HTML Editor: Code, Preview, & Run

30 dogodrstone

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>HTML Code Editor & Transformer</title>
    <style>
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            margin: 0;
            display: flex;
            flex-direction: column;
            height: 100vh;
            background-color: #1e1e1e;
            color: #ffffff;
        }

header {
            padding: 1rem;
            background-color: #2d2d2d;
            border-bottom: 1px solid #333;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

.main-container {
            display: flex;
            flex: 1;
            overflow: hidden;
        }

.editor-section {
            flex: 1;
            display: flex;
            flex-direction: column;
            border-right: 1px solid #333;
            padding: 10px;
        }

.preview-section {
            flex: 1;
            background-color: white;
            display: flex;
            flex-direction: column;
        }

label {
            font-size: 0.8rem;
            margin-bottom: 5px;
            color: #aaa;
            text-transform: uppercase;
            font-weight: bold;
        }

textarea {
            width: 100%;
            background-color: #252526;
            color: #d4d4d4;
            border: 1px solid #3c3c3c;
            border-radius: 4px;
            padding: 10px;
            font-family: 'Courier New', Courier, monospace;
            resize: none;
            box-sizing: border-box;
        }

#codeInput {
            flex: 2;
            margin-bottom: 15px;
        }

#instructionInput {
            flex: 0 0 100px;
            border-color: #007acc;
        }

.button-group {
            margin-top: 10px;
            display: flex;
            gap: 10px;
        }

button {
            padding: 10px 20px;
            cursor: pointer;
            border: none;
            border-radius: 4px;
            font-weight: bold;
            transition: opacity 0.2s;
        }

#applyBtn {
            background-color: #007acc;
            color: white;
            flex: 2;
        }

#runBtn {
            background-color: #28a745;
            color: white;
            flex: 1;
        }

button:hover {
            opacity: 0.9;
        }

iframe {
            width: 100%;
            height: 100%;
            border: none;
            background-color: white;
        }

.status-bar {
            padding: 5px 10px;
            font-size: 12px;
            background: #007acc;
            color: white;
        }
    </style>
</head>
<body>

<header>
        <div style="font-size: 1.2rem; font-weight: bold;">HTML Editor</div>
        <div style="font-size: 0.8rem; color: #888;">Enter code and instructions below</div>
    </header>

<div class="main-container">
        
        <div class="editor-section">
            <label for="codeInput">HTML Code</label>
            <input id="codeInput" placeholder="Paste your HTML here..."<!DOCTYPE html>
<html>
<head>
    <style>
        h1 { color: steelblue; }
    </style>
</head>
<body>
    <h1>Hello World!</h1>
    <p>Try changing the text color or adding a button.</p>
</body>
</html>/>

<label for="instructionInput">What do you want to change?</label>
            <input id="instructionInput" placeholder="e.g., 'Change the background to dark mode' or 'Add a red navbar'"/>
            
            <div class="button-group">
                <button id="applyBtn">Apply Changes</button>
                <button id="runBtn">Run Preview</button>
            </div>
        </div>

<div class="preview-section">
            <iframe id="preview"></iframe>
        </div>
    </div>

<div class="status-bar" id="statusBar">Ready</div>

// Function to update the preview window
        function updatePreview() {
            const content = codeInput.value;
            const iframeDoc = preview.contentDocument || preview.contentWindow.document;
            iframeDoc.open();
            iframeDoc.write(content);
            iframeDoc.close();
            statusBar.innerText = "Preview Updated: " + new Date().toLocaleTimeString();
        }

// Logic for "Applying Changes" 
        // Note: In a real app, this would send code + instructions to an AI API.
        // Here, we simulate the process.
        applyBtn.addEventListener('click', () => {
            const instruction = instructionInput.value.trim();
            
            if (!instruction) {
                alert("Please enter what you want to change first!");
                return;
            }

statusBar.innerText = "Processing changes...";
            
            // Mocking a delay to simulate AI processing
            setTimeout(() => {
                // This is where you would integrate an AI call.
                // For this demo, we'll just log it and update the preview.
                console.log("Instruction received:", instruction);
                alert("Instruction received: '" + instruction + "'. \n\nIn a production app, this would connect to an AI (like GPT-4) to rewrite the code above. For now, I'll just refresh the preview.");
                
                updatePreview();
                statusBar.innerText = "Changes applied (Simulated)";
            }, 800);
        });

// Run button simply refreshes the preview
        runBtn.addEventListener('click', updatePreview);

// Initial preview load
        updatePreview();
    </script>
</body>
</html>

CSS

HTML Editor: Code, Preview, & Run

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