html-tools/paste-rich-text.html at main · levups/html-tools · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Rich Text HTML Extractor</title>
    <link rel="stylesheet" href="common.css">
    <style>
        body {
            display: flex;
            flex-direction: column;
            height: 100vh;
            overflow: hidden;
        }

        .container {
            flex: 1;
            min-height: 0;
        }

        .pane {
            display: flex;
            flex-direction: column;
            min-height: 0;
        }

        #pasteArea {
            flex: 1;
            border: none;
            padding: 16px;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            font-size: 0.9375rem;
            line-height: 1.7;
            outline: none;
            background: var(--card-bg);
            color: var(--text-primary);
            overflow: auto;
            min-height: 0;
        }

        .paste-status {
            display: none;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            color: var(--accent-mint);
            font-weight: 500;
        }

        .paste-status.visible {
            display: flex;
        }

        .paste-status svg {
            width: 14px;
            height: 14px;
        }

        #htmlOutput {
            flex: 1;
            min-height: 0;
        }

        #previewContent {
            flex: 1;
            padding: 16px;
            overflow: auto;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            font-size: 0.9375rem;
            line-height: 1.7;
            background: var(--card-bg);
            color: var(--text-primary);
            min-height: 0;
        }

        #previewContent:empty::before {
            content: "HTML preview will appear here...";
            color: var(--text-muted);
        }

        .toggle-switch {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
            user-select: none;
        }

        .toggle-switch input {
            position: absolute;
            opacity: 0;
            width: 0;
            height: 0;
        }

        .toggle-slider {
            position: relative;
            width: 44px;
            height: 24px;
            background: var(--input-border);
            border-radius: 12px;
            transition: background-color 0.2s;
        }

        .toggle-slider::before {
            content: '';
            position: absolute;
            top: 2px;
            left: 2px;
            width: 20px;
            height: 20px;
            background: white;
            border-radius: 50%;
            transition: transform 0.2s;
            box-shadow: var(--shadow-sm);
        }

        .toggle-switch input:checked + .toggle-slider {
            background: var(--accent-blue);
        }

        .toggle-switch input:checked + .toggle-slider::before {
            transform: translateX(20px);
        }

        .toggle-switch input:focus + .toggle-slider {
            box-shadow: 0 0 0 3px var(--ring-color);
        }

        .toggle-label {
            font-size: 0.875rem;
            color: var(--text-secondary);
        }

        .info-text {
            text-align: center;
            color: var(--text-muted);
            font-size: 0.8125rem;
            margin-top: 8px;
        }
    </style>
</head>
<body>

    <a href="index.html" class="back-link">
        <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
            <path d="M19 12H5M12 19l-7-7 7-7"/>
        </svg>
        All Tools
    </a>

    <header>
        <h1>Rich Text HTML Extractor</h1>
        <p class="subtitle">Paste formatted text to extract HTML</p>
    </header>

    <div class="controls">
        <button id="clearBtn" class="secondary">Clear All</button>
        <label class="toggle-switch">
            <input type="checkbox" id="stripAttributes" checked>
            <span class="toggle-slider" aria-hidden="true"></span>
            <span class="toggle-label">Strip attributes</span>
        </label>
    </div>

    <div class="container">
        <div class="pane">
            <div class="pane-header">
                <span class="label">
                    <svg class="icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                        <path d="M16 4h2a2 2 0 0 1 2 2v14a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2V6a2 2 0 0 1 2-2h2"></path>
                        <rect x="8" y="2" width="8" height="4" rx="1" ry="1"></rect>
                    </svg>
                    Paste Area
                </span>
                <span id="pasteStatus" class="paste-status">
                    <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5">
                        <polyline points="20 6 9 17 4 12"></polyline>
                    </svg>
                    Extracted
                </span>
            </div>
            <textarea id="pasteArea" placeholder="Paste rich text here (Ctrl+V or ⌘V)..." spellcheck="false"></textarea>
        </div>

        <div class="pane">
            <div class="pane-header">
                <span class="label">
                    <svg class="icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                        <polyline points="16 18 22 12 16 6"></polyline>
                        <polyline points="8 6 2 12 8 18"></polyline>
                    </svg>
                    HTML Output
                </span>
                <button id="copyBtn" class="copy-btn">Copy</button>
            </div>
            <textarea id="htmlOutput" readonly placeholder="HTML code will appear here..." spellcheck="false"></textarea>
        </div>

