1 /* 2 * Copyright (C) 2015 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 17 package com.android.server.wm; 18 19 import static android.app.ActivityManager.StackId.FREEFORM_WORKSPACE_STACK_ID; 20 import static android.view.WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER; 21 import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_KEYGUARD; 22 import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_STARTING; 23 import static android.view.WindowManager.LayoutParams.TYPE_KEYGUARD_SCRIM; 24 import static android.view.WindowManager.LayoutParams.TYPE_WALLPAPER; 25 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_ADD_REMOVE; 26 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_APP_TRANSITIONS; 27 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_LAYERS; 28 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_WINDOW_MOVEMENT; 29 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_VISIBILITY; 30 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_WALLPAPER; 31 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_WALLPAPER_LIGHT; 32 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME; 33 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM; 34 import static com.android.server.wm.WindowManagerService.H.WALLPAPER_DRAW_PENDING_TIMEOUT; 35 import static com.android.server.wm.WindowManagerService.TYPE_LAYER_MULTIPLIER; 36 import static com.android.server.wm.WindowManagerService.TYPE_LAYER_OFFSET; 37 38 import android.os.Bundle; 39 import android.os.Debug; 40 import android.os.IBinder; 41 import android.os.RemoteException; 42 import android.os.SystemClock; 43 import android.util.Slog; 44 import android.view.DisplayInfo; 45 import android.view.WindowManager; 46 import android.view.WindowManagerPolicy; 47 48 import java.io.PrintWriter; 49 import java.util.ArrayList; 50 51 /** 52 * Controls wallpaper windows visibility, ordering, and so on. 53 * NOTE: All methods in this class must be called with the window manager service lock held. 54 */ 55 class WallpaperController { 56 private static final String TAG = TAG_WITH_CLASS_NAME ? "WallpaperController" : TAG_WM; 57 final private WindowManagerService mService; 58 59 private final ArrayList<WindowToken> mWallpaperTokens = new ArrayList<>(); 60 61 // If non-null, this is the currently visible window that is associated 62 // with the wallpaper. 63 private WindowState mWallpaperTarget = null; 64 // If non-null, we are in the middle of animating from one wallpaper target 65 // to another, and this is the lower one in Z-order. 66 private WindowState mLowerWallpaperTarget = null; 67 // If non-null, we are in the middle of animating from one wallpaper target 68 // to another, and this is the higher one in Z-order. 69 private WindowState mUpperWallpaperTarget = null; 70 71 private int mWallpaperAnimLayerAdjustment; 72 73 private float mLastWallpaperX = -1; 74 private float mLastWallpaperY = -1; 75 private float mLastWallpaperXStep = -1; 76 private float mLastWallpaperYStep = -1; 77 private int mLastWallpaperDisplayOffsetX = Integer.MIN_VALUE; 78 private int mLastWallpaperDisplayOffsetY = Integer.MIN_VALUE; 79 80 // This is set when we are waiting for a wallpaper to tell us it is done 81 // changing its scroll position. 82 WindowState mWaitingOnWallpaper; 83 84 // The last time we had a timeout when waiting for a wallpaper. 85 private long mLastWallpaperTimeoutTime; 86 // We give a wallpaper up to 150ms to finish scrolling. 87 private static final long WALLPAPER_TIMEOUT = 150; 88 // Time we wait after a timeout before trying to wait again. 89 private static final long WALLPAPER_TIMEOUT_RECOVERY = 10000; 90 91 // Set to the wallpaper window we would like to hide once the transition animations are done. 92 // This is useful in cases where we don't want the wallpaper to be hidden when the close app 93 // is a wallpaper target and is done animating out, but the opening app isn't a wallpaper 94 // target and isn't done animating in. 95 private WindowState mDeferredHideWallpaper = null; 96 97 // We give a wallpaper up to 500ms to finish drawing before playing app transitions. 