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 android.view.WindowManagerPolicy.FINISH_LAYOUT_REDO_ANIM; 20 21import static com.android.server.wm.AppTransition.TRANSIT_UNSET; 22import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_ANIM; 23import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_VISIBILITY; 24import static com.android.server.wm.WindowManagerDebugConfig.SHOW_TRANSACTIONS; 25import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME; 26import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM; 27import static com.android.server.wm.WindowManagerService.TYPE_LAYER_OFFSET; 28import static com.android.server.wm.WindowStateAnimator.STACK_CLIP_BEFORE_ANIM; 29 30import android.graphics.Matrix; 31import android.util.Slog; 32import android.util.TimeUtils; 33import android.view.Choreographer; 34import android.view.Display; 35import android.view.SurfaceControl; 36import android.view.animation.Animation; 37import android.view.animation.Transformation; 38 39import java.io.PrintWriter; 40import java.util.ArrayList; 41 42public class AppWindowAnimator { 43 static final String TAG = TAG_WITH_CLASS_NAME ? "AppWindowAnimator" : TAG_WM; 44 45 private static final int PROLONG_ANIMATION_DISABLED = 0; 46 static final int PROLONG_ANIMATION_AT_END = 1; 47 static final int PROLONG_ANIMATION_AT_START = 2; 48 49 final AppWindowToken mAppToken; 50 final WindowManagerService mService; 51 final WindowAnimator mAnimator; 52 53 boolean animating; 54 boolean wasAnimating; 55 Animation animation; 56 boolean hasTransformation; 57 final Transformation transformation = new Transformation(); 58 59 // Have we been asked to have this token keep the screen frozen? 60 // Protect with mAnimator. 61 boolean freezingScreen; 62 63 /** 64 * How long we last kept the screen frozen. 65 */ 66 int lastFreezeDuration; 67 68 // Offset to the window of all layers in the token, for use by 69 // AppWindowToken animations. 70 int animLayerAdjustment; 71 72 // Propagated from AppWindowToken.allDrawn, to determine when 73 // the state changes. 74 boolean allDrawn; 75 76 // Special surface for thumbnail animation. If deferThumbnailDestruction is enabled, then we 77 // will make sure that the thumbnail is destroyed after the other surface is completed. This 78 // requires that the duration of the two animations are the same. 79 SurfaceControl thumbnail; 80 int thumbnailTransactionSeq; 81 // TODO(b/62029108): combine both members into a private one. Create a member function to set 82 // the thumbnail layer to +1 to the highest layer position and replace all setter instances 83 // with this function. Remove all unnecessary calls to both variables in other classes. 84 int thumbnailLayer; 85 int thumbnailForceAboveLayer; 86 Animation thumbnailAnimation; 87 final Transformation thumbnailTransformation = new Transformation(); 88 // This flag indicates that the destruction of the thumbnail surface is synchronized with 89 // another animation, so defer the destruction of this thumbnail surface for a single frame 90 // after the secondary animation completes. 91 boolean deferThumbnailDestruction; 92 // This flag is set if the animator has deferThumbnailDestruction set and has reached the final 93 // frame of animation. It will extend the animation by one frame and then clean up afterwards. 94 boolean deferFinalFrameCleanup; 95 // If true when the animation hits the last frame, it will keep running on that last frame. 96 // This is used to synchronize animation with Recents and we wait for Recents to tell us to 97 // finish or for a new animation be set as fail-safe mechanism. 