src/EasyFrameWork/Mvc/Resource/ResourceRegister.cs

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/* http://www.zkea.net/ 
 * Copyright (c) ZKEASOFT. All rights reserved. 
 * http://www.zkea.net/licenses */

using Easy.Mvc.RazorPages;
using Easy.Mvc.Resource.Enums;
using System;
using System.IO;
using Easy.Extend;
using Microsoft.AspNetCore.Mvc.Razor;
using Microsoft.AspNetCore.Html;
using System.Text.Encodings.Web;
using System.Threading.Tasks;
using System.Collections.Generic;

namespace Easy.Mvc.Resource
{
    public abstract class ResourceRegister
    {
        protected ResourceRegister(Action<ResourceCollection> onRegisted)
        {
            this.OnRegisted = onRegisted;
        }

        public abstract IDisposable AtHead();

        public abstract IDisposable AtFoot();

        public abstract ResourceCapture Reqiured(string name);

        public Action<ResourceCollection> OnRegisted { get; set; }

    }

    public class Capture : IDisposable
    {
        private RazorPage _page;
        private ResourcePosition _position;
        private Action<ResourceCollection> _onRegisted;

        public Capture(RazorPage page, ResourcePosition position, Action<ResourceCollection> onRegisted)
        {
            this._page = page;
            _position = position;
            this._page.StartTagHelperWritingScope(page.HtmlEncoder);
            _onRegisted = onRegisted;
        }

        public void Dispose()
        {
            var content = this._page.EndTagHelperWritingScope();
            var partResult = new HtmlString(content.GetContent());

            var resource = new ResourceCollection
                {
                    new ResourceEntity { Position = _position, Source = partResult }
                };
            resource.Name = "Capture-" + partResult.Value.GetHashCode();
            resource.Position = _position;
            _onRegisted(resource);