98 private static final long WALLPAPER_DRAW_PENDING_TIMEOUT_DURATION = 500; 99 private static final int WALLPAPER_DRAW_NORMAL = 0; 100 private static final int WALLPAPER_DRAW_PENDING = 1; 101 private static final int WALLPAPER_DRAW_TIMEOUT = 2; 102 private int mWallpaperDrawState = WALLPAPER_DRAW_NORMAL; 103 104 private final FindWallpaperTargetResult mFindResults = new FindWallpaperTargetResult(); 105 106 public WallpaperController(WindowManagerService service) { 107 mService = service; 108 } 109 110 WindowState getWallpaperTarget() { 111 return mWallpaperTarget; 112 } 113 114 WindowState getLowerWallpaperTarget() { 115 return mLowerWallpaperTarget; 116 } 117 118 WindowState getUpperWallpaperTarget() { 119 return mUpperWallpaperTarget; 120 } 121 122 boolean isWallpaperTarget(WindowState win) { 123 return win == mWallpaperTarget; 124 } 125 126 boolean isBelowWallpaperTarget(WindowState win) { 127 return mWallpaperTarget != null && mWallpaperTarget.mLayer >= win.mBaseLayer; 128 } 129 130 boolean isWallpaperVisible() { 131 return isWallpaperVisible(mWallpaperTarget); 132 } 133 134 private boolean isWallpaperVisible(WindowState wallpaperTarget) { 135 if (DEBUG_WALLPAPER) Slog.v(TAG, "Wallpaper vis: target " + wallpaperTarget + ", obscured=" 136 + (wallpaperTarget != null ? Boolean.toString(wallpaperTarget.mObscured) : "??") 137 + " anim=" + ((wallpaperTarget != null && wallpaperTarget.mAppToken != null) 138 ? wallpaperTarget.mAppToken.mAppAnimator.animation : null) 139 + " upper=" + mUpperWallpaperTarget 140 + " lower=" + mLowerWallpaperTarget); 141 return (wallpaperTarget != null 142 && (!wallpaperTarget.mObscured || (wallpaperTarget.mAppToken != null 143 && wallpaperTarget.mAppToken.mAppAnimator.animation != null))) 144 || mUpperWallpaperTarget != null 145 || mLowerWallpaperTarget != null; 146 } 147 148 boolean isWallpaperTargetAnimating() { 149 return mWallpaperTarget != null && mWallpaperTarget.mWinAnimator.isAnimationSet() 150 && !mWallpaperTarget.mWinAnimator.isDummyAnimation(); 151 } 152 153 void updateWallpaperVisibility() { 154 final DisplayContent displayContent = mWallpaperTarget.getDisplayContent(); 155 if (displayContent == null) { 156 return; 157 } 158 final boolean visible = isWallpaperVisible(mWallpaperTarget); 159 final DisplayInfo displayInfo = displayContent.getDisplayInfo(); 160 final int dw = displayInfo.logicalWidth; 161 final int dh = displayInfo.logicalHeight; 162 163 for (int curTokenNdx = mWallpaperTokens.size() - 1; curTokenNdx >= 0; curTokenNdx--) { 164 WindowToken token = mWallpaperTokens.get(curTokenNdx); 165 if (token.hidden == visible) { 166 token.hidden = !visible; 167 // Need to do a layout to ensure the wallpaper now has the 168 // correct size. 169 displayContent.layoutNeeded = true; 170 } 171 172 final WindowList windows = token.windows; 173 for (int wallpaperNdx = windows.size() - 1; wallpaperNdx >= 0; wallpaperNdx--) { 174 WindowState wallpaper = windows.get(wallpaperNdx); 175 if (visible) { 176 updateWallpaperOffset(wallpaper, dw, dh, false); 177 } 178 179 dispatchWallpaperVisibility(wallpaper, visible); 180 } 181 } 182 } 183 184 void hideDeferredWallpapersIfNeeded() { 185 if (mDeferredHideWallpaper != null) { 186 hideWallpapers(mDeferredHideWallpaper); 187 mDeferredHideWallpaper = null; 188 } 189 } 190 191 void hideWallpapers(final WindowState winGoingAway) { 192 if (mWallpaperTarget != null 193 && (mWallpaperTarget != winGoingAway || mLowerWallpaperTarget != null)) { 194 return; 195 } 196 if (mService.mAppTransition.isRunning()) { 197 // Defer hiding the wallpaper when app transition is running until the animations 198 // are done. 199 mDeferredHideWallpaper = winGoingAway; 200 return; 201 } 202 203 final boolean wasDeferred = (mDeferredHideWallpaper == winGoingAway); 204 for (int i = mWallpaperTokens.size() - 1; i >= 0; i--) { 205 final WindowToken token = mWallpaperTokens.get(i); 206 for (int j = token.windows.size() - 1; j >= 0; j--) { 207 final WindowState wallpaper = token.windows.get(j); 208 final WindowStateAnimator winAnimator = wallpaper.mWinAnimator; 209 if (!winAnimator.mLastHidden || wasDeferred) { 210 winAnimator.hide("hideWallpapers"); 211 dispatchWallpaperVisibility(wallpaper, false); 212 final DisplayContent displayContent = wallpaper.getDisplayContent(); 213 if (displayContent != null) { 214 displayContent.pendingLayoutChanges |= 215 WindowManagerPolicy.FINISH_LAYOUT_REDO_WALLPAPER; 216 } 217 } 218 } 219 if (DEBUG_WALLPAPER_LIGHT && !token.hidden) Slog.d(TAG, "Hiding wallpaper " + token 220 + " from " + winGoingAway + " target=" + mWallpaperTarget + " lower=" 221 + mLowerWallpaperTarget + "\n" + Debug.getCallers(5, " ")); 222 token.hidden = true; 223 } 224 } 225 226 /** 227 * Check wallpaper for visibility change and notify window if so. 228 * @param wallpaper The wallpaper to test and notify. 229 * @param visible Current visibility. 230 */ 231 void dispatchWallpaperVisibility(final WindowState wallpaper, final boolean visible) { 232 // Only send notification if the visibility actually changed and we are not trying to hide 233 // the wallpaper when we are deferring hiding of the wallpaper. 