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Commit c86878d1 authored by Michal Brzezinski's avatar Michal Brzezinski
Browse files

First part of Fixing heads-up notification motion in split shade 

This change makes dragging down HUN much better, without all shade breaking during the motion. Also when swiping up HUN now scrims (or other shade elements) are not showing up.

Changes:
- Refactoring logic for calculating transition distance in getMaxPanelHeight to getMaxPanelTransitionDistance and substituting it where appropriate. The most important part is setExpandedHeight which uses that value to calculate expansion fraction. With usual splitShadeTransitionDistance that fraction for HUN would over 1 and almost everything is visible immediately when starting to drag HUN up or down. That’s why when HUN is visible we want to ensure transition distance is bigger and dragging starts at around 0.4 of expansion when no elements are visible.

- HeadsUpTouchHelper was calculating panel scrim min fraction using maxPanelHeight which for split shade returned distance smaller than starting height and panel scrim min fraction was over 1. The fix is to move panel scrim min calculation to NPVC and make it dependent on scrimTransitionDistance. It must be different from getMaxPanelTransitionDistance because scrim expansion fraction is calculated based on scrimTransitionDistance in ScrimShadeTransitionController and resulting fraction would be bigger than minScrimFraction

There are still several bugs with HUN but it’s already looking better now and I’ll file separate bugs for other issues.

Test: NotificationPanelViewControllerTest
Test: swipe up HUN and observer shade elements stay invisible
Fixes: 232349737
Fixes: 234940017
Change-Id: Ie36a9fe8627f0f49168d30db1931aac723e15929
parent 9fefe95b

packages/SystemUI/src/com/android/systemui/shade/NotificationPanelViewController.java

+65 −18
Original line number Diff line number Diff line
@@ -449,6 +449,8 @@ public final class NotificationPanelViewController extends PanelViewController { 
    private boolean mQsTouchAboveFalsingThreshold;

    private int mQsFalsingThreshold;



    /** Indicates drag starting height when swiping down or up on heads-up notifications */

    private int mHeadsUpStartHeight;

    private HeadsUpTouchHelper mHeadsUpTouchHelper;

    private boolean mListenForHeadsUp;

    private int mNavigationBarBottomHeight;
@@ -651,6 +653,8 @@ public final class NotificationPanelViewController extends PanelViewController { 


    /** The drag distance required to fully expand the split shade. */

    private int mSplitShadeFullTransitionDistance;

    /** The drag distance required to fully transition scrims. */

    private int mSplitShadeScrimTransitionDistance;



    private final NotificationListContainer mNotificationListContainer;

    private final NotificationStackSizeCalculator mNotificationStackSizeCalculator;
@@ -1064,6 +1068,8 @@ public final class NotificationPanelViewController extends PanelViewController { 
        mLockscreenNotificationQSPadding = mResources.getDimensionPixelSize(

                R.dimen.notification_side_paddings);

        mUdfpsMaxYBurnInOffset = mResources.getDimensionPixelSize(R.dimen.udfps_burn_in_offset_y);

        mSplitShadeScrimTransitionDistance = mResources.getDimensionPixelSize(

                R.dimen.split_shade_scrim_transition_distance);

    }



    private void updateViewControllers(KeyguardStatusView keyguardStatusView,
@@ -1354,7 +1360,7 @@ public final class NotificationPanelViewController extends PanelViewController { 
        mQsSizeChangeAnimator.setInterpolator(Interpolators.FAST_OUT_SLOW_IN);

        mQsSizeChangeAnimator.addUpdateListener(animation -> {

            requestScrollerTopPaddingUpdate(false /* animate */);

            requestPanelHeightUpdate();

            updateExpandedHeightToMaxHeight();

            int height = (int) mQsSizeChangeAnimator.getAnimatedValue();

            mQs.setHeightOverride(height);

        });
@@ -2134,7 +2140,7 @@ public final class NotificationPanelViewController extends PanelViewController { 
            mMetricsLogger.count(COUNTER_PANEL_OPEN_QS, 1);

            setQsExpandImmediate(true);

            setShowShelfOnly(true);

            requestPanelHeightUpdate();

            updateExpandedHeightToMaxHeight();



            // Normally, we start listening when the panel is expanded, but here we need to start

