Efeito de máscara de texto do boletim da turma
No cenário de zine da sala de aula, conclua um efeito de máscara de texto: com conteúdo real, controles acionáveis, feedback claro de estado e layout responsivo a diferentes tamanhos.
É possível editar, executar e salvar este exemplo após ativar JavaScript. O código-fonte fixo é o seguinte:
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<header class="mast"><div><span class="eyebrow">editorial / efeito de máscara de texto / INTERMEDIATE</span><h1>Efeito de máscara de texto do boletim da turma</h1><p class="intro">No cenário de zine da sala de aula, conclua um efeito de máscara de texto: com conteúdo real, controles acionáveis, feedback claro de estado e layout responsivo a diferentes tamanhos.</p></div><span class="scenario">Revistinha da turma</span></header>
<div class="composition-split"><aside class="split-note"><b>CASE 02</b><span>Domine a estrutura semântica, a composição responsiva, a operação pelo teclado e a sincronização de estados do efeito de máscara de texto.</span></aside><section class="demo" aria-label="Área interativa do efeito de máscara de texto da revistinha da sala de aula"><section id="evidenceShell" class="evidence-shell" data-board-mode="scan"><header class="evidence-head"><div><span class="eyebrow">Revista da turma / EVIDENCE BOARD</span><h2>Painel de observação do efeito de máscara de texto</h2><p>Coloque o caso principal no quadro de evidências, usando cartões de observação separados, registros e alternância de padrões para registrar o resultado atual.</p></div><div class="evidence-tools"><div class="row"><button class="action primary" type="button" data-board-mode="scan">Escanear</button><button class="action" type="button" data-board-mode="proof">Verificação</button><button class="action" type="button" data-board-mode="handoff">Transferência</button></div><output id="evidenceStatus">Aguardando amostragem</output></div></header><div class="evidence-body"><section class="evidence-stage"><div class="evidence-ribbon"><button type="button" data-evidence-card="0" aria-pressed="true"><span>01</span><strong>Plano de zine da aula</strong><small>Verifique se a mudança de estado está visível</small></button><button type="button" data-evidence-card="1" aria-pressed="false"><span>02</span><strong>Inspiração do zine da sala de aula</strong><small>Confirmar que as entradas por teclado e por clique são consistentes</small></button><button type="button" data-evidence-card="2" aria-pressed="false"><span>03</span><strong>Registro do zine da sala de aula</strong><small>Observe se o layout recua em telas estreitas</small></button><button type="button" data-evidence-card="3" aria-pressed="false"><span>04</span><strong>Colaboração do jornalzinho da turma</strong><small>Registre a conclusão da revisão atual</small></button></div><div id="evidenceCoreShell" class="evidence-core-shell"><div class="workflow-guide"><nav class="guide-rail" aria-label="Guia da revista de sala de aula"><span class="eyebrow">Fanzine de sala de aula GUIDE</span><ol><li data-workflow-guide-step="0" aria-current="step"><b>1</b><span>Ajuste de layout do zine da turma</span></li><li data-workflow-guide-step="1"><b>2</b><span>Destaque do zine da turma</span></li><li data-workflow-guide-step="2"><b>3</b><span>Leitura do fanzine da sala de aula concluída</span></li></ol><div class="guide-actions"><button id="workflowGuideBack" class="action" type="button" disabled>Etapa anterior</button><button id="workflowGuideNext" class="action primary" type="button">Concluir esta etapa</button></div><div id="workflowGuideProgress" role="progressbar" aria-label="Conclusão do mini-jornal de turma" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0"><i></i></div></nav><section id="workflowCore" class="workflow-core guide-core" data-guide-step="0" aria-describedby="workflowGuideInstruction"><p id="workflowGuideInstruction">Conclua, no exemplo principal, as ações relacionadas a “ajuste de layout do livreto da classe”.