/// <summary>
/// Method is called via EventCallBack if the keyboard key is no longer pressed inside the Input element.
/// </summary>
/// <param name="e">Contains the key (combination) which was pressed inside the Input element</param>
protected async Task OnKeyDown(KeyboardEventArgs e)
{
if (e == null)
{
throw new ArgumentNullException(nameof(e));
}
var key = e.Key.ToUpperInvariant();
if (key == "ENTER" || key == "TAB" || key == "ESCAPE")
{
_duringManualInput = false;
if (string.IsNullOrWhiteSpace(_inputStart.Value))
{
ClearValue();
}
else
{
await TryApplyInputValue();
}
if (key == "ESCAPE" && _dropDown.IsOverlayShow())
{
Close();
await Js.FocusAsync(_inputStart.Ref);
return;
}
if (key == "ENTER")
{
//needed only in wasm, details: https://github.com/dotnet/aspnetcore/issues/30070
await Task.Yield();
await Js.InvokeVoidAsync(JSInteropConstants.InvokeTabKey);
}
Close();
AutoFocus = false;
return;
}
if (key == "ARROWDOWN" && !_dropDown.IsOverlayShow())
{
await _dropDown.Show();
return;
}
if (key == "ARROWUP" && _dropDown.IsOverlayShow())
{
Close();
return;
}
}
/// <summary>
/// Method is called via EventCallBack if the keyboard key is no longer pressed inside the Input element.
/// </summary>
/// <param name="e">Contains the key (combination) which was pressed inside the Input element</param>
/// <param name="index">Refers to picker index - 0 for starting date, 1 for ending date</param>
protected async Task OnKeyDown(KeyboardEventArgs e, int index)
{
if (e == null)
{
throw new ArgumentNullException(nameof(e));
}
var key = e.Key.ToUpperInvariant();
if (key == "ENTER" || key == "TAB" || key == "ESCAPE")
{
if (_duringManualInput)
{
//A scenario when there are a lot of controls;
//It may happen that incorrect values were entered into one of the input
//followed by ENTER key. This event may be fired before input manages
//to get the value. Here we ensure that input will get that value.
await Task.Delay(5);
_duringManualInput = false;
}
var input = (index == 0 ? _inputStart : _inputEnd);
if (string.IsNullOrWhiteSpace(input.Value))
{
ClearValue(index, false);
}
else if (!await TryApplyInputValue(index, input.Value))
{
return;
}
if (key == "ESCAPE" && _dropDown.IsOverlayShow())
{
Close();
await Js.FocusAsync(input.Ref);
return;
}
if (index == 1)
{
if (key != "TAB")
{
//needed only in wasm, details: https://github.com/dotnet/aspnetcore/issues/30070
await Task.Yield();
await Js.InvokeVoidAsync(JSInteropConstants.InvokeTabKey);
Close();
}
else if (!e.ShiftKey)
{
Close();
AutoFocus = false;
}
}
if (index == 0)
{
if (key == "TAB" && e.ShiftKey)
{
Close();
AutoFocus = false;
}
else if (key != "TAB")
{
await Blur(0);
await Focus(1);
}
}
return;
}
if (key == "ARROWDOWN" && !_dropDown.IsOverlayShow())
{
await _dropDown.Show();
return;
}
if (key == "ARROWUP" && _dropDown.IsOverlayShow())
{
Close();
await Task.Yield();
AutoFocus = true;
return;
}
}
