utils.js

GitHub userscript utilities

当前为 2020-03-28 提交的版本,查看 最新版本

此脚本不应直接安装。它是供其他脚本使用的外部库,要使用该库请加入元指令 // @require https://update.gf.qytechs.cn/scripts/398877/785415/utilsjs.js

您需要先安装一个扩展,例如 篡改猴Greasemonkey暴力猴,之后才能安装此脚本。

You will need to install an extension such as Tampermonkey to install this script.

您需要先安装一个扩展,例如 篡改猴暴力猴,之后才能安装此脚本。

您需要先安装一个扩展,例如 篡改猴Userscripts ,之后才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey,才能安装此脚本。

您需要先安装用户脚本管理器扩展后才能安装此脚本。

(我已经安装了用户脚本管理器,让我安装!)

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

(我已经安装了用户样式管理器,让我安装!)

/* GitHub userscript utilities v0.1.0-alpha
 * Copyright © 2020 Rob Garrison
 * License: MIT
 */
/* exported
 * $ $$ addClass removeClass on off make
 * debounce
 * addMenu
 */
"use strict";

/* DOM utilities */
const $ = (selector, el) => (el || document).querySelector(selector);
const $$ = (selector, el) => [...(el || document).querySelectorAll(selector)];

/**
 * Add class name(s) to one or more elements
 * @param {HTMLElements[]|Nodelist|HTMLElement|Node} elements 
 * @param {string|array} classes - class name(s) to add; string can contain a
 *  comma separated list
 */
const addClass = (elements, classes) => {
	const classNames = _getClasses(classes);
	const els = _createElementArray(elements);
	let indx = els.length;
	while (indx--) {
		els[indx] && els[indx].classList.add(...classNames);
	}
};

/**
 * Remove class name(s) from one or more elements
 * @param {HTMLElements[]|NodeList|HTMLElement|Node} elements
 * @param {string|array} classes - class name(s) to add; string can contain a
 *  comma separated list
 */
const removeClass = (elements, classes) => {
	const classNames = _getClasses(classes);
	const els =_createElementArray(elements);
	let indx = els.length;
	while (indx--) {
		els[indx] && els[indx].classList.remove(...classNames);
	}
};

const on = (els, name = "", callback, options) => {
	els = Array.isArray(els) ? els : [els];
	let events = name.split(/\s+/);
	els.forEach(el => {
		events.forEach(ev => {
			el.addEventListener(ev, callback, options);
		});
	});
};

const _createElementArray = elements => {
	if (Array.isArray(elements)) {
		return elements;
	}
	return elements instanceof NodeList ? [...elements] : [elements];
}

const _getClasses = classes => {
	if (Array.isArray(classes)) {
		return classes;
	}
	const names = classes.toString();
	return names.contains(",") ? names.split(/\s*,\s*/) : [names];
}

/**
 * Helpers
 */
const debounce = (fxn, time = 500) => {
	let timer;
	return function() {
		clearTimeout(timer);
		timer = setTimeout(() => {
			fxn.apply(this, arguments);
		}, time);
	}
}

/**
 * @typedef Utils~makeOptions
 * @type {object}
 * @property {string} el - HTML element tag, e.g. "div" (default)
 * @property {string} appendTo - selector of target element to append menu
 * @property {string} className - CSS classes to add to the element
 * @property {object} attr - HTML attributes (as key/value paries) to set
 * @property {object} text - string added to el using textContent
 * @property {string} html - html to be added using `innerHTML` (overrides `text`)
 * @property {array} children - array of elements to append to the created element
 */
/**
 * Create a DOM element
 * @param {Utils~makeOptions}
 * @returns {HTMLElement} (may be already inserted in the DOM)
 * @example
	make({ el: 'ul', className: 'wrapper', appendTo: 'body' }, [
		make({ el: 'li', text: 'item #1' }),
		make({ el: 'li', text: 'item #2' })
	]);
 */
const make = (obj, children) => {
	const el = document.createElement(obj.el || "div");
	const xref = {
		className: "className",
		id: "id",
		text: "textContent",
		html: "innerHTML", // overrides text setting
	};
	Object.keys(xref).forEach(key => {
		if (obj[key]) {
			el[xref[key]] = obj[key];
		}
	})
	if (obj.attrs) {
		for (let key in obj.attrs) {
			if (obj.attrs.hasOwnProperty(key)) {
				el.setAttribute(key, obj.attrs[key]);
			}
		}
	}
	if (Array.isArray(children) && children.length) {
		children.forEach(child => el.appendChild(child));
	}
	if (obj.appendTo) {
		$(obj.appendTo).appendChild(el);
	}
	return el;
}

