From 526d66f6a91e0ed907db609a4adaa97f3239898b Mon Sep 17 00:00:00 2001
From: Traktores <144092020+Traktores@users.noreply.github.com>
Date: Thu, 14 Sep 2023 01:11:49 +0000
Subject: [PATCH] feat(TU Dortmund): Add `Show on lockscreen` patch (#472)

Co-authored-by: oSumAtrIX <johan.melkonyan1@web.de>
---
 .../lockscreen/ShowOnLockscreenPatch.java     | 46 +++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 app/src/main/java/app/revanced/tudortmund/lockscreen/ShowOnLockscreenPatch.java

diff --git a/app/src/main/java/app/revanced/tudortmund/lockscreen/ShowOnLockscreenPatch.java b/app/src/main/java/app/revanced/tudortmund/lockscreen/ShowOnLockscreenPatch.java
new file mode 100644
index 00000000..2260de24
--- /dev/null
+++ b/app/src/main/java/app/revanced/tudortmund/lockscreen/ShowOnLockscreenPatch.java
@@ -0,0 +1,46 @@
+package app.revanced.tudortmund.lockscreen;
+
+import android.content.Context;
+import android.hardware.display.DisplayManager;
+import android.os.Build;
+import android.view.Display;
+import android.view.Window;
+import androidx.appcompat.app.AppCompatActivity;
+
+import static android.view.WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD;
+import static android.view.WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED;
+
+public class ShowOnLockscreenPatch {
+    /**
+     * @noinspection deprecation
+     */
+    public static Window getWindow(AppCompatActivity activity, float brightness) {
+        Window window = activity.getWindow();
+
+        if (brightness >= 0) {
+            // High brightness set, therefore show on lockscreen.
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1) activity.setShowWhenLocked(true);
+            else window.addFlags(FLAG_SHOW_WHEN_LOCKED | FLAG_DISMISS_KEYGUARD);
+        } else {
+            // Ignore brightness reset when the screen is turned off.
+            DisplayManager displayManager = (DisplayManager) activity.getSystemService(Context.DISPLAY_SERVICE);
+
+            boolean isScreenOn = false;
+            for (Display display : displayManager.getDisplays()) {
+                if (display.getState() == Display.STATE_OFF) continue;
+
+                isScreenOn = true;
+                break;
+            }
+
+            if (isScreenOn) {
+                // Hide on lockscreen.
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1) activity.setShowWhenLocked(false);
+                else window.clearFlags(FLAG_SHOW_WHEN_LOCKED | FLAG_DISMISS_KEYGUARD);
+            }
+        }
+
+        return window;
+    }
+
+}