DisplayContent.java revision e0a3884cb627efc650e19fbe76b1b3343468cf57
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 com.android.server.am.ActivityStackSupervisor.HOME_STACK_ID; 20import static com.android.server.wm.WindowManagerService.DEBUG_STACK; 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.EventLog; 27import android.util.Slog; 28import android.view.Display; 29import android.view.DisplayInfo; 30import android.view.Surface; 31import com.android.server.EventLogTags; 32 33import java.io.PrintWriter; 34import java.util.ArrayList; 35 36class DisplayContentList extends ArrayList<DisplayContent> { 37} 38 39/** 40 * Utility class for keeping track of the WindowStates and other pertinent contents of a 41 * particular Display. 42 * 43 * IMPORTANT: No method from this class should ever be used without holding 44 * WindowManagerService.mWindowMap. 45 */ 46class DisplayContent { 47 48 /** Unique identifier of this stack. */ 49 private final int mDisplayId; 50 51 /** Z-ordered (bottom-most first) list of all Window objects. Assigned to an element 52 * from mDisplayWindows; */ 53 private WindowList mWindows = new WindowList(); 54 55 // This protects the following display size properties, so that 56 // getDisplaySize() doesn't need to acquire the global lock. This is 57 // needed because the window manager sometimes needs to use ActivityThread 58 // while it has its global state locked (for example to load animation 59 // resources), but the ActivityThread also needs get the current display 60 // size sometimes when it has its package lock held. 61 // 62 // These will only be modified with both mWindowMap and mDisplaySizeLock 63 // held (in that order) so the window manager doesn't need to acquire this 64 // lock when needing these values in its normal operation. 65 final Object mDisplaySizeLock = new Object(); 66 int mInitialDisplayWidth = 0; 67 int mInitialDisplayHeight = 0; 68 int mInitialDisplayDensity = 0; 69 int mBaseDisplayWidth = 0; 70 int mBaseDisplayHeight = 0; 71 int mBaseDisplayDensity = 0; 72 private final DisplayInfo mDisplayInfo = new DisplayInfo(); 73 private final Display mDisplay; 74 75 Rect mBaseDisplayRect = new Rect(); 76 Rect mContentRect = new Rect(); 77 78 // Accessed directly by all users. 79 boolean layoutNeeded; 80 int pendingLayoutChanges; 81 final boolean isDefaultDisplay; 82 83 /** 84 * Window tokens that are in the process of exiting, but still 85 * on screen for animations. 86 */ 87 final ArrayList<WindowToken> mExitingTokens = new ArrayList<WindowToken>(); 88 89 /** 90 * Application tokens that are in the process of exiting, but still 91 * on screen for animations. 92 */ 93 final AppTokenList mExitingAppTokens = new AppTokenList(); 94 95 /** Array containing all TaskStacks on this display. Array 96 * is stored in display order with the current bottom stack at 0. */ 97 private ArrayList<TaskStack> mStacks = new ArrayList<TaskStack>(); 98 99 /** A special TaskStack with id==HOME_STACK_ID that moves to the bottom whenever any TaskStack 100 * (except a future lockscreen TaskStack) moves to the top. */ 101 private TaskStack mHomeStack = null; 102 103 /** Detect user tapping outside of current focused stack bounds .*/ 104 StackTapPointerEventListener mTapDetector; 105 106 /** Detect user tapping outside of current focused stack bounds .