keii.dev
A game framework written with osu! in mind.
1// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
2// See the LICENCE file in the repository root for full licence text.
3
4using System;
5using System.Collections.Generic;
6using System.IO;
7using System.Linq;
8using osu.Framework.Allocation;
9using osu.Framework.Bindables;
10using osu.Framework.Extensions.EnumExtensions;
11using osu.Framework.Input.Events;
12
13namespace osu.Framework.Graphics.UserInterface
14{
15 /// <summary>
16 /// A component which allows a user to select a file.
17 /// </summary>
18 public abstract class FileSelector : DirectorySelector
19 {
20 private readonly string[] validFileExtensions;
21 protected abstract DirectoryListingFile CreateFileItem(FileInfo file);
22
23 [Cached]
24 public readonly Bindable<FileInfo> CurrentFile = new Bindable<FileInfo>();
25
26 protected FileSelector(string initialPath = null, string[] validFileExtensions = null)
27 : base(initialPath)
28 {
29 this.validFileExtensions = validFileExtensions ?? Array.Empty<string>();
30 }
31
32 protected override bool TryGetEntriesForPath(DirectoryInfo path, out ICollection<DirectorySelectorItem> items)
33 {
34 items = new List<DirectorySelectorItem>();
35
36 if (!base.TryGetEntriesForPath(path, out var directories))
37 return false;
38
39 items = directories;
40
41 try
42 {
43 IEnumerable<FileInfo> files = path.GetFiles();
44
45 if (validFileExtensions.Length > 0)
46 files = files.Where(f => validFileExtensions.Contains(f.Extension));
47
48 foreach (var file in files.OrderBy(d => d.Name))
49 {
50 if (!file.Attributes.HasFlagFast(FileAttributes.Hidden))
51 items.Add(CreateFileItem(file));
52 }
53
54 return true;
55 }
56 catch
57 {
58 return false;
59 }
60 }
61
62 protected abstract class DirectoryListingFile : DirectorySelectorItem
63 {
64 protected readonly FileInfo File;
65
66 [Resolved]
67 private Bindable<FileInfo> currentFile { get; set; }
68
69 protected DirectoryListingFile(FileInfo file)
70 {
71 File = file;
72 }
73
74 protected override bool OnClick(ClickEvent e)
75 {
76 currentFile.Value = File;
77 return true;
78 }
79
80 protected override string FallbackName => File.Name;
81 }
82 }
83}