AppWindowAnimator.java revision 3dac63a18d9115405404561d327010604420b07b
1/* 2 * Copyright (C) 2014 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.wm.WindowManagerDebugConfig.DEBUG_ANIM; 20import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_LAYERS; 21import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_VISIBILITY; 22import static com.android.server.wm.WindowManagerDebugConfig.SHOW_TRANSACTIONS; 23import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME; 24import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM; 25import static com.android.server.wm.WindowManagerService.TYPE_LAYER_OFFSET; 26 27import android.graphics.Matrix; 28import android.util.Slog; 29import android.util.TimeUtils; 30import android.view.Choreographer; 31import android.view.Display; 32import android.view.SurfaceControl; 33import android.view.WindowManagerPolicy; 34import android.view.animation.Animation; 35import android.view.animation.Transformation; 36 37import java.io.PrintWriter; 38import java.util.ArrayList; 39 40public class AppWindowAnimator { 41 static final String TAG = TAG_WITH_CLASS_NAME ? "AppWindowAnimator" : TAG_WM; 42 43 private static final int PROLONG_ANIMATION_DISABLED = 0; 44 static final int PROLONG_ANIMATION_AT_END = 1; 45 static final int PROLONG_ANIMATION_AT_START = 2; 46 47 final AppWindowToken mAppToken; 48 final WindowManagerService mService; 49 final WindowAnimator mAnimator; 50 51 boolean animating; 52 boolean wasAnimating; 53 Animation animation; 54 boolean hasTransformation; 55 final Transformation transformation = new Transformation(); 56 57 // Have we been asked to have this token keep the screen frozen? 58 // Protect with mAnimator. 59 boolean freezingScreen; 60 61 /** 62 * How long we last kept the screen frozen. 63 */ 64 int lastFreezeDuration; 65 66 // Offset to the window of all layers in the token, for use by 67 // AppWindowToken animations. 68 int animLayerAdjustment; 69 70 // Propagated from AppWindowToken.allDrawn, to determine when 71 // the state changes. 72 boolean allDrawn; 73 74 // Special surface for thumbnail animation. If deferThumbnailDestruction is enabled, then we 75 // will make sure that the thumbnail is destroyed after the other surface is completed. This 76 // requires that the duration of the two animations are the same. 77 SurfaceControl thumbnail; 78 int thumbnailTransactionSeq; 79 int thumbnailX; 80 int thumbnailY; 81 int thumbnailLayer; 82 int thumbnailForceAboveLayer; 83 Animation thumbnailAnimation; 84 final Transformation thumbnailTransformation = new Transformation(); 85 // This flag indicates that the destruction of the thumbnail surface is synchronized with 86 // another animation, so defer the destruction of this thumbnail surface for a single frame 87 // after the secondary animation completes. 88 boolean deferThumbnailDestruction; 89 // This flag is set if the animator has deferThumbnailDestruction set and has reached the final 90 // frame of animation. It will extend the animation by one frame and then clean up afterwards. 91 boolean deferFinalFrameCleanup; 92 // If true when the animation hits the last frame, it will keep running on that last frame. 93 // This is used to synchronize animation with Recents and we wait for Recents to tell us to 94 // finish or for a new animation be set as fail-safe mechanism. 