public void OnSendNavigating_Navigating_IsInvoked()
{
// Arrange
var label = new HtmlLabel();
var url = Guid.NewGuid().ToString();
var source = new UrlWebViewSource();
var expectedArgs = new WebNavigatingEventArgs(WebNavigationEvent.Forward, source, url);
label.Navigating += LabelNavigating;
WebNavigatingEventArgs actualArgs = null;
object actualSender = null;
void LabelNavigating(object sender, WebNavigatingEventArgs e)
{
actualSender = sender;
actualArgs = e;
}
// Act
label.SendNavigating(expectedArgs);
// Assert
Assert.Equal(expectedArgs, actualArgs);
Assert.Equal(label, actualSender);
}
public override void OnClick(global::Android.Views.View widget)
{
var args = new WebNavigatingEventArgs(WebNavigationEvent.NewPage, new UrlWebViewSource {
Url = _span.URL
}, _span.URL);
_label.SendNavigating(args);
if (args.Cancel)
{
return;
}
Device.OpenUri(new Uri(_span.URL));
_label.SendNavigated(args);
}
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");
if (href != null)
{
try
{
link.NavigateUri = new Uri(href.Value);
}
catch (FormatException) { /* href is not valid */ }
}
link.Click += (sender, e) =>
{
sender.NavigateUri = null;
if (href == null)
{
return;
}
var args = new WebNavigatingEventArgs(WebNavigationEvent.NewPage, new UrlWebViewSource {
Url = href.Value
}, href.Value);
label.SendNavigating(args);
if (args.Cancel)
{
return;
}
Device.OpenUri(new Uri(href.Value));
label.SendNavigated(args);
};
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());
}
}