api-date.js

"use strict";

Plugins.date = function(params, language) {
	return {
		create: function(data, callback, allData) {
			let div = $("<div>");
			let input = $("<input>");
			if (data !== undefined) {
				input.val(data.value);
			}
			let divs = $("<div>").addClass("buttons");
			let validateButton = $("<div>").addClass("button");
			i18n(validateButton, language.validate);
			let setButton = $("<div>").addClass("button");
			i18n(setButton, language.set);
			let explanation = $("<div>").addClass("explanation");
			divs.append(validateButton);
			divs.append(setButton);
			input.on("input", function() {
				validateButton.show();
				setButton.hide();
				explanation.text("").removeClass("invalid").removeClass("check");
			});
			validateButton.show();
			setButton.hide();
			let date = null;
			validateButton.click(function() {
				let v = input.val().trim();
				if (v === "") {
					return;
				}

				let year;
				let month;
				let day;

				explanation.text("").removeClass("invalid").removeClass("check");

				let s = [];
				for (let ss of v.split(/[^0-9]/g)) {
					ss = ss.trim();
					if (ss === "") {
						continue;
					}
					s.push(ss);
				}
				console.log(s);
				if (s.length === 2) {
					s.push(new Date().getFullYear());
				}
				if (s.length !== 3) {
					i18n(explanation.addClass("invalid"), language.invaliddate);
					return;
				} else {
					try {
						let a = parseInt(s[0]);
						let b = parseInt(s[1]);
						let c = parseInt(s[2]);
						if (a > 31) {
							year = a;
							month = b;
							day = c;
							if (month > 12) {
								month = c;
								day = b;
							}
						} else if (c > 31) {
							year = c;
							month = b;
							day = a;
							if (month > 12) {
								month = a;
								day = b;
							}
						} else {
							throw "invalid";
						}
						if (year < 1900) {
							year += 1900;
						}
					} catch (e) {
						i18n(explanation.addClass("invalid"), language.invaliddate);
						return;
					}
				}

				date = year + "/" + ((month < 10) ? "0" : "") + month + "/" + ((day < 10) ? "0" : "") + day;
				explanation.addClass("valid").text(new Date(date).toDateString());

				validateButton.hide();
				setButton.show();
			});
			setButton.click(function() {
				callback({
					value: date
				});
			});

			div.append(input);
			div.append(explanation);
			div.append(divs);
			return div;
		},
		destroy: function() {
		}
	};
};