*/ 107 Region mTouchExcludeRegion = new Region(); 108 109 /** Save allocating when retrieving tasks */ 110 private ArrayList<Task> mTaskHistory = new ArrayList<Task>(); 111 112 /** Save allocating when calculating rects */ 113 Rect mTmpRect = new Rect(); 114 115 final WindowManagerService mService; 116 117 /** 118 * @param display May not be null. 119 * @param service TODO(cmautner): 120 */ 121 DisplayContent(Display display, WindowManagerService service) { 122 mDisplay = display; 123 mDisplayId = display.getDisplayId(); 124 display.getDisplayInfo(mDisplayInfo); 125 isDefaultDisplay = mDisplayId == Display.DEFAULT_DISPLAY; 126 mService = service; 127 } 128 129 int getDisplayId() { 130 return mDisplayId; 131 } 132 133 WindowList getWindowList() { 134 return mWindows; 135 } 136 137 Display getDisplay() { 138 return mDisplay; 139 } 140 141 DisplayInfo getDisplayInfo() { 142 return mDisplayInfo; 143 } 144 145 /** 146 * Returns true if the specified UID has access to this display. 147 */ 148 public boolean hasAccess(int uid) { 149 return mDisplay.hasAccess(uid); 150 } 151 152 public boolean isPrivate() { 153 return (mDisplay.getFlags() & Display.FLAG_PRIVATE) != 0; 154 } 155 156 /** 157 * Retrieve the tasks on this display in stack order from the bottommost TaskStack up. 158 * @return All the Tasks, in order, on this display. 159 */ 160 ArrayList<Task> getTasks() { 161 return mTaskHistory; 162 } 163 164 void addTask(Task task, boolean toTop) { 165 mTaskHistory.remove(task); 166 167 final int userId = task.mUserId; 168 int taskNdx; 169 final int numTasks = mTaskHistory.size(); 170 if (toTop) { 171 for (taskNdx = numTasks - 1; taskNdx >= 0; --taskNdx) { 172 if (mTaskHistory.get(taskNdx).mUserId == userId) { 173 break; 174 } 175 } 176 ++taskNdx; 177 } else { 178 for (taskNdx = 0; taskNdx < numTasks; ++taskNdx) { 179 if (mTaskHistory.get(taskNdx).mUserId == userId) { 180 break; 181 } 182 } 183 } 184 185 mTaskHistory.add(taskNdx, task); 186 EventLog.writeEvent(EventLogTags.WM_TASK_MOVED, task.taskId, toTop ? 1 : 0, taskNdx); 187 } 188 189 void removeTask(Task task) { 190 mTaskHistory.remove(task); 191 } 192 193 TaskStack getHomeStack() { 194 if (mHomeStack == null) { 195 Slog.e(TAG, "getHomeStack: Returning null from this=" + this); 196 } 197 return mHomeStack; 198 } 199 200 void updateDisplayInfo() { 201 // Save old size. 202 int oldWidth = mDisplayInfo.logicalWidth; 203 int oldHeight = mDisplayInfo.logicalHeight; 204 mDisplay.getDisplayInfo(mDisplayInfo); 205 206 for (int i = mStacks.size() - 1; i >= 0; --i) { 207 final TaskStack stack = mStacks.get(i); 208 if (!stack.isFullscreen()) { 209 stack.resizeBounds(oldWidth, oldHeight, mDisplayInfo.logicalWidth, 210 mDisplayInfo.logicalHeight); 211 } 212 } 213 } 214 215 void getLogicalDisplayRect(Rect out) { 216 updateDisplayInfo(); 217 // Uses same calculation as in LogicalDisplay#configureDisplayInTransactionLocked. 218 final int orientation = mDisplayInfo.rotation; 219 boolean rotated = (orientation == Surface.ROTATION_90 220 || orientation == Surface.ROTATION_270); 221 final int physWidth = rotated ? mBaseDisplayHeight : mBaseDisplayWidth; 222 final int physHeight = rotated ? mBaseDisplayWidth : mBaseDisplayHeight; 223 int width = mDisplayInfo.logicalWidth; 224 int left = (physWidth - width) / 2; 225 int height = mDisplayInfo.logicalHeight; 226 int top = (physHeight - height) / 2; 227 out.set(left, top, left + width, top + height); 228 } 229 230 /** @return The number of tokens in all of the Tasks on