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async archive loading

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This commit is contained in:
Paddy Xu
2017-12-22 13:19:49 +02:00
parent dedac98702
commit 97b749e64f
5 changed files with 157 additions and 55 deletions
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126
QuickLook.Plugin/QuickLook.Plugin.ArchiveViewer/ArchiveInfoPanel.xaml.cs
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@@ -17,9 +17,13 @@
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.IO;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Threading.Tasks;
using System.Windows.Controls;
using QuickLook.Annotations;
using QuickLook.ExtensionMethods;
using SharpCompress.Archives;
using SharpCompress.Common;
@@ -30,9 +34,11 @@ namespace QuickLook.Plugin.ArchiveViewer
/// <summary>
/// Interaction logic for ArchiveInfoPanel.xaml
/// </summary>
public partial class ArchiveInfoPanel : UserControl, IDisposable
public partial class ArchiveInfoPanel : UserControl, IDisposable, INotifyPropertyChanged
{
private readonly Dictionary<string, ArchiveFileEntry> _fileEntries = new Dictionary<string, ArchiveFileEntry>();
private bool _disposed;
private double _loadPercent;
private ulong _totalZippedSize;
private string _type;
@@ -40,58 +46,88 @@ namespace QuickLook.Plugin.ArchiveViewer
{
InitializeComponent();
LoadArchive(path);
// design-time only
Resources.MergedDictionaries.Clear();
fileListView.SetDataContext(_fileEntries[""].Children.Keys);
BeginLoadArchive(path);
}
public double LoadPercent
{
get => _loadPercent;
private set
{
if (value == _loadPercent) return;
_loadPercent = value;
OnPropertyChanged();
}
}
public void Dispose()
{
GC.SuppressFinalize(this);
_fileEntries.Clear();
_disposed = true;
fileListView.Dispose();
}
public event PropertyChangedEventHandler PropertyChanged;
~ArchiveInfoPanel()
{
Dispose();
}
private void LoadArchive(string path)
private void BeginLoadArchive(string path)
{
_totalZippedSize = (ulong) new FileInfo(path).Length;
LoadItemsFromArchive(path);
var folders = -1; // do not count root node
var files = 0;
ulong sizeU = 0L;
_fileEntries.ForEach(e =>
new Task(() =>
{
if (e.Value.IsFolder)
folders++;
_totalZippedSize = (ulong) new FileInfo(path).Length;
var root = new ArchiveFileEntry(Path.GetFileName(path), true);
_fileEntries.Add("", root);
LoadItemsFromArchive(path);
var folders = -1; // do not count root node
var files = 0;
ulong sizeU = 0L;
_fileEntries.ForEach(e =>
{
if (e.Value.IsFolder)
folders++;
else
files++;
sizeU += e.Value.Size;
});
string t;
var d = folders != 0 ? $"{folders} folders" : string.Empty;
var f = files != 0 ? $"{files} files" : string.Empty;
if (!string.IsNullOrEmpty(d) && !string.IsNullOrEmpty(f))
t = $", {d} and {f}";
else if (string.IsNullOrEmpty(d) && string.IsNullOrEmpty(f))
t = string.Empty;
else
files++;
t = $", {d}{f}";
sizeU += e.Value.Size;
});
Dispatcher.Invoke(() =>
{
if (_disposed)
return;
string t;
var d = folders != 0 ? $"{folders} folders" : string.Empty;
var f = files != 0 ? $"{files} files" : string.Empty;
if (!string.IsNullOrEmpty(d) && !string.IsNullOrEmpty(f))
t = $", {d} and {f}";
else if (string.IsNullOrEmpty(d) && string.IsNullOrEmpty(f))
t = string.Empty;
else
t = $", {d}{f}";
fileListView.SetDataContext(_fileEntries[""].Children.Keys);
archiveCount.Content =
$"{_type} archive{t}";
archiveSizeC.Content =
$"Compressed size {((long) _totalZippedSize).ToPrettySize(2)}";
archiveSizeU.Content = $"Uncompressed size {((long) sizeU).ToPrettySize(2)}";
});
archiveCount.Content =
$"{_type} archive{t}";
archiveSizeC.Content =
$"Compressed size {((long) _totalZippedSize).ToPrettySize(2)}";
archiveSizeU.Content = $"Uncompressed size {((long) sizeU).ToPrettySize(2)}";
LoadPercent = 100d;
}).Start();
}
private void LoadItemsFromArchive(string path)
@@ -107,11 +143,13 @@ namespace QuickLook.Plugin.ArchiveViewer
_type = reader.ArchiveType.ToString();
var root = new ArchiveFileEntry(Path.GetFileName(path), true);
_fileEntries.Add("", root);
while (reader.MoveToNextEntry())
{
if (_disposed)
return;
LoadPercent = 100d * stream.Position / stream.Length;
ProcessByLevel(reader.Entry);
}
}
else
{
@@ -119,11 +157,13 @@ namespace QuickLook.Plugin.ArchiveViewer
_type = archive.Type.ToString();
var root = new ArchiveFileEntry(Path.GetFileName(path), true);
_fileEntries.Add("", root);
foreach (var entry in archive.Entries)
{
if (_disposed)
return;
LoadPercent = 100d * stream.Position / stream.Length;
ProcessByLevel(entry);
}
}
}
}
@@ -140,7 +180,7 @@ namespace QuickLook.Plugin.ArchiveViewer
if (_fileEntries.ContainsKey(f))
return;
_fileEntries.TryGetValue(GetDirectoryName(f), out ArchiveFileEntry parent);
_fileEntries.TryGetValue(GetDirectoryName(f), out var parent);
var afe = new ArchiveFileEntry(Path.GetFileName(f), true, parent);
@@ -152,7 +192,7 @@ namespace QuickLook.Plugin.ArchiveViewer
{
var file = pf.Last();
_fileEntries.TryGetValue(GetDirectoryName(file), out ArchiveFileEntry parent);
_fileEntries.TryGetValue(GetDirectoryName(file), out var parent);
_fileEntries.Add(file, new ArchiveFileEntry(Path.GetFileName(entry.Key), false, parent)
{
@@ -179,5 +219,11 @@ namespace QuickLook.Plugin.ArchiveViewer
return frags.Select((s, i) => frags.Take(i + 1).Aggregate((a, b) => a + "\\" + b)).ToArray();
}
[NotifyPropertyChangedInvocator]
protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
{
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
}
}