234 if (wallpaper.mWallpaperVisible != visible 235 && (mDeferredHideWallpaper == null || visible)) { 236 wallpaper.mWallpaperVisible = visible; 237 try { 238 if (DEBUG_VISIBILITY || DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, 239 "Updating vis of wallpaper " + wallpaper 240 + ": " + visible + " from:\n" + Debug.getCallers(4, " ")); 241 wallpaper.mClient.dispatchAppVisibility(visible); 242 } catch (RemoteException e) { 243 } 244 } 245 } 246 247 boolean updateWallpaperOffset(WindowState wallpaperWin, int dw, int dh, boolean sync) { 248 boolean rawChanged = false; 249 // Set the default wallpaper x-offset to either edge of the screen (depending on RTL), to 250 // match the behavior of most Launchers 251 float defaultWallpaperX = wallpaperWin.isRtl() ? 1f : 0f; 252 float wpx = mLastWallpaperX >= 0 ? mLastWallpaperX : defaultWallpaperX; 253 float wpxs = mLastWallpaperXStep >= 0 ? mLastWallpaperXStep : -1.0f; 254 int availw = wallpaperWin.mFrame.right - wallpaperWin.mFrame.left - dw; 255 int offset = availw > 0 ? -(int)(availw * wpx + .5f) : 0; 256 if (mLastWallpaperDisplayOffsetX != Integer.MIN_VALUE) { 257 offset += mLastWallpaperDisplayOffsetX; 258 } 259 boolean changed = wallpaperWin.mXOffset != offset; 260 if (changed) { 261 if (DEBUG_WALLPAPER) Slog.v(TAG, "Update wallpaper " + wallpaperWin + " x: " + offset); 262 wallpaperWin.mXOffset = offset; 263 } 264 if (wallpaperWin.mWallpaperX != wpx || wallpaperWin.mWallpaperXStep != wpxs) { 265 wallpaperWin.mWallpaperX = wpx; 266 wallpaperWin.mWallpaperXStep = wpxs; 267 rawChanged = true; 268 } 269 270 float wpy = mLastWallpaperY >= 0 ? mLastWallpaperY : 0.5f; 271 float wpys = mLastWallpaperYStep >= 0 ? mLastWallpaperYStep : -1.0f; 272 int availh = wallpaperWin.mFrame.bottom - wallpaperWin.mFrame.top - dh; 273 offset = availh > 0 ? -(int)(availh * wpy + .5f) : 0; 274 if (mLastWallpaperDisplayOffsetY != Integer.MIN_VALUE) { 275 offset += mLastWallpaperDisplayOffsetY; 276 } 277 if (wallpaperWin.mYOffset != offset) { 278 if (DEBUG_WALLPAPER) Slog.v(TAG, "Update wallpaper " + wallpaperWin + " y: " + offset); 279 changed = true; 280 wallpaperWin.mYOffset = offset; 281 } 282 if (wallpaperWin.mWallpaperY != wpy || wallpaperWin.mWallpaperYStep != wpys) { 283 wallpaperWin.mWallpaperY = wpy; 284 wallpaperWin.mWallpaperYStep = wpys; 285 rawChanged = true; 286 } 287 288 if (rawChanged && (wallpaperWin.mAttrs.privateFlags & 289 WindowManager.LayoutParams.PRIVATE_FLAG_WANTS_OFFSET_NOTIFICATIONS) != 0) { 290 try { 291 if (DEBUG_WALLPAPER) Slog.v(TAG, "Report new wp offset " 292 + wallpaperWin + " x=" + wallpaperWin.mWallpaperX 293 + " y=" + wallpaperWin.mWallpaperY); 294 if (sync) { 295 mWaitingOnWallpaper = wallpaperWin; 296 } 297 wallpaperWin.mClient.dispatchWallpaperOffsets( 298 wallpaperWin.mWallpaperX, wallpaperWin.mWallpaperY, 299 wallpaperWin.mWallpaperXStep, wallpaperWin.mWallpaperYStep, sync); 300 if (sync) { 301 if (mWaitingOnWallpaper != null) { 302 long start = SystemClock.uptimeMillis(); 303 if ((mLastWallpaperTimeoutTime + WALLPAPER_TIMEOUT_RECOVERY) 304 < start) { 305 try { 306 if (DEBUG_WALLPAPER) Slog.v(TAG, 307 "Waiting for offset complete..."); 308 mService.mWindowMap.wait(WALLPAPER_TIMEOUT); 309 } catch (InterruptedException e) { 310 } 311 if (DEBUG_WALLPAPER) Slog.v(TAG, "Offset complete!"); 312 if ((start + WALLPAPER_TIMEOUT) < SystemClock.uptimeMillis()) { 313 Slog.i(TAG, "Timeout waiting for wallpaper to offset: " 314 + wallpaperWin); 315 mLastWallpaperTimeoutTime = start; 316 } 317 } 318 mWaitingOnWallpaper = null; 319 } 320 } 321 } catch (RemoteException e) { 322 } 323 } 324 325 return changed; 326 } 327 328 void setWindowWallpaperPosition( 329 WindowState window, float x, float y, float xStep, float yStep) { 330 if (window.mWallpaperX != x || window.mWallpaperY != y) { 331 window.mWallpaperX = x; 332 window.mWallpaperY = y; 333 window.mWallpaperXStep = xStep; 334 window.mWallpaperYStep = yStep; 335 updateWallpaperOffsetLocked(window, true); 336 } 337 } 338 339 void setWindowWallpaperDisplayOffset(WindowState window, int x, int y) { 340 if (window.mWallpaperDisplayOffsetX != x || window.mWallpaperDisplayOffsetY != y) { 341 window.mWallpaperDisplayOffsetX = x; 342 window.mWallpaperDisplayOffsetY = y; 343 updateWallpaperOffsetLocked(window, true); 344 } 345 } 346 347 Bundle sendWindowWallpaperCommand( 348 WindowState window, String action, int x, int y, int z, Bundle extras, boolean sync) { 349 if (window == mWallpaperTarget 350 || window == mLowerWallpaperTarget 351 || window == mUpperWallpaperTarget) { 352 boolean doWait = sync; 353 for (int curTokenNdx = mWallpaperTokens.size() - 1; curTokenNdx >= 0; curTokenNdx--) { 354 final WindowList windows = mWallpaperTokens.get(curTokenNdx).windows; 355 for (int wallpaperNdx = windows.size() - 1; wallpaperNdx >= 0; wallpaperNdx--) { 356 WindowState wallpaper = windows.get(wallpaperNdx); 357 try { 358 wallpaper.mClient.dispatchWallpaperCommand(action, 359 x, y, z, extras, sync); 360 // We only want to be synchronous with one wallpaper. 