/// <summary>
/// Apply all filters to the specified INewsItem.
/// </summary>
public bool Apply(ThreadedListViewItem lvItem)
{
INewsItem item = lvItem.Key as INewsItem;
if (item == null)
{
return(false);
}
bool anyApplied = false;
foreach (string key in filters.Keys)
{
INewsItemFilter filter = filters[key];
if (filter != null && filter.Match(item))
{
if (!CancelFilterAction(key))
{
filter.ApplyAction(item, lvItem);
anyApplied = true;
}
}
}
return(anyApplied);
}
/// <summary>
/// Add a new filter to the internal collection. If the filter exists,
/// it will be replaced by the new one.
/// </summary>
/// <param name="key">Filter Identifier</param>
/// <param name="newFilter">A INewsItemFilter instance</param>
/// <returns>The INewsItemFilter instance</returns>
public INewsItemFilter Add(string key, INewsItemFilter newFilter)
{
if (key == null || newFilter == null)
{
throw new ArgumentException("Parameter cannot be null", (newFilter == null ? "key" : "newFilter"));
}
if (filters.ContainsKey(key))
{
filters.Remove(key);
}
filters.Add(key, newFilter);
return(newFilter);
}
/// <summary>
/// Apply a specific filter to the specified INewsItem.
/// </summary>
/// <param name="key"></param>
/// <param name="item">The INewsItem instance</param>
public bool Apply(string key, INewsItem item)
{
bool anyApplied = false;
if (!filters.ContainsKey(key))
{
return(anyApplied);
}
INewsItemFilter filter = filters[key];
if (filter.Match(item))
{
if (!CancelFilterAction(key))
{
filter.ApplyAction(item, null);
anyApplied = true;
}
}
return(anyApplied);
}
