DockedStackDividerController.java revision eb88d83fc5da8ea05033c03bbb9f0d4b804ba162
1/* 2 * Copyright (C) 2012 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.app.ActivityManager.StackId.DOCKED_STACK_ID; 20import static android.app.ActivityManager.StackId.INVALID_STACK_ID; 21import static android.view.WindowManager.DOCKED_BOTTOM; 22import static android.view.WindowManager.DOCKED_LEFT; 23import static android.view.WindowManager.DOCKED_RIGHT; 24import static android.view.WindowManager.DOCKED_TOP; 25import static com.android.server.wm.AppTransition.DEFAULT_APP_TRANSITION_DURATION; 26import static com.android.server.wm.AppTransition.TOUCH_RESPONSE_INTERPOLATOR; 27import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME; 28import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM; 29 30import android.content.Context; 31import android.graphics.Rect; 32import android.os.RemoteCallbackList; 33import android.os.RemoteException; 34import android.util.ArraySet; 35import android.util.Slog; 36import android.view.DisplayInfo; 37import android.view.IDockedStackListener; 38import android.view.SurfaceControl; 39import android.view.animation.AnimationUtils; 40import android.view.animation.Interpolator; 41import android.view.animation.PathInterpolator; 42 43import com.android.server.wm.DimLayer.DimLayerUser; 44 45import java.util.ArrayList; 46 47/** 48 * Keeps information about the docked stack divider. 49 */ 50public class DockedStackDividerController implements DimLayerUser { 51 52 private static final String TAG = TAG_WITH_CLASS_NAME ? "DockedStackDividerController" : TAG_WM; 53 54 /** 55 * The fraction during the maximize/clip reveal animation the divider meets the edge of the clip 56 * revealing surface at the earliest. 57 */ 58 private static final float CLIP_REVEAL_MEET_EARLIEST = 0.6f; 59 60 /** 61 * The fraction during the maximize/clip reveal animation the divider meets the edge of the clip 62 * revealing surface at the latest. 63 */ 64 private static final float CLIP_REVEAL_MEET_LAST = 1f; 65 66 /** 67 * If the app translates at least CLIP_REVEAL_MEET_FRACTION_MIN * minimize distance, we start 68 * meet somewhere between {@link #CLIP_REVEAL_MEET_LAST} and {@link #CLIP_REVEAL_MEET_EARLIEST}. 69 */ 70 private static final float CLIP_REVEAL_MEET_FRACTION_MIN = 0.4f; 71 72 /** 73 * If the app translates equals or more than CLIP_REVEAL_MEET_FRACTION_MIN * minimize distance, 74 * we meet at {@link #CLIP_REVEAL_MEET_EARLIEST}. 75 */ 76 private static final float CLIP_REVEAL_MEET_FRACTION_MAX = 0.8f; 77 78 private static final Interpolator IME_ADJUST_ENTRY_INTERPOLATOR = 79 new PathInterpolator(0.1f, 0f, 0.1f, 1f); 80 81 private static final long IME_ADJUST_DURATION = 280; 82 83 private final WindowManagerService mService; 84 private final DisplayContent mDisplayContent; 85 private int mDividerWindowWidth; 86 private int mDividerInsets; 87 private boolean mResizing; 88 private WindowState mWindow; 89 private final Rect mTmpRect = new Rect(); 90 private final Rect mTmpRect2 = new Rect(); 91 private final Rect mLastRect = new Rect(); 92 private boolean mLastVisibility = false; 93 private final RemoteCallbackList<IDockedStackListener> mDockedStackListeners 94 = new RemoteCallbackList<>(); 95 private final DimLayer mDimLayer; 96 97 private boolean mMinimizedDock; 98 private boolean