DisplayContent.java revision 1bf2b873470d2ba8a4ac218da73516cc2b20aa76
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_VISIBILITY; 21import static com.android.server.wm.WindowManagerService.TAG; 22 23import android.graphics.Rect; 24import android.graphics.Region; 25import android.util.Slog; 26import android.view.Display; 27import android.view.DisplayInfo; 28import android.view.Surface; 29 30import java.io.PrintWriter; 31import java.util.ArrayList; 32 33class DisplayContentList extends ArrayList<DisplayContent> { 34} 35 36/** 37 * Utility class for keeping track of the WindowStates and other pertinent contents of a 38 * particular Display. 39 * 40 * IMPORTANT: No method from this class should ever be used without holding 41 * WindowManagerService.mWindowMap. 42 */ 43class DisplayContent { 44 45 /** Unique identifier of this stack. */ 46 private final int mDisplayId; 47 48 /** Z-ordered (bottom-most first) list of all Window objects. Assigned to an element 49 * from mDisplayWindows; */ 50 private final WindowList mWindows = new WindowList(); 51 52 // This protects the following display size properties, so that 53 // getDisplaySize() doesn't need to acquire the global lock. This is 54 // needed because the window manager sometimes needs to use ActivityThread 55 // while it has its global state locked (for example to load animation 56 // resources), but the ActivityThread also needs get the current display 57 // size sometimes when it has its package lock held. 58 // 59 // These will only be modified with both mWindowMap and mDisplaySizeLock 60 // held (in that order) so the window manager doesn't need to acquire this 61 // lock when needing these values in its normal operation. 62 final Object mDisplaySizeLock = new Object(); 63 int mInitialDisplayWidth = 0; 64 int mInitialDisplayHeight = 0; 65 int mInitialDisplayDensity = 0; 66 int mBaseDisplayWidth = 0; 67 int mBaseDisplayHeight = 0; 68 int mBaseDisplayDensity = 0; 69 private final DisplayInfo mDisplayInfo = new DisplayInfo(); 70 private final Display mDisplay; 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<WindowToken>(); 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<TaskStack>(); 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 stack bounds .*/ 92 StackTapPointerEventListener mTapDetector; 93 94 /** Detect user tapping outside of current focused stack bounds .*/ 95 Region mTouchExcludeRegion = new Region(); 96 97 /** Save allocating when calculating rects */ 98 Rect mTmpRect = new Rect(); 99 100 /** For gathering Task objects in order. */ 101 final ArrayList<Task> mTmpTaskHistory = new ArrayList<Task>(); 102 103 final WindowManagerService mService; 104 105 static final int DEFER_DETACH = 1; 106 static final int DEFER_REMOVAL = 2; 107 int mDeferredActions; 108 109 /** 110 * @param display May not be null. 111 * @param service You know. 112 */ 113 DisplayContent(Display display, WindowManagerService service) { 114 mDisplay = display; 115 mDisplayId = display.getDisplayId(); 116 display.getDisplayInfo(mDisplayInfo); 117 isDefaultDisplay = mDisplayId == Display.DEFAULT_DISPLAY; 118 mService = service; 119 } 120 121 int getDisplayId() { 122 return mDisplayId; 123 } 124 125 WindowList getWindowList() { 126 return mWindows; 127 } 128 129 Display getDisplay() { 130 return mDisplay; 131 } 132 133 DisplayInfo getDisplayInfo() { 134 return mDisplayInfo; 135 } 136 137 /** 138 * Returns true if the specified UID has access to this display. 139 */ 140 public boolean hasAccess(int uid) { 141 return mDisplay.hasAccess(uid); 142 } 143 144 public boolean isPrivate() { 145 return (mDisplay.getFlags() & Display.FLAG_PRIVATE) != 0; 146 } 147 148 ArrayList<TaskStack> getStacks() { 149 return mStacks; 150 } 151 152 /** 153 * Retrieve the tasks on this display in stack order from the bottommost TaskStack up. 154 * @return All the Tasks, in order, on this display. 