PanelView.java revision e62d589bea54e58054ae16265c92e974a8250ff5
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.systemui.statusbar.phone; 18 19import android.animation.Animator; 20import android.animation.AnimatorListenerAdapter; 21import android.animation.ObjectAnimator; 22import android.animation.ValueAnimator; 23import android.content.Context; 24import android.content.res.Configuration; 25import android.content.res.Resources; 26import android.util.AttributeSet; 27import android.util.Log; 28import android.view.MotionEvent; 29import android.view.ViewConfiguration; 30import android.view.ViewTreeObserver; 31import android.view.animation.AnimationUtils; 32import android.view.animation.Interpolator; 33import android.widget.FrameLayout; 34 35import com.android.systemui.R; 36import com.android.systemui.statusbar.FlingAnimationUtils; 37import com.android.systemui.statusbar.StatusBarState; 38 39import java.io.FileDescriptor; 40import java.io.PrintWriter; 41 42public abstract class PanelView extends FrameLayout { 43 public static final boolean DEBUG = PanelBar.DEBUG; 44 public static final String TAG = PanelView.class.getSimpleName(); 45 46 private final void logf(String fmt, Object... args) { 47 Log.v(TAG, (mViewName != null ? (mViewName + ": ") : "") + String.format(fmt, args)); 48 } 49 50 protected PhoneStatusBar mStatusBar; 51 private float mPeekHeight; 52 private float mHintDistance; 53 private int mEdgeTapAreaWidth; 54 private float mInitialOffsetOnTouch; 55 private float mExpandedFraction = 0; 56 protected float mExpandedHeight = 0; 57 private boolean mPanelClosedOnDown; 58 private boolean mHasLayoutedSinceDown; 59 private float mUpdateFlingVelocity; 60 private boolean mUpdateFlingOnLayout; 61 private boolean mPeekTouching; 62 private boolean mJustPeeked; 63 private boolean mClosing; 64 protected boolean mTracking; 65 private boolean mTouchSlopExceeded; 66 private int mTrackingPointer; 67 protected int mTouchSlop; 68 protected boolean mHintAnimationRunning; 69 private boolean mOverExpandedBeforeFling; 70 private float mOriginalIndicationY; 71 private boolean mTouchAboveFalsingThreshold; 72 private int mUnlockFalsingThreshold; 73 74 private ValueAnimator mHeightAnimator; 75 private ObjectAnimator mPeekAnimator; 76 private VelocityTrackerInterface mVelocityTracker; 77 private FlingAnimationUtils mFlingAnimationUtils; 78 79 /** 80 * Whether an instant expand request is currently pending and we are just waiting for layout. 81 */ 82 private boolean mInstantExpanding; 83 84 PanelBar mBar; 85 86 private String mViewName; 87 private float mInitialTouchY; 88 private float mInitialTouchX; 89 90 private Interpolator mLinearOutSlowInInterpolator; 91 private Interpolator mFastOutSlowInInterpolator; 92 private Interpolator mBounceInterpolator; 93 protected KeyguardBottomAreaView mKeyguardBottomArea; 94 95 private boolean mPeekPending; 96 private boolean mCollapseAfterPeek; 97 private boolean mExpanding; 98 private boolean mGestureWaitForTouchSlop; 99 private Runnable mPeekRunnable = new Runnable() { 100 @Override 101 public void run() { 102 mPeekPending = false; 103 runPeekAnimation(); 104 } 105 }; 106 107 protected void onExpandingFinished() { 108 mClosing = false; 109 mBar.onExpandingFinished(); 110 } 111 112 protected void onExpandingStarted() { 113 } 114 115 private void notifyExpandingStarted() { 116 if (!mExpanding) { 117 mExpanding = true; 118 onExpandingStarted(); 119 } 120 } 121 122 private void notifyExpandingFinished() { 123 if (mExpanding) { 124 mExpanding = false; 125 onExpandingFinished(); 126 } 127 } 128 