</p><!-- 11DZ_CORE_START:typography-text-text-mask --><div class="text-mask-lab"><header class="mask-controls panel"><div><span class="eyebrow">TEXT MASK</span><h2>Efeito de máscara de texto</h2></div><label>Ângulo do degradê <input id="maskAngle" type="range" min="0" max="360" value="125" data-core-bridge="typography-text-text-mask"><output id="maskAngleValue">125°</output></label><div class="row"><button id="maskPalette" class="action" type="button">Alternar espectro de cores</button><button id="maskPause" class="action" type="button" aria-pressed="false">Pausar fluxo</button></div></header><section class="mask-stage" aria-label="Pré-visualização da máscara de texto do livreto da turma"><p>Revistinha da turma</p><h3 id="maskedHeading">Deixe a cor fluir apenas dentro das letras</h3><small>O texto real permanece no documento, podendo ser selecionado, ampliado e lido por tecnologias assistivas.</small></section></div><!-- 11DZ_CORE_END --></section><aside class="guide-evidence"><details id="workflowGuideDetails"><summary>Ver requisitos de aceitação</summary><ul><li>A diagramação da zine da sala de aula precisa de uma mudança de estado visível</li><li>O foco do zine da sala de aula enfatiza a necessidade de uma mudança de estado visível em uma única etapa</li><li>A leitura do zine da sala de aula requer uma mudança de estado visível</li></ul></details><form id="workflowGuideEvidenceForm"><label>Evidência desta etapa<textarea id="workflowGuideEvidence" rows="3" placeholder="Registrar o estado observado"></textarea></label><input class="action" type="submit" value="Salvar evidência"></form><output id="workflowGuideSummary">0 / 3 passos concluídos</output></aside></div></div></section><aside class="evidence-rail"><label>Escala do canvas<input id="evidenceZoom" type="range" min="88" max="128" value="100"><output id="evidenceZoomValue">100%</output></label><label>Coleta atual<select id="evidenceStep"><option value="0">Plano de zine da aula</option><option value="1">Inspiração do zine da sala de aula</option><option value="2">Registro do zine da sala de aula</option><option value="3">Colaboração do jornalzinho da turma</option></select></label><ul id="evidenceChecklist" class="evidence-checklist"><li>Plano de zine da aula</li><li>Inspiração do zine da sala de aula</li><li>Registro do zine da sala de aula</li><li>Colaboração do jornalzinho da turma</li></ul><button id="evidenceCapture" class="action primary" type="button">Escrever evidências</button><ol id="evidenceLog" class="evidence-log"><li>Evidência ainda não registrada</li></ol></aside></div></section><p id="status" class="status" role="status" aria-live="polite"></p></section></div>
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const workflowGuideCore=document.querySelector('#workflowCore');const workflowGuideStages=["Ajuste de layout do zine da turma","Destaque do zine da turma","Leitura do fanzine da sala de aula concluída"];const workflowGuideState={step:0,completed:new Set(),evidence:new Map(),consumedVersion:0};function workflowGuideDrive(){const step=workflowGuideState.step;workflowGuideCore.dataset.guideStep=String(step);document.querySelector('#workflowGuideInstruction').textContent='Por favor, conclua no caso principal “'+workflowGuideStages[step]+'Ações relacionadas a ”.';document.querySelectorAll('[data-workflow-guide-step]').forEach((item,index)=>{item.classList.toggle('is-complete',workflowGuideState.completed.has(index));if(index===step)item.setAttribute('aria-current','step');else item.removeAttribute('aria-current');});document.querySelector('#workflowGuideBack').disabled=step===0;document.querySelector('#workflowGuideNext').textContent=step===workflowGuideStages.length-1?'Aplicativo de layout':'Concluir esta etapa';const percent=Math.round(workflowGuideState.completed.size/workflowGuideStages.length*100);const