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 17 package com.android.systemui.statusbar.phone; 18 19 import android.animation.Animator; 20 import android.animation.AnimatorListenerAdapter; 21 import android.animation.ObjectAnimator; 22 import android.animation.ValueAnimator; 23 import android.content.Context; 24 import android.content.res.Configuration; 25 import android.content.res.Resources; 26 import android.util.AttributeSet; 27 import android.util.Log; 28 import android.view.InputDevice; 29 import android.view.MotionEvent; 30 import android.view.ViewConfiguration; 31 import android.view.ViewTreeObserver; 32 import android.view.animation.Interpolator; 33 import android.widget.FrameLayout; 34 35 import com.android.systemui.EventLogConstants; 36 import com.android.systemui.EventLogTags; 37 import com.android.systemui.Interpolators; 38 import com.android.systemui.R; 39 import com.android.systemui.classifier.FalsingManager; 40 import com.android.systemui.doze.DozeLog; 41 import com.android.systemui.statusbar.FlingAnimationUtils; 42 import com.android.systemui.statusbar.StatusBarState; 43 import com.android.systemui.statusbar.policy.HeadsUpManager; 44 45 import java.io.FileDescriptor; 46 import java.io.PrintWriter; 47 48 public abstract class PanelView extends FrameLayout { 49 public static final boolean DEBUG = PanelBar.DEBUG; 50 public static final String TAG = PanelView.class.getSimpleName(); 51 logf(String fmt, Object... args)52 private final void logf(String fmt, Object... args) { 53 Log.v(TAG, (mViewName != null ? (mViewName + ": ") : "") + String.format(fmt, args)); 54 } 55 56 protected PhoneStatusBar mStatusBar; 57 protected HeadsUpManager mHeadsUpManager; 58 59 private float mPeekHeight; 60 private float mHintDistance; 61 private float mInitialOffsetOnTouch; 62 private boolean mCollapsedAndHeadsUpOnDown; 63 private float mExpandedFraction = 0; 64 protected float mExpandedHeight = 0; 65 private boolean mPanelClosedOnDown; 66 private boolean mHasLayoutedSinceDown; 67 private float mUpdateFlingVelocity; 68 private boolean mUpdateFlingOnLayout; 69 private boolean mPeekTouching; 70 private boolean mJustPeeked; 71 private boolean mClosing; 72 protected boolean mTracking; 73 private boolean mTouchSlopExceeded; 74 private int mTrackingPointer; 75 protected int mTouchSlop; 76 protected boolean mHintAnimationRunning; 77 private boolean mOverExpandedBeforeFling; 78 private boolean mTouchAboveFalsingThreshold; 79 private int mUnlockFalsingThreshold; 80 private boolean mTouchStartedInEmptyArea; 81 private boolean mMotionAborted; 82 private boolean mUpwardsWhenTresholdReached; 83 private boolean mAnimatingOnDown; 84 85 private ValueAnimator mHeightAnimator; 86 private ObjectAnimator mPeekAnimator; 87 private VelocityTrackerInterface mVelocityTracker; 88 private FlingAnimationUtils mFlingAnimationUtils; 89 private FalsingManager mFalsingManager; 90 91 /** 92 * Whether an instant expand request is currently pending and we are just waiting for layout. 93 */ 94 private boolean mInstantExpanding; 95 96 PanelBar mBar; 97 98 private String mViewName; 99 private float mInitialTouchY; 100 private float mInitialTouchX; 101 private boolean mTouchDisabled; 102 103 private Interpolator mBounceInterpolator; 104 protected KeyguardBottomAreaView mKeyguardBottomArea; 105 106 private boolean mPeekPending; 107 private boolean mCollapseAfterPeek; 108 109 /** 110 * Speed-up factor to be used when {@link #mFlingCollapseRunnable} runs the next time. 111 */ 112 private float mNextCollapseSpeedUpFactor = 1.0f; 113 114 protected boolean mExpanding; 115 private boolean mGestureWaitForTouchSlop; 116 private boolean mIgnoreXTouchSlop; 117 private Runnable mPeekRunnable = new Runnable() { 118 @Override 119 public void run() { 120 mPeekPending = false; 121 runPeekAnimation(); 122 } 123 }; 124 onExpandingFinished()125 protected void onExpandingFinished() { 126 mBar.onExpandingFinished(); 127 } 128 onExpandingStarted()129 protected void onExpandingStarted() { 130 } 131 notifyExpandingStarted()132 private void notifyExpandingStarted() { 133 if (!mExpanding) { 134 mExpanding = true; 135 onExpandingStarted(); 136 } 137 } 138 notifyExpandingFinished()139 protected final void notifyExpandingFinished() { 140 endClosing(); 141 if (mExpanding) { 142 mExpanding = false; 143 onExpandingFinished(); 144 } 145 } 146 schedulePeek()147 private void schedulePeek() { 148 mPeekPending = true; 149 long timeout = ViewConfiguration.getTapTimeout(); 150 postOnAnimationDelayed(mPeekRunnable, timeout); 151 notifyBarPanelExpansionChanged(); 152 } 153 runPeekAnimation()154 private void