Dieses Skript sollte nicht direkt installiert werden. Es handelt sich hier um eine Bibliothek für andere Skripte, welche über folgenden Befehl in den Metadaten eines Skriptes eingebunden wird // @require https://update.greasyfork.org/scripts/465772/1247918/DOMUtils.js
/**
* 自己常用的元素节点工具类
* @copyright GPL-3.0-only
* @author WhiteSevs
* @version 1.3
* @namespace
**/
(function (global, factory) {
typeof exports === "object" && typeof module !== "undefined"
? (module.exports = factory())
: typeof define === "function" && define.amd
? define(factory)
: ((global =
typeof globalThis !== "undefined" ? globalThis : global || self),
(global.DOMUtils = factory()));
})(this, function () {
"use strict";
const DOMUtils = {};
/**
* 获取或设置元素的属性值
* @param {HTMLElement|string} element 目标元素
* @param {string} attrName - 属性名
* @param {string} [attrValue] - 属性值（可选）
* @returns {string|undefined} - 如果传入了attrValue，则返回undefined；否则返回属性值
* */
DOMUtils.attr = function (element, attrName, attrValue) {
if (typeof element === "string") {
element = document.querySelector(element);
}
if (attrValue === undefined) {
return element.getAttribute(attrName);
} else {
element.setAttribute(attrName, attrValue);
}
};
/**
* 创建元素
* @param {string} tagName 元素类型
* @param {object} property 元素属性
* @returns {Element}
*/
DOMUtils.createElement = function (tagName, property) {
let tempElement = document.createElement(tagName);
if (typeof property === "string") {
tempElement.innerHTML = property;
return tempElement;
}
if (property == null) {
return tempElement;
}
Object.keys(property).forEach((key) => {
if (key in tempElement && typeof property[key] !== "object") {
tempElement[key] = property[key];
} else {
tempElement.setAttribute(key, property[key]);
}
});
return tempElement;
};
/**
* 获取或设置元素的样式属性值
* @param {Element|string} element 目标元素
* @param {string|object} property - 样式属性名或包含多个属性名和属性值的对象
* @param {string} [value] - 样式属性值（可选）
* @returns {string|undefined} - 如果传入了value，则返回undefined；否则返回样式属性值
* */
DOMUtils.css = function (element, property, value) {
/**
* 把纯数字没有px的加上
*/
function handlePixe(propertyName, propertyValue) {
let allowAddPixe = ["width", "height", "top", "left", "right", "bottom"];
if (typeof propertyValue === "number") {
propertyValue = propertyValue.toString();
}
if (
typeof propertyValue === "string" &&
allowAddPixe.includes(propertyName) &&
propertyValue.match(/[0-9]$/gi)
) {
propertyValue = propertyValue + "px";
}
return propertyValue;
}
if (typeof element === "string") {
element = document.querySelector(element);
}
if (typeof property === "string") {
if (value === undefined) {
return element.style[property];
} else {
if (value === "string" && value.includes("!important")) {
element.style.setProperty(property, value, "important");
} else {
value = handlePixe(property, value);
element.style.setProperty(property, value);
}
}
} else if (typeof property === "object") {
for (let prop in property) {
if (
typeof property[prop] === "string" &&
property[prop].includes("!important")
) {
element.style.setProperty(prop, property[prop], "important");
} else {
property[prop] = handlePixe(prop, property[prop]);
element.style.setProperty(prop, property[prop]);
}
}
}
};
/**
* 获取或设置元素的文本内容
* @param {Element|element} element 目标元素
* @param {string} [text] - 文本内容（可选）
* @returns {string|undefined} - 如果传入了text，则返回undefined；否则返回文本内容
* */
DOMUtils.text = function (element, text) {
if (typeof element === "string") {
element = document.querySelector(element);
}
if (text === undefined) {
return element.textContent;
} else {
if ("textContent" in element) {
element.textContent = text;
}
}
};
/**
* 获取或设置元素的HTML内容
* @param {Element|string} element 目标元素
* @param {string} [html] - HTML内容（可选）
* @returns {string|undefined} - 如果传入了html，则返回undefined；否则返回HTML内容
