added new file function, fixed new directory

src/main/java/cz/kamma/kfmanager/service/FileOperations.java

@@ -550,6 +550,16 @@ public class FileOperations {
             throw new IOException("Failed to create directory");
         }
     }
+
+    /**
+     * Create a new empty file
+     */
+    public static void createFile(File parentDirectory, String name) throws IOException {
+        File newFile = new File(parentDirectory, name);
+        if (!newFile.createNewFile()) {
+            throw new IOException("Failed to create file (maybe it already exists?)");
+        }
+    }
     
     /**
     * Delete directory recursively

src/main/java/cz/kamma/kfmanager/ui/MainWindow.java

@@ -779,9 +779,6 @@ public class MainWindow extends JFrame {
     JButton btnTerminal = new JButton("F9 Terminal");
         btnTerminal.addActionListener(e -> openTerminal());
         
-    JButton btnRename = new JButton("Shift+F6 Rename");
-        btnRename.addActionListener(e -> renameFile());
-        
     JButton btnExit = new JButton("F10 Exit");
         btnExit.addActionListener(e -> saveConfigAndExit());
         
@@ -792,7 +789,6 @@ public class MainWindow extends JFrame {
         buttonPanel.add(btnNewDir);
         buttonPanel.add(btnDelete);
         buttonPanel.add(btnTerminal);
-        buttonPanel.add(btnRename);
         buttonPanel.add(btnExit);
     }
     
@@ -1076,6 +1072,11 @@ public class MainWindow extends JFrame {
         rootPane.registerKeyboardAction(e -> createNewDirectory(),
                 KeyStroke.getKeyStroke(KeyEvent.VK_F7, 0),
                 JComponent.WHEN_IN_FOCUSED_WINDOW);
+
+    // Shift+F4 - New file
+        rootPane.registerKeyboardAction(e -> createNewFile(),
+                KeyStroke.getKeyStroke(KeyEvent.VK_F4, InputEvent.SHIFT_DOWN_MASK),
+                JComponent.WHEN_IN_FOCUSED_WINDOW);
         
     // F8 - Delete
         rootPane.registerKeyboardAction(e -> deleteFiles(),
@@ -1792,9 +1793,14 @@ public class MainWindow extends JFrame {
      * Create a new directory
      */
     private void createNewDirectory() {
+        String initialValue = "New directory";
+        FileItem focusedItem = activePanel.getFocusedItem();
+        if (focusedItem != null && !focusedItem.getName().equals("..")) {
+            initialValue = focusedItem.getName();
+        }
         String dirNameInput = JOptionPane.showInputDialog(this,
             "New directory name:",
-            "New directory");
+            initialValue);
             
         if (dirNameInput != null && !dirNameInput.trim().isEmpty()) {
             final String dirName = dirNameInput.trim();
@@ -1811,6 +1817,32 @@ public class MainWindow extends JFrame {
             }
         }
     }
+
+    private void createNewFile() {
+        String initialValue = "New file.txt";
+        FileItem focusedItem = activePanel.getFocusedItem();
+        if (focusedItem != null && !focusedItem.getName().equals("..")) {
+            initialValue = focusedItem.getName();
+        }
+        String fileNameInput = JOptionPane.showInputDialog(this,
+                "New file name:",
+                initialValue);
+
+        if (fileNameInput != null && !fileNameInput.trim().isEmpty()) {
+            final String fileName = fileNameInput.trim();
+            performFileOperation((callback) -> {
+                FileOperations.createFile(activePanel.getCurrentDirectory(), fileName);
+            }, "File created", false, () -> {
+                if (activePanel != null && activePanel.getCurrentTab() != null) {
+                    activePanel.getCurrentTab().selectItem(fileName);
+                }
+            }, activePanel);
+        } else {
+            if (activePanel != null && activePanel.getFileTable() != null) {
+                activePanel.getFileTable().requestFocusInWindow();
+            }
+        }
+    }
     
     /**
      * Show search dialog