https://static-cdn.vip-scdkeyss.com/mall/js/common/page_seo.js?v231008

1//分页
2
3// JavaScript Document
4var Page = function (options) {
5    var defaults = {
6        url: null,//
7        maxP: 0, //Maximum number of pages
8        nowP: 1, //Current number of pages
9        showC:8,//The total number of page numbers displayed when there are multiple pages
10        currClass:'active',//The class of the current page
11    };
12    var option=$.extend(defaults, options);
13    this._url = option.url;
14    this._nowP = option.nowP;
15    this._maxP = option.maxP;
16    this._currClass = option.currClass;
17    this._showC = option.showC;
18}
19Page.prototype.checkData = function(){
20    if(!!this._url&&!!this._maxP)
21        return true;
22    return false;
23}
24//This parameter determines the previous, next, or direct page number
25Page.prototype.actionPage = function(pageAction){
26    var _this = this;
27    if(!!!pageAction&&!_this.checkData())
28        return false;
29    switch(pageAction){
30        case "next":
31            if(_this._nowP + 1 > _this._maxP)
32                flage = true;
33            _this._nowP = _this._nowP + 1 >= _this._maxP ? this._maxP : _this._nowP + 1;break;
34        case "prev":
35            if(_this._nowP - 1 < 1)
36                flage = true;
37            _this._nowP = _this._nowP - 1 <= 1 ? 1 : _this._nowP - 1;break;
38        default:
39            pageAction = parseInt(pageAction);
40            if(isNaN(pageAction))
41                return false;
42            _this._nowP = parseInt(pageAction);
43    }
44    return true;
45}
46Page.prototype.showPage = function(){
47    var _this = this;
48    if(!_this.checkData())
49        return false;
50    var str = '<ul class="pagination pagination-purchase">';
51    var p_prev = _this._nowP - 1 <= 1 ? 1 : _this._nowP - 1;
52    str += "<li><a aria-label='Previous' href="+ _this._url + p_prev +"><span aria-hidden='true'>«</span></a></li>"
53
54    var disc = parseInt(_this._showC/3);  //How many page numbers are displayed for each paragraph when there are too many pages
55    var dism = disc + _this._showC%3;     //Number of segments displayed when there are too many pages
56    var selcss = "";
57    for(var i = 1; i <= disc && i <= _this._maxP; i++){
58        if(_this._nowP == i)
59            selcss =_this._currClass;
60        str += "<li class='" + selcss + " '><a href="+ _this._url + i +" > " + i + " </a></li>";
61        selcss = "";
62    }
63    var hafem = parseInt(dism/2);   //Display half of the current page in front and back respectively
64    var sStart = _this._nowP - hafem;   //Too many pages. At the beginning of the second display, be sure to display the front code in person
65    var sEnd = _this._nowP + hafem;
66    if(sStart <= disc || _this._nowP <= disc || sStart >= _this._maxP - disc) {      //When the front page is in front, the beginning of the middle section is the beginning of the end page of the previous paragraph
67        sStart = disc + 1;
68        sEnd = sStart + disc;
69    }
70    for (var i = sStart; i <= sEnd &&i <= _this._maxP; i++) {
71        if (_this._nowP == i)
72            selcss =_this._currClass;
73        str += "<li class='" + selcss + " '><a href="+ _this._url + i + " > " + i + " </a></li>";
74        selcss = "";
75    }
76    var eStart = _this._maxP - disc;
77    if(sEnd >= eStart)       //When the front page is in the middle, the beginning of the back section is the beginning of the middle end page
78        eStart = sEnd + 1;
79    for (var i = eStart; i <= _this._maxP; i++) {
80        if (_this._nowP == i)
81            selcss =_this._currClass;
82        str += "<li class='" + selcss + " '><a href="+ _this._url + i +" > " + i + " </a></li>";
83        selcss = "";
84    }
85    var p_next = _this._nowP + 1 >= _this._maxP ? this._maxP : _this._nowP + 1;
86    str += "<li><a aria-label='Next' href="+ _this._url + p_next + "><span aria-hidden='true'>»</span></a></li></ul>";
87    return str;
88}
89function js_Page(page,option) {
90    js_Page.s_P = new Page(option);
91    if(option.maxP <=0 ) {
92        $('.pagers').hide();
93        return;
94    }
95    $('.pagers').show();
96    if(!isNaN(page)||page=="prev"||page=="next") {
97        if (js_Page.s_P.actionPage(page)) {
98            $('.pagers').html(js_Page.s_P.showPage());
99        }
100    }
101}
102
103var url=location.href; //Get the entire address bar
104var htmlurl= url.indexOf(".html") != -1;
105if(htmlurl == true){
106      if(url.indexOf('?page') >= 0) {
107        var s = url.substring(url.indexOf('?page'), url.length);
108        url = url.replace(s, '');
109        url = url + '?page=';
110    }else{
111        url = url + '?page=';
112    }
113}else{
114      if(url.indexOf('-page') >= 0) {
115        var s = url.substring(url.indexOf('-page'), url.length);
116        url = url.replace(s, '');
117        url = url + '-page-';
118    }else{
119        url = url + '-page-';
120    }
121
122}
123
124//Provide page count and current page within the page
125//Var count=; Number of pages
126//Var current=; Current Page
127new js_Page(current,{url:url,maxP:count});
128