* */
DOMUtils.html = function (element, html) {
if (typeof element === "string") {
element = document.querySelector(element);
}
if (html === undefined) {
return element.innerHTML;
} else {
if ("innerHTML" in element) {
element.innerHTML = html;
}
}
};
/**
* 绑定或触发元素的click事件
* @param {Element|string} element 目标元素
* @param {function} [handler] - 事件处理函数（可选）
* @returns {DOMUtils} - 原型链
* @function
* */
DOMUtils.click = function (element, handler) {
if (typeof element === "string") {
element = document.querySelector(element);
}
if (handler === undefined) {
DOMUtils.trigger(element, "click");
} else {
DOMUtils.on(element, "click", null, handler);
}
return this;
};
/**
* 绑定或触发元素的blur事件
* @param {Element|string} element 目标元素
* @param {function} [handler] - 事件处理函数（可选）
* @returns {DOMUtils} - 原型链
* */
DOMUtils.blur = function (element, handler) {
if (typeof element === "string") {
element = document.querySelector(element);
}
if (handler === undefined) {
DOMUtils.trigger(element, "blur");
} else {
DOMUtils.on(element, "blur", null, handler);
}
return this;
};
/**
* 绑定或触发元素的focus事件
* @param {Element|string} element 目标元素
* @param {function} [handler] - 事件处理函数（可选）
* @returns {DOMUtils} - 原型链
* */
DOMUtils.focus = function (element, handler) {
if (typeof element === "string") {
element = document.querySelector(element);
}
if (handler === undefined) {
DOMUtils.trigger(element, "focus");
} else {
DOMUtils.on(element, "focus", null, handler);
}
return this;
};
/**
* 获取或设置元素的value属性值
* @param {Element|string} element 目标元素
* @param {string} [value] - value属性值（可选）
* @returns {string|undefined} - 如果传入了value，则返回undefined；否则返回value属性值
* */
DOMUtils.val = function (element, value) {
if (typeof element === "string") {
element = document.querySelector(element);
}
if (value === undefined) {
if (
element.localName === "input" &&
(element.type === "checkbox" || element.type === "radio")
) {
return element.checked;
} else {
return element.value;
}
} else {
if (
element.localName === "input" &&
(element.type === "checkbox" || element.type === "radio")
) {
element.checked = !!value;
} else {
element.value = value;
}
}
};
/**
* 获取或设置元素的属性值
* @param {Element|string} element 目标元素
* @param {string} propName - 属性名
* @param {string} [propValue] - 属性值（可选）
* @returns {string|undefined} - 如果传入了propValue，则返回undefined；否则返回属性值
* */
DOMUtils.prop = function (element, propName, propValue) {
if (typeof element === "string") {
element = document.querySelector(element);
}
if (propValue === undefined) {
return element[propName];
} else {
element[propName] = propValue;
}
};
/**
* 移除元素的属性
* @param {Element|string} element 目标元素
* @param {string} attrName - 属性名
* @returns {DOMUtils} - 原型链
* */
DOMUtils.removeAttr = function (element, attrName) {
if (typeof element === "string") {
element = document.querySelector(element);
}
element.removeAttribute(attrName);
return this;
};
/**
* 移除元素class名
* @param {Element|string} element 目标元素
* @param {string} className class名
* @returns {DOMUtils} 原型链
*/
DOMUtils.removeClass = function (element, className) {
if (typeof element === "string") {
element = document.querySelector(element);
}
element.classList.remove(className);
return this;
};
/**
* 移除元素的属性
* @param {Element|string} element 目标元素
* @param {string} propName - 属性名
* @returns {DOMUtils} - 原型链
* */
DOMUtils.removeProp = function (element, propName) {
if (typeof element === "string") {
element = document.querySelector(element);
}
delete element[propName];
return this;
};
/**
* 将一个元素替换为另一个元素
* @param {Element|string} element 目标元素
* @param {Element|string} newElement 新元素
* @returns {DOMUtils} 原型链
*/
DOMUtils.replaceWith = function (element, newElement) {
if (typeof element === "string") {
element = document.querySelector(element);
