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 float wpx = mLastWallpaperX >= 0 ? mLastWallpaperX : 0.5f; 250 float wpxs = mLastWallpaperXStep >= 0 ? mLastWallpaperXStep : -1.0f; 251 int availw = wallpaperWin.mFrame.right - wallpaperWin.mFrame.left - dw; 252 int offset = availw > 0 ? -(int)(availw * wpx + .5f) : 0; 253 if (mLastWallpaperDisplayOffsetX != Integer.MIN_VALUE) { 254 offset += mLastWallpaperDisplayOffsetX; 255 } 256 boolean changed = wallpaperWin.mXOffset != offset; 257 if (changed) { 258 if (DEBUG_WALLPAPER) Slog.v(TAG, "Update wallpaper " + wallpaperWin + " x: " + offset); 259 wallpaperWin.mXOffset = offset; 260 } 261 if (wallpaperWin.mWallpaperX != wpx || wallpaperWin.mWallpaperXStep != wpxs) { 262 wallpaperWin.mWallpaperX = wpx; 263 wallpaperWin.mWallpaperXStep = wpxs; 264 rawChanged = true; 265 } 266 267 float wpy = mLastWallpaperY >= 0 ? mLastWallpaperY : 0.5f; 268 float wpys = mLastWallpaperYStep >= 0 ? mLastWallpaperYStep : -1.0f; 269 int availh = wallpaperWin.mFrame.bottom - wallpaperWin.mFrame.top - dh; 270 offset = availh > 0 ? -(int)(availh * wpy + .5f) : 0; 271 if (mLastWallpaperDisplayOffsetY != Integer.MIN_VALUE) { 272 offset += mLastWallpaperDisplayOffsetY; 273 } 274 if (wallpaperWin.mYOffset != offset) { 275 if (DEBUG_WALLPAPER) Slog.v(TAG, "Update wallpaper " + wallpaperWin + " y: " + offset); 276 changed = true; 277 wallpaperWin.mYOffset = offset; 278 } 279 if (wallpaperWin.mWallpaperY != wpy || wallpaperWin.mWallpaperYStep != wpys) { 280 wallpaperWin.mWallpaperY = wpy; 281 wallpaperWin.mWallpaperYStep = wpys; 282 rawChanged = true; 283 } 284 285 if (rawChanged && (wallpaperWin.mAttrs.privateFlags & 286 WindowManager.LayoutParams.PRIVATE_FLAG_WANTS_OFFSET_NOTIFICATIONS) != 0) { 287 try { 288 if (DEBUG_WALLPAPER) Slog.v(TAG, "Report new wp offset " 289 + wallpaperWin + " x=" + wallpaperWin.mWallpaperX 290 + " y=" + wallpaperWin.mWallpaperY); 291 if (sync) { 292 mWaitingOnWallpaper = wallpaperWin; 293 } 294 wallpaperWin.mClient.dispatchWallpaperOffsets( 295 wallpaperWin.mWallpaperX, wallpaperWin.mWallpaperY, 296 wallpaperWin.mWallpaperXStep, wallpaperWin.mWallpaperYStep, sync); 297 if (sync) { 298 if (mWaitingOnWallpaper != null) { 299 long start = SystemClock.uptimeMillis(); 300 if ((mLastWallpaperTimeoutTime + WALLPAPER_TIMEOUT_RECOVERY) 301 < start) { 302 try { 303 if (DEBUG_WALLPAPER) Slog.v(TAG, 304 "Waiting for offset complete..."); 305 mService.mWindowMap.wait(WALLPAPER_TIMEOUT); 306 } catch (InterruptedException e) { 307 } 308 if (DEBUG_WALLPAPER) Slog.v(TAG, "Offset complete!"); 309 if ((start + WALLPAPER_TIMEOUT) < SystemClock.uptimeMillis()) { 310 Slog.i(TAG, "Timeout waiting for wallpaper to offset: " 311 + wallpaperWin); 312 mLastWallpaperTimeoutTime = start; 313 } 314 } 315 mWaitingOnWallpaper = null; 316 } 317 } 318 } catch (RemoteException e) { 319 } 320 } 321 322 return changed; 323 } 324 325 void setWindowWallpaperPosition( 326 WindowState window, float x, float y, float xStep, float yStep) { 327 if (window.mWallpaperX != x || window.mWallpaperY != y) { 328 window.mWallpaperX = x; 329 window.mWallpaperY = y; 330 window.mWallpaperXStep = xStep; 331 window.mWallpaperYStep = yStep; 332 updateWallpaperOffsetLocked(window, true); 333 } 334 } 335 336 void setWindowWallpaperDisplayOffset(WindowState