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