mAnimatingForMinimizedDockedStack; 99 private boolean mAnimationStarted; 100 private long mAnimationStartTime; 101 private float mAnimationStart; 102 private float mAnimationTarget; 103 private long mAnimationDuration; 104 private final Interpolator mMinimizedDockInterpolator; 105 private float mMaximizeMeetFraction; 106 private final Rect mTouchRegion = new Rect(); 107 private boolean mAnimatingForIme; 108 private boolean mAdjustedForIme; 109 110 DockedStackDividerController(WindowManagerService service, DisplayContent displayContent) { 111 mService = service; 112 mDisplayContent = displayContent; 113 final Context context = service.mContext; 114 mDimLayer = new DimLayer(displayContent.mService, this, displayContent.getDisplayId(), 115 "DockedStackDim"); 116 mMinimizedDockInterpolator = AnimationUtils.loadInterpolator( 117 context, android.R.interpolator.fast_out_slow_in); 118 loadDimens(); 119 } 120 121 private void loadDimens() { 122 final Context context = mService.mContext; 123 mDividerWindowWidth = context.getResources().getDimensionPixelSize( 124 com.android.internal.R.dimen.docked_stack_divider_thickness); 125 mDividerInsets = context.getResources().getDimensionPixelSize( 126 com.android.internal.R.dimen.docked_stack_divider_insets); 127 } 128 129 void onConfigurationChanged() { 130 loadDimens(); 131 } 132 133 boolean isResizing() { 134 return mResizing; 135 } 136 137 int getContentWidth() { 138 return mDividerWindowWidth - 2 * mDividerInsets; 139 } 140 141 int getContentInsets() { 142 return mDividerInsets; 143 } 144 145 void setResizing(boolean resizing) { 146 if (mResizing != resizing) { 147 mResizing = resizing; 148 resetDragResizingChangeReported(); 149 } 150 } 151 152 void setTouchRegion(Rect touchRegion) { 153 mTouchRegion.set(touchRegion); 154 } 155 156 void getTouchRegion(Rect outRegion) { 157 outRegion.set(mTouchRegion); 158 outRegion.offset(mWindow.getFrameLw().left, mWindow.getFrameLw().top); 159 } 160 161 private void resetDragResizingChangeReported() { 162 final WindowList windowList = mDisplayContent.getWindowList(); 163 for (int i = windowList.size() - 1; i >= 0; i--) { 164 windowList.get(i).resetDragResizingChangeReported(); 165 } 166 } 167 168 void setWindow(WindowState window) { 169 mWindow = window; 170 reevaluateVisibility(false); 171 } 172 173 void reevaluateVisibility(boolean force) { 174 if (mWindow == null) { 175 return; 176 } 177 TaskStack stack = mDisplayContent.mService.mStackIdToStack.get(DOCKED_STACK_ID); 178 179 // If the stack is invisible, we policy force hide it in WindowAnimator.shouldForceHide 180 final boolean visible = stack != null; 181 if (mLastVisibility == visible && !force) { 182 return; 183 } 184 mLastVisibility = visible; 185 notifyDockedDividerVisibilityChanged(visible); 186 if (!visible) { 187 setResizeDimLayer(false, INVALID_STACK_ID, 0f); 188 } 189 } 190 191 boolean wasVisible() { 192 return mLastVisibility; 193 } 194 195 void setAdjustedForIme(boolean adjusted, boolean animate) { 196 if (mAdjustedForIme != adjusted) { 197 mAdjustedForIme = adjusted; 198 if (animate) { 199 startImeAdjustAnimation(adjusted ? 0 : 1, adjusted ? 