window, int x, int y) { 337 if (window.mWallpaperDisplayOffsetX != x || window.mWallpaperDisplayOffsetY != y) { 338 window.mWallpaperDisplayOffsetX = x; 339 window.mWallpaperDisplayOffsetY = y; 340 updateWallpaperOffsetLocked(window, true); 341 } 342 } 343 344 Bundle sendWindowWallpaperCommand( 345 WindowState window, String action, int x, int y, int z, Bundle extras, boolean sync) { 346 if (window == mWallpaperTarget 347 || window == mLowerWallpaperTarget 348 || window == mUpperWallpaperTarget) { 349 boolean doWait = sync; 350 for (int curTokenNdx = mWallpaperTokens.size() - 1; curTokenNdx >= 0; curTokenNdx--) { 351 final WindowList windows = mWallpaperTokens.get(curTokenNdx).windows; 352 for (int wallpaperNdx = windows.size() - 1; wallpaperNdx >= 0; wallpaperNdx--) { 353 WindowState wallpaper = windows.get(wallpaperNdx); 354 try { 355 wallpaper.mClient.dispatchWallpaperCommand(action, 356 x, y, z, extras, sync); 357 // We only want to be synchronous with one wallpaper. 358 sync = false; 359 } catch (RemoteException e) { 360 } 361 } 362 } 363 364 if (doWait) { 365 // TODO: Need to wait for result. 366 } 367 } 368 369 return null; 370 } 371 372 void updateWallpaperOffsetLocked(WindowState changingTarget, boolean sync) { 373 final DisplayContent displayContent = changingTarget.getDisplayContent(); 374 if (displayContent == null) { 375 return; 376 } 377 final DisplayInfo displayInfo = displayContent.getDisplayInfo(); 378 final int dw = displayInfo.logicalWidth; 379 final int dh = displayInfo.logicalHeight; 380 381 WindowState target = mWallpaperTarget; 382 if (target != null) { 383 if (target.mWallpaperX >= 0) { 384 mLastWallpaperX = target.mWallpaperX; 385 } else if (changingTarget.mWallpaperX >= 0) { 386 mLastWallpaperX = changingTarget.mWallpaperX; 387 } 388 if (target.mWallpaperY >= 0) { 389 mLastWallpaperY = target.mWallpaperY; 390 } else if (changingTarget.mWallpaperY >= 0) { 391 mLastWallpaperY = changingTarget.mWallpaperY; 392 } 393 if (target.mWallpaperDisplayOffsetX != Integer.MIN_VALUE) { 394 mLastWallpaperDisplayOffsetX = target.mWallpaperDisplayOffsetX; 395 } else if (changingTarget.mWallpaperDisplayOffsetX != Integer.MIN_VALUE) { 396 mLastWallpaperDisplayOffsetX = changingTarget.mWallpaperDisplayOffsetX; 397 } 398 if (target.mWallpaperDisplayOffsetY != Integer.MIN_VALUE) { 399 mLastWallpaperDisplayOffsetY = target.mWallpaperDisplayOffsetY; 400 } else if (changingTarget.mWallpaperDisplayOffsetY != Integer.MIN_VALUE) { 401 mLastWallpaperDisplayOffsetY = changingTarget.mWallpaperDisplayOffsetY; 402 } 403 if (target.mWallpaperXStep >= 0) { 404 mLastWallpaperXStep = target.mWallpaperXStep; 405 } else if (changingTarget.mWallpaperXStep >= 0) { 406 mLastWallpaperXStep = changingTarget.mWallpaperXStep; 407 } 408 if (target.mWallpaperYStep >= 0) { 409 mLastWallpaperYStep = target.mWallpaperYStep; 410 } else if (changingTarget.mWallpaperYStep >= 0) { 411 mLastWallpaperYStep = changingTarget.mWallpaperYStep; 412 } 413 } 414 415 for (int curTokenNdx = mWallpaperTokens.size() - 1; curTokenNdx >= 0; curTokenNdx--) { 416 WindowList windows = mWallpaperTokens.get(curTokenNdx).windows; 417 for (int wallpaperNdx = windows.size() - 1; wallpaperNdx >= 0; wallpaperNdx--) { 418 WindowState wallpaper = windows.get(wallpaperNdx); 419 if (updateWallpaperOffset(wallpaper, dw, dh, sync)) { 420 WindowStateAnimator winAnimator = wallpaper.mWinAnimator; 421 winAnimator.computeShownFrameLocked(); 422 // No need to lay out the windows - we can just set the wallpaper position 423 // directly. 