runPeekAnimation() { 155 mPeekHeight = getPeekHeight(); 156 if (DEBUG) logf("peek to height=%.1f", mPeekHeight); 157 if (mHeightAnimator != null) { 158 return; 159 } 160 mPeekAnimator = ObjectAnimator.ofFloat(this, "expandedHeight", mPeekHeight) 161 .setDuration(250); 162 mPeekAnimator.setInterpolator(Interpolators.LINEAR_OUT_SLOW_IN); 163 mPeekAnimator.addListener(new AnimatorListenerAdapter() { 164 private boolean mCancelled; 165 166 @Override 167 public void onAnimationCancel(Animator animation) { 168 mCancelled = true; 169 } 170 171 @Override 172 public void onAnimationEnd(Animator animation) { 173 mPeekAnimator = null; 174 if (mCollapseAfterPeek && !mCancelled) { 175 postOnAnimation(mPostCollapseRunnable); 176 } 177 mCollapseAfterPeek = false; 178 } 179 }); 180 notifyExpandingStarted(); 181 mPeekAnimator.start(); 182 mJustPeeked = true; 183 } 184 PanelView(Context context, AttributeSet attrs)185 public PanelView(Context context, AttributeSet attrs) { 186 super(context, attrs); 187 mFlingAnimationUtils = new FlingAnimationUtils(context, 0.6f); 188 mBounceInterpolator = new BounceInterpolator(); 189 mFalsingManager = FalsingManager.getInstance(context); 190 } 191 loadDimens()192 protected void loadDimens() { 193 final Resources res = getContext().getResources(); 194 final ViewConfiguration configuration = ViewConfiguration.get(getContext()); 195 mTouchSlop = configuration.getScaledTouchSlop(); 196 mHintDistance = res.getDimension(R.dimen.hint_move_distance); 197 mUnlockFalsingThreshold = res.getDimensionPixelSize(R.dimen.unlock_falsing_threshold); 198 } 199 trackMovement(MotionEvent event)200 private void trackMovement(MotionEvent event) { 201 // Add movement to velocity tracker using raw screen X and Y coordinates instead 202 // of window coordinates because the window frame may be moving at the same time. 203 float deltaX = event.getRawX() - event.getX(); 204 float deltaY = event.getRawY() - event.getY(); 205 event.offsetLocation(deltaX, deltaY); 206 if (mVelocityTracker != null) mVelocityTracker.addMovement(event); 207 event.offsetLocation(-deltaX, -deltaY); 208 } 209 setTouchDisabled(boolean disabled)210 public void setTouchDisabled(boolean disabled) { 211 mTouchDisabled = disabled; 212 } 213 214 @Override onTouchEvent(MotionEvent event)215 public boolean onTouchEvent(MotionEvent event) { 216 if (mInstantExpanding || mTouchDisabled 217 || (mMotionAborted && event.getActionMasked() != MotionEvent.ACTION_DOWN)) { 218 return false; 219 } 220 221 // On expanding, single mouse click expands the panel instead of dragging. 222 if (isFullyCollapsed() && event.isFromSource(InputDevice.SOURCE_MOUSE)) { 223 if (event.getAction() == MotionEvent.ACTION_UP) { 224 expand(true); 225 } 226 return true; 227 } 228 229 /* 230 * We capture touch events here and update the expand height here in case according to 231 * the users fingers. This also handles multi-touch. 232 * 233 * If the user just clicks shortly, we show a quick peek of the shade. 234 * 235 * Flinging is also enabled in order to open or close the shade. 236 */ 237 238 int pointerIndex = event.findPointerIndex(mTrackingPointer); 239 if (pointerIndex < 0) { 240 pointerIndex = 0; 241 mTrackingPointer = event.getPointerId(pointerIndex); 242 } 243 final float x = event.getX(pointerIndex); 244 final float y = event.getY(pointerIndex); 245 246 if (event.getActionMasked() == MotionEvent.ACTION_DOWN) { 247 mGestureWaitForTouchSlop = isFullyCollapsed() || hasConflictingGestures(); 248 mIgnoreXTouchSlop = isFullyCollapsed() || shouldGestureIgnoreXTouchSlop(x, y); 249 } 250 251 switch (event.getActionMasked()) { 252 case MotionEvent.ACTION_DOWN: 253 startExpandMotion(x, y, false /* startTracking */, mExpandedHeight); 254 mJustPeeked = false; 255 mPanelClosedOnDown = isFullyCollapsed(); 256 mHasLayoutedSinceDown = false; 257 mUpdateFlingOnLayout = false; 258 mMotionAborted = false; 259 mPeekTouching = mPanelClosedOnDown; 260 mTouchAboveFalsingThreshold = false; 261 mCollapsedAndHeadsUpOnDown = isFullyCollapsed() 262 && mHeadsUpManager.hasPinnedHeadsUp(); 263 if (mVelocityTracker == null) { 264 initVelocityTracker(); 265 } 266 trackMovement(event); 267 if (!mGestureWaitForTouchSlop || (mHeightAnimator != null && !mHintAnimationRunning) || 268 mPeekPending || mPeekAnimator != null) { 269 cancelHeightAnimator(); 270 cancelPeek(); 271 mTouchSlopExceeded = (mHeightAnimator != null && !mHintAnimationRunning) 272 || mPeekPending || mPeekAnimator != null; 273 onTrackingStarted(); 274 } 275 if (isFullyCollapsed() && !mHeadsUpManager.hasPinnedHeadsUp()) { 276 schedulePeek(); 277 } 278 break; 279 280 case MotionEvent.ACTION_POINTER_UP: 281 final int upPointer = event.getPointerId(event.getActionIndex()); 282 if (mTrackingPointer == upPointer) { 283 // gesture is ongoing, find a new pointer to track 284 final int newIndex = event.getPointerId(0) != upPointer ? 