DisplayContent.java revision ddc1cb2c15549ed23dce9d416680a009fa6ae23c
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.HOME_STACK_ID; 20 21import static com.android.server.wm.WindowManagerService.DEBUG_VISIBILITY; 22import static com.android.server.wm.WindowManagerService.TAG; 23 24import android.graphics.Rect; 25import android.graphics.Region; 26import android.util.Slog; 27import android.view.Display; 28import android.view.DisplayInfo; 29import android.view.Surface; 30 31import java.io.PrintWriter; 32import java.util.ArrayList; 33 34class DisplayContentList extends ArrayList<DisplayContent> { 35} 36 37/** 38 * Utility class for keeping track of the WindowStates and other pertinent contents of a 39 * particular Display. 40 * 41 * IMPORTANT: No method from this class should ever be used without holding 42 * WindowManagerService.mWindowMap. 43 */ 44class DisplayContent { 45 46 /** Unique identifier of this stack. */ 47 private final int mDisplayId; 48 49 /** Z-ordered (bottom-most first) list of all Window objects. Assigned to an element 50 * from mDisplayWindows; */ 51 private final WindowList mWindows = new WindowList(); 52 53 // This protects the following display size properties, so that 54 // getDisplaySize() doesn't need to acquire the global lock. This is 55 // needed because the window manager sometimes needs to use ActivityThread 56 // while it has its global state locked (for example to load animation 57 // resources), but the ActivityThread also needs get the current display 58 // size sometimes when it has its package lock held. 59 // 60 // These will only be modified with both mWindowMap and mDisplaySizeLock 61 // held (in that order) so the window manager doesn't need to acquire this 62 // lock when needing these values in its normal operation. 63 final Object mDisplaySizeLock = new Object(); 64 int mInitialDisplayWidth = 0; 65 int mInitialDisplayHeight = 0; 66 int mInitialDisplayDensity = 0; 67 int mBaseDisplayWidth = 0; 68 int mBaseDisplayHeight = 0; 69 int mBaseDisplayDensity = 0; 70 boolean mDisplayScalingDisabled; 71 private final DisplayInfo mDisplayInfo = new DisplayInfo(); 72 private final Display mDisplay; 73 74 Rect mBaseDisplayRect = new Rect(); 75 Rect mContentRect = new Rect(); 76 77 // Accessed directly by all users. 78 boolean layoutNeeded; 79 int pendingLayoutChanges; 80 final boolean isDefaultDisplay; 81 82 /** Window tokens that are in the process of exiting, but still on screen for animations. */ 83 final ArrayList<WindowToken> mExitingTokens = new ArrayList<WindowToken>(); 84 85 /** Array containing all TaskStacks on this display. Array 86 * is stored in display order with the current bottom stack at 0. */ 87 private final ArrayList<TaskStack> mStacks = new ArrayList<TaskStack>(); 88 89 /** A special TaskStack with id==HOME_STACK_ID that moves to the bottom whenever any TaskStack 90 * (except a future lockscreen TaskStack) moves to the top. */ 91 private TaskStack mHomeStack = null; 92 93 /** Detect user tapping outside of current focused task bounds .*/ 94 TaskTapPointerEventListener mTapDetector; 95 96 /** Detect user tapping outside of current focused stack bounds .