95 private int mProlongAnimation; 96 // Whether the prolong animation can be removed when animation is set. The purpose of this is 97 // that if recents doesn't tell us to remove the prolonged animation, we will get rid of it 98 // when new animation is set. 99 private boolean mClearProlongedAnimation; 100 101 /** WindowStateAnimator from mAppAnimator.allAppWindows as of last performLayout */ 102 ArrayList<WindowStateAnimator> mAllAppWinAnimators = new ArrayList<>(); 103 104 /** True if the current animation was transferred from another AppWindowAnimator. 105 * See {@link #transferCurrentAnimation}*/ 106 boolean usingTransferredAnimation = false; 107 108 private boolean mSkipFirstFrame = false; 109 110 static final Animation sDummyAnimation = new DummyAnimation(); 111 112 public AppWindowAnimator(final AppWindowToken atoken) { 113 mAppToken = atoken; 114 mService = atoken.service; 115 mAnimator = mService.mAnimator; 116 } 117 118 public void setAnimation(Animation anim, int width, int height, boolean skipFirstFrame) { 119 if (WindowManagerService.localLOGV) Slog.v(TAG, "Setting animation in " + mAppToken 120 + ": " + anim + " wxh=" + width + "x" + height 121 + " isVisible=" + mAppToken.isVisible()); 122 animation = anim; 123 animating = false; 124 if (!anim.isInitialized()) { 125 anim.initialize(width, height, width, height); 126 } 127 anim.restrictDuration(WindowManagerService.MAX_ANIMATION_DURATION); 128 anim.scaleCurrentDuration(mService.getTransitionAnimationScaleLocked()); 129 int zorder = anim.getZAdjustment(); 130 int adj = 0; 131 if (zorder == Animation.ZORDER_TOP) { 132 adj = TYPE_LAYER_OFFSET; 133 } else if (zorder == Animation.ZORDER_BOTTOM) { 134 adj = -TYPE_LAYER_OFFSET; 135 } 136 137 if (animLayerAdjustment != adj) { 138 animLayerAdjustment = adj; 139 updateLayers(); 140 } 141 // Start out animation gone if window is gone, or visible if window is visible. 142 transformation.clear(); 143 transformation.setAlpha(mAppToken.isVisible() ? 1 : 0); 144 hasTransformation = true; 145 146 this.mSkipFirstFrame = skipFirstFrame; 147 148 if (!mAppToken.appFullscreen) { 149 anim.setBackgroundColor(0); 150 } 151 if (mClearProlongedAnimation) { 152 mProlongAnimation = PROLONG_ANIMATION_DISABLED; 153 } else { 154 mClearProlongedAnimation = true; 155 } 156 157 // Since we are finally starting our animation, we don't need the logic anymore to prevent 158 // the app from showing again if we just moved between stacks. See 159 // {@link WindowState#notifyMovedInStack}. 160 for (int i = mAppToken.allAppWindows.size() - 1; i >= 0; i--) { 161 mAppToken.allAppWindows.get(i).resetJustMovedInStack(); 162 } 163 } 164 165 public void setDummyAnimation() { 166 if (WindowManagerService.localLOGV) Slog.v(TAG, "Setting dummy animation in " + mAppToken 167 + " isVisible=" + mAppToken.isVisible()); 168 animation = sDummyAnimation; 169 hasTransformation = true; 170 transformation.clear(); 171 transformation.setAlpha(mAppToken.isVisible() ? 1 : 0); 172 } 173 174 public void clearAnimation() { 175 if (animation != null) { 176 animation = null; 177 animating = true; 178 } 179 clearThumbnail(); 180 if (mAppToken.deferClearAllDrawn) { 181 mAppToken.allDrawn = false; 182 mAppToken.deferClearAllDrawn = false; 183 } 184 usingTransferredAnimation = false; 185 } 186 187 public boolean isAnimating() { 188 return animation != null || mAppToken.inPendingTransaction; 189 } 190 191 public void clearThumbnail() { 192 if (thumbnail != null) { 193 thumbnail.hide(); 194 mService.mWindowPlacerLocked.destroyAfterTransaction(thumbnail); 195 thumbnail = null; 196 } 197 deferThumbnailDestruction = false; 198 } 199 200 void transferCurrentAnimation( 201 AppWindowAnimator toAppAnimator, WindowStateAnimator transferWinAnimator) { 202 203 if (animation != null) { 204 toAppAnimator.animation = animation; 205 animation = null; 206 