カレンダー:検証 (React)

場合によっては、範囲内のすべての日付が有効であるとは限りません。これらの状況を処理するために、Calendar コントロールにはitemValidatorプロパティがあります。このサンプルでは、このプロパティを使用して一般的な使用例を示します。ユーザーが週末や祝日に日付を選択できないようにします。

このサンプルはReactを使用しています。

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import ReactDOM from 'react-dom/client'; import React, { useState } from 'react'; import useEvent from 'react-use-event-hook'; import * as wijmo from '@mescius/wijmo'; import * as wjInput from '@mescius/wijmo.react.input'; import './app.css'; import { holidays } from './data'; function App() { const [value, setValue] = useState(); const initCalendar = useEvent((sender) => { setValue(sender.value); }); const formatItem = useEvent((sender, e) => { // apply styles to weekends and holidays let weekday = e.data.getDay(), holiday = getHoliday(e.data); wijmo.toggleClass(e.item, 'date-weekend', weekday == 0 || weekday == 6); wijmo.toggleClass(e.item, 'date-holiday', holiday != null); e.item.title = holiday || ''; }); const validator = useEvent((date) => { return (date.getDay() % 6 != 0) && !getHoliday(date); }); // gets the holiday for a given date const getHoliday = (date) => { let day = date.getDate(), month = date.getMonth() + 1, holiday = holidays[(month + '/' + day)]; // if (!holiday) { let weekDay = date.getDay(), weekNum = Math.floor((day - 1) / 7) + 1; holiday = holidays[(month + '/' + weekNum + '/' + weekDay)]; } // return holiday; }; const formatDate = (time) => { if (time) { return wijmo.Globalize.format(time, 'D'); } }; const onValueChanged = useEvent((sender) => { setValue(sender.value); }); return (<div className="container-fluid"> <wjInput.Calendar initialized={initCalendar} formatItem={formatItem} itemValidator={validator} valueChanged={onValueChanged}> </wjInput.Calendar> <div> 現在の日付: <b>{formatDate(value)}</b>. </div> </div>); } const container = document.getElementById('app'); if (container) { const root = ReactDOM.createRoot(container); root.render(<App />); }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo Calendar Validation</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.40/system.src.js" integrity="sha512-G6mEj6h18+m3MvzdviSDfPle/TfH0//cXcB33AKlNR/Rha0yQsKefDZKRTkIZos97HEGq2JMV1RT5ybMoQ3WsQ==" crossorigin="anonymous"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div id="app"></div> </body> </html>
.wj-calendar { display: inline-block; } .wj-calendar td { padding: 4px 6px 3px 6px; } .wj-calendar .wj-header { color: white; background: #808080; } .wj-calendar .date-holiday:not(.wj-state-selected) { font-weight: bold; color: #008f22; background: #f0fff0; outline: 2pt solid #008f22; } .wj-calendar .date-weekend:not(.wj-state-selected) { background-color: #d8ffa6; }
function getHolidays() { return { '1/1': '元旦', '1/2/1': '成人の日', '2/11': '建国記念の日', '2/23': '天皇誕生日', '3/20': '春分の日', '4/29': '昭和の日', '5/3': '憲法記念日', '5/4': 'みどりの日', '5/5': 'こどもの日', '7/3/1': '海の日', '8/11': '山の日', '9/23': '秋分の日', '9/3/1': '敬老の日', '10/2/1': '体育の日', '11/3': '文化の日', '11/23': '勤労感謝の日' }; } export const holidays = getHolidays();
(function (global) { System.config({ transpiler: 'plugin-babel', babelOptions: { es2015: true, react: true }, meta: { '*.css': { loader: 'css' } }, paths: { // paths serve as alias 'npm:': 'node_modules/' }, // map tells the System loader where to look for things map: { 'jszip': 'npm:jszip/dist/jszip.js', '@mescius/wijmo': 'npm:@mescius/wijmo/index.js', '@mescius/wijmo.input': 'npm:@mescius/wijmo.input/index.js', '@mescius/wijmo.styles': 'npm:@mescius/wijmo.styles', '@mescius/wijmo.cultures': 'npm:@mescius/wijmo.cultures', '@mescius/wijmo.chart': 'npm:@mescius/wijmo.chart/index.js', '@mescius/wijmo.chart.analytics': 'npm:@mescius/wijmo.chart.analytics/index.js', '@mescius/wijmo.chart.animation': 'npm:@mescius/wijmo.chart.animation/index.js', '@mescius/wijmo.chart.annotation': 'npm:@mescius/wijmo.chart.annotation/index.js', '@mescius/wijmo.chart.finance': 'npm:@mescius/wijmo.chart.finance/index.js', '@mescius/wijmo.chart.finance.analytics': 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'systemjs-babel-build':'npm:systemjs-plugin-babel/systemjs-babel-browser.js', "react-use-event-hook": "npm:react-use-event-hook/dist/esm/useEvent.js", }, // packages tells the System loader how to load when no filename and/or no extension packages: { src: { defaultExtension: 'jsx' }, "node_modules": { defaultExtension: 'js' }, } }); })(this);