wip

lib/components/SDatePicker.vue

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+<script setup lang="ts">
+import IconCaretLeft from '~icons/ph/caret-left-bold'
+import IconCaretRight from '~icons/ph/caret-right-bold'
+import { computed, nextTick, reactive, ref } from 'vue'
+
+const labels = ['S', 'M', 'T', 'W', 'T', 'F', 'S'] as const
+const keys: readonly string[] = ['Enter', ' ', 'ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight']
+
+const today = {
+  day: new Date().getDate(),
+  month: new Date().getMonth() + 1,
+  year: new Date().getFullYear()
+} as const
+
+const curr = reactive({ ...today })
+const selected = reactive({ ...today })
+
+const description = computed(() =>
+  new Date(curr.year, curr.month - 1).toLocaleString('default', { month: 'long', year: 'numeric' })
+)
+
+const firstDay = computed(() => new Date(curr.year, curr.month - 1, 1).getDay())
+const totalDays = computed(() => new Date(curr.year, curr.month, 0).getDate())
+
+const isSelectedVisible = computed(
+  () => curr.month === selected.month && curr.year === selected.year
+)
+
+const daysEl = ref<HTMLElement>()
+
+const keyActions: Record<string, () => void> = {
+  ArrowUp: getPrevWeek,
+  ArrowDown: getNextWeek,
+  ArrowLeft: getPrevDay,
+  ArrowRight: getNextDay
+}
+
+async function onKeydown(e: KeyboardEvent): Promise<void> {
+  const focusedDay = document.activeElement as HTMLElement | null
+  if (!focusedDay || !keys.includes(e.key)) { return }
+
+  e.preventDefault()
+
+  if (e.key === 'Enter' || e.key === ' ') {
+    focusedDay.click()
+    return
+  }
+
+  keyActions[e.key]()
+  await nextTick()
+
+  const el = daysEl.value?.children[firstDay.value + curr.day - 1] as HTMLElement | null
+  if (el) { el.focus() }
+}
+
+function onSelected(day: number): void {
+  selected.day = day
+  selected.month = curr.month
+  selected.year = curr.year
+}
+
+function getPrevWeek() {
+  if (curr.day <= 7) {
+    prevMonth()
+    curr.day += totalDays.value - 7
+  } else {
+    curr.day -= 7
+  }
+}
+
+function getNextWeek() {
+  const remainingDaysInMonth = totalDays.value - curr.day
+
+  if (remainingDaysInMonth < 7) {
+    nextMonth()
+    curr.day = 7 - remainingDaysInMonth
+  } else {
+    curr.day += 7
+  }
+}
+
+function getPrevDay() {
+  if (curr.day === 1) {
+    prevMonth()
+    curr.day = totalDays.value
+  } else {
+    curr.day--
+  }
+}
+
+function getNextDay() {
+  if (curr.day === totalDays.value) {
+    nextMonth()
+    curr.day = 1
+  } else {
+    curr.day++
+  }
+}
+
+function prevMonth(): void {
+  if (curr.month === 1) {
+    curr.month = 12
+    curr.year--
+  } else {
+    curr.month--
+  }
+}
+
+function nextMonth(): void {
+  if (curr.month === 12) {
+    curr.month = 1
+    curr.year++
+  } else {
+    curr.month++
+  }
+}
+
+function isToday(day: number): boolean {
+  return day === today.day && curr.month === today.month && curr.year === today.year
+}
+
+function isSelected(day: number): boolean {
+  return day === selected.day && curr.month === selected.month && curr.year === selected.year
+}
+
+function isFocusable(day: number): boolean {
+  return isSelected(day) || (!isSelectedVisible.value && day === 1)
+}
+</script>
+
+<template>
+  <div class="SDatePicker" @keydown="onKeydown">
+    <div class="header">
+      <button type="button" @click="prevMonth"><IconCaretLeft /></button>
+      <span>{{ description }}</span>
+      <button type="button" @click="nextMonth"><IconCaretRight /></button>
+    </div>
+    <div class="labels grid">
+      <div v-for="day in labels" :key="day">{{ day }}</div>
+    </div>
+    <div class="days grid" ref="daysEl">
+      <div v-for="i in firstDay" :key="i" />
+      <div
+        v-for="day in totalDays"
+        :key="day"
+        :class="{ today: isToday(day), selected: isSelected(day) }"
+        class="day"
+        :tabindex="isFocusable(day) ? 0 : -1"
+        @click="onSelected(day)"
+        @focus="curr.day = day"
+      >
+        {{ day }}
+      </div>
+    </div>
+  </div>
+</template>
+
+<style scoped lang="postcss">
+.SDatePicker {
+  display: flex;
+  flex-direction: column;
+  width: fit-content;
+  background: var(--c-bg-elv-3);
+  border: 1px solid var(--c-divider);
+  border-radius: 6px;
+  font-size: 14px;
+  font-weight: 400;
+  line-height: 20px;
+  color: var(--c-text-1);
+  text-align: center;
+}
+
+.grid {
+  display: grid;
+  grid-template-columns: repeat(7, 1fr);
+  grid-gap: 8px;
+  padding: 8px;
+
+  > div {
+    width: 28px;
+    padding: 4px;
+  }
+}
+
+.header {
+  display: flex;
+  justify-content: space-between;
+  padding: 10px 16px 8px;
+  border-bottom: 1px solid var(--c-gutter);
+}
+
+.labels {
+  padding-bottom: 0;
+  font-weight: 600;
+  color: var(--c-text-3);
+}
+
+.day {
+  cursor: pointer;
+  border-radius: 4px;
+
+  &.today:not(.selected) {
+    position: relative;
+
+    &::after {
+      content: '';
+      position: absolute;
+      bottom: 0;
+      left: 50%;
+      transform: translateX(-50%);
+      width: 4px;
+      height: 4px;
+      background-color: var(--c-bg-info-1);
+      border-radius: 50%;
+    }
+  }
+
+  &.selected {
+    background-color: var(--c-bg-info-1);
+    color: var(--c-text-dark-1);
+  }
+}
+</style>

stories/components/SDatePicker.01_Playground.story.vue

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+<script setup lang="ts">
+import SDatePicker from 'sefirot/components/SDatePicker.vue'
+
+const title = 'Components / SDatePicker / 01. Playground'
+</script>
+
+<template>
+  <Story :title="title" source="Not available" auto-props-disabled>
+    <template #default>
+      <Board :title="title">
+        <SDatePicker />
+      </Board>
+    </template>
+  </Story>
+</template>