129 private void schedulePeek() { 130 mPeekPending = true; 131 long timeout = ViewConfiguration.getTapTimeout(); 132 postOnAnimationDelayed(mPeekRunnable, timeout); 133 notifyBarPanelExpansionChanged(); 134 } 135 136 private void runPeekAnimation() { 137 mPeekHeight = getPeekHeight(); 138 if (DEBUG) logf("peek to height=%.1f", mPeekHeight); 139 if (mHeightAnimator != null) { 140 return; 141 } 142 mPeekAnimator = ObjectAnimator.ofFloat(this, "expandedHeight", mPeekHeight) 143 .setDuration(250); 144 mPeekAnimator.setInterpolator(mLinearOutSlowInInterpolator); 145 mPeekAnimator.addListener(new AnimatorListenerAdapter() { 146 private boolean mCancelled; 147 148 @Override 149 public void onAnimationCancel(Animator animation) { 150 mCancelled = true; 151 } 152 153 @Override 154 public void onAnimationEnd(Animator animation) { 155 mPeekAnimator = null; 156 if (mCollapseAfterPeek && !mCancelled) { 157 postOnAnimation(new Runnable() { 158 @Override 159 public void run() { 160 collapse(false /* delayed */); 161 } 162 }); 163 } 164 mCollapseAfterPeek = false; 165 } 166 }); 167 notifyExpandingStarted(); 168 mPeekAnimator.start(); 169 mJustPeeked = true; 170 } 171 172 public PanelView(Context context, AttributeSet attrs) { 173 super(context, attrs); 174 mFlingAnimationUtils = new FlingAnimationUtils(context, 0.6f); 175 mFastOutSlowInInterpolator = 176 AnimationUtils.loadInterpolator(context, android.R.interpolator.fast_out_slow_in); 177 mLinearOutSlowInInterpolator = 178 AnimationUtils.loadInterpolator(context, android.R.interpolator.linear_out_slow_in); 179 mBounceInterpolator = new BounceInterpolator(); 180 } 181 182 protected void loadDimens() { 183 final Resources res = getContext().getResources(); 184 final ViewConfiguration configuration = ViewConfiguration.get(getContext()); 185 mTouchSlop = configuration.getScaledTouchSlop(); 186 mHintDistance = res.getDimension(R.dimen.hint_move_distance); 187 mEdgeTapAreaWidth = res.getDimensionPixelSize(R.dimen.edge_tap_area_width); 188 mUnlockFalsingThreshold = res.getDimensionPixelSize(R.dimen.unlock_falsing_threshold); 189 } 190 191 private void trackMovement(MotionEvent event) { 192 // Add movement to velocity tracker using raw screen X and Y coordinates instead 193 // of window coordinates because the window frame may be moving at the same time. 194 float deltaX = event.getRawX() - event.getX(); 195 float deltaY = event.getRawY() - event.getY(); 196 event.offsetLocation(deltaX, deltaY); 197 if (mVelocityTracker != null) mVelocityTracker.addMovement(event); 198 event.offsetLocation(-deltaX, -deltaY); 199 } 200 201 @Override 202 public boolean onTouchEvent(MotionEvent event) { 203 if (mInstantExpanding) { 204 return false; 205 } 206 207 /* 208 * We capture touch events here and update the expand height here in case according to 209 * the users fingers. This also handles multi-touch. 210 * 211 * If the user just clicks shortly, we give him a quick peek of the shade. 212 * 213 * Flinging is also enabled in order to open or close the shade. 214 */ 215 216 int pointerIndex = event.findPointerIndex(mTrackingPointer); 217 if (pointerIndex < 0) { 218 pointerIndex = 0; 219 mTrackingPointer = event.getPointerId(pointerIndex); 220 } 221 final float y = event.getY(pointerIndex); 222 final float x = event.getX(pointerIndex); 223 224 if (event.getActionMasked() == MotionEvent.ACTION_DOWN) { 225 mGestureWaitForTouchSlop = mExpandedHeight == 0f; 226 } 227 boolean waitForTouchSlop = hasConflictingGestures() || mGestureWaitForTouchSlop; 228 229 switch (event.getActionMasked()) { 230 case