Exclude the status bar and HUN from gestures

Bug: 133264268
Test: Ensure that HUNs and collapsed status bar prevents back
Change-Id: I5d326be8525ab959180c815f48c1275255a5a785

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

@@ -22,8 +22,6 @@ import android.content.Context;
 import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.graphics.Rect;
-import android.graphics.Region;
-import android.graphics.Region.Op;
 import android.util.Log;
 import android.util.Pools;
 import android.view.DisplayCutout;
@@ -78,6 +76,7 @@ public class HeadsUpManagerPhone extends HeadsUpManager implements Dumpable,
     private int[] mTmpTwoArray = new int[2];
     private boolean mHeadsUpGoingAway;
     private int mStatusBarState;
+    private Rect mTouchableRegion = new Rect();
 
     private AnimationStateHandler mAnimationStateHandler;
 
@@ -297,10 +296,13 @@ public class HeadsUpManagerPhone extends HeadsUpManager implements Dumpable,
     @Nullable
     public void updateTouchableRegion(ViewTreeObserver.InternalInsetsInfo info) {
         info.setTouchableInsets(ViewTreeObserver.InternalInsetsInfo.TOUCHABLE_INSETS_REGION);
+        info.touchableRegion.set(calculateTouchableRegion());
+    }
 
+    public Rect calculateTouchableRegion() {
         if (!hasPinnedHeadsUp()) {
-            info.touchableRegion.set(0, 0, mStatusBarWindowView.getWidth(), mStatusBarHeight);
-            updateRegionForNotch(info.touchableRegion);
+            mTouchableRegion.set(0, 0, mStatusBarWindowView.getWidth(), mStatusBarHeight);
+            updateRegionForNotch(mTouchableRegion);
         } else {
             NotificationEntry topEntry = getTopEntry();
             if (topEntry.isChildInGroup()) {
@@ -315,11 +317,12 @@ public class HeadsUpManagerPhone extends HeadsUpManager implements Dumpable,
             int minX = mTmpTwoArray[0];
             int maxX = mTmpTwoArray[0] + topRow.getWidth();
             int height = topRow.getIntrinsicHeight();
-            info.touchableRegion.set(minX, 0, maxX, mHeadsUpInset + height);
+            mTouchableRegion.set(minX, 0, maxX, mHeadsUpInset + height);
         }
+        return mTouchableRegion;
     }
 
-    private void updateRegionForNotch(Region region) {
+    private void updateRegionForNotch(Rect region) {
         DisplayCutout cutout = mStatusBarWindowView.getRootWindowInsets().getDisplayCutout();
         if (cutout == null) {
             return;
@@ -330,7 +333,7 @@ public class HeadsUpManagerPhone extends HeadsUpManager implements Dumpable,
         Rect bounds = new Rect();
         ScreenDecorations.DisplayCutoutView.boundsFromDirection(cutout, Gravity.TOP, bounds);
         bounds.offset(0, mDisplayCutoutTouchableRegionSize);
-        region.op(bounds, Op.UNION);
+        region.union(bounds);
     }
 
     @Override

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

@@ -100,6 +100,7 @@ import com.android.systemui.util.InjectionInflationController;
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 import java.util.function.Consumer;
 
@@ -141,6 +142,7 @@ public class NotificationPanelView extends PanelView implements
     private static final String COUNTER_PANEL_OPEN_PEEK = "panel_open_peek";
 
     private static final Rect mDummyDirtyRect = new Rect(0, 0, 1, 1);
+    private static final Rect mEmptyRect = new Rect();
 
     private static final AnimationProperties CLOCK_ANIMATION_PROPERTIES = new AnimationProperties()
             .setDuration(StackStateAnimator.ANIMATION_DURATION_STANDARD);
@@ -596,6 +598,25 @@ public class NotificationPanelView extends PanelView implements
             mQs.setHeightOverride(mQs.getDesiredHeight());
         }
         updateMaxHeadsUpTranslation();
+        updateGestureExclusionRect();
+    }
+
+    private void updateGestureExclusionRect() {
+        Rect exclusionRect = calculateGestureExclusionRect();
+        setSystemGestureExclusionRects(exclusionRect.isEmpty()
+                ? Collections.EMPTY_LIST
+                : Collections.singletonList(exclusionRect));
+    }
+
+    private Rect calculateGestureExclusionRect() {
+        Rect exclusionRect = null;
+        if (isFullyCollapsed()) {
+            // Note: The heads up manager also calculates the non-pinned touchable region
+            exclusionRect = mHeadsUpManager.calculateTouchableRegion();
+        }
+        return exclusionRect != null
+                ? exclusionRect
+                : mEmptyRect;
     }
 
     private void setIsFullWidth(boolean isFullWidth) {
@@ -1798,6 +1819,7 @@ public class NotificationPanelView extends PanelView implements
         updateHeader();
         updateNotificationTranslucency();
         updatePanelExpanded();
+        updateGestureExclusionRect();
         if (DEBUG) {
             invalidate();
         }
@@ -2568,6 +2590,7 @@ public class NotificationPanelView extends PanelView implements
             mNotificationStackScroller.runAfterAnimationFinished(
                     mHeadsUpExistenceChangedRunnable);
         }
+        updateGestureExclusionRect();
     }
 
     public void setHeadsUpAnimatingAway(boolean headsUpAnimatingAway) {
@@ -2992,6 +3015,7 @@ public class NotificationPanelView extends PanelView implements
     @Override
     public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
         super.dump(fd, pw, args);
+        pw.println("    gestureExclusionRect: " + calculateGestureExclusionRect());
         if (mKeyguardStatusBar != null) {
             mKeyguardStatusBar.dump(fd, pw, args);
         }