feat: Add native file dialog support for directory and file selection

requirements.txt

@@ -2,3 +2,4 @@ openpyxl>=3.0.0
 msoffcrypto-tool>=5.0.0
 tqdm>=4.65.0
 streamlit>=1.24.0
+tkinter

src/streamlit_app.py

@@ -7,6 +7,8 @@ import tempfile
 import zipfile
 from pathlib import Path
 import glob
+import platform
+import subprocess
 from main import (
     load_workbook_with_possible_passwords,
     copy_excel_file,
@@ -31,6 +33,43 @@ def save_uploaded_file(uploaded_file):
         tmp_file.write(uploaded_file.getvalue())
         return tmp_file.name
 
+def get_directory_path(title="Select Directory"):
+    """Get directory path using native file dialog when possible"""
+    try:
+        if platform.system() == "Windows":
+            import tkinter as tk
+            from tkinter import filedialog
+            root = tk.Tk()
+            root.withdraw()  # Hide the main window
+            root.attributes('-topmost', True)  # Bring dialog to front
+            path = filedialog.askdirectory(title=title)
+            return path if path else None
+        elif platform.system() == "Linux":
+            # Use zenity for Linux systems
+            try:
+                result = subprocess.run(
+                    ['zenity', '--file-selection', '--directory', '--title', title],
+                    capture_output=True,
+                    text=True
+                )
+                return result.stdout.strip() if result.returncode == 0 else None
+            except FileNotFoundError:
+                return None
+        elif platform.system() == "Darwin":  # macOS
+            try:
+                result = subprocess.run(
+                    ['osascript', '-e', f'choose folder with prompt "{title}"'],
+                    capture_output=True,
+                    text=True
+                )
+                return result.stdout.strip() if result.returncode == 0 else None
+            except FileNotFoundError:
+                return None
+    except Exception as e:
+        st.error(f"Error opening file dialog: {str(e)}")
+        return None
+    return None
+
 def create_zip_file(files_dict):
     """Create a zip file containing all processed files"""
     zip_buffer = BytesIO()
@@ -176,9 +215,21 @@ if uploaded_files:
         with col1:
             source_dir = st.text_input("Source Directory Path", 
                                      help="Enter the full path to the directory containing files to process")
+            source_browse = st.button("Browse Source Directory")
+            if source_browse:
+                path = get_directory_path("Select Source Directory")
+                if path:
+                    source_dir = path
+                    st.session_state['source_dir'] = path  # Persist the selection
             
             dest_dir = st.text_input("Destination Directory Path",
                                     help="Enter the full path where processed files will be saved")
+            dest_browse = st.button("Browse Destination Directory")
+            if dest_browse:
+                path = get_directory_path("Select Destination Directory")
+                if path:
+                    dest_dir = path
+                    st.session_state['dest_dir'] = path  # Persist the selection
         
         with col2:
             if file_type == "Excel":
@@ -191,6 +242,23 @@ if uploaded_files:
                 if password_option == "Password File":
                     password_path = st.text_input("Password File Path", 
                                                 help="Enter the full path to the text file containing passwords")
+                    password_browse = st.button("Browse Password File")
+                    if password_browse:
+                        try:
+                            import tkinter as tk
+                            from tkinter import filedialog
+                            root = tk.Tk()
+                            root.withdraw()
+                            file_path = filedialog.askopenfilename(
+                                title="Select Password File",
+                                filetypes=[("Text Files", "*.txt")]
+                            )
+                            if file_path:
+                                password_path = file_path
+                                st.session_state['password_path'] = file_path
+                        except Exception as e:
+                            st.error(f"Error opening file dialog: {str(e)}")
+                    
                     if password_path and os.path.exists(password_path):
                         with open(password_path, 'r', encoding='utf-8') as pf:
                             passwords = [line.strip() for line in pf if line.strip()]