<script> // ---------- DEFAULT FONT PLAYLIST ---------- let defaultFonts = ["Roboto", "Open Sans", "Playfair Display", "Fira Code", "Pacifico", "Montserrat"]; let playlist = [...defaultFonts]; let currentIndex = 0; let intervalId = null; let isPlaying = false;

userMessageTextarea.addEventListener('input', updateTextContent); prevBtn.addEventListener('click', prevFont); nextBtn.addEventListener('click', nextFont); playBtn.addEventListener('click', () => if (playlist.length) startAutoRotate(); else alert("Add fonts to playlist first"); ); pauseBtn.addEventListener('click', stopAutoRotate); addFontBtn.addEventListener('click', addFont); exportBtn.addEventListener('click', exportPlaylist); importBtn.addEventListener('click', () => importFileInput.click()); importFileInput.addEventListener('change', (e) => if (e.target.files.length) importPlaylist(e.target.files[0]); importFileInput.value = ''; ); darkModeBtn.addEventListener('click', toggleDarkMode); // Stop rotation when page visibility or before unload (clean) window.addEventListener('beforeunload', () => if(intervalId) clearInterval(intervalId); );

function importPlaylist(file) const reader = new FileReader(); reader.onload = (e) => try const json = JSON.parse(e.target.result); if (json.fonts && Array.isArray(json.fonts) && json.fonts.length) playlist = json.fonts; currentIndex = 0; if (json.savedText !== undefined) userMessageTextarea.value = json.savedText; renderPlaylistUI(); updateTextContent(); updateDisplay(); stopAutoRotate(); else alert("Invalid playlist format. Need fonts: [...] "); catch(err) alert("Error parsing file"); ; reader.readAsText(file);

function prevFont() if (!playlist.length) return; currentIndex = (currentIndex - 1 + playlist.length) % playlist.length; updateDisplay(); if (isPlaying) stopAutoRotate(); startAutoRotate(); else updateDisplay();

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