bool ShowContextMenu(TextViewContext context, out ContextMenu menu)
{
menu = new ContextMenu();
foreach (var category in entries.OrderBy(c => c.Metadata.Order).GroupBy(c => c.Metadata.Category))
{
bool needSeparatorForCategory = menu.Items.Count > 0;
foreach (var entryPair in category)
{
IContextMenuEntry entry = entryPair.Value;
if (entry.IsVisible(context))
{
if (needSeparatorForCategory)
{
menu.Items.Add(new Separator());
needSeparatorForCategory = false;
}
MenuItem menuItem = new MenuItem();
menuItem.Header = MainWindow.GetResourceString(entryPair.Metadata.Header);
menuItem.InputGestureText = entryPair.Metadata.InputGestureText;
if (!string.IsNullOrEmpty(entryPair.Metadata.Icon))
{
object image = Images.Load(entryPair.Value, entryPair.Metadata.Icon);
if (!(image is Viewbox))
{
image = new Image {
Width = 16,
Height = 16,
Source = (ImageSource)image
};
}
menuItem.Icon = image;
}
if (entryPair.Value.IsEnabled(context))
{
menuItem.Click += delegate { entry.Execute(context); };
}
else
{
menuItem.IsEnabled = false;
}
menu.Items.Add(menuItem);
}
}
}
return(menu.Items.Count > 0);
}
bool ShowContextMenu(TextViewContext context, out IEnumerable <IControl> menuItems)
{
List <IControl> items = new List <IControl>();
foreach (var category in entries.OrderBy(c => c.Metadata.Order).GroupBy(c => c.Metadata.Category))
{
bool needSeparatorForCategory = items.Count > 0;
foreach (var entryPair in category)
{
IContextMenuEntry entry = entryPair.Value;
if (entry.IsVisible(context))
{
if (needSeparatorForCategory)
{
items.Add(new Separator());
needSeparatorForCategory = false;
}
MenuItem menuItem = new MenuItem();
menuItem.Header = MainWindow.GetResourceString(entryPair.Metadata.Header);
if (!string.IsNullOrEmpty(entryPair.Metadata.Icon))
{
menuItem.Icon = new Image {
Width = 16,
Height = 16,
Source = Images.LoadImage(entry, entryPair.Metadata.Icon)
};
}
if (entryPair.Value.IsEnabled(context))
{
menuItem.Click += delegate { entry.Execute(context); };
}
else
{
menuItem.IsEnabled = false;
}
items.Add(menuItem);
}
}
}
menuItems = items;
return(items.Count > 0);
}
bool ShowContextMenu(TextViewContext context, out ContextMenu menu)
{
menu = new ContextMenu();
var menuGroups = new Dictionary <string, Lazy <IContextMenuEntry, IContextMenuEntryMetadata>[]>();
Lazy <IContextMenuEntry, IContextMenuEntryMetadata>[] topLevelGroup = null;
foreach (var group in entries.OrderBy(c => c.Metadata.Order).GroupBy(c => c.Metadata.ParentMenuID))
{
if (group.Key == null)
{
topLevelGroup = group.ToArray();
}
else
{
menuGroups.Add(group.Key, group.ToArray());
}
}
BuildMenu(topLevelGroup ?? Array.Empty <Lazy <IContextMenuEntry, IContextMenuEntryMetadata> >(), menu.Items);
return(menu.Items.Count > 0);
void BuildMenu(Lazy <IContextMenuEntry, IContextMenuEntryMetadata>[] menuGroup, ItemCollection parent)
{
foreach (var category in menuGroup.GroupBy(c => c.Metadata.Category))
{
bool needSeparatorForCategory = parent.Count > 0;
foreach (var entryPair in category)
{
IContextMenuEntry entry = entryPair.Value;
if (entry.IsVisible(context))
{
if (needSeparatorForCategory)
{
parent.Add(new Separator());
needSeparatorForCategory = false;
}
MenuItem menuItem = new MenuItem();
menuItem.Header = MainWindow.GetResourceString(entryPair.Metadata.Header);
menuItem.InputGestureText = entryPair.Metadata.InputGestureText;
if (!string.IsNullOrEmpty(entryPair.Metadata.Icon))
{
menuItem.Icon = new Image {
Width = 16,
Height = 16,
Source = Images.Load(entryPair.Value, entryPair.Metadata.Icon)
};
}
if (entryPair.Value.IsEnabled(context))
{
menuItem.Click += delegate { entry.Execute(context); };
}
else
{
menuItem.IsEnabled = false;
}
parent.Add(menuItem);
if (entryPair.Metadata.MenuID != null && menuGroups.TryGetValue(entryPair.Metadata.MenuID, out var group))
{
BuildMenu(group, menuItem.Items);
}
}
}
}
}
}
