132 mDimLayerController = new DimLayerController(this); 133 } 134 135 int getDisplayId() { 136 return mDisplayId; 137 } 138 139 WindowList getWindowList() { 140 return mWindows; 141 } 142 143 Display getDisplay() { 144 return mDisplay; 145 } 146 147 DisplayInfo getDisplayInfo() { 148 return mDisplayInfo; 149 } 150 151 DisplayMetrics getDisplayMetrics() { 152 return mDisplayMetrics; 153 } 154 155 DockedStackDividerController getDockedDividerController() { 156 return mDividerControllerLocked; 157 } 158 159 /** 160 * Returns true if the specified UID has access to this display. 161 */ 162 public boolean hasAccess(int uid) { 163 return mDisplay.hasAccess(uid); 164 } 165 166 public boolean isPrivate() { 167 return (mDisplay.getFlags() & Display.FLAG_PRIVATE) != 0; 168 } 169 170 ArrayList<TaskStack> getStacks() { 171 return mStacks; 172 } 173 174 /** 175 * Retrieve the tasks on this display in stack order from the bottommost TaskStack up. 176 * @return All the Tasks, in order, on this display. 177 */ 178 ArrayList<Task> getTasks() { 179 mTmpTaskHistory.clear(); 180 final int numStacks = mStacks.size(); 181 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 182 mTmpTaskHistory.addAll(mStacks.get(stackNdx).getTasks()); 183 } 184 return mTmpTaskHistory; 185 } 186 187 TaskStack getHomeStack() { 188 if (mHomeStack == null && mDisplayId == Display.DEFAULT_DISPLAY) { 189 Slog.e(TAG_WM, "getHomeStack: Returning null from this=" + this); 190 } 191 return mHomeStack; 192 } 193 194 void updateDisplayInfo() { 195 mDisplay.getDisplayInfo(mDisplayInfo); 196 mDisplay.getMetrics(mDisplayMetrics); 197 for (int i = mStacks.size() - 1; i >= 0; --i) { 198 mStacks.get(i).updateDisplayInfo(null); 199 } 200 } 201 202 void initializeDisplayBaseInfo() { 203 // Bootstrap the default logical display from the display manager. 204 final DisplayInfo newDisplayInfo = 205 mService.mDisplayManagerInternal.getDisplayInfo(mDisplayId); 206 if (newDisplayInfo != null) { 207 mDisplayInfo.copyFrom(newDisplayInfo); 208 } 209 mBaseDisplayWidth = mInitialDisplayWidth = mDisplayInfo.logicalWidth; 210 mBaseDisplayHeight = mInitialDisplayHeight = mDisplayInfo.logicalHeight; 211 mBaseDisplayDensity = mInitialDisplayDensity = mDisplayInfo.logicalDensityDpi; 212 mBaseDisplayRect.set(0, 0, mBaseDisplayWidth, mBaseDisplayHeight); 213 } 214 215 void getLogicalDisplayRect(Rect out) { 216 // Uses same calculation as in LogicalDisplay#configureDisplayInTransactionLocked. 217 final int orientation = mDisplayInfo.rotation; 218 boolean rotated = (orientation == Surface.ROTATION_90 219 || orientation == Surface.ROTATION_270); 220 final int physWidth = rotated ? mBaseDisplayHeight : mBaseDisplayWidth; 221 final int physHeight = rotated ? mBaseDisplayWidth : mBaseDisplayHeight; 222 int width = mDisplayInfo.logicalWidth; 223 int left = (physWidth - width) / 2; 224 int height = mDisplayInfo.logicalHeight; 225 int top = (physHeight - height) / 2; 226 out.set(left, top, left + width, top + height); 227 } 228 229 void getContentRect(Rect out) { 230 out.set(mContentRect); 231 } 232 233 /** Refer to {@link WindowManagerService#attachStack(int, int, boolean)} */ 234 void attachStack(TaskStack stack, boolean onTop) { 235 if (stack.mStackId == HOME_STACK_ID) { 236 if (mHomeStack != null) { 237 throw new IllegalArgumentException("attachStack: HOME_STACK_ID (0) not first."); 238 } 239 mHomeStack = stack; 240 } 241 if (onTop) { 242 mStacks.add(stack); 243 } else { 244 mStacks.add(0, stack); 245 } 246 layoutNeeded = true; 247 } 248 249 void moveStack(TaskStack stack, boolean toTop) { 250 if (StackId.isAlwaysOnTop(stack.mStackId) && !toTop) { 251 // This stack is always-on-top silly... 