Greasy Fork

// ==UserScript==// @name         b站回溯首页推荐换一换// @namespace    qwq0// @version      0.4// @description  b站推荐换一换添加撤回按钮// @author       qwq0// @match        https://www.bilibili.com/// @match        https://www.bilibili.com/?*// @run-at       document-start// @icon         https://www.google.com/s2/favicons?sz=64&domain=bilibili.com// @grant        none// ==/UserScript==(async function (){'use strict';if (location.pathname != "/")return;let history = [];let nowIndex = -1;let clickdButton = false;let clickdBacktrackButton = false;let oldFetch = window.fetch.bind(window);window.fetch = async (...param) =>{if ((clickdButton || clickdBacktrackButton) &&typeof (param[0]) == "string" &&(param[0].startsWith("https://api.bilibili.com/x/web-interface/wbi/index/top/feed/rcmd") ||param[0].startsWith("https://api.bilibili.com/x/web-interface/index/top/feed/rcmd") ||param[0].startsWith("//api.bilibili.com/x/web-interface/wbi/index/top/feed/rcmd") ||param[0].startsWith("//api.bilibili.com/x/web-interface/index/top/feed/rcmd"))){if (clickdButton){clickdButton = false;if (nowIndex < history.length - 1){nowIndex++;if (nowIndex >= 1)backtrackButton.style.display = "block";return history[nowIndex].clone();}else{if (nowIndex == -1){ // 第一层点击按钮时尝试构造推荐响应try{let feedCardList = document.querySelectorAll("main div.feed-card");let cardDataList = [];for (let o of feedCardList){try{let link = String(o.querySelectorAll(".bili-video-card__image--link")[0].href);let title = String(o.querySelectorAll(".bili-video-card__info--tit")[0].innerText);let cover = String(o.querySelectorAll("img")[0].src);// let bvInd = link.indexOf("/BV");// let bvid = link.slice(bvInd + 1);cardDataList.push({goto: "av",// bvid: bvid,uri: link,pic: cover,title: title});}catch (err){ }}if (cardDataList.length == 0)throw "Unable to extract element";let dataObj = {code: 0,message: "0",ttl: 1,data: {item: cardDataList}};// console.log("test", dataObj);let response = new Response(JSON.stringify(dataObj), {});history.push(response.clone());nowIndex++;}catch (err){console.error("build first rcmd failure:", err);}}/*** @type {Response}*/let response = await oldFetch(...param);history.push(response.clone());nowIndex++;if (nowIndex >= 1)backtrackButton.style.display = "block";// console.log(response.clone());return response;}}else{clickdBacktrackButton = false;nowIndex--;if (nowIndex < 0)nowIndex = 0;if (nowIndex == 0)backtrackButton.style.display = "none";return history[nowIndex].clone();}}return oldFetch(...param);};function parseHtmlString(htmlString){let wrapper = document.createElement("div");wrapper.innerHTML = htmlString;return wrapper.firstChild;}let buttonRoll = await new Promise(resolve =>{let intervalId = setInterval(() =>{let buttonRoll = document.querySelectorAll(".feed-roll-btn")[0];if (buttonRoll != undefined){resolve(buttonRoll);clearInterval(intervalId);}}, 150);});let refreshButton = buttonRoll.children[0];let backtrackButton = parseHtmlString(`<button style="margin-top: 10px;" class="primary-btn roll-btn"><span>回溯</span></button>`);buttonRoll.appendChild(backtrackButton);backtrackButton.style.display = "none";refreshButton.addEventListener("click", () =>{if (!clickdBacktrackButton)clickdButton = true;}, true);backtrackButton.addEventListener("click", () =>{clickdBacktrackButton = true;refreshButton.click();});})();