MotionEvent.ACTION_DOWN: 231 mInitialTouchY = y; 232 mInitialTouchX = x; 233 mInitialOffsetOnTouch = mExpandedHeight; 234 mTouchSlopExceeded = false; 235 mJustPeeked = false; 236 mPanelClosedOnDown = mExpandedHeight == 0.0f; 237 mHasLayoutedSinceDown = false; 238 mUpdateFlingOnLayout = false; 239 mPeekTouching = mPanelClosedOnDown; 240 mTouchAboveFalsingThreshold = false; 241 if (mVelocityTracker == null) { 242 initVelocityTracker(); 243 } 244 trackMovement(event); 245 if (!waitForTouchSlop || (mHeightAnimator != null && !mHintAnimationRunning) || 246 mPeekPending || mPeekAnimator != null) { 247 if (mHeightAnimator != null) { 248 mHeightAnimator.cancel(); // end any outstanding animations 249 } 250 cancelPeek(); 251 mTouchSlopExceeded = (mHeightAnimator != null && !mHintAnimationRunning) 252 || mPeekPending || mPeekAnimator != null; 253 onTrackingStarted(); 254 } 255 if (mExpandedHeight == 0) { 256 schedulePeek(); 257 } 258 break; 259 260 case MotionEvent.ACTION_POINTER_UP: 261 final int upPointer = event.getPointerId(event.getActionIndex()); 262 if (mTrackingPointer == upPointer) { 263 // gesture is ongoing, find a new pointer to track 264 final int newIndex = event.getPointerId(0) != upPointer ? 0 : 1; 265 final float newY = event.getY(newIndex); 266 final float newX = event.getX(newIndex); 267 mTrackingPointer = event.getPointerId(newIndex); 268 mInitialOffsetOnTouch = mExpandedHeight; 269 mInitialTouchY = newY; 270 mInitialTouchX = newX; 271 } 272 break; 273 274 case MotionEvent.ACTION_MOVE: 275 float h = y - mInitialTouchY; 276 277 // If the panel was collapsed when touching, we only need to check for the 278 // y-component of the gesture, as we have no conflicting horizontal gesture. 279 if (Math.abs(h) > mTouchSlop 280 && (Math.abs(h) > Math.abs(x - mInitialTouchX) 281 || mInitialOffsetOnTouch == 0f)) { 282 mTouchSlopExceeded = true; 283 if (waitForTouchSlop && !mTracking) { 284 if (!mJustPeeked) { 285 mInitialOffsetOnTouch = mExpandedHeight; 286 mInitialTouchX = x; 287 mInitialTouchY = y; 288 h = 0; 289 } 290 if (mHeightAnimator != null) { 291 mHeightAnimator.cancel(); // end any outstanding animations 292 } 293 removeCallbacks(mPeekRunnable); 294 mPeekPending = false; 295 onTrackingStarted(); 296 } 297 } 298 final float newHeight = Math.max(0, h + mInitialOffsetOnTouch); 299 if (newHeight > mPeekHeight) { 300 if (mPeekAnimator != null) { 301 mPeekAnimator.cancel(); 302 } 303 mJustPeeked = false; 304 } 305 if (-h >= mUnlockFalsingThreshold) { 306 mTouchAboveFalsingThreshold = true; 307 } 308 if (!mJustPeeked && (!waitForTouchSlop || mTracking) && !isTrackingBlocked()) { 309 setExpandedHeightInternal(newHeight); 310 } 311 312 trackMovement(event); 313 break; 314 315 case MotionEvent.ACTION_UP: 316 case MotionEvent.ACTION_CANCEL: 317 mTrackingPointer = -1; 318 trackMovement(event); 319 if ((mTracking && mTouchSlopExceeded) 320 || Math.abs(x - mInitialTouchX) > mTouchSlop 321 || Math.abs(y - mInitialTouchY) > mTouchSlop 322 || event.getActionMasked() == MotionEvent.ACTION_CANCEL) { 323 float vel = 0f; 324 float vectorVel = 0f; 325 if (mVelocityTracker != null) { 326 mVelocityTracker.computeCurrentVelocity(1000); 327 vel = mVelocityTracker.getYVelocity(); 328 vectorVel = (float) Math.hypot( 329 mVelocityTracker.getXVelocity(), mVelocityTracker.getYVelocity()); 330 } 331 boolean expand = flingExpands(vel, vectorVel); 332 onTrackingStopped(expand); 333 fling(vel, expand); 334 mUpdateFlingOnLayout = expand && mPanelClosedOnDown && !mHasLayoutedSinceDown; 335 if (mUpdateFlingOnLayout) { 336 mUpdateFlingVelocity = vel; 337 } 338 } else { 339 boolean expands = onEmptySpaceClick(mInitialTouchX); 340 onTrackingStopped(expands); 341 } 342 343 if (mVelocityTracker != null) { 344 mVelocityTracker.recycle(); 345 mVelocityTracker = null; 346 } 347 mPeekTouching = false; 348 break; 349 } 350 return !waitForTouchSlop || mTracking; 351 } 352 353 protected abstract boolean hasConflictingGestures(); 354 355 protected void onTrackingStopped(boolean expand) { 356 mTracking = false; 357 mBar.onTrackingStopped(PanelView.this, expand); 358 } 359 360 protected void onTrackingStarted() { 361 mTracking = true; 362 mCollapseAfterPeek = false; 363 mBar.onTrackingStarted(PanelView.this); 364 notifyExpandingStarted(); 365 } 366 367 @Override 368 public boolean onInterceptTouchEvent(MotionEvent event) { 369 if (mInstantExpanding) { 370 return false; 371 } 372 373 /* 374 * If the user drags anywhere inside the panel we intercept it if he moves his finger 375 * upwards. This allows closing the shade from anywhere inside the panel. 376 * 377 * We only do this if the current content is scrolled to the bottom, 378 * i.e isScrolledToBottom() is true and therefore there is no conflicting scrolling gesture 379 * possible. 380 */ 381 int pointerIndex = event.findPointerIndex(mTrackingPointer); 382 if (pointerIndex < 0) { 383 pointerIndex = 0; 384 mTrackingPointer = event.getPointerId(pointerIndex); 385 } 386 final float x = event.getX(pointerIndex); 387 final float y = event.getY(pointerIndex); 388 boolean scrolledToBottom = isScrolledToBottom(); 389 390 switch (event.getActionMasked()) { 391 case MotionEvent.ACTION_DOWN: 392 mStatusBar.userActivity(); 393 if (mHeightAnimator != null && !mHintAnimationRunning || 394 mPeekPending || mPeekAnimator != null) { 395 if (mHeightAnimator != null) { 396 mHeightAnimator.cancel(); // end any outstanding animations 397 } 398 cancelPeek(); 399 mTouchSlopExceeded = true; 400 return true; 401 } 402 mInitialTouchY = y; 403 mInitialTouchX = x; 404 mTouchSlopExceeded = false; 405 mJustPeeked = false; 406 mPanelClosedOnDown = mExpandedHeight == 0.0f; 407 mHasLayoutedSinceDown = false; 408 mUpdateFlingOnLayout = false; 409 mTouchAboveFalsingThreshold = false; 410 initVelocityTracker(); 411 trackMovement(event); 412 break; 413 case MotionEvent.ACTION_POINTER_UP: 414 final int upPointer = event.getPointerId(event.getActionIndex()); 415 if (mTrackingPointer == upPointer) { 416 // gesture is ongoing, find a new pointer to track 417 final int newIndex = event.getPointerId(0) != upPointer ? 0 : 1; 418 mTrackingPointer = event.getPointerId(newIndex); 419 mInitialTouchX = event.getX(newIndex); 420 mInitialTouchY = event.getY(newIndex); 421 } 422 break; 423 424 case MotionEvent.ACTION_MOVE: 425 final float h = y - mInitialTouchY; 426 trackMovement(event); 427 if (scrolledToBottom) { 428 if (h < -mTouchSlop && h < -Math.abs(x - mInitialTouchX)) { 429 if (mHeightAnimator != null) { 430 mHeightAnimator.cancel(); 431 } 432 mInitialOffsetOnTouch = mExpandedHeight; 433 mInitialTouchY = y; 434 mInitialTouchX = x; 435 mTracking = true; 436 mTouchSlopExceeded = true; 437 onTrackingStarted(); 438 return true; 439 } 440 } 441 break; 442 case MotionEvent.ACTION_CANCEL: 443 case MotionEvent.ACTION_UP: 444 break; 445 } 446 return false; 447 } 448 449 private void initVelocityTracker() { 450 if (mVelocityTracker != null) { 451 mVelocityTracker.recycle(); 452 } 453 mVelocityTracker = VelocityTrackerFactory.obtain(getContext()); 454 } 455 456 protected boolean isScrolledToBottom() { 457 return true; 458 } 459 460 protected float getContentHeight() { 461 return