98 private int mProlongAnimation; 99 // Whether the prolong animation can be removed when animation is set. The purpose of this is 100 // that if recents doesn't tell us to remove the prolonged animation, we will get rid of it 101 // when new animation is set. 102 private boolean mClearProlongedAnimation; 103 private int mTransit; 104 private int mTransitFlags; 105 106 /** WindowStateAnimator from mAppAnimator.allAppWindows as of last performLayout */ 107 ArrayList<WindowStateAnimator> mAllAppWinAnimators = new ArrayList<>(); 108 109 /** True if the current animation was transferred from another AppWindowAnimator. 110 * See {@link #transferCurrentAnimation}*/ 111 boolean usingTransferredAnimation = false; 112 113 private boolean mSkipFirstFrame = false; 114 private int mStackClip = STACK_CLIP_BEFORE_ANIM; 115 116 static final Animation sDummyAnimation = new DummyAnimation(); 117 118 public AppWindowAnimator(final AppWindowToken atoken, WindowManagerService service) { 119 mAppToken = atoken; 120 mService = service; 121 mAnimator = mService.mAnimator; 122 } 123 124 public void setAnimation(Animation anim, int width, int height, int parentWidth, 125 int parentHeight, boolean skipFirstFrame, int stackClip, int transit, 126 int transitFlags) { 127 if (WindowManagerService.localLOGV) Slog.v(TAG, "Setting animation in " + mAppToken 128 + ": " + anim + " wxh=" + width + "x" + height 129 + " hasContentToDisplay=" + mAppToken.hasContentToDisplay()); 130 animation = anim; 131 animating = false; 132 if (!anim.isInitialized()) { 133 anim.initialize(width, height, parentWidth, parentHeight); 134 } 135 anim.restrictDuration(WindowManagerService.MAX_ANIMATION_DURATION); 136 anim.scaleCurrentDuration(mService.getTransitionAnimationScaleLocked()); 137 int zorder = anim.getZAdjustment(); 138 int adj = 0; 139 if (zorder == Animation.ZORDER_TOP) { 140 adj = TYPE_LAYER_OFFSET; 141 } else if (zorder == Animation.ZORDER_BOTTOM) { 142 adj = -TYPE_LAYER_OFFSET; 143 } 144 145 if (animLayerAdjustment != adj) { 146 animLayerAdjustment = adj; 147 updateLayers(); 148 } 149 // Start out animation gone if window is gone, or visible if window is visible. 150 transformation.clear(); 151 transformation.setAlpha(mAppToken.hasContentToDisplay() ? 1 : 0); 152 hasTransformation = true; 153 mStackClip = stackClip; 154 155 mSkipFirstFrame = skipFirstFrame; 156 mTransit = transit; 157 mTransitFlags = transitFlags; 158 159 if (!mAppToken.fillsParent()) { 160 anim.setBackgroundColor(0); 161 } 162 if (mClearProlongedAnimation) { 163 mProlongAnimation = PROLONG_ANIMATION_DISABLED; 164 } else { 165 mClearProlongedAnimation = true; 166 } 167 } 168 169 public void setDummyAnimation() { 170 if (WindowManagerService.localLOGV) Slog.v(TAG, "Setting dummy animation in " + mAppToken 171 + " hasContentToDisplay=" + mAppToken.hasContentToDisplay()); 172 animation = sDummyAnimation; 173 hasTransformation = true; 174 transformation.clear(); 175 transformation.setAlpha(mAppToken.hasContentToDisplay() ? 1 : 0); 176 } 177 178 void setNullAnimation() { 179 animation = null; 180 usingTransferredAnimation = false; 181 } 182 183 public void clearAnimation() { 184 if (animation != null) { 185 animating = true; 186 } 187 clearThumbnail(); 188 setNullAnimation(); 189 if (mAppToken.deferClearAllDrawn) { 190 mAppToken.clearAllDrawn(); 191 } 192 mStackClip = STACK_CLIP_BEFORE_ANIM; 193 mTransit = TRANSIT_UNSET; 194 mTransitFlags = 0; 195 } 196 197 public boolean isAnimating() { 198 return animation != null || mAppToken.inPendingTransaction; 199 } 200 201 public int getTransit() { 202 return mTransit; 203 } 204 205 int getTransitFlags() { 206 return mTransitFlags; 207 } 208 209 public void clearThumbnail() { 210 if (thumbnail != null) { 