quasar/src/mixins/portal.js

Build high-performance VueJS user interfaces (SPA, PWA, SSR, Mobile and Desktop) in record time

import Vue from 'vue'

export function closePortalMenus (vm, evt) {
  do {
    if (vm.$options.name === 'QMenu') {
      vm.hide(evt)

      // is this a point of separation?
      if (vm.separateClosePopup === true) {
        return vm.$parent
      }
    }
    else if (vm.__renderPortal !== void 0) {
      // treat it as point of separation if parent is QPopupProxy
      // (so mobile matches desktop behavior)
      // and hide it too
      if (vm.$parent !== void 0 && vm.$parent.$options.name === 'QPopupProxy') {
        vm.hide(evt)
        return vm.$parent
      }
      else {
        return vm
      }
    }
    vm = vm.$parent
  } while (vm !== void 0)
}

export function closePortals (vm, evt, depth) {
  while (depth !== 0 && vm !== void 0) {
    if (vm.__renderPortal !== void 0) {
      depth--

      if (vm.$options.name === 'QMenu') {
        vm = closePortalMenus(vm, evt)
        continue
      }

      vm.hide(evt)
    }

    vm = vm.$parent
  }
}

export default {
  inheritAttrs: false,

  props: {
    contentClass: [Array, String, Object],
    contentStyle: [Array, String, Object]
  },

  methods: {
    __showPortal () {
      if (this.__portal !== void 0) {
        document.body.appendChild(this.__portal.$el)
      }
    },

    __hidePortal () {
      if (this.__portal !== void 0) {
        this.__portal.$destroy()
        this.__portal.$el.remove()
        this.__portal = void 0
      }
    },

    __preparePortal () {
      if (this.__portal === void 0) {
        this.__portal = new Vue({
          name: 'QPortal',
          parent: this,

          inheritAttrs: false,

          render: h => this.__renderPortal(h),

          components: this.$options.components,
          directives: this.$options.directives
        }).$mount()
      }
    }
  },

  render () {
    this.__portal !== void 0 && this.__portal.$forceUpdate()
  },

  beforeDestroy () {
    this.__hidePortal()
  }
}