0 : 1; 285 final float newY = event.getY(newIndex); 286 final float newX = event.getX(newIndex); 287 mTrackingPointer = event.getPointerId(newIndex); 288 startExpandMotion(newX, newY, true /* startTracking */, mExpandedHeight); 289 } 290 break; 291 case MotionEvent.ACTION_POINTER_DOWN: 292 if (mStatusBar.getBarState() == StatusBarState.KEYGUARD) { 293 mMotionAborted = true; 294 endMotionEvent(event, x, y, true /* forceCancel */); 295 return false; 296 } 297 break; 298 case MotionEvent.ACTION_MOVE: 299 float h = y - mInitialTouchY; 300 301 // If the panel was collapsed when touching, we only need to check for the 302 // y-component of the gesture, as we have no conflicting horizontal gesture. 303 if (Math.abs(h) > mTouchSlop 304 && (Math.abs(h) > Math.abs(x - mInitialTouchX) 305 || mIgnoreXTouchSlop)) { 306 mTouchSlopExceeded = true; 307 if (mGestureWaitForTouchSlop && !mTracking && !mCollapsedAndHeadsUpOnDown) { 308 if (!mJustPeeked && mInitialOffsetOnTouch != 0f) { 309 startExpandMotion(x, y, false /* startTracking */, mExpandedHeight); 310 h = 0; 311 } 312 cancelHeightAnimator(); 313 removeCallbacks(mPeekRunnable); 314 mPeekPending = false; 315 onTrackingStarted(); 316 } 317 } 318 final float newHeight = Math.max(0, h + mInitialOffsetOnTouch); 319 if (newHeight > mPeekHeight) { 320 if (mPeekAnimator != null) { 321 mPeekAnimator.cancel(); 322 } 323 mJustPeeked = false; 324 } 325 if (-h >= getFalsingThreshold()) { 326 mTouchAboveFalsingThreshold = true; 327 mUpwardsWhenTresholdReached = isDirectionUpwards(x, y); 328 } 329 if (!mJustPeeked && (!mGestureWaitForTouchSlop || mTracking) && !isTrackingBlocked()) { 330 setExpandedHeightInternal(newHeight); 331 } 332 333 trackMovement(event); 334 break; 335 336 case MotionEvent.ACTION_UP: 337 case MotionEvent.ACTION_CANCEL: 338 trackMovement(event); 339 endMotionEvent(event, x, y, false /* forceCancel */); 340 break; 341 } 342 return !mGestureWaitForTouchSlop || mTracking; 343 } 344 345 /** 346 * @return whether the swiping direction is upwards and above a 45 degree angle compared to the 347 * horizontal direction 348 */ isDirectionUpwards(float x, float y)349 private boolean isDirectionUpwards(float x, float y) { 350 float xDiff = x - mInitialTouchX; 351 float yDiff = y - mInitialTouchY; 352 if (yDiff >= 0) { 353 return false; 354 } 355 return Math.abs(yDiff) >= Math.abs(xDiff); 356 } 357 startExpandMotion(float newX, float newY, boolean startTracking, float expandedHeight)358 protected void startExpandMotion(float newX, float newY, boolean startTracking, 359 float expandedHeight) { 360 mInitialOffsetOnTouch = expandedHeight; 361 mInitialTouchY = newY; 362 mInitialTouchX = newX; 363 if (startTracking) { 364 mTouchSlopExceeded = true; 365 setExpandedHeight(mInitialOffsetOnTouch); 366 onTrackingStarted(); 367 } 368 } 369 endMotionEvent(MotionEvent event, float x, float y, boolean forceCancel)370 private void endMotionEvent(MotionEvent event, float x, float y, boolean forceCancel) { 371 mTrackingPointer = -1; 372 if ((mTracking && mTouchSlopExceeded) 373 || Math.abs(x - mInitialTouchX) > mTouchSlop 374 || Math.abs(y - mInitialTouchY) > mTouchSlop 375 || event.getActionMasked() == MotionEvent.ACTION_CANCEL 376 || forceCancel) { 377 float vel = 0f; 378 float vectorVel = 0f; 379 if (mVelocityTracker != null) { 380 mVelocityTracker.computeCurrentVelocity(1000); 381 vel = mVelocityTracker.getYVelocity(); 382 vectorVel = (float) Math.hypot( 383 mVelocityTracker.getXVelocity(), mVelocityTracker.getYVelocity()); 384 } 385 boolean expand = flingExpands(vel, vectorVel, x, y) 386 || event.getActionMasked() == MotionEvent.ACTION_CANCEL 387 || forceCancel; 388 DozeLog.traceFling(expand, mTouchAboveFalsingThreshold, 389 mStatusBar.isFalsingThresholdNeeded(), 390 mStatusBar.isWakeUpComingFromTouch()); 391 // Log collapse gesture if on lock screen. 392 if (!expand && mStatusBar.getBarState() == StatusBarState.KEYGUARD) { 393 float displayDensity = mStatusBar.getDisplayDensity(); 394 int heightDp = (int) Math.abs((y - mInitialTouchY) / displayDensity); 395 int velocityDp = (int) Math.abs(vel / displayDensity); 396 EventLogTags.writeSysuiLockscreenGesture( 397 EventLogConstants.SYSUI_LOCKSCREEN_GESTURE_SWIPE_UP_UNLOCK, 398 heightDp, velocityDp); 399 } 400 fling(vel, expand, isFalseTouch(x, y)); 401 onTrackingStopped(expand); 402 mUpdateFlingOnLayout = expand && mPanelClosedOnDown && !mHasLayoutedSinceDown; 403 if (mUpdateFlingOnLayout) { 404 mUpdateFlingVelocity = vel; 405 } 406 } else { 407 boolean expands = onEmptySpaceClick(mInitialTouchX); 408 onTrackingStopped(expands); 409 } 410 411 if (mVelocityTracker != null) { 412 mVelocityTracker.recycle(); 413 mVelocityTracker = null; 414 } 415 mPeekTouching = false; 416 } 417 getFalsingThreshold()418 private int getFalsingThreshold() { 419 float factor = mStatusBar.isWakeUpComingFromTouch() ? 