AppWindowAnimator.java revision 5c80c41ee0ef808e7c8234087c5538531a16f5bb
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; 26import static com.android.server.wm.WindowStateAnimator.STACK_CLIP_BEFORE_ANIM; 27 28import android.graphics.Matrix; 29import android.util.Slog; 30import android.util.TimeUtils; 31import android.view.Choreographer; 32import android.view.Display; 33import android.view.SurfaceControl; 34import android.view.WindowManagerPolicy; 35import android.view.animation.Animation; 36import android.view.animation.Transformation; 37 38import java.io.PrintWriter; 39import java.util.ArrayList; 40 41public class AppWindowAnimator { 42 static final String TAG = TAG_WITH_CLASS_NAME ? "AppWindowAnimator" : TAG_WM; 43 44 private static final int PROLONG_ANIMATION_DISABLED = 0; 45 static final int PROLONG_ANIMATION_AT_END = 1; 46 static final int PROLONG_ANIMATION_AT_START = 2; 47 48 final AppWindowToken mAppToken; 49 final WindowManagerService mService; 50 final WindowAnimator mAnimator; 51 52 boolean animating; 53 boolean wasAnimating; 54 Animation animation; 55 boolean hasTransformation; 56 final Transformation transformation = new Transformation(); 57 58 // Have we been asked to have this token keep the screen frozen? 59 // Protect with mAnimator. 60 boolean freezingScreen; 61 62 /** 63 * How long we last kept the screen frozen. 64 */ 65 int lastFreezeDuration; 66 67 // Offset to the window of all layers in the token, for use by 68 // AppWindowToken animations. 69 int animLayerAdjustment; 70 71 // Propagated from AppWindowToken.allDrawn, to determine when 72 // the state changes. 73 boolean allDrawn; 74 75 // Special surface for thumbnail animation. If deferThumbnailDestruction is enabled, then we 76 // will make sure that the thumbnail is destroyed after the other surface is completed. This 77 // requires that the duration of the two animations are the same. 78 SurfaceControl thumbnail; 79 int thumbnailTransactionSeq; 80 int thumbnailLayer; 81 int thumbnailForceAboveLayer; 82 Animation thumbnailAnimation; 83 final Transformation thumbnailTransformation = new Transformation(); 84 // This flag indicates that the destruction of the thumbnail surface is synchronized with 85 // another animation, so defer the destruction of this thumbnail surface for a single frame 86 // after the secondary animation completes. 87 boolean deferThumbnailDestruction; 88 // This flag is set if the animator has deferThumbnailDestruction set and has reached the final 89 // frame of animation. It will extend the animation by one frame and then clean up afterwards. 90 boolean deferFinalFrameCleanup; 91 // If true when the animation hits the last frame, it will keep running on that last frame. 92 // This is used to synchronize animation with Recents and we wait for Recents to tell us to 93 // finish or for a new animation be set as fail-safe mechanism. 94 private int mProlongAnimation; 95 // Whether the prolong animation can be removed when animation is set. The purpose of this is 96 // that if recents doesn't tell us to remove the prolonged animation, we will get rid of it 97 // when new animation is set. 98 private boolean mClearProlongedAnimation; 99 100 /** WindowStateAnimator from mAppAnimator.allAppWindows as of last performLayout */ 101 ArrayList<WindowStateAnimator> mAllAppWinAnimators = new ArrayList<>(); 102 103 /** True if the current animation was transferred from another AppWindowAnimator. 