[Users] GeoExt LayerContainer with checkbox

[Frans Knibbe]

Thanks for sharing this technique, I was looking for something like this!

But I do see a problem for my needs: The LayerContainer node is expanded 
each time its checkbox is changed. I would like the collapsing and 
expanding of the node to be something entirely separate. I.e., I would 
like to leave it up to the user if (s)he wants the node expanded or not. 
Using the checkbox of the LayerContainer  should not change its 
expanded/collapsed state.

Can someone think of a solution? Just removing node.expand() stops the 
whole thing from working.


On 2010-06-07 22:24, Julien-Samuel Lacroix wrote:
> Hi,
>
> I have a Tree with LayerContainers.I want to have a checkbox beside my
> directory that will allow me check/uncheck all the layers in my
> LayerContainer in a single click.
>
> Here's how I do it. Maybe there's a better way, I may have miss 
> something.
>
> {
>    text: title,
>    layerStore: mapPanel.layers,
>    allowDrag: false,
>    nodeType: 'gx_layercontainer',
>    id: 'layercontainer_'+group,
>    leaf: false,
>    group: group,
>    loader: {
>      filter: function(record) {
>          return record.get('layer').options.group == group;
>      }
>    },
>    checked: false,
>    listeners: {
>      'checkchange' :  function(node, checked)
>      {
>          // If a parent node is unchecked, uncheck all the children
>          if (node.getUI().isChecked()) {
>              node.expand();
>              node.eachChild(function(child){
>                child.ui.toggleCheck(true);
>              });
>          }
>          if (!node.getUI().isChecked())
>          {
>              node.expand();
>              node.eachChild(function(child) {
>                  child.ui.toggleCheck(false);
>              });
>          }
>      }
>    },
> [...snip...]
> }
>
>