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coconut-leaf/frontend/src/components/DateTimePicker.vue

679 lines
22 KiB
Vue

<script lang="ts">
export enum TabType {
Year,
Month,
Day,
Hour,
Minute
}
</script>
<script setup lang="ts">
import { computed, onMounted, onUnmounted, ref } from 'vue';
import {
MAX_DATETIME,
MIN_DATETIME,
MIN_YEAR,
MAX_YEAR,
MONTH_DAY_COUNT,
dayOfWeek,
isLeapYear
} from '@/utils/datetime';
const DIAL_PLATE_WIDTH: number = 200;
const DIAL_PLATE_RADIUS: number = DIAL_PLATE_WIDTH / 2;
const DIAL_PLATE_HOUR_INNER_PERCENT: number = 0.6;
const DIAL_PLATE_HOUR_OUTTER_PERCENT: number = 0.8;
const DIAL_PLATE_HOUR_DISTINGUISH_PERCENT: number = 0.7;
const DIAL_PLATE_MINUTE_PERCENT: number = 0.8;
const DIAL_PLATE_HOUR_RESOLUTION: number = Math.PI * 2 / 12;
const DIAL_PLATE_MINUTE_RESOLUTION: number = Math.PI * 2 / 60;
const MONTH_NAMES: string[] = [
'January', 'February', 'March', 'April', 'May', 'June',
'July', 'August', 'September', 'October', 'November', 'December'
];
const WEEK_NAMES: string[] = [
'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday'
];
const NBSP: string = '\u00A0';
const isVisible = ref(false);
const currentTab = ref<TabType>(TabType.Year);
const mode = ref<TabType>(TabType.Day);
const svgFontScale = ref<number>(1);
let enableHourDrag = false;
let enableMinuteDrag = false;
const internalDateTime = ref<Date>(new Date());
const displayCacheDateTime = ref<Date>(new Date());
const pickerContainerRef = ref<HTMLElement>();
const hourSvgRef = ref<SVGSVGElement>();
const minuteSvgRef = ref<SVGSVGElement>();
// region: Exported API and Signals
const emit = defineEmits<{
(e: 'confirm', date: Date): void
(e: 'cancel'): void
}>();
const clampDateTime = (d: Date): void => {
if (d < MIN_DATETIME) d.setTime(MIN_DATETIME.getTime());
if (d >= MAX_DATETIME) d.setTime(MAX_DATETIME.getTime());
};
const switchTab = (newTab: TabType): void => {
displayCacheDateTime.value = new Date(internalDateTime.value);
currentTab.value = newTab;
};
const modal = (initialDate: Date, _mode: TabType): void => {
mode.value = _mode;
const d = new Date(initialDate);
clampDateTime(d);
internalDateTime.value = new Date(d);
displayCacheDateTime.value = new Date(d);
isVisible.value = true;
switchTab(_mode);
};
const confirm = (): void => {
isVisible.value = false;
emit('confirm', new Date(internalDateTime.value));
};
const cancel = (): void => {
isVisible.value = false;
emit('cancel');
};
defineExpose({ modal });
// endregion
// region: Mutator helpers
// Vue does not track in-place Date mutation, so every change clones, mutates,
// clamps, and reassigns the ref to trigger reactivity.
