It does turn out to be quite tricky I find. I tried filling in this code
with:
var gnode =
this.getNodeByText(this.getRootNode(),records.data.layer.group);
if (gnode && gnode.childNodes.length == 1) {
gnode.remove();
}
which was too simple minded. onLayerremoved is called BEFORE the layer
is actually removed (hence
the length==1) and node removal then creates oddness by which layers are
not then actually removed.
It would seem to work better if node was marked for delete but then I
couldnt find an event to do the actual clean up.
In meantime I have "almost works" code in my main code of:
for (var i = 0; i<tree.getRootNode().childNodes.length; i++) {
if (tree.getRootNode().childNodes[i].childNodes.length==0) {
tree.getRootNode().childNodes[i].remove();
}
}
but this only works if I have only one level of grouping. If you can
give me any pointers as to a better way to proceed, I am very willing to
try them out.
--
Phil Scadden, Senior Scientist GNS Science Ltd 764 Cumberland St,
Private Bag 1930, Dunedin, New Zealand Ph +64 3 4799663, fax +64 3 477 5232
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