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不影响所有手动点击，真正随心所欲；屏蔽后自动停止监听，不浪费一丝系统资源。
当前为
// ==UserScript==
// @name 知乎屏蔽自动弹出登录框，不影响正常使用，比如手动点击登录，回答，关注，收藏等
// @namespace http://bbs.91wc.net/zhihu-no-modal.htm
// @version 0.2.2
// @description 不影响所有手动点击，真正随心所欲；屏蔽后自动停止监听，不浪费一丝系统资源。
// @author Wilson
// @icon https://static.zhihu.com/static/favicon.ico
// @match *://www.zhihu.com/question/*
// @license GPL License
// ==/UserScript==
(function() {
'use strict';
//是否开启调试模式
var debug = 0;
//知乎弹窗有四种情况：1.不弹窗；2.仅加载时弹窗1次；3.加载和滚动时各弹窗1次；4.滚动条不在顶部时，加载时可能会加载2次弹窗
//日志输出
var def = function(v){return typeof v !== "undefined";}
var log = function(v1,v2, v3){
if(!debug || !console||!console.log) return;
if(def(v1) && def(v2) && def(v3)){console.log(v1,v2,v3);return;}
if(def(v1) && def(v2)){console.log(v1,v2);return;}
if(def(v1)){console.log(v1);return;}
}
//hideLogin标记是否手动点击登录 true代表系统自动弹出，false代表手动操作后的弹窗
var hideLogin = true, listenLoginRemoveFuns = [];
//取消监听事件
var removeLoginModalEvent = function(evt){ listenLoginRemoveFuns[evt](); }
//弹窗屏蔽处理函数
var listenLoginModal = function(evt){
log(evt, "监听开始");
//取消事件监听
var removeDOMNodeInsertedEvent = function(){
log(evt, "取消事件监听");
if(evt === "scroll"){
document.body.removeEventListener('DOMNodeInserted', scrollDOMNodeInsertedEvent, false);
document.body.removeEventListener('click', scrollDOMClickEvent, false);
}else{
document.body.removeEventListener('DOMNodeInserted', DOMNodeInsertedEvent, false);
document.body.removeEventListener('click', DOMClickEvent, false);
}
if(removeLoadLoginTimer) clearTimeout(removeLoadLoginTimer);
}
listenLoginRemoveFuns[evt] = removeDOMNodeInsertedEvent;
//处理弹窗屏蔽事件
var DOMNodeInsertedEvent = function(e){
if(!hideLogin || e.target.nodeType !== 1) return;
var signFlowModal = e.target.getElementsByClassName('signFlowModal');
if(signFlowModal.length!==0){
//屏蔽系统自动弹出登录框
for(var i in signFlowModal){
if(signFlowModal[i] && signFlowModal[i].previousElementSibling){
log(evt, "屏蔽1次弹窗");
signFlowModal[i].previousElementSibling.click();
}
}
//屏蔽后，取消监听事件，以节省资源
if(removeLoadLoginTimer) clearTimeout(removeLoadLoginTimer);
removeLoadLoginTimer=setTimeout(function(){ removeDOMNodeInsertedEvent(); }, 30000);
}
}
if(evt === "scroll"){
//滚动时，再次监听弹窗事件
var scrollDOMNodeInsertedEvent = function(e){DOMNodeInsertedEvent(e);}
document.body.addEventListener('DOMNodeInserted', scrollDOMNodeInsertedEvent, false);
} else {
//开始监听事件
document.body.addEventListener('DOMNodeInserted', DOMNodeInsertedEvent, false);
}
var removeLoadLoginTimer=0;
if(evt === "load"){
//加载时，超过60秒内未弹窗，取消监听事件，以节省资源
removeLoadLoginTimer=setTimeout(function(){ removeDOMNodeInsertedEvent(); log(evt, '超时未弹窗');}, 60000);
}
//监听手动点击事件
var DOMClickEvent = function(){
log(evt, "触发点击事件");
hideLogin = false;
setTimeout(function(){ hideLogin = true; }, 100);
}
if(evt === "scroll"){
var scrollDOMClickEvent = function(e){DOMClickEvent(e);}
document.body.addEventListener('click', scrollDOMClickEvent, false);
} else {
document.body.addEventListener('click', DOMClickEvent, false);
}
}
//监听刷新时的弹窗
listenLoginModal("load");
//监听滚动时的弹窗
var isListened = false;
var DOMScrollEvent = function(){
if(!isListened){
isListened = true;
removeLoginModalEvent("load");
listenLoginModal("scroll");
}
log("scrollTop="+document.documentElement.scrollTop, "滚动监听中");
//滚动时，如果未加载弹窗则取消事件监听，这里知乎会在scrollTop1000-1500之间弹窗，这里保险起见取2000
var docEle = document.documentElement;
if(docEle.scrollTop > 2000 || docEle.scrollTop+docEle.clientHeight === docEle.scrollHeight){
window.removeEventListener('scroll', DOMScrollEvent, false);
log("scrollTop="+document.documentElement.scrollTop, "结束滚动事件");
setTimeout(function(){
removeLoginModalEvent("scroll");
}, 60000);
}
}
window.addEventListener('scroll', DOMScrollEvent, false);
})();