移动端笔记

function addLoadEvent(func) {
var oldonload = window.onload;
if (typeof window.onload != "function") {
window.onload = func;
} else {
window.onload = function () {
oldonload();
func();
}
}
}

//通过正则的方式判断是否为数字;
var isNumber = /^[0-9]+.?[0-9]*$/;
function isNum(obj) {
//console.log(obj);
if (obj == null || obj == undefined) {
return false;
} else {
return isNumber.test(obj);
}

}

var DS = {};


//ready function的实现
//调用$(function(){........})

DS.$ = ready = window.ready = function (fn) {
if (document.addEventListener) {//兼容非IE
document.addEventListener("DOMContentLoaded", function () {
//注销事件,避免反复触发
//多次调用会导致这个方法多次触发,所以在每次调用结束,就取消掉。
document.removeEventListener("DOMContentLoaded", arguments.callee, false);
fn();//调用参数函数
}, false);
} else if (document.attachEvent) {//兼容IE
document.attachEvent("onreadystatechange", function () {
if (document.readyState === "complete") {
document.detachEvent("onreadystatechange", arguments.callee);
fn();
}
});
}
};

/////******定义一个全局的对象DS,用来存储方法****////



//依赖注入。。registry = {
// key1: value,
// key2: function() {},
// key3: {
// a: b,
// c: function() {}
// }
//
// }
//这里的key1,key2,,,分别对应着不同的服务,把这些作为实参传到方法的形参里去,通过依赖注入
//方法就可以使用参数对应的服务和服务对应的方法,对象,参数


DS.inject = function (func, registry) {
//registry是保存有服务对象和方法的对象;func是要被注入服务的对象方法

//将方法整个转为字符串,可以就正则对其里面的参数可以进行匹配
var source = func.toString();
var matchers = source.match(/^functions*[^(]*(s*([^)]*))/m);
//只有matchers的长度大于1才表示,传进去的函数带有形参
if (matchers && matchers.length > 1) {
var args = [];

//得到形参列表转成数组,其实本来就是一个数组
var argnames = matchers.slice(1)[0].split(",");
//这里的args将会得到func里面所拥有的key对应的registry里面的value,value是什么类型,就
//会给这个func里面对应的参数指定为什么类型,,
//比如func(key1, key2, key3){
//
// 在函数体内就会有对应的
// key1 = value;
// key2 = function(){};
// key3 = {
// a:b,
// c:function() {}
// }
// 在函数体内这些对象和方法可以拿来直接调用,其实就相当于在函数里面new了一个registry,
// 只不过是通过依赖注入来完成了这一步,这样做可以节省内存空间,
//
//
// }
for (var i = 0, len = argnames.length; i < len; i++) {
args[i] = registry[argnames[i].trim()];
}
func.apply(null, args);
}
};

//dom选择器

var $$ = function (selector) {
"use strict";
var arg = makeArray(arguments);
var newArr = [];
if (!document.querySelector(selector)) {
return false;
} else if (document.querySelectorAll(selector).length === 1) {
if (arg[1] != true) {
return document.querySelector(selector);
} else if (arg[1] == true) {
newArr.push(document.querySelector(selector));

return newArr;
}
} else {
return Array.prototype.slice.call(document.querySelectorAll(selector));
}
};

//原型继承

function inherits(a, b) {
var c = function () {
};
c.prototype = b.prototype;
a.prototype = new c;
}

//得到样式

function getCss(ele, attr) {
if (window.getComputedStyle) {
return parseFloat(getComputedStyle(ele, null)[attr]);
} else {
if (attr === "opacity") {
if (ele.currentStyle[attr] === undefined) {
var reg = /alpha(opacity=(d{1,3}))/;
var opacityVal = ele.currentStyle.filter;
if (reg.test(opacityVal)) {
ele.style.opacity = parseFloat(RegExp.$1) / 100;
return parseFloat(RegExp.$1) / 100;
} else {
return 1;
}
}
}
return parseFloat(ele.currentStyle[attr]);
}
}

//设置样式

function setCss(ele, attr, val) {
if (attr === "opacity") {
ele.style.opacity = val;
ele.style.filter = "alpha(opacity=" + val * 100 + ")"
} else {
ele.style[attr] = val;
}
}