104 * See {@link #transferCurrentAnimation}*/ 105 boolean usingTransferredAnimation = false; 106 107 private boolean mSkipFirstFrame = false; 108 private int mStackClip = STACK_CLIP_BEFORE_ANIM; 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 int stackClip) { 120 if (WindowManagerService.localLOGV) Slog.v(TAG, "Setting animation in " + mAppToken 121 + ": " + anim + " wxh=" + width + "x" + height 122 + " isVisible=" + mAppToken.isVisible()); 123 animation = anim; 124 animating = false; 125 if (!anim.isInitialized()) { 126 anim.initialize(width, height, width, height); 127 } 128 anim.restrictDuration(WindowManagerService.MAX_ANIMATION_DURATION); 129 anim.scaleCurrentDuration(mService.getTransitionAnimationScaleLocked()); 130 int zorder = anim.getZAdjustment(); 131 int adj = 0; 132 if (zorder == Animation.ZORDER_TOP) { 133 adj = TYPE_LAYER_OFFSET; 134 } else if (zorder == Animation.ZORDER_BOTTOM) { 135 adj = -TYPE_LAYER_OFFSET; 136 } 137 138 if (animLayerAdjustment != adj) { 139 animLayerAdjustment = adj; 140 updateLayers(); 141 } 142 // Start out animation gone if window is gone, or visible if window is visible. 143 transformation.clear(); 144 transformation.setAlpha(mAppToken.isVisible() ? 1 : 0); 145 hasTransformation = true; 146 mStackClip = stackClip; 147 148 this.mSkipFirstFrame = skipFirstFrame; 149 150 if (!mAppToken.appFullscreen) { 151 anim.setBackgroundColor(0); 152 } 153 if (mClearProlongedAnimation) { 154 mProlongAnimation = PROLONG_ANIMATION_DISABLED; 155 } else { 156 mClearProlongedAnimation = true; 157 } 158 159 // Since we are finally starting our animation, we don't need the logic anymore to prevent 160 // the app from showing again if we just moved between stacks. See 161 // {@link WindowState#notifyMovedInStack}. 162 for (int i = mAppToken.allAppWindows.size() - 1; i >= 0; i--) { 163 mAppToken.allAppWindows.get(i).resetJustMovedInStack(); 164 } 165 } 166 167 public void setDummyAnimation() { 168 if (WindowManagerService.localLOGV) Slog.v(TAG, "Setting dummy animation in " + mAppToken 169 + " isVisible=" + mAppToken.isVisible()); 170 animation = sDummyAnimation; 171 hasTransformation = true; 172 transformation.clear(); 173 transformation.setAlpha(mAppToken.isVisible() ? 1 : 0); 174 } 175 176 void setNullAnimation() { 177 animation = null; 178 usingTransferredAnimation = false; 179 } 180 181 public void clearAnimation() { 182 if (animation != null) { 183 animating = true; 184 } 185 clearThumbnail(); 186 setNullAnimation(); 187 if (mAppToken.deferClearAllDrawn) { 188 mAppToken.allDrawn = false; 189 mAppToken.deferClearAllDrawn = false; 190 } 191 mStackClip = STACK_CLIP_BEFORE_ANIM; 192 } 193 194 public boolean isAnimating() { 195 return animation != null || mAppToken.inPendingTransaction; 196 } 197 198 public void clearThumbnail() { 199 if (thumbnail != null) { 200 thumbnail.hide(); 201 mService.mWindowPlacerLocked.destroyAfterTransaction(thumbnail); 202 thumbnail = null; 203 } 204 deferThumbnailDestruction = false; 205 } 206 207 int getStackClip() { 208 return mStackClip; 209 } 210 211 void transferCurrentAnimation( 212 AppWindowAnimator toAppAnimator, WindowStateAnimator transferWinAnimator) { 213 214 if (animation != null) { 215 toAppAnimator.animation = animation; 216 toAppAnimator.animating = animating; 217 toAppAnimator.animLayerAdjustment = animLayerAdjustment; 218 setNullAnimation(); 219 animLayerAdjustment = 0; 220 toAppAnimator.updateLayers(); 221 updateLayers(); 222 toAppAnimator.usingTransferredAnimation = true; 223 } 224 if (transferWinAnimator != null) { 225 mAllAppWinAnimators.remove(transferWinAnimator); 226 toAppAnimator.mAllAppWinAnimators.add(transferWinAnimator); 227 transferWinAnimator.mAppAnimator = toAppAnimator; 228 } 229 } 230 231 void updateLayers() { 232 final int windowCount = mAppToken.allAppWindows.size(); 233 final int adj = animLayerAdjustment; 234 thumbnailLayer = -1; 235 final WallpaperController wallpaperController = mService.mWallpaperControllerLocked; 236 for (int i = 0; i < windowCount; i++) { 237 final WindowState w = mAppToken.allAppWindows.get(i); 238 final WindowStateAnimator winAnimator = w.mWinAnimator; 239 winAnimator.mAnimLayer = w.mLayer + adj; 240 if (winAnimator.mAnimLayer > thumbnailLayer) { 241 thumbnailLayer = winAnimator.mAnimLayer; 242 } 243 if (DEBUG_LAYERS) Slog.v(TAG, "Updating layer " + w + ": " + winAnimator.mAnimLayer); 244 if (w == mService.mInputMethodTarget && !mService.mInputMethodTargetWaitingAnim) { 245 mService.mLayersController.setInputMethodAnimLayerAdjustment(adj); 246 } 247 wallpaperController.setAnimLayerAdjustment(w, adj); 248 } 249 } 250 251 private void stepThumbnailAnimation(long currentTime) { 252 thumbnailTransformation.clear(); 253 final long animationFrameTime = getAnimationFrameTime(thumbnailAnimation, currentTime); 254 thumbnailAnimation.getTransformation(animationFrameTime, thumbnailTransformation); 255 256 ScreenRotationAnimation screenRotationAnimation = 257 mAnimator.getScreenRotationAnimationLocked(Display.DEFAULT_DISPLAY); 258 final boolean screenAnimation = screenRotationAnimation != null 259 && screenRotationAnimation.isAnimating(); 260 if (screenAnimation) { 261 thumbnailTransformation.postCompose(screenRotationAnimation.getEnterTransformation()); 262 } 263 // cache often used attributes locally 264 final float tmpFloats[] = mService.mTmpFloats; 265 thumbnailTransformation.getMatrix().getValues(tmpFloats); 266 if (SHOW_TRANSACTIONS) WindowManagerService.logSurface(thumbnail, 267 "thumbnail", "POS " + tmpFloats[Matrix.MTRANS_X] 268 + ", " + tmpFloats[Matrix.MTRANS_Y]); 269 thumbnail.setPosition(tmpFloats[Matrix.MTRANS_X], tmpFloats[Matrix.MTRANS_Y]); 270 if (SHOW_TRANSACTIONS) WindowManagerService.logSurface(thumbnail, 271 "thumbnail", "alpha=" + thumbnailTransformation.getAlpha() 272 + " layer=" + thumbnailLayer 273 + " matrix=[" + tmpFloats[Matrix.MSCALE_X] 274 + "," + tmpFloats[Matrix.MSKEW_Y] 275 + "][" + tmpFloats[Matrix.MSKEW_X] 276 + "," + tmpFloats[Matrix.MSCALE_Y] + "]"); 277 thumbnail.setAlpha(thumbnailTransformation.getAlpha()); 278 if (thumbnailForceAboveLayer > 0) { 279 thumbnail.setLayer(thumbnailForceAboveLayer + 1); 280 } else { 281 // The thumbnail is layered below the window immediately above this 282 // token's anim layer. 283 thumbnail.setLayer(thumbnailLayer + WindowManagerService.WINDOW_LAYER_MULTIPLIER 284 - WindowManagerService.LAYER_OFFSET_THUMBNAIL); 285 } 286 thumbnail.setMatrix(tmpFloats[Matrix.MSCALE_X], tmpFloats[Matrix.MSKEW_Y], 287 tmpFloats[Matrix.MSKEW_X], tmpFloats[Matrix.MSCALE_Y]); 288 thumbnail.setWindowCrop(thumbnailTransformation.getClipRect()); 289 } 290 291 /** 292 * Sometimes we need to synchronize the first frame of animation with some external event, e.g. 293 * Recents hiding some of its content. To achieve this, we prolong the start of the animaiton 294 * and keep producing the first frame of the animation. 