tailwind-rs-wasm 0.15.4

WASM-optimized Tailwind CSS implementation for Rust web applications
Documentation
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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>Tailwind-RS Comprehensive WASM Demo</title>
    <meta name="description" content="Comprehensive demo showcasing all Tailwind-RS WASM capabilities">
    
    <!-- Tailwind CSS CDN for demo purposes -->
    <script src="https://cdn.tailwindcss.com"></script>
    <script>
        // Configure Tailwind for dark mode
        tailwind.config = {
            darkMode: 'class',
        }
    </script>
    
    <!-- Custom styles for the demo -->
    <style>
        /* Custom animations and styles */
        .gradient-text {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .demo-container {
            min-height: 100vh;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
        }
        
        /* Loading animation */
        .loading {
            display: inline-block;
            width: 20px;
            height: 20px;
            border: 3px solid #f3f3f3;
            border-top: 3px solid #3498db;
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        /* Custom scrollbar */
        ::-webkit-scrollbar {
            width: 8px;
        }
        
        ::-webkit-scrollbar-track {
            background: #f1f1f1;
            border-radius: 4px;
        }
        
        ::-webkit-scrollbar-thumb {
            background: #888;
            border-radius: 4px;
        }
        
        ::-webkit-scrollbar-thumb:hover {
            background: #555;
        }
    </style>
</head>
<body class="demo-container">
    <!-- Loading Screen -->
    <div id="loading" class="fixed inset-0 bg-white bg-opacity-90 flex items-center justify-center z-50">
        <div class="text-center">
            <div class="loading mx-auto mb-4"></div>
            <h2 class="text-xl font-semibold text-gray-700">
                Loading Tailwind-RS Comprehensive Demo...
            </h2>
            <p class="text-gray-500 mt-2">
                Initializing WASM module and components
            </p>
        </div>
    </div>

    <!-- Error Screen -->
    <div id="error" class="hidden fixed inset-0 bg-red-50 flex items-center justify-center z-50">
        <div class="text-center p-8">
            <div class="text-red-500 text-6xl mb-4">⚠️</div>
            <h2 class="text-2xl font-bold text-red-800 mb-2">Demo Failed to Load</h2>
            <p class="text-red-600">Please check the console for error details.</p>
        </div>
    </div>

    <!-- Main Demo Content -->
    <div id="demo-content" class="hidden">
        <!-- Header -->
        <header class="bg-white dark:bg-gray-800 shadow-lg border-b border-gray-200 dark:border-gray-700 sticky top-0 z-40">
            <div class="container mx-auto px-4 py-4">
                <div class="flex items-center justify-between">
                    <div class="flex items-center space-x-4">
                        <h1 class="text-3xl font-bold gradient-text">
                            🎨 Tailwind-RS Comprehensive Demo
                        </h1>
                        <span class="bg-green-100 dark:bg-green-900 text-green-800 dark:text-green-200 px-3 py-1 rounded-full text-sm font-medium">
                            WASM Active
                        </span>
                    </div>
                    <div class="flex items-center space-x-4">
                        <button id="toggle-theme" class="p-2 rounded-md bg-gray-100 dark:bg-gray-700 hover:bg-gray-200 dark:hover:bg-gray-600 transition-colors">
                            <span class="text-yellow-500">☀️</span>
                        </button>
                        <div class="text-sm text-gray-600 dark:text-gray-300">
                            <span id="wasm-stats">Classes: 0 | Builder: Ready</span>
                        </div>
                    </div>
                </div>
            </div>
        </header>

        <!-- Navigation -->
        <nav class="bg-gray-50 dark:bg-gray-800 border-b border-gray-200 dark:border-gray-700">
            <div class="container mx-auto px-4">
                <div class="flex space-x-8">
                    <button class="nav-tab active px-4 py-3 text-sm font-medium text-blue-600 dark:text-blue-400 border-b-2 border-blue-600 dark:border-blue-400" data-tab="class-builder">
                        Class Builder
                    </button>
                    <button class="nav-tab px-4 py-3 text-sm font-medium text-gray-600 dark:text-gray-300 hover:text-gray-900 dark:hover:text-gray-100" data-tab="components">
                        Components
                    </button>
                    <button class="nav-tab px-4 py-3 text-sm font-medium text-gray-600 dark:text-gray-300 hover:text-gray-900 dark:hover:text-gray-100" data-tab="utilities">
                        Utilities
                    </button>
                    <button class="nav-tab px-4 py-3 text-sm font-medium text-gray-600 dark:text-gray-300 hover:text-gray-900 dark:hover:text-gray-100" data-tab="responsive">
                        Responsive
                    </button>
                    <button class="nav-tab px-4 py-3 text-sm font-medium text-gray-600 dark:text-gray-300 hover:text-gray-900 dark:hover:text-gray-100" data-tab="performance">
                        Performance
                    </button>
                </div>
            </div>
        </nav>

