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.os.SystemClock;
27 import android.os.VibrationEffect;
28 import android.util.AttributeSet;
29 import android.util.Log;
30 import android.view.InputDevice;
31 import android.view.MotionEvent;
32 import android.view.View;
33 import android.view.ViewConfiguration;
34 import android.view.ViewTreeObserver;
35 import android.view.animation.Interpolator;
36 import android.widget.FrameLayout;
37 
38 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
39 import com.android.internal.util.LatencyTracker;
40 import com.android.systemui.DejankUtils;
41 import com.android.systemui.Dependency;
42 import com.android.systemui.Interpolators;
43 import com.android.systemui.R;
44 import com.android.systemui.classifier.FalsingManager;
45 import com.android.systemui.doze.DozeLog;
46 import com.android.systemui.statusbar.FlingAnimationUtils;
47 import com.android.systemui.statusbar.StatusBarState;
48 import com.android.systemui.statusbar.VibratorHelper;
49 
50 import java.io.FileDescriptor;
51 import java.io.PrintWriter;
52 import java.util.function.BiConsumer;
53 
54 public abstract class PanelView extends FrameLayout {
55     public static final boolean DEBUG = PanelBar.DEBUG;
56     public static final String TAG = PanelView.class.getSimpleName();
57     private static final int INITIAL_OPENING_PEEK_DURATION = 200;
58     private static final int PEEK_ANIMATION_DURATION = 360;
59     private static final int NO_FIXED_DURATION = -1;
60     private long mDownTime;
61     private float mMinExpandHeight;
62     private LockscreenGestureLogger mLockscreenGestureLogger = new LockscreenGestureLogger();
63     private boolean mPanelUpdateWhenAnimatorEnds;
64     private boolean mVibrateOnOpening;
65     protected boolean mLaunchingNotification;
66     private int mFixedDuration = NO_FIXED_DURATION;
67     private BiConsumer<Float, Boolean> mExpansionListener;
68 
logf(String fmt, Object... args)69     private final void logf(String fmt, Object... args) {
70         Log.v(TAG, (mViewName != null ? (mViewName + ": ") : "") + String.format(fmt, args));
71     }
72 
73     protected StatusBar mStatusBar;
74     protected HeadsUpManagerPhone mHeadsUpManager;
75 
76     private float mPeekHeight;
77     private float mHintDistance;
78     private float mInitialOffsetOnTouch;
79     private boolean mCollapsedAndHeadsUpOnDown;
80     private float mExpandedFraction = 0;
81     protected float mExpandedHeight = 0;
82     private boolean mPanelClosedOnDown;
83     private boolean mHasLayoutedSinceDown;
84     private float mUpdateFlingVelocity;
85     private boolean mUpdateFlingOnLayout;
86     private boolean mPeekTouching;
87     private boolean mJustPeeked;
88     private boolean mClosing;
89     protected boolean mTracking;
90     private boolean mTouchSlopExceeded;
91     private int mTrackingPointer;
92     protected int mTouchSlop;
93     protected boolean mHintAnimationRunning;
94     private boolean mOverExpandedBeforeFling;
95     private boolean mTouchAboveFalsingThreshold;
96     private int mUnlockFalsingThreshold;
97     private boolean mTouchStartedInEmptyArea;
98     private boolean mMotionAborted;
99     private boolean mUpwardsWhenTresholdReached;
100     private boolean mAnimatingOnDown;
101 
102     private ValueAnimator mHeightAnimator;
103     private ObjectAnimator mPeekAnimator;
104     private VelocityTrackerInterface mVelocityTracker;
105     private FlingAnimationUtils mFlingAnimationUtils;
106     private FlingAnimationUtils mFlingAnimationUtilsClosing;
107     private FlingAnimationUtils mFlingAnimationUtilsDismissing;
108     private FalsingManager mFalsingManager;
109     private final VibratorHelper mVibratorHelper;
110 
111     /**
112      * Whether an instant expand request is currently pending and we are just waiting for layout.
113      */
114     private boolean mInstantExpanding;
115     private boolean mAnimateAfterExpanding;
116 
117     PanelBar mBar;
118 
119     private String mViewName;
120     private float mInitialTouchY;
121     private float mInitialTouchX;
122     private boolean mTouchDisabled;
123 
124     /**
125      * Whether or not the PanelView can be expanded or collapsed with a drag.
126      */
127     private boolean mNotificationsDragEnabled;
128 
129     private Interpolator mBounceInterpolator;
130     protected KeyguardBottomAreaView mKeyguardBottomArea;
131 
132     /**
133      * Speed-up factor to be used when {@link #mFlingCollapseRunnable} runs the next time.
