Greasy Fork

// ==UserScript==// @name         js-Extensions-touchJS// @namespace    http://tampermonkey.net/// @version      1.4// @description  js-Extensions-touchJS是一个非常简单的原生js touch扩展，用于适配移动端的常用touch操作（点击tab、双击dbTab、长按longPress、长按终止longPressCancel、滑动swipe以及具体滑动方向left right up down）// @author       tutu辣么可#(greasyfork)/IcedWatermelonJuice(github)// @grant        none// ==/UserScript==(function() {var touchJS = {}function jsonExtend(json1 = {}, json2 = {}, json3 = {}) {return Object.assign(json1, json2, json3)}function getFnName(fn) {if (fn.name) {return fn.name} else {var fnstr = fn.toString().match(/function\s*([^(]*)\(/);return fnstr ? fnstr[1] : null}}touchJS.bind = function(target, evt, fn, fnName = null) {if (!target || typeof target !== "object") {console.error("touchJS.bind(target, evt, fn, fnName)参数错误，对象(target)不存在");return false;}// 预处理var that = target;that.jsTouchFnMap = that.jsTouchFnMap ? that.jsTouchFnMap : {};var fnMap = jsonExtend({}, that.jsTouchFnMap),fnKeyArray = ["swipe", "left", "right", "up", "down", "tap", "dbTap", "longPress","longPressCancel"]; //可用的事件名function addFn(e, f, n) {if (fnKeyArray.indexOf(e) < 0) {let msg = "touchJS.bind(target, evt, fn, fnName)参数错误，指定事件(evt)不支持。支持的事件列表:";console.error(msg + fnKeyArray.toString());return false;}fnMap[e] = fnMap[e] ? fnMap[e] : {};if (!n) { //无方法名，获取并使用默认数字iddefAry = Object.keys(fnMap[e]).filter((v) => {/^\d{1,}$/.test(v)});//获取可用数字idif (!fnMap[e][defAry.length]) { //假设id连续，长度就是新idn = defAry.length} else { //说明id不连续（手动删过事件方法），寻找中间缺少的iddefAry.sort((a, b) => {return a - b});for (let i = 0; i < defAry.length; i++) {if (defAry[i] !== i) {n = i;break;}}}}fnMap[e][n] = freturn true}if (typeof evt === "string" && typeof fn === "function") {if (!addFn(evt, fn, fnName ? fnName : getFnName(fn))) {return false}} else if (typeof evt === "object" && !fn) {for (let e in evt) {if (!addFn(e, evt[e], getFnName(evt[e]))) {return false}}}that.jsTouchFnMap = jsonExtend({}, that.jsTouchFnMap, fnMap);//添加事件if (!that.jsTouchFnMap.eventLoaded) {that.jsTouchFnMap.eventLoaded = true;var execFn = function(evt) { //执行方法if (!evt) {return false}if (/left|right|up|down/.test(evt)) {evt = [evt, "swipe"];} else {evt = [evt];}evt.forEach((e) => {e = that.jsTouchFnMap[e] ? that.jsTouchFnMap[e] : {};for (let i in e) {if (typeof e[i] === "function") {e[i]();}}})}var lp_timer = -1,tap_timer = -1,lp_flag = false,swipe_flag = false,tap_sum = 0,pos = {x: 0,y: 0};that.addEventListener('touchstart', ts, false);that.addEventListener('touchmove', tm, false);that.addEventListener('touchend', te, false);//具体实现function dir(past, now) { //判方向if (Math.abs(past.x - now.x) > Math.abs(past.y - now.y)) {if (now.x > past.x) {return "right"} else {return "left"}} else {if (now.y > past.y) {return "down"} else {return "up"}}return null}function ts(e) { //touchstarte = e || window.eventlp_timer !== -1 && clearTimeout(lp_timer);lp_timer = -1;lp_flag = false;swipe_flag = false;pos = {x: e.changedTouches[0].clientX,y: e.changedTouches[0].clientY}lp_timer = setTimeout(function() {if (!swipe_flag) {lp_timer = -1;lp_flag = true;execFn("longPress")}}, 600)}function tm(e) { //touchmovevar e = e || window.event;let temp = {x: e.changedTouches[0].clientX,y: e.changedTouches[0].clientY}if (!lp_flag && (Math.abs(pos.x - temp.x) > 10 || Math.abs(pos.y - temp.y) > 10)) {swipe_flag = true;lp_timer !== -1 && clearTimeout(lp_timer);lp_timer = -1;execFn(dir(pos, temp));}}function te(e) { //touchendvar e = e || window.event;lp_timer !== -1 && clearTimeout(lp_timer);tap_timer !== -1 && clearTimeout(tap_timer);lp_timer = -1;tap_timer = -1;if (lp_flag) {execFn("longPressCancel");} else if (!swipe_flag) {tap_sum += 1;if (tap_sum >= 2) {tap_sum = 0;execFn("dbTap");} else {tap_timer = setTimeout(() => {tap_sum = 0;execFn("tap");}, 200)}}}}return that}touchJS.unbind = function(target, evt, fnName = null) {if (!target || typeof target !== "object") {console.error("touchJS.unbind(target, evt, fnName)参数错误，对象(target)不存在");return false;}var that = target;if (typeof evt === "string") {that.jsTouchFnMap = that.jsTouchFnMap ? that.jsTouchFnMap : {};if (that.jsTouchFnMap[evt]) {if (fnName) {fnName = typeof fnName === "function" ? getFnName(fnName) : fnName;delete that.jsTouchFnMap[evt][fnName];} else {delete that.jsTouchFnMap[evt]}}}return that}window.touchJS=touchJS;})();