using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using Lskj.Util;
using Gecko;
using Gecko.Events;
using Lskj.Business.Impl;
using System.Runtime.InteropServices;

namespace Lskj.Control
{
    public partial class ModuleWebView : UserControl
    {
        public ModuleWebView()
        {
            InitializeComponent();
            Gecko.LauncherDialog.Download -= new EventHandler<LauncherDialogEvent>(LauncherDialog_Download);
        }
        GeckoWebBrowser browser;
        WebBrowser browserNew;
        public static bool Evenflag;

        public EventHandler<GeckoNavigatingEventArgs> OnNavigating;

        /// <summary>
        /// <para>说明：打开网页</para>
        /// <para>创建人：龚宇超</para>
        /// <para>创建日期：2019-03-14 </para>
        /// <para>修改人：</para>
        /// <para>修改日期：</para>
        /// <para>修改备注：</para>
        /// <para>版本：1.0</para>
        /// </summary>
        public void Navigate(string url)
        {
            Navigate(url, GeckoLoadFlags.None);
        }
        public void Navigate(string url, GeckoLoadFlags flag)
        {
            try
            {
                if (Directory.Exists(PubUtil.WebViewPath) && File.Exists(Path.Combine(PubUtil.WebViewPath, "crashreporter.exe")))
                {
                    url = url + "&t=" + DateTime.Now.Ticks;
                    if (browser != null)
                    {
                        browser.Dispose();
                        browser = null;
                    }
                    Xpcom.Initialize(PubUtil.WebViewPath);
                    browser = new GeckoWebBrowser();
                    browser.Dock = DockStyle.Fill;
                    browser.Name = "browser";
                    browser.NoDefaultContextMenu = true; //禁用右键菜单
                    if (OnNavigating != null)
                    {
                        browser.Navigating += OnNavigating;
                    }
                    this.panelControl1.Controls.Add(browser);
                    if (!Evenflag)
                    {
                        Gecko.LauncherDialog.Download += new EventHandler<LauncherDialogEvent>(LauncherDialog_Download);
                        Evenflag = true;
                    }
                    browser.Navigate(url, flag);

                }
                else
                {
                    MessageUtil.Show("未找到浏览器资源文件,请联系开发人员.");
                }
            }
            catch (Exception ex)
            {

                MessageUtil.Show("浏览器出错！" + ex);
            }
        }
           
        /// <summary>
        /// 触发下载事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void LauncherDialog_Download(Object sender, LauncherDialogEvent e)
        {
            string tipMsg = string.Empty;
            DataRow RT = AttachImpl.GetTempletFile(e.Filename);
            if (AttachImpl.CheckAttachOperation(2, "", Convert.ToInt32(RT["fileId"]), "", 0, out tipMsg) == 1)
            {
                if (browserNew != null)
                {
                    browserNew.Dispose();
                    browserNew = null;
                }
                browserNew = new WebBrowser();//点击下载的页面
                this.panelControl1.Controls.Add(browserNew);
                browserNew.Navigate(e.Url);     
            }
            else {
                MessageUtil.Show(tipMsg);
            }
	    }
        public void FDispose()
        {
            if (browser != null)
            {
                browser.Dispose();
            }
            this.Dispose();

        }
    }
}