/// <summary>
/// Creates a new selector parser using the different factories.
/// </summary>
internal CssSelectorParser(IBrowsingContext context)
{
if (context == null)
{
context = BrowsingContext.NewFrom <ICssSelectorParser>(this);
}
_attribute = context.GetFactory <IAttributeSelectorFactory>();
_pseudoClass = context.GetFactory <IPseudoClassSelectorFactory>();
_pseudoElement = context.GetFactory <IPseudoElementSelectorFactory>();
}
public Event CreateEvent(String type)
{
var factory = _context.GetFactory <IEventFactory>();
var ev = factory.Create(type);
if (ev == null)
{
throw new DomException(DomError.NotSupported);
}
return(ev);
}
internal static ICssProperty[] CreateLonghands(this IBrowsingContext context, ICssProperty shorthand)
{
var factory = context.GetFactory <IDeclarationFactory>();
var info = factory.Create(shorthand.Name);
var values = info.Expand(factory, shorthand.RawValue);
return(factory.CreateProperties(info.Longhands, values, shorthand.IsImportant));
}
protected override async Task ProcessResponseAsync(IResponse response)
{
var context = new BrowsingContext(_context, Sandboxes.None);
var encoding = _context.GetDefaultEncoding();
var options = new CreateDocumentOptions(response, encoding, _parentDocument);
var factory = _context.GetFactory <IDocumentFactory>();
ChildDocument = await factory.CreateAsync(context, options, CancellationToken.None).ConfigureAwait(false);
}
/// <summary>
/// Opens a new document created from the response asynchronously in
/// the given context.
/// </summary>
/// <param name="context">The browsing context to use.</param>
/// <param name="response">The response to examine.</param>
/// <param name="cancel">The cancellation token.</param>
/// <returns>The task that creates the document.</returns>
public static Task <IDocument> OpenAsync(this IBrowsingContext context, IResponse response, CancellationToken cancel = default)
{
response = response ?? throw new ArgumentNullException(nameof(response));
context = context ?? BrowsingContext.New();
var encoding = context.GetDefaultEncoding();
var factory = context.GetFactory <IDocumentFactory>();
var options = new CreateDocumentOptions(response, encoding);
return(factory.CreateAsync(context, options, cancel));
}
internal static ICssProperty CreateShorthand(this IBrowsingContext context, String name, ICssValue[] longhands, Boolean important)
{
var factory = context.GetFactory <IDeclarationFactory>();
var info = factory.Create(name);
var value = info.Collapse(factory, longhands);
if (context.AllowsDeclaration(info))
{
return(new CssProperty(name, info.Converter, info.Flags, value, important));
}
return(null);
}
internal static DeclarationInfo GetDeclarationInfo(this IBrowsingContext context, String propertyName)
{
var factory = context.GetFactory <IDeclarationFactory>();
return(factory.Create(propertyName));
}