add SimpleButton

minecraft/gui/button/src/main/java/me/hsgamer/hscore/minecraft/gui/button/SimpleButton.java

@@ -0,0 +1,82 @@
+package me.hsgamer.hscore.minecraft.gui.button;
+
+import me.hsgamer.hscore.minecraft.gui.common.action.Action;
+import me.hsgamer.hscore.minecraft.gui.common.button.Button;
+import me.hsgamer.hscore.minecraft.gui.common.event.ClickEvent;
+import me.hsgamer.hscore.minecraft.gui.common.inventory.InventoryContext;
+import me.hsgamer.hscore.minecraft.gui.common.item.ActionItem;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.UUID;
+import java.util.function.Consumer;
+import java.util.function.Function;
+
+/**
+ * A simple button
+ */
+public class SimpleButton implements Button {
+  private final Function<UUID, Object> itemFunction;
+  private final Consumer<ClickEvent> consumer;
+
+  /**
+   * Create a new simple button
+   *
+   * @param itemFunction the item function
+   * @param consumer     the consumer
+   */
+  public SimpleButton(@NotNull Function<@NotNull UUID, @Nullable Object> itemFunction, @NotNull Consumer<@NotNull ClickEvent> consumer) {
+    this.itemFunction = itemFunction;
+    this.consumer = consumer;
+  }
+
+  /**
+   * Create a new button
+   *
+   * @param item     the item
+   * @param consumer the consumer
+   */
+  public SimpleButton(@Nullable Object item, @NotNull Consumer<@NotNull ClickEvent> consumer) {
+    this(uuid -> item, consumer);
+  }
+
+  /**
+   * Create a new button with a null item
+   *
+   * @param consumer the consumer
+   */
+  public SimpleButton(@NotNull Consumer<@NotNull ClickEvent> consumer) {
+    this((Object) null, consumer);
+  }
+
+  /**
+   * Create a new button
+   *
+   * @param itemFunction the item function
+   */
+  public SimpleButton(@NotNull Function<@NotNull UUID, @Nullable Object> itemFunction) {
+    this(itemFunction, event -> {
+    });
+  }
+
+  /**
+   * Create a new button
+   *
+   * @param item the item
+   */
+  public SimpleButton(@Nullable Object item) {
+    this(uuid -> item);
+  }
+
+  @Override
+  public @NotNull ActionItem getItem(InventoryContext context) {
+    return new ActionItem()
+      .setItem(itemFunction.apply(context.getViewerID()))
+      .setAction(new Action() {
+        @Override
+        public void handleClick(ClickEvent event) {
+          consumer.accept(event);
+        }
+      });
+  }
+}