功能:

1.日历可以周视图、月视图切换;

2.点击月视图中日期可以切换到对应周视图;

3.点击周视图查看当日对应数据;

4.周、月视图状态下,点击前后按钮,分别切换对应上下的周、月;

5.点击回到今天,立即切回到周、月视图下对应的当日;

引用dayjs处理日期,结合el-calendar完美实现。

要注意的是,日历显示周的话,传的日期范围要按照计算所在星期,比如我们的需求是周日为每周起始日,那么就要给周日的日期和周六日期为起始日,月视图我不想再去计算日期范围了,就直接用了:value,注意用的不是v-model而是value,因为value是单向的,v-model是双向数据绑定了。

<template>
<div class="childContainer">
  <CompBar name="XX日历" iconName="rili.png" titleName="回到今天" @handleBarClick="nowCalendar">
  <div class="kalendar">
     <div class="kalendar-header">
        <span class="current-monuth">
            <i class="el-icon-caret-left" @click="showPrev"></i>
            <i class="el-icon-caret-right" @click="showNext"></i>
        </span>
        <el-radio-group v-model="monthYear" size="mini">
            <el-radio-button label="周"></el-radio-button>
            <el-radio-button label="月"></el-radio-button>
        </el-radio-group>
    </div>
    <CalendarMonth v-if="monthYear==='月'" :calendarValue="monthDate" :selectDay="dayDate" :dateList="dateList" @getPlanList="getplanList"></CalendarMonth>
    <CalendarWeek v-else :rangeArr="dateRange" :selectDay="dayDate" :dateList="dateList"         
@getPlanList="getplanList"></CalendarWeek>
  </div>
  <tabs :class="monthYear==='月'?'monthTabs':'weekTabs'" v-model="activePlan" v-loading="isLoading">
    <el-tab-pane name="tabApplyEndPlan">
//此处是个列表
</el-tab-pane>
    <el-tab-pane name="tabEndPlan"></el-tab-pane>
  </tabs>
</template>
// 此处省略组件、接口引入
import dayjs from 'dayjs';
var weekplugin = require('dayjs/plugin/weekday');
dayjs.extend(weekplugin)

// 此处省略,直接放核心代码
data(){
   return{
    activePlan:'tabApplyEndPlan',
    monthYear:'周', // 周、月视图切换,默认显示周
    monthDate:'', // 传后端参数 YYYY-MM,查视图上需要显示点的日期
    dayDate:'', // 传后端参数 YYYY-MM-DD,查视图下面对应的当日数据列表
    dateRange:[], // 周日历,传入周日历视图日期范围
    dateList:[], // 存放月数据,视图中需要显示点的日期
   }
},