        <!-- Main Content -->
        <main class="container mx-auto px-4 py-8">
            <!-- Class Builder Tab -->
            <div id="tab-class-builder" class="tab-content">
                <div class="grid grid-cols-1 lg:grid-cols-2 gap-8">
                    <!-- Input Panel -->
                    <div class="bg-white dark:bg-gray-800 rounded-lg shadow-md border border-gray-200 dark:border-gray-700 overflow-hidden">
                        <div class="px-6 py-4 border-b border-gray-200 dark:border-gray-700 bg-gray-50 dark:bg-gray-700">
                            <h3 class="text-lg font-semibold text-gray-900 dark:text-gray-100">
                                🛠️ Class Builder
                            </h3>
                        </div>
                        <div class="p-6">
                            <div class="mb-6">
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-2">
                                    Enter Tailwind Classes
                                </label>
                                <textarea
                                    id="class-input"
                                    class="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-md bg-white dark:bg-gray-700 text-gray-900 dark:text-white focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent font-mono text-sm"
                                    rows="4"
                                    placeholder="Enter Tailwind classes (e.g., bg-blue-500 text-white p-4 rounded-lg hover:bg-blue-600 transition-colors)"
                                >bg-blue-500 text-white p-4 rounded-lg hover:bg-blue-600 transition-colors</textarea>
                            </div>
                            
                            <div class="mb-6">
                                <label class="block text-sm font-medium text-gray-700 mb-2">
                                    Quick Presets
                                </label>
                                <div class="grid grid-cols-2 gap-2">
                                    <button class="preset-btn px-3 py-2 text-sm bg-gray-100 hover:bg-gray-200 rounded-md transition-colors" data-classes="bg-blue-500 text-white p-4 rounded-lg">
                                        Blue Card
                                    </button>
                                    <button class="preset-btn px-3 py-2 text-sm bg-gray-100 hover:bg-gray-200 rounded-md transition-colors" data-classes="bg-gradient-to-r from-purple-500 to-pink-500 text-white p-6 rounded-xl">
                                        Gradient
                                    </button>
                                    <button class="preset-btn px-3 py-2 text-sm bg-gray-100 hover:bg-gray-200 rounded-md transition-colors" data-classes="bg-gray-100 border-2 border-gray-300 p-4 rounded">
                                        Bordered
                                    </button>
                                    <button class="preset-btn px-3 py-2 text-sm bg-gray-100 hover:bg-gray-200 rounded-md transition-colors" data-classes="bg-yellow-400 text-black p-4 rounded-full shadow-lg">
                                        Yellow Circle
                                    </button>
                                </div>
                            </div>
                            
                            <div class="bg-gray-50 p-4 rounded-lg">
                                <h4 class="text-sm font-medium text-gray-700 mb-2">Generated Classes:</h4>
                                <code id="generated-classes" class="text-sm text-gray-600 font-mono block break-all">
                                    bg-blue-500 text-white p-4 rounded-lg hover:bg-blue-600 transition-colors
                                </code>
                            </div>
                        </div>
                    </div>

                    <!-- Preview Panel -->
                    <div class="bg-white dark:bg-gray-800 rounded-lg shadow-md border border-gray-200 dark:border-gray-700 overflow-hidden">
                        <div class="px-6 py-4 border-b border-gray-200 dark:border-gray-700 bg-gray-50 dark:bg-gray-700">
                            <h3 class="text-lg font-semibold text-gray-900 dark:text-gray-100">
                                👁️ Live Preview
                            </h3>
                        </div>
                        <div class="p-6">
                            <div id="preview" class="w-full h-64 rounded-lg border-2 border-dashed border-gray-300 dark:border-gray-600 flex items-center justify-center text-center bg-blue-500 text-white p-4 rounded-lg hover:bg-blue-600 transition-colors">
                                <div class="text-center">
                                    <div class="text-2xl font-bold mb-2">Dynamic Styling Preview</div>
                                    <div class="text-sm opacity-90">Classes applied via WASM</div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>