252 Slog.w(TAG_WM, "Ignoring move of always-on-top stack=" + stack + " to bottom"); 253 return; 254 } 255 256 if (!mStacks.remove(stack)) { 257 Slog.wtf(TAG_WM, "moving stack that was not added: " + stack, new Throwable()); 258 } 259 260 int addIndex = toTop ? mStacks.size() : 0; 261 262 if (toTop 263 && mService.isStackVisibleLocked(PINNED_STACK_ID) 264 && stack.mStackId != PINNED_STACK_ID) { 265 // The pinned stack is always the top most stack (always-on-top) when it is visible. 266 // So, stack is moved just below the pinned stack. 267 addIndex--; 268 TaskStack topStack = mStacks.get(addIndex); 269 if (topStack.mStackId != PINNED_STACK_ID) { 270 throw new IllegalStateException("Pinned stack isn't top stack??? " + mStacks); 271 } 272 } 273 mStacks.add(addIndex, stack); 274 } 275 276 void detachStack(TaskStack stack) { 277 mDimLayerController.removeDimLayerUser(stack); 278 mStacks.remove(stack); 279 } 280 281 /** 282 * Propagate the new bounds to all child stacks. 283 * @param contentRect The bounds to apply at the top level. 284 */ 285 void resize(Rect contentRect) { 286 mContentRect.set(contentRect); 287 } 288 289 int taskIdFromPoint(int x, int y) { 290 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 291 TaskStack stack = mStacks.get(stackNdx); 292 stack.getBounds(mTmpRect); 293 if (!mTmpRect.contains(x, y) || stack.isAdjustedForMinimizedDockedStack()) { 294 continue; 295 } 296 final ArrayList<Task> tasks = stack.getTasks(); 297 for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { 298 final Task task = tasks.get(taskNdx); 299 final WindowState win = task.getTopVisibleAppMainWindow(); 300 if (win == null) { 301 continue; 302 } 303 // We need to use the task's dim bounds (which is derived from the visible 304 // bounds of its apps windows) for any touch-related tests. Can't use 305 // the task's original bounds because it might be adjusted to fit the 306 // content frame. For example, the presence of the IME adjusting the 307 // windows frames when the app window is the IME target. 308 task.getDimBounds(mTmpRect); 309 if (mTmpRect.contains(x, y)) { 310 return task.mTaskId; 311 } 312 } 313 } 314 return -1; 315 } 316 317 /** 318 * Find the task whose outside touch area (for resizing) (x, y) falls within. 319 * Returns null if the touch doesn't fall into a resizing area. 320 */ 321 Task findTaskForControlPoint(int x, int y) { 322 final int delta = mService.dipToPixel(RESIZE_HANDLE_WIDTH_IN_DP, mDisplayMetrics); 323 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 324 TaskStack stack = mStacks.get(stackNdx); 325 if (!StackId.isTaskResizeAllowed(stack.mStackId)) { 326 break; 327 } 328 final ArrayList<Task> tasks = stack.getTasks(); 329 for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { 330 final Task task = tasks.get(taskNdx); 331 if (task.isFullscreen()) { 332 return null; 333 } 334 335 // We need to use the task's dim bounds (which is derived from the visible 336 // bounds of its apps windows) for any touch-related tests. Can't use 337 // the task's original bounds because it might be adjusted to fit the 338 // content frame. One example is when the task is put to top-left quadrant, 339 // the actual visible area would not start at (0,0) after it's adjusted 340 // for the status bar. 341 task.getDimBounds(mTmpRect); 342 mTmpRect.inset(-delta, -delta); 343 if (mTmpRect.contains(x, y)) { 344 mTmpRect.inset(delta, delta); 345 if (!mTmpRect.contains(x, y)) { 346 return task; 347 } 348 // User touched inside the task. No need to look further, 349 // focus transfer