1 : 0); 200 } 201 } 202 } 203 204 void positionDockedStackedDivider(Rect frame) { 205 TaskStack stack = mDisplayContent.getDockedStackLocked(); 206 if (stack == null) { 207 // Unfortunately we might end up with still having a divider, even though the underlying 208 // stack was already removed. This is because we are on AM thread and the removal of the 209 // divider was deferred to WM thread and hasn't happened yet. In that case let's just 210 // keep putting it in the same place it was before the stack was removed to have 211 // continuity and prevent it from jumping to the center. It will get hidden soon. 212 frame.set(mLastRect); 213 return; 214 } else { 215 stack.getDimBounds(mTmpRect); 216 } 217 int side = stack.getDockSide(); 218 switch (side) { 219 case DOCKED_LEFT: 220 frame.set(mTmpRect.right - mDividerInsets, frame.top, 221 mTmpRect.right + frame.width() - mDividerInsets, frame.bottom); 222 break; 223 case DOCKED_TOP: 224 frame.set(frame.left, mTmpRect.bottom - mDividerInsets, 225 mTmpRect.right, mTmpRect.bottom + frame.height() - mDividerInsets); 226 break; 227 case DOCKED_RIGHT: 228 frame.set(mTmpRect.left - frame.width() + mDividerInsets, frame.top, 229 mTmpRect.left + mDividerInsets, frame.bottom); 230 break; 231 case DOCKED_BOTTOM: 232 frame.set(frame.left, mTmpRect.top - frame.height() + mDividerInsets, 233 frame.right, mTmpRect.top + mDividerInsets); 234 break; 235 } 236 mLastRect.set(frame); 237 } 238 239 void notifyDockedDividerVisibilityChanged(boolean visible) { 240 final int size = mDockedStackListeners.beginBroadcast(); 241 for (int i = 0; i < size; ++i) { 242 final IDockedStackListener listener = mDockedStackListeners.getBroadcastItem(i); 243 try { 244 listener.onDividerVisibilityChanged(visible); 245 } catch (RemoteException e) { 246 Slog.e(TAG_WM, "Error delivering divider visibility changed event.", e); 247 } 248 } 249 mDockedStackListeners.finishBroadcast(); 250 } 251 252 void notifyDockedStackExistsChanged(boolean exists) { 253 final int size = mDockedStackListeners.beginBroadcast(); 254 for (int i = 0; i < size; ++i) { 255 final IDockedStackListener listener = mDockedStackListeners.getBroadcastItem(i); 256 try { 257 listener.onDockedStackExistsChanged(exists); 258 } catch (RemoteException e) { 259 Slog.e(TAG_WM, "Error delivering docked stack exists changed event.", e); 260 } 261 } 262 mDockedStackListeners.finishBroadcast(); 263 if (!exists) { 264 setMinimizedDockedStack(false); 265 } 266 } 267 268 void notifyDockedStackMinimizedChanged(boolean minimizedDock, long animDuration) { 269 final int size = mDockedStackListeners.beginBroadcast(); 270 for (int i = 0; i < size; ++i) { 271 final IDockedStackListener listener = mDockedStackListeners.getBroadcastItem(i); 272 try { 273 listener.onDockedStackMinimizedChanged(minimizedDock, animDuration); 274 } catch (RemoteException e) { 275 Slog.e(TAG_WM, "Error delivering minimized dock changed event.", e); 276 } 277 } 278 mDockedStackListeners.finishBroadcast(); 279 } 280 281 void notifyDockSideChanged(int newDockSide) { 282 final int size = mDockedStackListeners.beginBroadcast(); 283 for (int i = 0; i < size; ++i) { 284 final IDockedStackListener listener = mDockedStackListeners.getBroadcastItem(i); 285 try { 286 listener.onDockSideChanged(newDockSide); 287 } catch (RemoteException e) { 288 Slog.e(TAG_WM, "Error delivering dock side changed event.", e); 289 } 290 } 291 mDockedStackListeners.finishBroadcast(); 292 } 293 294 void registerDockedStackListener(IDockedStackListener listener) { 295 