/// <summary>
/// Extract all style properties of the element
/// </summary>
public static IDictionary <String, String> Css(this HElement element)
{
String style = element.Attr("style");
var result = new Dictionary <String, String>(StringComparer.OrdinalIgnoreCase);
if (!String.IsNullOrWhiteSpace(style))
{
// Split style
String[] parts = style.Split(new Char[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
foreach (var part in parts)
{
String name, value;
int p = part.IndexOf('=');
if (p < 0)
{
name = part;
value = String.Empty;
}
else
{
name = part.Substring(0, p);
value = part.Substring(p + 1);
}
result[ConvertCamelNameToStyleName(name)] = value;
}
}
return(result);
}
/// <summary>
/// Set one or more attributes from a POCO objet for the element.
/// </summary>
public static HElement Attr(this HElement element, Object attributes)
{
if (element != null && attributes != null)
{
foreach (var member in attributes.GetType().GetMembers().Where(m => m is PropertyInfo || m is FieldInfo))
{
String mName = member.Name.Replace("_", "-");
if (member is PropertyInfo)
{
element.Attr(mName, Convert.ToString(((PropertyInfo)member).GetValue(attributes, null)));
}
else if (member is FieldInfo)
{
element.Attr(mName, Convert.ToString(((FieldInfo)member).GetValue(attributes)));
}
}
}
return(element);
}
/// <summary>
/// Apply style to an element
/// </summary>
static void SetStyle(HElement element, IDictionary <String, String> properties)
{
if (element != null && properties != null)
{
element.Attr(
"style",
String.Join(
";",
properties
.Where(kvp => !String.IsNullOrWhiteSpace(kvp.Value))
.Select(kvp => String.Concat(kvp.Key, "=", kvp.Value))
)
);
}
}
/// <summary>
/// Remove a list of data values to an element
/// </summary>
public static HElement RemoveData(this HElement element, params String[] keys)
{
if (element != null)
{
// Build the key list from the context
if (keys != null && keys.Length > 0)
{
// Convert all keys to data keys
keys = keys.Select(k => MakeDataKey(k)).ToArray();
}
else
{
// Extract all data keys
keys = element.Attributes().Where(attr => attr.Name.StartsWith("data-", StringComparison.OrdinalIgnoreCase)).Select(attr => attr.Name).ToArray();
}
foreach (var key in keys)
{
element.Attr(key, null);
}
}
return(element);
}
/// <summary>
/// Set a data value to an element
/// </summary>
public static HElement Data(this HElement element, String key, String value)
{
return(element.Attr(MakeDataKey(key), value));
}
/// <summary>
/// Retrieve a data value from an element
/// </summary>
public static String Data(this HElement element, String key)
{
return(element.Attr(MakeDataKey(key)));
}