295 */ 296 private long getAnimationFrameTime(Animation animation, long currentTime) { 297 if (mProlongAnimation == PROLONG_ANIMATION_AT_START) { 298 animation.setStartTime(currentTime); 299 return currentTime + 1; 300 } 301 return currentTime; 302 } 303 304 private boolean stepAnimation(long currentTime) { 305 if (animation == null) { 306 return false; 307 } 308 transformation.clear(); 309 final long animationFrameTime = getAnimationFrameTime(animation, currentTime); 310 boolean hasMoreFrames = animation.getTransformation(animationFrameTime, transformation); 311 if (!hasMoreFrames) { 312 if (deferThumbnailDestruction && !deferFinalFrameCleanup) { 313 // We are deferring the thumbnail destruction, so extend the animation for one more 314 // (dummy) frame before we clean up 315 deferFinalFrameCleanup = true; 316 hasMoreFrames = true; 317 } else { 318 if (false && DEBUG_ANIM) Slog.v(TAG, 319 "Stepped animation in " + mAppToken + ": more=" + hasMoreFrames + 320 ", xform=" + transformation + ", mProlongAnimation=" + mProlongAnimation); 321 deferFinalFrameCleanup = false; 322 if (mProlongAnimation == PROLONG_ANIMATION_AT_END) { 323 hasMoreFrames = true; 324 } else { 325 setNullAnimation(); 326 clearThumbnail(); 327 if (DEBUG_ANIM) Slog.v(TAG, "Finished animation in " + mAppToken + " @ " 328 + currentTime); 329 } 330 } 331 } 332 hasTransformation = hasMoreFrames; 333 return hasMoreFrames; 334 } 335 336 private long getStartTimeCorrection() { 337 if (mSkipFirstFrame) { 338 339 // If the transition is an animation in which the first frame doesn't change the screen 340 // contents at all, we can just skip it and start at the second frame. So we shift the 341 // start time of the animation forward by minus the frame duration. 342 return -Choreographer.getInstance().getFrameIntervalNanos() / TimeUtils.NANOS_PER_MS; 343 } else { 344 return 0; 345 } 346 } 347 348 // This must be called while inside a transaction. 349 boolean stepAnimationLocked(long currentTime, final int displayId) { 350 if (mService.okToDisplay()) { 351 // We will run animations as long as the display isn't frozen. 352 353 if (animation == sDummyAnimation) { 354 // This guy is going to animate, but not yet. For now count 355 // it as not animating for purposes of scheduling transactions; 356 // when it is really time to animate, this will be set to 357 // a real animation and the next call will execute normally. 358 return false; 359 } 360 361 if ((mAppToken.allDrawn || animating || mAppToken.startingDisplayed) 362 && animation != null) { 363 if (!animating) { 364 if (DEBUG_ANIM) Slog.v(TAG, 365 "Starting animation in " + mAppToken + 366 " @ " + currentTime + " scale=" 367 + mService.getTransitionAnimationScaleLocked() 368 + " allDrawn=" + mAppToken.allDrawn + " animating=" + animating); 369 long correction = getStartTimeCorrection(); 370 animation.setStartTime(currentTime + correction); 371 animating = true; 372 if (thumbnail != null) { 373 thumbnail.show(); 374 thumbnailAnimation.setStartTime(currentTime + correction); 375 } 376 mSkipFirstFrame = false; 377 } 378 if (stepAnimation(currentTime)) { 379 // animation isn't over, step any thumbnail and that's 380 // it for now. 381 if (thumbnail != null) { 382 stepThumbnailAnimation(currentTime); 383 } 384 return true; 385 } 386 } 387 } else if (animation != null) { 388 // If the display is frozen, and there is a pending animation, 389 // clear it and make sure we run the cleanup code. 390 animating = true; 391 animation = null; 392 } 393 394 hasTransformation = false; 395 396 if (!animating && animation == null) { 397 return false; 398 } 399 