424 winAnimator.setWallpaperOffset(wallpaper.mShownPosition); 425 // We only want to be synchronous with one wallpaper. 426 sync = false; 427 } 428 } 429 } 430 } 431 432 void clearLastWallpaperTimeoutTime() { 433 mLastWallpaperTimeoutTime = 0; 434 } 435 436 void wallpaperCommandComplete(IBinder window) { 437 if (mWaitingOnWallpaper != null && 438 mWaitingOnWallpaper.mClient.asBinder() == window) { 439 mWaitingOnWallpaper = null; 440 mService.mWindowMap.notifyAll(); 441 } 442 } 443 444 void wallpaperOffsetsComplete(IBinder window) { 445 if (mWaitingOnWallpaper != null && 446 mWaitingOnWallpaper.mClient.asBinder() == window) { 447 mWaitingOnWallpaper = null; 448 mService.mWindowMap.notifyAll(); 449 } 450 } 451 452 int getAnimLayerAdjustment() { 453 return mWallpaperAnimLayerAdjustment; 454 } 455 456 void setAnimLayerAdjustment(WindowState win, int adj) { 457 if (win != mWallpaperTarget || mLowerWallpaperTarget != null) { 458 return; 459 } 460 461 if (DEBUG_LAYERS || DEBUG_WALLPAPER) Slog.v(TAG, "Setting wallpaper layer adj to " + adj); 462 mWallpaperAnimLayerAdjustment = adj; 463 for (int i = mWallpaperTokens.size() - 1; i >= 0; i--) { 464 WindowList windows = mWallpaperTokens.get(i).windows; 465 for (int j = windows.size() - 1; j >= 0; j--) { 466 WindowState wallpaper = windows.get(j); 467 wallpaper.mWinAnimator.mAnimLayer = wallpaper.mLayer + adj; 468 if (DEBUG_LAYERS || DEBUG_WALLPAPER) Slog.v(TAG, "setWallpaper win " 469 + wallpaper + " anim layer: " + wallpaper.mWinAnimator.mAnimLayer); 470 } 471 } 472 } 473 474 private void findWallpaperTarget(WindowList windows, FindWallpaperTargetResult result) { 475 final WindowAnimator winAnimator = mService.mAnimator; 476 result.reset(); 477 WindowState w = null; 478 int windowDetachedI = -1; 479 boolean resetTopWallpaper = false; 480 boolean inFreeformSpace = false; 481 boolean replacing = false; 482 for (int i = windows.size() - 1; i >= 0; i--) { 483 w = windows.get(i); 484 if ((w.mAttrs.type == TYPE_WALLPAPER)) { 485 if (result.topWallpaper == null || resetTopWallpaper) { 486 result.setTopWallpaper(w, i); 487 resetTopWallpaper = false; 488 } 489 continue; 490 } 491 resetTopWallpaper = true; 492 if (w != winAnimator.mWindowDetachedWallpaper && w.mAppToken != null) { 493 // If this window's app token is hidden and not animating, 494 // it is of no interest to us. 495 if (w.mAppToken.hidden && w.mAppToken.mAppAnimator.animation == null) { 496 if (DEBUG_WALLPAPER) Slog.v(TAG, 497 "Skipping hidden and not animating token: " + w); 498 continue; 499 } 500 } 501 if (DEBUG_WALLPAPER) Slog.v(TAG, "Win #" + i + " " + w + ": isOnScreen=" 502 + w.isOnScreen() + " mDrawState=" + w.mWinAnimator.mDrawState); 503 504 if (!inFreeformSpace) { 505 TaskStack stack = w.getStack(); 506 inFreeformSpace = stack != null && stack.mStackId == FREEFORM_WORKSPACE_STACK_ID; 507 } 508 509 replacing = replacing || w.mWillReplaceWindow; 510 511 // If the app is executing an animation because the keyguard is going away (and the 512 // keyguard was showing the