private static async void AddHelpButton(SearchControl sc)
{
Menu bar = sc.Child<Menu>(m => m.Name == "menu");
HelpButton helpButton = new HelpButton
{
MainControl = sc,
Margin = new Thickness(4),
IsEnabled = false,
}.Set(DockPanel.DockProperty, Dock.Right);
bar.After(helpButton);
var queryName = sc.QueryName;
helpButton.IsActive = await Server.ReturnAsync((IHelpServer s) => s.HasQueryHelpService(queryName));
helpButton.Checked += async (sender, args) =>
{
var queryHelp = await Server.ReturnAsync((IHelpServer s) => s.GetQueryHelpService(queryName));
SetHelpInfo(sc.Child<Button>(b=>b.Name == "btSearch"), queryHelp.Info);
var listView = sc.Child<ListView>(b => b.Name == "lvResult");
var columns = (from header in listView.Children<SortGridViewColumnHeader>(HelpButton.WhereFlags)
let token = header.RequestColumn.Token
select new { header, token }).ToList();
var external = columns.Extract(t => !(t.token is ColumnToken));
foreach (var t in columns)
{
SetHelpInfo(t.header, queryHelp.Columns.GetOrThrow(((ColumnToken)t.token).Column.Name));
}
if (external.Any())
{
var externalRoutes = external.Select(a => a.token.GetPropertyRoute()).Distinct().ToList();
var dictionary = await Server.ReturnAsync((IHelpServer s) => s.GetPropertyRoutesService(externalRoutes));
foreach (var t in external)
{
SetHelpInfo(t.header, dictionary.TryGetC(t.token.GetPropertyRoute()));
}
}
};
sc.ContextMenuOpened += async cm =>
{
if (helpButton.IsChecked == true && !sc.Implementations.IsByAll)
{
var pairs = (from mi in cm.Items.OfType<MenuItem>()
where mi.Tag is IContextualOperationContext
select new { mi, coc = (IContextualOperationContext)mi.Tag })
.ToList();
var operations = pairs.Select(p=>p.coc.OperationInfo.OperationSymbol).Distinct().ToList();
if(operations.Any())
{
var types = await Task.WhenAll(sc.Implementations.Types.Select(t=> Server.ReturnAsync((IHelpServer s) => s.GetEntityHelpService(t))));
foreach (var p in pairs)
{
SetHelpInfo(p.mi, types.Select(t => t.Operations.TryGetC(p.coc.OperationInfo.OperationSymbol)).NotNull().FirstOrDefault());
}
}
}
};
helpButton.IsEnabled = true;
}
private static async void AddHelpButton(SearchControl sc)
{
Menu bar = sc.Child <Menu>(m => m.Name == "menu");
HelpButton helpButton = new HelpButton
{
MainControl = sc,
Margin = new Thickness(4),
IsEnabled = false,
}.Set(DockPanel.DockProperty, Dock.Right);
bar.After(helpButton);
var queryName = sc.QueryName;
helpButton.IsActive = await Server.ReturnAsync((IHelpServer s) => s.HasQueryHelpService(queryName));
helpButton.Checked += async(sender, args) =>
{
var queryHelp = await Server.ReturnAsync((IHelpServer s) => s.GetQueryHelpService(queryName));
SetHelpInfo(sc.Child <Button>(b => b.Name == "btSearch"), queryHelp.Info);
var listView = sc.Child <ListView>(b => b.Name == "lvResult");
var columns = (from header in listView.Children <SortGridViewColumnHeader>(HelpButton.WhereFlags)
let token = header.RequestColumn.Token
select new { header, token }).ToList();
var external = columns.Extract(t => !(t.token is ColumnToken));
foreach (var t in columns)
{
SetHelpInfo(t.header, queryHelp.Columns.GetOrThrow(((ColumnToken)t.token).Column.Name));
}
if (external.Any())
{
var externalRoutes = external.Select(a => a.token.GetPropertyRoute()).Distinct().ToList();
var dictionary = await Server.ReturnAsync((IHelpServer s) => s.GetPropertyRoutesService(externalRoutes));
foreach (var t in external)
{
SetHelpInfo(t.header, dictionary.TryGetC(t.token.GetPropertyRoute()));
}
}
};
sc.ContextMenuOpened += async cm =>
{
if (helpButton.IsChecked == true && !sc.Implementations.IsByAll)
{
var pairs = (from mi in cm.Items.OfType <MenuItem>()
where mi.Tag is IContextualOperationContext
select new { mi, coc = (IContextualOperationContext)mi.Tag })
.ToList();
var operations = pairs.Select(p => p.coc.OperationInfo.OperationSymbol).Distinct().ToList();
if (operations.Any())
{
var types = await Task.WhenAll(sc.Implementations.Types.Select(t => Server.ReturnAsync((IHelpServer s) => s.GetEntityHelpService(t))));
foreach (var p in pairs)
{
SetHelpInfo(p.mi, types.Select(t => t.Operations.TryGetC(p.coc.OperationInfo.OperationSymbol)).NotNull().FirstOrDefault());
}
}
}
};
helpButton.IsEnabled = true;
}