            // earlier so the state is already up to date when dragging down.
@@ -2346,7 +2352,7 @@ public final class NotificationPanelViewController extends PanelViewController { 
        // Reset scroll position and apply that position to the expanded height.

        float height = mQsExpansionHeight;

        setQsExpansion(height);

        requestPanelHeightUpdate();

        updateExpandedHeightToMaxHeight();

        mNotificationStackScrollLayoutController.checkSnoozeLeavebehind();



        // When expanding QS, let's authenticate the user if possible,
@@ -2362,7 +2368,7 @@ public final class NotificationPanelViewController extends PanelViewController { 
        if (changed) {

            mQsExpanded = expanded;

            updateQsState();

            requestPanelHeightUpdate();

            updateExpandedHeightToMaxHeight();

            mFalsingCollector.setQsExpanded(expanded);

            mCentralSurfaces.setQsExpanded(expanded);

            mNotificationsQSContainerController.setQsExpanded(expanded);
@@ -3086,16 +3092,7 @@ public final class NotificationPanelViewController extends PanelViewController { 
        int maxHeight;

        if (mQsExpandImmediate || mQsExpanded || mIsExpanding && mQsExpandedWhenExpandingStarted

                || mPulsing || mSplitShadeEnabled) {

            if (mSplitShadeEnabled && mBarState == SHADE) {

                // Max panel height is used to calculate the fraction of the shade expansion.

                // Traditionally the value is based on the number of notifications.

                // On split-shade, we want the required distance to be a specific and constant

                // value, to make sure the expansion motion has the expected speed.

                // We also only want this on non-lockscreen for now.

                maxHeight = mSplitShadeFullTransitionDistance;

            } else {

            maxHeight = calculatePanelHeightQsExpanded();

            }

        } else {

            maxHeight = calculatePanelHeightShade();

        }
@@ -3454,6 +3451,31 @@ public final class NotificationPanelViewController extends PanelViewController { 
                || !isTracking());

    }



    @Override

    public int getMaxPanelTransitionDistance() {

        // Traditionally the value is based on the number of notifications. On split-shade, we want

        // the required distance to be a specific and constant value, to make sure the expansion

        // motion has the expected speed. We also only want this on non-lockscreen for now.

        if (mSplitShadeEnabled && mBarState == SHADE) {

            boolean transitionFromHeadsUp =

                    mHeadsUpManager.isTrackingHeadsUp() || mExpandingFromHeadsUp;

            // heads-up starting height is too close to mSplitShadeFullTransitionDistance and

            // when dragging HUN transition is already 90% complete. It makes shade become

            // immediately visible when starting to drag. We want to set distance so that

            // nothing is immediately visible when dragging (important for HUN swipe up motion) -

            // 0.4 expansion fraction is a good starting point.

            if (transitionFromHeadsUp) {

                double maxDistance = Math.max(mSplitShadeFullTransitionDistance,

                        mHeadsUpStartHeight * 2.5);

                return (int) Math.min(getMaxPanelHeight(), maxDistance);

            } else {

                return mSplitShadeFullTransitionDistance;

            }

        } else {

            return getMaxPanelHeight();

        }

    }



    @Override

    protected boolean isTrackingBlocked() {

        return mConflictingQsExpansionGesture && mQsExpanded || mBlockingExpansionForCurrentTouch;
@@ -3653,11 +3675,36 @@ public final class NotificationPanelViewController extends PanelViewController { 
        return mBarState == KEYGUARD;

    }



    /**

     * Called when heads-up notification is being dragged up or down to indicate what's the starting

     * height for shade motion

     */

    public void setHeadsUpDraggingStartingHeight(int startHeight) {

        mHeadsUpStartHeight = startHeight;

        float scrimMinFraction;

        if (mSplitShadeEnabled) {

            boolean highHun = mHeadsUpStartHeight * 2.5 > mSplitShadeScrimTransitionDistance;

            // if HUN height is higher than 40% of predefined transition distance, it means HUN

            // is too high for regular transition. In that case we need to calculate transition

            // distance - here we take scrim transition distance as equal to shade transition

            // distance. It doesn't result in perfect motion - usually scrim transition distance

            // should be longer - but it's good enough for HUN case.

            float transitionDistance =

                    highHun ? getMaxPanelTransitionDistance() : mSplitShadeFullTransitionDistance;

            scrimMinFraction = mHeadsUpStartHeight / transitionDistance;

        } else {

            int transitionDistance = getMaxPanelHeight();

            scrimMinFraction = transitionDistance > 0f

                    ? (float) mHeadsUpStartHeight / transitionDistance : 0f;

        }

        setPanelScrimMinFraction(scrimMinFraction);

    }



    /**

     * Sets the minimum fraction for the panel expansion offset. This may be non-zero in certain

     * cases, such as if there's a heads-up notification.