mDockedStackListeners.register(listener); 296 notifyDockedDividerVisibilityChanged(wasVisible()); 297 notifyDockedStackExistsChanged( 298 mDisplayContent.mService.mStackIdToStack.get(DOCKED_STACK_ID) != null); 299 notifyDockedStackMinimizedChanged(mMinimizedDock, 0 /* animDuration */); 300 } 301 302 void setResizeDimLayer(boolean visible, int targetStackId, float alpha) { 303 SurfaceControl.openTransaction(); 304 final TaskStack stack = mDisplayContent.mService.mStackIdToStack.get(targetStackId); 305 final TaskStack dockedStack = mDisplayContent.getDockedStackLocked(); 306 boolean visibleAndValid = visible && stack != null && dockedStack != null; 307 if (visibleAndValid) { 308 stack.getDimBounds(mTmpRect); 309 if (mTmpRect.height() > 0 && mTmpRect.width() > 0) { 310 mDimLayer.setBounds(mTmpRect); 311 mDimLayer.show(mDisplayContent.mService.mLayersController.getResizeDimLayer(), 312 alpha, 0 /* duration */); 313 } else { 314 visibleAndValid = false; 315 } 316 } 317 if (!visibleAndValid) { 318 mDimLayer.hide(); 319 } 320 SurfaceControl.closeTransaction(); 321 } 322 323 /** 324 * Notifies the docked stack divider controller of a visibility change that happens without 325 * an animation. 326 */ 327 void notifyAppVisibilityChanged(AppWindowToken wtoken, boolean visible) { 328 final Task task = wtoken.mTask; 329 if (!task.isHomeTask() || !task.isVisibleForUser()) { 330 return; 331 } 332 333 // If the stack is completely offscreen, this might just be an intermediate state when 334 // docking a task/launching recents at the same time, but home doesn't actually get 335 // visible after the state settles in. 336 if (isWithinDisplay(task) 337 && mDisplayContent.getDockedStackVisibleForUserLocked() != null) { 338 setMinimizedDockedStack(visible, false /* animate */); 339 } 340 } 341 342 void notifyAppTransitionStarting(ArraySet<AppWindowToken> openingApps, 343 ArraySet<AppWindowToken> closingApps) { 344 if (containsHomeTaskWithinDisplay(openingApps)) { 345 setMinimizedDockedStack(true /* minimized */, true /* animate */); 346 } else if (containsHomeTaskWithinDisplay(closingApps)) { 347 setMinimizedDockedStack(false /* minimized */, true /* animate */); 348 } 349 } 350 351 private boolean containsHomeTaskWithinDisplay(ArraySet<AppWindowToken> apps) { 352 for (int i = apps.size() - 1; i >= 0; i--) { 353 final Task task = apps.valueAt(i).mTask; 354 if (task != null && task.isHomeTask()) { 355 return isWithinDisplay(task); 356 } 357 } 358 return false; 359 } 360 361 private boolean isWithinDisplay(Task task) { 362 task.mStack.getBounds(mTmpRect); 363 mDisplayContent.getLogicalDisplayRect(mTmpRect2); 364 return mTmpRect.intersect(mTmpRect2); 365 } 366 367 /** 368 * Sets whether the docked stack is currently in a minimized state, i.e. all the tasks in the 369 * docked stack are heavily clipped so you can only see a minimal peek state. 370 * 371 * @param minimizedDock Whether the docked stack is currently minimized. 372 * @param animate Whether to animate the change. 