will be handled in ACTION_UP. 350 return null; 351 } 352 } 353 } 354 return null; 355 } 356 357 void setTouchExcludeRegion(Task focusedTask) { 358 mTouchExcludeRegion.set(mBaseDisplayRect); 359 final int delta = mService.dipToPixel(RESIZE_HANDLE_WIDTH_IN_DP, mDisplayMetrics); 360 boolean addBackFocusedTask = false; 361 mNonResizeableRegion.setEmpty(); 362 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 363 TaskStack stack = mStacks.get(stackNdx); 364 final ArrayList<Task> tasks = stack.getTasks(); 365 for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { 366 final Task task = tasks.get(taskNdx); 367 AppWindowToken token = task.getTopVisibleAppToken(); 368 if (token == null || !token.isVisible()) { 369 continue; 370 } 371 372 /** 373 * Exclusion region is the region that TapDetector doesn't care about. 374 * Here we want to remove all non-focused tasks from the exclusion region. 375 * We also remove the outside touch area for resizing for all freeform 376 * tasks (including the focused). 377 * 378 * We save the focused task region once we find it, and add it back at the end. 379 */ 380 381 if (task == focusedTask) { 382 addBackFocusedTask = true; 383 mTmpRect2.set(mTmpRect); 384 } 385 386 final boolean isFreeformed = task.inFreeformWorkspace(); 387 if (task != focusedTask || isFreeformed) { 388 task.getDimBounds(mTmpRect); 389 if (isFreeformed) { 390 // If the task is freeformed, enlarge the area to account for outside 391 // touch area for resize. 392 mTmpRect.inset(-delta, -delta); 393 // Intersect with display content rect. If we have system decor (status bar/ 394 // navigation bar), we want to exclude that from the tap detection. 395 // Otherwise, if the app is partially placed under some system button (eg. 396 // Recents, Home), pressing that button would cause a full series of 397 // unwanted transfer focus/resume/pause, before we could go home. 398 mTmpRect.intersect(mContentRect); 399 } 400 mTouchExcludeRegion.op(mTmpRect, Region.Op.DIFFERENCE); 401 } 402 if (task.isTwoFingerScrollMode()) { 403 stack.getBounds(mTmpRect); 404 mNonResizeableRegion.op(mTmpRect, Region.Op.UNION); 405 break; 406 } 407 } 408 } 409 // If we removed the focused task above, add it back and only leave its 410 // outside touch area in the exclusion. TapDectector is not interested in 411 // any touch inside the focused task itself. 412 if (addBackFocusedTask) { 413 mTouchExcludeRegion.op(mTmpRect2, Region.Op.UNION); 414 } 415 final WindowState inputMethod = mService.mInputMethodWindow; 416 if (inputMethod != null && inputMethod.isVisibleLw()) { 417 // If the input method is visible and the user is typing, we don't want these touch 418 // events to be intercepted and used to change focus. This would likely cause a 419 // disappearance of the input method. 420 inputMethod.getTouchableRegion(mTmpRegion); 421 mTouchExcludeRegion.op(mTmpRegion, Region.Op.UNION); 422 } 423 for (int i = mTapExcludedWindows.size() - 1; i >= 0; i--) { 424 WindowState win = mTapExcludedWindows.get(i); 425 win.getTouchableRegion(mTmpRegion); 426 mTouchExcludeRegion.op(mTmpRegion, Region.Op.UNION); 427 } 428 if (getDockedStackVisibleForUserLocked() != null) { 429 mDividerControllerLocked.getTouchRegion(mTmpRect); 430 mTmpRegion.set(mTmpRect); 431 mTouchExcludeRegion.op(mTmpRegion, Op.UNION); 432 } 433 if (mTapDetector != null) { 434 mTapDetector.setTouchExcludeRegion(mTouchExcludeRegion, mNonResizeableRegion); 435 } 436 } 437 438 void switchUserStacks() { 439 final WindowList windows = getWindowList(); 440 for (int i = 0; i < windows.size(); i++) { 441 final WindowState win = windows.get(i); 