using System;
using System.Collections.Generic;
using System.Text;
using PDFPatcher.Model;

namespace PDFPatcher.Processor
{
	sealed class CollapseBookmarkProcessor : IInfoDocProcessor
	{
		public BookmarkStatus BookmarkStatus { get; set; }
		public CollapseBookmarkProcessor() {

		}

		#region IBookmarkProcessor 成员

		public bool Process(System.Xml.XmlElement bookmark) {
			switch (BookmarkStatus) {
				case BookmarkStatus.AsIs:
					return false;
				case BookmarkStatus.CollapseAll:
					bookmark.SetAttribute(Constants.BookmarkAttributes.Open, Constants.Boolean.False);
					return true;
				case BookmarkStatus.ExpandAll:
					bookmark.SetAttribute(Constants.BookmarkAttributes.Open, Constants.Boolean.True);
					return true;
				case BookmarkStatus.ExpandTop:
					var p = bookmark.ParentNode;
					if (p != null && p.Name == Constants.DocumentBookmark) {
						bookmark.SetAttribute(Constants.BookmarkAttributes.Open, Constants.Boolean.True);
					}
					else {
						bookmark.SetAttribute(Constants.BookmarkAttributes.Open, Constants.Boolean.False);
					}
					return true;
				default:
					return false;
			}
		}

		#endregion
	}
}