using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Linq;
using Microsoft.Office.Interop.Word;
using System.Runtime.InteropServices;
using CustomTaskPane = Microsoft.Office.Tools.CustomTaskPane;
using System.Windows.Forms;

namespace TestWordAddIn1
{
    public partial class ThisAddIn
    {

        public OfficeType officeType = OfficeType.Word;
        public string applicationStartupPath;
        public bool proofreadPanelOpen;
        private ProofreadPanel proofreadPanel;
        private Dictionary<Document, CustomTaskPane> myTaskPanes;
        private CustomTaskPane myCustomTaskPane;

        private void ThisAddIn_Startup(object sender, System.EventArgs e)
        {
            this.applicationStartupPath = System.Windows.Forms.Application.ProductName;

            if (applicationStartupPath.Contains("WPS"))
            {
                this.officeType = OfficeType.WPS;
                return;
            }
            var eventInfo = new ComAwareEventInfo(typeof(ApplicationEvents4_Event), "DocumentOpen");
            var handler = new ApplicationEvents4_DocumentOpenEventHandler(Application_DocumentOpen);

            // 监听文档相关操作
            //eventInfo.AddEventHandler(this, handler);
            //new ComAwareEventInfo(typeof(ApplicationEvents4_Event), "NewDocument").AddEventHandler(Application, new ApplicationEvents4_NewDocumentEventHandler(Application_NewDocument));
            //new ComAwareEventInfo(typeof(ApplicationEvents4_Event), "WindowActivate").AddEventHandler(Application, new ApplicationEvents4_WindowActivateEventHandler(Application_WindowActivate));
            //new ComAwareEventInfo(typeof(ApplicationEvents4_Event), "WindowDeactivate").AddEventHandler(Application, new ApplicationEvents4_WindowDeactivateEventHandler(Application_WindowDeactivate));

        }

        /// <summary>
        /// 隐藏所有的面板
        /// </summary>
        void HideAllPane()
        {
            foreach (CustomTaskPane customTaskPane in CustomTaskPanes)
            {
                customTaskPane.Visible = false;
            }
        }

        private void Application_NewDocument(Document doc)
        {
            Console.WriteLine("Application_NewDocument");
            InitProofreadPanel();
            HideAllPane();
        }

        private void Application_DocumentOpen(Document doc)
        {
            Console.WriteLine("Application_DocumentOpen");
            InitProofreadPanel();
            HideAllPane();
        }

        private void Application_DocumentChange()
        {
            Console.WriteLine("Application_DocumentChange");
            ShowTaskPaneForActiveDocument();
        }


        private void ShowTaskPaneForActiveDocument()
        {
            // 获取当前文档
            Document activeDocument = Application.ActiveDocument;
            // 如果现有任务不包含文档则直接返回
            if (!myTaskPanes.ContainsKey(activeDocument))
            {
                return;
            }
            // 显示当前文档panel隐藏其他文档panel
            foreach (var item in myTaskPanes)
            {
                if (item.Key == activeDocument)
                {
                    item.Value.Visible = true;
                }
                else
                {
                    item.Value.Visible = false;
                }
            }
        }

        public void Application_WindowActivate_WPS(Document document, Window window)
        {
            Console.WriteLine("Application_WindowActivate_WPS");
            if (myCustomTaskPane == null)
            {
                InitProofreadPanel();
            }
        }

        public void Application_WindowActivate(Document document, Window window)
        {
            Console.WriteLine("Application_WindowActivate");
            //bool flag = true;
            //if (myTaskPanes != null)
            //{
            //    foreach (KeyValuePair<Document,CustomTaskPane> customTaskPane in myTaskPanes)
            //    {
            //        if (customTaskPane.Key == Application.ActiveDocument)
            //        {
            //            flag = false;
            //            myCustomTaskPane = customTaskPane.Value;
            //            proofreadPanel = userControls[Application.ActiveDocument];
            //            myCustomTaskPane.Visible = customTaskPanesVisible[Application.ActiveDocument];
            //            break;
            //        }
            //    }
            //    if (flag)
            //    {
            //        NewCustomTaskPane();
            //    }
            //}
            //else
            //{
            //    NewCustomTaskPane();
            //}
            //Globals.Ribbons.Ribbon.button_viewOn.Visible = !myCustomTaskPane.Visible;
            //Globals.Ribbons.Ribbon.button_viewOff.Visible = myCustomTaskPane.Visible;
        }

        public void Application_WindowDeactivate(Document document, Window window)
        {
            Console.WriteLine("Application_WindowDeactivate");
            //if (customTaskPanesVisible.ContainsKey(document))
            //{
            //    customTaskPanesVisible[document] = myCustomTaskPane.Visible;
            //}
            //else
            //{
            //    customTaskPanesVisible.Add(document, myCustomTaskPane.Visible);
            //}
        }

        /// <summary>
        /// 面板最小宽度
        /// </summary>
        private static readonly int MIN_WIDTH = 380;

        void InitProofreadPanel()
        {
            if(this.myCustomTaskPane == null)
            {
                // 创建
                proofreadPanel = new ProofreadPanel();
                // 添加到panes
                this.myCustomTaskPane = CustomTaskPanes.Add(proofreadPanel, AppConfig.PanelName);
                // 先隐藏
                this.myCustomTaskPane.Visible = false;
                myCustomTaskPane.Width = MIN_WIDTH;
                this.myCustomTaskPane.VisibleChanged += OnProofreadPanel_VisibleChange;
                // 添加到集合
                //this.myTaskPanes.Add(Application.ActiveDocument, this.myCustomTaskPane);
            }

        }

        // 当面板的显示变化时
        private void OnProofreadPanel_VisibleChange(object sender, EventArgs e)
        {
            if(this.myCustomTaskPane != null && myCustomTaskPane.Width < MIN_WIDTH)
            {
                this.myCustomTaskPane.Width = MIN_WIDTH;
            }
        }

        private void ThisAddIn_Shutdown(object sender, System.EventArgs e)
        {
        }

        public void SetPanelVisible(bool open)
        {
            if (this.proofreadPanelOpen == open) return;

            this.InitProofreadPanel();
            this.proofreadPanelOpen = open;
            this.myCustomTaskPane.Visible = this.proofreadPanelOpen;
        }
        public bool TogglePanelVisible()
        {
            this.proofreadPanelOpen = !this.proofreadPanelOpen;
            this.myCustomTaskPane.Visible = this.proofreadPanelOpen;
            return this.proofreadPanelOpen;
        }

        #region VSTO 生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要修改
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InternalStartup()
        {
            this.Startup += new System.EventHandler(ThisAddIn_Startup);
            this.Shutdown += new System.EventHandler(ThisAddIn_Shutdown);
        }

        #endregion
    }
}