中原iLearning 2.0 PDF下載器

在中原iLearning 2.0 PDF教材頁面添加下載按鈕
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// ==UserScript==
// @name         中原iLearning 2.0 PDF下載器
// @namespace    http://tampermonkey.net/
// @version      1.1
// @description  在中原iLearning 2.0 PDF教材頁面添加下載按鈕
// @icon         data:image/png;base64,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
// @match        *://ilearning.cycu.edu.tw/mod/pdfannotator/*
// @grant        none
// @run-at       document-end
// @license MIT
// ==/UserScript==

(function() {
    'use strict';

    function extractFullUrl() {
        const scripts = document.scripts;
        for (let script of scripts) {
            const match = script.textContent.match(/"fullurl":\s*"([^"]+)"/);
            if (match) {
                return match[1].replace(/\\/g, ''); // 去除反斜線
            }
        }
        return null;
    }

    function createDownloadButton(fullUrl) {
        const button = document.createElement('button');
        button.id = 'pdf-download-btn';
        button.title = '下載 PDF';
        button.innerHTML = '➜'; // 下載符號
        button.onclick = function() {
            window.open(fullUrl, '_blank');
        };

        // 設定按鈕樣式
        Object.assign(button.style, {
            position: 'fixed',
            bottom: '8rem',
            right: '2rem',
            width: '36px',
            height: '36px',
            backgroundColor: 'orange',
            color: 'white',
            border: 'none',
            borderRadius: '50%',
            padding: '0 0 3px 0',
            fontSize: '22px',
            display: 'flex',
            alignItems: 'center',
            justifyContent: 'center',
            cursor: 'pointer',
            boxShadow: '0px 4px 6px rgba(0, 0, 0, 0.1)',
            transform: 'rotate(90deg)'
        });
        document.body.appendChild(button);
    }

    function init() {
        const fullUrl = extractFullUrl();
        console.log(fullUrl)
        if (fullUrl) {
            createDownloadButton(fullUrl);
        }
    }

    window.addEventListener('load', init);
})();
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