Always have QS expanded on split shade

Test: pull down qs from launcher, lock screen, from regular or split
      shade modes.
Test: repeat tests pulling down with 2 fingers
Fixes: 204450723
Change-Id: Ifea32b10378ed4cc240ea1a95bea12db515479bf

packages/SystemUI/src/com/android/systemui/qs/PagedTileLayout.java

@@ -112,6 +112,15 @@ public class PagedTileLayout extends ViewPager implements QSTileLayout {
         mPageToRestore = savedInstanceState.getInt(CURRENT_PAGE, -1);
     }
 
+    @Override
+    public int getTilesHeight() {
+        TileLayout tileLayout = mPages.get(getCurrentItem());
+        if (tileLayout == null) {
+            return 0;
+        }
+        return tileLayout.getTilesHeight();
+    }
+
     @Override
     protected void onConfigurationChanged(Configuration newConfig) {
         super.onConfigurationChanged(newConfig);

packages/SystemUI/src/com/android/systemui/qs/QSFragment.java

@@ -377,23 +377,24 @@ public class QSFragment extends LifecycleFragment implements QS, CommandQueue.Ca
     }
 
     private void updateQsState() {
-        final boolean expandVisually = mQsExpanded || mStackScrollerOverscrolling
+        final boolean expanded = mQsExpanded || mInSplitShade;
+        final boolean expandVisually = expanded || mStackScrollerOverscrolling
                 || mHeaderAnimating;
-        mQSPanelController.setExpanded(mQsExpanded);
-        mQSDetail.setExpanded(mQsExpanded);
+        mQSPanelController.setExpanded(expanded);
+        mQSDetail.setExpanded(expanded);
         boolean keyguardShowing = isKeyguardState();
-        mHeader.setVisibility((mQsExpanded || !keyguardShowing || mHeaderAnimating
+        mHeader.setVisibility((expanded || !keyguardShowing || mHeaderAnimating
                 || mShowCollapsedOnKeyguard)
                 ? View.VISIBLE
                 : View.INVISIBLE);
         mHeader.setExpanded((keyguardShowing && !mHeaderAnimating && !mShowCollapsedOnKeyguard)
-                || (mQsExpanded && !mStackScrollerOverscrolling), mQuickQSPanelController);
-        mFooter.setVisibility(!mQsDisabled && (mQsExpanded || !keyguardShowing || mHeaderAnimating
+                || (expanded && !mStackScrollerOverscrolling), mQuickQSPanelController);
+        mFooter.setVisibility(!mQsDisabled && (expanded || !keyguardShowing || mHeaderAnimating
                 || mShowCollapsedOnKeyguard)
                 ? View.VISIBLE
                 : View.INVISIBLE);
         mFooter.setExpanded((keyguardShowing && !mHeaderAnimating && !mShowCollapsedOnKeyguard)
-                || (mQsExpanded && !mStackScrollerOverscrolling));
+                || (expanded && !mStackScrollerOverscrolling));
         mQSPanelController.setVisibility(
                 !mQsDisabled && expandVisually ? View.VISIBLE : View.INVISIBLE);
     }
@@ -405,7 +406,8 @@ public class QSFragment extends LifecycleFragment implements QS, CommandQueue.Ca
     }
 
     private void updateShowCollapsedOnKeyguard() {
-        boolean showCollapsed = mBypassController.getBypassEnabled() || mTransitioningToFullShade;
+        boolean showCollapsed = mBypassController.getBypassEnabled()
+                || (mTransitioningToFullShade && !mInSplitShade);
         if (showCollapsed != mShowCollapsedOnKeyguard) {
             mShowCollapsedOnKeyguard = showCollapsed;
             updateQsState();
@@ -485,6 +487,8 @@ public class QSFragment extends LifecycleFragment implements QS, CommandQueue.Ca
     public void setInSplitShade(boolean inSplitShade) {
         mInSplitShade = inSplitShade;
         mQSAnimator.setTranslateWhileExpanding(inSplitShade);
+        updateShowCollapsedOnKeyguard();
+        updateQsState();
     }
 