//animate及fadein等动画实现

function move(ele, obj, interval, duration, callback) {
window.clearInterval(ele.timer);
//var begin=getCss(ele,attr);
//var interval=15;//每一步时间
var times = 0;//动画累计时间
//var change=target-begin;
var oBegin = {};
var oChange = {};
for (var attr in obj) {
var begin = getCss(ele, attr);
var target = obj[attr];
var change = target - begin;
if (change) {
oBegin[attr] = begin;
oChange[attr] = change;
}
}
function step() {
times += interval;
if (times < duration) {
for (var attr in oChange) {
if (attr === "opacity") {
var val = (times / duration) * oChange[attr] + oBegin[attr];
setCss(ele, attr, val)
} else {
var val = (times / duration) * oChange[attr] + oBegin[attr] + "px";
setCss(ele, attr, val);
}
}
} else {
for (var attr in obj) {
if (attr === "opacity") {
var target = obj[attr];
var val = target;
setCss(ele, attr, val);
} else {
var target = obj[attr];
var val = target + "px";
setCss(ele, attr, val);
}
}
window.clearInterval(ele.timer);
if (typeof callback === "function") {
callback.call(ele);
}
}
}

ele.timer = window.setInterval(step, interval);
}

//转数组

var makeArray = function (obj) {
if (!obj || obj.length === 0) {
return []
}
if (!obj.length) {
return obj;
}
try {
return [].slice.call(obj);
} catch (e) {
var i = 0;
var j = obj.length;
var a = [];
for (; i < j; i++) {
a.push(obj[i])
}
return a;
}
};

//定义一个全局的对象,用来存储我的方法。


//////*****给元素添加类名***/////

DS.addClass = function (selector, name) {
var str = name;
var test = new RegExp(str, "g");
var tClass = selector.className;
if (selector.nodeType !== 1 || tClass.match(test)) {
return
}
var cn = selector.className.trim();
return selector.className = (cn + " " + name).trim();
};

////******移除元素的指定类名***8///////

DS.removeClass = function (selector, name) {
if (selector.nodeType !== 1) return;
var cn = selector.className;
var str = name;
var Ncn = "";
var test = new RegExp(str, "g");
if (!cn.match(test)) return;
var cnL = cn.split(" ");
for (var i = 0; i < cnL.length; i++) {
if (cnL[i] !== str) {
Ncn += cnL[i] + " ";
}
}
return selector.className = Ncn.trim();
};

////////****************寻找元素的某一父级,并判断该父级是否存在****///

DS.parentsUntil = function (selector, name) {
//如果该元素没有父级,或者不存在该元素,
if (!selector.parentNode || !document.querySelectorAll(name)[0]) return;
var pn = selector.parentNode, _selfname;
if (name.slice(0, 1) === "." && pn.nodeType === 1) {
_selfname = new RegExp(name.slice(1), "g");
try {
while (!_selfname.test(pn.className)) {
pn = pn.parentNode;
}
} catch (e) {
return;
}
return pn;
} else if (name.slice(0, 1) === "#") {
_selfname = new RegExp(name.slice(1), "g");
try {
while (!_selfname.test(pn.id)) {
pn = pn.parentNode;
}
} catch (e) {
return;
}
return pn;
} else {
_selfname = new RegExp(name, "i");
try {
while (!_selfname.test(pn.tagName)) {
pn = pn.parentNode;
}
} catch (e) {
return;
}
}
return pn;
};


/////////**********客户端user-Agent验证************/////
/////////**********验证当前用户是通过什么浏览器或者什么类型的客户端访问该页面************/////
////***if(browser.versions.ios||browser.versions.iPhone||browser.versions.iPad){do what you want}*****/////

var browser = {
versions: function () {
var u = navigator.userAgent, app = navigator.appVersion;
return { //移动终端浏览器版本信息
trident: u.indexOf('Trident') > -1, //IE内核
presto: u.indexOf('Presto') > -1, //opera内核
webKit: u.indexOf('AppleWebKit') > -1, //苹果、谷歌内核
gecko: u.indexOf('Gecko') > -1 && u.indexOf('KHTML') == -1, //火狐内核
mobile: !!u.match(/AppleWebKit.*Mobile.*/), //是否为移动终端
ios: !!u.match(/(i[^;]+;( U;)? CPU.+Mac OS X/), //ios终端
android: u.indexOf('Android') > -1 || u.indexOf('Linux') > -1 || u.indexOf("Adr"), //android终端或uc浏览器
iPhone: u.indexOf('iPhone') > -1, //是否为iPhone或者QQHD浏览器
iPad: u.indexOf('iPad') > -1, //是否iPad
webApp: u.indexOf('Safari') == -1 //是否web应该程序,没有头部与底部
};
}(),
language: (navigator.browserLanguage || navigator.language).toLowerCase()
};