134      */
135     private float mNextCollapseSpeedUpFactor = 1.0f;
136 
137     protected boolean mExpanding;
138     private boolean mGestureWaitForTouchSlop;
139     private boolean mIgnoreXTouchSlop;
140     private boolean mExpandLatencyTracking;
141 
onExpandingFinished()142     protected void onExpandingFinished() {
143         mBar.onExpandingFinished();
144     }
145 
onExpandingStarted()146     protected void onExpandingStarted() {
147     }
148 
notifyExpandingStarted()149     private void notifyExpandingStarted() {
150         if (!mExpanding) {
151             mExpanding = true;
152             onExpandingStarted();
153         }
154     }
155 
notifyExpandingFinished()156     protected final void notifyExpandingFinished() {
157         endClosing();
158         if (mExpanding) {
159             mExpanding = false;
160             onExpandingFinished();
161         }
162     }
163 
runPeekAnimation(long duration, float peekHeight, boolean collapseWhenFinished)164     private void runPeekAnimation(long duration, float peekHeight, boolean collapseWhenFinished) {
165         mPeekHeight = peekHeight;
166         if (DEBUG) logf("peek to height=%.1f", mPeekHeight);
167         if (mHeightAnimator != null) {
168             return;
169         }
170         if (mPeekAnimator != null) {
171             mPeekAnimator.cancel();
172         }
173         mPeekAnimator = ObjectAnimator.ofFloat(this, "expandedHeight", mPeekHeight)
174                 .setDuration(duration);
175         mPeekAnimator.setInterpolator(Interpolators.LINEAR_OUT_SLOW_IN);
176         mPeekAnimator.addListener(new AnimatorListenerAdapter() {
177             private boolean mCancelled;
178 
179             @Override
180             public void onAnimationCancel(Animator animation) {
181                 mCancelled = true;
182             }
183 
184             @Override
185             public void onAnimationEnd(Animator animation) {
186                 mPeekAnimator = null;
187                 if (!mCancelled && collapseWhenFinished) {
188                     postOnAnimation(mPostCollapseRunnable);
189                 }
190 
191             }
192         });
193         notifyExpandingStarted();
194         mPeekAnimator.start();
195         mJustPeeked = true;
196     }
197 
PanelView(Context context, AttributeSet attrs)198     public PanelView(Context context, AttributeSet attrs) {
199         super(context, attrs);
200         mFlingAnimationUtils = new FlingAnimationUtils(context, 0.6f /* maxLengthSeconds */,
201                 0.6f /* speedUpFactor */);
202         mFlingAnimationUtilsClosing = new FlingAnimationUtils(context, 0.5f /* maxLengthSeconds */,
203                 0.6f /* speedUpFactor */);
204         mFlingAnimationUtilsDismissing = new FlingAnimationUtils(context,
205                 0.5f /* maxLengthSeconds */, 0.2f /* speedUpFactor */, 0.6f /* x2 */,
206                 0.84f /* y2 */);
207         mBounceInterpolator = new BounceInterpolator();
208         mFalsingManager = FalsingManager.getInstance(context);
209         mNotificationsDragEnabled =
210                 getResources().getBoolean(R.bool.config_enableNotificationShadeDrag);
211         mVibratorHelper = Dependency.get(VibratorHelper.class);
212         mVibrateOnOpening = mContext.getResources().getBoolean(
213                 R.bool.config_vibrateOnIconAnimation);
214     }
215 
loadDimens()216     protected void loadDimens() {
217         final Resources res = getContext().getResources();
218         final ViewConfiguration configuration = ViewConfiguration.get(getContext());
219         mTouchSlop = configuration.getScaledTouchSlop();
220         mHintDistance = res.getDimension(R.dimen.hint_move_distance);
221         mUnlockFalsingThreshold = res.getDimensionPixelSize(R.dimen.unlock_falsing_threshold);
222     }
223 
trackMovement(MotionEvent event)224     private void trackMovement(MotionEvent event) {
225         // Add movement to velocity tracker using raw screen X and Y coordinates instead
226         // of window coordinates because the window frame may be moving at the same time.
227         float deltaX = event.getRawX() - event.getX();
228         float deltaY = event.getRawY() - event.getY();
229         event.offsetLocation(deltaX, deltaY);
230         if (mVelocityTracker != null) mVelocityTracker.addMovement(event);
231         event.offsetLocation(-deltaX, -deltaY);
232     }
233 
setTouchDisabled(boolean disabled)234     public void setTouchDisabled(boolean disabled) {
235         mTouchDisabled = disabled;
236         if (mTouchDisabled) {
237             cancelHeightAnimator();
238             if (mTracking) {
239                 onTrackingStopped(true /* expanded */);
240             }
241             notifyExpandingFinished();
242         }
243     }
244 
startExpandLatencyTracking()245     public void startExpandLatencyTracking() {
246         if (LatencyTracker.isEnabled(mContext)) {
247             LatencyTracker.getInstance(mContext).onActionStart(
248                     LatencyTracker.ACTION_EXPAND_PANEL);
249             mExpandLatencyTracking = true;
250         }
251     }
252 
253     @Override
onTouchEvent(MotionEvent event)254     public boolean onTouchEvent(MotionEvent event) {
255         if (mInstantExpanding
256                 || (mTouchDisabled && event.getActionMasked() != MotionEvent.ACTION_CANCEL)
257                 || (mMotionAborted && event.getActionMasked() != MotionEvent.ACTION_DOWN)) {
258             return false;
259         }
260 
261         // If dragging should not expand the notifications shade, then return false.
262         if (!mNotificationsDragEnabled) {
263             if (mTracking) {
264                 // Turn off tracking if it's on or the shade can get stuck in the down position.
265                 onTrackingStopped(true /* expand */);
266             }
267             return false;
268         }
269 
270         // On expanding, single mouse click expands the panel instead of dragging.
271         if (isFullyCollapsed() && event.isFromSource(InputDevice.SOURCE_MOUSE)) {
272             if (event.getAction() == MotionEvent.ACTION_UP) {
273                 expand(true);
274             }
275             return true;
276         }
277 
278         /*
279          * We capture touch events here and update the expand height here in case according to
280          * the users fingers. This also handles multi-touch.
281          *
282          * If the user just clicks shortly, we show a quick peek of the shade.
283          *
284          * Flinging is also enabled in order to open or close the shade.
285          */
286 
287         int pointerIndex = event.findPointerIndex(mTrackingPointer);
288         if (pointerIndex < 0) {
289             pointerIndex = 0;
290             mTrackingPointer = event.getPointerId(pointerIndex);
291         }
292         final float x = event.getX(pointerIndex);
293         final float y = event.getY(pointerIndex);
294 
295         if (event.getActionMasked() == MotionEvent.ACTION_DOWN) {
296             mGestureWaitForTouchSlop = isFullyCollapsed() || hasConflictingGestures();
297             mIgnoreXTouchSlop = isFullyCollapsed() || shouldGestureIgnoreXTouchSlop(x, y);
298         }
299 
300         switch (event.getActionMasked()) {
301             case MotionEvent.ACTION_DOWN:
302                 startExpandMotion(x, y, false /* startTracking */, mExpandedHeight);
303                 mJustPeeked = false;
304                 mMinExpandHeight = 0.0f;
305                 mPanelClosedOnDown = isFullyCollapsed();
306                 mHasLayoutedSinceDown = false;
307                 mUpdateFlingOnLayout = false;
308                 mMotionAborted = false;
309                 mPeekTouching = mPanelClosedOnDown;
310                 mDownTime = SystemClock.uptimeMillis();
311                 mTouchAboveFalsingThreshold = false;
312                 mCollapsedAndHeadsUpOnDown = isFullyCollapsed()
313                         && mHeadsUpManager.hasPinnedHeadsUp();
314                 if (mVelocityTracker == null) {
315                     initVelocityTracker();
316                 }
317                 trackMovement(event);
318                 if (!mGestureWaitForTouchSlop || (mHeightAnimator != null && !mHintAnimationRunning)
319                         || mPeekAnimator != null) {
320                     mTouchSlopExceeded = (mHeightAnimator != null && !mHintAnimationRunning)
321                             || mPeekAnimator != null;
322                     cancelHeightAnimator();
323                     cancelPeek();
324                     onTrackingStarted();
325                 }
326                 if (isFullyCollapsed() && !mHeadsUpManager.hasPinnedHeadsUp()
327                         && !mStatusBar.isBouncerShowing()) {
328                     startOpening(event);
329                 }
330                 break;
331 
332             case MotionEvent.ACTION_POINTER_UP:
333                 final int upPointer = event.getPointerId(event.getActionIndex());
334                 if (mTrackingPointer == upPointer) {
335                     // gesture is ongoing, find a new pointer to track
336                     final int newIndex = event.getPointerId(0) != upPointer ? 0 : 1;
337                     final float newY = event.getY(newIndex);
338                     final float newX = event.getX(newIndex);
339                     mTrackingPointer = event.getPointerId(newIndex);
340                     startExpandMotion(newX, newY, true /* startTracking */, mExpandedHeight);
341                 }
342                 break;
343             case MotionEvent.ACTION_POINTER_DOWN:
344                 if (mStatusBar.getBarState() == StatusBarState.KEYGUARD) {
345                     mMotionAborted = true;
346                     endMotionEvent(event, x, y, true /* forceCancel */);
347                     return false;
348                 }
349                 break;
350             case MotionEvent.ACTION_MOVE:
351                 trackMovement(event);
352                 float h = y - mInitialTouchY;
353 
354                 // If the panel was collapsed when touching, we only need to check for the
355                 // y-component of the gesture, as we have no conflicting horizontal gesture.
