object Create(ToolBarButtonMD md, IToolBarItemContext ctx, IInputElement commandTarget)
{
var item = (IToolBarButton)md.ToolBarItem;
var md2 = (IToolBarButtonMetadata)md.Metadata;
var cmdHolder = item as ICommandHolder;
var cmd = cmdHolder != null ? cmdHolder.Command : new RelayCommand(a => item.Execute(ctx), a => item.IsEnabled(ctx));
string header = ResourceHelper.GetString(item, md2.Header);
string icon = md2.Icon;
string toolTip = ResourceHelper.GetString(item, md2.ToolTip);
header = item.GetHeader(ctx) ?? header;
toolTip = item.GetToolTip(ctx) ?? toolTip;
var imgRef = item.GetIcon(ctx) ?? ImageReferenceHelper.GetImageReference(item, icon) ?? default(ImageReference);
var toggleButtonCmd = item as IToolBarToggleButton;
Debug.Assert(md2.IsToggleButton == (toggleButtonCmd != null), "Implement IToolBarToggleButton if IsToggleButton is true");
if (toggleButtonCmd != null)
{
return(CreateToggleButton(toggleButtonCmd.GetBinding(ctx), cmd, commandTarget, header, toolTip, imgRef));
}
return(new ToolBarButtonVM(cmd, commandTarget, header, toolTip, imgRef));
}
static AppSettingsPageVM TryCreate(object obj, IAppSettingsPageContainerMetadata md, PageContext context)
{
Guid?guid = md.Guid == null ? null : TryParseGuid(md.Guid);
Debug.Assert(guid != null, "Invalid GUID");
if (guid == null)
{
return(null);
}
Guid?parentGuid = md.ParentGuid == null ? rootGuid : TryParseGuid(md.ParentGuid);
Debug.Assert(parentGuid != null, "Invalid Parent GUID");
if (parentGuid == null)
{
return(null);
}
if (string.IsNullOrEmpty(md.Title))
{
return(null);
}
var title = ResourceHelper.GetString(obj, md.Title);
var icon = ImageReferenceHelper.GetImageReference(obj, md.Icon) ?? ImageReference.None;
return(new AppSettingsPageVM(new AppSettingsPageContainer(title, md.Order, guid.Value, parentGuid.Value, icon), context));
}
MenuItem Create(IMenuItem item, IMenuItemMetadata metadata, MenuItemContext ctx, IInputElement commandTarget, MenuItem menuItem, bool isCtxMenu)
{
if (menuItem == null)
{
menuItem = new MenuItem();
}
menuItem.CommandTarget = commandTarget;
string header = ResourceHelper.GetString(item, metadata.Header);
string inputGestureText = ResourceHelper.GetString(item, metadata.InputGestureText);
ImageReference?iconImgRef = ImageReferenceHelper.GetImageReference(item, metadata.Icon);
header = item.GetHeader(ctx) ?? header;
inputGestureText = item.GetInputGestureText(ctx) ?? inputGestureText;
iconImgRef = item.GetIcon(ctx) ?? iconImgRef;
menuItem.IsChecked = item.IsChecked(ctx);
menuItem.Header = header;
menuItem.InputGestureText = inputGestureText;
var cmdHolder = item as ICommandHolder;
bool lastIsEnabledCallValue = false;
if (iconImgRef != null)
{
if (cmdHolder == null)
{
lastIsEnabledCallValue = item.IsEnabled(ctx);
}
else
{
var routedCommand = cmdHolder.Command as RoutedCommand;
lastIsEnabledCallValue = commandTarget == null || routedCommand == null || routedCommand.CanExecute(ctx, commandTarget);
}
Add16x16Image(menuItem, iconImgRef.Value, lastIsEnabledCallValue);
}
if (metadata.Guid != null)
{
var itemGuid = Guid.Parse(metadata.Guid);
if (guidToGroups.ContainsKey(itemGuid))
{
menuItem.Items.Add(new MenuItem());
menuItem.SubmenuOpened += (s, e) => {
if (e.Source == menuItem)
{
InitializeSubMenu(menuItem, ctx, itemGuid, commandTarget, isCtxMenu);
}
};
menuItem.SubmenuClosed += (s, e) => {
if (e.Source == menuItem)
{
menuItem.Items.Clear();
menuItem.Items.Add(new MenuItem());
}
};
}
}
ctx.OnDisposed += (_, __) => {
// Buggy automation peers could hold a reference to us, so clear the captured variables (we can't clear the captured 'this')
menuItem = null;
ctx = null;
commandTarget = null;
item = null;
iconImgRef = null;
};
menuItem.Command = cmdHolder != null ? cmdHolder.Command : new RelayCommand(a => {
Debug.Assert(!ctx.IsDisposed);
if (ctx?.IsDisposed == false)
{
item.Execute(ctx);
ctx?.Dispose();
}
}, a => {
if (ctx?.IsDisposed != false)
{
return(false);
}
bool b = item.IsEnabled(ctx);
if (lastIsEnabledCallValue != b && iconImgRef != null)
{
Add16x16Image(menuItem, iconImgRef.Value, lastIsEnabledCallValue = b);
}
return(b);
});
return(menuItem);
}
