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<template>
<header class="navbar">
<SidebarButton @toggle-sidebar="$emit('toggle-sidebar')" />
<RouterLink
:to="$localePath"
class="home-link"
>
<img
v-if="$site.themeConfig.logo"
class="logo"
:src="$withBase($site.themeConfig.logo)"
:alt="$siteTitle"
>
<span
v-if="$siteTitle"
ref="siteName"
class="site-name"
:class="{ 'can-hide': $site.themeConfig.logo }"
>{{ $siteTitle }}</span>
</RouterLink>
<div
class="links"
:style="linksWrapMaxWidth ? {
'max-width': linksWrapMaxWidth + 'px'
} : {}"
>
<AlgoliaSearchBox
v-if="isAlgoliaSearch"
:options="algolia"
/>
<SearchBox v-else-if="$site.themeConfig.search !== false && $page.frontmatter.search !== false" />
<NavLinks class="can-hide" />
</div>
</header>
</template>
<script>
import AlgoliaSearchBox from '@AlgoliaSearchBox'
import SearchBox from '@SearchBox'
import SidebarButton from '@theme/components/SidebarButton.vue'
import NavLinks from '@theme/components/NavLinks.vue'
export default {
name: 'Navbar',
components: {
SidebarButton,
NavLinks,
SearchBox,
AlgoliaSearchBox
},
data () {
return {
linksWrapMaxWidth: null
}
},
computed: {
algolia () {
return this.$themeLocaleConfig.algolia || this.$site.themeConfig.algolia || {}
},
isAlgoliaSearch () {
return this.algolia && this.algolia.apiKey && this.algolia.indexName
}
},
mounted () {
const MOBILE_DESKTOP_BREAKPOINT = 719 // refer to config.styl
const NAVBAR_VERTICAL_PADDING = parseInt(css(this.$el, 'paddingLeft')) + parseInt(css(this.$el, 'paddingRight'))
const handleLinksWrapWidth = () => {
if (document.documentElement.clientWidth < MOBILE_DESKTOP_BREAKPOINT) {
this.linksWrapMaxWidth = null
} else {
this.linksWrapMaxWidth = this.$el.offsetWidth - NAVBAR_VERTICAL_PADDING
- (this.$refs.siteName && this.$refs.siteName.offsetWidth || 0)
}
}
handleLinksWrapWidth()
window.addEventListener('resize', handleLinksWrapWidth, false)
}
}
function css (el, property) {
// NOTE: Known bug, will return 'auto' if style value is 'auto'
const win = el.ownerDocument.defaultView
// null means not to return pseudo styles
return win.getComputedStyle(el, null)[property]
}
</script>
<style lang="stylus">
$navbar-vertical-padding = 0.7rem
$navbar-horizontal-padding = 1.5rem
.navbar
padding $navbar-vertical-padding $navbar-horizontal-padding
line-height $navbarHeight - 1.4rem
a, span, img
display inline-block
.logo
height $navbarHeight - 1.4rem
min-width $navbarHeight - 1.4rem
margin-right 0.8rem
vertical-align top
.site-name
font-size 1.3rem
font-weight 600
color $textColor
position relative
.links
padding-left 1.5rem
box-sizing border-box
background-color white
white-space nowrap
font-size 0.9rem
position absolute
right $navbar-horizontal-padding
top $navbar-vertical-padding
display flex
.search-box
flex: 0 0 auto
vertical-align top
@media (max-width: $MQMobile)
.navbar
padding-left 4rem
.can-hide
display none
.links
padding-left 1.5rem
.site-name
width calc(100vw - 9.4rem)
overflow hidden
white-space nowrap
text-overflow ellipsis
</style>
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