public static TNode AsNode <TNode>(this INodeConvertible <TNode> e)
//where TNode : INode
// we are talking about dom nodes
where TNode : IHTMLElement
{
if (e == null)
{
return(null);
}
// will this work?
// jsc needs to maintain a dispatch vtable for all native objects for which we want to add and extend interfaces.
var xWebGLRenderingContext = e as ScriptCoreLib.JavaScript.WebGL.WebGLRenderingContext;
if (xWebGLRenderingContext != null)
{
//return xWebGLRenderingContext.InternalAsNode();
// hack. inline that method for now..
return((TNode)(IHTMLElement)xWebGLRenderingContext.canvas);
}
var n = e.as_INode();
if (n != null)
{
return((TNode)n);
}
return(e.InternalAsNode());
}
/// <summary>
/// detaches the node from dom; should be renamed to Orphanize
/// </summary>
//[System.ComponentModel.EditorBrowsable(System.ComponentModel.EditorBrowsableState.Never)
//, ObsoleteAttribute("", false)
//]
//public static T Dispose<T>(this T e)
// where T : INode
//{
// return e.Orphanize();
//}
public static void Clear(this INodeConvertible <IHTMLElement> ee)
{
var e = ee.AsNode();
var p = e.firstChild;
while (p != null)
{
e.removeChild(p);
p = e.firstChild;
}
}
public static void ReplaceWith(this INodeConvertible <IHTMLElement> ee, INodeConvertible <IHTMLElement> evalue)
{
// unless its from vb
// then it could be just a number coming in...
// Z:\jsc.svn\examples\javascript\vb\LEST97\LEST97\Application.vb
var e = ee.AsNode();
var value = evalue.AsNode();
// http://msdn.microsoft.com/en-us/library/system.xml.linq.xnode.replacewith.aspx
if (e.parentNode == null)
{
return;
}
// tested by
// X:\jsc.svn\examples\javascript\appengine\RemainingMillisExperiment\RemainingMillisExperiment\Application.cs
// X:\jsc.svn\examples\javascript\svg\SVGNavigationTiming\SVGNavigationTiming\Application.cs
var old = e.attributes.Select(x => new { x.name, x.value }).ToArray();
var old_id = ((IHTMLElement)e).id;
e.parentNode.replaceChild(value, e);
// merge attributes
foreach (var item in old)
{
if (!value.hasAttribute(item.name))
{
value.setAttribute(item.name, item.value);
}
}
if (!string.IsNullOrEmpty(old_id))
{
//((IHTMLElement)value).id = old_id;
// we just swapped out id's. make the old element forget its id
e.id = "";
}
}
public static IHTMLCanvas AsCanvas(this INodeConvertible <IHTMLDiv> l)
{
// X:\jsc.svn\examples\javascript\canvas\AsCanvasExperiment\AsCanvasExperiment\Application.cs
return((IHTMLCanvas)l.AsNode());
}
public static IEnumerable <IHTMLImage> ImageElements(this INodeConvertible <IHTMLElement> e)
{
return(e.AsNode().querySelectorAll(IHTMLElement.HTMLElementEnum.img).Select(k => (IHTMLImage)k));
}
public static IEnumerable <IHTMLAudio> AudioElements(this INodeConvertible <IHTMLElement> e)
{
return(e.AsNode().querySelectorAll(IHTMLElement.HTMLElementEnum.audio).Select(k => (IHTMLAudio)k));
}