const updateDisplay = (mutator: (d: Date) => void): void => {
const d = new Date(displayCacheDateTime.value);
mutator(d);
clampDateTime(d);
displayCacheDateTime.value = d;
};
const updateInternal = (mutator: (d: Date) => void): void => {
const d = new Date(internalDateTime.value);
mutator(d);
clampDateTime(d);
internalDateTime.value = d;
};
// endregion
// region: Computed views (replaces legacy imperative RefreshDisplay)
const visibleTabs = computed<Set<TabType>>(() => {
const s = new Set<TabType>();
if (mode.value >= TabType.Year) s.add(TabType.Year);
if (mode.value >= TabType.Month) s.add(TabType.Month);
if (mode.value >= TabType.Day) s.add(TabType.Day);
if (mode.value >= TabType.Hour) s.add(TabType.Hour);
if (mode.value >= TabType.Minute) s.add(TabType.Minute);
return s;
});
const headerParts = computed(() => ({
year: internalDateTime.value.getFullYear(),
month: internalDateTime.value.getMonth() + 1,
day: internalDateTime.value.getDate(),
hour: internalDateTime.value.getHours(),
minute: internalDateTime.value.getMinutes(),
}));
const yearPageStart = computed<number>(() => {
const y = displayCacheDateTime.value.getFullYear();
return Math.floor((y - MIN_YEAR) / 12) * 12 + MIN_YEAR;
});
const yearCells = computed<{ value: number | undefined; picked: boolean }[]>(() => {
const start = yearPageStart.value;
const internalYear = internalDateTime.value.getFullYear();
const cells: { value: number | undefined; picked: boolean }[] = [];
for (let i = 0; i < 12; i++) {
const counter = start + i;
if (counter < MAX_YEAR) {
cells.push({ value: counter, picked: counter === internalYear });
} else {
cells.push({ value: undefined, picked: false });
}
}
return cells;
});
const yearRows = computed<{ value: number | undefined; picked: boolean }[][]>(() => {
const cells = yearCells.value;
const rows: { value: number | undefined; picked: boolean }[][] = [];
for (let i = 0; i < 3; i++) rows.push(cells.slice(i * 4, i * 4 + 4));
return rows;
});
const yearTitle = computed<string>(() => {
const start = yearPageStart.value;
return `${start} - ${Math.min(start + 12, MAX_YEAR)}`;
});
const pickedMonthIndex = computed<number>(() => {
if (internalDateTime.value.getFullYear() === displayCacheDateTime.value.getFullYear()) {
return internalDateTime.value.getMonth();
}
return -1;
});
const monthCells = computed<{ index: number; name: string; picked: boolean }[]>(() => {
const picked = pickedMonthIndex.value;
const cells: { index: number; name: string; picked: boolean }[] = [];
for (let i = 0; i < 12; i++) {
cells.push({ index: i, name: MONTH_NAMES[i]!, picked: i === picked });
}
return cells;
});
const monthRows = computed<{ index: number; name: string; picked: boolean }[][]>(() => {
const cells = monthCells.value;
const rows: { index: number; name: string; picked: boolean }[][] = [];
for (let i = 0; i < 3; i++) rows.push(cells.slice(i * 4, i * 4 + 4));
return rows;
});
const monthTitle = computed<number>(() => displayCacheDateTime.value.getFullYear());
const dayGrid = computed<{ value: number | undefined; picked: boolean }[][]>(() => {
const y = displayCacheDateTime.value.getFullYear();
const m = displayCacheDateTime.value.getMonth() + 1;
const firstDow = dayOfWeek(y, m, 1);
const daysInMonth = MONTH_DAY_COUNT[m - 1]! + (m === 2 && isLeapYear(y) ? 1 : 0);
const internalDay = internalDateTime.value.getDate();
const rows: { value: number | undefined; picked: boolean }[][] = [];
let counter = -firstDow;
for (let i = 0; i < 6; i++) {
const row: { value: number | undefined; picked: boolean }[] = [];
for (let j = 0; j < 7; j++, counter++) {
if (counter < 0 || counter >= daysInMonth) {
row.push({ value: undefined, picked: false });
} else {
const dayNum = counter + 1;
row.push({ value: dayNum, picked: dayNum === internalDay });
}
}
rows.push(row);
}
return rows;
});
const dayTitle = computed<string>(() => {
const y = displayCacheDateTime.value.getFullYear();
const m = displayCacheDateTime.value.getMonth();
return `${y} - ${MONTH_NAMES[m]!}`;
});
const hourHand = computed(() => {
const h = displayCacheDateTime.value.getHours();
const angle = (3 - h) * DIAL_PLATE_HOUR_RESOLUTION;
const radius = DIAL_PLATE_RADIUS * (h < 12 ? DIAL_PLATE_HOUR_OUTTER_PERCENT : DIAL_PLATE_HOUR_INNER_PERCENT);
const x = Math.cos(angle) * radius + DIAL_PLATE_RADIUS;
const y = (-Math.sin(angle) * radius) + DIAL_PLATE_RADIUS;
return { x2: x, y2: y, cx: x, cy: y };
});
const minuteHand = computed(() => {
const mi = displayCacheDateTime.value.getMinutes();
const angle = (15 - mi) * DIAL_PLATE_MINUTE_RESOLUTION;
const radius = DIAL_PLATE_RADIUS * DIAL_PLATE_MINUTE_PERCENT;
const x = Math.cos(angle) * radius + DIAL_PLATE_RADIUS;
const y = (-Math.sin(angle) * radius) + DIAL_PLATE_RADIUS;
return { x2: x, y2: y, cx: x, cy: y };
});
// endregion
// region: Navigation and click handlers
const prevNextYear = (isPrev: boolean): void => {
updateDisplay((d) => d.setFullYear(d.getFullYear() + (isPrev ? -12 : 12)));
};
// NOTE: legacy PrevNextMonth actually shifts the YEAR (the month panel browses years).
