78 lines
2.6 KiB
JavaScript
78 lines
2.6 KiB
JavaScript
import React, { useMemo, useCallback } from 'react';
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import PropTypes from 'prop-types';
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import { getConfig, history } from '@edx/frontend-platform';
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import CourseBreadcrumbs from './CourseBreadcrumbs';
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import SequenceContainer from './SequenceContainer';
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import { createSequenceIdList } from '../data/utils';
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export default function Course({
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courseUsageKey, courseId, sequenceId, unitId, models,
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}) {
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const breadcrumbs = useMemo(() => {
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const sectionId = models[sequenceId].parentId;
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// TODO: Add unit ID back in here if it exists
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return [courseId, sectionId, sequenceId].map((nodeId) => {
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const node = models[nodeId];
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return {
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id: node.id,
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label: node.displayName,
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url: `${getConfig().LMS_BASE_URL}/courses/${courseUsageKey}/course/#${node.id}`,
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};
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});
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}, [courseUsageKey, courseId, sequenceId, unitId, models]);
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const nextSequenceHandler = useCallback(() => {
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const sequenceIds = createSequenceIdList(models, courseId);
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const currentIndex = sequenceIds.indexOf(sequenceId);
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if (currentIndex < sequenceIds.length - 1) {
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const nextSequenceId = sequenceIds[currentIndex + 1];
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const nextSequence = models[nextSequenceId];
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const nextUnitId = nextSequence.children[0];
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history.push(`/course/${courseUsageKey}/${nextSequenceId}/${nextUnitId}`);
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}
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});
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const previousSequenceHandler = useCallback(() => {
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const sequenceIds = createSequenceIdList(models, courseId);
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const currentIndex = sequenceIds.indexOf(sequenceId);
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if (currentIndex > 0) {
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const previousSequenceId = sequenceIds[currentIndex - 1];
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const previousSequence = models[previousSequenceId];
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const previousUnitId = previousSequence.children[previousSequence.children.length - 1];
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history.push(`/course/${courseUsageKey}/${previousSequenceId}/${previousUnitId}`);
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}
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});
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return (
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<main className="container-fluid d-flex flex-column flex-grow-1">
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<CourseBreadcrumbs links={breadcrumbs} />
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<SequenceContainer
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key={sequenceId}
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courseUsageKey={courseUsageKey}
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courseId={courseId}
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sequenceId={sequenceId}
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unitId={unitId}
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onNext={nextSequenceHandler}
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onPrevious={previousSequenceHandler}
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/>
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</main>
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);
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}
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Course.propTypes = {
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courseUsageKey: PropTypes.string.isRequired,
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courseId: PropTypes.string.isRequired,
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sequenceId: PropTypes.string.isRequired,
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unitId: PropTypes.string,
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models: PropTypes.objectOf(PropTypes.shape({
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id: PropTypes.string.isRequired,
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displayName: PropTypes.string.isRequired,
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})).isRequired,
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};
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Course.defaultProps = {
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sequenceId: null,
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unitId: null,
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};
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