/// <summary>
/// Synchronously executes the <see cref="TagHelper" /> with the given <paramref name="context" /> and
/// <paramref name="output" />.
/// </summary>
/// <param name="context">Contains information associated with the current HTML tag.</param>
/// <param name="output">A stateful HTML element used to generate an HTML tag.</param>
public override void Process(TagHelperContext context, TagHelperOutput output)
{
// State check
if (output.TagMode != TagMode.SelfClosing)
{
throw new InvalidOperationException($"The '{HtmlTagName}' tag must use self closing mode.");
}
// Get information and build up context
var generator = GetRealGenerator(context);
var options = GetRealOptions(context);
CheckOptions(options);
GetPagingInfo(context, out var currentPage, out var totalPage);
var pagerContext = new PagerGenerationContext(currentPage, totalPage, options, ViewContext, GenerationMode);
// Generate result
var result = generator.GeneratePager(pagerContext);
// Disable default element output
output.SuppressOutput();
// Append pager content
output.PostElement.AppendHtml(result);
}
/// <summary>
/// Create a new <see cref="PagerItemGenerationContext" /> from a base <see cref="PagerGenerationContext" />.
/// </summary>
/// <param name="baseContext">The base <see cref="PagerGenerationContext" /> instance.</param>
/// <param name="pagerItem">The current page item.</param>
/// <param name="pagerItemOptions">The current page item options.</param>
public PagerItemGenerationContext([NotNull] PagerGenerationContext baseContext, PagerItem pagerItem,
PagerItemOptions pagerItemOptions)
{
if (baseContext == null)
{
throw new ArgumentNullException(nameof(baseContext));
}
CurrentPage = baseContext.CurrentPage;
TotalPage = baseContext.TotalPage;
Options = baseContext.Options;
ViewContext = baseContext.ViewContext;
GenerationMode = baseContext.GenerationMode;
PagerItem = pagerItem;
PagerItemOptions = pagerItemOptions;
}
