WPF一步步开发XMPP IM客户端2:主窗体设计

UI设计方案:

 

在设计窗体UI之前,先要了解一些主要的接口和帮助类:

对于主窗的左侧列表,容器内的Item必须实现ILeftItem的接口,比如联系人、系统消息、群等,接口包含点击事件

public interface ILeftItem
{
  void Click();
}

项目的最外围容器是MainWindow,他涵盖了第一级菜单、第二级菜单、内容区等

其中更新菜单是在类UIStatic中:

     /// <summary>
        /// 设置第一级"业务"菜单文本
        /// </summary>
        internal static void SetBussTabText(string str)
        {
            mainWindow.SetBussTabText(str);
        }

        /// <summary>
        /// 设置第一级"聊天"菜单文本
        /// </summary>
        /// <param name="str"></param>
        internal static void SetHomeTabText(string str)
        {
            mainWindow.SetHomeTabText(str);
        }

        /// <summary>
        /// 更新子菜单
        /// </summary>
        internal static void SetHomeTabSubText()
        {
            mainWindow.SetHomeSubTabText();
        }

 

SetHomeSubTabText是更新子菜单,在MainWindow中实现,代码形如:

public void SetHomeSubTabText()
        {
            Link lkChat = new Link();
            lkChat.DisplayName = "Contact";
            lkChat.Source = new Uri(@"/Pages/Home.xaml", UriKind.Relative); ;
            tabHome.Links.Add(lkChat);
            Link lkMucChat = new Link();
            lkMucChat.DisplayName = "Group Chat";
            lkMucChat.Source = new Uri(@"/Pages/MucHome.xaml", UriKind.Relative); ;
            tabHome.Links.Add(lkMucChat);
            ......
        }

登陆后,进入的UI是Home.xmal,UI初始化的逻辑是左侧的列表由本地数据库查询生成,形成初始左侧List UI,自动绑定数据源
LeftListView.ItemsSource = itemsList;

消息、IQ的监听事件也在该方法进行:
private void BuildUI()
        {
            UIStatic.mainHome = this;

            if (Config.IsCheckPresence)
            {
                XmppStatic.xmppCon.OnRosterStart += new ObjectHandler(xmppCon_OnRosterStart);
                XmppStatic.xmppCon.OnRosterItem += new XmppClientConnection.RosterHandler(xmppCon_OnRosterItem);
                XmppStatic.xmppCon.OnRosterEnd += new ObjectHandler(xmppCon_OnRosterEnd);
                XmppStatic.xmppCon.OnPresence += new PresenceHandler(xmppCon_OnPresence);
            }
            XmppStatic.xmppCon.OnIq += new IqHandler(xmppCon_OnIq);
            XmppStatic.xmppCon.OnMessage += new MessageHandler(xmppCon_OnMessage);

            LoadListViewDataFromDB();
            LeftListView.ItemsSource = itemsList;

            if (!Config.IsDebug)
            {
                LogTextBox.Visibility = System.Windows.Visibility.Hidden;
                LogTextBox.Height = 1;
            }
        }
View Code

 

当新消息到来,在HandleMessage中处理。

 
private void HandleMessage()
        {
            if (NewestMSG.Type == MessageType.chat)//单聊
            {
                SetChatPanelUI(new ChatRoom(NewestMSG.From.Bare, NewestMSG.From.Bare));
                UpdateMessageArea();
            }
            else //系统消息
            {
                if (NewestMSG.Type == MessageType.groupchat) // MUC服务
                {
                    SetChatPanelUI(new MUChatRoom(NewestMSG.From.Bare, NewestMSG.Body.ToString()));
                    UpdateMessageArea();

                }
                else if (NewestMSG.Type == MessageType.error) // Error
                {

                }
                else //公告
                {......

 


代码下载地址:https://lightchat.codeplex.com/

 

posted @ 2015-09-30 10:55  昕友软件开发  阅读(785)  评论(0编辑  收藏  举报
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