Widgets / Restore search state

[fxp]

Currently only some URL parameters (eg. any=corine) could be used to populate the search form on application startup. Instead of that, it's better to make the search form stateful and use Ext.state.Provider to be able to restore the state of the application.

In order to be able to restore search state create a SearchFormPanel widget.

State must be saved:

• on search
• on reset

State consists of saving:

• all search form fields values (including spatial filter)
• search status (triggered or not)

This state could be use with a GeoExt permalink provider to display current search permalink:

            // set a permalink provider
            permalinkProvider = new GeoExt.state.PermalinkProvider({encodeType: false});
            Ext.state.Manager.setProvider(permalinkProvider);
            // update link when state chnages
            var onStatechange = function(provider) {
                var l = provider.getLink();
                Ext.get("permalink").update("<a href=" + l + ">" + l + "</a>");
            };
            permalinkProvider.on({statechange: onStatechange});
            

[fxp]

Committed revision 9092. Committed revision 9093.