jQuery-Extensions-touchJS是一个非常简单的jQuery 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）
当前为
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.cn-greasyfork.org/scripts/454450/1123121/jQuery-Extensions-touchJS.js
// ==UserScript==
// @name jQuery-Extensions-touchJS
// @namespace http://tampermonkey.net/
// @version 1.4
// @description jQuery-Extensions-touchJS是一个非常简单的jQuery 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辣么可爱(greasyfork)/IcedWatermelonJuice(github)
// @grant none
// ==/UserScript==
(function() {
if (typeof $ !== "function" && typeof jQuery !== "function") {
console.error("jQuery-Extensions-touchJS 缺少jQuery依赖")
return false;
}
function jsonExtend(json1={},json2={},json3={}){
return $.extend(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
}
}
$.fn.touch = function(evt, fn, fnName = null) {
// 预处理
var $that = $(this),
that = $that[0];
that.jQueryTouchFnMap = that.jQueryTouchFnMap ? that.jQueryTouchFnMap : {};
var fnMap = jsonExtend({}, that.jQueryTouchFnMap),
fnKeyArray = ["swipe", "left", "right", "up", "down", "tap", "dbTap", "longPress",
"longPressCancel"];//可用的事件名
function addFn(e, f, n) {
if (fnKeyArray.indexOf(e) < 0) {
let msg = "$.touch(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id
defAry=Object.keys(fnMap[e]).filter((v)=>{/^\d{1,}$/.test(v)});
//获取可用数字id
if(!fnMap[e][defAry.length]){//假设id连续，长度就是新id
n=defAry.length
}else{//说明id不连续（手动删过事件方法），寻找中间缺少的id
defAry.sort((a,b)=>{return a-b});
for(let i =0;i<defAry.length;i++){
if(defAry[i]!==i){
n=i;
break;
}
}
}
}
fnMap[e][n] = f
return 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.jQueryTouchFnMap = jsonExtend({}, that.jQueryTouchFnMap, fnMap);
//添加事件
if (!that.jQueryTouchFnMap.eventLoaded) {
that.jQueryTouchFnMap.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.jQueryTouchFnMap[e] ? that.jQueryTouchFnMap[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) { //touchstart
e = e || window.event
lp_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) { //touchmove
var 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) { //touchend
var 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
}
$.fn.unbindTouch = function(evt, fnName = null) {
var $that = $(this),
that = $that[0];
if (typeof evt === "string") {
that.jQueryTouchFnMap = that.jQueryTouchFnMap ? that.jQueryTouchFnMap : {};
if (that.jQueryTouchFnMap[evt]) {
if (fnName) {
fnName = typeof fnName === "function" ? getFnName(fnName) : fnName;
delete that.jQueryTouchFnMap[evt][fnName];
} else {
delete that.jQueryTouchFnMap[evt]
}
}
}
return $that
}
})(jQuery);