const prevNextMonth = (isPrev: boolean): void => {
updateDisplay((d) => d.setFullYear(d.getFullYear() + (isPrev ? -1 : 1)));
};
// NOTE: legacy PrevNextDay actually shifts the MONTH (the day panel browses months).
const prevNextDay = (isPrev: boolean): void => {
updateDisplay((d) => d.setMonth(d.getMonth() + (isPrev ? -1 : 1)));
};
const clickYear = (value: number | undefined): void => {
if (value === undefined) return;
updateInternal((d) => d.setFullYear(value));
if (mode.value !== TabType.Year) switchTab(TabType.Month);
};
const clickMonth = (monthIndex: number): void => {
updateInternal((d) => {
d.setFullYear(displayCacheDateTime.value.getFullYear());
d.setMonth(monthIndex);
});
if (mode.value !== TabType.Month) switchTab(TabType.Day);
};
const clickDay = (day: number | undefined): void => {
if (day === undefined) return;
updateInternal((d) => {
d.setFullYear(displayCacheDateTime.value.getFullYear());
d.setMonth(displayCacheDateTime.value.getMonth());
d.setDate(day);
});
if (mode.value !== TabType.Day) switchTab(TabType.Hour);
};
// endregion
// region: Dial drag interaction
const getUniformedXY = (e: MouseEvent | TouchEvent, el: Element): { x: number; y: number } => {
const rect = el.getBoundingClientRect();
const halfWidth = rect.width / 2;
const halfHeight = rect.height / 2;
const halfSquare = Math.min(rect.width, rect.height) / 2;
let clientX = 0;
let clientY = 0;
const te = e as TouchEvent;
const me = e as MouseEvent;
if (te.targetTouches && te.targetTouches.length >= 1) {
clientX = te.targetTouches[0]!.clientX;
clientY = te.targetTouches[0]!.clientY;
} else {
clientX = me.clientX;
clientY = me.clientY;
}
const x = ((clientX - rect.left - halfWidth) / halfSquare) * DIAL_PLATE_RADIUS;
const y = -(((clientY - rect.top - halfHeight) / halfSquare) * DIAL_PLATE_RADIUS);
return { x, y };
};
const startDragHour = (): void => { enableHourDrag = true; };
const draggingHour = (e: MouseEvent | TouchEvent): void => {
if (!enableHourDrag || !hourSvgRef.value) return;
const { x, y } = getUniformedXY(e, hourSvgRef.value);
const distance = Math.sqrt(x * x + y * y);
let angle = Math.acos(x / distance);
if (y < 0) angle = Math.PI * 2 - angle;
angle += DIAL_PLATE_HOUR_RESOLUTION / 2;
if (angle > Math.PI * 2) angle -= Math.PI * 2;
let number = Math.floor(angle / DIAL_PLATE_HOUR_RESOLUTION);
if (number >= 12) number = 11;
number = (15 - number) % 12;
if (distance < DIAL_PLATE_RADIUS * DIAL_PLATE_HOUR_DISTINGUISH_PERCENT) number += 12;
if (displayCacheDateTime.value.getHours() !== number) {
updateDisplay((d) => d.setHours(number));
}
e.preventDefault();
};
const stopDragHour = (): void => {
enableHourDrag = false;
updateInternal((d) => d.setHours(displayCacheDateTime.value.getHours()));
if (mode.value !== TabType.Hour) switchTab(TabType.Minute);
};
const startDragMinute = (): void => { enableMinuteDrag = true; };
const draggingMinute = (e: MouseEvent | TouchEvent): void => {
if (!enableMinuteDrag || !minuteSvgRef.value) return;
const { x, y } = getUniformedXY(e, minuteSvgRef.value);
