[Flexiglass] Draw NSSL debug lines for positions driven by placeholders

Bug: 332574413
Test: turn on debug lines, see where they're drawn
Flag: com.android.systemui.scene_container
Change-Id: I31840268ffe5b1f36703d238b45013eb00857f9a

1 files changed, 17 insertions, 0 deletions

diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
index fe22cc628b5f..2c34d4e691df 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
@@ -833,6 +833,23 @@ public class NotificationStackScrollLayout
         int y = 0;
         drawDebugInfo(canvas, y, Color.RED, /* label= */ "y = " + y);
 
+        if (SceneContainerFlag.isEnabled()) {
+            y = (int) mScrollViewFields.getStackTop();
+            drawDebugInfo(canvas, y, Color.RED, /* label= */ "getStackTop() = " + y);
+
+            y = (int) mScrollViewFields.getStackBottom();
+            drawDebugInfo(canvas, y, Color.MAGENTA, /* label= */ "getStackBottom() = " + y);
+
+            y = (int) mScrollViewFields.getHeadsUpTop();
+            drawDebugInfo(canvas, y, Color.GREEN, /* label= */ "getHeadsUpTop() = " + y);
+
+            y += getTopHeadsUpHeight();
+            drawDebugInfo(canvas, y, Color.BLUE,
+                    /* label= */ "getHeadsUpTop() + getTopHeadsUpHeight() = " + y);
+
+            return; // the rest of the fields are not important in Flexiglass
+        }
+
         y = getTopPadding();
         drawDebugInfo(canvas, y, Color.RED, /* label= */ "getTopPadding() = " + y);