356                 if (Math.abs(h) > mTouchSlop
357                         && (Math.abs(h) > Math.abs(x - mInitialTouchX)
358                         || mIgnoreXTouchSlop)) {
359                     mTouchSlopExceeded = true;
360                     if (mGestureWaitForTouchSlop && !mTracking && !mCollapsedAndHeadsUpOnDown) {
361                         if (!mJustPeeked && mInitialOffsetOnTouch != 0f) {
362                             startExpandMotion(x, y, false /* startTracking */, mExpandedHeight);
363                             h = 0;
364                         }
365                         cancelHeightAnimator();
366                         onTrackingStarted();
367                     }
368                 }
369                 float newHeight = Math.max(0, h + mInitialOffsetOnTouch);
370                 if (newHeight > mPeekHeight) {
371                     if (mPeekAnimator != null) {
372                         mPeekAnimator.cancel();
373                     }
374                     mJustPeeked = false;
375                 } else if (mPeekAnimator == null && mJustPeeked) {
376                     // The initial peek has finished, but we haven't dragged as far yet, lets
377                     // speed it up by starting at the peek height.
378                     mInitialOffsetOnTouch = mExpandedHeight;
379                     mInitialTouchY = y;
380                     mMinExpandHeight = mExpandedHeight;
381                     mJustPeeked = false;
382                 }
383                 newHeight = Math.max(newHeight, mMinExpandHeight);
384                 if (-h >= getFalsingThreshold()) {
385                     mTouchAboveFalsingThreshold = true;
386                     mUpwardsWhenTresholdReached = isDirectionUpwards(x, y);
387                 }
388                 if (!mJustPeeked && (!mGestureWaitForTouchSlop || mTracking) &&
389                         !isTrackingBlocked()) {
390                     setExpandedHeightInternal(newHeight);
391                 }
392                 break;
393 
394             case MotionEvent.ACTION_UP:
395             case MotionEvent.ACTION_CANCEL:
396                 trackMovement(event);
397                 endMotionEvent(event, x, y, false /* forceCancel */);
398                 break;
399         }
400         return !mGestureWaitForTouchSlop || mTracking;
401     }
402 
startOpening(MotionEvent event)403     private void startOpening(MotionEvent event) {
404         runPeekAnimation(INITIAL_OPENING_PEEK_DURATION, getOpeningHeight(),
405                 false /* collapseWhenFinished */);
406         notifyBarPanelExpansionChanged();
407         if (mVibrateOnOpening) {
408             mVibratorHelper.vibrate(VibrationEffect.EFFECT_TICK);
409         }
410 
411         //TODO: keyguard opens QS a different way; log that too?
412 
413         // Log the position of the swipe that opened the panel
414         float width = mStatusBar.getDisplayWidth();
415         float height = mStatusBar.getDisplayHeight();
416         int rot = mStatusBar.getRotation();
417 
418         mLockscreenGestureLogger.writeAtFractionalPosition(MetricsEvent.ACTION_PANEL_VIEW_EXPAND,
419                 (int) (event.getX() / width * 100),
420                 (int) (event.getY() / height * 100),
421                 rot);
422     }
423 
getOpeningHeight()424     protected abstract float getOpeningHeight();
425 
426     /**
427      * @return whether the swiping direction is upwards and above a 45 degree angle compared to the
428      * horizontal direction
429      */
isDirectionUpwards(float x, float y)430     private boolean isDirectionUpwards(float x, float y) {
431         float xDiff = x - mInitialTouchX;
432         float yDiff = y - mInitialTouchY;
433         if (yDiff >= 0) {
434             return false;
435         }
436         return Math.abs(yDiff) >= Math.abs(xDiff);
437     }
438 
startExpandingFromPeek()439     protected void startExpandingFromPeek() {
440         mStatusBar.handlePeekToExpandTransistion();
441     }
442 
startExpandMotion(float newX, float newY, boolean startTracking, float expandedHeight)443     protected void startExpandMotion(float newX, float newY, boolean startTracking,
444             float expandedHeight) {
445         mInitialOffsetOnTouch = expandedHeight;
446         mInitialTouchY = newY;
447         mInitialTouchX = newX;
448         if (startTracking) {
449             mTouchSlopExceeded = true;
450             setExpandedHeight(mInitialOffsetOnTouch);
451             onTrackingStarted();
452         }
453     }
454 
endMotionEvent(MotionEvent event, float x, float y, boolean forceCancel)455     private void endMotionEvent(MotionEvent event, float x, float y, boolean forceCancel) {
456         mTrackingPointer = -1;
457         if ((mTracking && mTouchSlopExceeded)
458                 || Math.abs(x - mInitialTouchX) > mTouchSlop
459                 || Math.abs(y - mInitialTouchY) > mTouchSlop
460                 || event.getActionMasked() == MotionEvent.ACTION_CANCEL
461                 || forceCancel) {
462             float vel = 0f;
463             float vectorVel = 0f;
464             if (mVelocityTracker != null) {
465                 mVelocityTracker.computeCurrentVelocity(1000);
466                 vel = mVelocityTracker.getYVelocity();
467                 vectorVel = (float) Math.hypot(
468                         mVelocityTracker.getXVelocity(), mVelocityTracker.getYVelocity());
469             }
470             boolean expand = flingExpands(vel, vectorVel, x, y)
471                     || event.getActionMasked() == MotionEvent.ACTION_CANCEL
472                     || forceCancel;
473             DozeLog.traceFling(expand, mTouchAboveFalsingThreshold,
474                     mStatusBar.isFalsingThresholdNeeded(),
475                     mStatusBar.isWakeUpComingFromTouch());
476                     // Log collapse gesture if on lock screen.