wallpaper) keep the wallpaper during the animation so it 513 // doesn't flicker out. 514 final boolean hasWallpaper = (w.mAttrs.flags & FLAG_SHOW_WALLPAPER) != 0 515 || (w.mAppToken != null && w.mWinAnimator.mKeyguardGoingAwayWithWallpaper); 516 if (hasWallpaper && w.isOnScreen() && (mWallpaperTarget == w || w.isDrawFinishedLw())) { 517 if (DEBUG_WALLPAPER) Slog.v(TAG, "Found wallpaper target: #" + i + "=" + w); 518 result.setWallpaperTarget(w, i); 519 if (w == mWallpaperTarget && w.mWinAnimator.isAnimationSet()) { 520 // The current wallpaper target is animating, so we'll look behind it for 521 // another possible target and figure out what is going on later. 522 if (DEBUG_WALLPAPER) Slog.v(TAG, 523 "Win " + w + ": token animating, looking behind."); 524 continue; 525 } 526 break; 527 } else if (w == winAnimator.mWindowDetachedWallpaper) { 528 windowDetachedI = i; 529 } 530 } 531 532 if (result.wallpaperTarget == null && windowDetachedI >= 0) { 533 if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, 534 "Found animating detached wallpaper activity: #" + windowDetachedI + "=" + w); 535 result.setWallpaperTarget(w, windowDetachedI); 536 } 537 if (result.wallpaperTarget == null 538 && (inFreeformSpace || (replacing && mWallpaperTarget != null))) { 539 // In freeform mode we set the wallpaper as its own target, so we don't need an 540 // additional window to make it visible. When we are replacing a window and there was 541 // wallpaper before replacement, we want to keep the window until the new windows fully 542 // appear and can determine the visibility, to avoid flickering. 543 result.setWallpaperTarget(result.topWallpaper, result.topWallpaperIndex); 544 } 545 } 546 547 private boolean updateWallpaperWindowsTarget( 548 WindowList windows, FindWallpaperTargetResult result) { 549 550 boolean targetChanged = false; 551 WindowState wallpaperTarget = result.wallpaperTarget; 552 int wallpaperTargetIndex = result.wallpaperTargetIndex; 553 554 if (mWallpaperTarget != wallpaperTarget 555 && (mLowerWallpaperTarget == null || mLowerWallpaperTarget != wallpaperTarget)) { 556 if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, 557 "New wallpaper target: " + wallpaperTarget + " oldTarget: " + mWallpaperTarget); 558 559 mLowerWallpaperTarget = null; 560 mUpperWallpaperTarget = null; 561 562 WindowState oldW = mWallpaperTarget; 563 mWallpaperTarget = wallpaperTarget; 564 targetChanged = true; 565 566 // Now what is happening... if the current and new targets are animating, 567 // then we are in our super special mode! 568 if (wallpaperTarget != null && oldW != null) { 569 boolean oldAnim = oldW.isAnimatingLw(); 570 boolean foundAnim = wallpaperTarget.isAnimatingLw(); 571 if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, 572 "New animation: " + foundAnim + " old animation: " + oldAnim); 573 if (foundAnim && oldAnim) { 574 int oldI = windows.indexOf(oldW); 575 if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, 576 "New i: " + wallpaperTargetIndex + " old i: " + oldI); 577 if (oldI >= 0) { 578 if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, 579 "Animating wallpapers: old#" + oldI + "=" + oldW + "; new#" 580 + wallpaperTargetIndex + "=" + wallpaperTarget); 581 582 // Set the new target correctly. 