/////////**********验证当前用户是通过什么浏览器或者什么类型的客户端访问该页面************/////


////////************监听事件的注册************//////
//注册触摸事件
//触摸事件后,touched对象会保存四个值
// {
// spanX:触摸的起始水平坐标(相对于body),
// spanY:触摸的起始垂直坐标(相对于body),
// moveX:水平手指划过距离,
// moveY:垂直手指划过距离,
// }

var touched = {};

//注册触摸开始事件

function touchS(event) {
//event.preventDefault();
var touches = event.targetTouches.length;
if (touches == 1) {
//event.preventDefault();
var mytouch = event.targetTouches[0];
touched.moveX = 0;
touched.moveY = 0;
var spanX = mytouch.pageX;
var spanY = mytouch.pageY;
touched.spanX = spanX;
touched.spanY = spanY;
}
}

//touch控制
//触摸move事件触发

function touchM(event) {
//event.preventDefault();
var touches = event.targetTouches.length;
if (touches == 1) {
//event.preventDefault();
var mytouch = event.targetTouches[0];
var goX = mytouch.pageX;
var goY = mytouch.pageY;
var moveX = goX - touched.spanX;
var moveY = goY - touched.spanY;
touched.moveX = moveX;
touched.moveY = moveY;
}
}


function preventTouch(event) {
event.preventDefault();
}
//添加监听事件,监听touch事件

document.addEventListener("touchstart", touchS, false);
document.addEventListener("touchmove", touchM, false);


//滑动距离小于5 的判断
function moveClick() {
return (Math.abs(touched.moveX) < 5 && Math.abs(touched.moveY) < 5) || (touched.moveX == undefined && touched.moveY == undefined);
}
////////***********监听事件注册结束,页面有触摸事件时触发*************//////


//获取id,参数代表id所在查询字符串中的位置,,也可以直接传参数的名称
function getId(index) {
var href = window.location.href;
//如果不传值,index默认为0
/*if (typeof index === undefined) {
index = 0;
}*/
if (isNum(index)) {
if (href.indexOf("?") > -1) {
var query = href.split("?")[1];
if (query.indexOf("&") > -1) {
var querystring = query.split("&");
if (index > querystring.length - 1) {
console.warn("can not get query what you find, please check you url is contain the query what needed");
return null
} else {
var id = querystring[index];
return id.split("=")[1];
}
} else {
if (index > 0) {
console.warn("can not get query what you find, please check you url is contain the query what needed");
return null
} else if (index == 0) {
return query.split("=")[1]
}
}
} else {
console.warn("can not get query what you find, please check you url is contain the query what needed");
}
} else if (!isNum(index)) {
if (href.indexOf("?") > -1) {
var query = href.split("?")[1];
if (query.indexOf(index) == -1) {
return
} else {
//if (query.indexOf("&") == -1) {
// return query.split("=")[1];
//} else {
var queryObj = {};
query.split("&").forEach(function (que) {
queryObj[que.split("=")[0]] = que.split("=")[1]
});
return queryObj[index]

//}
}
}
}
}


//是否为ios if(isIos()) {}
function isIos() {
return browser.versions.ios || browser.versions.iPhone || browser.versions.iPad
}



//进度条样式和dom结构
DS.$(function() {
var loadingbar = document.createElement("div");
loadingbar.className = "loadingbar";
loadingbar.innerHTML = "<div class='loading'><img src='/addons/tiger_taoke/template/mobile/tbgoods/style9/images/loading.gif'></div>";
document.querySelector("body").appendChild(loadingbar);
});


//loading进度条开启和结束

var loadingAndLoadedservices = {

//进度条开始
loading: function () {

var $loadingbar = $$(".loadingbar");
var $loading = $$(".loading");

console.log($$(".loading"));
$loadingbar.style.display = "-webkit-box";
var nomove = document.createElement("div");
nomove.className = "nomove";
nomove.addEventListener("touchstart", function (event) {
event.preventDefault();
});
if (!$$(".nomove")) {
$$("body").appendChild(nomove);
}

},

//进度条结束
loaded: function (tips, callback, time, opacitytime) {

var $loadingbar = $$(".loadingbar");
var $loading = $$(".loading");

if(tips == "") {
$loadingbar.setAttribute("style", "");
$loading.setAttribute("style", "");
} else {
var style = $loading.style.cssText;
$loadingbar.style.display = "-webkit-box";
$loading.style.cssText = style + "height:30px;auto;padding:0 10px;line-height:30px;opacity:0.6;";
$loading.innerHTML = tips;
}

if(DS.alphatime) {
clearTimeout(DS.alphatime);
}
if(DS.hidetime) {
clearTimeout(DS.hidetime);
}