477                     if (!expand && mStatusBar.getBarState() == StatusBarState.KEYGUARD) {
478                         float displayDensity = mStatusBar.getDisplayDensity();
479                         int heightDp = (int) Math.abs((y - mInitialTouchY) / displayDensity);
480                         int velocityDp = (int) Math.abs(vel / displayDensity);
481                         mLockscreenGestureLogger.write(
482                                 MetricsEvent.ACTION_LS_UNLOCK,
483                                 heightDp, velocityDp);
484                     }
485             fling(vel, expand, isFalseTouch(x, y));
486             onTrackingStopped(expand);
487             mUpdateFlingOnLayout = expand && mPanelClosedOnDown && !mHasLayoutedSinceDown;
488             if (mUpdateFlingOnLayout) {
489                 mUpdateFlingVelocity = vel;
490             }
491         } else if (mPanelClosedOnDown && !mHeadsUpManager.hasPinnedHeadsUp() && !mTracking
492                 && !mStatusBar.isBouncerShowing() && !mStatusBar.isKeyguardFadingAway()) {
493             long timePassed = SystemClock.uptimeMillis() - mDownTime;
494             if (timePassed < ViewConfiguration.getLongPressTimeout()) {
495                 // Lets show the user that he can actually expand the panel
496                 runPeekAnimation(PEEK_ANIMATION_DURATION, getPeekHeight(), true /* collapseWhenFinished */);
497             } else {
498                 // We need to collapse the panel since we peeked to the small height.
499                 postOnAnimation(mPostCollapseRunnable);
500             }
501         } else if (!mStatusBar.isBouncerShowing()) {
502             boolean expands = onEmptySpaceClick(mInitialTouchX);
503             onTrackingStopped(expands);
504         }
505 
506         if (mVelocityTracker != null) {
507             mVelocityTracker.recycle();
508             mVelocityTracker = null;
509         }
510         mPeekTouching = false;
511     }
512 
getCurrentExpandVelocity()513     protected float getCurrentExpandVelocity() {
514         if (mVelocityTracker == null) {
515             return 0;
516         }
517         mVelocityTracker.computeCurrentVelocity(1000);
518         return mVelocityTracker.getYVelocity();
519     }
520 
getFalsingThreshold()521     private int getFalsingThreshold() {
522         float factor = mStatusBar.isWakeUpComingFromTouch() ? 1.5f : 1.0f;
523         return (int) (mUnlockFalsingThreshold * factor);
524     }
525 
hasConflictingGestures()526     protected abstract boolean hasConflictingGestures();
527 
shouldGestureIgnoreXTouchSlop(float x, float y)528     protected abstract boolean shouldGestureIgnoreXTouchSlop(float x, float y);
529 
onTrackingStopped(boolean expand)530     protected void onTrackingStopped(boolean expand) {
531         mTracking = false;
532         mBar.onTrackingStopped(expand);
533         notifyBarPanelExpansionChanged();
534     }
535 
onTrackingStarted()536     protected void onTrackingStarted() {
537         endClosing();
538         mTracking = true;
539         mBar.onTrackingStarted();
540         notifyExpandingStarted();
541         notifyBarPanelExpansionChanged();
542     }
543 
544     @Override
onInterceptTouchEvent(MotionEvent event)545     public boolean onInterceptTouchEvent(MotionEvent event) {
546         if (mInstantExpanding || !mNotificationsDragEnabled || mTouchDisabled
547                 || (mMotionAborted && event.getActionMasked() != MotionEvent.ACTION_DOWN)) {
548             return false;
549         }
550 
551         /*
552          * If the user drags anywhere inside the panel we intercept it if the movement is
553          * upwards. This allows closing the shade from anywhere inside the panel.
554          *
555          * We only do this if the current content is scrolled to the bottom,
556          * i.e isScrolledToBottom() is true and therefore there is no conflicting scrolling gesture
557          * possible.
558          */
559         int pointerIndex = event.findPointerIndex(mTrackingPointer);
560         if (pointerIndex < 0) {
561             pointerIndex = 0;
562             mTrackingPointer = event.getPointerId(pointerIndex);
563         }
564         final float x = event.getX(pointerIndex);
565         final float y = event.getY(pointerIndex);
566         boolean scrolledToBottom = isScrolledToBottom();
567 
568         switch (event.getActionMasked()) {
569             case MotionEvent.ACTION_DOWN:
570                 mStatusBar.userActivity();
571                 mAnimatingOnDown = mHeightAnimator != null;
572                 mMinExpandHeight = 0.0f;
573                 mDownTime = SystemClock.uptimeMillis();
574                 if (mAnimatingOnDown && mClosing && !mHintAnimationRunning
575                         || mPeekAnimator != null) {
576                     cancelHeightAnimator();
577                     cancelPeek();
578                     mTouchSlopExceeded = true;
579                     return true;
580                 }
581                 mInitialTouchY = y;
582                 mInitialTouchX = x;
583                 mTouchStartedInEmptyArea = !isInContentBounds(x, y);
584                 mTouchSlopExceeded = false;
585                 mJustPeeked = false;
586                 mMotionAborted = false;
587                 mPanelClosedOnDown = isFullyCollapsed();
588                 mCollapsedAndHeadsUpOnDown = false;
589                 mHasLayoutedSinceDown = false;
590                 mUpdateFlingOnLayout = false;
591                 mTouchAboveFalsingThreshold = false;
592                 initVelocityTracker();
593                 trackMovement(event);
594                 break;
595             case MotionEvent.ACTION_POINTER_UP:
596                 final int upPointer = event.getPointerId(event.getActionIndex());
597                 if (mTrackingPointer == upPointer) {
598                     // gesture is ongoing, find a new pointer to track
599                     final int newIndex = event.getPointerId(0) != upPointer ? 0 : 1;
600                     mTrackingPointer = event.getPointerId(newIndex);
601                     mInitialTouchX = event.getX(newIndex);
602                     mInitialTouchY = event.getY(newIndex);
603                 }
604                 break;
605             case MotionEvent.ACTION_POINTER_DOWN:
606                 if (mStatusBar.getBarState() == StatusBarState.KEYGUARD) {
607                     mMotionAborted = true;
608                     if (mVelocityTracker != null) {
609                         mVelocityTracker.recycle();
610                         mVelocityTracker = null;
611                     }
612                 }
613                 break;
614             case MotionEvent.ACTION_MOVE:
615                 final float h = y - mInitialTouchY;
616                 trackMovement(event);
617                 if (scrolledToBottom || mTouchStartedInEmptyArea || mAnimatingOnDown) {
618                     float hAbs = Math.abs(h);
619                     if ((h < -mTouchSlop || (mAnimatingOnDown && hAbs > mTouchSlop))
620                             && hAbs > Math.abs(x - mInitialTouchX)) {
621                         cancelHeightAnimator();
622                         startExpandMotion(x, y, true /* startTracking */, mExpandedHeight);
623                         return true;
624                     }
625                 }
626                 break;
627             case MotionEvent.ACTION_CANCEL:
628             case MotionEvent.ACTION_UP:
629                 if (mVelocityTracker != null) {
630                     mVelocityTracker.recycle();
631                     mVelocityTracker = null;
632                 }
633                 break;
634         }
635         return false;
636     }
637 
638     /**
639      * @return Whether a pair of coordinates are inside the visible view content bounds.
