translate-date-in-gitlab.js

// ==UserScript==
// @name        Translate DateTime in GitLab
// @namespace   http://www.yuuan.net/item/1054
// @description 英語で書かれた日付を数字に変える
// @require     http://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js
// @include     http://gitlab.com/*
// @version     0.1
// @grant       none
// ==/UserScript==
(function($) {
	var selectors = [{
		selector: '.commits-row-date > span',
		target: 'html',
	}, {
		selector: 'time',
		target: [ 'title', 'data-original-title' ],
	}];

	var months = {
		Jan: 1, Feb: 2, Mar: 3, Apr: 4, May: 5, Jun: 6, Jul: 7, Aug: 8, Sep: 9, Oct: 10, Nov: 11, Dec: 12
	};

	var format = function(year, month, day, origin) {
		if (month in months) {
			return [
				year,
				('0' + months[month]).slice(-2),
				('0' + day).slice(-2),
			].join('/');
		}
		else return origin;
	};

	var patterns = [{
		regex: /(\d{1,2}) ([A-Z][a-z]{2}), (\d{4})/,
		replacer: function(match, day, month, year) {
			return format(year, month, day, match);
		},
	}, {
		regex: /([A-Z][a-z]{2}) (\d{1,2}), (\d{4})/,
		replacer: function(match, month, day, year) {
			return format(year, month, day, match);
		},
	}];

	var translate = function(date) {
		patterns.forEach(function(pattern) {
			if (pattern.regex.test(date)) {
				date = date.replace(pattern.regex, pattern.replacer);
				return false;
			}
		});
		return date;
	};

	var DateTag = function(tag, target) {
		this.tag = tag;
		this.target = target;

		DateTag.prototype.get = function() {
			if (target == 'html') return this.tag.html();
			else return this.tag.attr(this.target);
		};

		DateTag.prototype.set = function(translated) {
			if (target == 'html') this.tag.html(translated);
			else this.tag.attr(this.target, translated);
		};

		DateTag.prototype.translate = function() {
			this.set(translate(this.get()));
		};
	};

	var replace = function() {
		selectors.forEach(function(selector) {
			var tags = $(selector.selector);
			if (tags) {
				tags.each(function() {
					var tag = $(this);
					var targets = $.isArray(selector.target) ? selector.target : [ selector.target ];
					targets.forEach(function(target) {
						var dateTag = new DateTag(tag, target);
						dateTag.translate();
					});
				});
			}
		});
	};

	$(document).ready(replace);
	$(window).load(replace);

})(jQuery.noConflict(true));