Add getAccessibilityWindowId system process API

- Add an API to get accessibility window id from window token. This API
  can be called only from a system process.

Bug: 119794051
Test: None
Change-Id: I37db50209efeb81f3e3502d84fd53fedec695f99

2 files changed, 33 insertions, 0 deletions

diff --git a/core/java/android/view/accessibility/AccessibilityManager.java b/core/java/android/view/accessibility/AccessibilityManager.java
index 88b9c8096fe1..c5c1bcae232a 100644
--- a/core/java/android/view/accessibility/AccessibilityManager.java
+++ b/core/java/android/view/accessibility/AccessibilityManager.java
@@ -1004,6 +1004,36 @@ public final class AccessibilityManager {
     }
 
     /**
+     * Returns accessibility window id from window token. Accessibility window id is the one
+     * returned from AccessibilityWindowInfo.getId(). Only available for the system process.
+     *
+     * @param windowToken Window token to find accessibility window id.
+     * @return Accessibility window id for the window token.
+     *   AccessibilityWindowInfo.UNDEFINED_WINDOW_ID if accessibility window id not available for
+     *   the token.
+     * @hide
+     */
+    @SystemApi
+    public int getAccessibilityWindowId(IBinder windowToken) {
+        if (windowToken == null) {
+            return AccessibilityWindowInfo.UNDEFINED_WINDOW_ID;
+        }
+
+        final IAccessibilityManager service;
+        synchronized (mLock) {
+            service = getServiceLocked();
+            if (service == null) {
+                return AccessibilityWindowInfo.UNDEFINED_WINDOW_ID;
+            }
+        }
+        try {
+            return service.getAccessibilityWindowId(windowToken);
+        } catch (RemoteException e) {
+            return AccessibilityWindowInfo.UNDEFINED_WINDOW_ID;
+        }
+    }
+
+    /**
      * Sets the current state and notifies listeners, if necessary.
      *
      * @param stateFlags The state flags.
diff --git a/core/java/android/view/accessibility/IAccessibilityManager.aidl b/core/java/android/view/accessibility/IAccessibilityManager.aidl
index 2767a82e5dba..38dac94340bb 100644
--- a/core/java/android/view/accessibility/IAccessibilityManager.aidl
+++ b/core/java/android/view/accessibility/IAccessibilityManager.aidl
@@ -76,5 +76,8 @@ interface IAccessibilityManager {
     // System process only
     boolean sendFingerprintGesture(int gestureKeyCode);
 
+    // System process only
+    int getAccessibilityWindowId(IBinder windowToken);
+
     long getRecommendedTimeoutMillis();
 }