mExpandedHeight; 462 } 463 464 @Override 465 protected void onFinishInflate() { 466 super.onFinishInflate(); 467 loadDimens(); 468 } 469 470 @Override 471 protected void onConfigurationChanged(Configuration newConfig) { 472 super.onConfigurationChanged(newConfig); 473 loadDimens(); 474 } 475 476 /** 477 * @param vel the current vertical velocity of the motion 478 * @param vectorVel the length of the vectorial velocity 479 * @return whether a fling should expands the panel; contracts otherwise 480 */ 481 protected boolean flingExpands(float vel, float vectorVel) { 482 if (!mTouchAboveFalsingThreshold && mStatusBar.isFalsingThresholdNeeded()) { 483 return true; 484 } 485 if (Math.abs(vectorVel) < mFlingAnimationUtils.getMinVelocityPxPerSecond()) { 486 return getExpandedFraction() > 0.5f; 487 } else { 488 return vel > 0; 489 } 490 } 491 492 protected void fling(float vel, boolean expand) { 493 cancelPeek(); 494 float target = expand ? getMaxPanelHeight() : 0.0f; 495 496 // Hack to make the expand transition look nice when clear all button is visible - we make 497 // the animation only to the last notification, and then jump to the maximum panel height so 498 // clear all just fades in and the decelerating motion is towards the last notification. 499 final boolean clearAllExpandHack = expand && fullyExpandedClearAllVisible() 500 && mExpandedHeight < getMaxPanelHeight() - getClearAllHeight() 501 && !isClearAllVisible(); 502 if (clearAllExpandHack) { 503 target = getMaxPanelHeight() - getClearAllHeight(); 504 } 505 if (target == mExpandedHeight || getOverExpansionAmount() > 0f && expand) { 506 notifyExpandingFinished(); 507 return; 508 } 509 mOverExpandedBeforeFling = getOverExpansionAmount() > 0f; 510 ValueAnimator animator = createHeightAnimator(target); 511 if (expand) { 512 mFlingAnimationUtils.apply(animator, mExpandedHeight, target, vel, getHeight()); 513 } else { 514 mFlingAnimationUtils.applyDismissing(animator, mExpandedHeight, target, vel, 515 getHeight()); 516 517 // Make it shorter if we run a canned animation 518 if (vel == 0) { 519 animator.setDuration((long) 520 (animator.getDuration() * getCannedFlingDurationFactor())); 521 } 522 } 523 animator.addListener(new AnimatorListenerAdapter() { 524 private boolean mCancelled; 525 526 @Override 527 public void onAnimationCancel(Animator animation) { 528 mCancelled = true; 529 } 530 531 @Override 532 public void onAnimationEnd(Animator animation) { 533 if (clearAllExpandHack && !mCancelled) { 534 setExpandedHeightInternal(getMaxPanelHeight()); 535 } 536 mHeightAnimator = null; 537 if (!mCancelled) { 538 notifyExpandingFinished(); 539 } 540 } 541 }); 542 mHeightAnimator = animator; 543 animator.start(); 544 } 545 546 @Override 547 protected void onAttachedToWindow() { 548 super.onAttachedToWindow(); 549 mViewName = getResources().getResourceName(getId()); 550 } 551 552 public String getName() { 553 return mViewName; 554 } 555 556 public void setExpandedHeight(float height) { 557 if (DEBUG) logf("setExpandedHeight(%.1f)", height); 558 setExpandedHeightInternal(height + getOverExpansionPixels()); 559 } 560 561 @Override 562 protected void onLayout (boolean changed, int left, int top, int right, int bottom) { 563 super.onLayout(changed, left, top, right, bottom); 564 requestPanelHeightUpdate(); 565 mHasLayoutedSinceDown = true; 566 if (mUpdateFlingOnLayout) { 567 abortAnimations(); 568 fling(mUpdateFlingVelocity, true); 569 mUpdateFlingOnLayout = false; 570 } 571 } 572 573 protected void requestPanelHeightUpdate() { 574 float currentMaxPanelHeight = getMaxPanelHeight(); 