583 if (wallpaperTarget.mAppToken != null 584 && wallpaperTarget.mAppToken.hiddenRequested) { 585 if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, 586 "Old wallpaper still the target."); 587 mWallpaperTarget = oldW; 588 wallpaperTarget = oldW; 589 wallpaperTargetIndex = oldI; 590 } 591 // Now set the upper and lower wallpaper targets correctly, 592 // and make sure that we are positioning the wallpaper below the lower. 593 else if (wallpaperTargetIndex > oldI) { 594 // The new target is on top of the old one. 595 if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, 596 "Found target above old target."); 597 mUpperWallpaperTarget = wallpaperTarget; 598 mLowerWallpaperTarget = oldW; 599 wallpaperTarget = oldW; 600 wallpaperTargetIndex = oldI; 601 } else { 602 // The new target is below the old one. 603 if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, 604 "Found target below old target."); 605 mUpperWallpaperTarget = oldW; 606 mLowerWallpaperTarget = wallpaperTarget; 607 } 608 } 609 } 610 } 611 612 } else if (mLowerWallpaperTarget != null) { 613 // Is it time to stop animating? 614 if (!mLowerWallpaperTarget.isAnimatingLw() || !mUpperWallpaperTarget.isAnimatingLw()) { 615 if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, "No longer animating wallpaper targets!"); 616 mLowerWallpaperTarget = null; 617 mUpperWallpaperTarget = null; 618 mWallpaperTarget = wallpaperTarget; 619 targetChanged = true; 620 } 621 } 622 623 result.setWallpaperTarget(wallpaperTarget, wallpaperTargetIndex); 624 return targetChanged; 625 } 626 627 boolean updateWallpaperWindowsTargetByLayer( 628 WindowList windows, FindWallpaperTargetResult result) { 629 630 WindowState wallpaperTarget = result.wallpaperTarget; 631 int wallpaperTargetIndex = result.wallpaperTargetIndex; 632 boolean visible = wallpaperTarget != null; 633 634 if (visible) { 635 // The window is visible to the compositor...but is it visible to the user? 636 // That is what the wallpaper cares about. 637 visible = isWallpaperVisible(wallpaperTarget); 638 if (DEBUG_WALLPAPER) Slog.v(TAG, "Wallpaper visibility: " + visible); 639 640 // If the wallpaper target is animating, we may need to copy its layer adjustment. 641 // Only do this if we are not transferring between two wallpaper targets. 642 mWallpaperAnimLayerAdjustment = 643 (mLowerWallpaperTarget == null && wallpaperTarget.mAppToken != null) 644 ? wallpaperTarget.mAppToken.mAppAnimator.animLayerAdjustment : 0; 645 646 final int maxLayer = (mService.mPolicy.getMaxWallpaperLayer() * TYPE_LAYER_MULTIPLIER) 647 + TYPE_LAYER_OFFSET; 648 649 // Now w is the window we are supposed to be behind... but we 650 // need to be sure to also be behind any of its attached windows, 651 // AND any starting window associated with it, AND below the 652 // maximum layer the policy allows for wallpapers. 