怎么样使用HTMl5高仿微信聊天功能？

<!-- //微聊底部功能面板 -->
<div class="wc__footTool-panel">
  <!-- 输入框模块 -->
  <div class="wc__editor-panel wc__borT flexbox">
    <div class="wrap-editor flex1"><div class="editor J__wcEditor" contenteditable="true"></div></div>
    <i class="btn btn-emotion"></i>
    <i class="btn btn-choose"></i>
    <button class="btn-submit J__wchatSubmit">发送</button>
  </div>

  <!-- 表情、选择模块 -->
  <div class="wc__choose-panel wc__borT" style="display: none;">
    <!-- 表情区域 -->
    <div class="wrap-emotion" style="display: none;">
      <div class="emotion__cells flexbox flex__direction-column">
        <div class="emotion__cells-swiper flex1" id="J__swiperEmotion">
          <div class="swiper-container">
            <div class="swiper-wrapper"></div>
            <div class="pagination-emotion"></div>
          </div>
        </div>
        <div class="emotion__cells-footer" id="J__emotionFootTab">
          <ul class="clearfix">
            <li class="swiperTmpl cur" tmpl="swiper__tmpl-emotion01"><img src="img/emotion/face01/face-lbl.png" alt=""></li>
            <li class="swiperTmpl" tmpl="swiper__tmpl-emotion02"><img src="img/emotion/face02/face-lbl.gif" alt=""></li>
            <li class="swiperTmpl" tmpl="swiper__tmpl-emotion03"><img src="img/emotion/face03/face-lbl.gif" alt=""></li>
            <li class="swiperTmpl" tmpl="swiper__tmpl-emotion04"><img src="img/emotion/face04/face-lbl.gif" alt=""></li>
            <li class="swiperTmpl" tmpl="swiper__tmpl-emotion05"><img src="img/emotion/face05/face-lbl.gif" alt=""></li>
            <li class="swiperTmpl" tmpl="swiper__tmpl-emotion06"><img src="img/emotion/face06/face-lbl.gif" alt=""></li>
            <li class="swiperTmplSet"><img src="img/wchat/icon__emotion-set.png" alt=""></li>
          </ul>
        </div>
      </div>
    </div>
    <!-- 选择区域 -->
    <div class="wrap-choose" style="display: none;">
      <div class="choose__cells">
        <ul class="clearfix">
          <li><a class="J__wchatZp" href="javascript:;"><span class="img"><img src="img/wchat/icon__choose-zp.png" /><input type="file" accept="image/*" /></span><em>照片</em></a></li>
          <li><a class="J__wchatSp" href="javascript:;"><span class="img"><img src="img/wchat/icon__choose-sp.png" /><input type="file" accept="video/*" /></span><em>视频</em></a></li>
          <li><a class="J__wchatHb" href="javascript:;"><span class="img"><img src="img/wchat/icon__choose-hb.png" /></span><em>红包</em></a></li>
          <li><a class="J__wchatSc" href="javascript:;"><span class="img"><img src="img/wchat/icon__choose-sc.png" /></span><em>我的收藏</em></a></li>
          <li><a class="J__wchatWj" href="javascript:;"><span class="img"><img src="img/wchat/icon__choose-wj.png" /></span><em>文件</em></a></li>
        </ul>
      </div>
    </div>
  </div>
</div>

<div class="wc__choosePanel-tmpl">
  <!-- //红包模板.begin -->
  <div id="J__popupTmpl-Hongbao" style="display:none;">
    <div class="wc__popupTmpl tmpl-hongbao">
      <i class="wc-xclose"></i>
      <ul class="clearfix">
        <li class="item flexbox">
          <label class="txt">总金额</label><input class="ipt-txt flex1" type="tel" name="hbAmount" placeholder="0.00" /><em class="unit">元</em>
        </li>
        <li class="item flexbox">
          <label class="txt">红包个数</label><input class="ipt-txt flex1" type="tel" name="hbNum" placeholder="填写个数" /><em class="unit">个</em>
        </li>
        <li class="tips">在线人数共<em class="memNum">186</em>人</li>
        <li class="item item-area">
          <textarea class="describe" name="content" placeholder="恭喜发财，大吉大利"></textarea>
        </li>
        <li class="amountTotal">￥<em class="num">0.00</em></li>
      </ul>
    </div>
  </div>
  <!-- //红包模板.end -->
</div>

// ...长按弹出菜单
$("#J__chatMsgList").on("longTap", "li .msg", function(e){
  var that = $(this), menuTpl, menuNode = $("<div class='wc__chatTapMenu animated anim-fadeIn'></div>");
  that.addClass("taped");
  that.parents("li").siblings().find(".msg").removeClass("taped");
  var isRevoke = that.parents("li").hasClass("me");
  var _revoke = isRevoke ? "<a href='#'><i class='ico i4'></i>撤回</a>" : "";
  if(that.hasClass("picture")){
    console.log("图片长按");
    menuTpl = "<div class='menu menu-picture'><a href='#'><i class='ico i1'></i>复制</a><a href='#'><i class='ico i2'></i>收藏</a><a href='#'><i class='ico i3'></i>另存为</a>"+ _revoke +"<a href='#'><i class='ico i5'></i>删除</a></div>";
  }else if(that.hasClass("video")){
    console.log("视频长按");
    menuTpl = "<div class='menu menu-video'><a href='#'><i class='ico i3'></i>另存为</a>" + _revoke +"<a href='#'><i class='ico i5'></i>删除</a></div>";
  }else{
    console.log("文字长按");
    menuTpl = "<div class='menu menu-text'><a href='#'><i class='ico i1'></i>复制</a><a href='#'><i class='ico i2'></i>收藏</a>" + _revoke +"<a href='#'><i class='ico i5'></i>删除</a></div>";
  }
  if(!$(".wc__chatTapMenu").length){
    $(".wc__chatMsg-panel").append(menuNode.html(menuTpl));
    autoPos();
  }else{
    $(".wc__chatTapMenu").hide().html(menuTpl).fadeIn(250);
    autoPos();
  }
  function autoPos(){
    console.log(that.position().top)
    var _other = that.parents("li").hasClass("others");
    $(".wc__chatTapMenu").css({
      position: "absolute",
      left: that.position().left + parseInt(that.css("marginLeft")) + (_other ? 0 : that.outerWidth() - $(".wc__chatTapMenu").outerWidth()),
      top: that.position().top - $(".wc__chatTapMenu").outerHeight() - 8
    });
  }
});