From f68cbba282649ffcc447ef696c87d5e25ffbf63c Mon Sep 17 00:00:00 2001
From: Timi <imyeyu6@qq.com>
Date: Mon, 21 Jul 2025 23:52:53 +0800
Subject: [PATCH] add NewValueListener and OldValueListener

---
 .../imyeyu/fx/listener/NewValueListener.java   | 18 ++++++++++++++++++
 .../imyeyu/fx/listener/OldValueListener.java   | 17 +++++++++++++++++
 2 files changed, 35 insertions(+)
 create mode 100644 src/main/java/com/imyeyu/fx/listener/NewValueListener.java
 create mode 100644 src/main/java/com/imyeyu/fx/listener/OldValueListener.java

diff --git a/src/main/java/com/imyeyu/fx/listener/NewValueListener.java b/src/main/java/com/imyeyu/fx/listener/NewValueListener.java
new file mode 100644
index 0000000..8ecd026
--- /dev/null
+++ b/src/main/java/com/imyeyu/fx/listener/NewValueListener.java
@@ -0,0 +1,18 @@
+package com.imyeyu.fx.listener;
+
+import javafx.beans.value.ChangeListener;
+import javafx.beans.value.ObservableValue;
+
+/**
+ * @author 夜雨
+ * @since 2025-07-21 23:22
+ */
+public interface NewValueListener<T> extends ChangeListener<T> {
+
+	void newValue(T newValue);
+
+	@Override
+	default void changed(ObservableValue<? extends T> observable, T oldValue, T newValue) {
+		this.newValue(newValue);
+	}
+}
diff --git a/src/main/java/com/imyeyu/fx/listener/OldValueListener.java b/src/main/java/com/imyeyu/fx/listener/OldValueListener.java
new file mode 100644
index 0000000..dc6bd78
--- /dev/null
+++ b/src/main/java/com/imyeyu/fx/listener/OldValueListener.java
@@ -0,0 +1,17 @@
+package com.imyeyu.fx.listener;
+
+import javafx.beans.value.ChangeListener;
+
+/**
+ * @author 夜雨
+ * @since 2025-07-21 23:41
+ */
+public interface OldValueListener<T> extends ChangeListener<T> {
+
+	void oldValue(T oldValue);
+
+	@Override
+	default void changed(javafx.beans.value.ObservableValue<? extends T> observable, T oldValue, T newValue) {
+		this.oldValue(oldValue);
+	}
+}