211 thumbnail.hide(); 212 mService.mWindowPlacerLocked.destroyAfterTransaction(thumbnail); 213 thumbnail = null; 214 } 215 deferThumbnailDestruction = false; 216 } 217 218 int getStackClip() { 219 return mStackClip; 220 } 221 222 void transferCurrentAnimation( 223 AppWindowAnimator toAppAnimator, WindowStateAnimator transferWinAnimator) { 224 225 if (animation != null) { 226 toAppAnimator.animation = animation; 227 toAppAnimator.animating = animating; 228 toAppAnimator.animLayerAdjustment = animLayerAdjustment; 229 setNullAnimation(); 230 animLayerAdjustment = 0; 231 toAppAnimator.updateLayers(); 232 updateLayers(); 233 toAppAnimator.usingTransferredAnimation = true; 234 toAppAnimator.mTransit = mTransit; 235 } 236 if (transferWinAnimator != null) { 237 mAllAppWinAnimators.remove(transferWinAnimator); 238 toAppAnimator.mAllAppWinAnimators.add(transferWinAnimator); 239 toAppAnimator.hasTransformation = transferWinAnimator.mAppAnimator.hasTransformation; 240 if (toAppAnimator.hasTransformation) { 241 toAppAnimator.transformation.set(transferWinAnimator.mAppAnimator.transformation); 242 } else { 243 toAppAnimator.transformation.clear(); 244 } 245 transferWinAnimator.mAppAnimator = toAppAnimator; 246 } 247 } 248 249 private void updateLayers() { 250 mAppToken.getDisplayContent().assignWindowLayers(false /* relayoutNeeded */); 251 thumbnailLayer = mAppToken.getHighestAnimLayer(); 252 } 253 254 private void stepThumbnailAnimation(long currentTime) { 255 thumbnailTransformation.clear(); 256 final long animationFrameTime = getAnimationFrameTime(thumbnailAnimation, currentTime); 257 thumbnailAnimation.getTransformation(animationFrameTime, thumbnailTransformation); 258 259 ScreenRotationAnimation screenRotationAnimation = 260 mAnimator.getScreenRotationAnimationLocked(Display.DEFAULT_DISPLAY); 261 final boolean screenAnimation = screenRotationAnimation != null 262 && screenRotationAnimation.isAnimating(); 263 if (screenAnimation) { 264 thumbnailTransformation.postCompose(screenRotationAnimation.getEnterTransformation()); 265 } 266 // cache often used attributes locally 267 final float tmpFloats[] = mService.mTmpFloats; 268 thumbnailTransformation.getMatrix().getValues(tmpFloats); 269 if (SHOW_TRANSACTIONS) WindowManagerService.logSurface(thumbnail, 270 "thumbnail", "POS " + tmpFloats[Matrix.MTRANS_X] 271 + ", " + tmpFloats[Matrix.MTRANS_Y]); 272 thumbnail.setPosition(tmpFloats[Matrix.MTRANS_X], tmpFloats[Matrix.MTRANS_Y]); 273 if (SHOW_TRANSACTIONS) WindowManagerService.logSurface(thumbnail, 274 "thumbnail", "alpha=" + thumbnailTransformation.getAlpha() 275 + " layer=" + thumbnailLayer 276 + " matrix=[" + tmpFloats[Matrix.MSCALE_X] 277 + "," + tmpFloats[Matrix.MSKEW_Y] 278 + "][" + tmpFloats[Matrix.MSKEW_X] 279 + "," + tmpFloats[Matrix.MSCALE_Y] + "]"); 280 thumbnail.setAlpha(thumbnailTransformation.getAlpha()); 281 if (thumbnailForceAboveLayer > 0) { 282 thumbnail.setLayer(thumbnailForceAboveLayer + 1); 283 } else { 284 // The thumbnail is layered below the window immediately above this 285 // token's anim layer. 286 thumbnail.setLayer(thumbnailLayer + WindowManagerService.WINDOW_LAYER_MULTIPLIER 287 - WindowManagerService.LAYER_OFFSET_THUMBNAIL); 288 } 289 thumbnail.setMatrix(tmpFloats[Matrix.MSCALE_X], tmpFloats[Matrix.MSKEW_Y], 290 tmpFloats[Matrix.MSKEW_X], tmpFloats[Matrix.MSCALE_Y]); 291 thumbnail.setWindowCrop(thumbnailTransformation.getClipRect()); 292 } 293 294 /** 295 * Sometimes we need to synchronize the first frame of animation with some external event, e.g. 296 * Recents hiding some of its content. To achieve this, we prolong the start of the animaiton 297 * and keep producing the first frame of the animation. 