640      */
isInContentBounds(float x, float y)641     protected abstract boolean isInContentBounds(float x, float y);
642 
cancelHeightAnimator()643     protected void cancelHeightAnimator() {
644         if (mHeightAnimator != null) {
645             if (mHeightAnimator.isRunning()) {
646                 mPanelUpdateWhenAnimatorEnds = false;
647             }
648             mHeightAnimator.cancel();
649         }
650         endClosing();
651     }
652 
endClosing()653     private void endClosing() {
654         if (mClosing) {
655             mClosing = false;
656             onClosingFinished();
657         }
658     }
659 
initVelocityTracker()660     private void initVelocityTracker() {
661         if (mVelocityTracker != null) {
662             mVelocityTracker.recycle();
663         }
664         mVelocityTracker = VelocityTrackerFactory.obtain(getContext());
665     }
666 
isScrolledToBottom()667     protected boolean isScrolledToBottom() {
668         return true;
669     }
670 
getContentHeight()671     protected float getContentHeight() {
672         return mExpandedHeight;
673     }
674 
675     @Override
onFinishInflate()676     protected void onFinishInflate() {
677         super.onFinishInflate();
678         loadDimens();
679     }
680 
681     @Override
onConfigurationChanged(Configuration newConfig)682     protected void onConfigurationChanged(Configuration newConfig) {
683         super.onConfigurationChanged(newConfig);
684         loadDimens();
685     }
686 
687     /**
688      * @param vel the current vertical velocity of the motion
689      * @param vectorVel the length of the vectorial velocity
690      * @return whether a fling should expands the panel; contracts otherwise
691      */
flingExpands(float vel, float vectorVel, float x, float y)692     protected boolean flingExpands(float vel, float vectorVel, float x, float y) {
693         if (isFalseTouch(x, y)) {
694             return true;
695         }
696         if (Math.abs(vectorVel) < mFlingAnimationUtils.getMinVelocityPxPerSecond()) {
697             return getExpandedFraction() > 0.5f;
698         } else {
699             return vel > 0;
700         }
701     }
702 
703     /**
704      * @param x the final x-coordinate when the finger was lifted
705      * @param y the final y-coordinate when the finger was lifted
706      * @return whether this motion should be regarded as a false touch
707      */
isFalseTouch(float x, float y)708     private boolean isFalseTouch(float x, float y) {
709         if (!mStatusBar.isFalsingThresholdNeeded()) {
710             return false;
711         }
712         if (mFalsingManager.isClassiferEnabled()) {
713             return mFalsingManager.isFalseTouch();
714         }
715         if (!mTouchAboveFalsingThreshold) {
716             return true;
717         }
718         if (mUpwardsWhenTresholdReached) {
719             return false;
720         }
721         return !isDirectionUpwards(x, y);
722     }
723 
fling(float vel, boolean expand)724     protected void fling(float vel, boolean expand) {
725         fling(vel, expand, 1.0f /* collapseSpeedUpFactor */, false);
726     }
727 
fling(float vel, boolean expand, boolean expandBecauseOfFalsing)728     protected void fling(float vel, boolean expand, boolean expandBecauseOfFalsing) {
729         fling(vel, expand, 1.0f /* collapseSpeedUpFactor */, expandBecauseOfFalsing);
730     }
731 
fling(float vel, boolean expand, float collapseSpeedUpFactor, boolean expandBecauseOfFalsing)732     protected void fling(float vel, boolean expand, float collapseSpeedUpFactor,
733             boolean expandBecauseOfFalsing) {
734         cancelPeek();
735         float target = expand ? getMaxPanelHeight() : 0;
736         if (!expand) {
737             mClosing = true;
738         }
739         flingToHeight(vel, expand, target, collapseSpeedUpFactor, expandBecauseOfFalsing);
740     }
741 
flingToHeight(float vel, boolean expand, float target, float collapseSpeedUpFactor, boolean expandBecauseOfFalsing)742     protected void flingToHeight(float vel, boolean expand, float target,
743             float collapseSpeedUpFactor, boolean expandBecauseOfFalsing) {
744         // Hack to make the expand transition look nice when clear all button is visible - we make
745         // the animation only to the last notification, and then jump to the maximum panel height so
746         // clear all just fades in and the decelerating motion is towards the last notification.
