/// <summary>Removes the given element from any attribute caches. You must check AttributesCached first.</summary>
public void RemoveCachedElement(Element ele)
{
List <string> toRemove = null;
foreach (KeyValuePair <string, AttributeLookup> kvp in AttributeIndex)
{
string attribute = kvp.Key;
AttributeLookup lookup = kvp.Value;
// Got this attribute?
string value = ele[attribute];
if (value == null)
{
continue;
}
// Remove it:
if (lookup.Remove(value, ele))
{
// Remove the lookup too!
if (toRemove == null)
{
toRemove = new List <string>();
}
toRemove.Add(attribute);
}
}
if (toRemove == null)
{
return;
}
if (toRemove.Count == AttributeIndex.Count)
{
// Remove the whole thing:
AttributeIndex = null;
return;
}
for (int i = toRemove.Count - 1; i >= 0; i--)
{
// Remove from attrib index:
AttributeIndex.Remove(toRemove[i]);
}
}
/// <summary>Starts indexing the given attribute right now.</summary>
public void StartAttributeIndex(string attrib)
{
// Create the lookup:
AttributeLookup lookup = new AttributeLookup();
// Index:
html.AddToAttributeLookup(attrib, lookup);
if (lookup.Count == 0)
{
// Well.. that was pointless! Nothing to actually index!
return;
}
if (AttributeIndex == null)
{
// Create the index now:
AttributeIndex = new Dictionary <string, AttributeLookup>();
}
AttributeIndex[attrib] = lookup;
}
/// <summary>Adds this element to the given attribute lookup.</summary>
public void AddToAttributeLookup(string attrib, AttributeLookup lookup)
{
// Got the attribute?
string value;
if (Properties.TryGetValue(attrib, out value))
{
lookup.Add(value, this);
}
// Any kids got it?
if (ChildNodes == null)
{
return;
}
// Add each one..
for (int i = 0; i < ChildNodes.Count; i++)
{
// Add it:
ChildNodes[i].AddToAttributeLookup(attrib, lookup);
}
}
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//--------------------------------------