DisplayContent.java revision dc548483ae90ba26ad9e2e2cb79f4673140edb49
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 /** 106 * @param display May not be null. 107 * @param service You know. 108 */ 109 DisplayContent(Display display, WindowManagerService service) { 110 mDisplay = display; 111 mDisplayId = display.getDisplayId(); 112 display.getDisplayInfo(mDisplayInfo); 113 isDefaultDisplay = mDisplayId == Display.DEFAULT_DISPLAY; 114 mService = service; 115 } 116 117 int getDisplayId() { 118 return mDisplayId; 119 } 120 121 WindowList getWindowList() { 122 return mWindows; 123 } 124 125 Display getDisplay() { 126 return mDisplay; 127 } 128 129 DisplayInfo getDisplayInfo() { 130 return mDisplayInfo; 131 } 132 133 /** 134 * Returns true if the specified UID has access to this display. 135 */ 136 public boolean hasAccess(int uid) { 137 return mDisplay.hasAccess(uid); 138 } 139 140 public boolean isPrivate() { 141 return (mDisplay.getFlags() & Display.FLAG_PRIVATE) != 0; 142 } 143 144 ArrayList<TaskStack> getStacks() { 145 return mStacks; 146 } 147 148 /** 149 * Retrieve the tasks on this display in stack order from the bottommost TaskStack up. 150 * @return All the Tasks, in order, on this display. 151 */ 152 ArrayList<Task> getTasks() { 153 mTmpTaskHistory.clear(); 154 final int numStacks = mStacks.size(); 155 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 156 mTmpTaskHistory.addAll(mStacks.get(stackNdx).getTasks()); 157 } 158 return mTmpTaskHistory; 159 } 160 161 TaskStack getHomeStack() { 162 if (mHomeStack == null) { 163 Slog.e(TAG, "getHomeStack: Returning null from this=" + this); 164 } 165 return mHomeStack; 166 } 167 168 void updateDisplayInfo() { 169 // Save old size. 170 int oldWidth = mDisplayInfo.logicalWidth; 171 int oldHeight = mDisplayInfo.logicalHeight; 172 mDisplay.getDisplayInfo(mDisplayInfo); 173 174 for (int i = mStacks.size() - 1; i >= 0; --i) { 175 final TaskStack stack = mStacks.get(i); 176 if (!stack.isFullscreen()) { 177 stack.resizeBounds(oldWidth, oldHeight, mDisplayInfo.logicalWidth, 178 mDisplayInfo.logicalHeight); 179 } 180 } 181 } 182 183 void getLogicalDisplayRect(Rect out) { 184 updateDisplayInfo(); 185 // Uses same calculation as in LogicalDisplay#configureDisplayInTransactionLocked. 186 final int orientation = mDisplayInfo.rotation; 187 boolean rotated = (orientation == Surface.ROTATION_90 188 || orientation == Surface.ROTATION_270); 189 final int physWidth = rotated ? mBaseDisplayHeight : mBaseDisplayWidth; 190 final int physHeight = rotated ? mBaseDisplayWidth : mBaseDisplayHeight; 191 int width = mDisplayInfo.logicalWidth; 192 int left = (physWidth - width) / 2; 193 int height = mDisplayInfo.logicalHeight; 194 int top = (physHeight - height) / 2; 195 out.set(left, top, left + width, top + height); 196 } 197 198 /** Refer to {@link WindowManagerService#attachStack(int, int)} */ 199 void attachStack(TaskStack stack) { 200 if (stack.mStackId == HOME_STACK_ID) { 201 if (mHomeStack != null) { 202 throw new IllegalArgumentException("attachStack: HOME_STACK_ID (0) not first."); 203 } 204 mHomeStack = stack; 205 } 206 mStacks.add(stack); 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 stackIdFromPoint(int x, int y) { 228 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 229 final TaskStack stack = mStacks.get(stackNdx); 230 stack.getBounds(mTmpRect); 231 if (mTmpRect.contains(x, y)) { 232 return stack.mStackId; 233 } 234 } 235 return -1; 236 } 237 238 void setTouchExcludeRegion(TaskStack focusedStack) { 239 mTouchExcludeRegion.set(mBaseDisplayRect); 240 WindowList windows = getWindowList(); 241 for (int i = windows.size() - 1; i >= 0; --i) { 242 final WindowState win = windows.get(i); 243 final TaskStack stack = win.getStack(); 244 if (win.isVisibleLw() && stack != null && stack != focusedStack) { 245 mTmpRect.set(win.mVisibleFrame); 246 mTmpRect.intersect(win.mVisibleInsets); 247 mTouchExcludeRegion.op(mTmpRect, Region.Op.DIFFERENCE); 248 } 249 } 250 } 251 252 void switchUserStacks(int newUserId) { 253 final WindowList windows = getWindowList(); 254 for (int i = 0; i < windows.size(); i++) { 255 final WindowState win = windows.get(i); 256 if (win.isHiddenFromUserLocked()) { 257 if (DEBUG_VISIBILITY) Slog.w(TAG, "user changing " + newUserId + " hiding " 258 + win + ", attrs=" + win.mAttrs.type + ", belonging to " 259 + win.mOwnerUid); 260 win.hideLw(false); 261 } 262 } 263 264 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 265 mStacks.get(stackNdx).switchUser(newUserId); 266 } 267 } 268 269 void resetAnimationBackgroundAnimator() { 270 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 271 mStacks.get(stackNdx).resetAnimationBackgroundAnimator(); 272 } 273 } 274 275 boolean animateDimLayers() { 276 boolean result = false; 277 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 278 result |= mStacks.get(stackNdx).animateDimLayers(); 279 } 280 return result; 281 } 282 283 void resetDimming() { 284 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 285 mStacks.get(stackNdx).resetDimmingTag(); 286 } 287 } 288 289 boolean isDimming() { 290 boolean result = false; 291 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 292 result |= mStacks.get(stackNdx).isDimming(); 293 } 294 return result; 295 } 296 297 void stopDimmingIfNeeded() { 298 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 299 mStacks.get(stackNdx).stopDimmingIfNeeded(); 300 } 301 } 302 303 void close() { 304 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 305 mStacks.get(stackNdx).close(); 306 } 307 } 308 309 public void dump(String prefix, PrintWriter pw) { 310 pw.print(prefix); pw.print("Display: mDisplayId="); pw.println(mDisplayId); 311 final String subPrefix = " " + prefix; 312 pw.print(subPrefix); pw.print("init="); pw.print(mInitialDisplayWidth); pw.print("x"); 313 pw.print(mInitialDisplayHeight); pw.print(" "); pw.print(mInitialDisplayDensity); 314 pw.print("dpi"); 315 if (mInitialDisplayWidth != mBaseDisplayWidth 316 || mInitialDisplayHeight != mBaseDisplayHeight 317 || mInitialDisplayDensity != mBaseDisplayDensity) { 318 pw.print(" base="); 319 pw.print(mBaseDisplayWidth); pw.print("x"); pw.print(mBaseDisplayHeight); 320 pw.print(" "); pw.print(mBaseDisplayDensity); pw.print("dpi"); 321 } 322 pw.print(" cur="); 323 pw.print(mDisplayInfo.logicalWidth); 324 pw.print("x"); pw.print(mDisplayInfo.logicalHeight); 325 pw.print(" app="); 326 pw.print(mDisplayInfo.appWidth); 327 pw.print("x"); pw.print(mDisplayInfo.appHeight); 328 pw.print(" rng="); pw.print(mDisplayInfo.smallestNominalAppWidth); 329 pw.print("x"); pw.print(mDisplayInfo.smallestNominalAppHeight); 330 pw.print("-"); pw.print(mDisplayInfo.largestNominalAppWidth); 331 pw.print("x"); pw.println(mDisplayInfo.largestNominalAppHeight); 332 pw.print(subPrefix); pw.print("layoutNeeded="); pw.println(layoutNeeded); 333 for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) { 334 final TaskStack stack = mStacks.get(stackNdx); 335 pw.print(prefix); pw.print("mStacks[" + stackNdx + "]"); pw.println(stack.mStackId); 336 stack.dump(prefix + " ", pw); 337 } 338 pw.println(); 339 pw.println(" Application tokens in bottom up Z order:"); 340 int ndx = 0; 341 final int numStacks = mStacks.size(); 342 for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) { 343 ArrayList<Task> tasks = mStacks.get(stackNdx).getTasks(); 344 for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { 345 AppTokenList tokens = tasks.get(taskNdx).mAppTokens; 346 for (int tokenNdx = tokens.size() - 1; tokenNdx >= 0; --tokenNdx) { 347 final AppWindowToken wtoken = tokens.get(tokenNdx); 348 pw.print(" App #"); pw.print(ndx++); 349 pw.print(' '); pw.print(wtoken); pw.println(":"); 350 wtoken.dump(pw, " "); 351 } 352 } 353 } 354 if (ndx == 0) { 355 pw.println(" None"); 356 } 357 pw.println(); 358 if (!mExitingTokens.isEmpty()) { 359 pw.println(); 360 pw.println(" Exiting tokens:"); 361 for (int i=mExitingTokens.size()-1; i>=0; i--) { 362 WindowToken token = mExitingTokens.get(i); 363 pw.print(" Exiting #"); pw.print(i); 364 pw.print(' '); pw.print(token); 365 pw.println(':'); 366 token.dump(pw, " "); 367 } 368 } 369 pw.println(); 370 } 371 372 @Override 373 public String toString() { 374 return "Display " + mDisplayId + " info=" + mDisplayInfo + " stacks=" + mStacks; 375 } 376} 377