private static MeasureOutput MeasureTextInput(CSSNode node, float width, CSSMeasureMode widthMode, float height, CSSMeasureMode heightMode)
{
var textInputNode = (ReactPasswordBoxShadowNode)node;
textInputNode._computedPadding = textInputNode.GetComputedPadding();
var borderLeftWidth = textInputNode.GetBorder(CSSSpacingType.Left);
var borderRightWidth = textInputNode.GetBorder(CSSSpacingType.Right);
var normalizedWidth = Math.Max(0,
(CSSConstants.IsUndefined(width) ? double.PositiveInfinity : width)
- textInputNode._computedPadding[0]
- textInputNode._computedPadding[2]
- (CSSConstants.IsUndefined(borderLeftWidth) ? 0 : borderLeftWidth)
- (CSSConstants.IsUndefined(borderRightWidth) ? 0 : borderRightWidth));
var normalizedHeight = Math.Max(0, CSSConstants.IsUndefined(height) ? double.PositiveInfinity : height);
// This is not a terribly efficient way of projecting the height of
// the text elements. It requires that we have access to the
// dispatcher in order to do measurement, which, for obvious
// reasons, can cause perceived performance issues as it will block
// the UI thread from handling other work.
//
// TODO: determine another way to measure text elements.
var task = DispatcherHelpers.CallOnDispatcher(() =>
{
var textNode = (ReactPasswordBoxShadowNode)node;
var passwordBox = new PasswordBox();
var normalizedText = string.IsNullOrEmpty(textNode._text) ? " " : textNode._text;
FormatPasswordBox(textNode, passwordBox, true);
passwordBox.Password = normalizedText;
passwordBox.Measure(new Size(normalizedWidth, normalizedHeight));
var borderTopWidth = textInputNode.GetBorder(CSSSpacingType.Top);
var borderBottomWidth = textInputNode.GetBorder(CSSSpacingType.Bottom);
var finalizedHeight = (float)passwordBox.DesiredSize.Height;
finalizedHeight += textInputNode._computedPadding[1];
finalizedHeight += textInputNode._computedPadding[3];
finalizedHeight += CSSConstants.IsUndefined(borderTopWidth) ? 0 : borderTopWidth;
finalizedHeight += CSSConstants.IsUndefined(borderBottomWidth) ? 0 : borderBottomWidth;
return(new MeasureOutput(width, finalizedHeight));
});
return(task.Result);
}