1.5f : 1.0f; 420 return (int) (mUnlockFalsingThreshold * factor); 421 } 422 hasConflictingGestures()423 protected abstract boolean hasConflictingGestures(); 424 shouldGestureIgnoreXTouchSlop(float x, float y)425 protected abstract boolean shouldGestureIgnoreXTouchSlop(float x, float y); 426 onTrackingStopped(boolean expand)427 protected void onTrackingStopped(boolean expand) { 428 mTracking = false; 429 mBar.onTrackingStopped(expand); 430 notifyBarPanelExpansionChanged(); 431 } 432 onTrackingStarted()433 protected void onTrackingStarted() { 434 endClosing(); 435 mTracking = true; 436 mCollapseAfterPeek = false; 437 mBar.onTrackingStarted(); 438 notifyExpandingStarted(); 439 notifyBarPanelExpansionChanged(); 440 } 441 442 @Override onInterceptTouchEvent(MotionEvent event)443 public boolean onInterceptTouchEvent(MotionEvent event) { 444 if (mInstantExpanding 445 || (mMotionAborted && event.getActionMasked() != MotionEvent.ACTION_DOWN)) { 446 return false; 447 } 448 449 /* 450 * If the user drags anywhere inside the panel we intercept it if the movement is 451 * upwards. This allows closing the shade from anywhere inside the panel. 452 * 453 * We only do this if the current content is scrolled to the bottom, 454 * i.e isScrolledToBottom() is true and therefore there is no conflicting scrolling gesture 455 * possible. 456 */ 457 int pointerIndex = event.findPointerIndex(mTrackingPointer); 458 if (pointerIndex < 0) { 459 pointerIndex = 0; 460 mTrackingPointer = event.getPointerId(pointerIndex); 461 } 462 final float x = event.getX(pointerIndex); 463 final float y = event.getY(pointerIndex); 464 boolean scrolledToBottom = isScrolledToBottom(); 465 466 switch (event.getActionMasked()) { 467 case MotionEvent.ACTION_DOWN: 468 mStatusBar.userActivity(); 469 mAnimatingOnDown = mHeightAnimator != null; 470 if (mAnimatingOnDown && mClosing && !mHintAnimationRunning || mPeekPending || mPeekAnimator != null) { 471 cancelHeightAnimator(); 472 cancelPeek(); 473 mTouchSlopExceeded = true; 474 return true; 475 } 476 mInitialTouchY = y; 477 mInitialTouchX = x; 478 mTouchStartedInEmptyArea = !isInContentBounds(x, y); 479 mTouchSlopExceeded = false; 480 mJustPeeked = false; 481 mMotionAborted = false; 482 mPanelClosedOnDown = isFullyCollapsed(); 483 mCollapsedAndHeadsUpOnDown = false; 484 mHasLayoutedSinceDown = false; 485 mUpdateFlingOnLayout = false; 486 mTouchAboveFalsingThreshold = false; 487 initVelocityTracker(); 488 trackMovement(event); 489 break; 490 case MotionEvent.ACTION_POINTER_UP: 491 final int upPointer = event.getPointerId(event.getActionIndex()); 492 if (mTrackingPointer == upPointer) { 493 // gesture is ongoing, find a new pointer to track 494 final int newIndex = event.getPointerId(0) != upPointer ? 0 : 1; 495 mTrackingPointer = event.getPointerId(newIndex); 496 mInitialTouchX = event.getX(newIndex); 497 mInitialTouchY = event.getY(newIndex); 498 } 499 break; 500 case MotionEvent.ACTION_POINTER_DOWN: 501 if (mStatusBar.getBarState() == StatusBarState.KEYGUARD) { 502 mMotionAborted = true; 503 if (mVelocityTracker != null) { 504 mVelocityTracker.recycle(); 505 mVelocityTracker = null; 506 } 507 } 508 break; 509 case MotionEvent.ACTION_MOVE: 510 final float h = y - mInitialTouchY; 511 trackMovement(event); 512 if (scrolledToBottom || mTouchStartedInEmptyArea || mAnimatingOnDown) { 513 float hAbs = Math.abs(h); 514 if ((h < -mTouchSlop || (mAnimatingOnDown && hAbs > mTouchSlop)) 515 && hAbs > Math.abs(x - mInitialTouchX)) { 516 cancelHeightAnimator(); 517 startExpandMotion(x, y, true /* startTracking */, mExpandedHeight); 518 return true; 519 } 520 } 521 break; 522 case MotionEvent.ACTION_CANCEL: 523 case MotionEvent.ACTION_UP: 524 if (mVelocityTracker != null) { 525 mVelocityTracker.recycle(); 526 mVelocityTracker = null; 527 } 528 break; 529 } 530 return false; 531 } 532 533 /** 534 * @return Whether a pair of coordinates are inside the visible view content bounds. 