}
if (typeof newElement === "string") {
newElement = DOMUtils.parseHTML(newElement, false, false);
}
if (element instanceof NodeList || element instanceof Array) {
element.forEach((item) => {
DOMUtils.replaceWith(item, newElement);
});
} else {
element.parentElement.replaceChild(newElement, element);
}
return this;
};
/**
* 给元素添加class
* @param {Element|string} element 目标元素
* @param {string} className - class名
* @returns {DOMUtils} - 原型链
* */
DOMUtils.addClass = function (element, className) {
if (typeof element === "string") {
element = document.querySelector(element);
}
element.classList.add(className);
return this;
};
/**
* 函数在元素内部末尾添加子元素或HTML字符串
* @param {Element|string} element 目标元素
* @param {object|string} content - 子元素或HTML字符串
* @returns {DOMUtils} - 原型链
* */
DOMUtils.append = function (element, content) {
if (typeof element === "string") {
element = document.querySelector(element);
}
if (element == null) {
return this;
}
if (typeof content === "string") {
element.insertAdjacentHTML("beforeend", content);
} else {
element.appendChild(content);
}
return this;
};
/**
* 函数 在元素内部开头添加子元素或HTML字符串
* @param {Element|string} element 目标元素
* @param {object|string} content - 子元素或HTML字符串
* @returns {DOMUtils} - 原型链
* */
DOMUtils.prepend = function (element, content) {
if (typeof element === "string") {
element = document.querySelector(element);
}
if (element == null) {
return this;
}
if (typeof content === "string") {
element.insertAdjacentHTML("afterbegin", content);
} else {
element.insertBefore(content, element.firstChild);
}
return this;
};
/**
* 在元素后面添加兄弟元素或HTML字符串
* @param {Element|string} element 目标元素
* @param {object|string} content - 兄弟元素或HTML字符串
* @returns {DOMUtils} - 原型链
* */
DOMUtils.after = function (element, content) {
if (typeof element === "string") {
element = document.querySelector(element);
}
if (element == null) {
return this;
}
if (typeof content === "string") {
element.insertAdjacentHTML("afterend", content);
} else {
element.parentElement.insertBefore(content, element.nextSibling);
}
return this;
};
/**
* 在元素前面添加兄弟元素或HTML字符串
* @param {Element|string} element 目标元素
* @param {object|string} content - 兄弟元素或HTML字符串
* @returns {DOMUtils} - 原型链
* */
DOMUtils.before = function (element, content) {
if (typeof element === "string") {
element = document.querySelector(element);
}
if (element == null) {
return this;
}
if (typeof content === "string") {
element.insertAdjacentHTML("beforebegin", content);
} else {
element.parentElement.insertBefore(content, element);
}
return this;
};
/**
* 移除元素
* @param {Element|string|NodeList} element 目标元素
* @returns {DOMUtils} - 原型链
* */
DOMUtils.remove = function (element) {
if (typeof element === "string") {
element = document.querySelectorAll(element);
}
if (element instanceof NodeList || element instanceof Array) {
element.forEach(function (item) {
DOMUtils.remove(item);
});
} else {
element.remove();
}
return this;
};
/**
* 移除元素的所有子元素
* @param {Element|string} element 目标元素
* @returns {DOMUtils} - 原型链
* */
DOMUtils.empty = function (element) {
if (typeof element === "string") {
element = document.querySelector(element);
}
while (element.firstChild) {
element.removeChild(element.firstChild);
}
return this;
};
/**
* 绑定事件
* @param {Element|string} element 需要绑定的元素
* @param {String|Array} eventType 需要监听的事件
* @param {HTMLElement?} selector 子元素选择器
* @param {Function} callback 事件触发的回调函数
* @param {Boolean} capture 表示事件是否在捕获阶段触发。默认为false，即在冒泡阶段触发
* @param {Boolean} once 表示事件是否只触发一次。默认为false
* @param {Boolean} passive 表示事件监听器是否不会调用preventDefault()。默认为false
* @returns {DOMUtils} - 原型链
* @function
*/
DOMUtils.on = function (
element,
eventType,
selector,
callback,
capture = false,
once = false,
passive = false
) {
if (typeof element === "string") {
