vue小型的的評分組件

注意好需要定義好自己的圖片文件。

<template>
  <!--1、需要傳兩個值，一個是分，一個從尺寸大小-->
      <div class="star" :class="'star-'+size">
        <span class="star-item" v-for="(sc, index) in starClasses" :class="sc" :key="index"></span>
      </div>
</template>

<script>
  const CLASS_ON = 'on'
  const CLASS_HALF = 'half'
  const CLASS_OFF = 'off'
  export default {
    name: 'Star',
    components: {},
    props: {
      score: Number,
      size: Number
    },
    computed: {
      /*
      * 不同的分數是根據class的類名來改變的
      *分數的類型。
      *半星最多是一個
      * 亮星與灰星是一個到N
      * */
      starClasses () {
        const {score} = this
        const scs = []
        const scoreInteger  = Math.floor(score)
        for (let i = 0; i<scoreInteger;i++) {
          scs.push(CLASS_ON)
          if(score*10 - scoreInteger*10 > 0) {
            scs.push(CLASS_HALF)
          }
          if(scs.length<=5) {
            scs.push(CLASS_OFF)
          }
        }
        return scs
      }
    }

  }
</script>


<style lang="stylus" rel="stylesheet/stylus">
  @import "../../common/stylus/mixins.styl"
  .star //2x圖 3x圖
    float left
    font-size 0
    .star-item
      display inline-block
      background-repeat no-repeat
    &.star-48
      .star-item
        width 20px
        height 20px
        margin-right 22px
        background-size 20px 20px
        &:last-child
          margin-right: 0
        &.on
          bg-image('./images/star48_on')
        &.half
          bg-image('./images/star48_half')
        &.off
          bg-image('./images/star48_off')
    &.star-36
      .star-item
        width 15px
        height 15px
        margin-right 6px
        background-size 15px 15px
        &:last-child
          margin-right 0
        &.on
          bg-image('./images/star36_on')
        &.half
          bg-image('./images/star36_half')
        &.off
          bg-image('./images/star36_off')
    &.star-24
      .star-item
        width 10px
        height 10px
        margin-right 3px
        background-size 10px 10px
        &:last-child
          margin-right 0
        &.on
          bg-image('./images/star24_on')
        &.half
          bg-image('./images/star24_half')
        &.off
          bg-image('./images/star24_off')
</style>