Vue实现typeahead组件功能(非常靠谱)

 前言

之前那个typeahead写的太早,不满足当前的业务需求。

而且有些瑕疵,还有也不方便传入数据和响应数据..

于是就推倒了重来,写了个V2的版本

看图,多了一些细节的考虑;精简了实现的逻辑代码

效果图

实现的功能

1: 鼠标点击下拉框之外的区域关闭下拉框

2: 支持键盘上下键选择,支持鼠标选择

3: 支持列表过滤搜索

4: 支持外部传入列表JSON格式的映射

5: 支持placeholder的传入

6: 选中对象的响应(.sync vue2.3的组件通讯的语法糖)

7: 箭头icon的映射,感觉作用不大,移除了

用法

• asyncdata:响应的数据,也就是选中的..回来是一个对象
• mapdata: 搜索的列表数据,肯定是外部传入了…
• mapdata: 列表值映射

代码

selectSearch.vue

 .el-fade-in-linear-enter-active,
 .el-fade-in-linear-leave-active,
 .fade-in-linear-enter-active,
 .fade-in-linear-leave-active {
  transition: opacity .2s linear;
 }
 .el-fade-in-enter,
 .el-fade-in-leave-active,
 .el-fade-in-linear-enter,
 .el-fade-in-linear-leave,
 .el-fade-in-linear-leave-active,
 .fade-in-linear-enter,
 .fade-in-linear-leave,
 .fade-in-linear-leave-active {
  opacity: 0;
 }
 .noFound {
  text-align: center;
 }
 .select-search {
  position: relative;
  z-index: 1000;
  a {
   color: #333;
   text-decoration: none;
   padding: 5px;
  }
  ul {
   list-style: none;
   padding: 6px 0;
   margin: 0;
   max-height: 200px;
   overflow-x: hidden;
   overflow-y: auto;
   li {
    display: block;
    width: 100%;
    padding: 5px;
    font-size: 14px;
    padding: 8px 10px;
    position: relative;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: #48576a;
    height: 36px;
    line-height: 1.5;
    box-sizing: border-box;
    cursor: pointer;
    &.active {
     background-color: #20a0ff;
     a {
      color: #fff;
     }
    }
   }
  }
  .select-header {
   position: relative;
   border-radius: 4px;
   border: 1px solid #bfcbd9;
   outline: 0;
   padding: 0 8px;
   >input {
    border: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    width: 100%;
    outline: 0;
    box-sizing: border-box;
    color: #1f2d3d;
    font-size: inherit;
    height: 36px;
    line-height: 1;
   }
   >i {
    transition: all .3s linear;
    display: inline-block;
    position: absolute;
    right: 3%;
    top: 50%;
    transform: translateY(-50%);
   }
  }
  .select-body {
   position: absolute;
   border-radius: 2px;
   background-color: #fff;
   box-sizing: border-box;
   margin: 5px 0;
   padding: 8px;
   width: 100%;
   box-shadow: 0 2px 4px rgba(0, 0, 0, .12), 0 0 6px rgba(0, 0, 0, .04);
   >input {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-color: #fff;
    background-image: none;
    border-radius: 4px;
    border: 1px solid #bfcbd9;
    box-sizing: border-box;
    color: #1f2d3d;
    font-size: inherit;
    height: 36px;
    line-height: 1;
    outline: 0;
    padding: 3px 10px;
    transition: border-color .2s cubic-bezier(.645, .045, .355, 1);
    width: 100%;
    display: inline-block;
    &:focus {
     outline: 0;
     border-color: #20a0ff;
    }
   }
  }
 }

总结

以上所述是小编给大家介绍的Vue实现typeahead组件功能(非常靠谱)，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对考高分网网站的支持！