     */

    public void setPanelScrimMinFraction(float minFraction) {

    private void setPanelScrimMinFraction(float minFraction) {

        mMinFraction = minFraction;

        mDepthController.setPanelPullDownMinFraction(mMinFraction);

        mScrimController.setPanelScrimMinFraction(mMinFraction);
@@ -4391,7 +4438,7 @@ public final class NotificationPanelViewController extends PanelViewController { 
            if (mKeyguardShowing) {

                updateMaxDisplayedNotifications(true);

            }

            requestPanelHeightUpdate();

            updateExpandedHeightToMaxHeight();

        }



        @Override
@@ -4524,7 +4571,7 @@ public final class NotificationPanelViewController extends PanelViewController { 
            if (mQsExpanded && mQsFullyExpanded) {

                mQsExpansionHeight = mQsMaxExpansionHeight;

                requestScrollerTopPaddingUpdate(false /* animate */);

                requestPanelHeightUpdate();

                updateExpandedHeightToMaxHeight();

            }

            if (mAccessibilityManager.isEnabled()) {

                mView.setAccessibilityPaneTitle(determineAccessibilityPaneTitle());
@@ -4794,7 +4841,7 @@ public final class NotificationPanelViewController extends PanelViewController { 
            if (mQsExpanded && mQsFullyExpanded) {

                mQsExpansionHeight = mQsMaxExpansionHeight;

                requestScrollerTopPaddingUpdate(false /* animate */);

                requestPanelHeightUpdate();

                updateExpandedHeightToMaxHeight();



                // Size has changed, start an animation.

                if (mQsMaxExpansionHeight != oldMaxHeight) {

packages/SystemUI/src/com/android/systemui/shade/PanelViewController.java

+14 −10
Original line number Diff line number Diff line
@@ -248,7 +248,7 @@ public abstract class PanelViewController { 
        keyguardStateController.addCallback(new KeyguardStateController.Callback() {

            @Override

            public void onKeyguardFadingAwayChanged() {

                requestPanelHeightUpdate();

                updateExpandedHeightToMaxHeight();

            }

        });

        mAmbientState = ambientState;
@@ -730,7 +730,7 @@ public abstract class PanelViewController { 
        setExpandedHeightInternal(height);

    }



    protected void requestPanelHeightUpdate() {

    void updateExpandedHeightToMaxHeight() {

        float currentMaxPanelHeight = getMaxPanelHeight();



        if (isFullyCollapsed()) {
@@ -753,6 +753,13 @@ public abstract class PanelViewController { 
        setExpandedHeight(currentMaxPanelHeight);

    }



    /**

     * Returns drag down distance after which panel should be fully expanded. Usually it's the

     * same as max panel height but for large screen devices (especially split shade) we might

     * want to return different value to shorten drag distance

     */

    public abstract int getMaxPanelTransitionDistance();



    public void setExpandedHeightInternal(float h) {

        if (isNaN(h)) {

            Log.wtf(TAG, "ExpandedHeight set to NaN");
@@ -763,18 +770,15 @@ public abstract class PanelViewController { 
                        () -> mLatencyTracker.onActionEnd(LatencyTracker.ACTION_EXPAND_PANEL));

                mExpandLatencyTracking = false;

            }

            float maxPanelHeight = getMaxPanelHeight();

            float maxPanelHeight = getMaxPanelTransitionDistance();

            if (mHeightAnimator == null) {

                // Split shade has its own overscroll logic

                if (mTracking && !mInSplitShade) {

                    float overExpansionPixels = Math.max(0, h - maxPanelHeight);

                    setOverExpansionInternal(overExpansionPixels, true /* isFromGesture */);

                }

                mExpandedHeight = Math.min(h, maxPanelHeight);

            } else {

                mExpandedHeight = h;

            }



            mExpandedHeight = Math.min(h, maxPanelHeight);