*/ 97 Region mTouchExcludeRegion = new Region(); 98 99 /** Save allocating when calculating rects */ 100 Rect mTmpRect = new Rect(); 101 102 /** For gathering Task objects in order. */ 103 final ArrayList<Task> mTmpTaskHistory = new ArrayList<Task>(); 104 105 final WindowManagerService mService; 106 107 /** Remove this display when animation on it has completed. */ 108 boolean mDeferredRemoval; 109 110 /** 111 * @param display May not be null. 112 * @param service You know. 113 */ 114 DisplayContent(Display display, WindowManagerService service) { 115 mDisplay = display; 116 mDisplayId = display.getDisplayId(); 117 display.getDisplayInfo(mDisplayInfo); 118 isDefaultDisplay = mDisplayId == Display.DEFAULT_DISPLAY; 119 mService = service; 120 } 121 122 int getDisplayId() { 123 return mDisplayId; 124 } 125 126 WindowList getWindowList() { 127 return mWindows; 128 } 129 130 Display getDisplay() { 131 return mDisplay; 132 } 133 134 DisplayInfo getDisplayInfo() { 135 return mDisplayInfo; 136 } 137 138 /** 139 * Returns true if the specified UID has access to this display. 140 */ 141 public boolean hasAccess(int uid) { 142 return mDisplay.hasAccess(uid); 143 } 144 145 public boolean isPrivate() { 146 return (mDisplay.getFlags() & Display.FLAG_PRIVATE) != 0; 147 } 148 149 ArrayList<TaskStack> getStacks() { 150 return mStacks; 151 } 152 153 /** 154 * Retrieve the tasks on this display in stack order from the bottommost TaskStack up. 155 * @return All the Tasks, in order, on this display. 156 */ 157 ArrayList<Task> getTasks() { 158 mTmpTaskHistory.clear(); 159 final int numStacks = mStacks.size(); 160 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 161 mTmpTaskHistory.addAll(mStacks.get(stackNdx).getTasks()); 162 } 163 return mTmpTaskHistory; 164 } 165 166 TaskStack getHomeStack() { 167 if (mHomeStack == null && mDisplayId == Display.DEFAULT_DISPLAY) { 168 Slog.e(TAG, "getHomeStack: Returning null from this=" + this); 169 } 170 return mHomeStack; 171 } 172 173 void updateDisplayInfo() { 174 mDisplay.getDisplayInfo(mDisplayInfo); 175 for (int i = mStacks.size() - 1; i >= 0; --i) { 176 mStacks.get(i).updateDisplayInfo(); 177 } 178 } 179 180 void getLogicalDisplayRect(Rect out) { 181 // Uses same calculation as in LogicalDisplay#configureDisplayInTransactionLocked. 182 final int orientation = mDisplayInfo.rotation; 183 boolean rotated = (orientation == Surface.ROTATION_90 184 || orientation == Surface.ROTATION_270); 185 final int physWidth = rotated ? mBaseDisplayHeight : mBaseDisplayWidth; 186 final int physHeight = rotated ? mBaseDisplayWidth : mBaseDisplayHeight; 187 int width = mDisplayInfo.logicalWidth; 188 int left = (physWidth - width) / 2; 189 int height = mDisplayInfo.logicalHeight; 190 int top = (physHeight - height) / 2; 191 out.set(left, top, left + width, top + height); 192 } 193 194 /** Refer to {@link WindowManagerService#attachStack(int, int, boolean)} */ 195 void attachStack(TaskStack stack, boolean onTop) { 196 if (stack.mStackId == HOME_STACK_ID) { 197 if (mHomeStack != null) { 198 throw new IllegalArgumentException("attachStack: HOME_STACK_ID (0) not first."); 199 } 200 mHomeStack = stack; 201 } 202 if (onTop) { 203 mStacks.add(stack); 204 } else { 205 mStacks.add(0, stack); 206 } 207 layoutNeeded = true; 208 } 209 210 void moveStack(TaskStack stack, boolean toTop) { 211 mStacks.remove(stack); 212 mStacks.add(toTop ? mStacks.size() : 0, stack); 213 } 214 215 void detachStack(TaskStack stack) { 216 mStacks.remove(stack); 217 } 218 219 /** 220 * Propagate the new bounds to all child stacks. 221 * @param contentRect The bounds to apply at the top level. 222 */ 223 void resize(Rect contentRect) { 224 mContentRect.set(contentRect); 225 } 226 227 int taskIdFromPoint(int x, int y) { 228 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 229 final ArrayList<Task> tasks = mStacks.get(stackNdx).getTasks(); 230 for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { 231 final Task task = tasks.get(taskNdx); 232 task.getBounds(mTmpRect); 233 if (mTmpRect.contains(x, y)) { 234 return task.mTaskId; 235 } 236 } 237 } 238 return -1; 239 } 240 241 void setTouchExcludeRegion(Task focusedTask) { 242 mTouchExcludeRegion.set(mBaseDisplayRect); 243 WindowList windows = getWindowList(); 244 for (int i = windows.size() - 1; i >= 0; --i) { 245 final WindowState win = windows.get(i); 246 final Task task = win.getTask(); 247 if (win.isVisibleLw() && task != null && task != focusedTask) { 248 mTmpRect.set(win.mVisibleFrame); 249 // If no intersection, we need mTmpRect to be unmodified. 