@vuetify/nightly/lib/labs/VCalendar/composables/times.js

Vue Material Component Framework

// Utilities
import { computed, reactive, watch } from 'vue';
import { parseDate, parseTimestamp, validateTimestamp } from "../util/timestamp.js"; // Types
export function useTimes(props) {
  const times = reactive({
    now: parseTimestamp('0000-00-00 00:00', true),
    today: parseTimestamp('0000-00-00', true)
  });
  const parsedNow = computed(() => {
    return props.now && validateTimestamp(props.now) ? parseTimestamp(props.now, true) : null;
  });
  function setPresent() {
    times.now.present = times.today.present = true;
    times.now.past = times.today.past = false;
    times.now.future = times.today.future = false;
  }
  function getNow() {
    return parseDate(new Date());
  }
  function updateDay(now, target) {
    if (now.date !== target.date) {
      target.year = now.year;
      target.month = now.month;
      target.day = now.day;
      target.weekday = now.weekday;
      target.date = now.date;
    }
  }
  function updateTime(now, target) {
    if (now.time !== target.time) {
      target.hour = now.hour;
      target.minute = now.minute;
      target.time = now.time;
    }
  }
  function updateTimes() {
    const now = parsedNow.value || getNow();
    updateDay(now, times.now);
    updateTime(now, times.now);
    updateDay(now, times.today);
  }
  watch(parsedNow, updateTimes);
  updateTimes();
  setPresent();
  return {
    times,
    parsedNow,
    updateTimes,
    setPresent,
    getNow,
    updateDay,
    updateTime
  };
}
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