535 */ isInContentBounds(float x, float y)536 protected abstract boolean isInContentBounds(float x, float y); 537 cancelHeightAnimator()538 protected void cancelHeightAnimator() { 539 if (mHeightAnimator != null) { 540 mHeightAnimator.cancel(); 541 } 542 endClosing(); 543 } 544 endClosing()545 private void endClosing() { 546 if (mClosing) { 547 mClosing = false; 548 onClosingFinished(); 549 } 550 } 551 initVelocityTracker()552 private void initVelocityTracker() { 553 if (mVelocityTracker != null) { 554 mVelocityTracker.recycle(); 555 } 556 mVelocityTracker = VelocityTrackerFactory.obtain(getContext()); 557 } 558 isScrolledToBottom()559 protected boolean isScrolledToBottom() { 560 return true; 561 } 562 getContentHeight()563 protected float getContentHeight() { 564 return mExpandedHeight; 565 } 566 567 @Override onFinishInflate()568 protected void onFinishInflate() { 569 super.onFinishInflate(); 570 loadDimens(); 571 } 572 573 @Override onConfigurationChanged(Configuration newConfig)574 protected void onConfigurationChanged(Configuration newConfig) { 575 super.onConfigurationChanged(newConfig); 576 loadDimens(); 577 } 578 579 /** 580 * @param vel the current vertical velocity of the motion 581 * @param vectorVel the length of the vectorial velocity 582 * @return whether a fling should expands the panel; contracts otherwise 583 */ flingExpands(float vel, float vectorVel, float x, float y)584 protected boolean flingExpands(float vel, float vectorVel, float x, float y) { 585 if (isFalseTouch(x, y)) { 586 return true; 587 } 588 if (Math.abs(vectorVel) < mFlingAnimationUtils.getMinVelocityPxPerSecond()) { 589 return getExpandedFraction() > 0.5f; 590 } else { 591 return vel > 0; 592 } 593 } 594 595 /** 596 * @param x the final x-coordinate when the finger was lifted 597 * @param y the final y-coordinate when the finger was lifted 598 * @return whether this motion should be regarded as a false touch 599 */ isFalseTouch(float x, float y)600 private boolean isFalseTouch(float x, float y) { 601 if (!mStatusBar.isFalsingThresholdNeeded()) { 602 return false; 603 } 604 if (mFalsingManager.isClassiferEnabled()) { 605 return mFalsingManager.isFalseTouch(); 606 } 607 if (!mTouchAboveFalsingThreshold) { 608 return true; 609 } 610 if (mUpwardsWhenTresholdReached) { 611 return false; 612 } 613 return !isDirectionUpwards(x, y); 614 } 615 fling(float vel, boolean expand)616 protected void fling(float vel, boolean expand) { 617 fling(vel, expand, 1.0f /* collapseSpeedUpFactor */, false); 618 } 619 fling(float vel, boolean expand, boolean expandBecauseOfFalsing)620 protected void fling(float vel, boolean expand, boolean expandBecauseOfFalsing) { 621 fling(vel, expand, 1.0f /* collapseSpeedUpFactor */, expandBecauseOfFalsing); 622 } 623 fling(float vel, boolean expand, float collapseSpeedUpFactor, boolean expandBecauseOfFalsing)624 protected void fling(float vel, boolean expand, float collapseSpeedUpFactor, 625 boolean expandBecauseOfFalsing) { 626 cancelPeek(); 627 float target = expand ? getMaxPanelHeight() : 0.0f; 628 if (!expand) { 629 mClosing = true; 630 } 631 flingToHeight(vel, expand, target, collapseSpeedUpFactor, expandBecauseOfFalsing); 632 } 633 flingToHeight(float vel, boolean expand, float target, float collapseSpeedUpFactor, boolean expandBecauseOfFalsing)634 protected void flingToHeight(float vel, boolean expand, float target, 635 float collapseSpeedUpFactor, boolean expandBecauseOfFalsing) { 636 // Hack to make the expand transition look nice when clear all button is visible - we make 637 // the animation only to the last notification, and then jump to the maximum panel height so 638 // clear all just fades in and the decelerating motion is towards the last notification. 639 final boolean clearAllExpandHack = expand && fullyExpandedClearAllVisible() 640 && mExpandedHeight < getMaxPanelHeight() - getClearAllHeight() 641 && !isClearAllVisible(); 642 if (clearAllExpandHack) { 643 target = getMaxPanelHeight() - getClearAllHeight(); 644 } 645 if (target == mExpandedHeight || getOverExpansionAmount() > 0f && expand) { 646 notifyExpandingFinished(); 647 return; 648 } 649 mOverExpandedBeforeFling = getOverExpansionAmount() > 0f; 650 ValueAnimator animator = createHeightAnimator(target); 651 if (expand) { 652 if (expandBecauseOfFalsing) { 653 vel = 0; 654 } 655 mFlingAnimationUtils.apply(animator, mExpandedHeight, target, vel, getHeight()); 656 if (expandBecauseOfFalsing) { 657 animator.setDuration(350); 658 } 659 } else { 660 mFlingAnimationUtils.applyDismissing(animator, mExpandedHeight, target, vel, 661 getHeight()); 662 663 // Make it shorter if we run a canned animation 664 if (vel == 0) { 665 animator.setDuration((long) 666 (animator.getDuration() * getCannedFlingDurationFactor() 667 / collapseSpeedUpFactor)); 668 } 669 } 670 animator.addListener(new