public async Task ContributeAsync(PageToolbarContributionContext context)
{
if (await ShouldAddComponentAsync(context))
{
context.Items.Add(new PageToolbarItem(ComponentType, Arguments, Order));
}
}
protected virtual async Task <bool> ShouldAddComponentAsync(PageToolbarContributionContext context)
{
if (RequiredPolicyName != null)
{
var authorizationService = context.ServiceProvider.GetRequiredService <IAuthorizationService>();
if (!await authorizationService.IsGrantedAsync(RequiredPolicyName))
{
return(false);
}
}
return(true);
}
public virtual async Task <PageToolbarItem[]> GetItemsAsync(PageToolbar toolbar)
{
if (toolbar == null || !toolbar.Contributors.Any())
{
return(Array.Empty <PageToolbarItem>());
}
using (var scope = ServiceScopeFactory.CreateScope())
{
var context = new PageToolbarContributionContext(scope.ServiceProvider);
foreach (var contributor in toolbar.Contributors)
{
await contributor.ContributeAsync(context);
}
return(context.Items.OrderBy(i => i.Order).ToArray());
}
}
public abstract Task ContributeAsync(PageToolbarContributionContext context);