361 sync = false; 362 } catch (RemoteException e) { 363 } 364 } 365 } 366 367 if (doWait) { 368 // TODO: Need to wait for result. 369 } 370 } 371 372 return null; 373 } 374 375 void updateWallpaperOffsetLocked(WindowState changingTarget, boolean sync) { 376 final DisplayContent displayContent = changingTarget.getDisplayContent(); 377 if (displayContent == null) { 378 return; 379 } 380 final DisplayInfo displayInfo = displayContent.getDisplayInfo(); 381 final int dw = displayInfo.logicalWidth; 382 final int dh = displayInfo.logicalHeight; 383 384 WindowState target = mWallpaperTarget; 385 if (target != null) { 386 if (target.mWallpaperX >= 0) { 387 mLastWallpaperX = target.mWallpaperX; 388 } else if (changingTarget.mWallpaperX >= 0) { 389 mLastWallpaperX = changingTarget.mWallpaperX; 390 } 391 if (target.mWallpaperY >= 0) { 392 mLastWallpaperY = target.mWallpaperY; 393 } else if (changingTarget.mWallpaperY >= 0) { 394 mLastWallpaperY = changingTarget.mWallpaperY; 395 } 396 if (target.mWallpaperDisplayOffsetX != Integer.MIN_VALUE) { 397 mLastWallpaperDisplayOffsetX = target.mWallpaperDisplayOffsetX; 398 } else if (changingTarget.mWallpaperDisplayOffsetX != Integer.MIN_VALUE) { 399 mLastWallpaperDisplayOffsetX = changingTarget.mWallpaperDisplayOffsetX; 400 } 401 if (target.mWallpaperDisplayOffsetY != Integer.MIN_VALUE) { 402 mLastWallpaperDisplayOffsetY = target.mWallpaperDisplayOffsetY; 403 } else if (changingTarget.mWallpaperDisplayOffsetY != Integer.MIN_VALUE) { 404 mLastWallpaperDisplayOffsetY = changingTarget.mWallpaperDisplayOffsetY; 405 } 406 if (target.mWallpaperXStep >= 0) { 407 mLastWallpaperXStep = target.mWallpaperXStep; 408 } else if (changingTarget.mWallpaperXStep >= 0) { 409 mLastWallpaperXStep = changingTarget.mWallpaperXStep; 410 } 411 if (target.mWallpaperYStep >= 0) { 412 mLastWallpaperYStep = target.mWallpaperYStep; 413 } else if (changingTarget.mWallpaperYStep >= 0) { 414 mLastWallpaperYStep = changingTarget.mWallpaperYStep; 415 } 416 } 417 418 for (int curTokenNdx = mWallpaperTokens.size() - 1; curTokenNdx >= 0; curTokenNdx--) { 419 WindowList windows = mWallpaperTokens.get(curTokenNdx).windows; 420 for (int wallpaperNdx = windows.size() - 1; wallpaperNdx >= 0; wallpaperNdx--) { 421 WindowState wallpaper = windows.get(wallpaperNdx); 422 if (updateWallpaperOffset(wallpaper, dw, dh, sync)) { 423 WindowStateAnimator winAnimator = wallpaper.mWinAnimator; 424 winAnimator.computeShownFrameLocked(); 425 // No need to lay out the windows - we can just set the wallpaper position 426 // directly. 427 winAnimator.setWallpaperOffset(wallpaper.mShownPosition); 428 // We only want to be synchronous with one wallpaper. 429 sync = false; 430 } 431 } 432 } 433 } 434 435 void clearLastWallpaperTimeoutTime() { 436 mLastWallpaperTimeoutTime = 0; 437 } 438 439 void wallpaperCommandComplete(IBinder window) { 440 if (mWaitingOnWallpaper != null && 441 mWaitingOnWallpaper.mClient.asBinder() == window) { 442 mWaitingOnWallpaper = null; 443 mService.mWindowMap.notifyAll(); 444 } 445 } 446 447 void wallpaperOffsetsComplete(IBinder window) { 448 if (mWaitingOnWallpaper != null && 449 mWaitingOnWallpaper.mClient.asBinder() == window) { 450 mWaitingOnWallpaper = null; 451 mService.mWindowMap.notifyAll(); 452 } 453 } 454 455 int getAnimLayerAdjustment() { 456 return mWallpaperAnimLayerAdjustment; 457 } 458 459 void setAnimLayerAdjustment(WindowState win, int adj) { 460 if (win != mWallpaperTarget || mLowerWallpaperTarget != null) { 461 return; 462 } 463 464 if (DEBUG_LAYERS || DEBUG_WALLPAPER) Slog.v(TAG, "Setting wallpaper layer adj to " + adj); 465 mWallpaperAnimLayerAdjustment = adj; 466 for (int i = mWallpaperTokens.size() - 1; i >= 0; i--) { 467 WindowList windows = mWallpaperTokens.get(i).windows; 468 for (int j = windows.size() - 1; j >= 0; j--) { 469 WindowState wallpaper = windows.get(j); 470 wallpaper.mWinAnimator.mAnimLayer = wallpaper.mLayer + adj; 471 if (DEBUG_LAYERS || DEBUG_WALLPAPER) Slog.v(TAG, "setWallpaper win " 472 + wallpaper + " anim layer: " + wallpaper.mWinAnimator.mAnimLayer); 473 } 474 } 475 } 476 477 private void findWallpaperTarget(WindowList windows, FindWallpaperTargetResult result) { 478 final WindowAnimator winAnimator = mService.mAnimator; 479 result.reset(); 480 WindowState w = null; 481 int windowDetachedI = -1; 482 boolean resetTopWallpaper = false; 483 boolean