442 if (win.isHiddenFromUserLocked()) { 443 if (DEBUG_VISIBILITY) Slog.w(TAG_WM, "user changing, hiding " + win 444 + ", attrs=" + win.mAttrs.type + ", belonging to " + win.mOwnerUid); 445 win.hideLw(false); 446 } 447 } 448 449 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 450 mStacks.get(stackNdx).switchUser(); 451 } 452 } 453 454 void resetAnimationBackgroundAnimator() { 455 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 456 mStacks.get(stackNdx).resetAnimationBackgroundAnimator(); 457 } 458 } 459 460 boolean animateDimLayers() { 461 return mDimLayerController.animateDimLayers(); 462 } 463 464 void resetDimming() { 465 mDimLayerController.resetDimming(); 466 } 467 468 boolean isDimming() { 469 return mDimLayerController.isDimming(); 470 } 471 472 void stopDimmingIfNeeded() { 473 mDimLayerController.stopDimmingIfNeeded(); 474 } 475 476 void close() { 477 mDimLayerController.close(); 478 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 479 mStacks.get(stackNdx).close(); 480 } 481 } 482 483 boolean isAnimating() { 484 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 485 final TaskStack stack = mStacks.get(stackNdx); 486 if (stack.isAnimating()) { 487 return true; 488 } 489 } 490 return false; 491 } 492 493 void checkForDeferredActions() { 494 boolean animating = false; 495 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 496 final TaskStack stack = mStacks.get(stackNdx); 497 if (stack.isAnimating()) { 498 animating = true; 499 } else { 500 if (stack.mDeferDetach) { 501 mService.detachStackLocked(this, stack); 502 } 503 final ArrayList<Task> tasks = stack.getTasks(); 504 for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { 505 final Task task = tasks.get(taskNdx); 506 AppTokenList tokens = task.mAppTokens; 507 for (int tokenNdx = tokens.size() - 1; tokenNdx >= 0; --tokenNdx) { 508 AppWindowToken wtoken = tokens.get(tokenNdx); 509 if (wtoken.mIsExiting) { 510 wtoken.removeAppFromTaskLocked(); 511 } 512 } 513 } 514 } 515 } 516 if (!animating && mDeferredRemoval) { 517 mService.onDisplayRemoved(mDisplayId); 518 } 519 } 520 521 void rotateBounds(int oldRotation, int newRotation, Rect bounds) { 522 final int rotationDelta = DisplayContent.deltaRotation(oldRotation, newRotation); 523 getLogicalDisplayRect(mTmpRect); 524 switch (rotationDelta) { 525 case Surface.ROTATION_0: 526 mTmpRect2.set(bounds); 527 break; 528 case Surface.ROTATION_90: 529 mTmpRect2.top = mTmpRect.bottom - bounds.right; 530 mTmpRect2.left = bounds.top; 531 mTmpRect2.right = mTmpRect2.left + bounds.height(); 532 mTmpRect2.bottom = mTmpRect2.top + bounds.width(); 533 break; 534 case Surface.ROTATION_180: 535 mTmpRect2.top = mTmpRect.bottom - bounds.bottom; 536 mTmpRect2.left = mTmpRect.right - bounds.right; 537 mTmpRect2.right = mTmpRect2.left + bounds.width(); 538 mTmpRect2.bottom = mTmpRect2.top + bounds.height(); 539 break; 540 case Surface.ROTATION_270: 541 mTmpRect2.top = bounds.left; 542 mTmpRect2.left = mTmpRect.right - bounds.bottom; 543 mTmpRect2.right = mTmpRect2.left + bounds.height(); 544 mTmpRect2.bottom = mTmpRect2.top + bounds.width(); 545 break; 546 } 547 bounds.set(mTmpRect2); 548 } 549 550 static int deltaRotation(int oldRotation, int newRotation) { 551 int delta = newRotation - oldRotation; 552 if (delta < 0) delta += 4; 553 return delta; 554 } 555 556 public void dump(String prefix, PrintWriter pw) { 557 pw.print(prefix); pw.print("Display: mDisplayId="); pw.println(mDisplayId); 558 final String subPrefix = " " + prefix; 559 pw.print(subPrefix); pw.print("init="); pw.print(mInitialDisplayWidth); pw.print("x"); 560 