747         final boolean clearAllExpandHack = expand && fullyExpandedClearAllVisible()
748                 && mExpandedHeight < getMaxPanelHeight() - getClearAllHeight()
749                 && !isClearAllVisible();
750         if (clearAllExpandHack) {
751             target = getMaxPanelHeight() - getClearAllHeight();
752         }
753         if (target == mExpandedHeight || getOverExpansionAmount() > 0f && expand) {
754             notifyExpandingFinished();
755             return;
756         }
757         mOverExpandedBeforeFling = getOverExpansionAmount() > 0f;
758         ValueAnimator animator = createHeightAnimator(target);
759         if (expand) {
760             if (expandBecauseOfFalsing && vel < 0) {
761                 vel = 0;
762             }
763             mFlingAnimationUtils.apply(animator, mExpandedHeight, target, vel, getHeight());
764             if (vel == 0) {
765                 animator.setDuration(350);
766             }
767         } else {
768             if (shouldUseDismissingAnimation()) {
769                 if (vel == 0) {
770                     animator.setInterpolator(Interpolators.PANEL_CLOSE_ACCELERATED);
771                     long duration = (long) (200 + mExpandedHeight / getHeight() * 100);
772                     animator.setDuration(duration);
773                 } else {
774                     mFlingAnimationUtilsDismissing.apply(animator, mExpandedHeight, target, vel,
775                             getHeight());
776                 }
777             } else {
778                 mFlingAnimationUtilsClosing
779                         .apply(animator, mExpandedHeight, target, vel, getHeight());
780             }
781 
782             // Make it shorter if we run a canned animation
783             if (vel == 0) {
784                 animator.setDuration((long) (animator.getDuration() / collapseSpeedUpFactor));
785             }
786             if (mFixedDuration != NO_FIXED_DURATION) {
787                 animator.setDuration(mFixedDuration);
788             }
789         }
790         animator.addListener(new AnimatorListenerAdapter() {
791             private boolean mCancelled;
792 
793             @Override
794             public void onAnimationCancel(Animator animation) {
795                 mCancelled = true;
796             }
797 
798             @Override
799             public void onAnimationEnd(Animator animation) {
800                 if (clearAllExpandHack && !mCancelled) {
801                     setExpandedHeightInternal(getMaxPanelHeight());
802                 }
803                 setAnimator(null);
804                 if (!mCancelled) {
805                     notifyExpandingFinished();
806                 }
807                 notifyBarPanelExpansionChanged();
808             }
809         });
810         setAnimator(animator);
811         animator.start();
812     }
813 
shouldUseDismissingAnimation()814     protected abstract boolean shouldUseDismissingAnimation();
815 
816     @Override
onAttachedToWindow()817     protected void onAttachedToWindow() {
818         super.onAttachedToWindow();
819         mViewName = getResources().getResourceName(getId());
820     }
821 
getName()822     public String getName() {
823         return mViewName;
824     }
825 
setExpandedHeight(float height)826     public void setExpandedHeight(float height) {
827         if (DEBUG) logf("setExpandedHeight(%.1f)", height);
828         setExpandedHeightInternal(height + getOverExpansionPixels());
829     }
830 
831     @Override
onLayout(boolean changed, int left, int top, int right, int bottom)832     protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
833         super.onLayout(changed, left, top, right, bottom);
834         mStatusBar.onPanelLaidOut();
835         requestPanelHeightUpdate();
836         mHasLayoutedSinceDown = true;
837         if (mUpdateFlingOnLayout) {
838             abortAnimations();
839             fling(mUpdateFlingVelocity, true /* expands */);
840             mUpdateFlingOnLayout = false;
841         }
842     }
843 
requestPanelHeightUpdate()844     protected void requestPanelHeightUpdate() {
845         float currentMaxPanelHeight = getMaxPanelHeight();
846 
847         if (isFullyCollapsed()) {
848             return;
849         }
850 
851         if (currentMaxPanelHeight == mExpandedHeight) {
852             return;
853         }
854 
855         if (mPeekAnimator != null || mPeekTouching) {
856             return;
857         }
858 
859         if (mTracking && !isTrackingBlocked()) {
860             return;
861         }
862 
863         if (mHeightAnimator != null) {
864             mPanelUpdateWhenAnimatorEnds = true;
865             return;
866         }
867 
868         setExpandedHeight(currentMaxPanelHeight);
869     }
870 
setExpandedHeightInternal(float h)871     public void setExpandedHeightInternal(float h) {
872         if (mExpandLatencyTracking && h != 0f) {
873             DejankUtils.postAfterTraversal(() -> LatencyTracker.getInstance(mContext).onActionEnd(
874                     LatencyTracker.ACTION_EXPAND_PANEL));
875             mExpandLatencyTracking = false;
876         }
877         float fhWithoutOverExpansion = getMaxPanelHeight() - getOverExpansionAmount();
878         if (mHeightAnimator == null) {
879             float overExpansionPixels = Math.max(0, h - fhWithoutOverExpansion);
880             if (getOverExpansionPixels() != overExpansionPixels && mTracking) {
881                 setOverExpansion(overExpansionPixels, true /* isPixels */);
882             }
883             mExpandedHeight = Math.min(h, fhWithoutOverExpansion) + getOverExpansionAmount();
884         } else {
885             mExpandedHeight = h;
886             if (mOverExpandedBeforeFling) {
887                 setOverExpansion(Math.max(0, h - fhWithoutOverExpansion), false /* isPixels */);
888             }
889         }
890 
891         // If we are closing the panel and we are almost there due to a slow decelerating
892         // interpolator, abort the animation.
893         if (mExpandedHeight < 1f && mExpandedHeight != 0f && mClosing) {
894             mExpandedHeight = 0f;
895             if (mHeightAnimator != null) {
896                 mHeightAnimator.end();
897             }
898         }
899         mExpandedFraction = Math.min(1f,
900                 fhWithoutOverExpansion == 0 ? 0 : mExpandedHeight / fhWithoutOverExpansion);
901         onHeightUpdated(mExpandedHeight);
902         notifyBarPanelExpansionChanged();
903     }
904 
905     /**
906      * @return true if the panel tracking should be temporarily blocked; this is used when a
907      *         conflicting gesture (opening QS) is happening
908      */
isTrackingBlocked()909     protected abstract boolean isTrackingBlocked();
910 
setOverExpansion(float overExpansion, boolean isPixels)911     protected abstract void setOverExpansion(float overExpansion, boolean isPixels);
912 
onHeightUpdated(float expandedHeight)913     protected abstract void onHeightUpdated(float expandedHeight);
914 
getOverExpansionAmount()915     protected abstract float getOverExpansionAmount();
916 
getOverExpansionPixels()917     protected abstract float getOverExpansionPixels();
918 
919     /**
920      * This returns the maximum height of the panel. Children should override this if their
921      * desired height is not the full height.
922      *
923      * @return the default implementation simply returns the maximum height.