toAppAnimator.animating = animating; 207 toAppAnimator.animLayerAdjustment = animLayerAdjustment; 208 animLayerAdjustment = 0; 209 toAppAnimator.updateLayers(); 210 updateLayers(); 211 toAppAnimator.usingTransferredAnimation = true; 212 } 213 if (transferWinAnimator != null) { 214 mAllAppWinAnimators.remove(transferWinAnimator); 215 toAppAnimator.mAllAppWinAnimators.add(transferWinAnimator); 216 transferWinAnimator.mAppAnimator = toAppAnimator; 217 } 218 } 219 220 void updateLayers() { 221 final int windowCount = mAppToken.allAppWindows.size(); 222 final int adj = animLayerAdjustment; 223 thumbnailLayer = -1; 224 final WallpaperController wallpaperController = mService.mWallpaperControllerLocked; 225 for (int i = 0; i < windowCount; i++) { 226 final WindowState w = mAppToken.allAppWindows.get(i); 227 final WindowStateAnimator winAnimator = w.mWinAnimator; 228 winAnimator.mAnimLayer = w.mLayer + adj; 229 if (winAnimator.mAnimLayer > thumbnailLayer) { 230 thumbnailLayer = winAnimator.mAnimLayer; 231 } 232 if (DEBUG_LAYERS) Slog.v(TAG, "Updating layer " + w + ": " + winAnimator.mAnimLayer); 233 if (w == mService.mInputMethodTarget && !mService.mInputMethodTargetWaitingAnim) { 234 mService.mLayersController.setInputMethodAnimLayerAdjustment(adj); 235 } 236 wallpaperController.setAnimLayerAdjustment(w, adj); 237 } 238 } 239 240 private void stepThumbnailAnimation(long currentTime) { 241 thumbnailTransformation.clear(); 242 final long animationFrameTime = getAnimationFrameTime(thumbnailAnimation, currentTime); 243 thumbnailAnimation.getTransformation(animationFrameTime, thumbnailTransformation); 244 thumbnailTransformation.getMatrix().preTranslate(thumbnailX, thumbnailY); 245 246 ScreenRotationAnimation screenRotationAnimation = 247 mAnimator.getScreenRotationAnimationLocked(Display.DEFAULT_DISPLAY); 248 final boolean screenAnimation = screenRotationAnimation != null 249 && screenRotationAnimation.isAnimating(); 250 if (screenAnimation) { 251 thumbnailTransformation.postCompose(screenRotationAnimation.getEnterTransformation()); 252 } 253 // cache often used attributes locally 254 final float tmpFloats[] = mService.mTmpFloats; 255 thumbnailTransformation.getMatrix().getValues(tmpFloats); 256 if (SHOW_TRANSACTIONS) WindowManagerService.logSurface(thumbnail, 257 "thumbnail", "POS " + tmpFloats[Matrix.MTRANS_X] 258 + ", " + tmpFloats[Matrix.MTRANS_Y]); 259 thumbnail.setPosition(tmpFloats[Matrix.MTRANS_X], tmpFloats[Matrix.MTRANS_Y]); 260 if (SHOW_TRANSACTIONS) WindowManagerService.logSurface(thumbnail, 261 "thumbnail", "alpha=" + thumbnailTransformation.getAlpha() 262 + " layer=" + thumbnailLayer 263 + " matrix=[" + tmpFloats[Matrix.MSCALE_X] 264 + "," + tmpFloats[Matrix.MSKEW_Y] 265 + "][" + tmpFloats[Matrix.MSKEW_X] 266 + "," + tmpFloats[Matrix.MSCALE_Y] + "]"); 267 thumbnail.setAlpha(thumbnailTransformation.getAlpha()); 268 if (thumbnailForceAboveLayer > 0) { 269 thumbnail.setLayer(thumbnailForceAboveLayer + 1); 270 } else { 271 // The thumbnail is layered below the window immediately above this 272 // token's anim layer. 273 thumbnail.setLayer(thumbnailLayer + WindowManagerService.WINDOW_LAYER_MULTIPLIER 274 - WindowManagerService.LAYER_OFFSET_THUMBNAIL); 275 } 276 thumbnail.setMatrix(tmpFloats[Matrix.MSCALE_X], tmpFloats[Matrix.MSKEW_Y], 277 tmpFloats[Matrix.MSKEW_X], tmpFloats[Matrix.MSCALE_Y]); 278 } 279 280 /** 281 * Sometimes we need to synchronize the first frame of animation with some external event, e.g. 282 * Recents hiding some of its content. To achieve this, we prolong the start of the animaiton 283 * and keep producing the first frame of the animation. 