From f452dde7c6c5425584b4a66b9f6aa2815137bb2b Mon Sep 17 00:00:00 2001
From: Lucwousin <Lucwousin@users.noreply.github.com>
Date: Tue, 2 Jun 2020 22:47:57 +0200
Subject: [PATCH] Add windowed borderless to "RuneLite" config

---
 .../net/runelite/client/config/RuneLiteConfig.java  | 13 +++++++++++++
 .../main/java/net/runelite/client/ui/ClientUI.java  | 11 ++++++++---
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/runelite-client/src/main/java/net/runelite/client/config/RuneLiteConfig.java b/runelite-client/src/main/java/net/runelite/client/config/RuneLiteConfig.java
index 428ceeef6e..9d5bca453d 100644
--- a/runelite-client/src/main/java/net/runelite/client/config/RuneLiteConfig.java
+++ b/runelite-client/src/main/java/net/runelite/client/config/RuneLiteConfig.java
@@ -112,6 +112,19 @@ public interface RuneLiteConfig extends Config
 		return true;
 	}
 
+	@ConfigItem(
+		keyName = "borderless",
+		name = "Windowed borderless",
+		description = "Use windowed borderless mode",
+		warning = "Please restart your client after changing this setting",
+		position = 6, // I don't want to change all numbers and this moves it below the other 6, fight me
+		titleSection = "uiTitle"
+	)
+	default boolean borderless()
+	{
+		return false;
+	}
+
 	@ConfigItem(
 		keyName = "usernameInTitle",
 		name = "Show display name in title",
diff --git a/runelite-client/src/main/java/net/runelite/client/ui/ClientUI.java b/runelite-client/src/main/java/net/runelite/client/ui/ClientUI.java
index 83fb860185..a454d02117 100644
--- a/runelite-client/src/main/java/net/runelite/client/ui/ClientUI.java
+++ b/runelite-client/src/main/java/net/runelite/client/ui/ClientUI.java
@@ -36,7 +36,6 @@ import java.awt.Graphics;
 import java.awt.Graphics2D;
 import java.awt.GraphicsConfiguration;
 import java.awt.GraphicsDevice;
-import static java.awt.GraphicsDevice.WindowTranslucency.TRANSLUCENT;
 import java.awt.GraphicsEnvironment;
 import java.awt.LayoutManager;
 import java.awt.Rectangle;
@@ -61,7 +60,6 @@ import javax.swing.JButton;
 import javax.swing.JComponent;
 import javax.swing.JFrame;
 import javax.swing.JOptionPane;
-import static javax.swing.JOptionPane.INFORMATION_MESSAGE;
 import javax.swing.JPanel;
 import javax.swing.JRootPane;
 import javax.swing.SwingUtilities;
@@ -99,6 +97,8 @@ import net.runelite.client.util.WinUtil;
 import org.pushingpixels.substance.internal.SubstanceSynapse;
 import org.pushingpixels.substance.internal.utils.SubstanceCoreUtilities;
 import org.pushingpixels.substance.internal.utils.SubstanceTitlePaneUtilities;
+import static java.awt.GraphicsDevice.WindowTranslucency.TRANSLUCENT;
+import static javax.swing.JOptionPane.INFORMATION_MESSAGE;
 
 /**
  * Client UI.
@@ -432,7 +432,8 @@ public class ClientUI
 
 			// Decorate window with custom chrome and titlebar if needed
 			withTitleBar = config.enableCustomChrome();
-			frame.setUndecorated(withTitleBar);
+			final boolean borderless = config.borderless();
+			frame.setUndecorated(withTitleBar | borderless);
 
 			if (withTitleBar)
 			{
@@ -480,6 +481,10 @@ public class ClientUI
 					}
 				});
 			}
+			else if (borderless)
+			{
+				frame.getRootPane().setWindowDecorationStyle(JRootPane.NONE);
+			}
 
 			// Update config
 			updateFrameConfig(true);