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Mixins\nimport DatePickerTable from './mixins/date-picker-table'\n\n// Utils\nimport { pad, createNativeLocaleFormatter, monthChange } from './util'\nimport { createRange } from '../../util/helpers'\nimport mixins from '../../util/mixins'\n\n// Types\nimport { DatePickerFormatter } from './util/createNativeLocaleFormatter'\nimport { PropValidator } from 'vue/types/options'\nimport { VNode, VNodeChildren } from 'vue'\n\nexport default mixins(\n  DatePickerTable\n/* @vue/component */\n).extend({\n  name: 'v-date-picker-date-table',\n\n  props: {\n    firstDayOfWeek: {\n      type: [String, Number],\n      default: 0\n    },\n    showWeek: Boolean,\n    weekdayFormat: Function as PropValidator<DatePickerFormatter | undefined>\n  },\n\n  computed: {\n    formatter (): DatePickerFormatter {\n      return this.format || createNativeLocaleFormatter(this.locale, { day: 'numeric', timeZone: 'UTC' }, { start: 8, length: 2 })\n    },\n    weekdayFormatter (): DatePickerFormatter | undefined {\n      return this.weekdayFormat || createNativeLocaleFormatter(this.locale, { weekday: 'narrow', timeZone: 'UTC' })\n    },\n    weekDays (): string[] {\n      const first = parseInt(this.firstDayOfWeek, 10)\n\n      return this.weekdayFormatter\n        ? createRange(7).map(i => this.weekdayFormatter!(`2017-01-${first + i + 15}`)) // 2017-01-15 is Sunday\n        : createRange(7).map(i => ['S', 'M', 'T', 'W', 'T', 'F', 'S'][(i + first) % 7])\n    }\n  },\n\n  methods: {\n    calculateTableDate (delta: number) {\n      return monthChange(this.tableDate, Math.sign(delta || 1))\n    },\n    genTHead () {\n      const days = this.weekDays.map(day => this.$createElement('th', day))\n      this.showWeek && days.unshift(this.$createElement('th'))\n      return this.$createElement('thead', this.genTR(days))\n    },\n    // Returns number of the days from the firstDayOfWeek to the first day of the current month\n    weekDaysBeforeFirstDayOfTheMonth () {\n      const firstDayOfTheMonth = new Date(`${this.displayedYear}-${pad(this.displayedMonth + 1)}-01T00:00:00+00:00`)\n      const weekDay = firstDayOfTheMonth.getUTCDay()\n      return (weekDay - parseInt(this.firstDayOfWeek) + 7) % 7\n    },\n    getWeekNumber () {\n      let dayOfYear = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334][this.displayedMonth]\n      if (this.displayedMonth > 1 &&\n        (((this.displayedYear % 4 === 0) && (this.displayedYear % 100 !== 0)) || (this.displayedYear % 400 === 0))\n      ) {\n        dayOfYear++\n      }\n      const offset = (\n        this.displayedYear +\n        ((this.displayedYear - 1) >> 2) -\n        Math.floor((this.displayedYear - 1) / 100) +\n        Math.floor((this.displayedYear - 1) / 400) -\n        Number(this.firstDayOfWeek)\n      ) % 7 // https://en.wikipedia.org/wiki/Zeller%27s_congruence\n      return Math.floor((dayOfYear + offset) / 7) + 1\n    },\n    genWeekNumber (weekNumber: number) {\n      return this.$createElement('td', [\n        this.$createElement('small', {\n          staticClass: 'v-date-picker-table--date__week'\n        }, String(weekNumber).padStart(2, '0'))\n      ])\n    },\n    genTBody () {\n      const children = []\n      const daysInMonth = new Date(this.displayedYear, this.displayedMonth + 1, 0).getDate()\n      let rows = []\n      let day = this.weekDaysBeforeFirstDayOfTheMonth()\n      let weekNumber = this.getWeekNumber()\n\n      this.showWeek && rows.push(this.genWeekNumber(weekNumber++))\n\n      while (day--) rows.push(this.$createElement('td'))\n      for (day = 1; day <= daysInMonth; day++) {\n        const date = `${this.displayedYear}-${pad(this.displayedMonth + 1)}-${pad(day)}`\n\n        rows.push(this.$createElement('td', [\n          this.genButton(date, true, 'date', this.formatter)\n        ]))\n\n        if (rows.length % (this.showWeek ? 8 : 7) === 0) {\n          children.push(this.genTR(rows))\n          rows = []\n          day < daysInMonth && this.showWeek && rows.push(this.genWeekNumber(weekNumber++))\n        }\n      }\n\n      if (rows.length) {\n        children.push(this.genTR(rows))\n      }\n\n      return this.$createElement('tbody', children)\n    },\n    genTR (children: VNodeChildren) {\n      return [this.$createElement('tr', children)]\n    }\n  },\n\n  render (): VNode {\n    return this.genTable('v-date-picker-table v-date-picker-table--date', [\n      this.genTHead(),\n      this.genTBody()\n    ], this.calculateTableDate)\n  }\n})\n"],"sourceRoot":""}