WM: Use task bounds for modal window touchable region

If the task is organized and the window is modal then use the parent
surface control to set the touchable region.

Bug: 168252846
Test: Dismiss dialog in splitscreen mode by tapping outside
Change-Id: I8fdd850a142022f979b12a66bb8ead32438123e3

1 files changed, 10 insertions, 0 deletions

diff --git a/core/java/android/view/WindowManager.java b/core/java/android/view/WindowManager.java
index 51cd95e42742..c25fde472431 100644
--- a/core/java/android/view/WindowManager.java
+++ b/core/java/android/view/WindowManager.java
@@ -4750,6 +4750,16 @@ public interface WindowManager extends ViewManager {
                     return Integer.toString(inputFeature);
             }
         }
+
+        /**
+         * True if the window should consume all pointer events itself, regardless of whether they
+         * are inside of the window. If the window is modal, its touchable region will expand to the
+         * size of its task.
+         * @hide
+         */
+        public boolean isModal() {
+            return (flags & (FLAG_NOT_TOUCH_MODAL | FLAG_NOT_FOCUSABLE)) == 0;
+        }
     }
 
     /**