//$$(".loading").style.display = "block";
/*move($$(".loading"), {opacity:0}, 13, 1000, function() {
$$(".loading").style.cssText = "display: none; 2rem;height: 2rem;opacity: 0.6;position: fixed;top: 50%;margin-top: -1rem;left: 50%;margin-left: -1rem;z-index: 100;font-size: 12px;color: #fff;background: #000;text-align: center;";
if($$(".nomove")) {
$$(".nomove").remove();
}
});*/
if(typeof time == "undefined") {
time = (tips == "") ? 0 :500;
}
if(typeof opacitytime == "undefined") {
opacitytime = (tips == "") ? 0 :1000;
}
DS.alphatime = setTimeout(function () {
$loading.style.opacity = 0;
$loading.style.transition = "opacity " + opacitytime + "ms";
}, time);

DS.hidetime = setTimeout(function () {
$loadingbar.setAttribute("style", "");
$loading.setAttribute("style", "");
//$$(".loadingbar").style.cssText = "display:none; 100%;height: 2rem; -webkit-box-pack: center; -webkit-box-align: center;position: fixed;top: 50%;margin-top: -1rem;z-index: 100;";
$loading.innerHTML = "<img src='/addons/tiger_taoke/template/mobile/tbgoods/style9/images/loading.gif'>";


if ($$(".nomove")) {
$$("body").removeChild($$(".nomove"));
}


if (typeof callback == "function") {
callback();
}

}, opacitytime + time);
}
};

//不同页面执行不同的loadingandloaded方法.

//第二个参数为true时执行loading动画,,第三个参数为true执行loaded动画

//tips要对用户展示的小提示,,
function isLoadingOrIsLoaded(tips) {
"use strict";
var args = makeArray(arguments);

//执行loading动画
function loading(loading) {
loading();
}

//执行loaded动画
function loaded(loaded) {
loaded(tips, args[3], args[4], args[5]);
}

if (args[1] === true && args[2] === true) {

//这里可以做加的loading效果
DS.inject(loading, loadingAndLoadedservices);

setTimeout(function () {
DS.inject(loaded, loadingAndLoadedservices);
}, 3000)

} else if (args[1] === true && args[2] === false || args[2] === undefined || args[2] == "") {

//这里只loading不loaded
DS.inject(loading, loadingAndLoadedservices);
} else if (args[1] == "false" || args[1] == "" || args[1] === undefined && args[2] == "true") {

//这里只loaded不loading
DS.inject(loaded, loadingAndLoadedservices);
}

}

var ImageLoad = function() {
this.images = [], this.imageUrls = [], this.imagesLoaded = 0, this.imagesFailedToLoad = 0, this.imageLoadingProgress = 0, this.imageLen = 0
};
ImageLoad.prototype = {
queueImage: function(a) {
var e = this;
return "[object Array]" === Object.prototype.toString.call(a) ? a.forEach(function(a) {
e.imageUrls.push(a)
}) : this.imageUrls.push(a), this.imageLen = this.imageUrls.length, this
},
preLoad: function(a, e) {
this.loadImages(), this.imageLoadingProgressCallback(a, e)
},
loadImages: function() {
var a = this;
return this.imageUrls.forEach(function(e, i) {
var o = new Image;
o.src = e, o.complete ? (a.images[i] = o, a.imagesLoaded++) : (o.onload = function(e) {
return function() {
a.images[e] = o, a.imagesLoaded++
}
}(i), o.onerror = function() {
a.imagesFailedToLoad++
})
}), this
},
imageLoadingProgressCallback: function(a, e) {
var i = this,
o = setInterval(function() {
var s = Math.floor((i.imagesLoaded + i.imagesFailedToLoad) / i.imageLen * 100);
i.imageLoadingProgress = isNaN(s) ? 100 : s, 100 === i.imageLoadingProgress && (clearInterval(o), setTimeout(function() {
e.call(i), i.imagesLoaded = 0, i.imagesFailedToLoad = 0
}, 300)), a.call(i, i.imageLoadingProgress)
}, 10)
},
getLoadAfterImages: function() {
return this.images
}
}, window.ImageLoad = ImageLoad;
//isLoadingOrIsLoaded("", true, false);开始加载条
//isLoadingOrIsLoaded("要显示的值", false, true, callback, time(显示时间), opacitytime(到渐隐消失进行的时间))
原文地址:https://www.cnblogs.com/asylm/p/8473319.html