I’m currently creating a vue3 cli app that uses vue-leaflet (the vue3 compatible version)
Everything works great on my local dev environment but once my app is built the map doesn’t load, even when I resize like this thread explains well.
I tried using the leafletObject.invalidateSize() method but nothing changed.
My map is a component called using a v-if on first call (switch between a list view and the map) and a v-show once it has been initialized
<transition name="fade" mode="out-in">
<Map v-if="mapInit"
v-show="(!mobileView && !listing) ||
(mobileView && !listing && !getFiltresMobile)"
:liste="getFilteredList"/>
</transition>
Here is what I get on my dev version when I use npm run serve
Here is the result on the prod version
Here is the relevant part of my code, I can add more if you think more code needs to be shown
<template>
<div id="map">
<l-map v-if="!loading" :style="mapHeight" :zoom="zoom" :center="centerValue" :options="{tap : false}" ref="map">
<l-tile-layer :url="url"></l-tile-layer>
<l-marker v-for="(marqueur) in mapData" :key="marqueur.id" :visible="isFiltered(marqueur)" :lat-lng="marqueur.latLng" :ref="setMarkerRefs" @click="markerClick(marqueur.latLng)">
<l-icon :icon-url="checkActive(marqueur.latLng)" :icon-size="[30 , 37]" :popup-anchor="popupUpPosition" :icon-anchor="[15, 37]"/>
<l-popup :options="popupoptions">
<MarqueurPopup :contenu="marqueur"/>
</l-popup>
</l-marker>
</l-map>
<Loader v-if="loading"/>
</div>
</template>
JS
<script>
import "leaflet/dist/leaflet.css"
import { LMap , LTileLayer , LPopup , LMarker , LIcon } from "@vue-leaflet/vue-leaflet";
export default {
name: "Map",
props : ['liste'],
components: {
Loader,
MarqueurPopup,
LMap,
LTileLayer,
LMarker,
LPopup,
LIcon,
},
data() {
return {
url: 'https://{s}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}{r}.png',
zoom: 13,
mapData : [],
markerRefs : [],
markerRefsDef : [],
popupoptions : {
maxWidth : 1000,
minWidth : 300,
closeButton : false,
}
};
},
beforeMount() {
this.initMap()
},
mounted() {
setTimeout( () => {
console.log(this.$refs.map.leafletObject) // returns the leaflet map objects
this.$refs.map.leafletObject.invalidateSize(); // no error but does nothing
}, 1000);
},
computed : {
popupUpPosition() {
if (window.innerWidth < 768) {
return [0, 74]
}
return [0, -37]
},
mapHeight() {
let colonneValue = window.innerWidth / 12;
if (colonneValue < 115) {
colonneValue = 115
}
let height = window.innerHeight - colonneValue;
return {height : height+'px'}
},
},
methods : {
async initMap() {
this.$store.commit('changeLoading' , true);
this.mapData = []
this.mapData = this.getFilteredList
this.$store.commit('changeLoading' , false);
},
}
}
</script>
Is there a way to check if the invalidateSize() methods triggers ? My console.log get no errors but nothing changes so maybe it doesn’t trigger the method ?
Answer
Rather looks like the Leaflet CSS is incorrectly loaded in your production bundle: tiles are scrambled up, no zoom and attribution controls.