watch:{
// 比较简单,直接省略代码了,记录下逻辑
// 监听 monthDate、dayDate 值的改变,调用对应接口
},

methods:{
showPrev() {
        // 上个月
        if (this.monthYear === '月') {
          this.monthDate = dayjs(this.monthDate).add(-1, 'month').format('YYYY-MM');
          // 需要判断当前选中日期是否属于当前月份
          let _dayDate = dayjs(this.dayDate).format('YYYY-MM');
          if (_dayDate === this.monthDate) {
            // 计算本周第一天
            let day1 = dayjs(this.dayDate).startOf('week').format('YYYY-MM-DD');
            // 计算本周最后一天
            let day2 = dayjs(this.dayDate).endOf('week').format('YYYY-MM-DD');
            this.dateRange = [day1, day2];
          } else {
            let day1 = dayjs(this.monthDate).startOf('month').startOf('week').format('YYYY-MM-DD');
            let day2 = dayjs(this.monthDate).startOf('month').endOf('week').format('YYYY-MM-DD');
            this.dateRange = [day1, day2]
          }
        }
        // 上星期
        if (this.monthYear === '周') {
          // 获取当前周视图
          let day1 = dayjs(this.dateRange[0]).add(-1, 'week').startOf('week').format('YYYY-MM-DD');
          let day2 = dayjs(this.dateRange[1]).add(-1, 'week').endOf('week').format('YYYY-MM-DD');
          this.monthDate = dayjs(this.dateRange[0]).add(-1, 'week').startOf('week').format('YYYY-MM');
          this.dateRange = [day1, day2]
        }
      }, 
showNext() {
        // 下个月
        if (this.monthYear === '月') {
          this.monthDate = dayjs(this.monthDate).add(1, 'month').format('YYYY-MM');
          // 需要判断当前选中日期是否属于当前月份
          let _dayDate = dayjs(this.dayDate).format('YYYY-MM');
          if (_dayDate === this.monthDate) {
            // 计算本周第一天
            let day1 = dayjs(this.dayDate).startOf('week').format('YYYY-MM-DD');
            // 计算本周最后一天
            let day2 = dayjs(this.dayDate).endOf('week').format('YYYY-MM-DD');
            this.dateRange = [day1, day2];
          } else {
            let day1 = dayjs(this.monthDate).endOf('month').startOf('week').format('YYYY-MM-DD');
            let day2 = dayjs(this.monthDate).endOf('month').endOf('week').format('YYYY-MM-DD');
            this.dateRange = [day1, day2]
          }
        }
        // 下星期
        if (this.monthYear === '周') {
          // 获取当前周视图
          let day1 = dayjs(this.dateRange[0]).add(1, 'week').startOf('week').format('YYYY-MM-DD');
          let day2 = dayjs(this.dateRange[1]).add(1, 'week').endOf('week').format('YYYY-MM-DD');
          this.monthDate = dayjs(this.dateRange[0]).add(1, 'week').startOf('week').format('YYYY-MM');
          this.dateRange = [day1, day2]
        }
      },
// 返回今日
     nowCalendar() {
      this.monthDate = dayjs(new Date()).format('YYYY-MM');
      this.dayDate = dayjs(new Date()).format('YYYY-MM-DD');
      let day1 = dayjs(new Date()).startOf('week').format('YYYY-MM-DD');
      let day2 = dayjs(new Date()).endOf('week').format('YYYY-MM-DD');
      this.dateRange = [day1, day2];
      this.activePlan = 'tabApplyEndPlan'
    },
// 周、月视图日期被点击处理方法
    getPlanList(date) {
      // console.log(this.monthYear)
      // console.log(date)
      this.dayDate = date.day;
      // 点击上、下月/周日期,不涉及视图的切换
      if (this.monthYear === '月') {
        if (date.type === 'next-month') {
          this.showNext()
        }
        if (date.type === 'prev-month') {
          this.showPrev()
        }
      }
      if (this.monthYear === '周') {
        let _month = dayjs(date.day).format('YYYY-MM');
        if (date.type === 'next-month') {
          if (_month !== this.monthDate) {
            this.monthDate = dayjs(date.day).format('YYYY-MM');
          }
        }
        if (date.type === 'prev-month') {
          if (_month !== this.monthDate) {
            this.monthDate = dayjs(date.day).format('YYYY-MM');
          }
        }
      }
      if (date.type === 'current-month') {
        this.monthYear = '周';
        // 计算本周第一天
        let day1 = dayjs(this.dayDate).startOf('week').format('YYYY-MM-DD');
        // 计算本周最后一天
        let day2 = dayjs(this.dayDate).endOf('week').format('YYYY-MM-DD');
        // 计算点击日期所在周第一天所属月
        this.monthDate = dayjs(day1).startOf('week').format('YYYY-MM');
        this.dateRange = [day1, day2];
      }
    },

}


自定义日历样式(没有用日历原先的头,全部自己重写的,还不错): 

::v-deep .kalendar {
    &-header {
      text-align: center;
      margin: 10px 16px 0 16px;

      .current-monuth {
        font-size: 16px;
        letter-spacing: 0;
        font-weight: 500;
        margin-left: 15%;
        color: #262626;
        font-family: PingFangSC-Medium;

        i {
          cursor: pointer;
        }
      }

      .el-radio-group {
        float: right;
      }

      .el-radio-button__orig-radio:checked + .el-radio-button__inner {
        background: #ffffff;
        box-shadow: -1px 0 0 0 transparent;
        border: 1px solid rgba(199, 0, 11, 1);
        font-family: PingFangSC-Medium;
        font-size: 12px;
        color: #c7000b;
        letter-spacing: -0.04px;
        font-weight: 500;
      }

      .el-radio-button__inner:hover {
        color: #c7000b;
      }
    }

    .calender-dot-box {
      width: 100%;
      bottom: -8px;
      position: absolute;

      span {
        width: 6px;
        height: 6px;
        margin-right: 3px;
        border-radius: 50%;
        display: inline-block;

        &:last-of-type {
          margin-right: 0;
        }
      }

      .endPlan {
        background-color: #d61212;
      }

      .applyEndPlan {
        background-color: #ffd100;
      }
    }

    .el-calendar {
      &__body {
        padding: 10px 16px;
      }

      .is-today {
        .el-calendar-day {
          .calender-date {
            width: 34px;
            height: 34px;
            margin: 0 auto;
            color: #ff534f;
            border-radius: 10px;
            background: #fff;
            box-shadow: none;
          }
        }
      }

      &__header {
        display: none;
      }

      .current {
        .el-calendar-day {
          color: #262626;
        }
      }

      .prev,
      .next {
        color: #bfbfbf;
      }

      &-day {
        padding: 0;
        font-weight: 700;
        font-size: 16px;
        letter-spacing: 0;
        text-align: center;
        position: relative;
        transition: color 0.3s;
        font-family: DINAlternate-Bold;
      }