250 mTmpRect.intersect(win.mVisibleInsets); 251 mTouchExcludeRegion.op(mTmpRect, Region.Op.DIFFERENCE); 252 } 253 } 254 if (mTapDetector != null) { 255 mTapDetector.setTouchExcludeRegion(mTouchExcludeRegion); 256 } 257 } 258 259 void switchUserStacks() { 260 final WindowList windows = getWindowList(); 261 for (int i = 0; i < windows.size(); i++) { 262 final WindowState win = windows.get(i); 263 if (win.isHiddenFromUserLocked()) { 264 if (DEBUG_VISIBILITY) Slog.w(TAG, "user changing, hiding " + win 265 + ", attrs=" + win.mAttrs.type + ", belonging to " + win.mOwnerUid); 266 win.hideLw(false); 267 } 268 } 269 270 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 271 mStacks.get(stackNdx).switchUser(); 272 } 273 } 274 275 void resetAnimationBackgroundAnimator() { 276 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 277 mStacks.get(stackNdx).resetAnimationBackgroundAnimator(); 278 } 279 } 280 281 boolean animateDimLayers() { 282 boolean result = false; 283 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 284 final ArrayList<Task> tasks = mStacks.get(stackNdx).getTasks(); 285 for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { 286 final Task task = tasks.get(taskNdx); 287 result |= task.animateDimLayers(); 288 if (task.isFullscreen()) { 289 // No point in continuing as this task covers the entire screen. 290 // Also, fullscreen tasks all share the same dim layer, so we don't want 291 // processing of fullscreen task below this one affecting the dim layer state. 292 return result; 293 } 294 } 295 } 296 return result; 297 } 298 299 void resetDimming() { 300 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 301 final ArrayList<Task> tasks = mStacks.get(stackNdx).getTasks(); 302 for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { 303 tasks.get(taskNdx).clearContinueDimming(); 304 } 305 } 306 } 307 308 boolean isDimming() { 309 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 310 final ArrayList<Task> tasks = mStacks.get(stackNdx).getTasks(); 311 for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { 312 if (tasks.get(taskNdx).isDimming()) { 313 return true; 314 } 315 } 316 } 317 return false; 318 } 319 320 void stopDimmingIfNeeded() { 321 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 322 final ArrayList<Task> tasks = mStacks.get(stackNdx).getTasks(); 323 for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { 324 tasks.get(taskNdx).stopDimmingIfNeeded(); 325 } 326 } 327 } 328 329 void close() { 330 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 331 mStacks.get(stackNdx).close(); 332 } 333 } 334 335 boolean isAnimating() { 336 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 337 final TaskStack stack = mStacks.get(stackNdx); 338 if (stack.isAnimating()) { 339 return true; 340 } 341 } 342 return false; 343 } 344 345 void checkForDeferredActions() { 346 boolean animating = false; 347 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 348 final TaskStack stack = mStacks.get(stackNdx); 349 if (stack.isAnimating()) { 350 animating = true; 351 } else { 352 if (stack.mDeferDetach) { 353 mService.detachStackLocked(this, stack); 354 } 355 final ArrayList<Task> tasks = stack.getTasks(); 356 