Vue Loading Overlay Component

Vue.js component for full screen loading indicator

Demo or JSFiddle

Version matrix

Vue.js version	Package version	Branch
2.x	3.x	3.x
3.x	6.x	main

Installation

npm install vue-loading-overlay@^6.0 

Usage

As component

<template>
    <div class="vl-parent">
        <loading v-model:active="isLoading"
                 :can-cancel="true"
                 :on-cancel="onCancel"
                 :is-full-page="fullPage"/>

        <label><input type="checkbox" v-model="fullPage">Full page?</label>
        <button @click.prevent="doAjax">fetch Data</button>
    </div>
</template>

<script>
    import Loading from 'vue-loading-overlay';
    import 'vue-loading-overlay/dist/css/index.css';

    export default {
        data() {
            return {
                isLoading: false,
                fullPage: true
            }
        },
        components: {
            Loading
        },
        methods: {
            doAjax() {
                this.isLoading = true;
                // simulate AJAX
                setTimeout(() => {
                    this.isLoading = false
                }, 5000)
            },
            onCancel() {
                console.log('User cancelled the loader.')
            }
        }
    }
</script>

As plugin

Initialise the plugin in your app

import {createApp} from 'vue';
import {LoadingPlugin} from 'vue-loading-overlay';
import 'vue-loading-overlay/dist/css/index.css';
// Your app initialization logic goes here
const app = createApp({});
app.use(LoadingPlugin);
app.mount('#app');

Then use the plugin in your components

<template>
    <form @submit.prevent="submit"
          class="vl-parent"
          ref="formContainer">
        <!-- your form inputs goes here-->
        <label><input type="checkbox" v-model="fullPage">Full page?</label>
        <button type="submit">Login</button>
    </form>
</template>

<script>
    export default {
        data() {
            return {
                fullPage: false
            }
        },
        methods: {
            submit() {
                let loader = this.$loading.show({
                    // Optional parameters
                    container: this.fullPage ? null : this.$refs.formContainer,
                    canCancel: true,
                    onCancel: this.onCancel,
                });
                // simulate AJAX
                setTimeout(() => {
                    loader.hide()
                }, 5000)
            },
            onCancel() {
                console.log('User cancelled the loader.')
            }
        }
    }
</script>

or same with Composition API

<script setup>
    import {ref, inject} from 'vue'
    import {useLoading} from 'vue-loading-overlay'
    
    const $loading = useLoading({
        // options
    });
    // or use inject without importing useLoading
    // const $loading =  inject('$loading')

    const fullPage = ref(false)

    const submit = () => {
        const loader = $loading.show({
            // Optional parameters
        });
        // simulate AJAX
        setTimeout(() => {
            loader.hide()
        }, 5000)
    }
</script>

Available props

The component accepts these props:

Attribute	Type	Default	Description
active	Boolean	false	Show loading by default when true, use it as v-model:active
can-cancel	Boolean	false	Allow user to cancel by pressing ESC or clicking outside
on-cancel	Function	()=>{}	Do something upon cancel, works in conjunction with can-cancel
is-full-page	Boolean	true	When false; limit loader to its container^
transition	String	fade	Transition name
color	String	#000	Customize the color of loading icon
height	Number	*	Customize the height of loading icon
width	Number	*	Customize the width of loading icon
loader	String	spinner	Name of icon shape you want use as loader, spinner or dots or bars
background-color	String	#fff	Customize the overlay background color
opacity	Number	0.5	Customize the overlay background opacity
z-index	Number	9999	Customize the overlay z-index
enforce-focus	Boolean	true	Force focus on loader
lock-scroll	Boolean	false	Freeze the scrolling during full screen loader

• ^When is-full-page is set to false, the container element should be positioned as position: relative. You can use CSS helper class vl-parent.
• *The default height and width values may vary based on the loader prop value

Available slots

The component accepts these slots:

• default - Replace the animated icon with yours
• before - Place anything before the animated icon, you may need to style this.
• after - Place anything after the animated icon, you may need to style this.

API methods

this.$loading.show(?propsData,?slots)

import {h} from 'vue';

let loader = this.$loading.show({
    // Pass props by their camelCased names
    container: this.$refs.loadingContainer,
    canCancel: true, // default false
    onCancel: this.yourCallbackMethod,
    color: '#000000',
    loader: 'spinner',
    width: 64,
    height: 64,
    backgroundColor: '#ffffff',
    opacity: 0.5,
    zIndex: 999,
}, {
    // Pass slots by their names
    default: h('your-custom-loader-component-name'),
});
// hide loader whenever you want
loader.hide();

Global configs

You can set props and slots for all future instances when using as plugin

app.use(LoadingPlugin, {
    // props
    color: 'red'
}, {
    // slots
})

Further you can override any prop or slot when creating new instances

let loader = this.$loading.show({
    color: 'blue'
}, {
    // override slots
});

Use directly in browser (with CDN)

<!-- Vue js -->
<script src="https://cdn.jsdelivr.net/npm/vue@3.3"></script>
<!-- Lastly add this package -->
<script src="https://cdn.jsdelivr.net/npm/vue-loading-overlay@6"></script>
<link href="https://cdn.jsdelivr.net/npm/vue-loading-overlay@6/dist/css/index.css" rel="stylesheet">
<!-- Init the plugin and component-->
<script>
    const app = Vue.createApp({});
    app.use(VueLoading.LoadingPlugin);
    app.component('loading', VueLoading.Component)
    app.mount('#app')
</script>

Run examples on your localhost

• Clone this repo
• Make sure you have node-js >=20.11 and pnpm >=8.x pre-installed
• Install dependencies pnpm install
• Run webpack dev server npm start
• This should open the demo page in your default web browser

Testing

• This package is using Jest and vue-test-utils for testing.
• Execute tests with this command npm test

License

MIT License