/* Add GitHub menu
 * Example set up
ghMenu.open(
	"Popup Title",
	[{
		name: "Title",
		type: "text",
		get: () => GM_getValue("title"),
		set: value => GM_setValue("title", value)
	}, {
		name: "Border width (px)",
		type: "number",
		get: () => GM_getValue("border-width"),
		set: value => GM_setValue("border-width", value)
	}, {
		name: "Is enabled?",
		type: "checkbox",
		get: () => GM_getValue("enabled"),
		set: value => GM_setValue("enabled", value)
	}, {
		name: "Background Color",
		type: "color",
		get: () => GM_getValue("bkg-color"),
		set: value => GM_setValue("bkg-color", value)
	}, {
		name: "Widget enabled",
		type: "checkbox",
		get: () => GM_getValue("widget-is-enabled"),
		set: value => GM_setValue("widget-is-enabled", value)
	}, {
		name: "Image choice",
		type: "select",
		get: () => GM_getValue("img-choice"),
		set: value => GM_setValue("img-choice", value),
		options: [
			{ label: "Car", value: "/images/car.jpg" },
			{ label: "Jet", value: "/images/jet.jpg" },
			{ label: "Cat", value: "/images/cat.jpg" }
		]
	}]
);
*/
const ghMenu = {
	init: () => {
		if (!$("#ghmenu-style")) {
			make({
				el: "style",
				id: "ghmenu-style",
				textContent: `
					#ghmenu, #ghmenu summary { cursor: default; }
					#ghmenu summary:before { cursor: pointer; }
					#ghmenu-inner input[type="color"] { border: 0; padding: 0 }
					#ghmenu-inner ::-webkit-color-swatch-wrapper { border: 0; padding: 0; }
					#ghmenu-inner ::-moz-color-swatch-wrapper { border: 0; padding: 0; }
					}
				`,
				appendTo: "body"
			});
		}
	},

	open: (title, options) => {
		if (!$("#ghmenu")) {
			ghMenu._createMenu(title);
			ghMenu._options = options;
		}
		ghMenu._title = title;
		ghMenu._addContent(options);
	},
	close: event => {
		if (event) {
			event.preventDefault();
		}
		const menu = $("#ghmenu");
		if (menu) {
			menu.remove();
		}
	},
	append: options => {
		const menu = $("#ghmenu");
		if (menu) {
			ghMenu._appendContent(options);
		} else {
			ghMenu.open("", options);
		}
	},
	refresh: () => {
		ghMenu._addContent(ghMenu._options);
	},

	_types: {
		_input: (type, eventType, opts) => {
			const elm = make({
				el: "input",
				id: `${opts.id}-input`,
				className: `ghmenu-${type} ${type === "checkbox"
					? "m-2"
					: "form-control input-block width-full"
				}`,
				attrs: {
					type,
					value: opts.get()
				},
			});
			const handler = e => opts.set(type === "checkbox"
				? e.target.checked
				: e.target.value
			);
			on(elm, eventType, handler);
			return elm;
		},
		text: opts => ghMenu._types._input("text", "input", opts),
		number: opts => ghMenu._types._input("number", "input", opts),
		checkbox: opts => ghMenu._types._input("checkbox", "change", opts),
		color: opts => ghMenu._types._input("color", "change", opts),
		radio: opts => {},
		select: opts => {
			const elm = make({
				el: "select",
				className: "width-full ghmenu-select",
				attrs: {
					value: opts.get()
				}
			}, opts.options.map(obj => (
				make({
					el: "option",
					text: obj.label,
					attrs: {
						value: obj.value
					}
				})
			)));
			on(elm, "change", e => opts.set(e.target.value));
			return elm;
		},

