public static void Run()
{
// ExStart:MutationObserver
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_Data();
// The MutationObserver interface provides the ability to watch for changes being made to the DOM tree.
// Create an empty document
using (var document = new HTMLDocument())
{
// Create a WaitHandle for purpose described below
var @event = new ManualResetEvent(false);
// Create an observer instance
var observer = new MutationObserver((mutations, mutationObserver) =>
{
var mutation = mutations[0];
Console.WriteLine(mutation.AddedNodes[0]);
@event.Set();
});
// Options for the observer (which mutations to observe)
var config = new MutationObserverInit
{
ChildList = true,
Subtree = true
};
// Start observing the target node
observer.Observe(document.DocumentElement, config);
// An example of user modifications
var p = document.CreateElement("p");
document.DocumentElement.AppendChild(p);
// Since, mutations are working in the async mode you should wait a bit. We use WaitHandle for this purpose.
@event.WaitOne();
// Later, you can stop observing
observer.Disconnect();
}
// ExEnd:MutationObserver
}
public RegisteredObserver(MutationObserver observer, MutationObserverInit options)
{
this.observer = observer;
this.options = options;
}
public TransientRegisteredObserver(RegisteredObserver source, MutationObserver observer, MutationObserverInit options) : base(observer, options)
{
this.source = source;
}
public void Observe(Node target, MutationObserverInit options)
{
//TODO
}