924      */
getMaxPanelHeight()925     protected abstract int getMaxPanelHeight();
926 
setExpandedFraction(float frac)927     public void setExpandedFraction(float frac) {
928         setExpandedHeight(getMaxPanelHeight() * frac);
929     }
930 
getExpandedHeight()931     public float getExpandedHeight() {
932         return mExpandedHeight;
933     }
934 
getExpandedFraction()935     public float getExpandedFraction() {
936         return mExpandedFraction;
937     }
938 
isFullyExpanded()939     public boolean isFullyExpanded() {
940         return mExpandedHeight >= getMaxPanelHeight();
941     }
942 
isFullyCollapsed()943     public boolean isFullyCollapsed() {
944         return mExpandedFraction <= 0.0f;
945     }
946 
isCollapsing()947     public boolean isCollapsing() {
948         return mClosing || mLaunchingNotification;
949     }
950 
isTracking()951     public boolean isTracking() {
952         return mTracking;
953     }
954 
setBar(PanelBar panelBar)955     public void setBar(PanelBar panelBar) {
956         mBar = panelBar;
957     }
958 
collapse(boolean delayed, float speedUpFactor)959     public void collapse(boolean delayed, float speedUpFactor) {
960         if (DEBUG) logf("collapse: " + this);
961         if (canPanelBeCollapsed()) {
962             cancelHeightAnimator();
963             notifyExpandingStarted();
964 
965             // Set after notifyExpandingStarted, as notifyExpandingStarted resets the closing state.
966             mClosing = true;
967             if (delayed) {
968                 mNextCollapseSpeedUpFactor = speedUpFactor;
969                 postDelayed(mFlingCollapseRunnable, 120);
970             } else {
971                 fling(0, false /* expand */, speedUpFactor, false /* expandBecauseOfFalsing */);
972             }
973         }
974     }
975 
canPanelBeCollapsed()976     public boolean canPanelBeCollapsed() {
977         return !isFullyCollapsed() && !mTracking && !mClosing;
978     }
979 
980     private final Runnable mFlingCollapseRunnable = new Runnable() {
981         @Override
982         public void run() {
983             fling(0, false /* expand */, mNextCollapseSpeedUpFactor,
984                     false /* expandBecauseOfFalsing */);
985         }
986     };
987 
cancelPeek()988     public void cancelPeek() {
989         boolean cancelled = false;
990         if (mPeekAnimator != null) {
991             cancelled = true;
992             mPeekAnimator.cancel();
993         }
994 
995         if (cancelled) {
996             // When peeking, we already tell mBar that we expanded ourselves. Make sure that we also
997             // notify mBar that we might have closed ourselves.
998             notifyBarPanelExpansionChanged();
999         }
1000     }
1001 
expand(final boolean animate)1002     public void expand(final boolean animate) {
1003         if (!isFullyCollapsed() && !isCollapsing()) {
1004             return;
1005         }
1006 
1007         mInstantExpanding = true;
1008         mAnimateAfterExpanding = animate;
1009         mUpdateFlingOnLayout = false;
1010         abortAnimations();
1011         cancelPeek();
1012         if (mTracking) {
1013             onTrackingStopped(true /* expands */); // The panel is expanded after this call.
1014         }
1015         if (mExpanding) {
1016             notifyExpandingFinished();
1017         }
1018         notifyBarPanelExpansionChanged();
1019 
1020         // Wait for window manager to pickup the change, so we know the maximum height of the panel
1021         // then.
1022         getViewTreeObserver().addOnGlobalLayoutListener(
1023                 new ViewTreeObserver.OnGlobalLayoutListener() {
1024                     @Override
1025                     public void onGlobalLayout() {
1026                         if (!mInstantExpanding) {
1027                             getViewTreeObserver().removeOnGlobalLayoutListener(this);
1028                             return;
1029                         }
1030                         if (mStatusBar.getStatusBarWindow().getHeight()
1031                                 != mStatusBar.getStatusBarHeight()) {
1032                             getViewTreeObserver().removeOnGlobalLayoutListener(this);
1033                             if (mAnimateAfterExpanding) {
1034                                 notifyExpandingStarted();
1035                                 fling(0, true /* expand */);
1036                             } else {
1037                                 setExpandedFraction(1f);
1038                             }
1039                             mInstantExpanding = false;
1040                         }
1041                     }
1042                 });
1043 
1044         // Make sure a layout really happens.
1045         requestLayout();
1046     }
1047 
instantCollapse()1048     public void instantCollapse() {
1049         abortAnimations();
1050         setExpandedFraction(0f);
1051         if (mExpanding) {
1052             notifyExpandingFinished();
1053         }
1054         if (mInstantExpanding) {
1055             mInstantExpanding = false;
1056             notifyBarPanelExpansionChanged();
1057         }
1058     }
1059 
abortAnimations()1060     private void abortAnimations() {
1061         cancelPeek();
1062         cancelHeightAnimator();
1063         removeCallbacks(mPostCollapseRunnable);
1064         removeCallbacks(mFlingCollapseRunnable);
1065     }
1066 
onClosingFinished()1067     protected void onClosingFinished() {
1068         mBar.onClosingFinished();
1069     }
1070 
1071 
startUnlockHintAnimation()1072     protected void startUnlockHintAnimation() {
1073 
1074         // We don't need to hint the user if an animation is already running or the user is changing
1075         // the expansion.
1076         if (mHeightAnimator != null || mTracking) {
1077             return;
1078         }
1079         cancelPeek();
1080         notifyExpandingStarted();
1081         startUnlockHintAnimationPhase1(() -> {
1082             notifyExpandingFinished();
1083             onUnlockHintFinished();
1084             mHintAnimationRunning = false;
1085         });
1086         onUnlockHintStarted();
1087         mHintAnimationRunning = true;
1088     }
1089 
onUnlockHintFinished()1090     protected void onUnlockHintFinished() {
1091         mStatusBar.onHintFinished();
1092     }
1093 
onUnlockHintStarted()1094     protected void onUnlockHintStarted() {
1095         mStatusBar.onUnlockHintStarted();
1096     }
1097 
isUnlockHintRunning()1098     public boolean isUnlockHintRunning() {
1099         return mHintAnimationRunning;
1100     }
1101 
1102     /**
1103      * Phase 1: Move everything upwards.