     @Override
@@ -503,7 +507,8 @@ public class QSFragment extends LifecycleFragment implements QS, CommandQueue.Ca
     public void setQsExpansion(float expansion, float panelExpansionFraction,
             float proposedTranslation, float squishinessFraction) {
         float headerTranslation = mTransitioningToFullShade ? 0 : proposedTranslation;
-        float progress = mTransitioningToFullShade ? mFullShadeProgress : panelExpansionFraction;
+        float progress = mTransitioningToFullShade || mState == StatusBarState.KEYGUARD
+                ? mFullShadeProgress : panelExpansionFraction;
         setAlphaAnimationProgress(mInSplitShade ? progress : 1);
         mContainer.setExpansion(expansion);
         final float translationScaleY = (mInSplitShade

packages/SystemUI/src/com/android/systemui/qs/QSPanel.java

@@ -258,13 +258,8 @@ public class QSPanel extends LinearLayout implements Tunable {
     }
 
     private void updateViewPositions() {
-        if (!(mTileLayout instanceof TileLayout)) {
-            return;
-        }
-        TileLayout layout = (TileLayout) mTileLayout;
-
         // Adjust view positions based on tile squishing
-        int tileHeightOffset = layout.getTilesHeight() - layout.getHeight();
+        int tileHeightOffset = mTileLayout.getTilesHeight() - mTileLayout.getHeight();
 
         boolean move = false;
         for (int i = 0; i < getChildCount(); i++) {
@@ -787,6 +782,12 @@ public class QSPanel extends LinearLayout implements Tunable {
         /** */
         void setListening(boolean listening, UiEventLogger uiEventLogger);
 
+        /** */
+        int getHeight();
+
+        /** */
+        int getTilesHeight();
+
         /**
          * Sets a size modifier for the tile. Where 0 means collapsed, and 1 expanded.
          */

packages/SystemUI/src/com/android/systemui/qs/TileLayout.java

@@ -275,6 +275,7 @@ public class TileLayout extends ViewGroup implements QSTileLayout {
         return Math.max(mColumns * mRows, 1);
     }
 
+    @Override
     public int getTilesHeight() {
         return mLastTileBottom + getPaddingBottom();
     }

packages/SystemUI/src/com/android/systemui/statusbar/LockscreenShadeTransitionController.kt

@@ -174,7 +174,7 @@ class LockscreenShadeTransitionController @Inject constructor(
     internal fun canDragDown(): Boolean {
         return (statusBarStateController.state == StatusBarState.KEYGUARD ||
                 nsslController.isInLockedDownShade()) &&
-                qS.isFullyCollapsed
+                (qS.isFullyCollapsed || useSplitShade)
     }
 
     /**
@@ -285,7 +285,7 @@ class LockscreenShadeTransitionController @Inject constructor(
     internal val isDragDownAnywhereEnabled: Boolean
         get() = (statusBarStateController.getState() == StatusBarState.KEYGUARD &&
                 !keyguardBypassController.bypassEnabled &&
-                qS.isFullyCollapsed)
+                (qS.isFullyCollapsed || useSplitShade))
 
     /**
      * The amount in pixels that the user has dragged down.

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

@@ -2390,11 +2390,14 @@ public class NotificationPanelViewController extends PanelViewController {
 
     private void updateQsExpansion() {
         if (mQs == null) return;
-        float qsExpansionFraction = computeQsExpansionFraction();
-        float squishiness = mNotificationStackScrollLayoutController
-                .getNotificationSquishinessFraction();
-        mQs.setQsExpansion(qsExpansionFraction, getExpandedFraction(), getHeaderTranslation(),
-                mQsExpandImmediate || mQsExpanded ? 1f : squishiness);
+        final float squishiness =
+                mQsExpandImmediate || mQsExpanded ? 1f : mNotificationStackScrollLayoutController
+                        .getNotificationSquishinessFraction();
+        final float qsExpansionFraction = computeQsExpansionFraction();
+        final float adjustedExpansionFraction = mShouldUseSplitNotificationShade
+                ? 1f : computeQsExpansionFraction();
+        mQs.setQsExpansion(adjustedExpansionFraction, getExpandedFraction(), getHeaderTranslation(),
+                squishiness);
         mSplitShadeHeaderController.setQsExpandedFraction(qsExpansionFraction);
         mMediaHierarchyManager.setQsExpansion(qsExpansionFraction);
         int qsPanelBottomY = calculateQsBottomPosition(qsExpansionFraction);