Amazon eBook Mark

标记已购的电子书。

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         Amazon eBook Mark
// @namespace    https://greasyfork.org/users/34380
// @version      20210724
// @description  标记已购的电子书。
// @match        https://www.amazon.cn/*
// @grant        GM_setValue
// @grant        GM_getValue
// ==/UserScript==

(function () {
    'use strict';

    const is_autosave = GM_getValue('is_autosave', false);
    const loc = location.href;
    let asins_s = GM_getValue('asins_saved', []);
    let asins_a = GM_getValue('asins_added', []);

    if (loc.match(/\/kindle-dbs\/thankYouPage/) && is_autosave) {
        autoSaveBookPage();
    }
    setTimeout(() => {
        addBookButton();
        if (document.querySelector('#ng-app')) {
            saveAllBooksPage();
        } else if (loc.match(/\/dp\//) || loc.match(/\/product\//)) {
            viewBookDetailPage();
        }
        markBooksPage();
    }, 5000);

    function addBookButton() {
        document.querySelector('#nav-xshop').insertAdjacentHTML('afterbegin', `
            <a id="display-panel" class="nav-a">添加书籍</a>
        `);
        document.querySelector('body').insertAdjacentHTML('afterbegin', `
            <div id="fixed-panel">
                <button id="refresh-page">刷新</button>
                <button id="btn-add-book">添加</button>
                <button id="btn-delete-book">删除</button>
                <input id="book-link" type="text" placeholder="输入书籍链接"></input>
            </div>
        `);
        document.querySelector('#display-panel').addEventListener('click', () => {
            document.querySelector('#fixed-panel').style.display = 'block';
        });
        document.querySelector('#refresh-page').addEventListener('click', () => {
            const nodes_added = document.querySelectorAll('.added');
            for (const node of nodes_added) {
                const href = node.parentNode.href;
                const matched = href.match(/dp\/(\w+)\//) || href.match(/\/product\/(\w+)\?/);
                if (!asins_a.includes(matched[1])) {
                    node.classList.remove('added');
                }
            }
            markOwnedAdded(document);
        });
        document.querySelector('#btn-add-book').addEventListener('click', () => {
            const input_link = document.querySelector('#book-link');
            const asin = input_link.value.match(/\/dp\/(\w+)/) || input_link.value.match(/\/product\/(\w+)/);
            if (!asins_a.includes(asin[1])) {
                asins_a.push(asin[1]);
                GM_setValue('asins_added', asins_a);
                input_link.value = '';
                input_link.setAttribute('placeholder', '添加成功');
            } else {
                input_link.value = '';
                input_link.setAttribute('placeholder', '已添加');
            }
        });
        document.querySelector('#btn-delete-book').addEventListener('click', () => {
            const input_link = document.querySelector('#book-link');
            const asin = input_link.value.match(/\/dp\/(\w+)/) || input_link.value.match(/\/product\/(\w+)/);
            if (asins_a.includes(asin[1])) {
                asins_a.splice(asins_a.indexOf(asin[1]), 1);
                GM_setValue('asins_added', asins_a);
                input_link.value = '';
                input_link.setAttribute('placeholder', '删除成功');
            } else {
                input_link.value = '';
                input_link.setAttribute('placeholder', '已删除');
            }
        });
    }

    function saveAllBooksPage() {
        document.querySelector('.myx-spacing-top-mini').insertAdjacentHTML('beforeend', `
            <div id="myx-panel" class="myx-float-left">
                <button id="save-asins" type="button" title="每页可显示 200 个,滚动到页尾加载,再点击保存按钮。">保存本页电子书</button>
                <button id="clear-asins-added" type="button">清空已添加书籍</button>
                已保存 <span id="saved">${asins_s.length}</span> 本,添加已购 <span id="added">${asins_a.length}</span>本。
                <label id="label-autosave"><input id="cb-autosave" type="checkbox"></input>购买后自动保存</label>
            </div>
        `);

        document.querySelector('#save-asins').addEventListener('click', () => {
            const items = document.querySelectorAll('.listItem_myx > div');
            for (const item of items) {
                const asin = item.getAttribute('name').replace('contentTabList_', '');
                if (!asins_s.includes(asin)) { asins_s.push(asin); }
            }
            GM_setValue('asins_saved', asins_s);
            document.querySelector('#saved').innerText = asins_s.length;
        });

        document.querySelector('#clear-asins-added').addEventListener('click', () => {
            GM_setValue('asins_added', []);
        });

