I want to add several "collapsable" ListViews: a listview paired with a
button to toggle showing either the full list or the fist N elements.
But each listview's populateItem and corresponding markup will be different.
If I write a Wicket Panel, I'm not only "locked-in" to one set of markup.
I must also new up the ListView in the Panel's constructor, which means
I can't vary the code in ListView's overridden anonymous-class
populateItem, as I could if I passed in ListView instance.
MyPanel() {
add( new ListView("someid") {
void populateItem( ListItem i ) {
i.add( new Label("foo") ...
If I instead pass in the ListView, then any user of my Panel class can
pass in any instance or anonymous instance of ListView -- but my Panel
can't call listView.setId() on the already constructed ListView to make
its id match the id in the Panel's markup.
This seems like a simple thing, make two components collaborators and
make that reusable, but the only way to do it seems to be to write a
WebMarkupContainer-derived class, and pass in the ids, rather than
writing a Panel.
is there a simpler way I'm not seeing?
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