Adjust the internal state within a Vue3 component using a window function

Question

Adjust the internal state within a Vue3 component using a window function

Creating a "Loader" component that is fully independent and functional just by being included in the layout requires exposing some methods for use. Here is the code I have come up with:

<script setup>
let active = false;

function show() {
    active = true;
}

function hide() {
    active = false;
}

window.loader = {show, hide};
</script>


<template>
    <Transition name="loader">
        <div class="loader" v-if="active">
        </div>
    </Transition>
</template>

<style scoped>
/* All styles and transitions */
.loader {
    position: fixed;
    height: 100vh;
    width: 100vw;
    background: #000;
    z-index: 9999;
    top: 0;
    left: 0;
    opacity: 0.5;
}
</style>

However, the show and hide methods do not update the internal state of the component as intended.

The goal is to include it in BaseLayout.vue like this:

<template>
  <div class="root">
    <Loader />

    <slot>All application body</slot>
  </div>
</template>

Is there a way to globally expose these functions and effectively change the internal state of the loader component? Are there any patterns or solutions to address this issue efficiently, considering its usage across multiple layouts?

javascript vue.js vuejs3

Answer 1

Answer №1

To achieve this functionality, you can implement the following code:

<script setup>
import {ref} from 'vue'

let active = ref(false);

function displayLoader() {
    active.value = true;
}

function hideLoader() {
    active.value = false;
}

window.loader = {displayLoader, hideLoader, active};
</script>


<template>
    <Transition name="loader">
        <div class="loader" v-if="active">
        </div>
    </Transition>
</template>

<style scoped>
/* Styling and transitions for the loader */
.loader {
    position: fixed;
    height: 100vh;
    width: 100vw;
    background: #000;
    z-index: 9999;
    top: 0;
    left: 0;
    opacity: 0.5;
}
</style>

This implementation ensures that Vue detects changes accurately.

Answer 2

To achieve this functionality, you can implement the following code:

<script setup>
import {ref} from 'vue'

let active = ref(false);

function displayLoader() {
    active.value = true;
}

function hideLoader() {
    active.value = false;
}

window.loader = {displayLoader, hideLoader, active};
</script>


<template>
    <Transition name="loader">
        <div class="loader" v-if="active">
        </div>
    </Transition>
</template>

<style scoped>
/* Styling and transitions for the loader */
.loader {
    position: fixed;
    height: 100vh;
    width: 100vw;
    background: #000;
    z-index: 9999;
    top: 0;
    left: 0;
    opacity: 0.5;
}
</style>

This implementation ensures that Vue detects changes accurately.

Answer 3

Answer №2

To create a composable function that can be accessed globally, define a function with a ref property outside the function and use its methods to change its state:

File: useLoader.js

import {ref} from 'vue';
const active = ref(false);

export default function useLoader() {
  function show() {
    active.value = true;
  }

  function hide() {
      active.value = false;
 }


return {active,hide,show}
}

In the loader component:

<script setup>
import useLoader from './useLoader'

const {active} =useLoader();
</script>


<template>
    <Transition name="loader">
        <div class="loader" v-if="active">
        </div>
    </Transition>
</template>

In another component:

<script setup>
import useLoader from './useLoader'

const {show,hide} =useLoader();
</script>
<template>
  <div class="root">
   <button @click="show">Show Loader</button>
    <Loader />

    <slot>All application body</slot>
  </div>
</template>

Answer 4

To create a composable function that can be accessed globally, define a function with a ref property outside the function and use its methods to change its state:

File: useLoader.js

import {ref} from 'vue';
const active = ref(false);

export default function useLoader() {
  function show() {
    active.value = true;
  }

  function hide() {
      active.value = false;
 }


return {active,hide,show}
}

In the loader component:

<script setup>
import useLoader from './useLoader'

const {active} =useLoader();
</script>


<template>
    <Transition name="loader">
        <div class="loader" v-if="active">
        </div>
    </Transition>
</template>

In another component:

<script setup>
import useLoader from './useLoader'

const {show,hide} =useLoader();
</script>
<template>
  <div class="root">
   <button @click="show">Show Loader</button>
    <Loader />

    <slot>All application body</slot>
  </div>
</template>

Adjust the internal state within a Vue3 component using a window function

Answer №1

Answer №2

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