protected override bool NavigateToUrl(NSUrl url)
{
if (url == null)
{
throw new ArgumentNullException(nameof(url));
}
// Try to handle uri, if it can't be handled, fall back to IOS his own handler.
return(!RendererHelper.HandleUriClick(Element, url.AbsoluteString));
}
public static void HandleLinkTap(this UILabel control, HtmlLabel element)
{
void TapHandler(UITapGestureRecognizer tap)
{
var detectedUrl = DetectTappedUrl(tap, (UILabel)tap.View);
RendererHelper.HandleUriClick(element, detectedUrl);
}
var tapGesture = new UITapGestureRecognizer(TapHandler);
control.AddGestureRecognizer(tapGesture);
control.UserInteractionEnabled = true;
}
public override void OnClick(Android.Views.View widget)
{
RendererHelper.HandleUriClick(_label, _span.URL);
}
protected override bool NavigateToUrl(NSUrl url)
{
// Try to handle uri, if it can't be handled, fall back to IOS his own handler.
return(!RendererHelper.HandleUriClick(Element, url.AbsoluteString));
}
private static void ParseText(XElement element, InlineCollection inlines, HtmlLabel label)
{
if (element == null)
{
return;
}
InlineCollection currentInlines = inlines;
var elementName = element.Name.ToString().ToUpperInvariant();
switch (elementName)
{
case _elementA:
var link = new Hyperlink();
XAttribute href = element.Attribute("href");
var unescapedUri = Uri.UnescapeDataString(href?.Value);
if (href != null)
{
try
{
link.NavigateUri = new Uri(unescapedUri);
}
catch (FormatException) { /* href is not valid */ }
}
link.Click += (sender, e) =>
{
sender.NavigateUri = null;
RendererHelper.HandleUriClick(label, unescapedUri);
};
if (!label.LinkColor.IsDefault)
{
link.Foreground = label.LinkColor.ToBrush();
}
if (!label.UnderlineText)
{
link.UnderlineStyle = UnderlineStyle.None;
}
inlines.Add(link);
currentInlines = link.Inlines;
break;
case _elementB:
case _elementStrong:
var bold = new Bold();
inlines.Add(bold);
currentInlines = bold.Inlines;
break;
case _elementI:
case _elementEm:
var italic = new Italic();
inlines.Add(italic);
currentInlines = italic.Inlines;
break;
case _elementU:
var underline = new Underline();
inlines.Add(underline);
currentInlines = underline.Inlines;
break;
case _elementBr:
inlines.Add(new LineBreak());
break;
case _elementP:
// Add two line breaks, one for the current text and the second for the gap.
if (AddLineBreakIfNeeded(inlines))
{
inlines.Add(new LineBreak());
}
var paragraphSpan = new Span();
inlines.Add(paragraphSpan);
currentInlines = paragraphSpan.Inlines;
break;
case _elementLi:
inlines.Add(new LineBreak());
inlines.Add(new Run {
Text = " • "
});
break;
case _elementUl:
case _elementDiv:
_ = AddLineBreakIfNeeded(inlines);
var divSpan = new Span();
inlines.Add(divSpan);
currentInlines = divSpan.Inlines;
break;
}
foreach (XNode node in element.Nodes())
{
if (node is XText textElement)
{
currentInlines.Add(new Run {
Text = textElement.Value
});
}
else
{
ParseText(node as XElement, currentInlines, label);
}
}
// Add newlines for paragraph tags
if (elementName == "ElementP")
{
currentInlines.Add(new LineBreak());
}
}