src/main/java/com/ambientaddons/mixin/MixinGuiScreen.java


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package com.ambientaddons.mixin;

import com.ambientaddons.events.GuiContainerEvent;
import com.ambientaddons.events.MessageSentEvent;
import net.minecraft.client.gui.GuiScreen;
import net.minecraftforge.common.MinecraftForge;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Inject;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;

@Mixin(GuiScreen.class)
public abstract class MixinGuiScreen {

    @Inject(method = "sendChatMessage(Ljava/lang/String;)V", at = @At("HEAD"), cancellable = true)
    public void sendChatMessage(String msg, CallbackInfo ci) {
        if (MinecraftForge.EVENT_BUS.post(new MessageSentEvent(msg))) {
            ci.cancel();
        }
    }
}