/// <summary>Called when this element got removed from the DOM.</summary>
internal override void RemovedFromDOM()
{
Css.ReflowDocument reflowDocument = document as Css.ReflowDocument;
if (reflowDocument.AttributeIndex != null)
{
// Remove this from the DOM attribute cache:
reflowDocument.RemoveCachedElement(this);
}
// Remove handler:
// OnRemovedFromDOM();
// Let the style know we went offscreen:
RenderableData renderable = RenderData;
renderable.WentOffScreen();
// Apply to all virtual elements:
VirtualElements virts = renderable.Virtuals;
if (virts != null)
{
foreach (KeyValuePair <int, Node> kvp in virts.Elements)
{
// Remove it:
kvp.Value.RemovedFromDOM();
}
}
base.RemovedFromDOM();
// Request a layout:
reflowDocument.RequestLayout();
}
/// <summary>Called when this element got added to the DOM.</summary>
internal override void AddedToDOM()
{
Css.ReflowDocument doc = document as Css.ReflowDocument;
if (doc != null)
{
if (doc.AttributeIndex != null)
{
// Index element if needed:
AddToAttributeLookups();
}
// Make sure the stylesheet is present:
doc.RequireStyleSheet(this);
}
// Update its css by telling it the parent changed.
// This affects inherit, height/width etc.
Style.Computed.ParentChanged();
if (doc != null)
{
// Request a layout:
doc.RequestLayout();
}
}