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Asurascans bookmark saver

This script adds two buttons to the bookmarks page. One button will export the list of titles in your bookmarks, the other will import a list of titles and overwrite your bookmarks.

当前为 2022-07-20 提交的版本，查看 最新版本。

// ==UserScript==
// @name        Asurascans bookmark saver
// @namespace   TestScript
// @author      Sieyk
// @grant       none
// @license     MIT
// @match       https://www.asurascans.com/bookmarks/
// @noframes
// @require     https://openuserjs.org/src/libs/ls18502857770.gmail.com/FileSaver.js
// @require  http://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js
// @run-at      document-end
// @version     1.0
// @description  This script adds two buttons to the bookmarks page. One button will export the list of titles in your bookmarks, the other will import a list of titles and overwrite your bookmarks.
// ==/UserScript==
(function () {
    "use strict";

    window.addEventListener('load', () => {
        $("body").append ( `
    <input id="filePick" type="file" hidden=true>
    ` );
    addButton('Save Bookmarks', saveBookmarks, '7%')
    addButton('Import Bookmarks', importBookmarks, '4%')
    })

    function addButton(text, onclick, posY, cssObj) {
        cssObj = cssObj || {position: 'absolute', bottom: posY, left:'4%', 'z-index': 3}
        let button = document.createElement('button'), btnStyle = button.style
        document.body.appendChild(button)
        button.innerHTML = text
        button.onclick = onclick
        Object.keys(cssObj).forEach(key => (btnStyle[key] = cssObj[key]))
        return button
    }

    function saveBookmarks() {
        var blob = new Blob([localStorage.getItem("bookmark")],
                { type: "text/plain;charset=utf-8" });
        saveAs(blob, "bookmarks.txt")
    }

    async function importBookmarks() {
        // open file picker
        const input = event.srcElement.previousElementSibling.previousElementSibling;
        try {
            input.value = "";
            input.showPicker();
            console.debug(input.value);
            while (input.value == "") {
                await new Promise(r => setTimeout(r, 100));
            };
        } catch(error) {
            window.alert(input);
            return
        }
        console.debug(input.files);
        var reader = new FileReader();
        reader.readAsText(input.files[0]);
        while (reader.readyState != 2) {
            await new Promise(r => setTimeout(r, 100));
        }
        try {
        var arr = JSON.parse(reader.result);
        } catch(error) {
            window.alert("Invalid data type for bookmarks! Must be an Array.");
            return
        }
        if (Array.isArray(arr)) {
            localStorage.setItem("bookmark", reader.result);
            window.location.reload();
        }
        else {
            window.alert("Invalid data type for bookmarks! Must be an Array.");
            return
        }
    }
}());