TweetDuck/Dialogs/Settings/DialogSettingsExternalProgram.cs

using System;
using System.Windows.Forms;
using TweetLib.Utils.Static;
using IOPath = System.IO.Path;

namespace TweetDuck.Dialogs.Settings {
	sealed partial class DialogSettingsExternalProgram : Form {
		public string Path {
			get => StringUtils.NullIfEmpty(textBoxPath.Text);
			set => textBoxPath.Text = value ?? string.Empty;
		}

		public string Args {
			get => StringUtils.NullIfEmpty(textBoxArgs.Text);
			set => textBoxArgs.Text = value ?? string.Empty;
		}

		private readonly string fileDialogTitle;

		public DialogSettingsExternalProgram(string windowTitle, string fileDialogTitle) {
			InitializeComponent();

			Text = Program.BrandName + " Options - " + windowTitle;
			AcceptButton = btnApply;
			CancelButton = btnCancel;

			this.fileDialogTitle = fileDialogTitle;
		}

		private void btnBrowse_Click(object sender, EventArgs e) {
			using OpenFileDialog dialog = new OpenFileDialog {
				AutoUpgradeEnabled = true,
				DereferenceLinks = true,
				InitialDirectory = IOPath.GetDirectoryName(Path), // returns null if argument is null
				Title = fileDialogTitle,
				Filter = "Executables (*.exe;*.bat;*.cmd)|*.exe;*.bat;*.cmd|All Files (*.*)|*.*"
			};

			if (dialog.ShowDialog() == DialogResult.OK && Path != dialog.FileName) {
				Path = dialog.FileName;
				Args = string.Empty;
			}
		}

		private void btnApply_Click(object sender, EventArgs e) {
			DialogResult = DialogResult.OK;
			Close();
		}

		private void btnCancel_Click(object sender, EventArgs e) {
			DialogResult = DialogResult.Cancel;
			Close();
		}
	}
}