412 lines
12 KiB
C#
412 lines
12 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Web;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Xml;
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using Newtonsoft.Json;
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using Newtonsoft.Json.Linq;
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namespace FineUI.Examples
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{
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public partial class _default : PageBase
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{
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#region Page_Init
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private string _menuType = "menu";
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private bool _showOnlyNew = false;
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private int _examplesCount = 0;
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protected void Page_Init(object sender, EventArgs e)
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{
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HttpCookie menuCookie = Request.Cookies["MenuStyle_v6"];
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if (menuCookie != null)
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{
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_menuType = menuCookie.Value;
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}
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// 从Cookie中读取是否仅显示最新示例
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HttpCookie menuShowOnlyNew = Request.Cookies["ShowOnlyNew_v6"];
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if (menuShowOnlyNew != null)
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{
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_showOnlyNew = Convert.ToBoolean(menuShowOnlyNew.Value);
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}
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if (_menuType == "accordion")
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{
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InitAccordionMenu();
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}
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else
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{
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InitTreeMenu();
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}
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if (_showOnlyNew)
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{
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leftPanel.Title = String.Format("最新示例（{0}）", _examplesCount);
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}
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else
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{
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leftPanel.Title = String.Format("全部示例（{0}）", _examplesCount);
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}
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}
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private Accordion InitAccordionMenu()
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{
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Accordion accordionMenu = new Accordion();
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accordionMenu.ID = "accordionMenu";
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accordionMenu.ShowBorder = false;
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accordionMenu.ShowHeader = false;
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leftPanel.Items.Add(accordionMenu);
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XmlDocument xmlDoc = XmlDataSource1.GetXmlDocument();
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XmlNodeList xmlNodes = xmlDoc.SelectNodes("/Tree/TreeNode");
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foreach (XmlNode xmlNode in xmlNodes)
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{
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if (xmlNode.HasChildNodes)
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{
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AccordionPane accordionPane = new AccordionPane();
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accordionPane.Title = xmlNode.Attributes["Text"].Value;
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accordionPane.Layout = Layout.Fit;
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accordionPane.ShowBorder = false;
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var accordionPaneIconAttr = xmlNode.Attributes["Icon"];
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if (accordionPaneIconAttr != null)
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{
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accordionPane.Icon = (Icon)Enum.Parse(typeof(Icon), accordionPaneIconAttr.Value, true);
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}
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accordionMenu.Items.Add(accordionPane);
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Tree innerTree = new Tree();
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innerTree.ShowBorder = false;
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innerTree.ShowHeader = false;
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innerTree.EnableIcons = true;
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innerTree.AutoScroll = true;
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innerTree.EnableSingleClickExpand = true;
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accordionPane.Items.Add(innerTree);
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XmlDocument doc = new XmlDocument();
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doc.LoadXml(String.Format("<?xml version=\"1.0\" encoding=\"utf-8\" ?><Tree>{0}</Tree>", xmlNode.InnerXml));
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ResolveXmlDocument(doc);
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// 绑定AccordionPane内部的树控件
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innerTree.NodeDataBound += treeMenu_NodeDataBound;
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innerTree.PreNodeDataBound += treeMenu_PreNodeDataBound;
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innerTree.DataSource = doc;
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innerTree.DataBind();
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}
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}
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return accordionMenu;
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}
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private Tree InitTreeMenu()
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{
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Tree treeMenu = new Tree();
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treeMenu.ID = "treeMenu";
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treeMenu.ShowBorder = false;
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treeMenu.ShowHeader = false;
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treeMenu.EnableIcons = true;
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treeMenu.AutoScroll = true;
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treeMenu.EnableSingleClickExpand = true;
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leftPanel.Items.Add(treeMenu);
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XmlDocument doc = XmlDataSource1.GetXmlDocument();
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ResolveXmlDocument(doc);
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// 绑定 XML 数据源到树控件
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treeMenu.NodeDataBound += treeMenu_NodeDataBound;
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treeMenu.PreNodeDataBound += treeMenu_PreNodeDataBound;
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treeMenu.DataSource = doc;
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treeMenu.DataBind();
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return treeMenu;
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}
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#region ResolveXmlDocument
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private void ResolveXmlDocument(XmlDocument doc)
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{
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ResolveXmlDocument(doc, doc.DocumentElement.ChildNodes);
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}
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private int ResolveXmlDocument(XmlDocument doc, XmlNodeList nodes)
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{
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// nodes 中渲染到页面上的节点个数
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int nodeVisibleCount = 0;
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foreach (XmlNode node in nodes)
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{
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// Only process Xml elements (ignore comments, etc)
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if (node.NodeType == XmlNodeType.Element)
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{
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XmlAttribute removedAttr;
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// 是否叶子节点
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bool isLeaf = node.ChildNodes.Count == 0;
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// 所有过滤条件均是对叶子节点而言，而是否显示目录，要看是否存在叶子节点
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if (isLeaf)
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{
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// 如果仅显示最新示例
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if (_showOnlyNew)
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{
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XmlAttribute isNewAttr = node.Attributes["IsNew"];
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if (isNewAttr == null)
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{
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removedAttr = doc.CreateAttribute("Removed");
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removedAttr.Value = "true";
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node.Attributes.Append(removedAttr);
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}
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}
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}
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// 存在子节点
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if (!isLeaf)
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{
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// 递归
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int childVisibleCount = ResolveXmlDocument(doc, node.ChildNodes);
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if (childVisibleCount == 0)
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{
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removedAttr = doc.CreateAttribute("Removed");
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removedAttr.Value = "true";
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node.Attributes.Append(removedAttr);
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}
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}
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removedAttr = node.Attributes["Removed"];
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if (removedAttr == null)
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{
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nodeVisibleCount++;
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}
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}
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}