const distance = Math.sqrt(x * x + y * y);
let angle = Math.acos(x / distance);
if (y < 0) angle = Math.PI * 2 - angle;
angle += DIAL_PLATE_MINUTE_RESOLUTION / 2;
if (angle > Math.PI * 2) angle -= Math.PI * 2;
let number = Math.floor(angle / DIAL_PLATE_MINUTE_RESOLUTION);
if (number >= 60) number = 59;
number = (75 - number) % 60;
if (displayCacheDateTime.value.getMinutes() !== number) {
updateDisplay((d) => d.setMinutes(number));
}
e.preventDefault();
};
const stopDragMinute = (): void => {
enableMinuteDrag = false;
updateInternal((d) => d.setMinutes(displayCacheDateTime.value.getMinutes()));
};
// endregion
// region: Lifecycle - SVG font-size scaling
let resizeObserver: ResizeObserver | null = null;
onMounted(() => {
resizeObserver = new ResizeObserver((entries) => {
for (const entry of entries) {
const w = entry.contentRect.width;
const h = entry.contentRect.height;
if (w > 0 && h > 0) svgFontScale.value = 200 / Math.min(w, h);
}
});
if (pickerContainerRef.value) resizeObserver.observe(pickerContainerRef.value);
});
onUnmounted(() => {
resizeObserver?.disconnect();
resizeObserver = null;
});
// endregion
</script>
<template>
<div class="modal" :class="{ 'is-active': isVisible }"
style="float: left; position: fixed; top: 0; bottom: 0; left: 0; right: 0;">
<div class="modal-background"></div>
<div class="modal-card" style="height: 70%;">
<header class="modal-card-head pickerHeader">
<div v-show="visibleTabs.has(TabType.Year)" @click="switchTab(TabType.Year)">
<small>Year</small><span>{{ headerParts.year }}</span>
</div>
<div v-show="visibleTabs.has(TabType.Month)" @click="switchTab(TabType.Month)">
<small>Month</small><span>{{ headerParts.month }}</span>
</div>
<div v-show="visibleTabs.has(TabType.Day)" @click="switchTab(TabType.Day)">
<small>Day</small><span>{{ headerParts.day }}</span>
</div>
<div v-show="visibleTabs.has(TabType.Hour)" @click="switchTab(TabType.Hour)">
<small>Hour</small><span>{{ headerParts.hour }}</span>
</div>
<div v-show="visibleTabs.has(TabType.Minute)" @click="switchTab(TabType.Minute)">
<small>Minute</small><span>{{ headerParts.minute }}</span>
</div>
</header>
<div class="modal-card-body pickerContainer" ref="pickerContainerRef">
<div v-show="currentTab === TabType.Year">
<nav class="level is-mobile">
<div class="level-left">
<div class="level-item control">
<a class="button" @click="prevNextYear(true)">
<span class="icon is-small"><i class="fas fa-chevron-circle-left"></i></span>
</a>
</div>
</div>
<div class="level-item">{{ yearTitle }}</div>
<div class="level-right">
<div class="level-item control">
<a class="button" @click="prevNextYear(false)">
<span class="icon is-small"><i class="fas fa-chevron-circle-right"></i></span>
</a>
</div>
</div>
</nav>
<div class="perfectTable">
<div v-for="(row, ri) in yearRows" :key="ri">
<div v-for="(cell, ci) in row" :key="ci"
:class="{ picked: cell.picked }"
@click="clickYear(cell.value)">{{ cell.value ?? NBSP }}</div>
</div>
</div>
</div>
<div v-show="currentTab === TabType.Month">
<nav class="level is-mobile">
<div class="level-left">