inFreeformSpace = false; 484 boolean replacing = false; 485 boolean keyguardGoingAwayWithWallpaper = false; 486 487 for (int i = windows.size() - 1; i >= 0; i--) { 488 w = windows.get(i); 489 if ((w.mAttrs.type == TYPE_WALLPAPER)) { 490 if (result.topWallpaper == null || resetTopWallpaper) { 491 result.setTopWallpaper(w, i); 492 resetTopWallpaper = false; 493 } 494 continue; 495 } 496 resetTopWallpaper = true; 497 if (w != winAnimator.mWindowDetachedWallpaper && w.mAppToken != null) { 498 // If this window's app token is hidden and not animating, 499 // it is of no interest to us. 500 if (w.mAppToken.hidden && w.mAppToken.mAppAnimator.animation == null) { 501 if (DEBUG_WALLPAPER) Slog.v(TAG, 502 "Skipping hidden and not animating token: " + w); 503 continue; 504 } 505 } 506 if (DEBUG_WALLPAPER) Slog.v(TAG, "Win #" + i + " " + w + ": isOnScreen=" 507 + w.isOnScreen() + " mDrawState=" + w.mWinAnimator.mDrawState); 508 509 if (!inFreeformSpace) { 510 TaskStack stack = w.getStack(); 511 inFreeformSpace = stack != null && stack.mStackId == FREEFORM_WORKSPACE_STACK_ID; 512 } 513 514 replacing |= w.mWillReplaceWindow; 515 keyguardGoingAwayWithWallpaper |= (w.mAppToken != null 516 && w.mWinAnimator.mKeyguardGoingAwayWithWallpaper); 517 518 final boolean hasWallpaper = (w.mAttrs.flags & FLAG_SHOW_WALLPAPER) != 0; 519 if (hasWallpaper && w.isOnScreen() && (mWallpaperTarget == w || w.isDrawFinishedLw())) { 520 if (DEBUG_WALLPAPER) Slog.v(TAG, "Found wallpaper target: #" + i + "=" + w); 521 result.setWallpaperTarget(w, i); 522 if (w == mWallpaperTarget && w.mWinAnimator.isAnimationSet()) { 523 // The current wallpaper target is animating, so we'll look behind it for 524 // another possible target and figure out what is going on later. 525 if (DEBUG_WALLPAPER) Slog.v(TAG, 526 "Win " + w + ": token animating, looking behind."); 527 continue; 528 } 529 break; 530 } else if (w == winAnimator.mWindowDetachedWallpaper) { 531 windowDetachedI = i; 532 } 533 } 534 535 if (result.wallpaperTarget != null) { 536 return; 537 } 538 539 if (windowDetachedI >= 0) { 540 if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, 541 "Found animating detached wallpaper activity: #" + windowDetachedI + "=" + w); 542 result.setWallpaperTarget(w, windowDetachedI); 543 } else if (inFreeformSpace || (replacing && mWallpaperTarget != null)) { 544 // In freeform mode we set the wallpaper as its own target, so we don't need an 545 // additional window to make it visible. When we are replacing a window and there was 546 // wallpaper before replacement, we want to keep the window until the new windows fully 547 // appear and can determine the visibility, to avoid flickering. 548 result.setWallpaperTarget(result.topWallpaper, result.topWallpaperIndex); 549 550 } else if (keyguardGoingAwayWithWallpaper) { 551 // If the app is executing an animation because the keyguard is going away (and the 552 // keyguard was showing the wallpaper) keep the wallpaper during the animation so it 553 // doesn't flicker out by having it be its own target. 554 result.setWallpaperTarget(result.topWallpaper, result.topWallpaperIndex); 555 } 556 } 557 558 private boolean updateWallpaperWindowsTarget( 559 WindowList windows, FindWallpaperTargetResult result) { 560 561 boolean targetChanged = false; 562 WindowState wallpaperTarget = result.wallpaperTarget; 563 int wallpaperTargetIndex = result.wallpaperTargetIndex; 564 565 if (mWallpaperTarget != wallpaperTarget 566 && (mLowerWallpaperTarget == null || mLowerWallpaperTarget != wallpaperTarget)) { 567 if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, 568 "New wallpaper target: " + wallpaperTarget + " oldTarget: " + mWallpaperTarget); 569 570 mLowerWallpaperTarget = null; 571 mUpperWallpaperTarget = null; 572 573 WindowState oldW = mWallpaperTarget; 574 mWallpaperTarget = wallpaperTarget; 575 targetChanged = true; 576 577 // Now what is happening... if the current and new targets are animating, 578 // then we are in our super special mode! 579 if (wallpaperTarget != null && oldW != null) { 580 boolean oldAnim = oldW.isAnimatingLw(); 581 boolean foundAnim = wallpaperTarget.isAnimatingLw(); 582 if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, 583 "New animation: " + foundAnim + " old animation: " + oldAnim); 584 if (foundAnim && oldAnim) { 585 int oldI = windows.indexOf(oldW); 586 if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, 587 "New i: " + wallpaperTargetIndex + " old i: " + oldI); 588 if (oldI >= 0) { 589 final boolean newTargetHidden = 590 wallpaperTarget.mAppToken != null && wallpaperTarget.mAppToken.hiddenRequested; 591 final boolean oldTargetHidden = 592 oldW.mAppToken != null && oldW.mAppToken.hiddenRequested; 593 if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, "Animating wallpapers:" 594 + " old#" + oldI + "=" + oldW + " hidden=" + oldTargetHidden 595 + " new#" + wallpaperTargetIndex + "=" + wallpaperTarget 596 + " hidden=" + newTargetHidden); 597 598 // Set the upper and lower wallpaper targets correctly, 599 // and make sure that we are positioning the wallpaper below the lower. 