for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { 357 final Task task = tasks.get(taskNdx); 358 AppTokenList tokens = task.mAppTokens; 359 for (int tokenNdx = tokens.size() - 1; tokenNdx >= 0; --tokenNdx) { 360 AppWindowToken wtoken = tokens.get(tokenNdx); 361 if (wtoken.mIsExiting) { 362 wtoken.removeAppFromTaskLocked(); 363 } 364 } 365 } 366 } 367 } 368 if (!animating && mDeferredRemoval) { 369 mService.onDisplayRemoved(mDisplayId); 370 } 371 } 372 373 static int deltaRotation(int oldRotation, int newRotation) { 374 int delta = newRotation - oldRotation; 375 if (delta < 0) delta += 4; 376 return delta; 377 } 378 379 public void dump(String prefix, PrintWriter pw) { 380 pw.print(prefix); pw.print("Display: mDisplayId="); pw.println(mDisplayId); 381 final String subPrefix = " " + prefix; 382 pw.print(subPrefix); pw.print("init="); pw.print(mInitialDisplayWidth); pw.print("x"); 383 pw.print(mInitialDisplayHeight); pw.print(" "); pw.print(mInitialDisplayDensity); 384 pw.print("dpi"); 385 if (mInitialDisplayWidth != mBaseDisplayWidth 386 || mInitialDisplayHeight != mBaseDisplayHeight 387 || mInitialDisplayDensity != mBaseDisplayDensity) { 388 pw.print(" base="); 389 pw.print(mBaseDisplayWidth); pw.print("x"); pw.print(mBaseDisplayHeight); 390 pw.print(" "); pw.print(mBaseDisplayDensity); pw.print("dpi"); 391 } 392 if (mDisplayScalingDisabled) { 393 pw.println(" noscale"); 394 } 395 pw.print(" cur="); 396 pw.print(mDisplayInfo.logicalWidth); 397 pw.print("x"); pw.print(mDisplayInfo.logicalHeight); 398 pw.print(" app="); 399 pw.print(mDisplayInfo.appWidth); 400 pw.print("x"); pw.print(mDisplayInfo.appHeight); 401 pw.print(" rng="); pw.print(mDisplayInfo.smallestNominalAppWidth); 402 pw.print("x"); pw.print(mDisplayInfo.smallestNominalAppHeight); 403 pw.print("-"); pw.print(mDisplayInfo.largestNominalAppWidth); 404 pw.print("x"); pw.println(mDisplayInfo.largestNominalAppHeight); 405 pw.print(subPrefix); pw.print("deferred="); pw.print(mDeferredRemoval); 406 pw.print(" layoutNeeded="); pw.println(layoutNeeded); 407 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 408 final TaskStack stack = mStacks.get(stackNdx); 409 pw.print(prefix); pw.print("mStacks[" + stackNdx + "]"); pw.println(stack.mStackId); 410 stack.dump(prefix + " ", pw); 411 } 412 pw.println(); 413 pw.println(" Application tokens in top down Z order:"); 414 int ndx = 0; 415 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 416 final TaskStack stack = mStacks.get(stackNdx); 417 pw.print(" mStackId="); pw.println(stack.mStackId); 418 ArrayList<Task> tasks = stack.getTasks(); 419 for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { 420 final Task task = tasks.get(taskNdx); 421 pw.print(" mTaskId="); pw.println(task.mTaskId); 422 AppTokenList tokens = task.mAppTokens; 423 for (int tokenNdx = tokens.size() - 1; tokenNdx >= 0; --tokenNdx, ++ndx) { 424 final AppWindowToken wtoken = tokens.get(tokenNdx); 425 pw.print(" Activity #"); pw.print(tokenNdx); 426 pw.print(' '); pw.print(wtoken); pw.println(":"); 427 wtoken.dump(pw, " "); 428 } 429 } 430 } 431 if (ndx == 0) { 432 pw.println(" None"); 433 } 434 pw.println(); 435 if (!mExitingTokens.isEmpty()) { 436 pw.println(); 437 pw.println(" Exiting tokens:"); 438 for (int i=mExitingTokens.size()-1; i>=0; i--) { 439 WindowToken token = mExitingTokens.get(i); 440 pw.print(" Exiting #"); pw.print(i); 441 pw.print(' '); pw.print(token); 442 pw.println(':'); 443 token.dump(pw, " "); 444 } 445 } 446 pw.println(); 447 } 448 449 @Override 450 public String toString() { 451 return "Display " + mDisplayId + " info=" + mDisplayInfo + " stacks=" + mStacks; 452 } 453} 454