From 785c24af623775bc4970c2a485490cfab84f5dab Mon Sep 17 00:00:00 2001
From: Julian Winkler <julian.winkler1@web.de>
Date: Thu, 9 Jan 2025 22:24:13 +0100
Subject: [PATCH] implement View.setKeepScreenOn()

---
 .../generated_headers/android_view_View.h        |  8 ++++++++
 src/api-impl-jni/views/android_view_View.c       | 16 ++++++++++++++++
 src/api-impl/android/view/View.java              | 12 +++++++++++-
 3 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/src/api-impl-jni/generated_headers/android_view_View.h b/src/api-impl-jni/generated_headers/android_view_View.h
index 15e00759..08632e9d 100644
--- a/src/api-impl-jni/generated_headers/android_view_View.h
+++ b/src/api-impl-jni/generated_headers/android_view_View.h
@@ -415,6 +415,14 @@ JNIEXPORT jboolean JNICALL Java_android_view_View_nativeIsFocused
 JNIEXPORT jboolean JNICALL Java_android_view_View_native_1getMatrix
   (JNIEnv *, jobject, jlong, jlong);
 
+/*
+ * Class:     android_view_View
+ * Method:    native_keep_screen_on
+ * Signature: (JZ)V
+ */
+JNIEXPORT void JNICALL Java_android_view_View_native_1keep_1screen_1on
+  (JNIEnv *, jclass, jlong, jboolean);
+
 /*
  * Class:     android_view_View
  * Method:    native_getGlobalVisibleRect
diff --git a/src/api-impl-jni/views/android_view_View.c b/src/api-impl-jni/views/android_view_View.c
index a10db6b4..8d9b4469 100644
--- a/src/api-impl-jni/views/android_view_View.c
+++ b/src/api-impl-jni/views/android_view_View.c
@@ -675,3 +675,19 @@ JNIEXPORT jboolean JNICALL Java_android_view_View_nativeIsFocused(JNIEnv *env, j
 	GtkWidget *wrapper = gtk_widget_get_parent(widget);
 	return gtk_widget_has_focus(widget) || gtk_widget_has_focus(wrapper);
 }
+
+JNIEXPORT void JNICALL Java_android_view_View_native_1keep_1screen_1on(JNIEnv *env, jobject this, jlong widget_ptr, jboolean enable)
+{
+	GtkApplication *application = GTK_APPLICATION(g_application_get_default());
+	GtkWidget *widget = GTK_WIDGET(_PTR(widget_ptr));
+	guint cookie = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(widget), "keep-screen-on-cookie"));
+	if (cookie && !enable) {
+		gtk_application_uninhibit(application, cookie);
+		g_object_set_data(G_OBJECT(widget), "keep-screen-on-cookie", NULL);
+	} else if (!cookie && enable) {
+		GtkWindow *window = GTK_WINDOW(gtk_widget_get_native(widget));
+		GtkApplicationInhibitFlags flags = GTK_APPLICATION_INHIBIT_SUSPEND | GTK_APPLICATION_INHIBIT_IDLE;
+		cookie = gtk_application_inhibit(application, window, flags, "keep-screen-on");
+		g_object_set_data(G_OBJECT(widget), "keep-screen-on-cookie", GINT_TO_POINTER(cookie));
+	}
+}
diff --git a/src/api-impl/android/view/View.java b/src/api-impl/android/view/View.java
index be427d7d..ea365954 100644
--- a/src/api-impl/android/view/View.java
+++ b/src/api-impl/android/view/View.java
@@ -1854,19 +1854,29 @@ public class View implements Drawable.Callback {
 		return System.currentTimeMillis();
 	}
 
-	public void setKeepScreenOn(boolean screenOn) {}
+	private boolean keepScreenOn = false;
+	private static native void native_keep_screen_on(long widget, boolean keepScreenOn);
+	public void setKeepScreenOn(boolean screenOn) {
+		if (attachedToWindow && keepScreenOn != screenOn)
+			native_keep_screen_on(widget, screenOn);
+		keepScreenOn = screenOn;
+	}
 
 	protected void onAttachedToWindow () {
 		attachedToWindow = true;
 		if (onAttachStateChangeListener != null) {
 			onAttachStateChangeListener.onViewAttachedToWindow(this);
 		}
+		if (keepScreenOn)
+			native_keep_screen_on(widget, true);
 	}
 	protected void onDetachedFromWindow() {
 		attachedToWindow = false;
 		if (onAttachStateChangeListener != null) {
 			onAttachStateChangeListener.onViewDetachedFromWindow(this);
 		}
+		if (keepScreenOn)
+			native_keep_screen_on(widget, false);
 	}
 	public void attachToWindowInternal() {
 		onAttachedToWindow();