From 0847485345d3d5031e45ce8ab4ef1e209d45e4df Mon Sep 17 00:00:00 2001
From: Laserlicht <13953785+Laserlicht@users.noreply.github.com>
Date: Mon, 1 Sep 2025 19:37:54 +0200
Subject: [PATCH] screensaver - ios support / android refactor

---
 .../java/eu/vcmi/vcmi/ActivityLauncher.java   | 10 ++++++++
 ios/CMakeLists.txt                            |  1 +
 ios/iOS_utils.h                               |  1 +
 ios/iOS_utils.mm                              |  6 +++++
 launcher/helper.cpp                           | 23 ++++---------------
 launcher/modManager/cmodlistview_moc.cpp      |  2 +-
 6 files changed, 23 insertions(+), 20 deletions(-)

diff --git a/android/vcmi-app/src/main/java/eu/vcmi/vcmi/ActivityLauncher.java b/android/vcmi-app/src/main/java/eu/vcmi/vcmi/ActivityLauncher.java
index 858da49b4..25ed0026f 100644
--- a/android/vcmi-app/src/main/java/eu/vcmi/vcmi/ActivityLauncher.java
+++ b/android/vcmi-app/src/main/java/eu/vcmi/vcmi/ActivityLauncher.java
@@ -6,6 +6,8 @@ import android.net.Uri;
 import android.os.Bundle;
 import android.os.Environment;
 import android.provider.DocumentsContract;
+import android.view.Window;
+import android.view.WindowManager;
 
 import androidx.annotation.Nullable;
 
@@ -55,6 +57,14 @@ public class ActivityLauncher extends org.qtproject.qt5.android.bindings.QtActiv
         startActivityForResult(intent, PICK_EXTERNAL_VCMI_DATA_TO_COPY);
     }
 
+    public void setScreensaverEnabled(boolean on)
+    {
+        if(on)
+            getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+        else
+            getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+    }
+
     public void onLaunchGameBtnPressed()
     {
         startActivity(new Intent(ActivityLauncher.this, VcmiSDLActivity.class));
diff --git a/ios/CMakeLists.txt b/ios/CMakeLists.txt
index c4e4ded93..905f6daa2 100644
--- a/ios/CMakeLists.txt
+++ b/ios/CMakeLists.txt
@@ -4,6 +4,7 @@ add_library(iOS_utils SHARED
 )
 target_link_libraries(iOS_utils PRIVATE
 	"-framework Foundation"
+	"-framework UIKit"
 )
 target_include_directories(iOS_utils PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 
diff --git a/ios/iOS_utils.h b/ios/iOS_utils.h
index a50bf18f1..66a9ac28c 100644
--- a/ios/iOS_utils.h
+++ b/ios/iOS_utils.h
@@ -27,5 +27,6 @@ const char *frameworksPath();
 const char *bundleIdentifier();
 
 bool isOsVersionAtLeast(unsigned int osMajorVersion);
+void setScreensaverEnabled(bool isEnabled);
 }
 #pragma GCC visibility pop
diff --git a/ios/iOS_utils.mm b/ios/iOS_utils.mm
index 7f25a9fdc..f85363b15 100644
--- a/ios/iOS_utils.mm
+++ b/ios/iOS_utils.mm
@@ -11,6 +11,7 @@
 #include "iOS_utils.h"
 
 #import <Foundation/Foundation.h>
+#import <UIKit/UIKit.h>
 
 namespace
 {
@@ -51,4 +52,9 @@ bool isOsVersionAtLeast(unsigned int osMajorVersion)
 {
 	return NSProcessInfo.processInfo.operatingSystemVersion.majorVersion >= osMajorVersion;
 }
+
+void setScreensaverEnabled(bool isEnabled)
+{
+	UIApplication.sharedApplication.idleTimerDisabled = isEnabled ? NO : YES;
+}
 }
diff --git a/launcher/helper.cpp b/launcher/helper.cpp
index 8d02c0989..c64a389ff 100644
--- a/launcher/helper.cpp
+++ b/launcher/helper.cpp
@@ -22,11 +22,11 @@
 #ifdef VCMI_ANDROID
 #include <QAndroidJniObject>
 #include <QtAndroid>
-#include <QAndroidJniEnvironment>
 #endif
 
 #ifdef VCMI_IOS
 #include "ios/revealdirectoryinfiles.h"
+#include "iOS_utils.h"
 #endif
 
 #ifdef VCMI_MOBILE
@@ -120,27 +120,12 @@ MainWindow * getMainWindow()
 void keepScreenOn(bool on)
 {
 #if defined(VCMI_ANDROID)
-	// based on https://stackoverflow.com/a/38846485
 	QtAndroid::runOnAndroidThread([on]
 	{
-		QAndroidJniObject activity = QtAndroid::androidActivity();
-		if(activity.isValid())
-		{
-			QAndroidJniObject window = activity.callObjectMethod("getWindow", "()Landroid/view/Window;");
-
-			if(window.isValid())
-			{
-				const int FLAG_KEEP_SCREEN_ON = 128;
-				if(on)
-					window.callMethod<void>("addFlags", "(I)V", FLAG_KEEP_SCREEN_ON);
-				else
-					window.callMethod<void>("clearFlags", "(I)V", FLAG_KEEP_SCREEN_ON);
-			}
-		}
-		QAndroidJniEnvironment env;
-		if (env->ExceptionCheck())
-			env->ExceptionClear();
+		QtAndroid::androidActivity().callMethod<void>("setScreensaverEnabled", "(Z)V", !on);
 	});
+#elif defined(VCMI_IOS)
+	iOS_utils::setScreensaverEnabled(!on);
 #endif
 }
 }
diff --git a/launcher/modManager/cmodlistview_moc.cpp b/launcher/modManager/cmodlistview_moc.cpp
index be27e60e8..75c9becce 100644
--- a/launcher/modManager/cmodlistview_moc.cpp
+++ b/launcher/modManager/cmodlistview_moc.cpp
@@ -793,12 +793,12 @@ void CModListView::downloadFile(QString file, QUrl url, QString description, qin
 		ui->progressBar->setFormat(progressBarFormat);
 	}
 
+	Helper::keepScreenOn(true);
 	dlManager->downloadFile(url, file, sizeBytes);
 }
 
 void CModListView::downloadProgress(qint64 current, qint64 max)
 {
-	Helper::keepScreenOn(true);
 	// display progress, in megabytes
 	ui->progressBar->setVisible(true);
 	ui->progressBar->setMaximum(max / (1024 * 1024));