this display. */ 231 int numTokens() { 232 int count = 0; 233 for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { 234 count += mTaskHistory.get(taskNdx).mAppTokens.size(); 235 } 236 return count; 237 } 238 239 /** Refer to {@link WindowManagerService#createStack(int, int)} */ 240 TaskStack createStack(int stackId) { 241 if (DEBUG_STACK) Slog.d(TAG, "createStack: stackId=" + stackId); 242 TaskStack newStack = new TaskStack(mService, stackId, this); 243 if (stackId == HOME_STACK_ID) { 244 if (mHomeStack != null) { 245 throw new IllegalArgumentException("createStack: HOME_STACK_ID (0) not first."); 246 } 247 mHomeStack = newStack; 248 } 249 mStacks.add(newStack); 250 layoutNeeded = true; 251 return newStack; 252 } 253 254 void moveStack(TaskStack stack, boolean toTop) { 255 mStacks.remove(stack); 256 mStacks.add(toTop ? mStacks.size() : 0, stack); 257 } 258 259 TaskStack removeStack(TaskStack stack) { 260 mStacks.remove(stack); 261 if (!mStacks.isEmpty()) { 262 return mStacks.get(mStacks.size() - 1); 263 } 264 return null; 265 } 266 267 /** 268 * Propagate the new bounds to all child stacks. 269 * @param contentRect The bounds to apply at the top level. 270 */ 271 void resize(Rect contentRect) { 272 mContentRect.set(contentRect); 273 } 274 275 boolean getStackBounds(int stackId, Rect bounds) { 276 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 277 final TaskStack stack = mStacks.get(stackNdx); 278 if (stackId == stack.mStackId) { 279 bounds.set(stack.mBounds); 280 return true; 281 } 282 } 283 return false; 284 } 285 286 int stackIdFromPoint(int x, int y) { 287 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 288 final TaskStack stack = mStacks.get(stackNdx); 289 stack.getBounds(mTmpRect); 290 if (mTmpRect.contains(x, y)) { 291 return stack.mStackId; 292 } 293 } 294 return -1; 295 } 296 297 void setTouchExcludeRegion(TaskStack focusedStack) { 298 mTouchExcludeRegion.set(mBaseDisplayRect); 299 WindowList windows = getWindowList(); 300 for (int i = windows.size() - 1; i >= 0; --i) { 301 final WindowState win = windows.get(i); 302 final TaskStack stack = win.getStack(); 303 if (win.isVisibleLw() && stack != null && stack != focusedStack) { 304 mTmpRect.set(win.mVisibleFrame); 305 mTmpRect.intersect(win.mVisibleInsets); 306 mTouchExcludeRegion.op(mTmpRect, Region.Op.DIFFERENCE); 307 } 308 } 309 } 310 311 void switchUserStacks(int oldUserId, int newUserId) { 312 final WindowList windows = getWindowList(); 313 for (int i = 0; i < windows.size(); i++) { 314 final WindowState win = windows.get(i); 315 if (win.isHiddenFromUserLocked()) { 316 if (DEBUG_VISIBILITY) Slog.w(TAG, "user changing " + newUserId + " hiding " 317 + win + ", attrs=" + win.mAttrs.type + ", belonging to " 318 + win.mOwnerUid); 319 win.hideLw(false); 320 } 321 } 322 323 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 324 mStacks.get(stackNdx).switchUser(newUserId); 325 } 326 } 327 328 void resetAnimationBackgroundAnimator() { 329 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 330 mStacks.get(stackNdx).resetAnimationBackgroundAnimator(); 331 } 332 } 333 334 boolean animateDimLayers() { 335 boolean result = false; 336 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 337 result |= mStacks.get(stackNdx).animateDimLayers(); 338 } 339 return result; 340 } 341 342 void resetDimming() { 343 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 344 mStacks.get(stackNdx).resetDimmingTag(); 