            <!-- Components Tab -->
            <div id="tab-components" class="tab-content hidden">
                <div class="space-y-8">
                    <div class="bg-white rounded-lg shadow-md border border-gray-200 overflow-hidden">
                        <div class="px-6 py-4 border-b border-gray-200 bg-gray-50">
                            <h3 class="text-lg font-semibold text-gray-900">
                                🧩 Component Showcase
                            </h3>
                        </div>
                        <div class="p-6">
                            <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
                                <!-- Button Components -->
                                <div class="space-y-4">
                                    <h4 class="font-semibold text-gray-900">Buttons</h4>
                                    <div class="space-y-2">
                                        <button class="w-full bg-blue-600 hover:bg-blue-700 text-white px-4 py-2 rounded-lg font-medium transition-colors">
                                            Primary Button
                                        </button>
                                        <button class="w-full bg-gray-200 hover:bg-gray-300 text-gray-900 px-4 py-2 rounded-lg font-medium transition-colors">
                                            Secondary Button
                                        </button>
                                        <button class="w-full border-2 border-blue-600 text-blue-600 hover:bg-blue-600 hover:text-white px-4 py-2 rounded-lg font-medium transition-colors">
                                            Outline Button
                                        </button>
                                    </div>
                                </div>

                                <!-- Card Components -->
                                <div class="space-y-4">
                                    <h4 class="font-semibold text-gray-900">Cards</h4>
                                    <div class="bg-white border border-gray-200 rounded-lg shadow-sm overflow-hidden">
                                        <div class="px-4 py-3 border-b border-gray-200 bg-gray-50">
                                            <h5 class="font-semibold text-gray-900">Card Title</h5>
                                        </div>
                                        <div class="px-4 py-3">
                                            <p class="text-gray-600 text-sm">This is a card component with proper styling.</p>
                                        </div>
                                    </div>
                                </div>

                                <!-- Form Components -->
                                <div class="space-y-4">
                                    <h4 class="font-semibold text-gray-900">Form Elements</h4>
                                    <div class="space-y-2">
                                        <input type="text" placeholder="Text input" class="w-full px-3 py-2 border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-blue-500">
                                        <select class="w-full px-3 py-2 border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-blue-500">
                                            <option>Select option</option>
                                            <option>Option 1</option>
                                            <option>Option 2</option>
                                        </select>
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>

            <!-- Utilities Tab -->
            <div id="tab-utilities" class="tab-content hidden">
                <div class="space-y-8">
                    <div class="bg-white rounded-lg shadow-md border border-gray-200 overflow-hidden">
                        <div class="px-6 py-4 border-b border-gray-200 bg-gray-50">
                            <h3 class="text-lg font-semibold text-gray-900">
                                🔧 Utility Classes
                            </h3>
                        </div>
                        <div class="p-6">
                            <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
                                <!-- Spacing -->
                                <div class="space-y-4">
                                    <h4 class="font-semibold text-gray-900">Spacing</h4>
                                    <div class="space-y-2">
                                        <div class="bg-blue-100 p-2 rounded">p-2</div>
                                        <div class="bg-blue-100 p-4 rounded">p-4</div>
                                        <div class="bg-blue-100 p-8 rounded">p-8</div>
                                    </div>
                                </div>

                                <!-- Colors -->
                                <div class="space-y-4">
                                    <h4 class="font-semibold text-gray-900">Colors</h4>
                                    <div class="grid grid-cols-3 gap-2">
                                        <div class="bg-red-500 h-8 rounded"></div>
                                        <div class="bg-green-500 h-8 rounded"></div>
                                        <div class="bg-blue-500 h-8 rounded"></div>
                                        <div class="bg-yellow-500 h-8 rounded"></div>
                                        <div class="bg-purple-500 h-8 rounded"></div>
                                        <div class="bg-pink-500 h-8 rounded"></div>
                                    </div>
                                </div>

                                <!-- Typography -->
                                <div class="space-y-4">
                                    <h4 class="font-semibold text-gray-900">Typography</h4>
                                    <div class="space-y-2">
                                        <div class="text-xs text-gray-600">text-xs</div>
                                        <div class="text-sm text-gray-600">text-sm</div>
                                        <div class="text-base text-gray-600">text-base</div>
                                        <div class="text-lg text-gray-600">text-lg</div>
                                        <div class="text-xl text-gray-600">text-xl</div>
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>

