public static bool TryParse(
string height,
string width,
out Measurement2d result)
{
decimal heightValue = default;
decimal widthValue = default;
if (
!decimal.TryParse(height.Split(' ').FirstOrDefault(), out heightValue) ||
!decimal.TryParse(width.Split(' ').FirstOrDefault(), out widthValue))
{
result = null;
return(false);
}
var heightUnit = height
.Replace(heightValue.ToString(), string.Empty)
.Trim();
var widthUnit = width
.Replace(widthValue.ToString(), string.Empty)
.Trim();
if (string.IsNullOrEmpty(heightUnit) || string.IsNullOrEmpty(widthUnit))
{
result = null;
return(false);
}
result = new Measurement2d()
{
Height = new Measurement()
{
Unit = heightUnit,
Value = heightValue
},
Width = new Measurement()
{
Unit = widthUnit,
Value = widthValue
}
};
return(true);
}
public async override Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
{
if (Measurement2d.TryParse(Height, Width, out var measurement))
{
context.Items.Add(nameof(ScaleCosmosContext), new ScaleCosmosContext()
{
Measurements = measurement,
Translator = Translator ?? DefaultTranslator.SingleInstance
});
Translator.TryTranslation(measurement.Height.Value, measurement.Height.Unit, measurement.Width.Unit, out var translatedHeight);
var childContent = await output.GetChildContentAsync();
output.Content.Clear();
output.Content.AppendHtml(
$"<div data-sc-fluid-container style=\"height:calc(100% * {translatedHeight / measurement.Width.Value});width:calc(100% * {measurement.Width.Value / translatedHeight});max-height:100%;max-width:100%;\">");
output.Content.AppendHtml(childContent);
output.Content.AppendHtml("</div>");
output.Attributes.SetAttribute(
"style",
$"--sc-ratio-height:{translatedHeight / measurement.Width.Value};--sc-ratio-width:1");
}
else
{
throw new Exception(
"Could not determine measurements. Make sure to have a space between the value and unit.");
}
if (output.Attributes.TryGetAttribute("sc-container", out var attribute))
{
output.Attributes.Remove(attribute);
}
output.Attributes.Add("data-sc-fixed-container", null);
}
public override Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
{
if (context.Items.TryGetValue(nameof(ScaleCosmosContext), out var tempContext) && tempContext is ScaleCosmosContext cosmosContext)
{
if (Measurement2d.TryParse(Height, Width, out var measurement))
{
cosmosContext.Translator.TryTranslation(measurement.Height.Value, measurement.Height.Unit, cosmosContext.Measurements.Height.Unit, out var objectHeight);
cosmosContext.Translator.TryTranslation(measurement.Width.Value, measurement.Width.Unit, cosmosContext.Measurements.Width.Unit, out var objectWidth);
var scaleHeight = (objectHeight / cosmosContext.Measurements.Height.Value) * 100.0m;
var scaleWidth = (objectWidth / cosmosContext.Measurements.Width.Value) * 100.0m;
output.Attributes.SetAttribute("style", $"height:{scaleHeight}%;width:{scaleWidth}%;");
}
else
{
throw new Exception(
"Could not determine measurements. Make sure to have a space between the value and unit.");
}
}
else
{
throw new Exception(
"Could not retrieve parent-tag context.");
}
if (output.Attributes.TryGetAttribute("sc-object", out var attribute))
{
output.Attributes.Remove(attribute);
}
output.Attributes.Add("data-sc-object", null);
return(Task.FromResult(true));
}