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Implemented onTextChange feature #397

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Implemented onTextChange feature #397

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2c176c3
Bump Spigot API version
ezariago Mar 28, 2026
a410c8f
Adjusted constructors & implemented PrepareAnvilEvent
ezariago Mar 28, 2026
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2 changes: 1 addition & 1 deletion api/pom.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,7 @@
<dependency>
<groupId>org.spigotmc</groupId>
<artifactId>spigot</artifactId>
<version>1.8-R0.1-SNAPSHOT</version>
<version>1.9-R0.1-SNAPSHOT</version>
<scope>provided</scope>
</dependency>
<dependency>
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68 changes: 60 additions & 8 deletions api/src/main/java/net/wesjd/anvilgui/AnvilGUI.java
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Original file line number Diff line number Diff line change
Expand Up @@ -13,16 +13,14 @@
import java.util.function.Function;
import java.util.logging.Level;
import net.md_5.bungee.api.chat.BaseComponent;
import net.wesjd.anvilgui.version.VersionMatcher;
import net.wesjd.anvilgui.version.VersionWrapper;
import net.wesjd.anvilgui.version.*;
import org.apache.commons.lang.Validate;
import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.HandlerList;
import org.bukkit.event.Listener;
import org.bukkit.event.*;
import org.bukkit.event.inventory.*;
import org.bukkit.event.inventory.PrepareAnvilEvent;
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@WesJD WesJD Apr 1, 2026

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PrepareAnvilEvent isn't going to exist in 1.7 and 1.8 like you mentioned in the implementation of registerEvents. You will need to move the registration of that specific event to the version wrappers.

import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
Expand Down Expand Up @@ -98,6 +96,8 @@ private static ItemStack itemNotNull(ItemStack stack) {
private final boolean concurrentClickHandlerExecution;
/** An {@link BiFunction} that is called when a slot is clicked */
private final ClickHandler clickHandler;
/** A {@link BiConsumer} that is called when the string of the anvil input has been changed. */
private final BiConsumer<Player, String> prepareListener;

/**
* The container id of the inventory, used for NMS methods
Expand Down Expand Up @@ -136,6 +136,7 @@ private static ItemStack itemNotNull(ItemStack stack) {
* @param closeListener A {@link Consumer} when the inventory closes
* @param concurrentClickHandlerExecution Flag to allow concurrent execution of the click handler
* @param clickHandler A {@link ClickHandler} that is called when the player clicks a slot
* @param prepareListener A {@link BiConsumer} that is called when the string of the anvil input has been changed.
*/
private AnvilGUI(
Plugin plugin,
Expand All @@ -148,7 +149,8 @@ private AnvilGUI(
Set<Integer> interactableSlots,
Consumer<StateSnapshot> closeListener,
boolean concurrentClickHandlerExecution,
ClickHandler clickHandler) {
ClickHandler clickHandler,
BiConsumer<Player, String> prepareListener) {
this.plugin = plugin;
this.player = player;
this.mainThreadExecutor = mainThreadExecutor;
Expand All @@ -160,13 +162,14 @@ private AnvilGUI(
this.closeListener = closeListener;
this.concurrentClickHandlerExecution = concurrentClickHandlerExecution;
this.clickHandler = clickHandler;
this.prepareListener = prepareListener;
}

/**
* Opens the anvil GUI
*/
private void openInventory() {
Bukkit.getPluginManager().registerEvents(listener, plugin);
registerEvents(listener, plugin);

container = WRAPPER.newContainerAnvil(player, titleComponent);

Expand Down Expand Up @@ -293,6 +296,41 @@ public Inventory getInventory() {
return inventory;
}

public void registerEvents(Listener listener, Plugin plugin) {
Bukkit.getPluginManager().registerEvents(listener, plugin);

// registering the AnvilPrepareEvent listener externally since this event is not
// available for MC 1.7 and 1.8.
if (!(WRAPPER.getClass() == Wrapper1_7_R4.class
|| WRAPPER.getClass() == Wrapper1_8_R1.class
|| WRAPPER.getClass() == Wrapper1_8_R2.class
|| WRAPPER.getClass() == Wrapper1_8_R3.class)) {

Bukkit.getPluginManager()
.registerEvent(
PrepareAnvilEvent.class,
listener,
EventPriority.NORMAL,
(listener1, event) -> {
PrepareAnvilEvent prepareEvent = (PrepareAnvilEvent) event;

if (prepareEvent.getInventory().equals(inventory)) {
Player player =
(Player) prepareEvent.getView().getPlayer();
if (prepareListener != null) {
prepareListener.accept(
player,
prepareEvent
.getResult()
.getItemMeta()
.getDisplayName());
}
}
},
plugin);
}
}

/**
* Simply holds the listeners for the GUI
*/
Expand Down Expand Up @@ -416,6 +454,8 @@ public static class Builder {
private boolean concurrentClickHandlerExecution = false;
/** An {@link Function} that is called when a slot in the inventory has been clicked */
private ClickHandler clickHandler;
/** A {@link BiConsumer} that is called when the string of the anvil input has been changed. */
private BiConsumer<Player, String> textChangeListener;
/** A state that decides where the anvil GUI is able to be closed by the user */
private boolean preventClose = false;
/** A state that determines whether support for Geyser software is enabled */
Expand Down Expand Up @@ -642,6 +682,17 @@ public Builder itemOutput(ItemStack item) {
return this;
}

/**
* Listens for changes in the text input field of the anvil. Ineffective for MC versions 1.7.* and 1.8.*
*
* @param textChangeListener An {@link BiConsumer} that is called when the string of the input field is changed
* @return The {@link Builder} instance
*/
public Builder onTextChange(BiConsumer<Player, String> textChangeListener) {
this.textChangeListener = textChangeListener;
return this;
}

/**
* Creates the anvil GUI and opens it for the player
*
Expand Down Expand Up @@ -680,7 +731,8 @@ public AnvilGUI open(Player player) {
interactableSlots,
closeListener,
concurrentClickHandlerExecution,
clickHandler);
clickHandler,
textChangeListener);
anvilGUI.openInventory();
return anvilGUI;
}
Expand Down