element = document.querySelector(element);
}
if (element == null) {
return this;
}
let eventTypeList = [];
if (Array.isArray(eventType)) {
eventTypeList = eventType;
} else if (typeof eventType === "string") {
eventTypeList = eventType.split(" ");
}
if (typeof selector === "function") {
/* 这是为没有selector的情况 */
callback = selector;
selector = null;
}
eventTypeList.forEach((_eventType_) => {
if (selector) {
element.addEventListener(
_eventType_,
function (event) {
let target = event.target;
if (target.matches(selector)) {
callback.call(target, event);
}
},
capture,
once,
passive
);
} else {
element.addEventListener(
_eventType_,
function (event) {
callback.call(event.target, event);
},
capture,
once,
passive
);
}
});
if (callback && callback.delegate) {
element.setAttribute("data-delegate", selector);
}
let events = element.events || {};
events[eventType] = events[eventType] || [];
events[eventType].push({
selector: selector,
callback: callback,
});
element.events = events;
return this;
};
/**
* 取消绑定事件
* @param {Element|string} element 需要取消绑定的元素
* @param {String|Array} eventType 需要取消监听的事件
* @param {HTMLElement} selector 子元素选择器
* @param {Function} callback 事件触发的回调函数
* @param {Boolean} useCapture 表示事件是否在捕获阶段处理，它是一个可选参数，默认为false，表示在冒泡阶段处理事件。
* 如果在添加事件监听器时指定了useCapture为true，则在移除事件监听器时也必须指定为true
* @returns {DOMUtils} - 原型链
*/
DOMUtils.off = function (
element,
eventType,
selector,
callback,
useCapture = false
) {
if (typeof element === "string") {
element = document.querySelector(element);
}
let events = element.events || {};
let eventTypeList = [];
if (!eventType) {
for (let type in events) {
eventTypeList = [...eventTypeList, type];
}
} else if (Array.isArray(eventType)) {
eventTypeList = eventType;
} else if (typeof eventType === "string") {
eventTypeList = eventType.split(" ");
}
eventTypeList.forEach((_eventType_) => {
let handlers = events[eventType] || [];
for (let i = 0; i < handlers.length; i++) {
if (
(!selector || handlers[i].selector === selector) &&
(!callback || handlers[i].callback === callback)
) {
element.removeEventListener(
_eventType_,
handlers[i].callback,
useCapture
);
handlers.splice(i--, 1);
}
}
if (handlers.length === 0) {
delete events[eventType];
}
});
element.events = events;
return this;
};
/**
* 主动触发事件
* @param {Element|string} element 需要触发的元素
* @param {String|Array} eventType 需要触发的事件
* @returns {DOMUtils} - 原型链
*/
DOMUtils.trigger = function (element, eventType) {
if (typeof element === "string") {
element = document.querySelector(element);
}
let events = element.events || {};
let eventTypeList = [];
if (!eventType) {
for (let type in events) {
eventTypeList = [...eventTypeList, type];
}
} else if (Array.isArray(eventType)) {
eventTypeList = eventType;
} else if (typeof eventType === "string") {
eventTypeList = eventType.split(" ");
}
eventTypeList.forEach((_eventType_) => {
let event = new Event(_eventType_);
element.dispatchEvent(event);
});
return this;
};
/**
* 设置或返回被选元素相对于文档的偏移坐标
* @param {Element|string} element
* @returns {Object}
*/
DOMUtils.offset = function (element) {
if (typeof element === "string") {
element = document.querySelector(element);
}
let rect = element.getBoundingClientRect();
let win = window;
return {
top: rect.top + win.scrollY,
left: rect.left + win.scrollX,
};
};
/**
* 获取元素的宽度
* @param {Element|string} element - 要获取宽度的元素
* @returns {Number} - 元素的宽度，单位为像素
*/
DOMUtils.width = function (element) {
if (element == window) {
return window.document.documentElement.clientWidth;
}
if (typeof element === "string") {
element = document.querySelector(element);
}
if (element.nodeType === 9) {
/* 文档节点 */
return Math.max(
element.body.scrollWidth,
element.documentElement.scrollWidth,
element.body.offsetWidth,
element.documentElement.offsetWidth,
