!2 refactor: #I7XMJG 工厂改为单例模式

Merge pull request !2 from songdragon/refactor-factory

src/main/java/org/jcnc/jnotepad/controller/event/handler/menuBar/OpenFile.java

@@ -40,9 +40,8 @@ public class OpenFile implements EventHandler<ActionEvent> {
      */
     @Override
     public void handle(ActionEvent event) {
-        FileChooserFactory factory = new TextFileChooserFactory();
         // 显示文件选择对话框，并获取选中的文件
-        File file = factory.createFileChooser(
+        File file = TextFileChooserFactory.getInstance().createFileChooser(
                         UiResourceBundle.getContent(TextConstants.OPEN),
                         null,
                         null,

src/main/java/org/jcnc/jnotepad/controller/event/handler/menuBar/RenameFile.java

@@ -88,12 +88,10 @@ public class RenameFile implements EventHandler<ActionEvent> {
      * @since 2023/8/31 21:47
      */
     private void handleRenameRelevanceFile(JNotepadTab jnotepadtab) {
-        // 创建文件选择器对话框工厂，选择文本文件对话框工厂
-        FileChooserFactory factory = new TextFileChooserFactory();
         // 获取原始文件对象
         File file = (File) jnotepadtab.getUserData();
         // 获取应用窗口并绑定
-        File newFile = factory
+        File newFile =  TextFileChooserFactory.getInstance()
                 .createFileChooser(
                         UiResourceBundle.getContent(TextConstants.RENAME),
                         jnotepadtab.getText(),

src/main/java/org/jcnc/jnotepad/controller/event/handler/menuBar/SaveFile.java

@@ -67,10 +67,11 @@ public class SaveFile implements EventHandler<ActionEvent> {
      * @see LogUtil
      */
     protected void saveTab(Class<?> currentClass) {
-        FileChooserFactory factory = new TextFileChooserFactory();
         JNotepadTab selectedTab = UiUtil.getJnotepadtab();
-        if (selectedTab != null) {
+        if (selectedTab == null) {
-            File file = factory.createFileChooser(
+            return;
+        }
+        File file = TextFileChooserFactory.getInstance().createFileChooser(
                         UiResourceBundle.getContent(TextConstants.SAVE_AS),
                         selectedTab.getText(),
                         null,
@@ -85,5 +86,4 @@ public class SaveFile implements EventHandler<ActionEvent> {
             selectedTab.setText(file.getName());
         }
     }
-    }
 }

src/main/java/org/jcnc/jnotepad/ui/dialog/factory/impl/TextFileChooserFactory.java

@@ -13,6 +13,16 @@ import java.io.File;
  */
 public class TextFileChooserFactory implements FileChooserFactory {
 
+    private TextFileChooserFactory() {
+
+    }
+
+    private static final TextFileChooserFactory INSTANCE = new TextFileChooserFactory();
+
+    public static TextFileChooserFactory getInstance() {
+        return INSTANCE;
+    }
+
     /**
      * 创建原始文件选择对话框
      *