自动保留京东搜索的筛选条件，点击按钮即可再运用
// ==UserScript==
// @name 京东搜索助手
// @namespace https://github.com/yeomanye
// @version 0.1.0
// @description 自动保留京东搜索的筛选条件，点击按钮即可再运用
// @require https://greasyfork.org/scripts/34143-debug/code/debug.js?version=246342
// @author Ming Ye
// @match https://search.jd.com/search?*
// @include https://search.jd.com/search?*
// @grant none
// ==/UserScript==
(function() {
'use strict';
myDebugger.debugD = false;
var log = myDebugger.consoleFactory("jd-assistant","log",null);
var debugTrue = myDebugger.debugTrue;
var interval;
var tagClickHandler = function(evt){
var target = evt.target;
var className = target.parentNode.parentNode.className;
var targetClass = target.className;
var targetId = target.id;
if(className.indexOf('f-line') < 0 && className.indexOf('f-sort') < 0 && targetClass.indexOf('J_btnsConfirm') < 0 && targetId.indexOf('J-toolbar-load-hook') < 0) return;
//延时，保证能够正确的读取到
setTimeout(function(){
var aElms = document.querySelectorAll('.crumb-select-item');
//没有选中任何标签则返回
if(aElms.length === 0)return;
var arr = [];
for(var i=0,len=aElms.length;i<len;i++){
var tmpArr = aElms[i].title.split('、');
for(var j=0,len2=tmpArr.length;j<len2;j++){
arr.push(tmpArr[j]);
}
}
log.logObj('arr',arr);
localStorage.setItem('jd-preSeaTagName',JSON.stringify(arr));
createTag();
},600);
};
var createTag = function(){
setTimeout(function(){
var panel = document.querySelector('.f-sort');
var target = document.querySelector('.icon-tag.toggle-btn.recover-filter');
if(target) return;
var newA = document.createElement('a');
newA.href = 'javascript:;';
newA.innerText = '恢复筛选';
newA.className = 'icon-tag toggle-btn recover-filter';
panel.appendChild(newA);
newA.addEventListener('click',searchTags);
},1000);
};
var init = function(){
document.body.addEventListener('click',tagClickHandler);
createTag();
};
var searchTags = function(){
var preTagArr = JSON.parse(localStorage.getItem('jd-preSeaTagName'));
var tagElms = document.querySelectorAll('.J_valueList a');
var tagArr = [];
for(var i=0,len=tagElms.length;i<len;i++){
tagArr.push(tagElms[i].innerText);
}
var queryStr = '&ev=',len = queryStr.length;
var preType = '';
preTagArr.forEach(function(str){
var index = tagArr.indexOf(str);
if(index >= 0){
var tmpArr = tagElms[index].href.split('&');
var hasSameType = true;//是否存在相同类型的标签
tmpArr.forEach(function(str){
var i = str.search('ev=.+');
if(i>=0) {
var curType = str.split('_')[0];
if(curType !== preType)
queryStr += str.replace('ev=','');
else{
queryStr = queryStr.substr(0,queryStr.length - 3);
str = str.replace(curType+'_','%7C%7C');
queryStr += str;
}
preType = curType;
}
});
}
});
if(queryStr.length !== len)
location.search += queryStr;
};
init();
})();