pw.print(mInitialDisplayHeight); pw.print(" "); pw.print(mInitialDisplayDensity); 561 pw.print("dpi"); 562 if (mInitialDisplayWidth != mBaseDisplayWidth 563 || mInitialDisplayHeight != mBaseDisplayHeight 564 || mInitialDisplayDensity != mBaseDisplayDensity) { 565 pw.print(" base="); 566 pw.print(mBaseDisplayWidth); pw.print("x"); pw.print(mBaseDisplayHeight); 567 pw.print(" "); pw.print(mBaseDisplayDensity); pw.print("dpi"); 568 } 569 if (mDisplayScalingDisabled) { 570 pw.println(" noscale"); 571 } 572 pw.print(" cur="); 573 pw.print(mDisplayInfo.logicalWidth); 574 pw.print("x"); pw.print(mDisplayInfo.logicalHeight); 575 pw.print(" app="); 576 pw.print(mDisplayInfo.appWidth); 577 pw.print("x"); pw.print(mDisplayInfo.appHeight); 578 pw.print(" rng="); pw.print(mDisplayInfo.smallestNominalAppWidth); 579 pw.print("x"); pw.print(mDisplayInfo.smallestNominalAppHeight); 580 pw.print("-"); pw.print(mDisplayInfo.largestNominalAppWidth); 581 pw.print("x"); pw.println(mDisplayInfo.largestNominalAppHeight); 582 pw.print(subPrefix); pw.print("deferred="); pw.print(mDeferredRemoval); 583 pw.print(" layoutNeeded="); pw.println(layoutNeeded); 584 585 pw.println(); 586 pw.println(" Application tokens in top down Z order:"); 587 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 588 final TaskStack stack = mStacks.get(stackNdx); 589 stack.dump(prefix + " ", pw); 590 } 591 592 pw.println(); 593 if (!mExitingTokens.isEmpty()) { 594 pw.println(); 595 pw.println(" Exiting tokens:"); 596 for (int i = mExitingTokens.size() - 1; i >= 0; i--) { 597 WindowToken token = mExitingTokens.get(i); 598 pw.print(" Exiting #"); pw.print(i); 599 pw.print(' '); pw.print(token); 600 pw.println(':'); 601 token.dump(pw, " "); 602 } 603 } 604 pw.println(); 605 mDimLayerController.dump(prefix + " ", pw); 606 pw.println(); 607 mDividerControllerLocked.dump(prefix + " ", pw); 608 } 609 610 @Override 611 public String toString() { 612 return "Display " + mDisplayId + " info=" + mDisplayInfo + " stacks=" + mStacks; 613 } 614 615 /** 616 * @return The docked stack, but only if it is visible, and {@code null} otherwise. 617 */ 618 TaskStack getDockedStackLocked() { 619 final TaskStack stack = mService.mStackIdToStack.get(DOCKED_STACK_ID); 620 return (stack != null && stack.isVisibleLocked()) ? stack : null; 621 } 622 623 /** 624 * Like {@link #getDockedStackLocked}, but also returns the docked stack if it's currently not 625 * visible, as long as it's not hidden because the current user doesn't have any tasks there. 626 */ 627 TaskStack getDockedStackVisibleForUserLocked() { 628 final TaskStack stack = mService.mStackIdToStack.get(DOCKED_STACK_ID); 629 return (stack != null && stack.isVisibleForUserLocked()) ? stack : null; 630 } 631 632 /** 633 * Find the visible, touch-deliverable window under the given point 634 */ 635 WindowState getTouchableWinAtPointLocked(float xf, float yf) { 636 WindowState touchedWin = null; 637 final int x = (int) xf; 638 final int y = (int) yf; 639 640 for (int i = mWindows.size() - 1; i >= 0; i--) { 641 WindowState window = mWindows.get(i); 642 final int flags = window.mAttrs.flags; 643 if (!window.isVisibleLw()) { 644 continue; 645 } 646 if ((flags & FLAG_NOT_TOUCHABLE) != 0) { 647 continue; 648 } 649 650 window.getVisibleBounds(mTmpRect); 651 if (!mTmpRect.contains(x, y)) { 652 continue; 653 } 654 655 window.getTouchableRegion(mTmpRegion); 656 657 final int touchFlags = flags & (FLAG_NOT_FOCUSABLE | FLAG_NOT_TOUCH_MODAL); 658 if (mTmpRegion.contains(x, y) || touchFlags == 0) { 659 touchedWin = window; 660 break; 661 } 662 } 663 664 return touchedWin; 665 } 666} 667