e títulos. */ function frasesDaPagina() { const main = document.querySelector("main"); if (!main) return []; const blocoDe = (el) => { let n = el; while (n && n !== main) { const d = getComputedStyle(n).display; if (d !== "inline" && d !== "inline-block" && d !== "contents") return n; n = n.parentElement; } return main; }; const porBloco = new Map(); const ordem = []; const w = document.createTreeWalker(main, NodeFilter.SHOW_TEXT); while (w.nextNode()) { const no = w.currentNode; const t = (no.textContent || "").replace(/\s+/g, " ").trim(); if (!t) continue; const el = no.parentElement; if (!el || el.closest(".acess-bar")) continue; if (el.tagName === "SCRIPT" || el.tagName === "STYLE" || el.tagName === "NOSCRIPT") continue; if (el.getClientRects().length === 0) continue; if (el.getAttribute && el.getAttribute("aria-hidden") === "true") continue; const b = blocoDe(el); if (!porBloco.has(b)) { porBloco.set(b, []); ordem.push(b); } porBloco.get(b).push(t); } const frases = []; for (const b of ordem) { const texto = porBloco.get(b).join(" ").replace(/\s+/g, " ").trim(); if (texto.length < 3) continue; const comPonto = /[.!?…:]$/.test(texto) ? texto : texto + "."; for (const f of (comPonto.match(/[^.!?…]+[.!?…]*/g) || [])) { const t = f.trim(); if (t.length > 1 && !frases.includes(t)) frases.push(t); } } return frases.slice(0, 90); } function AcessibilidadeBar() { const [grande, setGrande] = useStateAC(lerPreferenciaLetra); const [falando, setFalando] = useStateAC(false); const [temVoz, setTemVoz] = useStateAC(false); useEffectAC(() => { if (!("speechSynthesis" in window)) return; const checar = () => setTemVoz(window.speechSynthesis.getVoices().length > 0); checar(); window.speechSynthesis.addEventListener("voiceschanged", checar); return () => { window.speechSynthesis.removeEventListener("voiceschanged", checar); window.speechSynthesis.cancel(); }; }, []); const alternarLetra = () => { setGrande(v => { const novo = !v; try { localStorage.setItem(LS_LETRA, novo ? "1" : "0"); } catch (e) {} aplicarLetra(novo); return novo; }); }; const falar = () => { const ss = window.speechSynthesis; if (falando) { ss.cancel(); setFalando(false); return; } const frases = (window.ROTEIRO_FALA && window.ROTEIRO_FALA.length) ? window.ROTEIRO_FALA : frasesDaPagina(); if (!frases.length) return; ss.cancel(); const vozes = ss.getVoices(); const pt = vozes.find(v => /^pt[-_]BR/i.test(v.lang)) || vozes.find(v => /^pt/i.test(v.lang)); frases.forEach((frase, i) => { const u = new SpeechSynthesisUtterance(frase); u.lang = "pt-BR"; if (pt) u.voice = pt; u.rate = 0.92; if (i === frases.length - 1) u.onend = () => setFalando(false); u.onerror = () => setFalando(false); ss.speak(u); }); setFalando(true); }; return (