private static void ApplyStyles(ReactPasswordBoxShadowNode textNode, TextBlock inline)
{
if (textNode._fontSize != Unset)
{
var fontSize = textNode._fontSize;
inline.FontSize = fontSize;
}
if (textNode._fontStyle.HasValue)
{
var fontStyle = textNode._fontStyle.Value;
inline.FontStyle = fontStyle;
}
if (textNode._fontWeight.HasValue)
{
var fontWeight = textNode._fontWeight.Value;
inline.FontWeight = fontWeight;
}
if (textNode._fontFamily != null)
{
var fontFamily = new FontFamily(textNode._fontFamily);
inline.FontFamily = fontFamily;
}
}
private static YogaSize MeasurePasswordBox(ReactPasswordBoxShadowNode textInputNode, YogaNode node, float width, YogaMeasureMode widthMode, float height, YogaMeasureMode heightMode)
{
var normalizedWidth = Math.Max(0,
(YogaConstants.IsUndefined(width) ? double.PositiveInfinity : width));
var normalizedHeight = Math.Max(0,
(YogaConstants.IsUndefined(height) ? double.PositiveInfinity : height));
var passwordChar = GetDefaultPasswordChar();
var normalizedText = !string.IsNullOrEmpty(textInputNode._text)
? new string(passwordChar[0], textInputNode._text.Length)
: passwordChar;
var textBlock = new TextBlock
{
Text = normalizedText,
};
ApplyStyles(textInputNode, textBlock);
textBlock.Measure(new Size(normalizedWidth, normalizedHeight));
return(MeasureOutput.Make(
(float)Math.Ceiling(width),
(float)Math.Ceiling(textBlock.ActualHeight)));
}
/// <summary>
/// Formats an inline instance with shadow properties.
/// </summary>
/// <param name="textNode">The text shadow node.</param>
/// <param name="box">The password box.</param>
/// <param name="measureOnly">Signals if the operation is used only for measurement.</param>
protected static void FormatPasswordBox(ReactPasswordBoxShadowNode textNode, Control box, bool measureOnly)
{
if (textNode._fontSize != Unset)
{
var fontSize = textNode._fontSize;
box.FontSize = fontSize;
}
if (textNode._fontStyle.HasValue)
{
var fontStyle = textNode._fontStyle.Value;
box.FontStyle = fontStyle;
}
if (textNode._fontWeight.HasValue)
{
var fontWeight = textNode._fontWeight.Value;
box.FontWeight = fontWeight;
}
if (textNode._fontFamily != null)
{
var fontFamily = new FontFamily(textNode._fontFamily);
box.FontFamily = fontFamily;
}
}
private static YogaSize MeasureTextInput(ReactPasswordBoxShadowNode textInputNode, YogaNode node, float width, YogaMeasureMode widthMode, float height, YogaMeasureMode heightMode)
{
textInputNode._computedPadding = textInputNode.GetComputedPadding();
var borderLeftWidth = textInputNode.GetBorder(EdgeSpacing.Left);
var borderRightWidth = textInputNode.GetBorder(EdgeSpacing.Right);
var normalizedWidth = Math.Max(0,
(YogaConstants.IsUndefined(width) ? double.PositiveInfinity : width)
- textInputNode._computedPadding[0]
- textInputNode._computedPadding[2]
- (YogaConstants.IsUndefined(borderLeftWidth) ? 0 : borderLeftWidth)
- (YogaConstants.IsUndefined(borderRightWidth) ? 0 : borderRightWidth));
var normalizedHeight = Math.Max(0, YogaConstants.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 textBlock = new TextBlock
{
TextWrapping = TextWrapping.Wrap,
};
var passwordChar = GetDefaultPasswordChar();
var normalizedText = !string.IsNullOrEmpty(textInputNode._text)
? new string(passwordChar[0], textInputNode._text.Length)
: passwordChar;
var inline = new Run {
Text = normalizedText
};
FormatTextElement(textInputNode, inline);
textBlock.Inlines.Add(inline);
textBlock.Measure(new Size(normalizedWidth, normalizedHeight));
var borderTopWidth = textInputNode.GetBorder(EdgeSpacing.Top);
var borderBottomWidth = textInputNode.GetBorder(EdgeSpacing.Bottom);
var finalizedHeight = (float)textBlock.DesiredSize.Height;
finalizedHeight += textInputNode._computedPadding[1];
finalizedHeight += textInputNode._computedPadding[3];
finalizedHeight += YogaConstants.IsUndefined(borderTopWidth) ? 0 : borderTopWidth;
finalizedHeight += YogaConstants.IsUndefined(borderBottomWidth) ? 0 : borderBottomWidth;
return(MeasureOutput.Make(
(float)Math.Ceiling(width),
(float)Math.Ceiling(finalizedHeight)));
});
return(task.Result);
}
private static YogaSize MeasureTextInput(ReactPasswordBoxShadowNode textInputNode, YogaNode node, float width, YogaMeasureMode widthMode, float height, YogaMeasureMode heightMode)
{
textInputNode._computedPadding = textInputNode.GetComputedPadding();
var borderLeftWidth = textInputNode.GetBorder(YogaEdge.Left);
var borderRightWidth = textInputNode.GetBorder(YogaEdge.Right);
var normalizedWidth = Math.Max(0,
(YogaConstants.IsUndefined(width) ? double.PositiveInfinity : width)
- textInputNode._computedPadding[0]
- textInputNode._computedPadding[2]
- (YogaConstants.IsUndefined(borderLeftWidth) ? 0 : borderLeftWidth)
- (YogaConstants.IsUndefined(borderRightWidth) ? 0 : borderRightWidth));
var normalizedHeight = Math.Max(0, YogaConstants.IsUndefined(height) ? double.PositiveInfinity : height);
// TODO: Measure text with DirectWrite or other API that does not
// require dispatcher access. Currently, we're instantiating a
// second CoreApplicationView (that is never activated) and using
// its Dispatcher thread to calculate layout.
var textBlock = new TextBlock
{
TextWrapping = TextWrapping.Wrap,
};
var passwordChar = GetDefaultPasswordChar();
var normalizedText = !string.IsNullOrEmpty(textInputNode._text)
? new string(passwordChar[0], textInputNode._text.Length)
: passwordChar;
var inline = new Run {
Text = normalizedText
};
FormatTextElement(textInputNode, inline);
textBlock.Inlines.Add(inline);
textBlock.Measure(new Size(normalizedWidth, normalizedHeight));
var borderTopWidth = textInputNode.GetBorder(YogaEdge.Top);
var borderBottomWidth = textInputNode.GetBorder(YogaEdge.Bottom);
var finalizedHeight = (float)textBlock.DesiredSize.Height;
finalizedHeight += textInputNode._computedPadding[1];
finalizedHeight += textInputNode._computedPadding[3];
finalizedHeight += YogaConstants.IsUndefined(borderTopWidth) ? 0 : borderTopWidth;
finalizedHeight += YogaConstants.IsUndefined(borderBottomWidth) ? 0 : borderBottomWidth;
return(MeasureOutput.Make(
(float)Math.Ceiling(width),
(float)Math.Ceiling(finalizedHeight)));
}