protected override bool CanExecuteCore(SelectedItemCollection selection)
{
Host hostAncestor = selection.HostAncestorFromConnection;
Pool poolAncestor = selection.PooAncestorFromConnection;
if ((poolAncestor != null || hostAncestor != null) && //CA-61207: this check ensures there's no cross-pool selection
(selection.FirstIs <Pool>() || selection.FirstIs <Host>() || selection.FirstIsRealVM || selection.FirstIs <VM_appliance>()))
{
if (selection.AllItemsAre <VM>())
{
return(selection.AtLeastOneXenObjectCan <VM>(CanExportVm));
}
if (selection.AllItemsAre <VM_appliance>())
{
if (selection.Count != 1)
{
return(false);
}
var appliance = ((VM_appliance)selection.FirstAsXenObject);
return(appliance.VMs.TrueForAll(vmRef =>
{
var vm = appliance.Connection.Resolve(vmRef);
return vm != null &&
CanExportVm(vm);
}));
}
if ((hostAncestor != null && hostAncestor.enabled && hostAncestor.IsLive && selection[0].Connection.IsConnected) ||
(poolAncestor != null && Helpers.PoolHasEnabledHosts(poolAncestor)))
{
var vms = selection.FirstAsXenObject.Connection.Cache.VMs.Where(vm => vm.is_a_real_vm && CanExportVm(vm) && vm.Show(Properties.Settings.Default.ShowHiddenVMs)).ToList();
if (vms.Count > 0)
{
return(vms.Any(CanExportVm));
}
}
}
return(false);
}
