javaswinghtmldocumentclass

javax.swing.text.html.HTMLDocument: how do I find a html image map in a document?

I'm trying to find a html map in a HTMLDocument:

<html>
<map name="imagemap"></map>
</html>

With hdoc my HTMLDocument, I tried the following to get the map but it keeps returning null:

hdoc.getElement(hdoc.getDefaultRootElement(), HTML.Attribute.NAME, "imagemap")

Am I doing something wrong? How do I get the map?

Solution

  • You can't get the <map> nodes with getElement. They all get deleted by the HTML interpreter, even those in use.

    Instead, use

    ((Hashtable) hdoc.getDocumentProperties().get("__MAP__")).get("#imagemap");

    Unfortunately, the Map you get from this is a package-private class, so you can't use the data unless you do some reflection.