298 */ 299 private long getAnimationFrameTime(Animation animation, long currentTime) { 300 if (mProlongAnimation == PROLONG_ANIMATION_AT_START) { 301 animation.setStartTime(currentTime); 302 return currentTime + 1; 303 } 304 return currentTime; 305 } 306 307 private boolean stepAnimation(long currentTime) { 308 if (animation == null) { 309 return false; 310 } 311 transformation.clear(); 312 final long animationFrameTime = getAnimationFrameTime(animation, currentTime); 313 boolean hasMoreFrames = animation.getTransformation(animationFrameTime, transformation); 314 if (!hasMoreFrames) { 315 if (deferThumbnailDestruction && !deferFinalFrameCleanup) { 316 // We are deferring the thumbnail destruction, so extend the animation for one more 317 // (dummy) frame before we clean up 318 deferFinalFrameCleanup = true; 319 hasMoreFrames = true; 320 } else { 321 if (false && DEBUG_ANIM) Slog.v(TAG, 322 "Stepped animation in " + mAppToken + ": more=" + hasMoreFrames + 323 ", xform=" + transformation + ", mProlongAnimation=" + mProlongAnimation); 324 deferFinalFrameCleanup = false; 325 if (mProlongAnimation == PROLONG_ANIMATION_AT_END) { 326 hasMoreFrames = true; 327 } else { 328 setNullAnimation(); 329 clearThumbnail(); 330 if (DEBUG_ANIM) Slog.v(TAG, "Finished animation in " + mAppToken + " @ " 331 + currentTime); 332 } 333 } 334 } 335 hasTransformation = hasMoreFrames; 336 return hasMoreFrames; 337 } 338 339 private long getStartTimeCorrection() { 340 if (mSkipFirstFrame) { 341 342 // If the transition is an animation in which the first frame doesn't change the screen 343 // contents at all, we can just skip it and start at the second frame. So we shift the 344 // start time of the animation forward by minus the frame duration. 345 return -Choreographer.getInstance().getFrameIntervalNanos() / TimeUtils.NANOS_PER_MS; 346 } else { 347 return 0; 348 } 349 } 350 351 // This must be called while inside a transaction. 352 boolean stepAnimationLocked(long currentTime) { 353 if (mService.okToDisplay()) { 354 // We will run animations as long as the display isn't frozen. 355 356 if (animation == sDummyAnimation) { 357 // This guy is going to animate, but not yet. For now count 358 // it as not animating for purposes of scheduling transactions; 359 // when it is really time to animate, this will be set to 360 // a real animation and the next call will execute normally. 361 return false; 362 } 363 364 if ((mAppToken.allDrawn || animating || mAppToken.startingDisplayed) 365 && animation != null) { 366 if (!animating) { 367 if (DEBUG_ANIM) Slog.v(TAG, 368 "Starting animation in " + mAppToken + 369 " @ " + currentTime + " scale=" 370 + mService.getTransitionAnimationScaleLocked() 371 + " allDrawn=" + mAppToken.allDrawn + " animating=" + animating); 372 long correction = getStartTimeCorrection(); 373 animation.setStartTime(currentTime + correction); 374 animating = true; 375 if (thumbnail != null) { 376 thumbnail.show(); 377 thumbnailAnimation.setStartTime(currentTime + correction); 378 } 379 mSkipFirstFrame = false; 380 } 381 if (stepAnimation(currentTime)) { 382 // animation isn't over, step any thumbnail and that's 383 // it for now. 384 if (thumbnail != null) { 385 stepThumbnailAnimation(currentTime); 386 } 387 return true; 388 } 389 } 390 } else if (animation != null) { 391 // If the display is frozen, and there is a pending animation, 392 // clear it and make sure we run the cleanup code. 393 animating = true; 394 animation = null; 395 } 396 397 hasTransformation = false; 398 399 if (!animating && animation == null) { 400 return false; 401 } 402 403 mAppToken.setAppLayoutChanges(FINISH_LAYOUT_REDO_ANIM, "AppWindowToken"); 