            // If we are closing the panel and we are almost there due to a slow decelerating

            // interpolator, abort the animation.

            if (mExpandedHeight < 1f && mExpandedHeight != 0f && mClosing) {
@@ -832,7 +836,7 @@ public abstract class PanelViewController { 
    protected abstract int getMaxPanelHeight();



    public void setExpandedFraction(float frac) {

        setExpandedHeight(getMaxPanelHeight() * frac);

        setExpandedHeight(getMaxPanelTransitionDistance() * frac);

    }



    public float getExpandedHeight() {
@@ -1029,7 +1033,7 @@ public abstract class PanelViewController { 
        mHeightAnimator = animator;

        if (animator == null && mPanelUpdateWhenAnimatorEnds) {

            mPanelUpdateWhenAnimatorEnds = false;

            requestPanelHeightUpdate();

            updateExpandedHeightToMaxHeight();

        }

    }
@@ -1421,7 +1425,7 @@ public abstract class PanelViewController { 
        @Override

        public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft,

                int oldTop, int oldRight, int oldBottom) {

            requestPanelHeightUpdate();

            updateExpandedHeightToMaxHeight();

            mHasLayoutedSinceDown = true;

            if (mUpdateFlingOnLayout) {

                abortAnimations();

packages/SystemUI/src/com/android/systemui/shade/transition/ScrimShadeTransitionController.kt

+7 −1
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ import com.android.systemui.statusbar.phone.panelstate.PanelExpansionChangeEvent 
import com.android.systemui.statusbar.phone.panelstate.PanelState

import com.android.systemui.statusbar.phone.panelstate.STATE_OPENING

import com.android.systemui.statusbar.policy.ConfigurationController

import com.android.systemui.statusbar.policy.HeadsUpManager

import com.android.systemui.util.LargeScreenUtils

import java.io.PrintWriter

import javax.inject.Inject
@@ -28,6 +29,7 @@ constructor( 
    private val scrimController: ScrimController,

    @Main private val resources: Resources,

    private val statusBarStateController: SysuiStatusBarStateController,

    private val headsUpManager: HeadsUpManager

) {



    private var inSplitShade = false
@@ -84,7 +86,11 @@ constructor( 
    }



    private fun canUseCustomFraction(panelState: Int?) =

        inSplitShade && isScreenUnlocked() && panelState == STATE_OPENING

        inSplitShade && isScreenUnlocked() && panelState == STATE_OPENING &&

                // in case of HUN we can't always use predefined distances to manage scrim

                // transition because dragDownPxAmount can start from value bigger than

                // splitShadeScrimTransitionDistance

                !headsUpManager.isTrackingHeadsUp



    private fun isScreenUnlocked() =

        statusBarStateController.currentOrUpcomingState == StatusBarState.SHADE

packages/SystemUI/src/com/android/systemui/statusbar/phone/HeadsUpTouchHelper.java

+1 −3
Original line number Diff line number Diff line
@@ -115,9 +115,7 @@ public class HeadsUpTouchHelper implements Gefingerpoken { 
                    mInitialTouchY = y;

                    int startHeight = (int) (mPickedChild.getActualHeight()

                                                + mPickedChild.getTranslationY());

                    float maxPanelHeight = mPanel.getMaxPanelHeight();

                    mPanel.setPanelScrimMinFraction(maxPanelHeight > 0f

                            ? (float) startHeight / maxPanelHeight : 0f);

                    mPanel.setHeadsUpDraggingStartingHeight(startHeight);

                    mPanel.startExpandMotion(x, y, true /* startTracking */, startHeight);

                    // This call needs to be after the expansion start otherwise we will get a

                    // flicker of one frame as it's not expanded yet.

packages/SystemUI/src/com/android/systemui/statusbar/phone/panelstate/PanelExpansionStateManager.kt

+2 −2
Original line number Diff line number Diff line
@@ -115,7 +115,7 @@ class PanelExpansionStateManager @Inject constructor() { 
                    "f=$fraction " +

                    "expanded=$expanded " +

                    "tracking=$tracking " +

                    "drawDownPxAmount=$dragDownPxAmount " +

                    "dragDownPxAmount=$dragDownPxAmount " +

                    "${if (fullyOpened) " fullyOpened" else ""} " +

                    if (fullyClosed) " fullyClosed" else ""

        )