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Improving UI performance (#5216)

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* Added fast observable collection

* Updated to use 1 collection changed event per query

* Moved result updating to background thread

* Changed collapsed to hidden for virtualization

* Moved all token cancellations inside try catch

* Fixed freeze on deleting first letter

* nit fixes

* Moved update logic to plugin result loop

* Updated doc comment for AddResults function

* fix result clear on empty query
This commit is contained in:
Divyansh Srivastava
2020-07-27 18:13:47 -07:00
committed by GitHub
parent 5fb7d43aff
commit 87ae1c6a9b
4 changed files with 112 additions and 80 deletions
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19
src/modules/launcher/PowerLauncher/MainWindow.xaml.cs
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@@ -315,8 +315,6 @@ namespace PowerLauncher
}
}
private const int millisecondsToWait = 100;
private static DateTime s_lastTimeOfTyping;
private bool disposedValue = false;
private void QueryTextBox_TextChanged(object sender, TextChangedEventArgs e)
@@ -335,22 +333,7 @@ namespace PowerLauncher
SearchBox.AutoCompleteTextBlock.Text = string.Empty;
}
_viewModel.QueryText = text;
var latestTimeOfTyping = DateTime.Now;
Task.Run(() => DelayedCheck(latestTimeOfTyping));
s_lastTimeOfTyping = latestTimeOfTyping;
}
}
private async Task DelayedCheck(DateTime latestTimeOfTyping)
{
await Task.Delay(millisecondsToWait).ConfigureAwait(false);
if (latestTimeOfTyping.Equals(s_lastTimeOfTyping))
{
await System.Windows.Application.Current.Dispatcher.BeginInvoke(new Action(() =>
{
_viewModel.Query();
}));
_viewModel.Query();
}
}