155 */ 156 ArrayList<Task> getTasks() { 157 mTmpTaskHistory.clear(); 158 final int numStacks = mStacks.size(); 159 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 160 mTmpTaskHistory.addAll(mStacks.get(stackNdx).getTasks()); 161 } 162 return mTmpTaskHistory; 163 } 164 165 TaskStack getHomeStack() { 166 if (mHomeStack == null) { 167 Slog.e(TAG, "getHomeStack: Returning null from this=" + this); 168 } 169 return mHomeStack; 170 } 171 172 void updateDisplayInfo() { 173 // Save old size. 174 int oldWidth = mDisplayInfo.logicalWidth; 175 int oldHeight = mDisplayInfo.logicalHeight; 176 mDisplay.getDisplayInfo(mDisplayInfo); 177 178 for (int i = mStacks.size() - 1; i >= 0; --i) { 179 final TaskStack stack = mStacks.get(i); 180 if (!stack.isFullscreen()) { 181 stack.resizeBounds(oldWidth, oldHeight, mDisplayInfo.logicalWidth, 182 mDisplayInfo.logicalHeight); 183 } 184 } 185 } 186 187 void getLogicalDisplayRect(Rect out) { 188 updateDisplayInfo(); 189 // Uses same calculation as in LogicalDisplay#configureDisplayInTransactionLocked. 190 final int orientation = mDisplayInfo.rotation; 191 boolean rotated = (orientation == Surface.ROTATION_90 192 || orientation == Surface.ROTATION_270); 193 final int physWidth = rotated ? mBaseDisplayHeight : mBaseDisplayWidth; 194 final int physHeight = rotated ? mBaseDisplayWidth : mBaseDisplayHeight; 195 int width = mDisplayInfo.logicalWidth; 196 int left = (physWidth - width) / 2; 197 int height = mDisplayInfo.logicalHeight; 198 int top = (physHeight - height) / 2; 199 out.set(left, top, left + width, top + height); 200 } 201 202 /** Refer to {@link WindowManagerService#attachStack(int, int)} */ 203 void attachStack(TaskStack stack) { 204 if (stack.mStackId == HOME_STACK_ID) { 205 if (mHomeStack != null) { 206 throw new IllegalArgumentException("attachStack: HOME_STACK_ID (0) not first."); 207 } 208 mHomeStack = stack; 209 } 210 mStacks.add(stack); 211 layoutNeeded = true; 212 } 213 214 void moveStack(TaskStack stack, boolean toTop) { 215 mStacks.remove(stack); 216 mStacks.add(toTop ? mStacks.size() : 0, stack); 217 } 218 219 void detachStack(TaskStack stack) { 220 mStacks.remove(stack); 221 } 222 223 /** 224 * Propagate the new bounds to all child stacks. 225 * @param contentRect The bounds to apply at the top level. 226 */ 227 void resize(Rect contentRect) { 228 mContentRect.set(contentRect); 229 } 230 231 int stackIdFromPoint(int x, int y) { 232 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 233 final TaskStack stack = mStacks.get(stackNdx); 234 stack.getBounds(mTmpRect); 235 if (mTmpRect.contains(x, y)) { 236 return stack.mStackId; 237 } 238 } 239 return -1; 240 } 241 242 void setTouchExcludeRegion(TaskStack focusedStack) { 243 mTouchExcludeRegion.set(mBaseDisplayRect); 244 WindowList windows = getWindowList(); 245 for (int i = windows.size() - 1; i >= 0; --i) { 246 final WindowState win = windows.get(i); 247 final TaskStack stack = win.getStack(); 248 if (win.isVisibleLw() && stack != null && stack != focusedStack) { 249 mTmpRect.set(win.mVisibleFrame); 250 mTmpRect.intersect(win.mVisibleInsets); 251 mTouchExcludeRegion.op(mTmpRect, Region.Op.DIFFERENCE); 252 } 253 } 254 } 255 256 void switchUserStacks(int newUserId) { 257 final WindowList windows = getWindowList(); 258 for (int i = 0; i < windows.size(); i++) { 259 final WindowState win = windows.get(i); 260 if (win.isHiddenFromUserLocked()) { 261 if (DEBUG_VISIBILITY) Slog.w(TAG, "user changing " + newUserId + " hiding " 262 + win + ", attrs=" + win.mAttrs.type + ", belonging to " 263 + win.mOwnerUid); 264 win.hideLw(false); 265 } 266 } 267 268 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 269 mStacks.get(stackNdx).switchUser(newUserId); 