element.documentElement.clientWidth
);
}
let oldCSS_display = element.style.display;
let oldCSS_visibility = element.style.visibility;
let oldCSS_position = element.style.position;
element.style.display = "block";
element.style.visibility = "hidden";
element.style.position = "absolute";
let view = element.ownerDocument.defaultView;
if (!view || !view.opener) {
view = window;
}
let styles = view.getComputedStyle(element);
let elementWidth =
element.clientWidth -
parseFloat(styles.paddingLeft) -
parseFloat(styles.paddingRight);
element.style.display = oldCSS_display;
element.style.visibility = oldCSS_visibility;
element.style.position = oldCSS_position;
return elementWidth;
};
/**
* 获取元素的高度
* @param {Element|string} element - 要获取高度的元素
* @returns {Number} - 元素的高度，单位为像素
*/
DOMUtils.height = function (element) {
if (element == window) {
return window.document.documentElement.clientHeight;
}
if (typeof element === "string") {
element = document.querySelector(element);
}
if (element.nodeType === 9) {
/* 文档节点 */
return Math.max(
element.body.scrollHeight,
element.documentElement.scrollHeight,
element.body.offsetHeight,
element.documentElement.offsetHeight,
element.documentElement.clientHeight
);
}
let oldCSS_display = element.style.display;
let oldCSS_visibility = element.style.visibility;
let oldCSS_position = element.style.position;
element.style.display = "block";
element.style.visibility = "hidden";
element.style.position = "absolute";
let view = element.ownerDocument.defaultView;
if (!view || !view.opener) {
view = window;
}
let styles = view.getComputedStyle(element);
let elementHeight =
element.clientHeight -
parseFloat(styles.paddingTop) -
parseFloat(styles.paddingBottom);
element.style.display = oldCSS_display;
element.style.visibility = oldCSS_visibility;
element.style.position = oldCSS_position;
return elementHeight;
};
/**
* 获取元素的外部宽度（包括边框和外边距）
* @param {Element|string} element - 要获取外部宽度的元素
* @returns {Number} - 元素的外部宽度，单位为像素
*/
DOMUtils.outerWidth = function (element) {
if (element == window) {
return window.innerWidth;
}
if (typeof element === "string") {
element = document.querySelector(element);
}
let style = getComputedStyle(element, null);
return (
element.offsetWidth +
parseFloat(style.marginLeft) +
parseFloat(style.marginRight)
);
};
/**
* 获取元素的外部高度（包括边框和外边距）
* @param {Element|string} element - 要获取外部高度的元素
* @returns {Number} - 元素的外部高度，单位为像素
*/
DOMUtils.outerHeight = function (element) {
if (element == window) {
return window.innerHeight;
}
if (typeof element === "string") {
element = document.querySelector(element);
}
let style = getComputedStyle(element, null);
return (
element.offsetHeight +
parseFloat(style.marginTop) +
parseFloat(style.marginBottom)
);
};
/**
* 等待文档加载完成后执行指定的函数
* @param {Function} callback - 需要执行的函数
* @returns {DOMUtils} - 原型链
*/
DOMUtils.ready = function (callback) {
function completed() {
document.removeEventListener("DOMContentLoaded", completed);
window.removeEventListener("load", completed);
callback();
}
if (
document.readyState === "complete" ||
(document.readyState !== "loading" && !document.documentElement.doScroll)
) {
window.setTimeout(callback);
} else {
/* 监听DOMContentLoaded事件 */
document.addEventListener("DOMContentLoaded", completed);
/* 监听load事件 */
window.addEventListener("load", completed);
}
return this;
};
/**
* 在一定时间内改变元素的样式属性，实现动画效果
* @param {Element|string} element - 需要进行动画的元素
* @param {Object} styles - 动画结束时元素的样式属性
* @param {Number} [duration=1000] - 动画持续时间，单位为毫秒
* @param {Function} [callback=null] - 动画结束后执行的函数
* @returns {DOMUtils} - 原型链
*/
DOMUtils.animate = function (
element,
styles,
duration = 1000,
callback = null
) {
if (typeof element === "string") {
element = document.querySelector(element);
}