284 */ 285 private long getAnimationFrameTime(Animation animation, long currentTime) { 286 if (mProlongAnimation == PROLONG_ANIMATION_AT_START) { 287 animation.setStartTime(currentTime); 288 return currentTime + 1; 289 } 290 return currentTime; 291 } 292 293 private boolean stepAnimation(long currentTime) { 294 if (animation == null) { 295 return false; 296 } 297 transformation.clear(); 298 final long animationFrameTime = getAnimationFrameTime(animation, currentTime); 299 boolean hasMoreFrames = animation.getTransformation(animationFrameTime, transformation); 300 if (!hasMoreFrames) { 301 if (deferThumbnailDestruction && !deferFinalFrameCleanup) { 302 // We are deferring the thumbnail destruction, so extend the animation for one more 303 // (dummy) frame before we clean up 304 deferFinalFrameCleanup = true; 305 hasMoreFrames = true; 306 } else { 307 if (false && DEBUG_ANIM) Slog.v(TAG, 308 "Stepped animation in " + mAppToken + ": more=" + hasMoreFrames + 309 ", xform=" + transformation + ", mProlongAnimation=" + mProlongAnimation); 310 deferFinalFrameCleanup = false; 311 if (mProlongAnimation == PROLONG_ANIMATION_AT_END) { 312 hasMoreFrames = true; 313 } else { 314 animation = null; 315 clearThumbnail(); 316 if (DEBUG_ANIM) Slog.v(TAG, "Finished animation in " + mAppToken + " @ " 317 + currentTime); 318 } 319 } 320 } 321 hasTransformation = hasMoreFrames; 322 return hasMoreFrames; 323 } 324 325 private long getStartTimeCorrection() { 326 if (mSkipFirstFrame) { 327 328 // If the transition is an animation in which the first frame doesn't change the screen 329 // contents at all, we can just skip it and start at the second frame. So we shift the 330 // start time of the animation forward by minus the frame duration. 331 return -Choreographer.getInstance().getFrameIntervalNanos() / TimeUtils.NANOS_PER_MS; 332 } else { 333 return 0; 334 } 335 } 336 337 // This must be called while inside a transaction. 338 boolean stepAnimationLocked(long currentTime, final int displayId) { 339 if (mService.okToDisplay()) { 340 // We will run animations as long as the display isn't frozen. 341 342 if (animation == sDummyAnimation) { 343 // This guy is going to animate, but not yet. For now count 344 // it as not animating for purposes of scheduling transactions; 345 // when it is really time to animate, this will be set to 346 // a real animation and the next call will execute normally. 347 return false; 348 } 349 350 if ((mAppToken.allDrawn || animating || mAppToken.startingDisplayed) 351 && animation != null) { 352 if (!animating) { 353 if (DEBUG_ANIM) Slog.v(TAG, 354 "Starting animation in " + mAppToken + 355 " @ " + currentTime + " scale=" 356 + mService.getTransitionAnimationScaleLocked() 357 + " allDrawn=" + mAppToken.allDrawn + " animating=" + animating); 358 long correction = getStartTimeCorrection(); 359 animation.setStartTime(currentTime + correction); 360 animating = true; 361 if (thumbnail != null) { 362 thumbnail.show(); 363 thumbnailAnimation.setStartTime(currentTime + correction); 364 } 365 mSkipFirstFrame = false; 366 } 367 if (stepAnimation(currentTime)) { 368 // animation isn't over, step any thumbnail and that's 369 // it for now. 370 if (thumbnail != null) { 371 stepThumbnailAnimation(currentTime); 372 } 373 return true; 374 } 375 } 376 } else if (animation != null) { 377 // If the display is frozen, and there is a pending animation, 378 // clear it and make sure we run the cleanup code. 379 animating = true; 380 animation = null; 381 } 382 383 hasTransformation = false; 384 385 if (!animating && animation == null) { 