345 } 346 } 347 348 boolean isDimming() { 349 boolean result = false; 350 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 351 result |= mStacks.get(stackNdx).isDimming(); 352 } 353 return result; 354 } 355 356 void stopDimmingIfNeeded() { 357 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 358 mStacks.get(stackNdx).stopDimmingIfNeeded(); 359 } 360 } 361 362 void close() { 363 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 364 mStacks.get(stackNdx).close(); 365 } 366 } 367 368 public void dump(String prefix, PrintWriter pw) { 369 pw.print(prefix); pw.print("Display: mDisplayId="); pw.println(mDisplayId); 370 final String subPrefix = " " + prefix; 371 pw.print(subPrefix); pw.print("init="); pw.print(mInitialDisplayWidth); pw.print("x"); 372 pw.print(mInitialDisplayHeight); pw.print(" "); pw.print(mInitialDisplayDensity); 373 pw.print("dpi"); 374 if (mInitialDisplayWidth != mBaseDisplayWidth 375 || mInitialDisplayHeight != mBaseDisplayHeight 376 || mInitialDisplayDensity != mBaseDisplayDensity) { 377 pw.print(" base="); 378 pw.print(mBaseDisplayWidth); pw.print("x"); pw.print(mBaseDisplayHeight); 379 pw.print(" "); pw.print(mBaseDisplayDensity); pw.print("dpi"); 380 } 381 pw.print(" cur="); 382 pw.print(mDisplayInfo.logicalWidth); 383 pw.print("x"); pw.print(mDisplayInfo.logicalHeight); 384 pw.print(" app="); 385 pw.print(mDisplayInfo.appWidth); 386 pw.print("x"); pw.print(mDisplayInfo.appHeight); 387 pw.print(" rng="); pw.print(mDisplayInfo.smallestNominalAppWidth); 388 pw.print("x"); pw.print(mDisplayInfo.smallestNominalAppHeight); 389 pw.print("-"); pw.print(mDisplayInfo.largestNominalAppWidth); 390 pw.print("x"); pw.println(mDisplayInfo.largestNominalAppHeight); 391 pw.print(subPrefix); pw.print("layoutNeeded="); pw.println(layoutNeeded); 392 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 393 final TaskStack stack = mStacks.get(stackNdx); 394 pw.print(prefix); pw.print("mStacks[" + stackNdx + "]"); pw.println(stack.mStackId); 395 stack.dump(prefix + " ", pw); 396 } 397 int ndx = numTokens(); 398 if (ndx > 0) { 399 pw.println(); 400 pw.println(" Application tokens in Z order:"); 401 getTasks(); 402 for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { 403 AppTokenList tokens = mTaskHistory.get(taskNdx).mAppTokens; 404 for (int tokenNdx = tokens.size() - 1; tokenNdx >= 0; --tokenNdx) { 405 final AppWindowToken wtoken = tokens.get(tokenNdx); 406 pw.print(" App #"); pw.print(ndx--); 407 pw.print(' '); pw.print(wtoken); pw.println(":"); 408 wtoken.dump(pw, " "); 409 } 410 } 411 } 412 if (mExitingTokens.size() > 0) { 413 pw.println(); 414 pw.println(" Exiting tokens:"); 415 for (int i=mExitingTokens.size()-1; i>=0; i--) { 416 WindowToken token = mExitingTokens.get(i); 417 pw.print(" Exiting #"); pw.print(i); 418 pw.print(' '); pw.print(token); 419 pw.println(':'); 420 token.dump(pw, " "); 421 } 422 } 423 if (mExitingAppTokens.size() > 0) { 424 pw.println(); 425 pw.println(" Exiting application tokens:"); 426 for (int i=mExitingAppTokens.size()-1; i>=0; i--) { 427 WindowToken token = mExitingAppTokens.get(i); 428 pw.print(" Exiting App #"); pw.print(i); 429 pw.print(' '); pw.print(token); 430 pw.println(':'); 431 token.dump(pw, " "); 432 } 433 } 434 pw.println(); 435 } 436 437 @Override 438 public String toString() { 439 return "Display " + mDisplayId + " info=" + mDisplayInfo + " stacks=" + mStacks; 440 } 441} 442