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<template>
<div
class="sidebar-group"
:class="{ first, collapsable }"
>
<p
class="sidebar-heading"
:class="{ open }"
@click="$emit('toggle')"
>
<span>{{ item.title }}</span>
<span
class="arrow"
v-if="collapsable"
:class="open ? 'down' : 'right'">
</span>
</p>
<DropdownTransition>
<ul
ref="items"
class="sidebar-group-items"
v-if="open || !collapsable"
>
<li v-for="child in item.children">
<SidebarLink :item="child"/>
</li>
</ul>
</DropdownTransition>
</div>
</template>
<script>
import SidebarLink from './SidebarLink.vue'
import DropdownTransition from './DropdownTransition.vue'
export default {
name: 'SidebarGroup',
props: ['item', 'first', 'open', 'collapsable'],
components: { SidebarLink, DropdownTransition }
}
</script>
<style lang="stylus">
.sidebar-group
&:not(.first)
margin-top 1em
.sidebar-group
padding-left 0.5em
&:not(.collapsable)
.sidebar-heading
cursor auto
color inherit
.sidebar-heading
color #999
transition color .15s ease
cursor pointer
font-size 1.1em
font-weight bold
// text-transform uppercase
padding 0 1.5rem
margin-top 0
margin-bottom 0.5rem
&.open, &:hover
color inherit
.arrow
position relative
top -0.12em
left 0.5em
&:.open .arrow
top -0.18em
.sidebar-group-items
transition height .1s ease-out
overflow hidden
</style>
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