import Lazy from './lazy'
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import LazyComponent from './lazy-component'
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import LazyContainer from './lazy-container'
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import { assign } from './util'
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export default {
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/*
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* install function
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* @param {Vue} Vue
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* @param {object} options lazyload options
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*/
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install (Vue, options = {}) {
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const LazyClass = Lazy(Vue)
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const lazy = new LazyClass(options)
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const lazyContainer = new LazyContainer({ lazy })
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const isVue2 = Vue.version.split('.')[0] === '2'
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Vue.prototype.$Lazyload = lazy
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if (options.lazyComponent) {
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Vue.component('lazy-component', LazyComponent(lazy))
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}
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if (isVue2) {
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Vue.directive('lazy', {
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bind: lazy.add.bind(lazy),
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update: lazy.update.bind(lazy),
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componentUpdated: lazy.lazyLoadHandler.bind(lazy),
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unbind: lazy.remove.bind(lazy)
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})
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Vue.directive('lazy-container', {
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bind: lazyContainer.bind.bind(lazyContainer),
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update: lazyContainer.update.bind(lazyContainer),
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unbind: lazyContainer.unbind.bind(lazyContainer)
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})
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} else {
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Vue.directive('lazy', {
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bind: lazy.lazyLoadHandler.bind(lazy),
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update (newValue, oldValue) {
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assign(this.vm.$refs, this.vm.$els)
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lazy.add(this.el, {
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modifiers: this.modifiers || {},
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arg: this.arg,
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value: newValue,
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oldValue: oldValue
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}, {
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context: this.vm
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})
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},
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unbind () {
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lazy.remove(this.el)
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}
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})
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Vue.directive('lazy-container', {
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update (newValue, oldValue) {
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lazyContainer.update(this.el, {
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modifiers: this.modifiers || {},
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arg: this.arg,
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value: newValue,
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oldValue: oldValue
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}, {
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context: this.vm
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})
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},
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unbind () {
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lazyContainer.unbind(this.el)
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}
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})
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}
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}
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}
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