AnimatorListenerAdapter() { 671 private boolean mCancelled; 672 673 @Override 674 public void onAnimationCancel(Animator animation) { 675 mCancelled = true; 676 } 677 678 @Override 679 public void onAnimationEnd(Animator animation) { 680 if (clearAllExpandHack && !mCancelled) { 681 setExpandedHeightInternal(getMaxPanelHeight()); 682 } 683 mHeightAnimator = null; 684 if (!mCancelled) { 685 notifyExpandingFinished(); 686 } 687 notifyBarPanelExpansionChanged(); 688 } 689 }); 690 mHeightAnimator = animator; 691 animator.start(); 692 } 693 694 @Override onAttachedToWindow()695 protected void onAttachedToWindow() { 696 super.onAttachedToWindow(); 697 mViewName = getResources().getResourceName(getId()); 698 } 699 getName()700 public String getName() { 701 return mViewName; 702 } 703 setExpandedHeight(float height)704 public void setExpandedHeight(float height) { 705 if (DEBUG) logf("setExpandedHeight(%.1f)", height); 706 setExpandedHeightInternal(height + getOverExpansionPixels()); 707 } 708 709 @Override onLayout(boolean changed, int left, int top, int right, int bottom)710 protected void onLayout (boolean changed, int left, int top, int right, int bottom) { 711 super.onLayout(changed, left, top, right, bottom); 712 mStatusBar.onPanelLaidOut(); 713 requestPanelHeightUpdate(); 714 mHasLayoutedSinceDown = true; 715 if (mUpdateFlingOnLayout) { 716 abortAnimations(); 717 fling(mUpdateFlingVelocity, true /* expands */); 718 mUpdateFlingOnLayout = false; 719 } 720 } 721 requestPanelHeightUpdate()722 protected void requestPanelHeightUpdate() { 723 float currentMaxPanelHeight = getMaxPanelHeight(); 724 725 // If the user isn't actively poking us, let's update the height 726 if ((!mTracking || isTrackingBlocked()) 727 && mHeightAnimator == null 728 && !isFullyCollapsed() 729 && currentMaxPanelHeight != mExpandedHeight 730 && !mPeekPending 731 && mPeekAnimator == null 732 && !mPeekTouching) { 733 setExpandedHeight(currentMaxPanelHeight); 734 } 735 } 736 setExpandedHeightInternal(float h)737 public void setExpandedHeightInternal(float h) { 738 float fhWithoutOverExpansion = getMaxPanelHeight() - getOverExpansionAmount(); 739 if (mHeightAnimator == null) { 740 float overExpansionPixels = Math.max(0, h - fhWithoutOverExpansion); 741 if (getOverExpansionPixels() != overExpansionPixels && mTracking) { 742 setOverExpansion(overExpansionPixels, true /* isPixels */); 743 } 744 mExpandedHeight = Math.min(h, fhWithoutOverExpansion) + getOverExpansionAmount(); 745 } else { 746 mExpandedHeight = h; 747 if (mOverExpandedBeforeFling) { 748 setOverExpansion(Math.max(0, h - fhWithoutOverExpansion), false /* isPixels */); 749 } 750 } 751 752 mExpandedHeight = Math.max(0, mExpandedHeight); 753 mExpandedFraction = Math.min(1f, fhWithoutOverExpansion == 0 754 ? 0 755 : mExpandedHeight / fhWithoutOverExpansion); 756 onHeightUpdated(mExpandedHeight); 757 notifyBarPanelExpansionChanged(); 758 } 759 760 /** 761 * @return true if the panel tracking should be temporarily blocked; this is used when a 762 * conflicting gesture (opening QS) is happening 763 */ isTrackingBlocked()764 protected abstract boolean isTrackingBlocked(); 765 setOverExpansion(float overExpansion, boolean isPixels)766 protected abstract void setOverExpansion(float overExpansion, boolean isPixels); 767 onHeightUpdated(float expandedHeight)768 protected abstract void onHeightUpdated(float expandedHeight); 769 getOverExpansionAmount()770 protected abstract float getOverExpansionAmount(); 771 getOverExpansionPixels()772 protected abstract float getOverExpansionPixels(); 773 774 /** 775 * This returns the maximum height of the panel. Children should override this if their 776 * desired height is not the full height. 777 * 778 * @return the default implementation simply returns the maximum height. 779 */ getMaxPanelHeight()780 protected abstract int getMaxPanelHeight(); 781 setExpandedFraction(float frac)782 public void setExpandedFraction(float frac) { 783 setExpandedHeight(getMaxPanelHeight() * frac); 784 } 785 getExpandedHeight()786 public float getExpandedHeight() { 787 return mExpandedHeight; 788 } 789 getExpandedFraction()790 public float getExpandedFraction() { 791 return mExpandedFraction; 792 } 793 isFullyExpanded()794 public boolean isFullyExpanded() { 795 return mExpandedHeight >= getMaxPanelHeight(); 796 } 797 isFullyCollapsed()798 public boolean isFullyCollapsed() { 799 return mExpandedHeight <= 0; 800 } 801 isCollapsing()802 public boolean isCollapsing() { 803 return mClosing; 804 } 805 isTracking()806 public boolean isTracking() { 807 return mTracking; 808 } 809 setBar(PanelBar panelBar)810 