3 files changed, 25 insertions, 0 deletions
diff --git a/core/java/android/view/IWindowManager.aidl b/core/java/android/view/IWindowManager.aidl
index 54778007c6ff..b345b2e58252 100644
--- a/core/java/android/view/IWindowManager.aidl
+++ b/core/java/android/view/IWindowManager.aidl
@@ -816,4 +816,6 @@ interface IWindowManager
      * @param listener the listener to be unregistered
      */
     void unregisterCrossWindowBlurEnabledListener(ICrossWindowBlurEnabledListener listener);
+
+    void setForceCrossWindowBlurDisabled(boolean disable);
 }
diff --git a/core/java/android/view/WindowManager.java b/core/java/android/view/WindowManager.java
index 7338c7d9a581..818a2b04b5c0 100644
--- a/core/java/android/view/WindowManager.java
+++ b/core/java/android/view/WindowManager.java
@@ -873,6 +873,20 @@ public interface WindowManager extends ViewManager {
     default void removeCrossWindowBlurEnabledListener(@NonNull Consumer<Boolean> listener) {
     }
 
+    /**
+     * Disables cross-window blurs device-wide. This includes window blur behind
+     * (see {@link LayoutParams#setBlurBehindRadius}) and window background blur
+     * (see {@link Window#setBackgroundBlurRadius}).
+     *
+     * @param disable specifies whether to disable the blur. Note that calling this
+     *                with 'disable=false' will not enable blurs if there is something
+     *                else disabling blurs.
+     * @hide
+     */
+    @TestApi
+    default void setForceCrossWindowBlurDisabled(boolean disable) {
+    }
+
     public static class LayoutParams extends ViewGroup.LayoutParams implements Parcelable {
         /**
          * X position for this window.  With the default gravity it is ignored.
diff --git a/core/java/android/view/WindowManagerImpl.java b/core/java/android/view/WindowManagerImpl.java
index b39870738d68..e37522bc9986 100644
--- a/core/java/android/view/WindowManagerImpl.java
+++ b/core/java/android/view/WindowManagerImpl.java
@@ -317,4 +317,13 @@ public final class WindowManagerImpl implements WindowManager {
     public void removeCrossWindowBlurEnabledListener(@NonNull Consumer<Boolean> listener) {
         CrossWindowBlurListeners.getInstance().removeListener(listener);
     }
+
+    @Override
+    public void setForceCrossWindowBlurDisabled(boolean disable) {
+        try {
+            WindowManagerGlobal.getWindowManagerService()
+                .setForceCrossWindowBlurDisabled(disable);
+        } catch (RemoteException e) {
+        }
+    }
 }