<div class="level-item control">
<a class="button" @click="prevNextMonth(true)">
<span class="icon is-small"><i class="fas fa-chevron-circle-left"></i></span>
</a>
</div>
</div>
<div class="level-item">{{ monthTitle }}</div>
<div class="level-right">
<div class="level-item control">
<a class="button" @click="prevNextMonth(false)">
<span class="icon is-small"><i class="fas fa-chevron-circle-right"></i></span>
</a>
</div>
</div>
</nav>
<div class="perfectTable">
<div v-for="(row, ri) in monthRows" :key="ri">
<div v-for="(cell, ci) in row" :key="ci"
:class="{ picked: cell.picked }"
@click="clickMonth(cell.index)">{{ cell.name }}</div>
</div>
</div>
</div>
<div v-show="currentTab === TabType.Day">
<nav class="level is-mobile">
<div class="level-left">
<div class="level-item control">
<a class="button" @click="prevNextDay(true)">
<span class="icon is-small"><i class="fas fa-chevron-circle-left"></i></span>
</a>
</div>
</div>
<div class="level-item">{{ dayTitle }}</div>
<div class="level-right">
<div class="level-item control">
<a class="button" @click="prevNextDay(false)">
<span class="icon is-small"><i class="fas fa-chevron-circle-right"></i></span>
</a>
</div>
</div>
</nav>
<div class="perfectTable">
<div>
<div v-for="(name, wi) in WEEK_NAMES" :key="wi">{{ name }}</div>
</div>
<div v-for="(row, ri) in dayGrid" :key="ri">
<div v-for="(cell, ci) in row" :key="ci"
:class="{ picked: cell.picked }"
@click="clickDay(cell.value)">{{ cell.value ?? NBSP }}</div>
</div>
</div>
</div>
<svg v-show="currentTab === TabType.Hour" ref="hourSvgRef"
xmlns="http://www.w3.org/2000/svg" version="1.1"
preserveAspectRatio="xMidYMid" viewBox="0 0 200 200"
:style="{ fontSize: svgFontScale + 'em' }"
@mousedown="startDragHour" @mousemove="draggingHour" @mouseup="stopDragHour"
@touchstart="startDragHour" @touchmove="draggingHour" @touchend="stopDragHour">
<circle cx="100.000000" cy="100.000000" r="100.000000" type="background"></circle>
<line x1="100" y1="100" :x2="hourHand.x2" :y2="hourHand.y2"></line>
<circle :cx="hourHand.cx" :cy="hourHand.cy" r="1em" type="symbol"></circle>
<text x="100.000000" y="20.000000">0</text>
<text x="140.000000" y="30.717968">1</text>
<text x="169.282032" y="60.000000">2</text>
<text x="180.000000" y="100.000000">3</text>
<text x="169.282032" y="140.000000">4</text>
<text x="140.000000" y="169.282032">5</text>
<text x="100.000000" y="180.000000">6</text>
<text x="60.000000" y="169.282032">7</text>
<text x="30.717968" y="140.000000">8</text>
<text x="20.000000" y="100.000000">9</text>
<text x="30.717968" y="60.000000">10</text>
<text x="60.000000" y="30.717968">11</text>
<text x="100.000000" y="40.000000">12</text>
<text x="130.000000" y="48.038476">13</text>
<text x="151.961524" y="70.000000">14</text>
<text x="160.000000" y="100.000000">15</text>
<text x="151.961524" y="130.000000">16</text>
<text x="130.000000" y="151.961524">17</text>
<text x="100.000000" y="160.000000">18</text>
<text x="70.000000" y="151.961524">19</text>
<text x="48.038476" y="130.000000">20</text>