if (typeof duration !== "number" || duration <= 0) {
throw new TypeError("duration must be a positive number");
}
if (typeof callback !== "function" && callback !== null) {
throw new TypeError("callback must be a function or null");
}
if (typeof styles !== "object" || styles === null) {
throw new TypeError("styles must be an object");
}
if (Object.keys(styles).length === 0) {
throw new Error("styles must contain at least one property");
}
let start = performance.now();
let from = {};
let to = {};
for (let prop in styles) {
from[prop] = element.style[prop] || getComputedStyle(element)[prop];
to[prop] = styles[prop];
}
let timer = setInterval(function () {
let timePassed = performance.now() - start;
let progress = timePassed / duration;
if (progress > 1) {
progress = 1;
}
for (let prop in styles) {
element.style[prop] =
from[prop] + (to[prop] - from[prop]) * progress + "px";
}
if (progress === 1) {
clearInterval(timer);
if (callback) {
callback();
}
}
}, 10);
return this;
};
/**
* 将一个元素包裹在指定的HTML元素中
* @param {Element|string} element 要包裹的元素
* @param {string} wrapperHTML 要包裹的HTML元素的字符串表示形式
* @returns {DOMUtils} - 原型链
*/
DOMUtils.wrap = function (element, wrapperHTML) {
if (typeof element === "string") {
element = document.querySelector(element);
}
// 创建一个新的div元素，并将wrapperHTML作为其innerHTML
let wrapper = document.createElement("div");
wrapper.innerHTML = wrapperHTML;
// 将要包裹的元素插入到wrapper中
element.parentElement.insertBefore(wrapper, element);
// 将要包裹的元素移动到wrapper中
wrapper.insertBefore(element, wrapper.firstChild);
return this;
};
/**
* 获取当前元素的前一个兄弟元素
* @param {Element|string} element - 当前元素
* @returns {Element} - 前一个兄弟元素
*/
DOMUtils.prev = function (element) {
if (typeof element === "string") {
element = document.querySelector(element);
}
return element.previousElementSibling;
};
/**
* 获取当前元素的后一个兄弟元素
* @param {Element|string} element - 当前元素
* @returns {Element} - 后一个兄弟元素
*/
DOMUtils.next = function (element) {
if (typeof element === "string") {
element = document.querySelector(element);
}
return element.nextElementSibling;
};
/**
* 获取当前元素的所有兄弟元素
* @param {Element|string} element - 当前元素
* @returns {Array} - 所有兄弟元素
*/
DOMUtils.siblings = function (element) {
if (typeof element === "string") {
element = document.querySelector(element);
}
return Array.from(element.parentElement.children).filter(
(child) => child !== element
);
};
/**
* 获取当前元素的父元素
* @param {Element|NodeList|string} element - 当前元素
* @returns {Element|Array} - 父元素
*/
DOMUtils.parent = function (element) {
if (typeof element === "string") {
element = document.querySelector(element);
}
if (element instanceof NodeList || element instanceof Array) {
let resultArray = [];
element.forEach((item) => {
resultArray = resultArray.concat(this.parent(item));
});
return resultArray;
} else {
return element.parentElement;
}
};
/**
* 将字符串转为Element元素
* @param {string} html
* @param {boolean} useParser 是否使用DOMParser来生成元素，有些时候通过DOMParser生成的元素有点问题
* @param {boolean} isComplete 是否是完整的
* @returns {Element}
*/
DOMUtils.parseHTML = function (html, useParser = false, isComplete = false) {
function parseHTMLByDOMParser() {
let parser = new DOMParser();
if (isComplete) {
return parser.parseFromString(html, "text/html");
} else {
return parser.parseFromString(html, "text/html").body.firstChild;
}
}
function parseHTMLByCreateDom() {
let tempDIV = document.createElement("div");
tempDIV.innerHTML = html;
if (isComplete) {
return tempDIV;
} else {
return tempDIV.firstChild;
}
}
if (useParser) {
return parseHTMLByDOMParser();
} else {
return parseHTMLByCreateDom();
}
};
/**
* 当鼠标移入或移出元素时触发事件
* @param {Element|string} element - 当前元素
* @param {Function} handler - 事件处理函数
* @returns {DOMUtils} - 原型链
*/
DOMUtils.hover = function (element, handler) {
