/// <summary>
/// Removes a style from the document.
/// </summary>
/// <param name="tag">Tag the style belongs to</param>
/// <param name="styles">Style rule that contains the style to be removed</param>
/// <param name="style">Style to be removed</param>
/// <param name="reason">Reason for removal</param>
private void RemoveStyle(IElement tag, ICssStyleDeclaration styles, ICssProperty style, RemoveReason reason)
{
var e = new RemovingStyleEventArgs {
Tag = tag, Style = style, Reason = reason
};
OnRemovingStyle(e);
if (!e.Cancel)
{
styles.RemoveProperty(style.Name);
}
}
/// <summary>
/// 验证规则
/// </summary>
/// <param name="styles"></param>
/// <returns></returns>
protected virtual bool Validate(ICssStyleDeclaration styles)
{
if (styles == null)
{
return(false);
}
var removings = new List <ICssProperty>();
foreach (ICssProperty item in styles)
{
if (!Validate(item))
{
removings.Add(item);
}
}
foreach (var item in removings)
{
styles.RemoveProperty(item.Name);
}
return(styles.Length > 0);
}
/// <summary>
/// Remove a style from the document.
/// </summary>
/// <param name="tag">tag where the style belongs</param>
/// <param name="styles">collection where the style to belongs</param>
/// <param name="style">to be removed</param>
/// <param name="reason">reason why to be removed</param>
private void RemoveStyle(IElement tag, ICssStyleDeclaration styles, ICssProperty style, RemoveReason reason)
{
var e = new RemovingStyleEventArgs { Tag = tag, Style = style, Reason = reason };
OnRemovingStyle(e);
if (!e.Cancel) styles.RemoveProperty(style.Name);
}