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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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}); |