575 576 // If the user isn't actively poking us, let's update the height 577 if ((!mTracking || isTrackingBlocked()) 578 && mHeightAnimator == null 579 && mExpandedHeight > 0 580 && currentMaxPanelHeight != mExpandedHeight 581 && !mPeekPending 582 && mPeekAnimator == null 583 && !mPeekTouching) { 584 setExpandedHeight(currentMaxPanelHeight); 585 } 586 } 587 588 public void setExpandedHeightInternal(float h) { 589 float fhWithoutOverExpansion = getMaxPanelHeight() - getOverExpansionAmount(); 590 if (mHeightAnimator == null) { 591 float overExpansionPixels = Math.max(0, h - fhWithoutOverExpansion); 592 if (getOverExpansionPixels() != overExpansionPixels && mTracking) { 593 setOverExpansion(overExpansionPixels, true /* isPixels */); 594 } 595 mExpandedHeight = Math.min(h, fhWithoutOverExpansion) + getOverExpansionAmount(); 596 } else { 597 mExpandedHeight = h; 598 if (mOverExpandedBeforeFling) { 599 setOverExpansion(Math.max(0, h - fhWithoutOverExpansion), false /* isPixels */); 600 } 601 } 602 603 mExpandedHeight = Math.max(0, mExpandedHeight); 604 onHeightUpdated(mExpandedHeight); 605 mExpandedFraction = Math.min(1f, fhWithoutOverExpansion == 0 606 ? 0 607 : mExpandedHeight / fhWithoutOverExpansion); 608 notifyBarPanelExpansionChanged(); 609 } 610 611 /** 612 * @return true if the panel tracking should be temporarily blocked; this is used when a 613 * conflicting gesture (opening QS) is happening 614 */ 615 protected abstract boolean isTrackingBlocked(); 616 617 protected abstract void setOverExpansion(float overExpansion, boolean isPixels); 618 619 protected abstract void onHeightUpdated(float expandedHeight); 620 621 protected abstract float getOverExpansionAmount(); 622 623 protected abstract float getOverExpansionPixels(); 624 625 /** 626 * This returns the maximum height of the panel. Children should override this if their 627 * desired height is not the full height. 628 * 629 * @return the default implementation simply returns the maximum height. 630 */ 631 protected abstract int getMaxPanelHeight(); 632 633 public void setExpandedFraction(float frac) { 634 setExpandedHeight(getMaxPanelHeight() * frac); 635 } 636 637 public float getExpandedHeight() { 638 return mExpandedHeight; 639 } 640 641 public float getExpandedFraction() { 642 return mExpandedFraction; 643 } 644 645 public boolean isFullyExpanded() { 646 return mExpandedHeight >= getMaxPanelHeight(); 647 } 648 649 public boolean isFullyCollapsed() { 650 return mExpandedHeight <= 0; 651 } 652 653 public boolean isCollapsing() { 654 return mClosing; 655 } 656 657 public boolean isTracking() { 658 return mTracking; 659 } 660 661 public void setBar(PanelBar panelBar) { 662 mBar = panelBar; 663 } 664 665 public void collapse(boolean delayed) { 666 if (DEBUG) logf("collapse: " + this); 667 if (mPeekPending || mPeekAnimator != null) { 668 mCollapseAfterPeek = true; 669 if (mPeekPending) { 670 671 // We know that the whole gesture is just a peek triggered by a simple click, so 672 // better start it now. 673 removeCallbacks(mPeekRunnable); 674 mPeekRunnable.run(); 675 } 676 } else if (!isFullyCollapsed() && !mTracking) { 677 if (mHeightAnimator != null) { 678 mHeightAnimator.cancel(); 679 } 680 mClosing = true; 681 notifyExpandingStarted(); 682 if (delayed) { 683 postDelayed(new Runnable() { 684 @Override 685 public void run() { 686 fling(0, false /* expand */); 687 } 688 }, 120); 689 } else { 690 fling(0, false /* expand */); 691 } 692 } 693 } 694 695 public void expand() { 696 if (DEBUG) logf("expand: " + this); 697 if (isFullyCollapsed()) { 698 mBar.startOpeningPanel(this); 699 notifyExpandingStarted(); 700 fling(0, true /* expand */); 701 } else if (DEBUG) { 702 if (DEBUG) logf("skipping expansion: is expanded"); 703 } 704 } 705 706 public void cancelPeek() { 707 if (mPeekAnimator != null) { 708 mPeekAnimator.cancel(); 709 } 710 removeCallbacks(mPeekRunnable); 711 mPeekPending = false; 712 713 // When peeking, we already tell mBar that we expanded ourselves. Make sure that we also 714 // notify mBar that we might have closed ourselves. 