66 lines
2.2 KiB
C#
66 lines
2.2 KiB
C#
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/*
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Copyright (C) 2014-2019 de4dot@gmail.com
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This file is part of dnSpy
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dnSpy is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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dnSpy is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with dnSpy. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System.ComponentModel.Composition;
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using System.IO;
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using System.Windows.Forms;
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namespace dnSpy.Contracts.MVVM {
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/// <summary>
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/// Asks the user to pick a filename
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/// </summary>
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public interface IPickSaveFilename {
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/// <summary>
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/// Lets the user pick a new filename. Returns null if the user didn't pick a new filename.
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/// </summary>
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/// <param name="currentFileName">Current filename or null</param>
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/// <param name="defaultExtension">Default extension. It must not contain a period. Eg. valid
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/// extensions are "exe" and "dll" but not ".exe"</param>
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/// <param name="filter">Filename filter or null</param>
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/// <returns></returns>
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string? GetFilename(string? currentFileName, string? defaultExtension, string? filter = null);
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}
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/// <summary>
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/// Implements <see cref="IPickSaveFilename"/>
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/// </summary>
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[Export(typeof(IPickSaveFilename))]
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public sealed class PickSaveFilename : IPickSaveFilename {
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/// <inheritdoc/>
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public string? GetFilename(string? currentFileName, string? extension, string? filter) {
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var dialog = new SaveFileDialog() {
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Filter = string.IsNullOrEmpty(filter) ? PickFilenameConstants.AnyFilenameFilter : filter,
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RestoreDirectory = true,
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DefaultExt = extension ?? string.Empty,
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ValidateNames = true,
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};
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try {
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dialog.InitialDirectory = Path.GetDirectoryName(currentFileName);
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dialog.FileName = Path.GetFileName(currentFileName);
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}
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catch { }
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if (dialog.ShowDialog() != DialogResult.OK)
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return null;
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return dialog.FileName;
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}
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}
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}
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