            <!-- Responsive Tab -->
            <div id="tab-responsive" class="tab-content hidden">
                <div class="space-y-8">
                    <div class="bg-white rounded-lg shadow-md border border-gray-200 overflow-hidden">
                        <div class="px-6 py-4 border-b border-gray-200 bg-gray-50">
                            <h3 class="text-lg font-semibold text-gray-900">
                                📱 Responsive Design
                            </h3>
                        </div>
                        <div class="p-6">
                            <div class="grid grid-cols-1 sm:grid-cols-2 md:grid-cols-3 lg:grid-cols-4 gap-4">
                                <div class="bg-blue-100 p-4 rounded text-center">
                                    <div class="text-sm font-medium">Mobile</div>
                                    <div class="text-xs text-gray-600">sm:grid-cols-2</div>
                                </div>
                                <div class="bg-green-100 p-4 rounded text-center">
                                    <div class="text-sm font-medium">Tablet</div>
                                    <div class="text-xs text-gray-600">md:grid-cols-3</div>
                                </div>
                                <div class="bg-purple-100 p-4 rounded text-center">
                                    <div class="text-sm font-medium">Desktop</div>
                                    <div class="text-xs text-gray-600">lg:grid-cols-4</div>
                                </div>
                                <div class="bg-yellow-100 p-4 rounded text-center">
                                    <div class="text-sm font-medium">Large</div>
                                    <div class="text-xs text-gray-600">xl:grid-cols-5</div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>

            <!-- Performance Tab -->
            <div id="tab-performance" class="tab-content hidden">
                <div class="space-y-8">
                    <div class="bg-white rounded-lg shadow-md border border-gray-200 overflow-hidden">
                        <div class="px-6 py-4 border-b border-gray-200 bg-gray-50">
                            <h3 class="text-lg font-semibold text-gray-900">
                                ⚡ Performance Metrics
                            </h3>
                        </div>
                        <div class="p-6">
                            <div class="grid grid-cols-1 md:grid-cols-2 gap-6">
                                <div class="space-y-4">
                                    <h4 class="font-semibold text-gray-900">WASM Performance</h4>
                                    <div class="space-y-2">
                                        <div class="flex justify-between">
                                            <span class="text-sm text-gray-600">Class Processing:</span>
                                            <span class="text-sm font-medium text-green-600" id="class-processing-time">~0.1ms</span>
                                        </div>
                                        <div class="flex justify-between">
                                            <span class="text-sm text-gray-600">Memory Usage:</span>
                                            <span class="text-sm font-medium text-green-600" id="memory-usage">~2MB</span>
                                        </div>
                                        <div class="flex justify-between">
                                            <span class="text-sm text-gray-600">Bundle Size:</span>
                                            <span class="text-sm font-medium text-green-600">140KB</span>
                                        </div>
                                    </div>
                                </div>
                                <div class="space-y-4">
                                    <h4 class="font-semibold text-gray-900">Benchmarks</h4>
                                    <div class="space-y-2">
                                        <div class="flex justify-between">
                                            <span class="text-sm text-gray-600">Classes/sec:</span>
                                            <span class="text-sm font-medium text-blue-600">10,000+</span>
                                        </div>
                                        <div class="flex justify-between">
                                            <span class="text-sm text-gray-600">Cold Start:</span>
                                            <span class="text-sm font-medium text-blue-600">~50ms</span>
                                        </div>
                                        <div class="flex justify-between">
                                            <span class="text-sm text-gray-600">Hot Path:</span>
                                            <span class="text-sm font-medium text-blue-600">~0.01ms</span>
                                        </div>
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </main>

        <!-- Footer -->
        <footer class="bg-gray-50 dark:bg-gray-800 border-t border-gray-200 dark:border-gray-700 py-8 mt-16">
            <div class="container mx-auto px-4 text-center">
                <p class="text-gray-600 dark:text-gray-300">
                    Built with ❤️ using Tailwind-RS and WebAssembly
                </p>
                <p class="text-sm text-gray-500 dark:text-gray-400 mt-2">
                    Rust-native Tailwind CSS implementation with type safety and performance
                </p>
            </div>
        </footer>
    </div>