715 notifyBarPanelExpansionChanged(); 716 } 717 718 public void instantExpand() { 719 mInstantExpanding = true; 720 abortAnimations(); 721 if (mTracking) { 722 onTrackingStopped(true /* expands */); // The panel is expanded after this call. 723 } 724 if (mExpanding) { 725 notifyExpandingFinished(); 726 } 727 setVisibility(VISIBLE); 728 729 // Wait for window manager to pickup the change, so we know the maximum height of the panel 730 // then. 731 getViewTreeObserver().addOnGlobalLayoutListener( 732 new ViewTreeObserver.OnGlobalLayoutListener() { 733 @Override 734 public void onGlobalLayout() { 735 if (mStatusBar.getStatusBarWindow().getHeight() 736 != mStatusBar.getStatusBarHeight()) { 737 getViewTreeObserver().removeOnGlobalLayoutListener(this); 738 setExpandedFraction(1f); 739 mInstantExpanding = false; 740 } 741 } 742 }); 743 744 // Make sure a layout really happens. 745 requestLayout(); 746 } 747 748 private void abortAnimations() { 749 cancelPeek(); 750 if (mHeightAnimator != null) { 751 mHeightAnimator.cancel(); 752 } 753 } 754 755 protected void startUnlockHintAnimation() { 756 757 // We don't need to hint the user if an animation is already running or the user is changing 758 // the expansion. 759 if (mHeightAnimator != null || mTracking) { 760 return; 761 } 762 cancelPeek(); 763 notifyExpandingStarted(); 764 startUnlockHintAnimationPhase1(new Runnable() { 765 @Override 766 public void run() { 767 notifyExpandingFinished(); 768 mStatusBar.onHintFinished(); 769 mHintAnimationRunning = false; 770 } 771 }); 772 mStatusBar.onUnlockHintStarted(); 773 mHintAnimationRunning = true; 774 } 775 776 /** 777 * Phase 1: Move everything upwards. 778 */ 779 private void startUnlockHintAnimationPhase1(final Runnable onAnimationFinished) { 780 float target = Math.max(0, getMaxPanelHeight() - mHintDistance); 781 ValueAnimator animator = createHeightAnimator(target); 782 animator.setDuration(250); 783 animator.setInterpolator(mFastOutSlowInInterpolator); 784 animator.addListener(new AnimatorListenerAdapter() { 785 private boolean mCancelled; 786 787 @Override 788 public void onAnimationCancel(Animator animation) { 789 mCancelled = true; 790 } 791 792 @Override 793 public void onAnimationEnd(Animator animation) { 794 if (mCancelled) { 795 mHeightAnimator = null; 796 onAnimationFinished.run(); 797 } else { 798 startUnlockHintAnimationPhase2(onAnimationFinished); 799 } 800 } 801 }); 802 animator.start(); 803 mHeightAnimator = animator; 804 mOriginalIndicationY = mKeyguardBottomArea.getIndicationView().getY(); 805 mKeyguardBottomArea.getIndicationView().animate() 806 .y(mOriginalIndicationY - mHintDistance) 807 .setDuration(250) 808 .setInterpolator(mFastOutSlowInInterpolator) 809 .withEndAction(new Runnable() { 810 @Override 811 public void run() { 812 mKeyguardBottomArea.getIndicationView().animate() 813 .y(mOriginalIndicationY) 814 .setDuration(450) 815 .setInterpolator(mBounceInterpolator) 816 .start(); 817 } 818 }) 819 .start(); 820 } 821 822 /** 823 * Phase 2: Bounce down. 824 */ 825 private void startUnlockHintAnimationPhase2(final Runnable