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<template>
<div class="contentbar-button-wrapper contentbar-toc-wrapper">
<button v-if="!tocOpen"
class="cw-ribbon-button cw-ribbon-button-menu"
:title="$gettext('Inhaltsverzeichnis öffnen')"
@click.prevent="showTOC(true)"></button>
<transition name="cw-ribbon-slide" appear>
<article v-if="tocOpen" id="toc">
<header id="toc_header">
<h1 id="toc_h1">
{{ $gettext('Inhalt (%{count} Elemente)', {count: tocItemsCount.toString()}) }}
</h1>
<button class="toc-hide-button"
:title="$gettext('Inhaltsverzeichnis schließen')"
@click.prevent="showTOC(false)"></button>
</header>
<section>
<ul class="toc">
<ContentBarTocItemList :toc="toc" />
</ul>
</section>
</article>
</transition>
</div>
</template>
<script lang="ts">
import { defineComponent, PropType } from 'vue';
import { TOCItem, traverse } from './table-of-contents';
import ContentBarTocItemList from './ContentBarTocItemList.vue';
export default defineComponent({
name: 'ContentBarTableOfContents',
components: { ContentBarTocItemList },
props: {
toc: {
required: true,
type: Object as PropType<TOCItem>,
},
},
data() {
return {
tocOpen: false
}
},
computed: {
tocItemsCount(): number {
if (!this.toc) {
return 0;
}
// Count how many items are in the TOC tree.
let count = 0;
traverse(this.toc, () => count++);
return count;
},
},
methods: {
showTOC(state = true) {
this.tocOpen = state;
}
}
});
</script>
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