//
// methods
//
#region public IPDFComponent GetComponent(IContentParser parser, string name)
/// <summary>
/// Returns a new component for the parser based on the specified tag name.
/// </summary>
/// <param name="parser"></param>
/// <param name="name"></param>
/// <returns>The instaniated component or null if the name is not recognised</returns>
public IPDFComponent GetComponent(IHtmlContentParser parser, string name, out HtmlComponentType type)
{
IPDFComponent proxy = null;
IParserComponentFactory innerfact;
if (null != _last && _lastName == name)
{
proxy = _last.GetComponent(parser, name, out type);
}
else if (_knowntags.TryGetValue(name, out innerfact))
{
_last = innerfact;
_lastName = name;
proxy = innerfact.GetComponent(parser, name, out type);
}
else
{
_last = null;
_lastName = null;
type = HtmlComponentType.Unknown;
proxy = GetUnknownComponent(parser, name);
}
if (proxy is Component)
{
((Component)proxy).Tag = name;
}
return(proxy);
}
/// <summary>
/// Sets the parsed value provided on an attribute with the specified name to the parsed component of the provided name
/// </summary>
/// <param name="parser"></param>
/// <param name="parsed"></param>
/// <param name="componentName"></param>
/// <param name="attrName"></param>
/// <param name="attrValue"></param>
public void SetAttribute(IHtmlContentParser parser, IPDFComponent parsed, string componentName, string attrName, string attrValue)
{
IParserComponentFactory innerfact;
//Quick check on the last one used - as this generally follows the component creation
if (null != _last && _lastName == componentName)
{
_last.SetAttribute(parser, parsed, componentName, attrName, attrValue);
}
else if (_knowntags.TryGetValue(componentName, out innerfact))
{
_last = innerfact;
_lastName = componentName;
innerfact.SetAttribute(parser, parsed, componentName, attrName, attrValue);
}
else
{
//Skip the attribute
}
}
/// <summary>
/// Returns true if the component is a container of other components or text
/// </summary>
/// <param name="parser"></param>
/// <param name="component"></param>
/// <param name="name"></param>
/// <returns></returns>
public bool IsContainerComponent(IHtmlContentParser parser, IPDFComponent component, string name)
{
bool container = false;
IParserComponentFactory innerfact;
if (null != _last && _lastName == name)
{
container = _last.IsContainerComponent(parser, component, name);
}
else if (_knowntags.TryGetValue(name, out innerfact))
{
_last = innerfact;
_lastName = name;
container = _last.IsContainerComponent(parser, component, name);
}
else
{
_last = null;
_lastName = null;
container = false;
}
return(container);
}
//
// implementation methods
//
#region protected virtual void Init(string text, IParserComponentFactory factory)
/// <summary>
/// Initializes this instance with the text and factory. Inheritors can override
/// </summary>
/// <param name="text"></param>
/// <param name="factory"></param>
protected virtual void Init(string text, IParserComponentFactory factory, IParserStyleFactory styles, HTMLParserSettings settings)
{
if (null == settings)
{
throw new ArgumentNullException(nameof(settings));
}
if (null == factory)
{
factory = new HTMLParserComponentFactory();
}
if (null == styles)
{
styles = new CSSStyleItemAllParser();
}
_text = text;
_instanceFact = factory;
_settings = settings;
_styleFact = styles;
_shouldlog = null != _settings.Context;
}
//
// implementation methods
//
#region protected virtual void Init(string text, IParserComponentFactory factory)
/// <summary>
/// Initializes this instance with the text and factory. Inheritors can override
/// </summary>
/// <param name="text"></param>
/// <param name="factory"></param>
protected virtual void Init(string text, IParserComponentFactory factory, IParserStyleFactory styles, HTMLParserSettings settings)
{
if (null == factory)
{
factory = new HTMLParserComponentFactory();
}
if (null == styles)
{
styles = new CSSStyleItemAllParser();
}
if (null == settings)
{
settings = new HTMLParserSettings();
}
_text = text;
_instanceFact = factory;
_settings = settings;
_styleFact = styles;
_shouldlog = null != _settings.TraceLog && _settings.TraceLog.ShouldLog(_settings.LogLevel);
}
/// <summary>
/// Creates a new instance of an HTMLParser that will convert the specified text into a series of Components using the component factory.
/// </summary>
/// <param name="text"></param>
/// <param name="componentFactory">The component factory (can be null)</param>
/// <param name="styleFactory">The style value factory (can be null)</param>
/// <param name="settings">The parser settings (can be null)</param>
public HTMLParser(string text, IParserComponentFactory componentFactory, IParserStyleFactory styleFactory, HTMLParserSettings settings)
{
this.Init(text, componentFactory, styleFactory, settings);
}
/// <summary>
/// Retuns a new textual component that represents the text string provided
/// </summary>
/// <param name="parser"></param>
/// <param name="text"></param>
/// <returns></returns>
public virtual IPDFComponent GetTextComponent(IHtmlContentParser parser, string text)
{
_last = null;
_lastName = null;
return(new TextLiteral(text));
}