feat: add components

components/component-filechooser-ex.js

@@ -0,0 +1,26 @@
+
+var Proxy = java.lang.reflect.Proxy;
+var Toolkit = java.awt.Toolkit;
+var FileFilter = javax.swing.filechooser.FileFilter;
+var JFileChooser = javax.swing.JFileChooser;
+
+exports.showDialog = (filter, filterName) => {
+    var fileFilter = new FileFilter({
+        "getDescription": () => {
+            return filterName || 'Default Filter';
+        },
+        "accept": (f) => {
+            return filter(f);
+        }
+    });
+    var chooser = new JFileChooser();
+    if (filter != null) {
+        chooser.setFileFilter(fileFilter);
+    }
+    var ret = chooser.showOpenDialog(null);
+
+    if (ret == JFileChooser.APPROVE_OPTION) {
+        return chooser.getSelectedFile();
+    }
+    return null;
+};