1104      */
startUnlockHintAnimationPhase1(final Runnable onAnimationFinished)1105     private void startUnlockHintAnimationPhase1(final Runnable onAnimationFinished) {
1106         float target = Math.max(0, getMaxPanelHeight() - mHintDistance);
1107         ValueAnimator animator = createHeightAnimator(target);
1108         animator.setDuration(250);
1109         animator.setInterpolator(Interpolators.FAST_OUT_SLOW_IN);
1110         animator.addListener(new AnimatorListenerAdapter() {
1111             private boolean mCancelled;
1112 
1113             @Override
1114             public void onAnimationCancel(Animator animation) {
1115                 mCancelled = true;
1116             }
1117 
1118             @Override
1119             public void onAnimationEnd(Animator animation) {
1120                 if (mCancelled) {
1121                     setAnimator(null);
1122                     onAnimationFinished.run();
1123                 } else {
1124                     startUnlockHintAnimationPhase2(onAnimationFinished);
1125                 }
1126             }
1127         });
1128         animator.start();
1129         setAnimator(animator);
1130 
1131         View[] viewsToAnimate = {
1132                 mKeyguardBottomArea.getIndicationArea(),
1133                 mStatusBar.getAmbientIndicationContainer()};
1134         for (View v : viewsToAnimate) {
1135             if (v == null) {
1136                 continue;
1137             }
1138             v.animate()
1139                     .translationY(-mHintDistance)
1140                     .setDuration(250)
1141                     .setInterpolator(Interpolators.FAST_OUT_SLOW_IN)
1142                     .withEndAction(() -> v.animate()
1143                             .translationY(0)
1144                             .setDuration(450)
1145                             .setInterpolator(mBounceInterpolator)
1146                             .start())
1147                     .start();
1148         }
1149     }
1150 
setAnimator(ValueAnimator animator)1151     private void setAnimator(ValueAnimator animator) {
1152         mHeightAnimator = animator;
1153         if (animator == null && mPanelUpdateWhenAnimatorEnds) {
1154             mPanelUpdateWhenAnimatorEnds = false;
1155             requestPanelHeightUpdate();
1156         }
1157     }
1158 
1159     /**
1160      * Phase 2: Bounce down.
1161      */
startUnlockHintAnimationPhase2(final Runnable onAnimationFinished)1162     private void startUnlockHintAnimationPhase2(final Runnable onAnimationFinished) {
1163         ValueAnimator animator = createHeightAnimator(getMaxPanelHeight());
1164         animator.setDuration(450);
1165         animator.setInterpolator(mBounceInterpolator);
1166         animator.addListener(new AnimatorListenerAdapter() {
1167             @Override
1168             public void onAnimationEnd(Animator animation) {
1169                 setAnimator(null);
1170                 onAnimationFinished.run();
1171                 notifyBarPanelExpansionChanged();
1172             }
1173         });
1174         animator.start();
1175         setAnimator(animator);
1176     }
1177 
createHeightAnimator(float targetHeight)1178     private ValueAnimator createHeightAnimator(float targetHeight) {
1179         ValueAnimator animator = ValueAnimator.ofFloat(mExpandedHeight, targetHeight);
1180         animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
1181             @Override
1182             public void onAnimationUpdate(ValueAnimator animation) {
1183                 setExpandedHeightInternal((Float) animation.getAnimatedValue());
1184             }
1185         });
1186         return animator;
1187     }
1188 
notifyBarPanelExpansionChanged()1189     protected void notifyBarPanelExpansionChanged() {
1190         mBar.panelExpansionChanged(mExpandedFraction, mExpandedFraction > 0f
1191                 || mPeekAnimator != null || mInstantExpanding || isPanelVisibleBecauseOfHeadsUp()
1192                 || mTracking || mHeightAnimator != null);
1193         if (mExpansionListener != null) {
1194             mExpansionListener.accept(mExpandedFraction, mTracking);
1195         }
1196     }
1197 
setExpansionListener(BiConsumer<Float, Boolean> consumer)1198     public void setExpansionListener(BiConsumer<Float, Boolean> consumer) {
1199         mExpansionListener = consumer;
1200     }
1201 
isPanelVisibleBecauseOfHeadsUp()1202     protected abstract boolean isPanelVisibleBecauseOfHeadsUp();
1203 
1204     /**
1205      * Gets called when the user performs a click anywhere in the empty area of the panel.
1206      *
1207      * @return whether the panel will be expanded after the action performed by this method
1208      */
onEmptySpaceClick(float x)1209     protected boolean onEmptySpaceClick(float x) {
1210         if (mHintAnimationRunning) {
1211             return true;
1212         }
1213         return onMiddleClicked();
1214     }
1215 
1216     protected final Runnable mPostCollapseRunnable = new Runnable() {
1217         @Override
1218         public void run() {
1219             collapse(false /* delayed */, 1.0f /* speedUpFactor */);
1220         }
1221     };
1222 
onMiddleClicked()1223     protected abstract boolean onMiddleClicked();
1224 
isDozing()1225     protected abstract boolean isDozing();
1226 
dump(FileDescriptor fd, PrintWriter pw, String[] args)1227     public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
1228         pw.println(String.format("[PanelView(%s): expandedHeight=%f maxPanelHeight=%d closing=%s"
1229                 + " tracking=%s justPeeked=%s peekAnim=%s%s timeAnim=%s%s touchDisabled=%s"
1230                 + "]",
1231                 this.getClass().getSimpleName(),
1232                 getExpandedHeight(),
1233                 getMaxPanelHeight(),
1234                 mClosing?"T":"f",
1235                 mTracking?"T":"f",
1236                 mJustPeeked?"T":"f",
1237                 mPeekAnimator, ((mPeekAnimator!=null && mPeekAnimator.isStarted())?" (started)":""),
1238                 mHeightAnimator, ((mHeightAnimator !=null && mHeightAnimator.isStarted())?" (started)":""),
1239                 mTouchDisabled?"T":"f"
1240         ));
1241     }
1242 
resetViews()1243     public abstract void resetViews();
1244 
getPeekHeight()1245     protected abstract float getPeekHeight();
1246     /**
1247      * @return whether "Clear all" button will be visible when the panel is fully expanded
1248      */
fullyExpandedClearAllVisible()1249     protected abstract boolean fullyExpandedClearAllVisible();
1250 
isClearAllVisible()1251     protected abstract boolean isClearAllVisible();
1252 
1253     /**
1254      * @return the height of the clear all button, in pixels
1255      */
getClearAllHeight()1256     protected abstract int getClearAllHeight();
1257 
setHeadsUpManager(HeadsUpManagerPhone headsUpManager)1258     public void setHeadsUpManager(HeadsUpManagerPhone headsUpManager) {
1259         mHeadsUpManager = headsUpManager;
1260     }
1261 
setLaunchingNotification(boolean launchingNotification)1262     public void setLaunchingNotification(boolean launchingNotification) {
1263         mLaunchingNotification = launchingNotification;
1264     }
1265 
collapseWithDuration(int animationDuration)1266     public void collapseWithDuration(int animationDuration) {
1267         mFixedDuration = animationDuration;
1268         collapse(false /* delayed */, 1.0f /* speedUpFactor */);
1269         mFixedDuration = NO_FIXED_DURATION;
1270     }
1271 }
1272