add option to enable secure window mode

3 files changed, 13 insertions, 1 deletions

diff --git a/org.fox.ttrss/src/main/java/org/fox/ttrss/CommonActivity.java b/org.fox.ttrss/src/main/java/org/fox/ttrss/CommonActivity.java
index 29bb1390..12c74d2a 100755
--- a/org.fox.ttrss/src/main/java/org/fox/ttrss/CommonActivity.java
+++ b/org.fox.ttrss/src/main/java/org/fox/ttrss/CommonActivity.java
@@ -24,6 +24,7 @@ import android.util.DisplayMetrics;
 import android.util.Log;
 import android.view.Display;
 import android.view.View;
+import android.view.WindowManager;
 import android.widget.CheckBox;
 
 import androidx.activity.EdgeToEdge;
@@ -236,6 +237,9 @@ public class CommonActivity extends AppCompatActivity implements SharedPreferenc
 
 		m_prefs.registerOnSharedPreferenceChangeListener(this);
 
+		if (m_prefs.getBoolean("window_secure_mode", false))
+			getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE);
+
 		setupWidgetUpdates(this);
 
         if (savedInstanceState == null) {
@@ -314,7 +318,7 @@ public class CommonActivity extends AppCompatActivity implements SharedPreferenc
 
 		String[] filter = new String[] { "enable_cats", "widget_update_interval",
 				"headlines_swipe_to_dismiss", "headlines_mark_read_scroll", "headlines_request_size",
-				"force_phone_layout", "open_on_startup"};
+				"force_phone_layout", "open_on_startup", "window_secure_mode" };
 
 		m_needRestart = Arrays.asList(filter).contains(key);
 	}
diff --git a/org.fox.ttrss/src/main/res/values/strings.xml b/org.fox.ttrss/src/main/res/values/strings.xml
index 3b49d1ae..6f34b705 100755
--- a/org.fox.ttrss/src/main/res/values/strings.xml
+++ b/org.fox.ttrss/src/main/res/values/strings.xml
@@ -306,4 +306,6 @@
     <string name="error_success">Operation completed successfully</string>
     <string name="error_bad_request">Error: 400 bad request</string>
     <string name="headlines_set_display_mode">Set display mode</string>
+    <string name="window_secure_mode_summary">Disables screenshots and hides window contents on non-secure displays</string>
+    <string name="window_secure_mode">Secure window mode</string>
 </resources>
diff --git a/org.fox.ttrss/src/main/res/xml/preferences.xml b/org.fox.ttrss/src/main/res/xml/preferences.xml
index 33095c5f..9e1f6642 100755
--- a/org.fox.ttrss/src/main/res/xml/preferences.xml
+++ b/org.fox.ttrss/src/main/res/xml/preferences.xml
@@ -67,6 +67,12 @@
             android:key="force_phone_layout"
             android:summary="@string/force_phone_layout_summary"
             android:title="@string/force_phone_layout" />
+
+        <SwitchPreferenceCompat
+            android:defaultValue="false"
+            android:key="window_secure_mode"
+            android:summary="@string/window_secure_mode_summary"
+            android:title="@string/window_secure_mode" />
     </PreferenceCategory>
 
     <PreferenceCategory