vue自定义switch开关，使用less支持换肤

<template>
    <div :class="{‘theme-danger‘:danger,‘theme-default‘:!danger}">
   <span class="weui-switch" :class="{‘weui-switch-on‘ : isChecked}" :value="value" @click="toggle"
         style="position:relative">
  <div v-if="isChecked && direction.length > 0"
       style="width:100%;height:100%;position:absolute;padding:0 5px;line-height:20px;color:#FFF;user-select:none">
  {{direction[0]}}
  </div>

  <div v-if="!isChecked && direction.length > 0"
       style="width:100%;height:100%;position:absolute;padding:0 5px;right:2px;line-height:22px;color:#7A7A7A;text-align:right;user-select:none">
  {{direction[1]}}
  </div>

   </span>
    </div>
</template>

<script>
    export default {
        name: ‘switchComponent‘,
        props: {
            value: {
                type: Boolean,
                default: true
            },
              //开关文字描述
            text: {
                type: String,
                default: ‘‘
            },
                 //目前定义的一个主题，支持后续自己替换
            danger: {
                type: Boolean,
                default: false
            },
        },
        data() {
            return {
                isChecked: this.value
            }
        },
        computed: {
            direction() {
                if (this.text) {
                    return this.text.split(‘|‘)
                } else {
                    return []
                }
            }
        },
        watch: {
            value(val) {
                this.isChecked = val
            },
            isChecked(val) {
                this.$emit(‘change‘, val);
            }
        },
        methods: {
            toggle() {
                this.isChecked = !this.isChecked;
            }
        }
    }
</script>

<style scoped lang="less">

    /* 公共函数部分 */
    .theme(@default-color,@border-color) {
        /*将所有的涉及到切换主题的样式全部放在此处*/
         .weui-switch {
            display: block;
            position: relative;
            width: 38px;
            height: 20px;
            border: 1px @border-color;
            outline: 0;
            border-radius: 15px;
            box-sizing: border-box;
            background-color: @border-color;
            transition: background-color 0.1s, border 0.1s;
            cursor: pointer;
            box-shadow: 0 1px 1px @default-color;
        }

          .weui-switch:before {
            content: " ";
            position: absolute;
            top: 1px;
            left: 1px;
            width: 36px;
            height: 19px;
            border-radius: 15px;
            background: rgba(18, 39, 66);
            transition: transform 0.35s cubic-bezier(0.45, 1, 0.4, 1);
        }

          .weui-switch:after {
            content: " ";
            position: absolute;
            top: 3px;
            left: 3px;
            width: 15px;
            height: 15px;
            border-radius: 10px;
            background-color: @default-color;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
            transition: transform 0.35s cubic-bezier(0.4, 0.4, 0.25, 1.35);
        }

        .weui-switch-on:after {
            background: #FFFFFF;
        }

          .weui-switch-on {
            border-color: #6F6F6F;
            background-color: @default-color;
        }

          .weui-switch-on:before {
            border-color: @border-color;
            background-color: @default-color;
        }

          .weui-switch-on:after {
            transform: translateX(17px);
        }
    }

    /*不同主题传不同的变量*/
    .theme-default {
        @default-color: rgba(34, 190, 255, 1);
        @border-color: rgba(34, 190, 255, 1);
        .theme(@default-color, @border-color);
    }

    .theme-danger {
        @default-color: rgba(235, 97, 0, 1);
        @border-color: #EB6100;
        .theme(@default-color, @border-color);
    }

</style>