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#region Copyright & License Information | ||
/* | ||
* Copyright 2007-2022 The OpenRA Developers (see AUTHORS) | ||
* This file is part of OpenRA, which is free software. It is made | ||
* available to you under the terms of the GNU General Public License | ||
* as published by the Free Software Foundation, either version 3 of | ||
* the License, or (at your option) any later version. For more | ||
* information, see COPYING. | ||
*/ | ||
#endregion | ||
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using System; | ||
using System.Collections.Generic; | ||
using System.IO; | ||
using System.Linq; | ||
using OpenRA.FileSystem; | ||
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namespace OpenRA | ||
{ | ||
public sealed class MapDirectoryTracker : IDisposable | ||
{ | ||
readonly FileSystemWatcher watcher; | ||
readonly MapGrid mapGrid; | ||
readonly IReadOnlyPackage package; | ||
readonly MapClassification classification; | ||
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enum MapAction { Add, Delete, Update } | ||
readonly Dictionary<string, MapAction> mapActionQueue = new Dictionary<string, MapAction>(); | ||
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bool dirty = false; | ||
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public MapDirectoryTracker(MapGrid mapGrid, IReadOnlyPackage package, MapClassification classification) | ||
{ | ||
this.mapGrid = mapGrid; | ||
this.package = package; | ||
this.classification = classification; | ||
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watcher = new FileSystemWatcher(package.Name); | ||
watcher.Changed += (object sender, FileSystemEventArgs e) => AddMapAction(MapAction.Update, e.FullPath); | ||
watcher.Created += (object sender, FileSystemEventArgs e) => AddMapAction(MapAction.Add, e.FullPath); | ||
watcher.Deleted += (object sender, FileSystemEventArgs e) => AddMapAction(MapAction.Delete, e.FullPath); | ||
watcher.Renamed += (object sender, RenamedEventArgs e) => AddMapAction(MapAction.Add, e.FullPath, e.OldFullPath); | ||
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watcher.IncludeSubdirectories = true; | ||
watcher.EnableRaisingEvents = true; | ||
} | ||
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public void Dispose() | ||
{ | ||
watcher.Dispose(); | ||
} | ||
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void AddMapAction(MapAction mapAction, string fullpath, string oldFullPath = null) | ||
{ | ||
lock (mapActionQueue) | ||
{ | ||
dirty = true; | ||
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// if path is not root, update map instead | ||
var path = RemoveSubDirs(fullpath); | ||
if (fullpath == path) | ||
mapActionQueue[path] = mapAction; | ||
else | ||
mapActionQueue[path] = MapAction.Update; | ||
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// called when file has been renamed / changed location | ||
if (oldFullPath != null) | ||
{ | ||
var oldpath = RemoveSubDirs(oldFullPath); | ||
if (oldpath != null) | ||
if (oldFullPath == oldpath) | ||
mapActionQueue[oldpath] = MapAction.Delete; | ||
else | ||
mapActionQueue[oldpath] = MapAction.Update; | ||
} | ||
} | ||
} | ||
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public void UpdateMaps(MapCache mapcache) | ||
{ | ||
lock (mapActionQueue) | ||
{ | ||
if (!dirty) | ||
return; | ||
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dirty = false; | ||
foreach (var mapAction in mapActionQueue) | ||
{ | ||
var map = mapcache.FirstOrDefault(x => x.Package?.Name == mapAction.Key && x.Status == MapStatus.Available); | ||
if (map != null) | ||
{ | ||
if (mapAction.Value == MapAction.Delete) | ||
{ | ||
Console.WriteLine(mapAction.Key + " was deleted"); | ||
map.Invalidate(); | ||
} | ||
else | ||
{ | ||
Console.WriteLine(mapAction.Key + " was updated"); | ||
map.Invalidate(); | ||
mapcache.LoadMap(mapAction.Key.Replace(package.Name + Path.DirectorySeparatorChar, ""), package, classification, mapGrid, map.Uid); | ||
} | ||
} | ||
else | ||
{ | ||
if (mapAction.Value != MapAction.Delete) | ||
{ | ||
Console.WriteLine(mapAction.Key + " was added"); | ||
mapcache.LoadMap(mapAction.Key.Replace(package?.Name + Path.DirectorySeparatorChar, ""), package, classification, mapGrid, null); | ||
} | ||
} | ||
} | ||
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mapActionQueue.Clear(); | ||
} | ||
} | ||
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string RemoveSubDirs(string path) | ||
{ | ||
var endPath = path.Replace(package.Name + Path.DirectorySeparatorChar, ""); | ||
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// if file moved from out outside directory, ignore it | ||
if (path == endPath) | ||
return null; | ||
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return package.Name + Path.DirectorySeparatorChar + endPath.Split(Path.DirectorySeparatorChar)[0]; | ||
} | ||
} | ||
} |
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