653 while (wallpaperTargetIndex > 0) { 654 WindowState wb = windows.get(wallpaperTargetIndex - 1); 655 if (wb.mBaseLayer < maxLayer && 656 wb.mAttachedWindow != wallpaperTarget && 657 (wallpaperTarget.mAttachedWindow == null || 658 wb.mAttachedWindow != wallpaperTarget.mAttachedWindow) && 659 (wb.mAttrs.type != TYPE_APPLICATION_STARTING 660 || wallpaperTarget.mToken == null 661 || wb.mToken != wallpaperTarget.mToken)) { 662 // This window is not related to the previous one in any 663 // interesting way, so stop here. 664 break; 665 } 666 wallpaperTarget = wb; 667 wallpaperTargetIndex--; 668 } 669 } else { 670 if (DEBUG_WALLPAPER) Slog.v(TAG, "No wallpaper target"); 671 } 672 673 result.setWallpaperTarget(wallpaperTarget, wallpaperTargetIndex); 674 return visible; 675 } 676 677 boolean updateWallpaperWindowsPlacement(WindowList windows, 678 WindowState wallpaperTarget, int wallpaperTargetIndex, boolean visible) { 679 680 // TODO(multidisplay): Wallpapers on main screen only. 681 final DisplayInfo displayInfo = mService.getDefaultDisplayContentLocked().getDisplayInfo(); 682 final int dw = displayInfo.logicalWidth; 683 final int dh = displayInfo.logicalHeight; 684 685 // Start stepping backwards from here, ensuring that our wallpaper windows 686 // are correctly placed. 687 boolean changed = false; 688 for (int curTokenNdx = mWallpaperTokens.size() - 1; curTokenNdx >= 0; curTokenNdx--) { 689 WindowToken token = mWallpaperTokens.get(curTokenNdx); 690 if (token.hidden == visible) { 691 if (DEBUG_WALLPAPER_LIGHT) Slog.d(TAG, 692 "Wallpaper token " + token + " hidden=" + !visible); 693 token.hidden = !visible; 694 // Need to do a layout to ensure the wallpaper now has the correct size. 695 mService.getDefaultDisplayContentLocked().layoutNeeded = true; 696 } 697 698 final WindowList tokenWindows = token.windows; 699 for (int wallpaperNdx = tokenWindows.size() - 1; wallpaperNdx >= 0; wallpaperNdx--) { 700 WindowState wallpaper = tokenWindows.get(wallpaperNdx); 701 702 if (visible) { 703 updateWallpaperOffset(wallpaper, dw, dh, false); 704 } 705 706 // First, make sure the client has the current visibility state. 707 dispatchWallpaperVisibility(wallpaper, visible); 708 709 wallpaper.mWinAnimator.mAnimLayer = 710 wallpaper.mLayer + mWallpaperAnimLayerAdjustment; 711 if (DEBUG_LAYERS || DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, "adjustWallpaper win " 712 + wallpaper + " anim layer: " + wallpaper.mWinAnimator.mAnimLayer); 713 714 // First, if this window is at the current index, then all is well. 715 if (wallpaper == wallpaperTarget) { 716 wallpaperTargetIndex--; 717 wallpaperTarget = wallpaperTargetIndex > 0 718 ? windows.get(wallpaperTargetIndex - 1) : null; 719 continue; 720 } 721 722 // The window didn't match... the current wallpaper window, 723 // wherever it is, is in the wrong place, so make sure it is not in the list. 724 int oldIndex = windows.indexOf(wallpaper); 725 if (oldIndex >= 0) { 726 if (DEBUG_WINDOW_MOVEMENT) Slog.v(TAG, 727 "Wallpaper removing at " + oldIndex + ": " + wallpaper); 728 windows.remove(oldIndex); 729 mService.mWindowsChanged = true; 730 if (oldIndex < wallpaperTargetIndex) { 731 wallpaperTargetIndex--; 732 } 733 } 734 735 // Now stick it in. For apps over wallpaper keep the wallpaper at the bottommost 736 // layer. For keyguard over wallpaper put the wallpaper under the keyguard. 