知乎助手，包含屏蔽购物推荐、屏蔽信息流广告、按关键词屏蔽、屏蔽知乎（专心工作）、右键添加在知乎中搜索

知乎助手，屏蔽回答中的购物推荐、信息流广告等等
当前为 2020-05-06 提交的版本，查看最新版本。
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// ==UserScript==
// @name         知乎助手，包含屏蔽购物推荐、屏蔽信息流广告、按关键词屏蔽、屏蔽知乎（专心工作）、右键添加在知乎中搜索
// @namespace    http://tampermonkey.net/
// @version      1.0.6
// @description  知乎助手，屏蔽回答中的购物推荐、信息流广告等等
// @author       桃源隐叟
// @match        *://www.zhihu.com/*
// @match        *://www.zhihu.com
// @homepageURL       https://github.com/taoyuancun123/modifyText/blob/master/modifyText.js
// @supportURL        https://github.com/taoyuancun123/modifyText/issues
// @grant        none
//@require https://code.jquery.com/jquery-2.1.4.min.js
// ==/UserScript==

(function() {
    'use strict';
    /* globals jQuery, $, waitForKeyElements */

    // Your code here...
    var controlPanel=`<div style="z-index=9999;position:fixed;left:50px;top:300px;border:1px solid #888;padding:30px;" id="control-div">
<h2>设置屏蔽选项</h2>
<br>
<span>屏蔽购物推荐</span><input type="radio" name="recommend" value="on" checked>开<input type="radio" name="recommend" value="off">关<br>
<span>屏蔽信息流广告</span><input type="radio" name="ads" value="on" checked>开<input type="radio" name="ads" value="off">关<br>
<span>屏蔽关键词</span><input type="radio" name="keyword" value="on" checked>开<input type="radio" name="keyword" value="off">关<br>
<input type="text" placeholder="test1,test2" class="blockkeyword"><br>
<span>屏蔽知乎</span><input type="radio" name="zhihu" value="on" >开<input type="radio" name="zhihu" value="off" checked>关<br>
<input type="text" placeholder="好好工作，暂时别看知乎，目前XX还没有完成" class="blocksite"><br>
</div>`

    document.body.insertAdjacentHTML("afterBegin",controlPanel);


    window.onload=()=>{
        initSetting();
        loadSetting();
        funcBlockAds();
        funcBlockByKeyWord();
        funcBlockSite();
    }

    document.body.onscroll=function(){
        funcBlockRecommend();
        funcBlockAds();
        funcBlockByKeyWord();
        funcBlockSite();
    }


    function funcBlockRecommend(){
        if($("[name='recommend']:checked")[0].value==="on"){
            $(".RichText-MCNLinkCardContainer").css("display","none");
        }else{
            $(".RichText-MCNLinkCardContainer").css("display","block");
        }
    }
    function funcBlockAds(){
        if($("[name='ads']:checked")[0].value==="on")
        {
            $(".TopstoryItem--advertCard").css("display","none");
        }else{
            $(".TopstoryItem--advertCard").css("display","none");
        }
    }

    function funcBlockByKeyWord(){
        var blockKeywords=$(".blockkeyword")[0].value;
        if(blockKeywords!=""){
            var bkArray=blockKeywords.split(",");
            for(let i=0;i<bkArray.length;i++){
                if($("[name='keyword']:checked")[0].value==="on"){
                    $(`.TopstoryItem:contains(${bkArray[i]})`).css("display","none");
                }else{
                    $(`.TopstoryItem:contains(${bkArray[i]})`).css("display","block");
                }
            }
        }

    }

    function funcBlockSite(){
        if($("[name='zhihu']:checked")[0].value==="on"){
            var blockTip=$(".blocksite")[0].value?$(".blocksite")[0].value:$(".blocksite")[0].placeholder;
            var blockHtml=`<h1 style="text-align:center;font-size:50px;">${blockTip}</h1>`;
            //$("body").css("display","none");
            //$("#control-div").css("display","block");
            //$("body").html(blockHtml);
            var bodyChildren=$("body").children();
            for(let i=0;i<bodyChildren.length;i++){
                if(bodyChildren[i].id!="control-div"){
                    $(bodyChildren[i]).css("display","none")
                }
            }
            $("body").prepend(blockHtml);
            $("#container").css("display","none");
            $("iframe").css("display","none");
        }else{
            //$("body").html("");
        }
    }


    $("[name='recommend']").on("click",function(){
        setCookie('recommend',$("[name='recommend']:checked")[0].value);
    });

    $("[name='ads']").on("click",function(){
        setCookie('ads',$("[name='ads']:checked")[0].value);
    });

    $("[name='keyword']").on("click",function(){
        setCookie('blockkeywordSwitch',$("[name='keyword']:checked")[0].value);
        setCookie('blockkeyword',$(".blockkeyword")[0].value);
    });

    $("[name='zhihu']").on("click",function(){
        setCookie('blocksiteswitch',$("[name='zhihu']:checked")[0].value);
        setCookie('blocksiteTip',$(".blocksite")[0].value);
    });

    $(".blockkeyword").blur(function(){
        setCookie('blockkeyword',$(".blockkeyword")[0].value);
    });

    $(".blocksite").blur(function(){
        setCookie('blocksiteTip',$(".blocksite")[0].value);
    });


    function setCookie(name,value)
    {
        var Days = 30;
        var exp = new Date();
        exp.setTime(exp.getTime() + Days*24*60*60*1000);
        document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
    }

    function getCookie(name)
    {
        var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");

        if(arr=document.cookie.match(reg))

            return unescape(arr[2]);
        else
            return null;
    }

    function loadSetting(){
        if(getCookie("recommend")!=null){
            $(`[name='recommend'][value=${getCookie("recommend")}]`)[0].checked=true;
        }else{
        }

        if(getCookie("ads")!=null){
            $(`[name='ads'][value=${getCookie("ads")}]`)[0].checked=true;
        }else{
        }

        if(getCookie("blockkeywordSwitch")!=null){
            $(`[name='keyword'][value=${getCookie("blockkeywordSwitch")}]`)[0].checked=true;
            $(".blockkeyword")[0].value=getCookie("blockkeyword");
        }else{
        }

        if(getCookie("blocksiteswitch")!=null){
            $(`[name='zhihu'][value=${getCookie("blocksiteswitch")}]`)[0].checked=true;
            $(".blocksite")[0].value=getCookie("blocksiteTip");
        }else{
        }
    }

    function initSetting(){
        if(getCookie("recommend")==null){
            setCookie('recommend',$("[name='recommend']:checked")[0].value);
        }else{
        }

        if(getCookie("ads")==null){
            setCookie('ads',$("[name='ads']:checked")[0].value);
        }else{
        }

        if(getCookie("blockkeywordSwitch")==null){
            setCookie('blockkeywordSwitch',$("[name='keyword']:checked")[0].value);
            setCookie('blockkeyword',$(".blockkeyword")[0].value);
        }else{
        }

        if(getCookie("blocksiteswitch")==null){
            setCookie('blocksiteswitch',$("[name='zhihu']:checked")[0].value);
            setCookie('blocksiteTip',$(".blocksite")[0].value);
        }else{
        }
    }

})();
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