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57 lines
1.6 KiB
57 lines
1.6 KiB
import { D, W, Y } from '../../constant';
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var isoWeekPrettyUnit = 'isoweek';
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export default (function (o, c, d) {
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var getYearFirstThursday = function getYearFirstThursday(year, isUtc) {
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var yearFirstDay = (isUtc ? d.utc : d)().year(year).startOf(Y);
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var addDiffDays = 4 - yearFirstDay.isoWeekday();
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if (yearFirstDay.isoWeekday() > 4) {
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addDiffDays += 7;
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}
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return yearFirstDay.add(addDiffDays, D);
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};
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var getCurrentWeekThursday = function getCurrentWeekThursday(ins) {
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return ins.add(4 - ins.isoWeekday(), D);
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};
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var proto = c.prototype;
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proto.isoWeekYear = function () {
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var nowWeekThursday = getCurrentWeekThursday(this);
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return nowWeekThursday.year();
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};
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proto.isoWeek = function (week) {
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if (!this.$utils().u(week)) {
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return this.add((week - this.isoWeek()) * 7, D);
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}
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var nowWeekThursday = getCurrentWeekThursday(this);
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var diffWeekThursday = getYearFirstThursday(this.isoWeekYear(), this.$u);
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return nowWeekThursday.diff(diffWeekThursday, W) + 1;
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};
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proto.isoWeekday = function (week) {
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if (!this.$utils().u(week)) {
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return this.day(this.day() % 7 ? week : week - 7);
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}
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return this.day() || 7;
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};
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var oldStartOf = proto.startOf;
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proto.startOf = function (units, startOf) {
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var utils = this.$utils();
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var isStartOf = !utils.u(startOf) ? startOf : true;
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var unit = utils.p(units);
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if (unit === isoWeekPrettyUnit) {
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return isStartOf ? this.date(this.date() - (this.isoWeekday() - 1)).startOf('day') : this.date(this.date() - 1 - (this.isoWeekday() - 1) + 7).endOf('day');
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}
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return oldStartOf.bind(this)(units, startOf);
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};
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});
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