From 9611a06a3e312855ae38eedf30bfdfecfb3598d8 Mon Sep 17 00:00:00 2001
From: Juuxel <6596629+Juuxel@users.noreply.github.com>
Date: Wed, 20 May 2020 23:35:49 +0300
Subject: Add focusing support for buttons

---
 .../io/github/cottonmc/cotton/gui/widget/WButton.java  | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/src/main/java/io/github/cottonmc/cotton/gui/widget/WButton.java b/src/main/java/io/github/cottonmc/cotton/gui/widget/WButton.java
index 1f9525d..987f50b 100644
--- a/src/main/java/io/github/cottonmc/cotton/gui/widget/WButton.java
+++ b/src/main/java/io/github/cottonmc/cotton/gui/widget/WButton.java
@@ -11,6 +11,7 @@ import net.minecraft.text.Text;
 
 import io.github.cottonmc.cotton.gui.client.ScreenDrawing;
 import io.github.cottonmc.cotton.gui.widget.data.Alignment;
+import org.lwjgl.glfw.GLFW;
 
 public class WButton extends WWidget {
 	private Text label;
@@ -33,13 +34,18 @@ public class WButton extends WWidget {
 	public boolean canResize() {
 		return true;
 	}
-	
+
+	@Override
+	public boolean canFocus() {
+		return true;
+	}
+
 	@Override
 	public void paint(MatrixStack matrices, int x, int y, int mouseX, int mouseY) {
 		boolean hovered = (mouseX>=0 && mouseY>=0 && mouseX<getWidth() && mouseY<getHeight());
 		int state = 1; //1=regular. 2=hovered. 0=disabled.
 		if (!enabled) state = 0;
-		else if (hovered) state = 2;
+		else if (hovered || isFocused()) state = 2;
 		
 		float px = 1/256f;
 		float buttonLeft = 0 * px;
@@ -83,6 +89,14 @@ public class WButton extends WWidget {
 		}
 	}
 
+	@Environment(EnvType.CLIENT)
+	@Override
+	public void onKeyPressed(int ch, int key, int modifiers) {
+		if (ch == GLFW.GLFW_KEY_SPACE || ch == GLFW.GLFW_KEY_ENTER || ch == GLFW.GLFW_KEY_KP_ENTER) {
+			onClick(0, 0, 0);
+		}
+	}
+
 	public WButton setOnClick(Runnable r) {
 		this.onClick = r;
 		return this;
-- 
cgit