V2EX favorates collection extractor

lazy livid did not implement https://www.v2ex.com/t/95800 ; please read https://www.v2ex.com/t/632448 for instruction

您需要先安装一个扩展,例如 篡改猴Greasemonkey暴力猴,之后才能安装此脚本。

You will need to install an extension such as Tampermonkey to install this script.

您需要先安装一个扩展,例如 篡改猴暴力猴,之后才能安装此脚本。

您需要先安装一个扩展,例如 篡改猴Userscripts ,之后才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey,才能安装此脚本。

您需要先安装用户脚本管理器扩展后才能安装此脚本。

(我已经安装了用户脚本管理器,让我安装!)

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

(我已经安装了用户样式管理器,让我安装!)

// ==UserScript==
// @name         V2EX favorates collection extractor
// @namespace    https://github.com/cxumol/userscripts
// @version      0.1
// @description  lazy livid did not implement https://www.v2ex.com/t/95800 ; please read https://www.v2ex.com/t/632448 for instruction
// @author       cxumol
// @match        https://www.v2ex.com/my/topics*
// @grant        GM_xmlhttpRequest
// @connect      https://www.v2ex.com/my/topics*
// ==/UserScript==

// Editor: Tampermonkey v4.10 for Firefox
// Formater: https://beautifier.io/

window.onload = function() {
    'use strict';

    // Your code here...
    let getAllFav = function() {
        let totalPageNum = Number(document.querySelector(".page_normal:last-of-type").textContent);
        console.log("totalPageNum: " + totalPageNum);
        let presentPageNum = 0;
        //         let topicLinks = Object.values(document.getElementsByClassName("item"));
        let topicLinksO = new Object(); // for keeping the order of pages under async XHRs
        let topicLinks = new Array(); // store topics with original order
        let pageCount = 0;

        if (totalPageNum >= 1) {
            while (presentPageNum < totalPageNum) {
                presentPageNum++;
                // ref https://www.tampermonkey.net/documentation.php?ext=dhdg#GM_xmlhttpRequest
                GM_xmlhttpRequest({
                    method: "GET",
                    url: "https://www.v2ex.com/my/topics?p=" + presentPageNum,
                    // responseType: "document", // Greasy Monkey API doesn't support this
                    onload: function(response) {
                        let temp = document.createElement("html");
                        temp.innerHTML = response.responseText;

                        let thisPresentPageNum = Number(temp.getElementsByClassName("page_current")[0].textContent);
                        console.log("got topics from page # " + thisPresentPageNum);
                        topicLinksO[thisPresentPageNum] = Object.values(temp.getElementsByClassName("item"));
                        //
                        pageCount++;
                        if (pageCount == totalPageNum) {
                            console.log("pageCount: " + pageCount);
                            console.log("totalPageNum: " + totalPageNum);
                            for (let i = 1; i <= totalPageNum; i++) {
                                topicLinks = topicLinks.concat(topicLinksO[i]);
                            }
                            showItems(topicLinks);
                            addDownloader();
                        }
                    }
                })
            }
        }
        //         return topicLinks;
    }

    let showItems = function(topicLinks) {
        let resultList = document.createElement("ol");
        console.log("Showing Whole Collection!");
        for (let i of topicLinks) {
            let li = document.createElement("li");
            li.append(i);
            resultList.append(li);
        }
        if (!document.getElementById("showcase")) {
            console.log("Rebuilt!");
            addShowcase();
        }
        document.getElementById("all_fav").append(resultList);
    }
    //
    let doFavExt = function() {
        getAllFav()
    }
    //
    let addShowcase = function() {
        let showcase = document.createElement('div');
        showcase.className = "box";
        showcase.id = "showcase";
        showcase.innerHTML = '<button id="btn_do_fav_ext">Show All Fav Topics</button><div id="all_fav"></div>';
        document.getElementById("Rightbar").append(showcase);
        document.getElementById("btn_do_fav_ext").addEventListener("click", () => doFavExt());
    }
    //
    let addDownloader = function() {
        // https://stackoverflow.com/a/18197341
        var downloader = document.createElement('a');
        downloader.textContent = "Save";
        downloader.className = 'page_current';
        let HTML2down = document.createElement("html");
        HTML2down.innerHTML = `<head>
<meta name="Content-Type" content="text/html;charset=utf-8" />
<link rel="stylesheet" type="text/css" media="screen" href="https://www.v2ex.com/css/basic.css" />
<link rel="stylesheet" type="text/css" media="screen" href="https://www.v2ex.com/static/dist/combo.css" />
<link rel="stylesheet" type="text/css" media="screen" href="https://www.v2ex.com/css/desktop.css" />
<link rel="stylesheet" href="https://www.v2ex.com/static/css/tomorrow.css" type="text/css" />
<link rel="icon" sizes="192x192" href="https://www.v2ex.com/static/img/v2ex_192.png" />
<link rel="shortcut icon" href="https://www.v2ex.com/static/img/icon_rayps_64.png" type="image/png" />
</head><body>` + document.getElementById("all_fav").outerHTML + `</body>`;
        HTML2down.append();
        downloader.setAttribute('href', 'data:application/octet-stream,' + encodeURIComponent(HTML2down.outerHTML));
        downloader.setAttribute('download', "All_my_V2EX_favorate_collections.html");
        document.getElementById("btn_do_fav_ext").after(downloader)
    }

    // if (document.readyState == 'complete') {
    console.log("Initialize!");
    addShowcase();
    // }


};