600 if (wallpaperTargetIndex > oldI) { 601 // The new target is on top of the old one. 602 if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, 603 "Found target above old target."); 604 mUpperWallpaperTarget = wallpaperTarget; 605 mLowerWallpaperTarget = oldW; 606 607 wallpaperTarget = oldW; 608 wallpaperTargetIndex = oldI; 609 } else { 610 // The new target is below the old one. 611 if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, 612 "Found target below old target."); 613 mUpperWallpaperTarget = oldW; 614 mLowerWallpaperTarget = wallpaperTarget; 615 } 616 if (newTargetHidden && !oldTargetHidden) { 617 if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, 618 "Old wallpaper still the target."); 619 // Use the old target if new target is hidden but old target 620 // is not. If they're both hidden, still use the new target. 621 mWallpaperTarget = oldW; 622 } else if (newTargetHidden == oldTargetHidden 623 && !mService.mOpeningApps.contains(wallpaperTarget.mAppToken) 624 && (mService.mOpeningApps.contains(oldW.mAppToken) 625 || mService.mClosingApps.contains(oldW.mAppToken))) { 626 // If they're both hidden (or both not hidden), prefer the one that's 627 // currently in opening or closing app list, this allows transition 628 // selection logic to better determine the wallpaper status of 629 // opening/closing apps. 630 mWallpaperTarget = oldW; 631 } 632 } 633 } 634 } 635 636 } else if (mLowerWallpaperTarget != null) { 637 // Is it time to stop animating? 638 if (!mLowerWallpaperTarget.isAnimatingLw() || !mUpperWallpaperTarget.isAnimatingLw()) { 639 if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, "No longer animating wallpaper targets!"); 640 mLowerWallpaperTarget = null; 641 mUpperWallpaperTarget = null; 642 mWallpaperTarget = wallpaperTarget; 643 targetChanged = true; 644 } 645 } 646 647 result.setWallpaperTarget(wallpaperTarget, wallpaperTargetIndex); 648 return targetChanged; 649 } 650 651 boolean updateWallpaperWindowsTargetByLayer( 652 WindowList windows, FindWallpaperTargetResult result) { 653 654 WindowState wallpaperTarget = result.wallpaperTarget; 655 int wallpaperTargetIndex = result.wallpaperTargetIndex; 656 boolean visible = wallpaperTarget != null; 657 658 if (visible) { 659 // The window is visible to the compositor...but is it visible to the user? 660 // That is what the wallpaper cares about. 661 visible = isWallpaperVisible(wallpaperTarget); 662 if (DEBUG_WALLPAPER) Slog.v(TAG, "Wallpaper visibility: " + visible); 663 664 // If the wallpaper target is animating, we may need to copy its layer adjustment. 665 // Only do this if we are not transferring between two wallpaper targets. 666 mWallpaperAnimLayerAdjustment = 667 (mLowerWallpaperTarget == null && wallpaperTarget.mAppToken != null) 668 ? wallpaperTarget.mAppToken.mAppAnimator.animLayerAdjustment : 0; 669 670 final int maxLayer = (mService.mPolicy.getMaxWallpaperLayer() * TYPE_LAYER_MULTIPLIER) 671 + TYPE_LAYER_OFFSET; 672 673 // Now w is the window we are supposed to be behind... but we 674 // need to be sure to also be behind any of its attached windows, 675 // AND any starting window associated with it, AND below the 676 // maximum layer the policy allows for wallpapers. 677 while (wallpaperTargetIndex > 0) { 678 WindowState wb = windows.get(wallpaperTargetIndex - 1); 679 if (wb.mBaseLayer < maxLayer && 680 wb.mAttachedWindow != wallpaperTarget && 681 (wallpaperTarget.mAttachedWindow == null || 682 wb.mAttachedWindow != wallpaperTarget.mAttachedWindow) && 683 (wb.mAttrs.type != TYPE_APPLICATION_STARTING 684 || wallpaperTarget.mToken == null 685 || wb.mToken != wallpaperTarget.mToken)) { 686 // This window is not related to the previous one in any 687 // interesting way, so stop here. 688 break; 689 } 690 wallpaperTarget = wb; 691 wallpaperTargetIndex--; 692 } 693 } else { 694 if (DEBUG_WALLPAPER) Slog.v(TAG, "No wallpaper target"); 695 } 696 697 result.setWallpaperTarget(wallpaperTarget, wallpaperTargetIndex); 698 return visible; 699 } 700 701 boolean updateWallpaperWindowsPlacement(WindowList windows, 702 WindowState wallpaperTarget, int wallpaperTargetIndex, boolean visible) { 703 704 // TODO(multidisplay): Wallpapers on main screen only. 705 final DisplayInfo displayInfo = mService.getDefaultDisplayContentLocked().getDisplayInfo(); 706 final int dw = displayInfo.logicalWidth; 707 final int dh = displayInfo.logicalHeight; 708 709 // Start stepping backwards from here, ensuring that our wallpaper windows 710 // are correctly placed. 