1 files changed, 24 insertions, 3 deletions

diff --git a/core/java/android/view/WindowInsets.java b/core/java/android/view/WindowInsets.java
index cdfcb43..f8cc793 100644
--- a/core/java/android/view/WindowInsets.java
+++ b/core/java/android/view/WindowInsets.java
@@ -33,6 +33,7 @@ public class WindowInsets {
     private Rect mSystemWindowInsets;
     private Rect mWindowDecorInsets;
     private Rect mTempRect;
+    private boolean mIsRound;
 
     private static final Rect EMPTY_RECT = new Rect(0, 0, 0, 0);
 
@@ -46,8 +47,14 @@ public class WindowInsets {
 
     /** @hide */
     public WindowInsets(Rect systemWindowInsets, Rect windowDecorInsets) {
+        this(systemWindowInsets, windowDecorInsets, false);
+    }
+
+    /** @hide */
+    public WindowInsets(Rect systemWindowInsets, Rect windowDecorInsets, boolean isRound) {
         mSystemWindowInsets = systemWindowInsets;
         mWindowDecorInsets = windowDecorInsets;
+        mIsRound = isRound;
     }
 
     /**
@@ -58,12 +65,12 @@ public class WindowInsets {
     public WindowInsets(WindowInsets src) {
         mSystemWindowInsets = src.mSystemWindowInsets;
         mWindowDecorInsets = src.mWindowDecorInsets;
+        mIsRound = src.mIsRound;
     }
 
     /** @hide */
     public WindowInsets(Rect systemWindowInsets) {
-        mSystemWindowInsets = systemWindowInsets;
-        mWindowDecorInsets = EMPTY_RECT;
+        this(systemWindowInsets, EMPTY_RECT);
     }
 
     /**
@@ -220,6 +227,20 @@ public class WindowInsets {
         return hasSystemWindowInsets() || hasWindowDecorInsets();
     }
 
+    /**
+     * Returns true if the associated window has a round shape.
+     *
+     * <p>A round window's left, top, right and bottom edges reach all the way to the
+     * associated edges of the window but the corners may not be visible. Views responding
+     * to round insets should take care to not lay out critical elements within the corners
+     * where they may not be accessible.</p>
+     *
+     * @return True if the window is round
+     */
+    public boolean isRound() {
+        return mIsRound;
+    }
+
     public WindowInsets cloneWithSystemWindowInsetsConsumed() {
         final WindowInsets result = new WindowInsets(this);
         result.mSystemWindowInsets = new Rect(0, 0, 0, 0);
@@ -273,6 +294,6 @@ public class WindowInsets {
     @Override
     public String toString() {
         return "WindowInsets{systemWindowInsets=" + mSystemWindowInsets + " windowDecorInsets=" +
-                mWindowDecorInsets + "}";
+                mWindowDecorInsets + (isRound() ? "round}" : "}");
     }
 }