fix: make copy chat properly use captureClickableText

Fixes #388

Author: lineargraph

src/main/java/moe/nea/firmament/mixins/CopyChatPatch.java

@@ -3,44 +3,45 @@
 import moe.nea.firmament.features.chat.CopyChat;
 import moe.nea.firmament.mixins.accessor.AccessorChatHud;
 import moe.nea.firmament.util.ClipboardUtils;
+import moe.nea.firmament.util.MC;
 import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.ActiveTextCollector;
+import net.minecraft.client.gui.TextAlignment;
+import net.minecraft.client.gui.render.state.GuiTextRenderState;
 import net.minecraft.client.input.MouseButtonEvent;
 import net.minecraft.client.gui.components.ChatComponent;
 import net.minecraft.client.GuiMessage;
 import net.minecraft.client.gui.screens.ChatScreen;
 import net.minecraft.network.chat.Component;
 import net.minecraft.ChatFormatting;
+import net.minecraft.util.ARGB;
+import net.minecraft.util.FormattedCharSequence;
 import net.minecraft.util.Mth;
+import org.joml.Matrix3x2f;
 import org.spongepowered.asm.mixin.Mixin;
 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;
 
 import java.util.List;
+import java.util.Objects;
 
 @Mixin(ChatScreen.class)
 public class CopyChatPatch {
 	@Inject(method = "mouseClicked", at = @At("HEAD"), cancellable = true)
-	private void onRightClick(MouseButtonEvent click, boolean doubled, CallbackInfoReturnable<Boolean> cir) throws NoSuchFieldException, IllegalAccessException {
+	private void onRightClick(MouseButtonEvent click, boolean doubled, CallbackInfoReturnable<Boolean> cir) {
 		if (click.button() != 1 || !CopyChat.TConfig.INSTANCE.getCopyChat()) return;
 		Minecraft client = Minecraft.getInstance();
 		ChatComponent chatHud = client.gui.getChat();
-		int lineIndex = getChatLineIndex(chatHud, click.y());
-		if (lineIndex < 0) return;
-		// TODO!!! use the new visitor for this (cc: image links)
-		List<GuiMessage.Line> visible = ((AccessorChatHud) chatHud).getVisibleMessages_firmament();
-		if (lineIndex >= visible.size()) return;
-		GuiMessage.Line line = visible.get(lineIndex);
-		String text = CopyChat.INSTANCE.orderedTextToString(line.content());
+		var collector = new CopyChat.HoveredTextLineCollector((int) click.x(), (int) click.y());
+		chatHud.captureClickableText(collector,
+			MC.INSTANCE.getWindow().getGuiScaledHeight(), MC.INSTANCE.getInstance().gui.getGuiTicks(), true);
+		if (collector.getResult() == null) return;
+		String text = CopyChat.INSTANCE.orderedTextToString(collector.getResult());
 		ClipboardUtils.INSTANCE.setTextContent(text);
 		chatHud.addMessage(Component.literal("Copied: ").append(text).withStyle(ChatFormatting.GRAY));
 		cir.setReturnValue(true);
 		cir.cancel();
 	}
-
-	@Unique
-	private int getChatLineIndex(ChatComponent chatHud, double mouseY) {
-		return 0; /// TODO!!!!
-	}
 }

src/main/kotlin/features/chat/CopyChat.kt

@@ -1,6 +1,13 @@
 package moe.nea.firmament.features.chat
 
+import org.joml.Matrix3x2f
+import net.minecraft.client.gui.ActiveTextCollector
+import net.minecraft.client.gui.TextAlignment
+import net.minecraft.client.gui.render.state.GuiTextRenderState
+import net.minecraft.network.chat.Component
+import net.minecraft.util.ARGB
 import net.minecraft.util.FormattedCharSequence
+import moe.nea.firmament.util.MC.font
 import moe.nea.firmament.util.data.Config
 import moe.nea.firmament.util.data.ManagedConfig
 import moe.nea.firmament.util.reconstitute
@@ -15,6 +22,61 @@ object CopyChat {
 		val copyChat by toggle("copy-chat") { false }
 	}
 
+	class HoveredTextLineCollector(val testX: Int, val testY: Int) : ActiveTextCollector {
+		var parameters: ActiveTextCollector.Parameters = ActiveTextCollector.Parameters(Matrix3x2f())
+
+		override fun defaultParameters(): ActiveTextCollector.Parameters {
+			return parameters
+		}
+
+		override fun defaultParameters(parameters: ActiveTextCollector.Parameters) {
+			this.parameters = parameters
+		}
+
+		override fun accept(
+			textAlignment: TextAlignment,
+			i: Int,
+			j: Int,
+			parameters: ActiveTextCollector.Parameters,
+			formattedCharSequence: FormattedCharSequence
+		) {
+			val k = textAlignment.calculateLeft(i, font, formattedCharSequence)
+			if (GuiTextRenderState(
+					font,
+					formattedCharSequence,
+					parameters.pose(),
+					k,
+					j,
+					ARGB.white(parameters.opacity()),
+					0,
+					true,
+					true,
+					parameters.scissor()
+				)
+					.bounds()!!
+					.containsPoint(testX, testY)
+			) {
+				this.result = formattedCharSequence
+			}
+		}
+
+		var result: FormattedCharSequence? = null
+
+		override fun acceptScrolling(
+			component: Component,
+			i: Int,
+			j: Int,
+			k: Int,
+			l: Int,
+			m: Int,
+			parameters: ActiveTextCollector.Parameters
+		) {
+			val n = font.width(component)
+			val o = 9
+			this.defaultScrollingHelper(component, i, j, k, l, m, n, o, parameters)
+		}
+	}
+
 	fun orderedTextToString(orderedText: FormattedCharSequence): String {
 		return orderedText.reconstitute().string
 	}