711 boolean changed = false; 712 for (int curTokenNdx = mWallpaperTokens.size() - 1; curTokenNdx >= 0; curTokenNdx--) { 713 WindowToken token = mWallpaperTokens.get(curTokenNdx); 714 if (token.hidden == visible) { 715 if (DEBUG_WALLPAPER_LIGHT) Slog.d(TAG, 716 "Wallpaper token " + token + " hidden=" + !visible); 717 token.hidden = !visible; 718 // Need to do a layout to ensure the wallpaper now has the correct size. 719 mService.getDefaultDisplayContentLocked().layoutNeeded = true; 720 } 721 722 final WindowList tokenWindows = token.windows; 723 for (int wallpaperNdx = tokenWindows.size() - 1; wallpaperNdx >= 0; wallpaperNdx--) { 724 WindowState wallpaper = tokenWindows.get(wallpaperNdx); 725 726 if (visible) { 727 updateWallpaperOffset(wallpaper, dw, dh, false); 728 } 729 730 // First, make sure the client has the current visibility state. 731 dispatchWallpaperVisibility(wallpaper, visible); 732 733 wallpaper.mWinAnimator.mAnimLayer = 734 wallpaper.mLayer + mWallpaperAnimLayerAdjustment; 735 if (DEBUG_LAYERS || DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, "adjustWallpaper win " 736 + wallpaper + " anim layer: " + wallpaper.mWinAnimator.mAnimLayer); 737 738 // First, if this window is at the current index, then all is well. 739 if (wallpaper == wallpaperTarget) { 740 wallpaperTargetIndex--; 741 wallpaperTarget = wallpaperTargetIndex > 0 742 ? windows.get(wallpaperTargetIndex - 1) : null; 743 continue; 744 } 745 746 // The window didn't match... the current wallpaper window, 747 // wherever it is, is in the wrong place, so make sure it is not in the list. 748 int oldIndex = windows.indexOf(wallpaper); 749 if (oldIndex >= 0) { 750 if (DEBUG_WINDOW_MOVEMENT) Slog.v(TAG, 751 "Wallpaper removing at " + oldIndex + ": " + wallpaper); 752 windows.remove(oldIndex); 753 mService.mWindowsChanged = true; 754 if (oldIndex < wallpaperTargetIndex) { 755 wallpaperTargetIndex--; 756 } 757 } 758 759 // Now stick it in. For apps over wallpaper keep the wallpaper at the bottommost 760 // layer. For keyguard over wallpaper put the wallpaper under the keyguard. 761 int insertionIndex = 0; 762 if (visible && wallpaperTarget != null) { 763 final int type = wallpaperTarget.mAttrs.type; 764 final int privateFlags = wallpaperTarget.mAttrs.privateFlags; 765 if ((privateFlags & PRIVATE_FLAG_KEYGUARD) != 0 766 || type == TYPE_KEYGUARD_SCRIM) { 767 insertionIndex = windows.indexOf(wallpaperTarget); 768 } 769 } 770 if (DEBUG_WALLPAPER_LIGHT || DEBUG_WINDOW_MOVEMENT 771 || (DEBUG_ADD_REMOVE && oldIndex != insertionIndex)) Slog.v(TAG, 772 "Moving wallpaper " + wallpaper 773 + " from " + oldIndex + " to " + insertionIndex); 774 775 windows.add(insertionIndex, wallpaper); 776 mService.mWindowsChanged = true; 777 changed = true; 778 } 779 } 780 781 return changed; 782 } 783 784 boolean adjustWallpaperWindows() { 785 mService.mWindowPlacerLocked.mWallpaperMayChange = false; 786 787 final WindowList windows = mService.getDefaultWindowListLocked(); 788 // First find top-most window that has asked to be on top of the wallpaper; 789 // all wallpapers go behind it. 790 findWallpaperTarget(windows, mFindResults); 791 final boolean targetChanged = updateWallpaperWindowsTarget(windows, mFindResults); 792 final boolean visible = updateWallpaperWindowsTargetByLayer(windows, mFindResults); 793 WindowState wallpaperTarget = mFindResults.wallpaperTarget; 794 int wallpaperTargetIndex = mFindResults.wallpaperTargetIndex; 795 796 if (wallpaperTarget == null && mFindResults.topWallpaper != null) { 797 // There is no wallpaper target, so it goes at the bottom. 798 // We will assume it is the same place as last time, if known. 799 wallpaperTarget = mFindResults.topWallpaper; 800 wallpaperTargetIndex = mFindResults.topWallpaperIndex + 1; 801 } else { 802 // Okay i is the position immediately above the wallpaper. 803 // Look at what is below it for later. 