48 lines
1.2 KiB
JavaScript
48 lines
1.2 KiB
JavaScript
// Directives
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import Intersect from '../../directives/intersect'; // Utilities
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import { consoleWarn } from '../../util/console'; // Types
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import Vue from 'vue';
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export default function intersectable(options) {
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if (typeof window === 'undefined' || !('IntersectionObserver' in window)) {
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// do nothing because intersection observer is not available
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return Vue.extend({
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name: 'intersectable'
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});
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}
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return Vue.extend({
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name: 'intersectable',
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mounted() {
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Intersect.inserted(this.$el, {
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name: 'intersect',
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value: this.onObserve
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});
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},
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destroyed() {
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Intersect.unbind(this.$el);
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},
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methods: {
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onObserve(entries, observer, isIntersecting) {
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if (!isIntersecting) return;
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for (let i = 0, length = options.onVisible.length; i < length; i++) {
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const callback = this[options.onVisible[i]];
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if (typeof callback === 'function') {
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callback();
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continue;
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}
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consoleWarn(options.onVisible[i] + ' method is not available on the instance but referenced in intersectable mixin options');
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}
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}
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}
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});
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}
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//# sourceMappingURL=index.js.map
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