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<template>
<b-nav-item @click="toggleTheme">
<icon-sun v-if="userTheme !== 'dark-theme'" />
<icon-moon v-if="userTheme === 'dark-theme'" />
</b-nav-item>
</template>
<script>
import IconSun from '@carbon/icons-vue/es/sun/20';
import IconMoon from '@carbon/icons-vue/es/moon/20';
export default {
name: 'ThemeButton',
components: {
IconSun,
IconMoon,
},
data() {
return {
userTheme: 'light-theme',
};
},
mounted() {
const initUserTheme = this.getTheme() || this.getMediaPreference();
this.setTheme(initUserTheme);
},
methods: {
toggleTheme() {
const activeTheme = localStorage.getItem('user-theme');
if (activeTheme === 'light-theme') {
this.setTheme('dark-theme');
} else {
this.setTheme('light-theme');
}
},
getTheme() {
return localStorage.getItem('user-theme');
},
setTheme(theme) {
localStorage.setItem('user-theme', theme);
this.userTheme = theme;
document.documentElement.className = theme;
},
getMediaPreference() {
const hasDarkPreference = window.matchMedia(
'(prefers-color-scheme: dark)'
).matches;
if (hasDarkPreference) {
return 'dark-theme';
} else {
return 'light-theme';
}
},
},
// props: {},
// data() {},
// computed: {},
// watch: {},
// created() {},
// mounted() {},
// methods: {},
};
</script>
<style lang="scss">
:root.dark-theme {
--background-color-primary: #1e1e1e;
--background-color-secondary: #2d2d30;
--accent-color: #3f3f3f;
--text-primary-color: #ddd;
}
</style>
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