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return nodeVisibleCount;
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}
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#endregion
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/// <summary>
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/// 树节点的绑定后事件
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void treeMenu_NodeDataBound(object sender, TreeNodeEventArgs e)
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{
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// 是否叶子节点
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bool isLeaf = e.XmlNode.ChildNodes.Count == 0;
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string isNewHtml = GetIsNewHtml(e.XmlNode);
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if (!String.IsNullOrEmpty(isNewHtml))
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{
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e.Node.Text += isNewHtml;
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}
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if (isLeaf)
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{
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// 设置节点的提示信息
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e.Node.ToolTip = e.Node.Text;
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}
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// 如果仅显示最新示例 并且 当前节点不是子节点，则展开当前节点
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if (_showOnlyNew && !e.Node.Leaf)
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{
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e.Node.Expanded = true;
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}
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}
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/// <summary>
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/// 树节点的预绑定事件
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void treeMenu_PreNodeDataBound(object sender, TreePreNodeEventArgs e)
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{
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/*
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// 如果仅显示最新示例
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if (showOnlyNew)
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{
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string isNewHtml = GetIsNewHtml(e.XmlNode);
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if (String.IsNullOrEmpty(isNewHtml))
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{
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e.Cancelled = true;
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}
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}
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// 更新示例总数
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if (e.XmlNode.ChildNodes.Count == 0)
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{
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examplesCount++;
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}
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*/
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// 是否叶子节点
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bool isLeaf = e.XmlNode.ChildNodes.Count == 0;
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XmlAttribute removedAttr = e.XmlNode.Attributes["Removed"];
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if (removedAttr != null)
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{
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e.Cancelled = true;
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}
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if (isLeaf && !e.Cancelled)
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{
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_examplesCount++;
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}
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}
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private string GetIsNewHtml(XmlNode node)
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{
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string result = String.Empty;
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XmlAttribute isNewAttr = node.Attributes["IsNew"];
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if (isNewAttr != null)
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{
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if (Convert.ToBoolean(isNewAttr.Value))
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{
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result = " <span class=\"isnew\">New!</span>";
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}
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}
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return result;
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}
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#endregion
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#region Page_Load
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protected void Page_Load(object sender, EventArgs e)
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{
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if (!IsPostBack)
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{
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InitMenuStyleButton();
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InitLangMenuButton();
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InitThemeMenuButton();
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InitMenuShowOnlyNew();
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litVersion.Text = FineUI.GlobalConfig.ProductVersion;
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litOnlineUserCount.Text = Application["OnlineUserCount"].ToString();
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}
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}
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private void InitMenuShowOnlyNew()
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{
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cbxShowOnlyNew.Checked = _showOnlyNew;
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}
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private void InitMenuStyleButton()
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{
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string menuStyleID = "MenuStyleTree";
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HttpCookie menuStyleCookie = Request.Cookies["MenuStyle_v6"];
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if (menuStyleCookie != null)
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{
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switch (menuStyleCookie.Value)
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{
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case "menu":
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menuStyleID = "MenuStyleTree";
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break;
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case "accordion":
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menuStyleID = "MenuStyleAccordion";
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break;
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}
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}
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SetSelectedMenuID(MenuStyle, menuStyleID);
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}
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private void InitLangMenuButton()
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{
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string langMenuID = "MenuLangZHCN";
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string langValue = PageManager1.Language.ToString().ToLower();
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switch (langValue)
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{
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case "zh_cn":
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langMenuID = "MenuLangZHCN";
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break;
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case "zh_tw":
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langMenuID = "MenuLangZHTW";
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break;
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case "en":
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langMenuID = "MenuLangEN";
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break;
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}
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SetSelectedMenuID(MenuLang, langMenuID);
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}
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private void InitThemeMenuButton()
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{
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string themeMenuID = "MenuThemeNeptune";
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string themeValue = PageManager1.Theme.ToString().ToLower();
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switch (themeValue)
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{
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case "classic":
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case "blue":
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themeMenuID = "MenuThemeBlue";
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break;
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case "gray":
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themeMenuID = "MenuThemeGray";
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break;
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case "neptune":
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themeMenuID = "MenuThemeNeptune";
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break;
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case "crisp":
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themeMenuID = "MenuThemeCrisp";
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break;
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case "triton":
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themeMenuID = "MenuThemeTriton";
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break;
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}
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SetSelectedMenuID(MenuTheme, themeMenuID);
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}
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private void SetSelectedMenuID(MenuButton menuButton, string selectedMenuID)
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{
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foreach (MenuItem item in menuButton.Menu.Items)
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{
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MenuCheckBox menu = (item as MenuCheckBox);
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if (menu != null && menu.ID == selectedMenuID)
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{
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menu.Checked = true;
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}
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else
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{
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menu.Checked = false;
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}
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}
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}
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#endregion
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}
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}
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