public void Update(IActionContext context, ref ActionPresentation presentation)
{
presentation.Visible = presentation.Enabled =
(context.Instance == Core.LeftSidebar.DefaultViewPane) &&
(context.SelectedResources.Count == 1) &&
(context.SelectedResources[0].Type == FilterManagerProps.ViewResName) &&
(context.SelectedResources[0].GetStringProp("DeepName") == FilterManagerProps.ViewDeletedItemsDeepName);
// Resources of some types can not be deleted permanently, e.g.
// Contacts and IM conversations. Thus this menu must be forbidden
// for the view in the corresponding tabs.
if (presentation.Visible)
{
string[] types = Core.TabManager.CurrentTab.GetResourceTypes();
// "All Resources" tab always returns NULL
if (types != null)
{
bool canDelete = false;
foreach (string type in types)
{
if (type.Length > 0 && Core.ResourceStore.ResourceTypes.Exist(type))
{
IResourceDeleter deleter = Core.PluginLoader.GetResourceDeleter(type);
if (deleter != null)
{
canDelete = canDelete || deleter.CanDeleteResource(null, true);
}
}
}
presentation.Visible = canDelete;
}
}
}
private static bool AllHaveEnabledDeleters(IResourceList selectedResources)
{
if (selectedResources.Count == 0)
{
return(false);
}
foreach (IResource res in selectedResources.ValidResources)
{
IResourceDeleter deleter = Core.PluginLoader.GetResourceDeleter(res.Type);
if (deleter == null)
{
return(false);
}
if (!deleter.CanDeleteResource(res, res.HasProp(Core.Props.IsDeleted)))
{
return(false);
}
}
return(true);
}
private void ShowPaneImpl()
{
if (!Core.UserInterfaceAP.IsOwnerThread)
{
Core.UserInterfaceAP.QueueJob(new MethodInvoker(ShowPaneImpl));
return;
}
_deletersListView.Nodes.Clear();
IResourceList resTypes = Core.ResourceStore.GetAllResources("ResourceType");
foreach (IResource resType in resTypes.ValidResources)
{
if (resType.GetIntProp("Internal") != 0)
{
continue;
}
string type = resType.GetPropText(Core.Props.Name);
if (type.Length > 0 && Core.ResourceStore.ResourceTypes.Exist(type))
{
IResourceDeleter deleter = Core.PluginLoader.GetResourceDeleter(type);
if (deleter != null)
{
_deletersListView.Nodes.Add(resType);
bool canDelete = deleter.CanDeleteResource(null, false);
if (!canDelete)
{
_confirmDeleteColumn.SetItemCheckState(resType, CheckBoxState.Grayed | CheckBoxState.Unchecked);
}
else
{
_confirmDeleteColumn.SetItemCheckState(resType,
ResourceDeleterOptions.GetConfirmDeleteToRecycleBin(type) ? CheckBoxState.Checked : CheckBoxState.Unchecked);
}
bool canDeletePermanently = deleter.CanDeleteResource(null, true);
if (!canDeletePermanently)
{
_confirmPermanentDeleteColumn.SetItemCheckState(resType, CheckBoxState.Grayed | CheckBoxState.Unchecked);
}
else
{
_confirmPermanentDeleteColumn.SetItemCheckState(resType,
ResourceDeleterOptions.GetConfirmDeletePermanently(type) ? CheckBoxState.Checked : CheckBoxState.Unchecked);
}
if (!deleter.CanIgnoreRecyclebin())
{
_alwaysDeletePermanentlyColumn.SetItemCheckState(resType, CheckBoxState.Grayed | CheckBoxState.Unchecked);
}
else
if (canDelete != canDeletePermanently)
{
_alwaysDeletePermanentlyColumn.SetItemCheckState(resType, CheckBoxState.Grayed |
(canDelete ? CheckBoxState.Unchecked : CheckBoxState.Checked));
}
else
{
_alwaysDeletePermanentlyColumn.SetItemCheckState(resType,
ResourceDeleterOptions.GetDeleteAlwaysPermanently(type) ? CheckBoxState.Checked : CheckBoxState.Unchecked);
}
}
}
}
}