navigationmenu.cs

本系统是在asp版《在线文件管理器》的基础上设计制作

//------------------------------------------------------------------------------
// <copyright company="Telligent Systems">
//     Copyright (c) Telligent Systems Corporation.  All rights reserved.
// </copyright> 
//------------------------------------------------------------------------------

using System.Collections;
using System.Web.UI.WebControls;
using CommunityServer.Components;
using CommunityServer.Galleries.Components;

namespace CommunityServer.Galleries.Controls
{

	public class NavigationMenu : GalleryThemedControl
	{

		#region Child Controls

		private Repeater adminFunctionsRepeater;
		private Repeater navigationRepeater;

		#endregion

		#region Skin

		protected override void AttachChildControls()
		{
			adminFunctionsRepeater = (Repeater)FindControl( "AdminFunctionsRepeater" );
			navigationRepeater = (Repeater)FindControl( "NavigationRepeater" );
			InitializeChildControls();
		}

		private void InitializeChildControls()
		{
			adminFunctionsRepeater.ItemDataBound += new RepeaterItemEventHandler(adminFunctionsRepeater_ItemDataBound);
			navigationRepeater.ItemDataBound += new RepeaterItemEventHandler(navigationRepeater_ItemDataBound);
		}

		#endregion

		protected override void OnLoad(System.EventArgs e)
		{
			base.OnLoad(e);
			if(!Page.IsPostBack)
				DataBind();
		}


		public override void DataBind()
		{
			base.DataBind();
			ArrayList navItems = new ArrayList();
			ArrayList adminItems = new ArrayList();
			User user = CSContext.Current.User;

			PostCategory currentCategory = null;
			Picture currentPicture = null;

			if(CSContext.Current.CategoryID != -1)
				currentCategory = PostCategories.GetCategory(CSContext.Current.CategoryID, CategoryType.GalleryPicture, CurrentGallery.SectionID, CurrentUser.IsGalleryAdministrator);

			if(CSContext.Current.PostID != -1)
				currentPicture = Pictures.GetPicture(CSContext.Current.PostID);

			if(CurrentGallery != null)
			{
				navItems.Add( CurrentGallery );

				if( Permissions.ValidatePermissions( CurrentGallery, Permission.Post, user ))
				{
					adminItems.Add( CreateLink( "edit gallery", GalleryUrls.Instance().Admin_AdminGallery_ReturnUrl(CurrentGallery.ApplicationKey, "gallery_ViewGallery", CurrentGallery.ApplicationKey) ) );
				}

				if((currentCategory == null) && (currentPicture == null))
				{
					if( Permissions.ValidatePermissions( CurrentGallery, Permission.Post, user ))
					{
						adminItems.Add( CreateLink( "add category", GalleryUrls.Instance().Admin_AdminCategory_ReturnUrl(CurrentGallery.ApplicationKey, 0, "gallery_ViewGallery", CurrentGallery.ApplicationKey) ) );
						adminItems.Add( CreateLink( "add picture", GalleryUrls.Instance().Admin_AdminPicture_ReturnUrl(CurrentGallery.ApplicationKey, -1, -1, "gallery_ViewGallery", CurrentGallery.ApplicationKey) ) );
					}
				}
			}

			if(currentCategory != null)
			{
				navItems.Add( currentCategory );

				if( Permissions.ValidatePermissions( CurrentGallery, Permission.Post, user ))
				{
					adminItems.Add( CreateLink( "add sub category", GalleryUrls.Instance().Admin_AdminCategory_ReturnUrl(CurrentGallery.ApplicationKey, 0, "gallery_ViewGallery", CurrentGallery.ApplicationKey) ) );
					adminItems.Add( CreateLink( "edit category", GalleryUrls.Instance().Admin_AdminCategory_ReturnUrl(CurrentGallery.ApplicationKey, currentCategory.CategoryID, "gallery_ViewCategory", CurrentGallery.ApplicationKey + "," + currentCategory.CategoryID.ToString()) ) );

