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HTML

              
                
<div class='parent'>
  <tagged-input v-model="taggedInput"
        :handleInput="handleInput"></tagged-input>
  <p>这是希望获取的子组件数据:{{taggedInput}}</p>
</div>

              
            
!

CSS

              
                .input-wrapper {
        padding: 0 7px;
        width: 40% ;
        vertical-align: middle;
        line-height: 1.5;
        font-size: 12px;
        color: #666;
        background-color: #fff;
        background-image: none;
        border-radius: 4px;
        border: 1px solid #d9d9d9;
      &:focus {
          border-color: #40a5ed;
          box-shadow: 0 0 0 2px rgba(16,142,233,0.2);
      }
      &:hover{
        border-color: #40a5ed;
      };
      .tag{
        /*float: left;*/
        padding: 0 8px;
        margin: 4px 8px 4px 0;
        border-radius: 4px;
        border: 1px solid #e9e9e9;
        background:#f7f7f7;
        font-size:12px;
        line-height: 20px;
        display: inline-block;
        &:focus{
          border-color: #E60D0D;
        }
        .iconfont{
          font-size: 12px;
          cursor: pointer;
        }


      }
}
    .input {
        outline: none;
        border: none;
        appearance: none;
        display: inline-block;
        width: 100%;
        min-height: 28px;
        cursor: text;
    }


              
            
!

JS

              
                Vue.component("tagged-input", {
  template: `
  <div class='child'>
  <div class="input-wrapper clearfix">
     <li :tabindex="index" :class="['tag left',{'focus':index===deleteIndex}]" v-for="(tag,index) in tagList" :key="tag" ref="tags">
     <span>{{tag}}</span>
     <i class="iconfont icon-delete" @click="deleteTag(index)"></i>
          </li><!-- </ul> -->
        <div class="left input-box">
          <input type="text" class="input" :placeholder="placeholder" v-model="currentValue"
            @keyup.enter="onInputEnter"
            @input="onInput"
            @keyup.8.prevent.stop="onBackspacePress"></input>
        </div>
      </div>
    </div>
</div>


`,
  props: {
    value: [String, Number],
    placeholder: {
      type: [String, Number],
      default: ''
    },
    tagged: {
      type: Boolean,
      default: true
    },
    handleInput: Function
  },
  data() {
    return {
      currentValue: this.value,
      deleteIndex: -1,
      tagList: ['test1', 'test2']
    }
  },
  watch:{
    tagList(val){
      this.$emit('input',val.join(","));
    }
  },
  methods: {
    onInputEnter() {
      this.tagList.push(this.currentValue);
      this.currentValue = "";
      // this.$emit("input",this.currentValue);
    },
    /*
    input框有值则清空,第二次按键focus上一个tag。再次按则删除tag.
    */
    onBackspacePress(event) {

      if (event.target.value)
        this.currentValue = "";
      else {
        if (this.tagList.length > 0)
          this.deleteTag(this.tagList.length - 1);
      }
      return false;

    },
    deleteTag(index) {
      this.tagList.splice(index, 1);
    },
    onInput(event) {
      this.currentValue = event.target.value;
      console.log(" child :in tagged ",this.currentValue)
      // this.$emit("input",this.currentValue);
      if (this.handleInput)
        this.handleInput(this.currentValue);
    },

  }

})

let parent = new Vue({
  el: '.parent',
  data: {
    taggedInput: ''
  },
  watch:{
   "taggedInput"(val){
     console.log("parent watch input: ",val);
   } 
  },
  methods: {
    handleInput(val) {
      console.log(this.input);
    }
  }
})


/*
backspace回退问题:http://stackoverflow.com/questions/6587525/javascript-backspace-by-default-problem-going-back-a-page
*/
              
            
!
999px

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