I've been trying to reproduce the button behavior that I've here , but with a different implementation. Basically, I'm trying to use Vuex
instead of vue-i18n.js
for internationalization purposes.
I now have the following code block, the purpose of which is to create language states and perform a XMLHttpRequest (for the .json files storing the various translations):
Vue.use(Vuex);
var storelang = new Vuex.Store({
state: {
lang: {}
},
mutations: {
LANG: function (state, ln) {
function loadJSON(callback) {
var xobj = new XMLHttpRequest();
xobj.overrideMimeType("application/json");
xobj.open('GET', '../resources/i18n/' + ln + '.json', true);
xobj.onreadystatechange = function () {
if (xobj.readyState == 4 && xobj.status == "200") {
callback(xobj.responseText);
}
};
xobj.send(null);
}
loadJSON(function (languageJSON) {
state.lang = JSON.parse(languageJSON);
})
},
strict: true
}
});
var mix = Vue.mixin({
computed: {
lang: function () {
return storelang.state.lang;
}
}
});
On my component constructor
(created and initialized in the root Vue instance), I've the following:
components: {
lang: {
template: '<button type="button" class="btn btn-info" @click.prevent=activate(lang.code) @click="setActiveLang" v-show="!isActive">{{ lang.code }}</button>',
props: [
'active',
'lang'
],
computed: {
isActive: function() {
return this.lang.code == this.active.code
}
},
methods: {
activate: function(code) {
storelang.dispatch('LANG', code);
},
setActiveLang: function() {
this.active = this.lang;
}
},
ready: function() {
storelang.dispatch('LANG', 'en'); //default language
}
}
}
On my root Vue instance's data object
, I've added the following:
langs: [{
code: "en"
}, {
code: "fr"
}, {
code: "pt"
}],
active: {
"code": "pt"
}
And finally, on my html
:
<div v-for="lang in langs">
<p>
<lang :lang="lang" :active.sync="active"></lang>
</p>
</div>
I cannot figure out what I'm doing wrong here.
UPDATE
Here's a JsFiddle (I've exchanged the XMLHttpRequest request for json
arrays). Also, this is a working example, but the language selector buttons do not hide when the respective language is selected, which is the opposite of what I want. Meaning that, I'm attempting to hide each individual language selector button when the user clicks it and selects the respective language (while showing the other language selector buttons).
The solution involves saving an active
state in the store
, in addition to the lang
state:
new Vuex.Store({
state: {
active: {},
lang: {}
Adding an ACTIVE
mutation
:
ACTIVE: function(state, ln) {
var langcode = 'en'
//portuguese
if (ln === 'pt') {
langcode = 'pt'
}
//french
if (ln === 'fr') {
langcode = 'fr'
}
state.active = langcode
}
On the computed properties block, one also needs to add getter functions for the active
state and return the langcode
that is currently active
:
Vue.mixin({
computed: {
lang: function() {
return storelang.state.lang
},
enIsActive: function() {
return storelang.state.active == 'en'
},
frIsActive: function() {
return storelang.state.active == 'fr'
},
ptIsActive: function() {
return storelang.state.active == 'pt'
}
}
})
Then, it is just a question of conditionally displaying each of the buttons on the component template by adding v-show="!enIsActive"
, v-show="!frIsActive"
, etc.:
var langBtn = Vue.extend({
template: '<button type="button" class="btn btn-info" @click.prevent=activate("en") v-show="!enIsActive">en</button><button type="button" class="btn btn-info" @click.prevent=activate("pt") v-show="!ptIsActive">pt</button><button type="button" class="btn btn-info" @click.prevent=activate("fr") v-show="!frIsActive">fr</button>',
Finally, on the activate
method, adding a new line to change the active
state when the user clicks a button:
methods: {
activate: function(x) {
storelang.dispatch('LANG', x)
storelang.dispatch('ACTIVE', x)
}
},
The full working code here .
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