onAnimationFinished) { 826 ValueAnimator animator = createHeightAnimator(getMaxPanelHeight()); 827 animator.setDuration(450); 828 animator.setInterpolator(mBounceInterpolator); 829 animator.addListener(new AnimatorListenerAdapter() { 830 @Override 831 public void onAnimationEnd(Animator animation) { 832 mHeightAnimator = null; 833 onAnimationFinished.run(); 834 } 835 }); 836 animator.start(); 837 mHeightAnimator = animator; 838 } 839 840 private ValueAnimator createHeightAnimator(float targetHeight) { 841 ValueAnimator animator = ValueAnimator.ofFloat(mExpandedHeight, targetHeight); 842 animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() { 843 @Override 844 public void onAnimationUpdate(ValueAnimator animation) { 845 setExpandedHeightInternal((Float) animation.getAnimatedValue()); 846 } 847 }); 848 return animator; 849 } 850 851 private void notifyBarPanelExpansionChanged() { 852 mBar.panelExpansionChanged(this, mExpandedFraction, mExpandedFraction > 0f || mPeekPending 853 || mPeekAnimator != null); 854 } 855 856 /** 857 * Gets called when the user performs a click anywhere in the empty area of the panel. 858 * 859 * @return whether the panel will be expanded after the action performed by this method 860 */ 861 private boolean onEmptySpaceClick(float x) { 862 if (mHintAnimationRunning) { 863 return true; 864 } 865 if (x < mEdgeTapAreaWidth 866 && mStatusBar.getBarState() == StatusBarState.KEYGUARD) { 867 onEdgeClicked(false /* right */); 868 return true; 869 } else if (x > getWidth() - mEdgeTapAreaWidth 870 && mStatusBar.getBarState() == StatusBarState.KEYGUARD) { 871 onEdgeClicked(true /* right */); 872 return true; 873 } else { 874 return onMiddleClicked(); 875 } 876 } 877 878 private final Runnable mPostCollapseRunnable = new Runnable() { 879 @Override 880 public void run() { 881 collapse(false /* delayed */); 882 } 883 }; 884 private boolean onMiddleClicked() { 885 switch (mStatusBar.getBarState()) { 886 case StatusBarState.KEYGUARD: 887 startUnlockHintAnimation(); 888 return true; 889 case StatusBarState.SHADE_LOCKED: 890 mStatusBar.goToKeyguard(); 891 return true; 892 case StatusBarState.SHADE: 893 894 // This gets called in the middle of the touch handling, where the state is still 895 // that we are tracking the panel. Collapse the panel after this is done. 896 post(mPostCollapseRunnable); 897 return false; 898 default: 899 return true; 900 } 901 } 902 903 protected abstract void onEdgeClicked(boolean right); 904 905 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 906 pw.println(String.format("[PanelView(%s): expandedHeight=%f maxPanelHeight=%d closing=%s" 907 + " tracking=%s justPeeked=%s peekAnim=%s%s timeAnim=%s%s" 908 + "]", 909 this.getClass().getSimpleName(), 910 getExpandedHeight(), 911 getMaxPanelHeight(), 912 mClosing?"T":"f", 913 mTracking?"T":"f", 914 mJustPeeked?"T":"f", 915 mPeekAnimator, ((mPeekAnimator!=null && mPeekAnimator.isStarted())?" (started)":""), 916 mHeightAnimator, ((mHeightAnimator !=null && mHeightAnimator.isStarted())?" (started)":"") 917 )); 918 } 919 920 public abstract void resetViews(); 921 922 protected abstract float getPeekHeight(); 923 924 protected abstract float getCannedFlingDurationFactor(); 925 926 /** 927 * @return whether "Clear all" button will be visible when the panel is fully expanded 928 */ 929 protected abstract boolean fullyExpandedClearAllVisible(); 930 931 protected abstract boolean isClearAllVisible(); 932 933 /** 934 * @return the height of the clear all button, in pixels 935 */ 936 protected abstract int getClearAllHeight(); 937} 938