commit 42d2d42142a09d5ac98352c1bf4ccbd7b08dc029
author Chalard Jean <jchalard@google.com> Mon May 20 13:11:37 2019 +0900
committer android-build-team Robot <android-build-team-robot@google.com> Tue Jun 11 21:04:41 2019 +0000
tree a4a55a760b91129f48b63e6366011e52e54f0537
parent d446743de4fd86e0e1e2de6eb56725daf00f7748

[RESTRICT AUTOMERGE] Protect VPN dialogs against overlay.

Bug: 130568701
Test: manual. After this, can't display on top of it
Change-Id: Ib032f800edb0416cc15f01a34954340d0d0ffa78
(cherry picked from commit 4e80dc2861614d25a1f957f50040a8cf04812d11)
(cherry picked from commit 27d47340496580d66f36a734a115e47eaf550972)

packages/VpnDialogs/AndroidManifest.xml

diff --git a/packages/VpnDialogs/AndroidManifest.xml b/packages/VpnDialogs/AndroidManifest.xml
index 8172e71..05ce96c 100644
--- a/packages/VpnDialogs/AndroidManifest.xml
+++ b/packages/VpnDialogs/AndroidManifest.xml
@@ -21,6 +21,7 @@
 
     <uses-permission android:name="android.permission.CONTROL_VPN" />
     <uses-permission android:name="android.permission.CONNECTIVITY_INTERNAL" />
+    <uses-permission android:name="android.permission.HIDE_NON_SYSTEM_OVERLAY_WINDOWS"/>
 
     <application android:label="VpnDialogs"
                  android:allowBackup="false">

packages/VpnDialogs/src/com/android/vpndialogs/AlwaysOnDisconnectedDialog.java

diff --git a/packages/VpnDialogs/src/com/android/vpndialogs/AlwaysOnDisconnectedDialog.java b/packages/VpnDialogs/src/com/android/vpndialogs/AlwaysOnDisconnectedDialog.java
index 846fcf8..ba4baf3 100644
--- a/packages/VpnDialogs/src/com/android/vpndialogs/AlwaysOnDisconnectedDialog.java
+++ b/packages/VpnDialogs/src/com/android/vpndialogs/AlwaysOnDisconnectedDialog.java
@@ -16,6 +16,10 @@
 
 package com.android.vpndialogs;
 
+import static android.view.WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM;
+import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS;
+import static android.view.WindowManager.LayoutParams.TYPE_SYSTEM_ALERT;
+
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
@@ -31,7 +35,6 @@
 import android.text.style.ClickableSpan;
 import android.util.Log;
 import android.view.View;
-import android.view.WindowManager;
 import android.widget.TextView;
 
 import com.android.internal.app.AlertActivity;
@@ -74,8 +77,9 @@
         setupAlert();
 
         getWindow().setCloseOnTouchOutside(false);
-        getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
-        getWindow().addFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
+        getWindow().setType(TYPE_SYSTEM_ALERT);
+        getWindow().addFlags(FLAG_ALT_FOCUSABLE_IM);
+        getWindow().addPrivateFlags(PRIVATE_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS);
     }
 
     @Override

packages/VpnDialogs/src/com/android/vpndialogs/ConfirmDialog.java

diff --git a/packages/VpnDialogs/src/com/android/vpndialogs/ConfirmDialog.java b/packages/VpnDialogs/src/com/android/vpndialogs/ConfirmDialog.java
index 72ce9c4..0933974 100644
--- a/packages/VpnDialogs/src/com/android/vpndialogs/ConfirmDialog.java
+++ b/packages/VpnDialogs/src/com/android/vpndialogs/ConfirmDialog.java
@@ -16,6 +16,8 @@
 
 package com.android.vpndialogs;
 
+import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS;
+
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.pm.PackageManager;
@@ -78,6 +80,7 @@
         setupAlert();
 
         getWindow().setCloseOnTouchOutside(false);
+        getWindow().addPrivateFlags(PRIVATE_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS);
         Button button = mAlert.getButton(DialogInterface.BUTTON_POSITIVE);
         button.setFilterTouchesWhenObscured(true);
     }