373 */ 374 private void setMinimizedDockedStack(boolean minimizedDock, boolean animate) { 375 final boolean wasMinimized = mMinimizedDock; 376 mMinimizedDock = minimizedDock; 377 if (minimizedDock == wasMinimized 378 || mDisplayContent.getDockedStackVisibleForUserLocked() == null) { 379 return; 380 } 381 382 clearImeAdjustAnimation(); 383 if (minimizedDock) { 384 if (animate) { 385 startAdjustAnimation(0f, 1f); 386 } else { 387 setMinimizedDockedStack(true); 388 } 389 } else { 390 if (animate) { 391 startAdjustAnimation(1f, 0f); 392 } else { 393 setMinimizedDockedStack(false); 394 } 395 } 396 } 397 398 private void clearImeAdjustAnimation() { 399 final ArrayList<TaskStack> stacks = mDisplayContent.getStacks(); 400 for (int i = stacks.size() - 1; i >= 0; --i) { 401 final TaskStack stack = stacks.get(i); 402 if (stack != null && stack.isAdjustedForIme()) { 403 stack.resetAdjustedForIme(true /* adjustBoundsNow */); 404 } 405 } 406 mAnimatingForIme = false; 407 } 408 409 private void startAdjustAnimation(float from, float to) { 410 mAnimatingForMinimizedDockedStack = true; 411 mAnimationStarted = false; 412 mAnimationStart = from; 413 mAnimationTarget = to; 414 } 415 416 private void startImeAdjustAnimation(float from, float to) { 417 mAnimatingForIme = true; 418 mAnimationStarted = false; 419 mAnimationStart = from; 420 mAnimationTarget = to; 421 } 422 423 private void setMinimizedDockedStack(boolean minimized) { 424 final TaskStack stack = mDisplayContent.getDockedStackVisibleForUserLocked(); 425 notifyDockedStackMinimizedChanged(minimized, 0); 426 if (stack == null) { 427 return; 428 } 429 if (stack.setAdjustedForMinimizedDock(minimized ? 1f : 0f)) { 430 mService.mWindowPlacerLocked.performSurfacePlacement(); 431 } 432 } 433 434 private boolean isAnimationMaximizing() { 435 return mAnimationTarget == 0f; 436 } 437 438 public boolean animate(long now) { 439 if (mAnimatingForMinimizedDockedStack) { 440 return animateForMinimizedDockedStack(now); 441 } else if (mAnimatingForIme) { 442 return animateForIme(now); 443 } else { 444 return false; 445 } 446 } 447 448 private boolean animateForIme(long now) { 449 if (!mAnimationStarted) { 450 mAnimationStarted = true; 451 mAnimationStartTime = now; 452 mAnimationDuration = (long) 453 (IME_ADJUST_DURATION * mService.getWindowAnimationScaleLocked()); 454 } 455 float t = Math.min(1f, (float) (now - mAnimationStartTime) / mAnimationDuration); 456 t = (mAnimationTarget == 1f ? IME_ADJUST_ENTRY_INTERPOLATOR : TOUCH_RESPONSE_INTERPOLATOR) 457 .getInterpolation(t); 458 final ArrayList<TaskStack> stacks = mDisplayContent.getStacks(); 459 boolean updated = false; 460 for (int i = stacks.size() - 1; i >= 0; --i) { 461 final TaskStack stack = stacks.get(i); 462 if (stack != null && stack.isAdjustedForIme()) { 463 if (t >= 1f && mAnimationTarget == 0f) { 464 stack.resetAdjustedForIme(true /* adjustBoundsNow */); 465 updated = true; 466 } else { 467 updated |= stack.updateAdjustForIme(getInterpolatedAnimationValue(t)); 468 } 469 } 470 } 471 if (updated) { 472 mService.mWindowPlacerLocked.performSurfacePlacement(); 473 } 474 if (t >= 1.0f) { 475 mAnimatingForIme = false; 476 return false; 477 } else { 478 return true; 479 } 480 } 481 482 private boolean animateForMinimizedDockedStack(long now) { 483 final TaskStack stack = mDisplayContent.getDockedStackVisibleForUserLocked(); 484 if (!mAnimationStarted) { 485 mAnimationStarted = true; 486 mAnimationStartTime = now; 487 final long transitionDuration = isAnimationMaximizing() 488 ? mService.mAppTransition.getLastClipRevealTransitionDuration() 489 : DEFAULT_APP_TRANSITION_DURATION; 490 mAnimationDuration = (long) 491 (transitionDuration * mService.getTransitionAnimationScaleLocked()); 