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

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

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

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

// ==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();
    // }


};