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<template>
<div :class="{ 'cw-structural-element-consumemode': consumeMode }" class="cw-structural-element">
<div v-if="structuralElement" class="cw-structural-element-content">
<ContentBar isContentBar>
<template #buttons-left>
<router-link v-if="prevElement" :to="'/structural_element/' + prevElement.id">
<div class="cw-ribbon-button cw-ribbon-button-prev" :title="textRibbon.perv" />
</router-link>
<div
v-else
class="cw-ribbon-button cw-ribbon-button-prev-disabled"
:title="$gettext('Keine vorherige Seite')"
/>
<router-link v-if="nextElement" :to="'/structural_element/' + nextElement.id">
<div class="cw-ribbon-button cw-ribbon-button-next" :title="textRibbon.next" />
</router-link>
<div
v-else
class="cw-ribbon-button cw-ribbon-button-next-disabled"
:title="$gettext('Keine nächste Seite')"
/>
</template>
<template #breadcrumb-list>
<ul>
<li
v-for="ancestor in ancestors"
:key="ancestor.id"
:title="ancestor.attributes.title"
class="cw-ribbon-breadcrumb-item"
>
<span>
<router-link :to="'/structural_element/' + ancestor.id">{{
ancestor.attributes.title || '–'
}}</router-link>
</span>
</li>
<li
class="cw-ribbon-breadcrumb-item cw-ribbon-breadcrumb-item-current"
:title="structuralElement.attributes.title"
>
<span>{{ structuralElement.attributes.title || '–' }}</span>
</li>
</ul>
</template>
<template #breadcrumb-fallback>
<ul>
<li
class="cw-ribbon-breadcrumb-item cw-ribbon-breadcrumb-item-current"
:title="structuralElement.attributes.title"
>
<span>{{ structuralElement.attributes.title }}</span>
</li>
</ul>
</template>
</ContentBar>
<div
class="cw-container-wrapper"
:class="{
'cw-container-wrapper-consume': consumeMode,
}"
>
<div v-if="structuralElementLoaded" class="cw-companion-box-wrapper">
<courseware-empty-element-box v-if="noContainers" :noContainers="noContainers" />
</div>
<component
v-for="container in containers"
:key="container.id"
:is="containerComponent(container)"
:container="container"
:canEdit="false"
:canAddElements="false"
:isTeacher="false"
class="cw-container-item"
/>
</div>
</div>
</div>
</template>
<script>
import ContainerComponents from '../containers/container-components.js';
import StructuralElementComponents from './structural-element-components.js';
import CoursewarePluginComponents from '../plugin-components.js';
import CoursewareCompanionOverlay from '../layouts/CoursewareCompanionOverlay.vue';
import { mapActions, mapGetters } from 'vuex';
import ContentBar from '../../ContentBar.vue';
import { store } from '../../../../assets/javascripts/chunks/vue';
export default {
name: 'public-courseware-structural-element',
components: Object.assign(StructuralElementComponents, {
CoursewareCompanionOverlay,
ContentBar,
}),
props: ['orderedStructuralElements', 'structuralElement'],
data() {
return {
consumModeTrap: false,
textRibbon: {
perv: this.$gettext('zurück'),
next: this.$gettext('weiter'),
},
};
},
computed: {
consumeMode() {
return store.state.studip.consumeMode;
},
...mapGetters({
courseware: 'courseware',
context: 'context',
containerById: 'courseware-containers/byId',
pluginManager: 'pluginManager',
relatedContainers: 'courseware-containers/related',
relatedStructuralElements: 'courseware-structural-elements/related',
structuralElementById: 'courseware-structural-elements/byId',
}),
currentId() {
return this.structuralElement?.id;
},
image() {
return this.structuralElement.relationships?.image?.meta?.['download-url'] ?? null;
},
structuralElementLoaded() {
return (
this.structuralElement !== null &&
!(this.structuralElement.constructor === Object && Object.keys(this.structuralElement).length === 0)
);
},
ancestors() {
if (!this.structuralElement) {
return [];
}
const finder = (parent) => {
const parentId = parent.relationships?.parent?.data?.id;
if (!parentId) {
return null;
}
const element = this.structuralElementById({ id: parentId });
return element;
};
const visitAncestors = function* (node) {
const parent = finder(node);
if (parent) {
yield parent;
yield* visitAncestors(parent);
}
};
return [...visitAncestors(this.structuralElement)].reverse();
},
prevElement() {
const currentIndex = this.orderedStructuralElements.indexOf(this.structuralElement.id);
if (currentIndex <= 0) {
return null;
}
const previousId = this.orderedStructuralElements[currentIndex - 1];
const previous = this.structuralElementById({ id: previousId });
return previous;
},
nextElement() {
const currentIndex = this.orderedStructuralElements.indexOf(this.structuralElement.id);
const lastIndex = this.orderedStructuralElements.length - 1;
if (currentIndex === -1 || currentIndex === lastIndex) {
return null;
}
const nextId = this.orderedStructuralElements[currentIndex + 1];
const next = this.structuralElementById({ id: nextId });
return next;
},
empty() {
if (this.containers === null) {
return true;
} else {
return !this.containers.some((container) => container.relationships.blocks.data.length > 0);
}
},
containers() {
let containers = [];
let relatedContainers = this.structuralElement?.relationships?.containers?.data;
if (relatedContainers) {
for (const container of relatedContainers) {
containers.push(this.containerById({ id: container.id }));
}
}
return containers;
},
noContainers() {
if (this.containers === null) {
return true;
} else {
return this.containers.length === 0;
}
},
isRoot() {
return this.structuralElement.id === this.context.rootId;
},
},
methods: {
...mapActions({
companionError: 'companionError',
companionInfo: 'companionInfo',
companionSuccess: 'companionSuccess',
}),
containerComponent(container) {
return 'courseware-' + container.attributes['container-type'] + '-container';
},
},
created() {
this.pluginManager.registerComponentsLocally(this);
},
watch: {
consumeMode(newState) {
this.consumModeTrap = newState;
},
},
// this line provides all the components to courseware plugins
provide: () => ({
containerComponents: ContainerComponents,
coursewarePluginComponents: CoursewarePluginComponents,
}),
};
</script>
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