underlined links

src/main/java/org/polyfrost/chatting/mixin/ChatStyleMixin.java

@@ -0,0 +1,39 @@
+package org.polyfrost.chatting.mixin;
+
+import net.minecraft.event.ClickEvent;
+import net.minecraft.util.ChatStyle;
+import net.minecraft.util.EnumChatFormatting;
+import org.polyfrost.chatting.config.ChattingConfig;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+@Mixin(ChatStyle.class)
+public class ChatStyleMixin {
+    @Shadow
+    private ClickEvent chatClickEvent;
+
+    @Unique
+    private boolean chatting$hasURL() {
+        return ChattingConfig.INSTANCE.getUnderlinedLinks()
+            && chatClickEvent != null
+            && chatClickEvent.getAction() == ClickEvent.Action.OPEN_URL;
+    }
+
+    @Inject(method = "getUnderlined", at = @At("HEAD"), cancellable = true)
+    private void linkUnderline(CallbackInfoReturnable<Boolean> cir) {
+        if (chatting$hasURL()) {
+            cir.setReturnValue(true);
+        }
+    }
+
+    @Inject(method = "getColor", at = @At("HEAD"), cancellable = true)
+    private void linkColor(CallbackInfoReturnable<EnumChatFormatting> cir) {
+        if (chatting$hasURL()) {
+            cir.setReturnValue(EnumChatFormatting.BLUE);
+        }
+    }
+}

src/main/kotlin/org/polyfrost/chatting/config/ChattingConfig.kt

@@ -82,6 +82,13 @@ object ChattingConfig : Config(
     )
     var peekMode = false
 
+    @Switch(
+        name = "Underlined Links", category = "General",
+        description = "Makes clickable links in chat blue and underlined.",
+        size = 1
+    )
+    var underlinedLinks = true
+
     @Switch(
         name = "Smooth Chat Messages",
         category = "Animations", subcategory = "Messages",

src/main/resources/mixins.chatting.json

@@ -25,5 +25,8 @@
     "GuiUtilsMixin",
     "HUDUtilsMixin",
     "InventoryPlayerMixin"
+  ],
+  "mixins": [
+    "ChatStyleMixin"
   ]
 }