Hi Benoît,
thanks for the report. This really looks like a bug:
http://bugzilla.qooxdoo.org/show_bug.cgi?id=3151
I'll take care of it tomorrow.
Best,
Martin
benco wrote:
>
> Hello,
>
> I'm using the binding features on trees with delegate options in order to
> manage specific models (PS: thanks Martin for your comment about the bug
> 2632 - I didn't catch directly how to use the delegate options (great
> feature by the way :-) ).
>
> I'm not sure if it is a bug - maybe I'm completely mistaken - but the
> following code seems not work :
>
> var tree = new qx.ui.tree.Tree();
> tree.controller = new qx.data.controller.Tree(null,tree);
>
> var model = qx.data.marshal.Json.createModel(datas); // datas = js object
>
> var delegate =
> {
> createItem: function()
> {
> var treeItem = new qx.ui.tree.TreeFolder();
> treeItem.setUserData('homepage',new qx.ui.basic.Image());
> treeItem.addWidget(treeItem.getUserData('homepage'));
> treeItem.addLabel("");
> treeItem.addWidget(new qx.ui.core.Spacer(), {flex: 1});
> treeItem.setUserData('public',new qx.ui.basic.Image());
> treeItem.addWidget(treeItem.getUserData('public'));
> treeItem.setUserData('in_menu',new qx.ui.basic.Image());
> treeItem.addWidget(treeItem.getUserData('in_menu'));
> treeItem.setUserData('translated',new qx.ui.basic.Image());
> treeItem.addWidget(treeItem.getUserData('translated'));
> treeItem.setOpen(true);
>
> return treeItem;
> },
> configureItem: function(item)
> {
> item.getUserData('public').setWidth(80);
> item.getUserData('in_menu').setWidth(70);
> item.getUserData('translated').setWidth(40);
> }
> };
>
> tree.controller.setDelegate(delegate);
> tree.controller.setModel(model);
>
> ...
>
>
> It throws an error at runtime because when _setConfigureItem() is called,
> it is looking for the root of the tree but it of course doesn't exists yet
> at the first step: the error is "this.getTarget().getRoot() is null".
>
> I can manage it by adding a dummy root to my tree at init stage using the
> createItem function but maybe it would be more intuitive to modify the
> _setConfigureItem() function by setting the targeted treeItem as root of
> the tree if it doesn't yet exists ?
>
> Regards,
>
> Benoît.
>
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