        document.querySelector('#cb-autosave').checked = GM_getValue('is_autosave', false);
        document.querySelector('#cb-autosave').addEventListener('click', function () {
            GM_setValue('is_autosave', this.checked);
        });
    }

    function autoSaveBookPage() {
        const asin_loc = loc.match(/asin=(\w+)&/)[1];
        if (!asins_s.includes(asin_loc)) {
            asins_s.push(asin_loc);
            GM_setValue('asins_saved', asins_s);
            document.title = '已购电子书自动保存成功。';
        }
    }

    function viewBookDetailPage() {
        const asin_loc = loc.match(/\/dp\/(\w+)/) || loc.match(/\/product\/(\w+)/);
        if (!asins_s.includes(asin_loc[1])) {
            document.querySelector('#title').insertAdjacentHTML('afterbegin', `
                <label id="label-add-book"><input id="cb-add-book" class="nav-a" type="checkbox"></input>添加到已购书籍</label>
            `);

            document.querySelector('#cb-add-book').checked = asins_a.includes(asin_loc[1]);
            document.querySelector('#cb-add-book').addEventListener('click', function () {
                if (this.checked) {
                    asins_a.push(asin_loc[1]);
                    GM_setValue('asins_added', asins_a);
                } else {
                    asins_a.splice(asins_a.indexOf(asin_loc[1]), 1);
                    GM_setValue('asins_added', asins_a);
                }
            });
        }
    }

    function markBooksPage() {
        markOwnedAdded(document);
        const config = { attributes: false, childList: true, subtree: true };
        const threadMutation = (mutationsList) => {
            for (let mutation of mutationsList) {
                if (mutation.type == 'childList' && mutation.addedNodes.length > 0) {
                    for (let node of mutation.addedNodes) {
                        if (node.nodeName == 'DIV') { markOwnedAdded(node); }
                    }
                }
            }
        };
        let container = document.querySelector("#a-page");
        let threadObserver = new MutationObserver(threadMutation);
        threadObserver.observe(container, config);
    }

    function markOwnedAdded(node) {
        // 1/2 common top and bottom 3 search 4 recommend 5 bestseller 6 product
        const title_class1 = ['.acs-product-block__product-title',
            '.a-spacing-top-small > .a-link-normal',
            '.s-line-clamp-2 > .a-link-normal.a-text-normal'];
        const titles1 = node.querySelectorAll(title_class1.join(','));
        for (const title of titles1) {
            const href = title.href;
            const asin = href.match(/\/dp\/(\w+)/)[1] ;
            if (asins_s.includes(asin)) {
                title.querySelector('*').classList.add('owned');
            } else if (asins_a.includes(asin)) {
                title.querySelector('*').classList.add('added');
            }
        }

        const title_class2 = ['.a-carousel-card > div > .a-link-normal:nth-last-of-type(1)',
            '.aok-inline-block.zg-item > .a-link-normal'];
        const titles2 = node.querySelectorAll(title_class2.join(','));
        for (const title of titles2) {
            const href = title.href;
            const asin = href.match(/\/dp\/(\w+)/)[1];
            if (asins_s.includes(asin)) {
                title.querySelector(':nth-child(2)').classList.add('owned');
            } else if (asins_a.includes(asin)) {
                title.querySelector(':nth-child(2)').classList.add('added');
            }
        }

        const title_class3 = ['.a-box-group.a-spacing-top-micro >.a-size-small.a-link-normal'];
        const titles3 = node.querySelectorAll(title_class3.join(','));
        for (const title of titles3) {
            const href = title.href;
            const asin = href.match(/\/product\/(\w+)/)[1];
            if (asins_s.includes(asin)) {
                title.classList.add('owned');
            } else if (asins_a.includes(asin)) {
                title.classList.add('added');
            }
        }
    }

    document.querySelector('head').insertAdjacentHTML('beforeend', `<style>
        #myx-panel { margin-left: 10px; }
        #myx-panel > button{ height: 31px; padding: 0 10px 0 11px; }
        #fixed-panel { display: none; position: fixed; left: 240px; bottom: 30px; z-index: 2; }
        #label-add-book { width: max-content; font-size: 14px; }
        #label-add-book:hover { background-color: #fc9b1a; }
        #cb-add-book { margin: revert; vertical-align: middle; position: revert; }
        #label-autosave { display: revert; padding: 5px; }
        #label-autosave:hover { background-color: #fc9b1a; }
        #cb-autosave { margin: revert; vertical-align: middle; position: revert; }
        .owned { background-color: #8bc34a; }
        .added { background-color: #fc9b1a; }
    </style>`);
})();