Easy Web Page to Markdown

Convert selected HTML to Markdown

当前为 2024-02-08 提交的版本,查看 最新版本

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         Easy Web Page to Markdown
// @name:zh      网页转Markdown工具
// @namespace    http://tampermonkey.net/
// @version      0.1.2
// @description  Convert selected HTML to Markdown
// @description:zh 将选定的HTML转换为Markdown
// @author       shiquda
// @match        *://*/*
// @namespace    https://github.com/shiquda/shiquda_UserScript
// @supportURL   https://github.com/shiquda/shiquda_UserScript/issues
// @grant        GM_addStyle
// @grant        GM_registerMenuCommand
// @grant        GM_setClipboard
// @require      https://code.jquery.com/jquery-3.6.0.min.js
// @require      https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js
// @require      https://unpkg.com/turndown/dist/turndown.js
// @require      https://cdnjs.cloudflare.com/ajax/libs/marked/12.0.0/marked.min.js
// @license      AGPL-3.0
// ==/UserScript==


(function () {
    'use strict';

    // Create Turndown service
    var turndownService = new TurndownService({ codeBlockStyle: 'fenced' });
    turndownService.addRule('strikethrough', {
        filter: ['del', 's', 'strike'],
        replacement: function (content) {
            return '~' + content + '~'
        }
    })


    // Add CSS for the selection box and the modal
    GM_addStyle(`
        .h2m-selection-box {
            border: 2px dashed #f00;
            background-color: rgba(255, 0, 0, 0.2);
        }
        .h2m-no-scroll {
            overflow: hidden;
        }
        .h2m-modal {
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 80%;
            height: 80%;
            background: white;
            border-radius: 10px;
            display: flex;
            flex-direction: row;
            z-index: 9999;
        }
        .h2m-modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 9998;
        }
        .h2m-modal textarea,
        .h2m-modal .h2m-preview {
            width: 50%;
            height: 100%;
            padding: 20px;
            box-sizing: border-box;
            overflow-y: auto;
        }
        .h2m-modal .h2m-buttons {
            position: absolute;
            bottom: 10px;
            right: 10px;
        }
        .h2m-modal .h2m-buttons button {
            margin-left: 10px;
            background-color: #4CAF50; /* Green */
            border: none;
            color: white;
            padding: 13px 16px;
            border-radius: 10px;
            text-align: center;
            text-decoration: none;
            display: inline-block;
            font-size: 16px;
            transition-duration: 0.4s;
            cursor: pointer;
        }
        .h2m-modal .h2m-buttons button:hover {
            background-color: #45a049;
        }
        .h2m-modal .h2m-close {
            position: absolute;
            top: 10px;
            right: 10px;
            cursor: pointer;
            width: 25px;
            height: 25px;
            background-color: #f44336;
            color: white;
            font-size: 20px;
            border-radius: 50%;
            text-align: center;
            line-height: 25px;
        }
    `);



    var isSelecting = false;
    var selectedElement = null;

    $(document).on('mouseover', function (e) {
        if (isSelecting) {
            $(selectedElement).removeClass('h2m-selection-box');
            selectedElement = e.target;
            $(selectedElement).addClass('h2m-selection-box');
        }
    }).on('wheel', function (e) {
        if (isSelecting) {
            e.preventDefault();
            if (e.originalEvent.deltaY < 0) {
                selectedElement = selectedElement.parentElement;
            } else {
                selectedElement = $(selectedElement).find(':hover')[0];
            }
            $('.h2m-selection-box').removeClass('h2m-selection-box');
            $(selectedElement).addClass('h2m-selection-box');
        }
    }).on('keydown', function (e) {
        if (e.key === 'Escape') {
            endSelecting();
        }
    }).on('mousedown', function (e) {
        if (isSelecting) {
            e.preventDefault();
            var markdown = convertToMarkdown(selectedElement);
            showMarkdownModal(markdown);
            endSelecting();
        }
    });

    // HTML2Markdown
    function convertToMarkdown(element) {
        var html = element.outerHTML;
        let turndownMd = turndownService.turndown(html);
        turndownMd = turndownMd.replaceAll('[\n\n]', '[]');
        return turndownMd;
    }


    // 预览
    function showMarkdownModal(markdown) {
        var $modal = $(`
                <div class="h2m-modal-overlay">
                    <div class="h2m-modal">
                        <textarea>${markdown}</textarea>
                        <div class="h2m-preview">${marked.parse(markdown)}</div>
                        <div class="h2m-buttons">
                            <button class="h2m-copy">Copy to clipboard</button>
                            <button class="h2m-download">Download as MD</button>
                        </div>
                        <div class="close">X</div>
                    </div>
                </div>
            `);





        $modal.find('textarea').on('input', function () {
            // console.log("Input event triggered");
            var markdown = $(this).val();
            var html = marked.parse(markdown);
            // console.log("Markdown:", markdown);
            // console.log("HTML:", html);
            $modal.find('.h2m-preview').html(html);
        });

        $modal.on('keydown', function (e) {
            if (e.key === 'Escape') {
                $modal.remove();
            }
        });


        $modal.find('.h2m-copy').on('click', function () {
            GM_setClipboard($modal.find('textarea').val());
            $modal.find('.h2m-copy').text('Copied!');
            setTimeout(() => {
                $modal.find('.h2m-copy').text('Copy to clipboard');
            }, 1000);
        });

        $modal.find('.h2m-download').on('click', function () {
            var markdown = $modal.find('textarea').val();
            var blob = new Blob([markdown], { type: 'text/markdown' });
            var url = URL.createObjectURL(blob);
            var a = document.createElement('a');
            a.href = url;
            // 当前页面标题 + 时间
            a.download = `${document.title}-${new Date().toISOString().replace(/:/g, '-')}.md`;
            a.click();
        });

        $modal.find('.close').on('click', function () {
            $modal.remove();
        });

        // $modal.on('click', function (e) {
        //     if (e.target === this) {
        //         $modal.remove();
        //     }
        // });

        $('body').append($modal);
    }

    // 开始选择
    function startSelecting() {
        $('body').addClass('h2m-no-scroll');
        isSelecting = true;
    }

    // 结束选择
    function endSelecting() {
        isSelecting = false;
        $('.h2m-selection-box').removeClass('h2m-selection-box');
        $('body').removeClass('h2m-no-scroll');
    }

    $(document).on('keydown', function (e) {
        if (e.ctrlKey && e.key === 'm') {
            e.preventDefault();
            startSelecting()
        }
    });

    // Register menu command
    GM_registerMenuCommand('Convert to Markdown', function () {
        startSelecting()
    });
})();