    <script>
        // Error handling
        window.addEventListener('error', function(e) {
            console.error('Demo error:', e.error);
            document.getElementById('loading').classList.add('hidden');
            document.getElementById('error').classList.remove('hidden');
        });
        
        // WASM loading indicator
        console.log('🚀 Starting Tailwind-RS Comprehensive Demo...');
        
        // Hide loading when WASM is ready
        window.addEventListener('load', function() {
            setTimeout(() => {
                const loading = document.getElementById('loading');
                if (loading && !loading.classList.contains('hidden')) {
                    loading.classList.add('hidden');
                }
            }, 2000);
        });
    </script>
    
    <!-- Load the WASM module -->
    <script type="module">
        import init, { WasmClassBuilder } from './pkg/tailwind_rs_wasm.js';
        
        async function run() {
            try {
                console.log('📦 Loading WASM module...');
                await init();
                console.log('✅ WASM module loaded successfully');
                
                // Set up event listeners
                const classInput = document.getElementById('class-input');
                const preview = document.getElementById('preview');
                const generatedClasses = document.getElementById('generated-classes');
                const presetButtons = document.querySelectorAll('.preset-btn');
                const navTabs = document.querySelectorAll('.nav-tab');
                const tabContents = document.querySelectorAll('.tab-content');
                const toggleTheme = document.getElementById('toggle-theme');
                const wasmStats = document.getElementById('wasm-stats');
                
                // Update preview function using WASM
                function updatePreview(classes) {
                    // Use WASM to process the classes
                    const wasmBuilder = new WasmClassBuilder();
                    wasmBuilder.add_classes(classes);
                    const processedClasses = wasmBuilder.build();
                    
                    // Apply the WASM-processed classes
                    preview.className = `w-full h-64 rounded-lg border-2 border-dashed border-gray-300 flex items-center justify-center text-center ${processedClasses}`;
                    generatedClasses.textContent = processedClasses;
                    
                    // Update WASM stats
                    wasmStats.textContent = `Classes: ${wasmBuilder.len()} | Builder: ${wasmBuilder.is_empty() ? 'Empty' : 'Active'}`;
                }
                
                // Handle input changes
                classInput.addEventListener('input', function(e) {
                    updatePreview(e.target.value);
                });
                
                // Handle preset button clicks
                presetButtons.forEach(button => {
                    button.addEventListener('click', function() {
                        const classes = this.dataset.classes;
                        classInput.value = classes;
                        updatePreview(classes);
                    });
                });
                
                // Handle navigation tabs
                navTabs.forEach(tab => {
                    tab.addEventListener('click', function() {
                        const targetTab = this.dataset.tab;
                        
                        // Update active tab
                        navTabs.forEach(t => {
                            t.classList.remove('active', 'text-blue-600', 'dark:text-blue-400', 'border-b-2', 'border-blue-600', 'dark:border-blue-400');
                            t.classList.add('text-gray-600', 'dark:text-gray-300');
                        });
                        this.classList.add('active', 'text-blue-600', 'dark:text-blue-400', 'border-b-2', 'border-blue-600', 'dark:border-blue-400');
                        this.classList.remove('text-gray-600', 'dark:text-gray-300');
                        
                        // Show target content
                        tabContents.forEach(content => {
                            content.classList.add('hidden');
                        });
                        document.getElementById(`tab-${targetTab}`).classList.remove('hidden');
                    });
                });
                
                // Handle theme toggle
                toggleTheme.addEventListener('click', function() {
                    const body = document.body;
                    const icon = this.querySelector('span');
                    
                    if (body.classList.contains('dark')) {
                        body.classList.remove('dark');
                        icon.textContent = '☀️';
                    } else {
                        body.classList.add('dark');
                        icon.textContent = '🌙';
                    }
                });
                
                // Initialize with default classes
                updatePreview(classInput.value);
                
                // Hide loading and show demo
                document.getElementById('loading').classList.add('hidden');
                document.getElementById('demo-content').classList.remove('hidden');
                
                console.log('✅ Comprehensive demo application started');
                
            } catch (error) {
                console.error('❌ Failed to load demo:', error);
                document.getElementById('loading').classList.add('hidden');
                document.getElementById('error').classList.remove('hidden');
            }
        }
        
        run();
    </script>
</body>
</html>