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Persist view model between theme swaps

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This commit is contained in:
Matt Nadareski
2021-07-05 23:09:22 -07:00
parent 0ae58ab21c
commit 7f4992d2d0
2 changed files with 22 additions and 6 deletions
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10
RedBookPlayer.GUI/MainWindow.xaml.cs
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@@ -5,6 +5,7 @@ using System.Xml;
using Avalonia.Controls;
using Avalonia.Input;
using Avalonia.Markup.Xaml;
using RedBookPlayer.Common;
namespace RedBookPlayer.GUI
{
@@ -30,10 +31,13 @@ namespace RedBookPlayer.GUI
if(string.IsNullOrWhiteSpace(theme))
return;
// If we already have a view, cache the view model
PlayerViewModel pvm = ((PlayerView)Instance.ContentControl.Content).PlayerViewModel;
// If the theme name is "default", we assume the internal theme is used
if(theme.Equals("default", StringComparison.CurrentCultureIgnoreCase))
{
Instance.ContentControl.Content = new PlayerView();
Instance.ContentControl.Content = new PlayerView(pvm);
}
else
{
@@ -50,12 +54,12 @@ namespace RedBookPlayer.GUI
{
string xaml = File.ReadAllText(xamlPath);
xaml = xaml.Replace("Source=\"", $"Source=\"file://{themeDirectory}/");
Instance.ContentControl.Content = new PlayerView(xaml);
Instance.ContentControl.Content = new PlayerView(xaml, pvm);
}
catch(XmlException ex)
{
Console.WriteLine($"Error: invalid theme XAML ({ex.Message}), reverting to default");
Instance.ContentControl.Content = new PlayerView();
Instance.ContentControl.Content = new PlayerView(pvm);
}
}