492 mMaximizeMeetFraction = getClipRevealMeetFraction(stack); 493 notifyDockedStackMinimizedChanged(mMinimizedDock, 494 (long) (mAnimationDuration * mMaximizeMeetFraction)); 495 } 496 float t = Math.min(1f, (float) (now - mAnimationStartTime) / mAnimationDuration); 497 t = (isAnimationMaximizing() ? TOUCH_RESPONSE_INTERPOLATOR : mMinimizedDockInterpolator) 498 .getInterpolation(t); 499 if (stack != null) { 500 if (stack.setAdjustedForMinimizedDock(getMinimizeAmount(stack, t))) { 501 mService.mWindowPlacerLocked.performSurfacePlacement(); 502 } 503 } 504 if (t >= 1.0f) { 505 mAnimatingForMinimizedDockedStack = false; 506 return false; 507 } else { 508 return true; 509 } 510 } 511 512 private float getInterpolatedAnimationValue(float t) { 513 return t * mAnimationTarget + (1 - t) * mAnimationStart; 514 } 515 516 /** 517 * Gets the amount how much to minimize a stack depending on the interpolated fraction t. 518 */ 519 private float getMinimizeAmount(TaskStack stack, float t) { 520 final float naturalAmount = getInterpolatedAnimationValue(t); 521 if (isAnimationMaximizing()) { 522 return adjustMaximizeAmount(stack, t, naturalAmount); 523 } else { 524 return naturalAmount; 525 } 526 } 527 528 /** 529 * When maximizing the stack during a clip reveal transition, this adjusts the minimize amount 530 * during the transition such that the edge of the clip reveal rect is met earlier in the 531 * transition so we don't create a visible "hole", but only if both the clip reveal and the 532 * docked stack divider start from about the same portion on the screen. 533 */ 534 private float adjustMaximizeAmount(TaskStack stack, float t, float naturalAmount) { 535 if (mMaximizeMeetFraction == 1f) { 536 return naturalAmount; 537 } 538 final int minimizeDistance = stack.getMinimizeDistance(); 539 float startPrime = mService.mAppTransition.getLastClipRevealMaxTranslation() 540 / (float) minimizeDistance; 541 final float amountPrime = t * mAnimationTarget + (1 - t) * startPrime; 542 final float t2 = Math.min(t / mMaximizeMeetFraction, 1); 543 return amountPrime * t2 + naturalAmount * (1 - t2); 544 } 545 546 /** 547 * Retrieves the animation fraction at which the docked stack has to meet the clip reveal 548 * edge. See {@link #adjustMaximizeAmount}. 549 */ 550 private float getClipRevealMeetFraction(TaskStack stack) { 551 if (!isAnimationMaximizing() || stack == null || 552 !mService.mAppTransition.hadClipRevealAnimation()) { 553 return 1f; 554 } 555 final int minimizeDistance = stack.getMinimizeDistance(); 556 final float fraction = Math.abs(mService.mAppTransition.getLastClipRevealMaxTranslation()) 557 / (float) minimizeDistance; 558 final float t = Math.max(0, Math.min(1, (fraction - CLIP_REVEAL_MEET_FRACTION_MIN) 559 / (CLIP_REVEAL_MEET_FRACTION_MAX - CLIP_REVEAL_MEET_FRACTION_MIN))); 560 return CLIP_REVEAL_MEET_EARLIEST 561 + (1 - t) * (CLIP_REVEAL_MEET_LAST - CLIP_REVEAL_MEET_EARLIEST); 562 } 563 564 @Override 565 public boolean isFullscreen() { 566 return false; 567 } 568 569 @Override 570 public DisplayInfo getDisplayInfo() { 571 return mDisplayContent.getDisplayInfo(); 572 } 573 574 @Override 575 public void getDimBounds(Rect outBounds) { 576 // This dim layer user doesn't need this. 577 } 578 579 @Override 580 public String toShortString() { 581 return TAG; 582 } 583} 584