      &-table {
        th {
          font-family: PingFangSC-Regular;
          font-size: 16px;
          color: #262626;
          letter-spacing: 0;
          text-align: center;
          line-height: 34px;
          font-weight: 400;
          padding: 0;

          &:last-of-type,
          &:first-of-type {
            color: #ff564e;
          }
        }

        td {
          border: none;

          &.is-selected {
            background-color: transparent;
          }
        }

        .el-calendar-day {
          height: 34px;
          line-height: 34px;

          &:hover {
            background-color: transparent;
          }

          .calendar-isSelected {
            width: 34px;
            height: 34px;
            margin: 0 auto;
            color: #fff;
            border-radius: 10px;
            background: #ff534f;
            box-shadow: 0px 0px 2px 0px rgba(238, 88, 64, 1);
          }
        }
      }
    }

再看看子组件里面,先看月的:

<template>
  <!-- 月日历 -->
  <el-calendar :value="calendarValue" :first-day-of-week="7" value-format="YYY-MM">
    <template slot="dateCell" slot-scope="{ date, data }">
      <div v-if="selectedDay === data.day" class="calendar-isSelected" @click="handleDate($event, date, data)">
        {{ date.getDate() }}
      </div>
      <div v-else class="calender-date" @click="handleDate($event, date, data)">
        {{ date.getDate() }}
      </div>
      <div class="calender-dot-box" @click="handleDate($event, date, data, 'dot')">
        <template v-for="(item) in dateLists">
          <span class="applyEndPlan" v-if="item.date === data.day && item.applyEndPlanNum > 0"></span>
          <span class="endPlan" v-if="item.date === data.day && item.endPlanNum > 0"></span>
        </template>
      </div>
    </template>
  </el-calendar>
</template>
<script>
export default {
  components: {},
  name: "CalendarMonth",
  props: {
    selectedDay: {
      type: String,
      default: "",
    },
    calendarValue: {
      type: String,
      default: new Date(),
    },
    dateList: {
      type: Array,
      default: () => {
        return [];
      },
    },
  },
  watch: {
    dateList: {
      handler(list) {
        this.dateLists = list;
      },
      immediate: true,
    },
  },
  data() {
    return { monthDate: this.calendarValue, dateLists: [] };
  },
  created() { },
  methods: {
    handleDate(e, date, data) {
      this.$emit("getPlanList", data);
    },
  },
};
</script>
<style lang="scss" scoped></style>

周日历组件:

<template>
  <!-- 周日历 -->
  <el-calendar :range="rangeArr" :first-day-of-week="7" value-format="YYY-MM">
    <template slot="dateCell" slot-scope="{date,data}">
      <div v-if="selectedDay === data.day" class="calendar-isSelected" @click="handleDate($event, date, data)">
        {{ date.getDate() }}</div> 
      <div v-else class="calender-date" @click="handleDate($event, date, data)">{{ date.getDate() }}</div>
      <div class="calender-dot-box" @click="handleDate($event, date, data)">
        <template v-for="(item) in dateList">
          <span class="applyEndPlan" v-if="item.date === data.day && item.applyEndPlanNum > 0"></span>
          <span class="endPlan" v-if="item.date === data.day && item.endPlanNum > 0"></span>
        </template>
      </div>
    </template>
  </el-calendar>
</template>
<script>
export default {
  components: {}, name: 'CalendarWeek', props: {
    selectedDay: {
      type: String, default: '',
    }, rangeArr: {
      type: Array,
      default: () => {
        return [];
      }
    }, dateList: {
      type: Array, default: () => {
        return [];
      }
    }
  }, data() {
    return {
    }
  }, created() {
  }, methods: {
    handleDate(e, date, data) {
      // console.log(e,date,data)
      this.$emit('getPlanList', data)
    },
  }
}</script>
<style lang="scss" scoped></style>

其实应该把日历组件二次封装一下,就不用单独再去写周、月日历子组件了,有空了可以试试。

不过不得不再吐槽一句,elementui的日历组件,给提供的API真心的少,功能很简单。。。

最终效果图:

月视图效果图:

月视图下,有时候会出现整整一行的灰色日期,看起来不是很美观,那么就需要操作dom,通过js判断,操作dom来处理。大概思路就是,先通过 document.querySelectorAll('.el-calendar-table__row') 获取到所有.el-calendar-table__row的元素节点lists,然后循环遍历这些节点,若其子元素class中含有.current,那么就说明是带有当月的日期,则不改变样式,若不含,则说明这整行都是前\后月的日期,那么就可以把该.el-calendar-table__row的css里面加上属性display:none。

周视图效果图: 

GitHub 加速计划 / eleme / element
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