					if(currentPicture == null)
						adminItems.Add( CreateLink( "add picture", GalleryUrls.Instance().Admin_AdminPicture_ReturnUrl(CurrentGallery.ApplicationKey, currentCategory.CategoryID, -1, "gallery_ViewCategory", CurrentGallery.ApplicationKey + "," + currentCategory.CategoryID.ToString()) ) );
				}
			}

			if(currentPicture != null)
			{
				navItems.Add( currentPicture );

				if( Permissions.ValidatePermissions( CurrentGallery, Permission.Post | Permission.EditOthers, user ))
				{
					if(currentCategory != null)
						adminItems.Add( CreateLink( "edit picture", GalleryUrls.Instance().Admin_AdminPicture_ReturnUrl(CurrentGallery.ApplicationKey, -1, currentPicture.PostID, "gallery_ViewPicture_Category", CurrentGallery.ApplicationKey + "," + currentCategory.CategoryID.ToString() + "," + currentPicture.PostID.ToString()) ) );
					else
						adminItems.Add( CreateLink( "edit picture", GalleryUrls.Instance().Admin_AdminPicture_ReturnUrl(CurrentGallery.ApplicationKey, -1, currentPicture.PostID, "gallery_ViewPicture_Gallery", CurrentGallery.ApplicationKey + "," + currentPicture.PostID.ToString()) ) );
				}
			}

			navigationRepeater.DataSource = navItems;
			navigationRepeater.DataBind();

			if(adminItems.Count > 0)
			{
				adminFunctionsRepeater.DataSource = adminItems;
				adminFunctionsRepeater.DataBind();
			}
			else
				adminFunctionsRepeater.Visible = false;
		}

		private HyperLink CreateLink(string text, string navigateUrl)
		{
			HyperLink link = new HyperLink();
			link.Text = text;
			link.NavigateUrl = navigateUrl;
			return link;
		}

		private void navigationRepeater_ItemDataBound(object sender, RepeaterItemEventArgs e)
		{
			HyperLink navLink = e.Item.FindControl( "NavLink" ) as HyperLink;
			if(navLink == null)
				return;

			if(e.Item.DataItem is Gallery)
			{
				Gallery gallery = e.Item.DataItem as Gallery;
				navLink.Text = gallery.Name;
				navLink.NavigateUrl = GalleryUrls.Instance().ViewGallery( gallery.ApplicationKey );
			}
			else if(e.Item.DataItem is PostCategory)
			{
				PostCategory category = e.Item.DataItem as PostCategory;
				navLink.Text = category.Name;
				navLink.NavigateUrl = GalleryUrls.Instance().ViewCategory( CurrentGallery.ApplicationKey, category.CategoryID );
			}
			else if(e.Item.DataItem is Picture)
			{
				Picture picture = e.Item.DataItem as Picture;
				int categoryID = -1;
				if(CSContext.Current.CategoryID != -1)
					categoryID = CSContext.Current.CategoryID;
				if(picture.Subject != string.Empty)
					navLink.Text = picture.Subject;
				else
					navLink.Text = ResourceManager.GetString( "Gallery_NoTitle" );
				navLink.NavigateUrl = GalleryUrls.Instance().ViewPicture( CurrentGallery.ApplicationKey, categoryID, picture );
			}
		}

		private void adminFunctionsRepeater_ItemDataBound(object sender, RepeaterItemEventArgs e)
		{
			HyperLink item = e.Item.DataItem as HyperLink;
			
			switch(e.Item.ItemType)
            {
				case ListItemType.Item:
				case ListItemType.AlternatingItem:

					if(item != null)
					{
						HyperLink adminLink = (HyperLink)e.Item.FindControl( "AdminLink" );
						adminLink.Text = item.Text;
						adminLink.NavigateUrl = item.NavigateUrl;
					}

					break;
            }
		}
	}
}