vue日历拖拽实现

Vue 日历拖拽实现方案

使用 vue-draggable 库

安装依赖库：

npm install vuedraggable

基础拖拽日历实现代码：

<template>
  <div>
    <draggable v-model="events" @end="onDragEnd">
      <div v-for="event in events" :key="event.id" class="event-item">
        {{ event.title }} - {{ event.date }}
      </div>
    </draggable>
  </div>
</template>

<script>
import draggable from 'vuedraggable'

export default {
  components: { draggable },
  data() {
    return {
      events: [
        { id: 1, title: '会议', date: '2023-05-10' },
        { id: 2, title: '生日', date: '2023-05-15' }
      ]
    }
  },
  methods: {
    onDragEnd() {
      // 拖拽结束后处理逻辑
    }
  }
}
</script>

结合 FullCalendar 实现专业拖拽

安装 FullCalendar 相关包：

npm install @fullcalendar/core @fullcalendar/daygrid @fullcalendar/interaction @fullcalendar/vue

完整实现示例：

<template>
  <FullCalendar
    :options="calendarOptions"
    @eventDrop="handleEventDrop"
  />
</template>

<script>
import FullCalendar from '@fullcalendar/vue'
import dayGridPlugin from '@fullcalendar/daygrid'
import interactionPlugin from '@fullcalendar/interaction'

export default {
  components: { FullCalendar },
  data() {
    return {
      calendarOptions: {
        plugins: [dayGridPlugin, interactionPlugin],
        initialView: 'dayGridMonth',
        editable: true,
        events: [
          { title: '会议', start: '2023-05-10' },
          { title: '生日', start: '2023-05-15' }
        ]
      }
    }
  },
  methods: {
    handleEventDrop(info) {
      console.log('事件被拖拽到新日期:', info.event.start)
    }
  }
}
</script>

自定义拖拽实现方案

对于需要完全自定义的场景，可以使用原生拖拽API：

<template>
  <div class="calendar">
    <div 
      v-for="day in days" 
      :key="day.date"
      class="day-cell"
      @dragover.prevent
      @drop="onDrop(day.date)"
    >
      <div 
        v-for="event in day.events"
        :key="event.id"
        draggable="true"
        @dragstart="onDragStart(event)"
        class="event"
      >
        {{ event.title }}
      </div>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      days: [
        { date: '2023-05-10', events: [...] },
        { date: '2023-05-11', events: [...] }
      ],
      draggedEvent: null
    }
  },
  methods: {
    onDragStart(event) {
      this.draggedEvent = event
    },
    onDrop(newDate) {
      // 更新事件日期
      this.draggedEvent.date = newDate
    }
  }
}
</script>

性能优化建议

对于大量日历事件的情况，考虑使用虚拟滚动技术。可以结合vue-virtual-scroller等库实现：

npm install vue-virtual-scroller

优化后的拖拽实现示例：

<template>
  <RecycleScroller
    :items="events"
    :item-size="50"
    class="scroller"
  >
    <template v-slot="{ item }">
      <div 
        draggable="true"
        @dragstart="onDragStart(item)"
        class="event-item"
      >
        {{ item.title }}
      </div>
    </template>
  </RecycleScroller>
</template>

移动端适配

针对移动设备添加触摸支持：

<template>
  <div
    v-for="event in events"
    :key="event.id"
    class="event"
    @touchstart="touchStart(event)"
    @touchmove="touchMove"
    @touchend="touchEnd"
  >
    {{ event.title }}
  </div>
</template>

<script>
export default {
  methods: {
    touchStart(event) {
      this.touchStartY = event.touches[0].clientY
      this.currentEvent = event
    },
    touchMove(e) {
      const y = e.touches[0].clientY
      const dy = y - this.touchStartY
      // 实现拖动效果
    },
    touchEnd() {
      // 处理拖动结束逻辑
    }
  }
}
</script>