private async Task <TabTagHelper> ConvertToTagHelper(TabItem item)
{
var tagHelper = new TabTagHelper
{
ViewContext = TabStrip.ViewContext,
Selected = item.Selected,
Disabled = !item.Enabled,
Visible = item.Visible,
Ajax = item.Ajax,
Title = item.Text,
Name = item.Name,
BadgeStyle = (BadgeStyle)item.BadgeStyle,
BadgeText = item.BadgeText,
Icon = item.Icon,
ImageUrl = item.ImageUrl,
Summary = item.Summary
};
// Create TagHelperContext for tab passing it parent context's items dictionary (that's what Razor does)
var context = new TagHelperContext("tab", new TagHelperAttributeList(), Context.Items, CommonHelper.GenerateRandomDigitCode(10));
// Must init tab, otherwise "Tabs" list is empty inside tabstrip helper.
tagHelper.Init(context);
var outputAttrList = new TagHelperAttributeList();
item.HtmlAttributes.CopyTo(outputAttrList);
item.LinkHtmlAttributes.CopyTo(outputAttrList);
if (!item.HasContent && item.HasRoute)
{
outputAttrList.Add("href", item.GenerateUrl(tagHelper.UrlHelper));
}
var output = new TagHelperOutput("tab", outputAttrList, async(_, _) =>
{
var content = item.HasContent
? await item.GetContentAsync(tagHelper.ViewContext)
: HtmlString.Empty;
var contentTag = new TagBuilder("div");
contentTag.MergeAttributes(item.ContentHtmlAttributes, false);
TagHelperContent tabContent = new DefaultTagHelperContent()
.AppendHtml(contentTag.Attributes.Count > 0 ? contentTag.RenderStartTag() : HtmlString.Empty)
.AppendHtml(content)
.AppendHtml(contentTag.Attributes.Count > 0 ? contentTag.RenderEndTag() : HtmlString.Empty);
return(tabContent);
});
// Process tab
await tagHelper.ProcessAsync(context, output);
return(tagHelper);
}
/// <summary>
/// 测试初始化
/// </summary>
public TabTagHelperTest(ITestOutputHelper output)
{
_output = output;
_component = new TabTagHelper();
}