		/* TO DO
		* - add multiple?
		*   colors: ['#000', '#fff']
		*   guideline: { width: '.2', color: '#a00', chars: 80 }
		* - link to more details/docs?
		*/
		group: opts => {
			const group = opts.group;
			if (Array.isArray(group) && group.length) {
				const fragment = document.createDocumentFragment();
				fragment.appendChild(make({ el: "strong", text: opts.name }));
				group.forEach(entry => {
					const row = make({
						className: "Box-row d-flex flex-row pr-0"
					}, [
						ghMenu._createLabel(entry.id, entry.name),
						make({
							id,
							className: `ml-2 no-wrap${
								// align checkbox to right edge
								opt.type === "checkbox" ? " d-flex flex-justify-end" : ""
							}`,
						})
					])
				})
			}
		},
	},
	_options: [],
	_createMenu: () => {
		// create menu
		make({
			el: "details",
			id: "ghmenu",
			className: "details-reset details-overlay details-overlay-dark lh-default text-gray-dark",
			attrs: {
				open: true
			},
			html: `
				<summary role="button" aria-label="Close dialog" />
				<details-dialog
					id="ghmenu-dialog"
					class="Box Box--overlay d-flex flex-column anim-fade-in fast container-xl"
					role="dialog"
					aria-modal="true"
					tab-index="-1"
				>
					<div class="readability-extra d-flex flex-auto flex-column overflow-hidden">
						<div class="Box-header">
							<h2 id="ghmenu-title" class="Box-title"></h2>
						</div>
						<div class="Box-body p-0 overflow-scroll">
							<div class="container-lg p-responsive advanced-search-form">
								<fieldset id="ghmenu-inner" class="pb-2 mb-2 min-width-0" />
							</div>
						</div>
					</div>
					<button id="ghmenu-close-menu" class="Box-btn-octicon m-0 btn-octicon position-absolute right-0 top-0" type="button" aria-label="Close dialog" data-close-dialog="">
						<svg class="octicon octicon-x" viewBox="0 0 12 16" version="1.1" width="12" height="16" aria-hidden="true">
							<path fill-rule="evenodd" d="M7.48 8l3.75 3.75-1.48 1.48L6 9.48l-3.75 3.75-1.48-1.48L4.52 8 .77 4.25l1.48-1.48L6 6.52l3.75-3.75 1.48 1.48L7.48 8z" />
						</svg>
					</button>
				</details-dialog>`,
			appendTo: "body"
		});
		on($("#ghmenu-close-menu"), "click", e => ghMenu.close(e), { once: true });
		on($("#ghmenu summary"), "click", e => {
			e.preventDefault();
			e.stopPropagation();
			const target = e.target;
			if (target && !target.closest("#ghmenu-dialog")) {
				ghMenu.close(e);
			}
		});
	},
	_addContent: options => {
		const menu = $("#ghmenu-inner");
		if (menu) {
			menu.innerHTML = "";
			ghMenu._appendContent(options);
		}
	},
	/* <dt><label for="{ID}-input">{NAME}</label></dt> */
	_createLabel: (id, text) => make({
		el: "dt",
	}, [
		make({
			el: "label",
			className: "flex-auto",
			text,
			attrs: {
				for: `${id}-input`
			}
		})
	]),
	_appendContent: options => {
		const container = $("#ghmenu-inner");
		if (container) {
			// update title, if needed
			$("#ghmenu-title").textContent = ghMenu._title;

			const fragment = document.createDocumentFragment();
			options.forEach((opt, indx) => {
				const id = `ghmenu-${opt.name.replace(/\s/g, "")}-${indx}`;
				const output = opt.type === "group"
					? ghMenu._types.group({ ...opt, id })
					: make({
						el: "dl",
						className: "form-group flattened d-flex d-md-block flex-column border-bottom my-0 py-2",
					}, [
						ghMenu._createLabel(id, opt.name),
						make({
							el: "dd",
							id,
							className: opt.type === "checkbox"
								? "d-flex flex-justify-end"
								: "",
						}, [
							ghMenu._types[opt.type || "text"]({ ...opt, id })
						])
					]);
				fragment.appendChild(output);
			});
			container.appendChild(fragment);
		}
	}
};