270 } 271 } 272 273 void resetAnimationBackgroundAnimator() { 274 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 275 mStacks.get(stackNdx).resetAnimationBackgroundAnimator(); 276 } 277 } 278 279 boolean animateDimLayers() { 280 boolean result = false; 281 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 282 result |= mStacks.get(stackNdx).animateDimLayers(); 283 } 284 return result; 285 } 286 287 void resetDimming() { 288 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 289 mStacks.get(stackNdx).resetDimmingTag(); 290 } 291 } 292 293 boolean isDimming() { 294 boolean result = false; 295 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 296 result |= mStacks.get(stackNdx).isDimming(); 297 } 298 return result; 299 } 300 301 void stopDimmingIfNeeded() { 302 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 303 mStacks.get(stackNdx).stopDimmingIfNeeded(); 304 } 305 } 306 307 void close() { 308 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 309 mStacks.get(stackNdx).close(); 310 } 311 } 312 313 public void dump(String prefix, PrintWriter pw) { 314 pw.print(prefix); pw.print("Display: mDisplayId="); pw.println(mDisplayId); 315 final String subPrefix = " " + prefix; 316 pw.print(subPrefix); pw.print("init="); pw.print(mInitialDisplayWidth); pw.print("x"); 317 pw.print(mInitialDisplayHeight); pw.print(" "); pw.print(mInitialDisplayDensity); 318 pw.print("dpi"); 319 if (mInitialDisplayWidth != mBaseDisplayWidth 320 || mInitialDisplayHeight != mBaseDisplayHeight 321 || mInitialDisplayDensity != mBaseDisplayDensity) { 322 pw.print(" base="); 323 pw.print(mBaseDisplayWidth); pw.print("x"); pw.print(mBaseDisplayHeight); 324 pw.print(" "); pw.print(mBaseDisplayDensity); pw.print("dpi"); 325 } 326 pw.print(" cur="); 327 pw.print(mDisplayInfo.logicalWidth); 328 pw.print("x"); pw.print(mDisplayInfo.logicalHeight); 329 pw.print(" app="); 330 pw.print(mDisplayInfo.appWidth); 331 pw.print("x"); pw.print(mDisplayInfo.appHeight); 332 pw.print(" rng="); pw.print(mDisplayInfo.smallestNominalAppWidth); 333 pw.print("x"); pw.print(mDisplayInfo.smallestNominalAppHeight); 334 pw.print("-"); pw.print(mDisplayInfo.largestNominalAppWidth); 335 pw.print("x"); pw.println(mDisplayInfo.largestNominalAppHeight); 336 pw.print(subPrefix); pw.print("layoutNeeded="); pw.println(layoutNeeded); 337 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 338 final TaskStack stack = mStacks.get(stackNdx); 339 pw.print(prefix); pw.print("mStacks[" + stackNdx + "]"); pw.println(stack.mStackId); 340 stack.dump(prefix + " ", pw); 341 } 342 pw.println(); 343 pw.println(" Application tokens in bottom up Z order:"); 344 int ndx = 0; 345 final int numStacks = mStacks.size(); 346 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 347 ArrayList<Task> tasks = mStacks.get(stackNdx).getTasks(); 348 for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { 349 AppTokenList tokens = tasks.get(taskNdx).mAppTokens; 350 for (int tokenNdx = tokens.size() - 1; tokenNdx >= 0; --tokenNdx) { 351 final AppWindowToken wtoken = tokens.get(tokenNdx); 352 pw.print(" App #"); pw.print(ndx++); 353 pw.print(' '); pw.print(wtoken); pw.println(":"); 354 wtoken.dump(pw, " "); 355 } 356 } 357 } 358 if (ndx == 0) { 359 pw.println(" None"); 360 } 361 pw.println(); 362 if (!mExitingTokens.isEmpty()) { 363 pw.println(); 364 pw.println(" Exiting tokens:"); 365 for (int i=mExitingTokens.size()-1; i>=0; i--) { 366 WindowToken token = mExitingTokens.get(i); 367 pw.print(" Exiting #"); pw.print(i); 368 pw.print(' '); pw.print(token); 369 pw.println(':'); 370 token.dump(pw, " "); 371 } 372 } 373 pw.println(); 374 } 375 376 @Override 377 public String toString() { 378 return "Display " + mDisplayId + " info=" + mDisplayInfo + " stacks=" + mStacks; 379 } 380} 381