public static void UpdateCancelButtonColor(this AutoSuggestBox nativeControl, ISearchBar searchBar, MauiCancelButton?cancelButton, Brush?defaultDeleteButtonBackgroundColorBrush, Brush?defaultDeleteButtonForegroundColorBrush)
{
if (cancelButton == null || !cancelButton.IsReady)
{
return;
}
Color cancelColor = searchBar.CancelButtonColor;
BrushHelpers.UpdateColor(cancelColor, ref defaultDeleteButtonForegroundColorBrush,
() => cancelButton.ForegroundBrush, brush => cancelButton.ForegroundBrush = brush);
if (cancelColor == null)
{
BrushHelpers.UpdateColor(null, ref defaultDeleteButtonBackgroundColorBrush,
() => cancelButton.BackgroundBrush, brush => cancelButton.BackgroundBrush = brush);
}
else
{
// Determine whether the background should be black or white (in order to make the foreground color visible)
var bcolor = cancelColor.ToWindowsColor().GetContrastingColor().ToColor();
BrushHelpers.UpdateColor(bcolor, ref defaultDeleteButtonBackgroundColorBrush,
() => cancelButton.BackgroundBrush, brush => cancelButton.BackgroundBrush = brush);
}
}
public static void UpdatePlaceholderColor(this MauiTextBox textBox, IPlaceholder placeholder, Brush?defaultPlaceholderColorBrush, Brush?defaultPlaceholderColorFocusBrush)
{
Color placeholderColor = placeholder.PlaceholderColor;
BrushHelpers.UpdateColor(placeholderColor, ref defaultPlaceholderColorBrush,
() => textBox.PlaceholderForegroundBrush, brush => textBox.PlaceholderForegroundBrush = brush);
BrushHelpers.UpdateColor(placeholderColor, ref defaultPlaceholderColorFocusBrush,
() => textBox.PlaceholderForegroundFocusBrush, brush => textBox.PlaceholderForegroundFocusBrush = brush);
}
public static void UpdateTextColor(this AutoSuggestBox nativeControl, ISearchBar searchBar, Brush?defaultTextColorBrush, Brush?defaultTextColorFocusBrush, MauiTextBox?queryTextBox)
{
if (queryTextBox == null)
{
return;
}
Color textColor = searchBar.TextColor;
BrushHelpers.UpdateColor(textColor, ref defaultTextColorBrush,
() => queryTextBox.Foreground, brush => queryTextBox.Foreground = brush);
BrushHelpers.UpdateColor(textColor, ref defaultTextColorFocusBrush,
() => queryTextBox.ForegroundFocusBrush, brush => queryTextBox.ForegroundFocusBrush = brush);
}