if (typeof element === "string") {
element = document.querySelector(element);
}
DOMUtils.on(element, "mouseenter", null, handler);
DOMUtils.on(element, "mouseleave", null, handler);
return this;
};
/**
* 显示元素
* @param {Element|string} element - 当前元素
* @returns {DOMUtils} - 原型链
*/
DOMUtils.show = function (element) {
if (typeof element === "string") {
element = document.querySelector(element);
}
element.style.display = "";
return this;
};
/**
* 隐藏元素
* @param {Element|string} element - 当前元素
* @returns {DOMUtils} - 原型链
*/
DOMUtils.hide = function (element) {
if (typeof element === "string") {
element = document.querySelector(element);
}
element.style.display = "none";
return this;
};
/**
* 当按键松开时触发事件
* @param {Element|string} element - 当前元素
* @param {Function} handler - 事件处理函数
* @returns {DOMUtils} - 原型链
*/
DOMUtils.keyup = function (element, handler) {
if (typeof element === "string") {
element = document.querySelector(element);
}
DOMUtils.on(element, "keyup", null, handler);
return this;
};
/**
* 当按键按下时触发事件
* @param {Element|string} element - 当前元素
* @param {Function} handler - 事件处理函数
* @returns {DOMUtils} - 原型链
*/
DOMUtils.keydown = function (element, handler) {
if (typeof element === "string") {
element = document.querySelector(element);
}
DOMUtils.on(element, "keydown", null, handler);
return this;
};
/**
* 淡入元素
* @param {Element|string} element - 当前元素
* @param {Number} duration - 动画持续时间（毫秒）
* @param {Function} callback 动画结束的回调
* @returns {DOMUtils} - 原型链
*/
DOMUtils.fadeIn = function (element, duration = 400, callback) {
if (typeof element === "string") {
element = document.querySelector(element);
}
element.style.opacity = 0;
element.style.display = "";
let start = null;
let timer = null;
function step(timestamp) {
if (!start) start = timestamp;
let progress = timestamp - start;
element.style.opacity = Math.min(progress / duration, 1);
if (progress < duration) {
window.requestAnimationFrame(step);
} else {
if (callback && typeof callback === "function") {
callback();
}
window.cancelAnimationFrame(timer);
}
}
timer = window.requestAnimationFrame(step);
return this;
};
/**
* 淡出元素
* @param {Element|string} element - 当前元素
* @param {Number} duration - 动画持续时间（毫秒）
* @param {Function} callback 动画结束的回调
* @returns {DOMUtils} - 原型链
*/
DOMUtils.fadeOut = function (element, duration = 400, callback) {
if (typeof element === "string") {
element = document.querySelector(element);
}
element.style.opacity = 1;
let start = null;
let timer = null;
function step(timestamp) {
if (!start) start = timestamp;
let progress = timestamp - start;
element.style.opacity = Math.max(1 - progress / duration, 0);
if (progress < duration) {
window.requestAnimationFrame(step);
} else {
element.style.display = "none";
if (typeof callback === "function") {
callback();
}
window.cancelAnimationFrame(timer);
}
}
timer = window.requestAnimationFrame(step);
return this;
};
/**
* 为指定元素的子元素绑定事件
* @param {Element|string} element - 当前元素
* @param {String} selector - 子元素选择器
* @param {String} type - 事件类型
* @param {Function} handler - 事件处理函数
* @returns {DOMUtils} - 原型链
*/
DOMUtils.delegate = function (element, selector, type, handler) {
if (typeof element === "string") {
element = document.querySelector(element);
}
element.addEventListener(type, (event) => {
let target = event.target.closest(selector);
if (target && element.contains(target)) {
handler.call(target, event);
}
});
return this;
};
/**
* 切换元素的显示和隐藏状态
* @param {Element|string} element - 当前元素
* @returns {DOMUtils} - 原型链
*/
DOMUtils.toggle = function (element) {
if (typeof element === "string") {
element = document.querySelector(element);
}
if (element.style.display === "none") {
DOMUtils.show(element);
} else {
DOMUtils.hide(element);
}
return this;
};
return DOMUtils;
});
