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node_modules/vue-baidu-map/components/overlays/Circle.vue 4.58 KB
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  <script>
  import commonMixin from '../base/mixins/common.js'
  import bindEvents from '../base/bindEvent.js'
  import {createPoint} from '../base/factory.js'
  
  export default {
    name: 'bm-circle',
    render () {},
    mixins: [commonMixin('overlay')],
    props: {
      center: {
      },
      radius: {
      },
      strokeColor: {
        type: String
      },
      strokeWeight: {
        type: Number
      },
      strokeOpacity: {
        type: Number
      },
      strokeStyle: {
        type: String
      },
      fillColor: {
        type: String
      },
      fillOpacity: {
        type: Number
      },
      massClear: {
        type: Boolean,
        default: true
      },
      clicking: {
        type: Boolean,
        default: true
      },
      editing: {
        type: Boolean,
        default: false
      }
    },
    watch: {
      'center.lng' (val, oldVal) {
        const {BMap, originInstance, isEditing, disableEditing, enableEditing, center, editing} = this
        if (!isEditing) {
          disableEditing()
          const lng = val
          if (val.toString() !== oldVal.toString() && lng >= -180 && lng <= 180) {
            originInstance.setCenter(createPoint(BMap, {lng, lat: center.lat}))
          }
          editing && enableEditing()
        }
      },
      'center.lat' (val, oldVal) {
        const {BMap, originInstance, isEditing, disableEditing, enableEditing, center, editing} = this
        if (!isEditing) {
          disableEditing()
          const lat = val
          if (val.toString() !== oldVal.toString() && lat >= -74 && lat <= 74) {
            originInstance.setCenter(createPoint(BMap, {lng: center.lng, lat}))
          }
          editing && enableEditing()
        }
      },
      radius (val, oldVal) {
        const {originInstance, isEditing, disableEditing, enableEditing, editing} = this
        if (!isEditing) {
          disableEditing()
          originInstance.setRadius(val)
          editing && enableEditing()
        }
      },
      strokeColor (val) {
        this.originInstance.setStrokeColor(val)
      },
      strokeOpacity (val) {
        this.originInstance.setStrokeOpacity(val)
      },
      strokeWeight (val) {
        this.originInstance.setStrokeWeight(val)
      },
      strokeStyle (val) {
        this.originInstance.setStrokeStyle(val)
      },
      fillColor (val) {
        this.originInstance.setFillColor(val)
      },
      fillOpacity (val) {
        this.originInstance.setFillOpacity(val)
      },
      editing (val) {
        val ? this.enableEditing() : this.disableEditing()
      },
      massClear (val) {
        val ? this.originInstance.enableMassClear() : this.originInstance.disableMassClear()
      },
      clicking (val) {
        this.reload()
      }
    },
    methods: {
      dragStartHandler () {
        this.isEditing = true
      },
      dragEndHandler () {
        this.isEditing = false
        this.bindEditingNodeEvents()
      },
      bindEditingNodeEvents () {
        const {originInstance, editingKey, dragStartHandler, dragEndHandler} = this
        originInstance[editingKey].forEach($node => {
          $node.addEventListener('dragstart', dragStartHandler)
          $node.addEventListener('dragend', dragEndHandler)
        })
      },
      enableEditing () {
        const {originInstance, bindEditingNodeEvents} = this
        originInstance.enableEditing()
        bindEditingNodeEvents()
      },
      disableEditing () {
        const {originInstance} = this
        originInstance.disableEditing()
      },
      getEditingKey (overlay) {
        const stack = []
        overlay.enableEditing()
        setTimeout(() => {
          for (const key in overlay) {
            if (overlay[key] && overlay[key].length === 2) {
              stack.push(key)
            }
          }
          overlay.disableEditing()
          for (const key in overlay) {
            if (overlay[key] && overlay[key].length === 0 && ~stack.indexOf(key)) {
              this.editingKey = key
            }
          }
        }, 0)
      },
      load () {
        const {BMap, map, center, radius, strokeColor, strokeWeight, strokeOpacity, strokeStyle, fillColor, fillOpacity, editing, massClear, clicking, enableEditing, disableEditing, getEditingKey, editingKey} = this
        const overlay = new BMap.Circle(createPoint(BMap, {lng: center.lng, lat: center.lat}), radius, {
          strokeColor,
          strokeWeight,
          strokeOpacity,
          strokeStyle,
          fillColor,
          fillOpacity,
          // enableEditing: editing,
          enableMassClear: massClear,
          enableClicking: clicking
        })
        this.originInstance = overlay
        map.addOverlay(overlay)
        bindEvents.call(this, overlay)
        // 解决圆形组件无法双向绑定的问题
        !editingKey && getEditingKey(overlay)
        setTimeout(() => {
          editing ? enableEditing() : disableEditing()
        }, 0)
      }
    }
  }
  </script>