public void setBar(PanelBar panelBar) { 811 mBar = panelBar; 812 } 813 collapse(boolean delayed, float speedUpFactor)814 public void collapse(boolean delayed, float speedUpFactor) { 815 if (DEBUG) logf("collapse: " + this); 816 if (mPeekPending || mPeekAnimator != null) { 817 mCollapseAfterPeek = true; 818 if (mPeekPending) { 819 820 // We know that the whole gesture is just a peek triggered by a simple click, so 821 // better start it now. 822 removeCallbacks(mPeekRunnable); 823 mPeekRunnable.run(); 824 } 825 } else if (!isFullyCollapsed() && !mTracking && !mClosing) { 826 cancelHeightAnimator(); 827 notifyExpandingStarted(); 828 829 // Set after notifyExpandingStarted, as notifyExpandingStarted resets the closing state. 830 mClosing = true; 831 if (delayed) { 832 mNextCollapseSpeedUpFactor = speedUpFactor; 833 postDelayed(mFlingCollapseRunnable, 120); 834 } else { 835 fling(0, false /* expand */, speedUpFactor, false /* expandBecauseOfFalsing */); 836 } 837 } 838 } 839 840 private final Runnable mFlingCollapseRunnable = new Runnable() { 841 @Override 842 public void run() { 843 fling(0, false /* expand */, mNextCollapseSpeedUpFactor, 844 false /* expandBecauseOfFalsing */); 845 } 846 }; 847 cancelPeek()848 public void cancelPeek() { 849 boolean cancelled = mPeekPending; 850 if (mPeekAnimator != null) { 851 cancelled = true; 852 mPeekAnimator.cancel(); 853 } 854 removeCallbacks(mPeekRunnable); 855 mPeekPending = false; 856 857 if (cancelled) { 858 // When peeking, we already tell mBar that we expanded ourselves. Make sure that we also 859 // notify mBar that we might have closed ourselves. 860 notifyBarPanelExpansionChanged(); 861 } 862 } 863 expand(final boolean animate)864 public void expand(final boolean animate) { 865 if (!isFullyCollapsed() && !isCollapsing()) { 866 return; 867 } 868 869 mInstantExpanding = true; 870 mUpdateFlingOnLayout = false; 871 abortAnimations(); 872 cancelPeek(); 873 if (mTracking) { 874 onTrackingStopped(true /* expands */); // The panel is expanded after this call. 875 } 876 if (mExpanding) { 877 notifyExpandingFinished(); 878 } 879 notifyBarPanelExpansionChanged(); 880 881 // Wait for window manager to pickup the change, so we know the maximum height of the panel 882 // then. 883 getViewTreeObserver().addOnGlobalLayoutListener( 884 new ViewTreeObserver.OnGlobalLayoutListener() { 885 @Override 886 public void onGlobalLayout() { 887 if (!mInstantExpanding) { 888 getViewTreeObserver().removeOnGlobalLayoutListener(this); 889 return; 890 } 891 if (mStatusBar.getStatusBarWindow().getHeight() 892 != mStatusBar.getStatusBarHeight()) { 893 getViewTreeObserver().removeOnGlobalLayoutListener(this); 894 if (animate) { 895 notifyExpandingStarted(); 896 fling(0, true /* expand */); 897 } else { 898 setExpandedFraction(1f); 899 } 900 mInstantExpanding = false; 901 } 902 } 903 }); 904 905 // Make sure a layout really happens. 906 requestLayout(); 907 } 908 instantCollapse()909 public void instantCollapse() { 910 abortAnimations(); 911 setExpandedFraction(0f); 912 if (mExpanding) { 913 notifyExpandingFinished(); 914 } 915 if (mInstantExpanding) { 916 mInstantExpanding = false; 917 notifyBarPanelExpansionChanged(); 918 } 919 } 920 abortAnimations()921 private void abortAnimations() { 922 cancelPeek(); 923 cancelHeightAnimator(); 924 removeCallbacks(mPostCollapseRunnable); 925 removeCallbacks(mFlingCollapseRunnable); 926 } 927 onClosingFinished()928 protected void onClosingFinished() { 929 mBar.onClosingFinished(); 930 } 931 932 startUnlockHintAnimation()933 protected void startUnlockHintAnimation() { 934 935 // We don't need to hint the user if an animation is already running or the user is changing 936 // the expansion. 937 if (mHeightAnimator != null || mTracking) { 938 return; 939 } 940 cancelPeek(); 941 notifyExpandingStarted(); 942 startUnlockHintAnimationPhase1(new Runnable() { 943 @Override 944 public void run() { 945 notifyExpandingFinished(); 946 mStatusBar.onHintFinished(); 947 mHintAnimationRunning = false; 948 } 949 }); 950 mStatusBar.onUnlockHintStarted(); 951 mHintAnimationRunning = true; 952 } 953 954 /** 955 * Phase 1: Move everything upwards. 