737 int insertionIndex = 0; 738 if (visible && wallpaperTarget != null) { 739 final int type = wallpaperTarget.mAttrs.type; 740 final int privateFlags = wallpaperTarget.mAttrs.privateFlags; 741 if ((privateFlags & PRIVATE_FLAG_KEYGUARD) != 0 742 || type == TYPE_KEYGUARD_SCRIM) { 743 insertionIndex = windows.indexOf(wallpaperTarget); 744 } 745 } 746 if (DEBUG_WALLPAPER_LIGHT || DEBUG_WINDOW_MOVEMENT 747 || (DEBUG_ADD_REMOVE && oldIndex != insertionIndex)) Slog.v(TAG, 748 "Moving wallpaper " + wallpaper 749 + " from " + oldIndex + " to " + insertionIndex); 750 751 windows.add(insertionIndex, wallpaper); 752 mService.mWindowsChanged = true; 753 changed = true; 754 } 755 } 756 757 return changed; 758 } 759 760 boolean adjustWallpaperWindows() { 761 mService.mWindowPlacerLocked.mWallpaperMayChange = false; 762 763 final WindowList windows = mService.getDefaultWindowListLocked(); 764 // First find top-most window that has asked to be on top of the wallpaper; 765 // all wallpapers go behind it. 766 findWallpaperTarget(windows, mFindResults); 767 final boolean targetChanged = updateWallpaperWindowsTarget(windows, mFindResults); 768 final boolean visible = updateWallpaperWindowsTargetByLayer(windows, mFindResults); 769 WindowState wallpaperTarget = mFindResults.wallpaperTarget; 770 int wallpaperTargetIndex = mFindResults.wallpaperTargetIndex; 771 772 if (wallpaperTarget == null && mFindResults.topWallpaper != null) { 773 // There is no wallpaper target, so it goes at the bottom. 774 // We will assume it is the same place as last time, if known. 775 wallpaperTarget = mFindResults.topWallpaper; 776 wallpaperTargetIndex = mFindResults.topWallpaperIndex + 1; 777 } else { 778 // Okay i is the position immediately above the wallpaper. 779 // Look at what is below it for later. 780 wallpaperTarget = wallpaperTargetIndex > 0 781 ? windows.get(wallpaperTargetIndex - 1) : null; 782 } 783 784 if (visible) { 785 if (mWallpaperTarget.mWallpaperX >= 0) { 786 mLastWallpaperX = mWallpaperTarget.mWallpaperX; 787 mLastWallpaperXStep = mWallpaperTarget.mWallpaperXStep; 788 } 789 if (mWallpaperTarget.mWallpaperY >= 0) { 790 mLastWallpaperY = mWallpaperTarget.mWallpaperY; 791 mLastWallpaperYStep = mWallpaperTarget.mWallpaperYStep; 792 } 793 if (mWallpaperTarget.mWallpaperDisplayOffsetX != Integer.MIN_VALUE) { 794 mLastWallpaperDisplayOffsetX = mWallpaperTarget.mWallpaperDisplayOffsetX; 795 } 796 if (mWallpaperTarget.mWallpaperDisplayOffsetY != Integer.MIN_VALUE) { 797 mLastWallpaperDisplayOffsetY = mWallpaperTarget.mWallpaperDisplayOffsetY; 798 } 799 } 800 801 final boolean changed = updateWallpaperWindowsPlacement( 802 windows, wallpaperTarget, wallpaperTargetIndex, visible); 803 804 if (targetChanged && DEBUG_WALLPAPER_LIGHT) Slog.d(TAG, "New wallpaper: target=" 805 + mWallpaperTarget + " lower=" + mLowerWallpaperTarget + " upper=" 806 + mUpperWallpaperTarget); 807 808 return changed; 809 } 810 811 boolean processWallpaperDrawPendingTimeout() { 812 if (mWallpaperDrawState == WALLPAPER_DRAW_PENDING) { 813 mWallpaperDrawState = WALLPAPER_DRAW_TIMEOUT; 814 if (DEBUG_APP_TRANSITIONS || DEBUG_WALLPAPER) Slog.v(TAG, 815 "*** WALLPAPER DRAW TIMEOUT"); 816 return true; 817 } 818 return false; 819 } 820 821 boolean wallpaperTransitionReady() { 822 boolean transitionReady = true; 823 boolean wallpaperReady = true; 824 for (int curTokenIndex = mWallpaperTokens.size() - 1; 825 curTokenIndex >= 0 && wallpaperReady; curTokenIndex--) { 826 WindowToken token = mWallpaperTokens.get(curTokenIndex); 827 for (int curWallpaperIndex = token.windows.size() - 1; curWallpaperIndex >= 0; 828 curWallpaperIndex--) { 829 WindowState wallpaper = token.windows.get(curWallpaperIndex); 830 if (wallpaper.mWallpaperVisible && !wallpaper.isDrawnLw()) { 831 // We've told this wallpaper to be visible, but it is not drawn yet 832 wallpaperReady = false; 833 if (mWallpaperDrawState != WALLPAPER_DRAW_TIMEOUT) { 834 // wait for this wallpaper until it is drawn or timeout 835 transitionReady = false; 836 } 837 if (mWallpaperDrawState == WALLPAPER_DRAW_NORMAL) { 838 mWallpaperDrawState = WALLPAPER_DRAW_PENDING; 839 mService.mH.removeMessages(WALLPAPER_DRAW_PENDING_TIMEOUT); 840 mService.mH.sendEmptyMessageDelayed(WALLPAPER_DRAW_PENDING_TIMEOUT, 841 WALLPAPER_DRAW_PENDING_TIMEOUT_DURATION); 842 } 843 if (DEBUG_APP_TRANSITIONS || DEBUG_WALLPAPER) Slog.v(TAG, 844 "Wallpaper should be visible but has not been drawn yet. " + 845 "mWallpaperDrawState=" + mWallpaperDrawState); 846 break; 847 } 848 } 849 } 850 if (wallpaperReady) { 851 mWallpaperDrawState = WALLPAPER_DRAW_NORMAL; 852 mService.mH.removeMessages(WALLPAPER_DRAW_PENDING_TIMEOUT); 853 } 854 855 return transitionReady; 856 } 857 858 void addWallpaperToken(WindowToken token) { 859 mWallpaperTokens.add(token); 860 } 861 862 void removeWallpaperToken(WindowToken token) { 863 mWallpaperTokens.remove(token); 864 } 865 866 void dump(PrintWriter pw, String prefix) { 867 pw.print(prefix); pw.print("mWallpaperTarget="); pw.println(mWallpaperTarget); 868 if (mLowerWallpaperTarget != null || mUpperWallpaperTarget != null) { 869 pw.print(prefix); pw.print("mLowerWallpaperTarget="); pw.println(mLowerWallpaperTarget); 870 pw.print(prefix); pw.print("mUpperWallpaperTarget="); pw.println(mUpperWallpaperTarget); 871 } 872 pw.print(prefix); pw.print("mLastWallpaperX="); pw.print(mLastWallpaperX); 873 pw.print(" mLastWallpaperY="); pw.println(mLastWallpaperY); 874 if (mLastWallpaperDisplayOffsetX != Integer.MIN_VALUE 875 || mLastWallpaperDisplayOffsetY != Integer.MIN_VALUE) { 876 pw.print(prefix); 877 pw.print("mLastWallpaperDisplayOffsetX="); pw.print(mLastWallpaperDisplayOffsetX); 878 pw.print(" mLastWallpaperDisplayOffsetY="); pw.println(mLastWallpaperDisplayOffsetY); 879 } 880 } 881 882 void dumpTokens(PrintWriter pw, String prefix, boolean dumpAll) { 883 if (!mWallpaperTokens.isEmpty()) { 884 pw.println(); 885 pw.print(prefix); pw.println("Wallpaper tokens:"); 886 for (int i = mWallpaperTokens.size() - 1; i >= 0; i--) { 887 WindowToken token = mWallpaperTokens.get(i); 888 pw.print(prefix); pw.print("Wallpaper #"); pw.print(i); 889 pw.print(' '); pw.print(token); 890 if (dumpAll) { 891 pw.println(':'); 892 token.dump(pw, " "); 893 } else { 894 pw.println(); 895 } 896 } 897 } 898 } 899 900 /** Helper class for storing the results of a wallpaper target find operation. */ 901 final private static class FindWallpaperTargetResult { 902 int topWallpaperIndex = 0; 903 WindowState topWallpaper = null; 904 int wallpaperTargetIndex = 0; 905 WindowState wallpaperTarget = null; 906 907 void setTopWallpaper(WindowState win, int index) { 908 topWallpaper = win; 909 topWallpaperIndex = index; 910 } 911 912 void setWallpaperTarget(WindowState win, int index) { 913 wallpaperTarget = win; 914 wallpaperTargetIndex = index; 915 } 916 917 void reset() { 918 topWallpaperIndex = 0; 919 topWallpaper = null; 920 wallpaperTargetIndex = 0; 921 wallpaperTarget = null; 922 } 923 } 924 } 925