400 mAnimator.setAppLayoutChanges(this, WindowManagerPolicy.FINISH_LAYOUT_REDO_ANIM, 401 "AppWindowToken", displayId); 402 403 clearAnimation(); 404 animating = false; 405 if (animLayerAdjustment != 0) { 406 animLayerAdjustment = 0; 407 updateLayers(); 408 } 409 if (mService.mInputMethodTarget != null 410 && mService.mInputMethodTarget.mAppToken == mAppToken) { 411 mService.moveInputMethodWindowsIfNeededLocked(true); 412 } 413 414 if (DEBUG_ANIM) Slog.v(TAG, 415 "Animation done in " + mAppToken 416 + ": reportedVisible=" + mAppToken.reportedVisible); 417 418 transformation.clear(); 419 420 final int numAllAppWinAnimators = mAllAppWinAnimators.size(); 421 for (int i = 0; i < numAllAppWinAnimators; i++) { 422 mAllAppWinAnimators.get(i).finishExit(); 423 } 424 mService.mAppTransition.notifyAppTransitionFinishedLocked(mAppToken.token); 425 return false; 426 } 427 428 // This must be called while inside a transaction. 429 boolean showAllWindowsLocked() { 430 boolean isAnimating = false; 431 final int NW = mAllAppWinAnimators.size(); 432 for (int i=0; i<NW; i++) { 433 WindowStateAnimator winAnimator = mAllAppWinAnimators.get(i); 434 if (DEBUG_VISIBILITY) Slog.v(TAG, "performing show on: " + winAnimator); 435 winAnimator.performShowLocked(); 436 isAnimating |= winAnimator.isAnimationSet(); 437 } 438 return isAnimating; 439 } 440 441 void dump(PrintWriter pw, String prefix, boolean dumpAll) { 442 pw.print(prefix); pw.print("mAppToken="); pw.println(mAppToken); 443 pw.print(prefix); pw.print("mAnimator="); pw.println(mAnimator); 444 pw.print(prefix); pw.print("freezingScreen="); pw.print(freezingScreen); 445 pw.print(" allDrawn="); pw.print(allDrawn); 446 pw.print(" animLayerAdjustment="); pw.println(animLayerAdjustment); 447 if (lastFreezeDuration != 0) { 448 pw.print(prefix); pw.print("lastFreezeDuration="); 449 TimeUtils.formatDuration(lastFreezeDuration, pw); pw.println(); 450 } 451 if (animating || animation != null) { 452 pw.print(prefix); pw.print("animating="); pw.println(animating); 453 pw.print(prefix); pw.print("animation="); pw.println(animation); 454 } 455 if (hasTransformation) { 456 pw.print(prefix); pw.print("XForm: "); 457 transformation.printShortString(pw); 458 pw.println(); 459 } 460 if (thumbnail != null) { 461 pw.print(prefix); pw.print("thumbnail="); pw.print(thumbnail); 462 pw.print(" layer="); pw.println(thumbnailLayer); 463 pw.print(prefix); pw.print("thumbnailAnimation="); pw.println(thumbnailAnimation); 464 pw.print(prefix); pw.print("thumbnailTransformation="); 465 pw.println(thumbnailTransformation.toShortString()); 466 } 467 for (int i=0; i<mAllAppWinAnimators.size(); i++) { 468 WindowStateAnimator wanim = mAllAppWinAnimators.get(i); 469 pw.print(prefix); pw.print("App Win Anim #"); pw.print(i); 470 pw.print(": "); pw.println(wanim); 471 } 472 } 473 474 void startProlongAnimation(int prolongType) { 475 mProlongAnimation = prolongType; 476 mClearProlongedAnimation = false; 477 } 478 479 void endProlongedAnimation() { 480 mProlongAnimation = PROLONG_ANIMATION_DISABLED; 481 } 482 483 // This is an animation that does nothing: it just immediately finishes 484 // itself every time it is called. It is used as a stub animation in cases 485 // where we want to synchronize multiple things that may be animating. 486 static final class DummyAnimation extends Animation { 487 @Override 488 public boolean getTransformation(long currentTime, Transformation outTransformation) { 489 return false; 490 } 491 } 492 493} 494