StandaloneFileBrowserWindows.cs

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using System;
using System.IO;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using Ookii.Dialogs;
 
namespace SFB;
 
public class StandaloneFileBrowserWindows : IStandaloneFileBrowser
{
    [DllImport("user32.dll")]
    private static extern IntPtr GetActiveWindow();
 
    public string[] OpenFilePanel(string title, string directory, ExtensionFilter[] extensions, bool multiselect)
    {
        VistaOpenFileDialog vistaOpenFileDialog = new VistaOpenFileDialog();
        vistaOpenFileDialog.Title = title;
        if (extensions != null)
        {
            vistaOpenFileDialog.Filter = GetFilterFromFileExtensionList(extensions);
            vistaOpenFileDialog.FilterIndex = 1;
        }
        else
        {
            vistaOpenFileDialog.Filter = string.Empty;
        }
        vistaOpenFileDialog.Multiselect = multiselect;
        if (!string.IsNullOrEmpty(directory))
        {
            vistaOpenFileDialog.FileName = GetDirectoryPath(directory);
        }
        string[] result = ((vistaOpenFileDialog.ShowDialog(new WindowWrapper(GetActiveWindow())) == DialogResult.OK) ? vistaOpenFileDialog.FileNames : new string[0]);
        vistaOpenFileDialog.Dispose();
        return result;
    }
 
    public void OpenFilePanelAsync(string title, string directory, ExtensionFilter[] extensions, bool multiselect, Action<string[]> cb)
    {
        cb(OpenFilePanel(title, directory, extensions, multiselect));
    }
 
    public string[] OpenFolderPanel(string title, string directory, bool multiselect)
    {
        VistaFolderBrowserDialog vistaFolderBrowserDialog = new VistaFolderBrowserDialog();
        vistaFolderBrowserDialog.Description = title;
        if (!string.IsNullOrEmpty(directory))
        {
            vistaFolderBrowserDialog.SelectedPath = GetDirectoryPath(directory);
        }
        string[] result = ((vistaFolderBrowserDialog.ShowDialog(new WindowWrapper(GetActiveWindow())) != DialogResult.OK) ? new string[0] : new string[1] { vistaFolderBrowserDialog.SelectedPath });
        vistaFolderBrowserDialog.Dispose();
        return result;
    }
 
    public void OpenFolderPanelAsync(string title, string directory, bool multiselect, Action<string[]> cb)
    {
        cb(OpenFolderPanel(title, directory, multiselect));
    }
 
    public string SaveFilePanel(string title, string directory, string defaultName, ExtensionFilter[] extensions)
    {
        VistaSaveFileDialog vistaSaveFileDialog = new VistaSaveFileDialog();
        vistaSaveFileDialog.Title = title;
        string text = "";
        if (!string.IsNullOrEmpty(directory))
        {
            text = GetDirectoryPath(directory);
        }
        if (!string.IsNullOrEmpty(defaultName))
        {
            text += defaultName;
        }
        vistaSaveFileDialog.FileName = text;
        if (extensions != null)
        {
            vistaSaveFileDialog.Filter = GetFilterFromFileExtensionList(extensions);
            vistaSaveFileDialog.FilterIndex = 1;
            vistaSaveFileDialog.DefaultExt = extensions[0].Extensions[0];
            vistaSaveFileDialog.AddExtension = true;
        }
        else
        {
            vistaSaveFileDialog.DefaultExt = string.Empty;
            vistaSaveFileDialog.Filter = string.Empty;
            vistaSaveFileDialog.AddExtension = false;
        }
        string result = ((vistaSaveFileDialog.ShowDialog(new WindowWrapper(GetActiveWindow())) == DialogResult.OK) ? vistaSaveFileDialog.FileName : "");
        vistaSaveFileDialog.Dispose();
        return result;
    }
 
    public void SaveFilePanelAsync(string title, string directory, string defaultName, ExtensionFilter[] extensions, Action<string> cb)
    {
        cb(SaveFilePanel(title, directory, defaultName, extensions));
    }
 
    private static string GetFilterFromFileExtensionList(ExtensionFilter[] extensions)
    {
        string text = "";
        for (int i = 0; i < extensions.Length; i++)
        {
            ExtensionFilter extensionFilter = extensions[i];
            text = text + extensionFilter.Name + "(";
            string[] extensions2 = extensionFilter.Extensions;
            foreach (string text2 in extensions2)
            {
                text = text + "*." + text2 + ",";
            }
            text = text.Remove(text.Length - 1);
            text += ") |";
            extensions2 = extensionFilter.Extensions;
            foreach (string text3 in extensions2)
            {
                text = text + "*." + text3 + "; ";
            }
            text += "|";
        }
        return text.Remove(text.Length - 1);
    }
 
    private static string GetDirectoryPath(string directory)
    {
        string text = Path.GetFullPath(directory);
        if (!text.EndsWith("\\"))
        {
            text += "\\";
        }
        if (Path.GetPathRoot(text) == text)
        {
            return directory;
        }
        string directoryName = Path.GetDirectoryName(text);
        char directorySeparatorChar = Path.DirectorySeparatorChar;
        return directoryName + directorySeparatorChar;
    }
}