        <div class="pane">
            <div class="pane-header">
                <span class="label">
                    <svg class="icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                        <path d="M1 12s4-8 11-8 11 8 11 8-4 8-11 8-11-8-11-8z"></path>
                        <circle cx="12" cy="12" r="3"></circle>
                    </svg>
                    Preview
                </span>
            </div>
            <div id="previewContent"></div>
        </div>
    </div>

    <script>
        const pasteArea = document.getElementById('pasteArea');
        const pasteStatus = document.getElementById('pasteStatus');
        const htmlOutput = document.getElementById('htmlOutput');
        const previewContent = document.getElementById('previewContent');
        const clearBtn = document.getElementById('clearBtn');
        const copyBtn = document.getElementById('copyBtn');
        const stripAttributesCheckbox = document.getElementById('stripAttributes');

        let rawHtml = '';

        const voidElements = new Set(['area','base','br','col','embed','hr','img','input','link','meta','source','track','wbr']);

        function prettyPrint(html) {
            const doc = new DOMParser().parseFromString(html, 'text/html');
            const lines = [];

            function serialize(node, indent) {
                if (node.nodeType === Node.TEXT_NODE) {
                    const text = node.textContent.trim();
                    if (text) lines.push('  '.repeat(indent) + text);
                } else if (node.nodeType === Node.ELEMENT_NODE) {
                    const tag = node.tagName.toLowerCase();
                    let attrs = '';
                    for (const attr of node.attributes) {
                        attrs += ` ${attr.name}="${attr.value}"`;
                    }
                    if (voidElements.has(tag)) {
                        lines.push('  '.repeat(indent) + `<${tag}${attrs}>`);
                    } else if (node.children.length === 0 && node.textContent.trim().length < 80) {
                        lines.push('  '.repeat(indent) + `<${tag}${attrs}>${node.textContent.trim()}</${tag}>`);
                    } else {
                        lines.push('  '.repeat(indent) + `<${tag}${attrs}>`);
                        for (const child of node.childNodes) {
                            serialize(child, indent + 1);
                        }
                        lines.push('  '.repeat(indent) + `</${tag}>`);
                    }
                }
            }

            for (const child of doc.body.childNodes) {
                serialize(child, 0);
            }
            return lines.join('\n');
        }

        function stripAllAttributes(html) {
            const doc = new DOMParser().parseFromString(html, 'text/html');

            function processNode(node) {
                if (node.nodeType === Node.ELEMENT_NODE) {
                    while (node.attributes.length > 0) {
                        node.removeAttribute(node.attributes[0].name);
                    }
                    for (const child of node.childNodes) {
                        processNode(child);
                    }
                }
            }

            for (const child of doc.body.childNodes) {
                processNode(child);
            }

            return doc.body.innerHTML;
        }

        function updateOutput() {
            if (!rawHtml) {
                htmlOutput.value = '';
                previewContent.innerHTML = '';
                return;
            }

            let outputHtml = stripAttributesCheckbox.checked
                ? stripAllAttributes(rawHtml)
                : rawHtml;

            htmlOutput.value = prettyPrint(outputHtml);
            previewContent.innerHTML = outputHtml;
        }

        pasteArea.addEventListener('paste', function(e) {
            const html = e.clipboardData.getData('text/html');
            if (html) {
                e.preventDefault();
                rawHtml = html;
                pasteArea.value = '';
                updateOutput();
                pasteStatus.classList.add('visible');
            }
        });

        stripAttributesCheckbox.addEventListener('change', updateOutput);

        clearBtn.addEventListener('click', () => {
            pasteArea.value = '';
            pasteStatus.classList.remove('visible');
            htmlOutput.value = '';
            previewContent.innerHTML = '';
            rawHtml = '';
            pasteArea.focus();
        });

        copyBtn.addEventListener('click', () => {
            if (!htmlOutput.value) return;
            navigator.clipboard.writeText(htmlOutput.value).then(() => {
                const originalText = copyBtn.textContent;
                copyBtn.textContent = 'Copied!';
                copyBtn.classList.add('copied');
                setTimeout(() => {
                    copyBtn.textContent = originalText;
                    copyBtn.classList.remove('copied');
                }, 2000);
            });
        });
    </script>
</body>
</html>