386 return false; 387 } 388 389 mAnimator.setAppLayoutChanges(this, WindowManagerPolicy.FINISH_LAYOUT_REDO_ANIM, 390 "AppWindowToken", displayId); 391 392 clearAnimation(); 393 animating = false; 394 if (animLayerAdjustment != 0) { 395 animLayerAdjustment = 0; 396 updateLayers(); 397 } 398 if (mService.mInputMethodTarget != null 399 && mService.mInputMethodTarget.mAppToken == mAppToken) { 400 mService.moveInputMethodWindowsIfNeededLocked(true); 401 } 402 403 if (DEBUG_ANIM) Slog.v(TAG, 404 "Animation done in " + mAppToken 405 + ": reportedVisible=" + mAppToken.reportedVisible); 406 407 transformation.clear(); 408 409 final int numAllAppWinAnimators = mAllAppWinAnimators.size(); 410 for (int i = 0; i < numAllAppWinAnimators; i++) { 411 mAllAppWinAnimators.get(i).finishExit(); 412 } 413 mService.mAppTransition.notifyAppTransitionFinishedLocked(mAppToken.token); 414 return false; 415 } 416 417 // This must be called while inside a transaction. 418 boolean showAllWindowsLocked() { 419 boolean isAnimating = false; 420 final int NW = mAllAppWinAnimators.size(); 421 for (int i=0; i<NW; i++) { 422 WindowStateAnimator winAnimator = mAllAppWinAnimators.get(i); 423 if (DEBUG_VISIBILITY) Slog.v(TAG, "performing show on: " + winAnimator); 424 winAnimator.performShowLocked(); 425 isAnimating |= winAnimator.isAnimating(); 426 } 427 return isAnimating; 428 } 429 430 void dump(PrintWriter pw, String prefix, boolean dumpAll) { 431 pw.print(prefix); pw.print("mAppToken="); pw.println(mAppToken); 432 pw.print(prefix); pw.print("mAnimator="); pw.println(mAnimator); 433 pw.print(prefix); pw.print("freezingScreen="); pw.print(freezingScreen); 434 pw.print(" allDrawn="); pw.print(allDrawn); 435 pw.print(" animLayerAdjustment="); pw.println(animLayerAdjustment); 436 if (lastFreezeDuration != 0) { 437 pw.print(prefix); pw.print("lastFreezeDuration="); 438 TimeUtils.formatDuration(lastFreezeDuration, pw); pw.println(); 439 } 440 if (animating || animation != null) { 441 pw.print(prefix); pw.print("animating="); pw.println(animating); 442 pw.print(prefix); pw.print("animation="); pw.println(animation); 443 } 444 if (hasTransformation) { 445 pw.print(prefix); pw.print("XForm: "); 446 transformation.printShortString(pw); 447 pw.println(); 448 } 449 if (thumbnail != null) { 450 pw.print(prefix); pw.print("thumbnail="); pw.print(thumbnail); 451 pw.print(" x="); pw.print(thumbnailX); 452 pw.print(" y="); pw.print(thumbnailY); 453 pw.print(" layer="); pw.println(thumbnailLayer); 454 pw.print(prefix); pw.print("thumbnailAnimation="); pw.println(thumbnailAnimation); 455 pw.print(prefix); pw.print("thumbnailTransformation="); 456 pw.println(thumbnailTransformation.toShortString()); 457 } 458 for (int i=0; i<mAllAppWinAnimators.size(); i++) { 459 WindowStateAnimator wanim = mAllAppWinAnimators.get(i); 460 pw.print(prefix); pw.print("App Win Anim #"); pw.print(i); 461 pw.print(": "); pw.println(wanim); 462 } 463 } 464 465 void startProlongAnimation(int prolongType) { 466 mProlongAnimation = prolongType; 467 mClearProlongedAnimation = false; 468 } 469 470 void endProlongedAnimation() { 471 mProlongAnimation = PROLONG_ANIMATION_DISABLED; 472 } 473 474 // This is an animation that does nothing: it just immediately finishes 475 // itself every time it is called. It is used as a stub animation in cases 476 // where we want to synchronize multiple things that may be animating. 477 static final class DummyAnimation extends Animation { 478 @Override 479 public boolean getTransformation(long currentTime, Transformation outTransformation) { 480 return false; 481 } 482 } 483 484} 485