<text x="40.000000" y="100.000000">21</text>
<text x="48.038476" y="70.000000">22</text>
<text x="70.000000" y="48.038476">23</text>
</svg>
<svg v-show="currentTab === TabType.Minute" ref="minuteSvgRef"
xmlns="http://www.w3.org/2000/svg" version="1.1"
preserveAspectRatio="xMidYMid" viewBox="0 0 200 200"
:style="{ fontSize: svgFontScale + 'em' }"
@mousedown="startDragMinute" @mousemove="draggingMinute" @mouseup="stopDragMinute"
@touchstart="startDragMinute" @touchmove="draggingMinute" @touchend="stopDragMinute">
<circle cx="100.000000" cy="100.000000" r="100.000000" type="background"></circle>
<line x1="100" y1="100" :x2="minuteHand.x2" :y2="minuteHand.y2"></line>
<circle :cx="minuteHand.cx" :cy="minuteHand.cy" r="1em" type="symbol"></circle>
<text x="100.000000" y="20.000000">0</text>
<text x="140.000000" y="30.717968">5</text>
<text x="169.282032" y="60.000000">10</text>
<text x="180.000000" y="100.000000">15</text>
<text x="169.282032" y="140.000000">20</text>
<text x="140.000000" y="169.282032">25</text>
<text x="100.000000" y="180.000000">30</text>
<text x="60.000000" y="169.282032">35</text>
<text x="30.717968" y="140.000000">40</text>
<text x="20.000000" y="100.000000">45</text>
<text x="30.717968" y="60.000000">50</text>
<text x="60.000000" y="30.717968">55</text>
</svg>
</div>
<footer class="modal-card-foot">
<a class="button is-success" @click="confirm">
<span>OK</span>
</a>
<a class="button" @click="cancel">
<span>Cancel</span>
</a>
</footer>
</div>
</div>
</template>
<style scoped>
div.perfectTable {
display: flex;
flex-flow: column;
}
/*
div.perfectTable > div > div:nth-child(1) {
border-left: 1px solid black;
}
div.perfectTable > div:nth-child(1) > div {
border-top: 1px solid black;
}
*/
div.perfectTable>div>div {
/*border-top: 0 solid black;
border-left: 0 solid black;
border-right: 1px solid black;
border-bottom: 1px solid black;
padding: 0.75em;*/
flex-grow: 1;
flex-basis: 0;
flex-shrink: 0;
overflow: hidden;
display: flex;
justify-content: center;
padding-top: 1rem;
padding-bottom: 1rem;
}
div.perfectTable>div {
display: flex;
flex-flow: row;
}
div.perfectTable>div>div.picked {
background: hsl(171, 100%, 41%);
color: #fff;
}
div.pickerContainer {
display: flex;
align-items: center;
flex-flow: row;
justify-content: center;
}
div.pickerContainer>div {
flex-grow: 1;
flex-shrink: 1;
flex-basis: 0;
}
div.pickerContainer>svg {
width: 100%;
height: 100%;
}
div.pickerContainer>svg>text {
dominant-baseline: middle;
text-anchor: middle;
user-select: none;
cursor: default;
}
div.pickerContainer>svg>circle[type=background] {
stroke-width: 0;
fill: #d0d0d0;
}
div.pickerContainer>svg>circle[type=symbol] {
stroke-width: 0;
fill: hsl(171, 100%, 41%);
/* $primary */
}
div.pickerContainer>svg>line {
stroke-width: 0.125em;
stroke: hsl(171, 100%, 41%);
/* $primary */
}
header.pickerHeader {
display: flex;
flex-flow: row;
flex-grow: 0;
flex-basis: 0;
flex-shrink: 0;
justify-content: space-between;
}
header.pickerHeader>div {
display: flex;
flex-flow: column;
flex-grow: 1;
flex-basis: 0;
flex-shrink: 0;
}
</style>