404 405 clearAnimation(); 406 animating = false; 407 if (animLayerAdjustment != 0) { 408 animLayerAdjustment = 0; 409 updateLayers(); 410 } 411 if (mService.mInputMethodTarget != null 412 && mService.mInputMethodTarget.mAppToken == mAppToken) { 413 mAppToken.getDisplayContent().computeImeTarget(true /* updateImeTarget */); 414 } 415 416 if (DEBUG_ANIM) Slog.v(TAG, "Animation done in " + mAppToken 417 + ": reportedVisible=" + mAppToken.reportedVisible 418 + " okToDisplay=" + mService.okToDisplay() 419 + " startingDisplayed=" + mAppToken.startingDisplayed); 420 421 transformation.clear(); 422 423 final int numAllAppWinAnimators = mAllAppWinAnimators.size(); 424 for (int i = 0; i < numAllAppWinAnimators; i++) { 425 mAllAppWinAnimators.get(i).mWin.onExitAnimationDone(); 426 } 427 mService.mAppTransition.notifyAppTransitionFinishedLocked(mAppToken.token); 428 return false; 429 } 430 431 // This must be called while inside a transaction. 432 boolean showAllWindowsLocked() { 433 boolean isAnimating = false; 434 final int NW = mAllAppWinAnimators.size(); 435 for (int i=0; i<NW; i++) { 436 WindowStateAnimator winAnimator = mAllAppWinAnimators.get(i); 437 if (DEBUG_VISIBILITY) Slog.v(TAG, "performing show on: " + winAnimator); 438 winAnimator.mWin.performShowLocked(); 439 isAnimating |= winAnimator.isAnimationSet(); 440 } 441 return isAnimating; 442 } 443 444 void dump(PrintWriter pw, String prefix, boolean dumpAll) { 445 pw.print(prefix); pw.print("mAppToken="); pw.println(mAppToken); 446 pw.print(prefix); pw.print("mAnimator="); pw.println(mAnimator); 447 pw.print(prefix); pw.print("freezingScreen="); pw.print(freezingScreen); 448 pw.print(" allDrawn="); pw.print(allDrawn); 449 pw.print(" animLayerAdjustment="); pw.println(animLayerAdjustment); 450 if (lastFreezeDuration != 0) { 451 pw.print(prefix); pw.print("lastFreezeDuration="); 452 TimeUtils.formatDuration(lastFreezeDuration, pw); pw.println(); 453 } 454 if (animating || animation != null) { 455 pw.print(prefix); pw.print("animating="); pw.println(animating); 456 pw.print(prefix); pw.print("animation="); pw.println(animation); 457 pw.print(prefix); pw.print("mTransit="); pw.println(mTransit); 458 pw.print(prefix); pw.print("mTransitFlags="); pw.println(mTransitFlags); 459 } 460 if (hasTransformation) { 461 pw.print(prefix); pw.print("XForm: "); 462 transformation.printShortString(pw); 463 pw.println(); 464 } 465 if (thumbnail != null) { 466 pw.print(prefix); pw.print("thumbnail="); pw.print(thumbnail); 467 pw.print(" layer="); pw.println(thumbnailLayer); 468 pw.print(prefix); pw.print("thumbnailAnimation="); pw.println(thumbnailAnimation); 469 pw.print(prefix); pw.print("thumbnailTransformation="); 470 pw.println(thumbnailTransformation.toShortString()); 471 } 472 for (int i=0; i<mAllAppWinAnimators.size(); i++) { 473 WindowStateAnimator wanim = mAllAppWinAnimators.get(i); 474 pw.print(prefix); pw.print("App Win Anim #"); pw.print(i); 475 pw.print(": "); pw.println(wanim); 476 } 477 } 478 479 void startProlongAnimation(int prolongType) { 480 mProlongAnimation = prolongType; 481 mClearProlongedAnimation = false; 482 } 483 484 void endProlongedAnimation() { 485 mProlongAnimation = PROLONG_ANIMATION_DISABLED; 486 } 487 488 // This is an animation that does nothing: it just immediately finishes 489 // itself every time it is called. It is used as a stub animation in cases 490 // where we want to synchronize multiple things that may be animating. 491 static final class DummyAnimation extends Animation { 492 @Override 493 public boolean getTransformation(long currentTime, Transformation outTransformation) { 494 return false; 495 } 496 } 497 498} 499