804 wallpaperTarget = wallpaperTargetIndex > 0 805 ? windows.get(wallpaperTargetIndex - 1) : null; 806 } 807 808 if (visible) { 809 if (mWallpaperTarget.mWallpaperX >= 0) { 810 mLastWallpaperX = mWallpaperTarget.mWallpaperX; 811 mLastWallpaperXStep = mWallpaperTarget.mWallpaperXStep; 812 } 813 if (mWallpaperTarget.mWallpaperY >= 0) { 814 mLastWallpaperY = mWallpaperTarget.mWallpaperY; 815 mLastWallpaperYStep = mWallpaperTarget.mWallpaperYStep; 816 } 817 if (mWallpaperTarget.mWallpaperDisplayOffsetX != Integer.MIN_VALUE) { 818 mLastWallpaperDisplayOffsetX = mWallpaperTarget.mWallpaperDisplayOffsetX; 819 } 820 if (mWallpaperTarget.mWallpaperDisplayOffsetY != Integer.MIN_VALUE) { 821 mLastWallpaperDisplayOffsetY = mWallpaperTarget.mWallpaperDisplayOffsetY; 822 } 823 } 824 825 final boolean changed = updateWallpaperWindowsPlacement( 826 windows, wallpaperTarget, wallpaperTargetIndex, visible); 827 828 if (targetChanged && DEBUG_WALLPAPER_LIGHT) Slog.d(TAG, "New wallpaper: target=" 829 + mWallpaperTarget + " lower=" + mLowerWallpaperTarget + " upper=" 830 + mUpperWallpaperTarget); 831 832 return changed; 833 } 834 835 boolean processWallpaperDrawPendingTimeout() { 836 if (mWallpaperDrawState == WALLPAPER_DRAW_PENDING) { 837 mWallpaperDrawState = WALLPAPER_DRAW_TIMEOUT; 838 if (DEBUG_APP_TRANSITIONS || DEBUG_WALLPAPER) Slog.v(TAG, 839 "*** WALLPAPER DRAW TIMEOUT"); 840 return true; 841 } 842 return false; 843 } 844 845 boolean wallpaperTransitionReady() { 846 boolean transitionReady = true; 847 boolean wallpaperReady = true; 848 for (int curTokenIndex = mWallpaperTokens.size() - 1; 849 curTokenIndex >= 0 && wallpaperReady; curTokenIndex--) { 850 WindowToken token = mWallpaperTokens.get(curTokenIndex); 851 for (int curWallpaperIndex = token.windows.size() - 1; curWallpaperIndex >= 0; 852 curWallpaperIndex--) { 853 WindowState wallpaper = token.windows.get(curWallpaperIndex); 854 if (wallpaper.mWallpaperVisible && !wallpaper.isDrawnLw()) { 855 // We've told this wallpaper to be visible, but it is not drawn yet 856 wallpaperReady = false; 857 if (mWallpaperDrawState != WALLPAPER_DRAW_TIMEOUT) { 858 // wait for this wallpaper until it is drawn or timeout 859 transitionReady = false; 860 } 861 if (mWallpaperDrawState == WALLPAPER_DRAW_NORMAL) { 862 mWallpaperDrawState = WALLPAPER_DRAW_PENDING; 863 mService.mH.removeMessages(WALLPAPER_DRAW_PENDING_TIMEOUT); 864 mService.mH.sendEmptyMessageDelayed(WALLPAPER_DRAW_PENDING_TIMEOUT, 865 WALLPAPER_DRAW_PENDING_TIMEOUT_DURATION); 866 } 867 if (DEBUG_APP_TRANSITIONS || DEBUG_WALLPAPER) Slog.v(TAG, 868 "Wallpaper should be visible but has not been drawn yet. " + 869 "mWallpaperDrawState=" + mWallpaperDrawState); 870 break; 871 } 872 } 873 } 874 if (wallpaperReady) { 875 mWallpaperDrawState = WALLPAPER_DRAW_NORMAL; 876 mService.mH.removeMessages(WALLPAPER_DRAW_PENDING_TIMEOUT); 877 } 878 879 return transitionReady; 880 } 881 882 void addWallpaperToken(WindowToken token) { 883 mWallpaperTokens.add(token); 884 } 885 886 void removeWallpaperToken(WindowToken token) { 887 mWallpaperTokens.remove(token); 888 } 889 890 void dump(PrintWriter pw, String prefix) { 891 pw.print(prefix); pw.print("mWallpaperTarget="); pw.println(mWallpaperTarget); 892 if (mLowerWallpaperTarget != null || mUpperWallpaperTarget != null) { 893 pw.print(prefix); pw.print("mLowerWallpaperTarget="); pw.println(mLowerWallpaperTarget); 894 pw.print(prefix); pw.print("mUpperWallpaperTarget="); pw.println(mUpperWallpaperTarget); 895 } 896 pw.print(prefix); pw.print("mLastWallpaperX="); pw.print(mLastWallpaperX); 897 pw.print(" mLastWallpaperY="); pw.println(mLastWallpaperY); 898 if (mLastWallpaperDisplayOffsetX != Integer.MIN_VALUE 899 || mLastWallpaperDisplayOffsetY != Integer.MIN_VALUE) { 900 pw.print(prefix); 901 pw.print("mLastWallpaperDisplayOffsetX="); pw.print(mLastWallpaperDisplayOffsetX); 902 pw.print(" mLastWallpaperDisplayOffsetY="); pw.println(mLastWallpaperDisplayOffsetY); 903 } 904 } 905 906 void dumpTokens(PrintWriter pw, String prefix, boolean dumpAll) { 907 if (!mWallpaperTokens.isEmpty()) { 908 pw.println(); 909 pw.print(prefix); pw.println("Wallpaper tokens:"); 910 for (int i = mWallpaperTokens.size() - 1; i >= 0; i--) { 911 WindowToken token = mWallpaperTokens.get(i); 912 pw.print(prefix); pw.print("Wallpaper #"); pw.print(i); 913 pw.print(' '); pw.print(token); 914 if (dumpAll) { 915 pw.println(':'); 916 token.dump(pw, " "); 917 } else { 918 pw.println(); 919 } 920 } 921 } 922 } 923 924 /** Helper class for storing the results of a wallpaper target find operation. */ 925 final private static class FindWallpaperTargetResult { 926 int topWallpaperIndex = 0; 927 WindowState topWallpaper = null; 928 int wallpaperTargetIndex = 0; 929 WindowState wallpaperTarget = null; 930 931 void setTopWallpaper(WindowState win, int index) { 932 topWallpaper = win; 933 topWallpaperIndex = index; 934 } 935 936 void setWallpaperTarget(WindowState win, int index) { 937 wallpaperTarget = win; 938 wallpaperTargetIndex = index; 939 } 940 941 void reset() { 942 topWallpaperIndex = 0; 943 topWallpaper = null; 944 wallpaperTargetIndex = 0; 945 wallpaperTarget = null; 946 } 947 } 948 } 949
