What version of Batik are you using?
There was a bug dealing with the dynamic addition of event handlers in "old" versions of Batik (however I think they were fixed in 1.5).
Is it possible that the document has no 'dynamic' features prior to your adding the attributes. If so Batik will build the rendering tree for static display only. You can change this by calling "canvas.setDocumentState(ALWAYS_DYNAMIC)" _prior_ to loading the document.
Also you should essentially never touch the DOM outside of
the update manager thread (one of the very few/only(?) exceptions
is that it is actually ok to touch it in response to most of the
canvas callbacks, like buildCompleted, - probably not render/update completed).
Verelst Jef wrote:
Hello,
I am trying to add event attributes (onclick, onmouseover, ...) to an SVG. The code I use for it is this :
Element el = this.svgDoc.getElementById(id); if(el != null)
{
el.setAttributeNS(null,attr,val);
}
I get different results depending on the moment I call the code : when called between loading and building, everything
works fine. The attribute is added and the event is attached (I can change the value of the attribute later and the event
responds correctly). However, if I call this code after the rendering completed (which unfortunately is the normal place
where my program gets to know the values of the attribute), the attribute is added (I can get the value) but it does not
react to the mouse event...
Besides the point of time where the setAttribute is called, I also see that it is called in another thread. The first time I
call it in the [AWT-EventQueue-0] thread (who sends the update messages concerning the loading and such). The second
time, I'm in my programs thread.
Can anybody give me a hint on what is going wrong. If it is the thread, is there a way of executing the setAttribute in
that thread (like it is with the update managers thread, by the way, executing the add in the [RunnableQueue-0] thread
does not solve the problem).
Thank you for your support.
Jef
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