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<template>
<studip-wizard-dialog
:title="$gettext('Seiten verknüpfen')"
:confirmText="$gettext('Verknüpfen')"
:closeText="$gettext('Abbrechen')"
:lastRequiredSlotId="2"
:requirements="requirements"
:slots="wizardSlots"
@close="showElementLinkDialog(false)"
@confirm="linkElement"
>
<template v-slot:unit>
<form v-if="!loadingUnits" class="default" @submit.prevent="">
<fieldset v-if="hasUnits" class="radiobutton-set">
<template v-for="unit in units" :key="unit.id">
<input
:id="'cw-element-link-unit-' + unit.id"
type="radio"
:checked="unit.id === selectedUnitId"
:value="unit.id"
:aria-description="unit.element.attributes.title"
/>
<label @click="selectedUnit = unit" :for="'cw-element-link-unit-' + unit.id">
<div class="icon"><studip-icon shape="courseware" :size="32"/></div>
<div class="text">{{ unit.element.attributes.title }}</div>
<studip-icon shape="radiobutton-unchecked" :size="24" class="unchecked" />
<studip-icon shape="check-circle" :size="24" class="check" />
</label>
</template>
</fieldset>
<courseware-companion-box
v-else
mood="sad"
:msgCompanion="$gettext('Es konnte leider kein Lernmaterial gefunden werden. Bitte erstellen Sie unter Arbeitsplatz/Courseware ein Lernmaterial.')"
/>
</form>
<studip-progress-indicator
v-else
:description="$gettext('Lade Lernmaterialien…')"
/>
</template>
<template v-slot:element>
<form v-if="selectedUnit" class="default" @submit.prevent="">
<courseware-structural-element-selector
v-model="selectedElement"
:rootId="selectedUnitRootId"
/>
</form>
<courseware-companion-box
v-else
mood="pointing"
:msgCompanion="$gettext('Bitte wählen Sie zuerst das Lernmaterial aus.')"
/>
</template>
</studip-wizard-dialog>
</template>
<script>
import CoursewareCompanionBox from '../layouts/CoursewareCompanionBox.vue';
import CoursewareStructuralElementSelector from './CoursewareStructuralElementSelector.vue';
import StudipWizardDialog from '../../StudipWizardDialog.vue';
import StudipProgressIndicator from '../../StudipProgressIndicator.vue';
import { mapActions, mapGetters } from 'vuex'
export default {
name: 'courseware-structural-element-dialog-link',
components: {
CoursewareCompanionBox,
CoursewareStructuralElementSelector,
StudipWizardDialog,
StudipProgressIndicator
},
data() {
return {
wizardSlots: [
{id: 1, valid: false, name: 'unit', title: this.$gettext('Lernmaterial'), icon: 'courseware',
description: this.$gettext('Wählen Sie das Lernmaterial aus, in dem sich der zu verknüpfende Lerninhalt befindet. Die Lerninhalte, die verknüpft werden können, müssen unter Arbeitsplatz/Courseware vorher erstellt werden.')},
{id: 2, valid: false, name: 'element', title: this.$gettext('Seite'), icon: 'content2',
description: this.$gettext('Wählen Sie die zu verknüpfende Seite aus. Um Unterseiten anzuzeigen, klicken Sie auf den Seitennamen. Mit einem weiteren Klick werden die Unterseiten wieder zugeklappt.')}, ],
loadingUnits: false,
selectedUnit: null,
selectedElement: null,
requirements: [],
text: {
}
}
},
computed: {
...mapGetters({
userId: 'userId',
coursewareUnits: 'courseware-units/all',
structuralElementById: 'courseware-structural-elements/byId',
context: 'context',
childrenById: 'courseware-structure/children',
currentElement: 'currentElement'
}),
units() {
let units = this.coursewareUnits.filter(unit => unit.relationships.range.data.id === this.userId);
units.forEach(unit => {
unit.element = this.getUnitElement(unit);
});
return units;
},
hasUnits() {
return this.units.length !== 0;
},
selectedUnitId() {
return this.selectedUnit?.id;
},
selectedUnitRootId() {
return this.selectedUnit?.relationships?.['structural-element']?.data?.id;
},
selectedElementTitle() {
return this.selectedElement?.attributes?.title;
},
selectedElementParent() {
let parentData = this.selectedElement?.relationships?.parent?.data;
if (parentData){
return this.structuralElementById({id: parentData.id});
}
return null;
},
selectedElementParentTitle() {
if (this.selectedElementParent) {
return this.selectedElementParent.attributes.title;
}
return '';
},
children() {
if (!this.selectedElement) {
return [];
}
return this.childrenById(this.selectedElement.id)
.map((id) => this.structuralElementById({ id }))
.filter(Boolean);
},
},
mounted() {
this.initWizardData();
this.updateUserUnits();
},
methods: {
...mapActions({
showElementLinkDialog: 'showElementLinkDialog',
loadUserUnits: 'loadUserUnits',
loadStructuralElement: 'courseware-structural-elements/loadById',
linkStructuralElement: 'linkStructuralElement',
companionError: 'companionError',
companionSuccess: 'companionSuccess',
}),
initWizardData() {
this.selectedRange = '';
this.selectedUnit = null;
this.validateSelection();
},
async updateUserUnits() {
this.loadingUnits = true;
await this.loadUserUnits(this.userId);
this.loadingUnits = false;
},
getUnitElement(unit) {
return this.structuralElementById({id: unit.relationships['structural-element'].data.id});
},
linkElement() {
this.linkStructuralElement({
parentId: this.currentElement,
elementId: this.selectedElement.id,
})
.then( () => {
this.companionSuccess({
info: this.$gettext(
'Die Seite %{ pageTitle } wurde erfolgreich verknüpft.',
{ pageTitle: this.selectedElementTitle }
)
});
})
.catch( () => {
this.companionError({
info: this.$gettext(
'Die Seite %{ pageTitle } konnte nicht verknüpft werden.',
{ pageTitle: this.selectedElementTitle }
)
});
})
.finally(() => {
this.showElementLinkDialog(false);
});
},
selectElement(id) {
this.selectedElement = this.structuralElementById({id: id});
this.loadStructuralElement({id: id, options: {include: 'children'}});
},
validateSelection() {
this.requirements = [];
if (this.selectedUnit === null) {
this.requirements.push({slot: this.wizardSlots[0], text: this.$gettext('Lernmaterial') });
}
if (this.selectedElement === null) {
this.requirements.push({slot: this.wizardSlots[1], text: this.$gettext('Seite') });
}
}
},
watch: {
selectedElement(newElement) {
this.validateSelection();
if (newElement !== null) {
this.wizardSlots[1].valid = true;
} else {
this.wizardSlots[1].valid = false;
}
},
async selectedUnit(newUnit) {
this.validateSelection();
if (newUnit !== null) {
this.wizardSlots[0].valid = true;
await this.loadStructuralElement({id: this.selectedUnitRootId, options: {include: 'children'}});
this.selectedElement = null;
} else {
this.wizardSlots[0].valid = false;
}
},
}
}
</script>
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