Vue-router: Using component method within the router - vue.js

Question

My first Vue project and I want to run a loading effect on every router call.
I made a Loading component:
<template>
<b-loading :is-full-page="isFullPage" :active.sync="isLoading" :can-cancel="true"></b-loading>
</template>
<script>
export default {
data() {
return {
isLoading: false,
isFullPage: true
}
},
methods: {
openLoading() {
this.isLoading = true
setTimeout(() => {
this.isLoading = false
}, 10 * 1000)
}
}
}
</script>
And I wanted to place inside the router like this:
router.beforeEach((to, from, next) => {
if (to.name) {
Loading.openLoading()
}
next()
}
But I got this error:
TypeError: "_components_includes_Loading__WEBPACK_IMPORTED_MODULE_9__.default.openLoading is not a function"
What should I do?

Answer 1

Vuex is a good point. But for simplicity you can watch $route in your component, and show your loader when the $route changed, like this:
...
watch: {
'$route'() {
this.openLoading()
},
},
...
I think it's fast and short solution.

Answer 2

I don't think you can access a component method inside a navigation guard (beforeEach) i would suggest using Vuex which is a vue plugin for data management and then making isLoading a global variable so before each route navigation you would do the same ... here is how you can do it :
Of course you need to install Vuex first with npm i vuex ... after that :
on your main file where you are initializing your Vue instance :
import Vue from 'vue'
import Vuex from 'vue'
Vue.use(Vuex)
const store = new Vuex.Store({
state: {
isLoading: false,
},
mutations: {
openLoading(state) {
state.isLoading = true
setTimeout(() => {
state.isLoading = false
}, 10000)
},
},
})
// if your router is on a separated file just export the store and import it there
const router = new VueRouter({
routes: [
{
// ...
},
],
})
router.beforeEach((to, from, next) => {
if (to.name) {
store.commit('openLoading')
}
next()
})
new Vue({
/// ....
router,
store,
})
In your component:
<b-loading :is-full-page="isFullPage" :active.sync="$store.state.isLoading" :can-cancel="true"></b-loading>