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<template>
<div class="cw-blubber-thread blubber_thread">
<ol
v-show="!loadingThreads && threadComments.length > 0"
class="cw-blubber-comments comments"
aria-live="polite"
ref="commentsRef"
>
<courseware-blubber-comment
v-for="comment in threadComments"
:key="comment.id"
:comment-id="comment.id"
:editing="comment.id === editingComments"
@answer="answerComment"
@delete="loadThread(threadId)"
@editing="editingComment"
/>
</ol>
<courseware-companion-box
v-show="!loadingThreads && threadComments.length === 0"
class="cw-blubber-thread-empty"
:msgCompanion="$gettext('Bisher wurde noch nicht diskutiert.')"
mood="pointing"
/>
<div v-show="!loadingThreads" class="cw-blubber-thread-add-comment">
<textarea
ref="composer"
v-model="newComment"
:placeholder="$gettext('Schreiben Sie eine Nachricht…')"
spellcheck="true"
@keydown.enter.exact="createComment"
@keyup.up.exact="editPreviousComment"
></textarea>
<button class="button" @click="createComment">
{{ $gettext('Absenden') }}
</button>
</div>
<studip-progress-indicator
v-show="loadingThreads"
class="cw-loading-indicator-blubber-comment"
:description="$gettext('Lade Beiträge…')"
/>
</div>
</template>
<script>
import CoursewareBlubberComment from './CoursewareBlubberComment.vue';
import CoursewareCompanionBox from '../layouts/CoursewareCompanionBox.vue';
import StudipProgressIndicator from '../../StudipProgressIndicator.vue';
import JSUpdater from '@/assets/javascripts/lib/jsupdater.js';
import { mapActions, mapGetters } from 'vuex';
export default {
name: 'courseware-blubber-thread',
components: {
CoursewareBlubberComment,
CoursewareCompanionBox,
StudipProgressIndicator
},
props: {
threadId: String,
},
data() {
return {
newComment: '',
loadingThreads: true,
updater: null,
editingComments: null,
}
},
computed: {
...mapGetters({
blubberThreadById: 'blubber-threads/byId',
blubberCommentsById: 'blubber-comments/byId',
}),
blubberThread() {
return this.blubberThreadById({ id: this.threadId });
},
threadComments() {
let comments = this.blubberThread?.relationships?.comments?.data;
if (comments) {
return comments;
}
return [];
},
threadTitle() {
return this.blubberThread?.attributes?.content;
}
},
methods: {
...mapActions({
loadBlubberThread: 'loadBlubberThread',
createBlubberComment: 'createBlubberComment',
companionInfo: 'companionInfo',
}),
async createComment() {
if (this.newComment) {
await this.createBlubberComment({
threadId: this.threadId,
content: this.newComment
});
this.newComment = '';
} else {
this.companionInfo({ info: this.$gettext('Leere Beiträge können nicht erstellt werden.') });
}
},
scrollDown() {
this.$nextTick( () => {
let ref = this.$refs["commentsRef"];
if (ref) {
ref.scrollTop = ref.scrollHeight;
}
});
},
async loadThread(threadId) {
await this.loadBlubberThread({ threadId: threadId});
this.$emit('threadContent', this.threadTitle);
},
answerComment(content) {
this.newComment = content;
this.$refs.composer.focus();
},
editingComment(event) {
this.editingComments = event;
},
editPreviousComment() {
const comments = this.threadComments;
if (comments.length > 0) {
this.editingComments = comments[comments.length - 1].id;
}
}
},
mounted() {
this.$nextTick(async() => {
if (this.threadId) {
await this.loadThread(this.threadId);
this.loadingThreads = false;
this.scrollDown();
JSUpdater.register('blubber', () => this.loadThread(this.threadId), { threads: [this.threadId] });
}
});
},
watch: {
threadId(newId) {
if (newId) {
this.loadThread(newId);
}
},
threadComments(newComments, oldComments) {
if (newComments.length !== oldComments.length && !this.editingComments) {
this.scrollDown();
}
}
}
}
</script>
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