Load More Button

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Load More Button</title>
    <style>
        /*
         Component: Load More Button
         Description: A button for asynchronously loading more content items into a list.
        */

:root {
            --load-more-bg: #17a2b8;
            --load-more-text: #ffffff;
            --load-more-bg-hover: #138496;
            --load-more-focus-outline: #17a2b8;
            --list-item-bg: #ffffff;
            --list-item-border: #dee2e6;
        }

.load-more-demo-1 {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            max-width: 600px;
            margin: 2rem auto;
            padding: 2rem;
            background-color: #f8f9fa;
            border-radius: 8px;
        }

.content-list-1 {
            list-style-type: none;
            padding: 0;
            margin: 0 0 2rem 0;
        }

.content-list-1 li {
            background-color: var(--list-item-bg);
            border: 1px solid var(--list-item-border);
            border-radius: 6px;
            padding: 1rem 1.5rem;
            margin-bottom: 0.75rem;
            opacity: 0;
            transform: translateY(10px);
            animation: fadeIn 0.5s ease forwards;
        }
        
        @keyframes fadeIn {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

.load-more-btn-1 {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 100%;
            padding: 0.9rem 1.5rem;
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--load-more-text);
            background-color: var(--load-more-bg);
            border: none;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.2s ease;
        }

.load-more-btn-1:hover {
            background-color: var(--load-more-bg-hover);
        }

.load-more-btn-1:focus-visible {
            outline: 3px solid var(--load-more-focus-outline);
            outline-offset: 2px;
        }

/* --- Loading Spinner --- */
        .loader {
            display: none;
            width: 24px;
            height: 24px;
            border: 3px solid rgba(255, 255, 255, 0.3);
            border-top-color: var(--load-more-text);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

.load-more-btn-1.is-loading .btn-text {
            display: none;
        }

.load-more-btn-1.is-loading .loader {
            display: block;
        }
        
        /* --- Disabled State --- */
        .load-more-btn-1:disabled {
            background-color: #6c757d;
            cursor: not-allowed;
            opacity: 0.65;
        }
        .load-more-btn-1:disabled .loader {
            display: none;
        }
        .load-more-btn-1:disabled .btn-text {
            display: inline-block;
        }
        
        @keyframes spin {
            to {
                transform: rotate(360deg);
            }
        }

/* Announce content updates for screen readers */
        .visually-hidden {
            border: 0;
            clip: rect(0 0 0 0);
            height: 1px;
            margin: -1px;
            overflow: hidden;
            padding: 0;
            position: absolute;
            white-space: nowrap;
            width: 1px;
        }
    </style>
</head>
<body>

<div class="load-more-demo-1">
        <h2>Latest Articles</h2>
        <ul class="content-list-1" id="contentList1">
            <li>Article by Persephone Plum</li>
            <li>Article by Atticus Finchley</li>
            <li>Article by Esmeralda Quill</li>
        </ul>
        
        <button type="button" class="load-more-btn-1" id="loadMoreBtn1">
            <span class="btn-text">Load More</span>
            <div class="loader"></div>
        </button>
        <div id="loadStatus1" class="visually-hidden" aria-live="polite"></div>
    </div>
    
    <script>
        document.addEventListener('DOMContentLoaded', () => {
            const loadMoreBtn = document.getElementById('loadMoreBtn1');
            const contentList = document.getElementById('contentList1');
            const loadStatus = document.getElementById('loadStatus1');

let clickCount = 0;
            const newContent = [
                ['Barnaby Wisp', 'Cornelius Gable'],
                ['Ophelia Vex', 'Horatio Fiddle'],
                ['Genevieve Croft', 'Silas Rex']
            ];

loadMoreBtn.addEventListener('click', () => {
                loadMoreBtn.classList.add('is-loading');
                loadMoreBtn.disabled = true;

setTimeout(() => {
                    loadMoreBtn.classList.remove('is-loading');

if (clickCount < newContent.length) {
                        const itemsToLoad = newContent[clickCount];
                        itemsToLoad.forEach(itemText => {
                            const newItem = document.createElement('li');
                            newItem.textContent = `Article by ${itemText}`;
                            contentList.appendChild(newItem);
                        });
                        
                        loadStatus.textContent = `${itemsToLoad.length} new articles have been loaded.`;
                        loadMoreBtn.disabled = false;
                        clickCount++;

if (clickCount >= newContent.length) {
                             setTimeout(() => {
                                loadMoreBtn.querySelector('.btn-text').textContent = 'No More Articles';
                                loadMoreBtn.disabled = true;
                             }, 100);
                        }

}
                }, 1500); // Simulate network request delay
            });
        });
    </script>

</body>
</html>