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Code Issues Packages Projects Releases Wiki Activity

Use a lock when opening dialogs

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This commit is contained in:
Oleksii Holub
2022-04-09 03:17:30 +03:00
parent 0e138bac7d
commit a44d43eefc
1 changed files with 20 additions and 7 deletions
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27
DiscordChatExporter.Gui/ViewModels/Framework/DialogManager.cs
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@@ -1,5 +1,6 @@
using System;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
using MaterialDesignThemes.Wpf;
using Microsoft.Win32;
@@ -8,9 +9,10 @@ using Stylet;
namespace DiscordChatExporter.Gui.ViewModels.Framework;
public class DialogManager
public class DialogManager : IDisposable
{
private readonly IViewManager _viewManager;
private readonly SemaphoreSlim _dialogLock = new(1, 1);
public DialogManager(IViewManager viewManager)
{
@@ -21,20 +23,26 @@ public class DialogManager
{
var view = _viewManager.CreateAndBindViewForModelIfNecessary(dialogScreen);
void OnDialogOpened(object? sender, DialogOpenedEventArgs openArgs)
void OnDialogOpened(object? openSender, DialogOpenedEventArgs openArgs)
{
void OnScreenClosed(object? o, EventArgs closeArgs)
void OnScreenClosed(object? closeSender, EventArgs args)
{
openArgs.Session.Close();
dialogScreen.Closed -= OnScreenClosed;
}
dialogScreen.Closed += OnScreenClosed;
}
await DialogHost.Show(view, OnDialogOpened);
return dialogScreen.DialogResult;
await _dialogLock.WaitAsync();
try
{
await DialogHost.Show(view, OnDialogOpened);
return dialogScreen.DialogResult;
}
finally
{
_dialogLock.Release();
}
}
public string? PromptSaveFilePath(string filter = "All files|*.*", string defaultFilePath = "")
@@ -59,4 +67,9 @@ public class DialogManager
return dialog.ShowDialog() == true ? dialog.SelectedPath : null;
}
public void Dispose()
{
_dialogLock.Dispose();
}
}