956 */ startUnlockHintAnimationPhase1(final Runnable onAnimationFinished)957 private void startUnlockHintAnimationPhase1(final Runnable onAnimationFinished) { 958 float target = Math.max(0, getMaxPanelHeight() - mHintDistance); 959 ValueAnimator animator = createHeightAnimator(target); 960 animator.setDuration(250); 961 animator.setInterpolator(Interpolators.FAST_OUT_SLOW_IN); 962 animator.addListener(new AnimatorListenerAdapter() { 963 private boolean mCancelled; 964 965 @Override 966 public void onAnimationCancel(Animator animation) { 967 mCancelled = true; 968 } 969 970 @Override 971 public void onAnimationEnd(Animator animation) { 972 if (mCancelled) { 973 mHeightAnimator = null; 974 onAnimationFinished.run(); 975 } else { 976 startUnlockHintAnimationPhase2(onAnimationFinished); 977 } 978 } 979 }); 980 animator.start(); 981 mHeightAnimator = animator; 982 mKeyguardBottomArea.getIndicationView().animate() 983 .translationY(-mHintDistance) 984 .setDuration(250) 985 .setInterpolator(Interpolators.FAST_OUT_SLOW_IN) 986 .withEndAction(new Runnable() { 987 @Override 988 public void run() { 989 mKeyguardBottomArea.getIndicationView().animate() 990 .translationY(0) 991 .setDuration(450) 992 .setInterpolator(mBounceInterpolator) 993 .start(); 994 } 995 }) 996 .start(); 997 } 998 999 /** 1000 * Phase 2: Bounce down. 1001 */ startUnlockHintAnimationPhase2(final Runnable onAnimationFinished)1002 private void startUnlockHintAnimationPhase2(final Runnable onAnimationFinished) { 1003 ValueAnimator animator = createHeightAnimator(getMaxPanelHeight()); 1004 animator.setDuration(450); 1005 animator.setInterpolator(mBounceInterpolator); 1006 animator.addListener(new AnimatorListenerAdapter() { 1007 @Override 1008 public void onAnimationEnd(Animator animation) { 1009 mHeightAnimator = null; 1010 onAnimationFinished.run(); 1011 notifyBarPanelExpansionChanged(); 1012 } 1013 }); 1014 animator.start(); 1015 mHeightAnimator = animator; 1016 } 1017 createHeightAnimator(float targetHeight)1018 private ValueAnimator createHeightAnimator(float targetHeight) { 1019 ValueAnimator animator = ValueAnimator.ofFloat(mExpandedHeight, targetHeight); 1020 animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() { 1021 @Override 1022 public void onAnimationUpdate(ValueAnimator animation) { 1023 setExpandedHeightInternal((Float) animation.getAnimatedValue()); 1024 } 1025 }); 1026 return animator; 1027 } 1028 notifyBarPanelExpansionChanged()1029 protected void notifyBarPanelExpansionChanged() { 1030 mBar.panelExpansionChanged(mExpandedFraction, mExpandedFraction > 0f || mPeekPending 1031 || mPeekAnimator != null || mInstantExpanding || isPanelVisibleBecauseOfHeadsUp() 1032 || mTracking || mHeightAnimator != null); 1033 } 1034 isPanelVisibleBecauseOfHeadsUp()1035 protected abstract boolean isPanelVisibleBecauseOfHeadsUp(); 1036 1037 /** 1038 * Gets called when the user performs a click anywhere in the empty area of the panel. 1039 * 1040 * @return whether the panel will be expanded after the action performed by this method 1041 */ onEmptySpaceClick(float x)1042 protected boolean onEmptySpaceClick(float x) { 1043 if (mHintAnimationRunning) { 1044 return true; 1045 } 1046 return onMiddleClicked(); 1047 } 1048 1049 protected final Runnable mPostCollapseRunnable = new Runnable() { 1050 @Override 1051 public void run() { 1052 collapse(false /* delayed */, 1.0f /* speedUpFactor */); 1053 } 1054 }; 1055 onMiddleClicked()1056 protected abstract boolean onMiddleClicked(); 1057 isDozing()1058 protected abstract boolean isDozing(); 1059 dump(FileDescriptor fd, PrintWriter pw, String[] args)1060 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 1061 pw.println(String.format("[PanelView(%s): expandedHeight=%f maxPanelHeight=%d closing=%s" 1062 + " tracking=%s justPeeked=%s peekAnim=%s%s timeAnim=%s%s touchDisabled=%s" 1063 + "]", 1064 this.getClass().getSimpleName(), 1065 getExpandedHeight(), 1066 getMaxPanelHeight(), 1067 mClosing?"T":"f", 1068 mTracking?"T":"f", 1069 mJustPeeked?"T":"f", 1070 mPeekAnimator, ((mPeekAnimator!=null && mPeekAnimator.isStarted())?" (started)":""), 1071 mHeightAnimator, ((mHeightAnimator !=null && mHeightAnimator.isStarted())?" (started)":""), 1072 mTouchDisabled?"T":"f" 1073 )); 1074 } 1075 resetViews()1076 public abstract void resetViews(); 1077 getPeekHeight()1078 protected abstract float getPeekHeight(); 1079 getCannedFlingDurationFactor()1080 protected abstract float getCannedFlingDurationFactor(); 1081 1082 /** 1083 * @return whether "Clear all" button will be visible when the panel is fully expanded 1084 */ fullyExpandedClearAllVisible()1085 protected abstract boolean fullyExpandedClearAllVisible(); 1086 isClearAllVisible()1087 protected abstract boolean isClearAllVisible(); 1088 1089 /** 1090 * @return the height of the clear all button, in pixels 1091 */ getClearAllHeight()1092 protected abstract int getClearAllHeight(); 1093 setHeadsUpManager(HeadsUpManager headsUpManager)1094 public void setHeadsUpManager(HeadsUpManager headsUpManager) { 1095 mHeadsUpManager = headsUpManager; 1096 } 1097 } 1098