This doesn't preload the images, but it is a simple way to do a Mouseover.
You could easily add a header contributor within the constructor of this
class that outputs some javascript to preload the images.
public class MouseoverImage extends Image {
private static final long serialVersionUID = 1L;
private final ResourceReference mImage;
private final ResourceReference mMouseoverImage;
public MouseoverImage(String id, ResourceReference image, ResourceReference
mouseoverImage) {
super(id, image);
mImage = image;
mMouseoverImage = mouseoverImage;
add(new AttributeModifier("onmouseover", null, true, new
LoadableDetachableModel<String>() {
private static final long serialVersionUID = 1L;
@Override
protected String load() {
return "this.src='" + urlFor(mMouseoverImage) + "';";
}
}));
add(new AttributeModifier("onmouseout", null, true, new
LoadableDetachableModel<String>() {
private static final long serialVersionUID = 1L;
@Override
protected String load() {
return "this.src='" + urlFor(mImage) + "';";
}
}));
}
}
--
Jeremy Thomerson
http://www.wickettraining.com
On Wed, Sep 24, 2008 at 2:04 AM, Tim Squires <[EMAIL PROTECTED]> wrote:
> Thanks Alastair, that's a good idea. AjaxEventBehavior would give the
> effect but with a round trip to the server. It would be nice to have a
> javascript only onmouseover where the images are pre-loaded.
>
> I'm currently using the wicketstuff-dojo onmouseover-highlight, which is
> good enough for now.
>
>
> http://wicketstuff.org/wicketdojo13/?wicket:bookmarkablePage=%3Aorg.wicketstuff.dojo.examples.lfx.DojoFXTestPage
>
> Thanks again,
> Tim
>
> > Have a look at AjaxEventBehavior. You can either combine this with an
> > Image
> > component or add an AttributeModifier and manually tweak the <img>'s src
> > attribute.
> >
> > Alastair
> >
> > 2008/9/19 Tim Squires <[EMAIL PROTECTED]>
> >
> >> Hi All,
> >>
> >> Before I go and write my own component to change the src of an img
> >> onouseover, I just wanted to make sure that there is no standard
> >> component. I don't want to re-invent the wheel.
> >>
> >> Is there a standard component for changing the Image or ImageButton
> >> image
> >> onmouseover?
> >>
> >> Thanks,
> >> Tim
> >>
> >>
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>
>
>
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