protected void OnClickInternal(UIMouseEventArgs e)
{
if (!Enabled)
{
return;
}
var menuId = RegisteredFunction.Invoke <string>("BlazorContextMenu.MenuItem.GetMenuId", MenuItemElement);
var menu = BlazorContextMenuHandler.GetMenu(menuId);
var contextMenuTarget = menu.GetTarget();
var args = new MenuItemClickEventArgs(e, menuId, contextMenuTarget, MenuItemElement, this);
if (Click != null)
{
Click(args);
if (!args.IsCanceled)
{
BlazorContextMenuHandler.HideMenu(menuId);
}
}
else if (ClickAsync != null)
{
ClickAsync(args).ContinueWith((t) =>
{
if (!args.IsCanceled)
{
BlazorContextMenuHandler.HideMenu(menuId);
}
});
}
}
protected override void OnAfterRender()
{
if (EnabledHandler == null && EnabledHandlerAsync == null && VisibleHandler == null && VisibleHandlerAsync == null)
{
return;
}
var menuId = RegisteredFunction.Invoke <string>("BlazorContextMenu.MenuItem.GetMenuId", MenuItemElement);
var menu = BlazorContextMenuHandler.GetMenu(menuId);
var contextMenuTarget = menu.GetTarget();
//menu is not showing. TODO: find a better way to figure this out
if (contextMenuTarget == null)
{
return;
}
//Hacky but works. TODO: Improve this code when this stuff is supported in Blazor
Task.Run(async() =>
{
var oldEnabledValue = Enabled;
var oldVisibleValue = Visible;
var args = new MenuItemHandlerArgs(menuId, contextMenuTarget, MenuItemElement, this);
if (EnabledHandler != null)
{
Enabled = EnabledHandler(args);
}
else if (EnabledHandlerAsync != null)
{
Enabled = await EnabledHandlerAsync(args);
}
if (VisibleHandler != null)
{
Visible = VisibleHandler(args);
}
else if (VisibleHandlerAsync != null)
{
Visible = await VisibleHandlerAsync(args);
}
if (oldEnabledValue != Enabled || oldVisibleValue != Visible)
{
StateHasChanged();
}
});
}