progress=document.querySelector('#workflowGuideProgress');progress.setAttribute('aria-valuenow',String(percent));progress.querySelector('i').style.width=percent+'%';document.querySelector('#workflowGuideSummary').textContent=workflowGuideState.completed.size+' / '+workflowGuideStages.length+' Etapa concluída · '+workflowBridgeSummary();announce('Etapa atual do Jornalzinho da sala de aula:'+workflowGuideStages[step]);}function workflowGuideAdvance(direction){if(direction>0){const bridge=workflowBridgeActivate();const version=Number(workflowGuideCore.dataset.workflowVersion||0);if(version<=workflowGuideState.consumedVersion){announce('Complete primeiro a mudança visível de estado do caso principal');return;}workflowGuideState.consumedVersion=version;workflowGuideState.completed.add(workflowGuideState.step);announce('Mudanças do caso principal registradas · '+bridge.summary);}workflowGuideState.step=Math.max(0,Math.min(workflowGuideStages.length-1,workflowGuideState.step+direction));workflowGuideDrive();}document.querySelector('#workflowGuideBack').addEventListener('click',()=>workflowGuideAdvance(-1));document.querySelector('#workflowGuideNext').addEventListener('click',()=>workflowGuideAdvance(1));document.querySelector('#workflowGuideEvidenceForm').addEventListener('submit',event=>{event.preventDefault();const version=Number(workflowGuideCore.dataset.workflowVersion||0);if(version<=workflowGuideState.consumedVersion){announce('Prova não salva: o caso principal ainda não tem novas alterações');return;}const text=document.querySelector('#workflowGuideEvidence').value.trim();workflowGuideState.evidence.set(workflowGuideState.step,text||'Estado de visibilidade verificado como concluído');workflowGuideState.completed.add(workflowGuideState.step);workflowGuideState.consumedVersion=version;workflowGuideDrive();announce('Evidência desta etapa salva · '+workflowBridgeSummary());});document.querySelector('#workflowGuideDetails').addEventListener('toggle',event=>announce(event.currentTarget.open?'Requisitos de aceitação expandidos':'Requisitos de aceitação recolhidos'));workflowGuideDrive();
workflowBridgeReset();
const evidenceShell=document.querySelector('#evidenceShell');const evidenceStatus=document.querySelector('#evidenceStatus');const evidenceZoom=document.querySelector('#evidenceZoom');const evidenceZoomValue=document.querySelector('#evidenceZoomValue');const evidenceStep=document.querySelector('#evidenceStep');const evidenceChecklistItems=[...document.querySelectorAll('#evidenceChecklist li')];const evidenceCards=[...document.querySelectorAll('[data-evidence-card]')];const evidenceLog=document.querySelector('#evidenceLog');const evidenceModeButtons=[...evidenceShell.querySelectorAll('button[data-board-mode]')];const evidenceNotes=["Plano de zine da aula","Inspiração do zine da sala de aula","Registro do zine da sala de aula","Colaboração do jornalzinho da turma"];const evidenceCore=document.querySelector('#workflowCore');let evidenceCaptures=0;function evidenceSetCard(index){evidenceCards.forEach((card,cardIndex)=>{const active=cardIndex===index;card.setAttribute('aria-pressed',String(active));});evidenceChecklistItems.forEach((item,itemIndex)=>{item.classList.toggle('is-active',itemIndex===index);item.classList.toggle('is-done',itemIndex<evidenceCaptures);});}function evidenceRender(reason){const version=evidenceCore?.dataset.workflowVersion||'0';const zoom=Number(evidenceZoom.value);const active=Math.min(evidenceNotes.length-1,Number(evidenceStep.value)||0);evidenceShell.style.setProperty('--evidence-zoom',String(zoom));evidenceZoomValue.textContent=zoom+'%';evidenceSetCard(active);evidenceStatus.textContent=reason+' · versão principal '+version;}evidenceModeButtons.forEach(button=>button.addEventListener('click',()=>{evidenceModeButtons.forEach(item=>item.classList.toggle('primary',item===button));evidenceShell.dataset.boardMode=button.dataset.boardMode;evidenceRender('Alterado para'+button.textContent);announce('padrão de evidência:'+button.textContent);}));evidenceCards.forEach((card,index)=>card.addEventListener('click',()=>{evidenceStep.value=String(index);evidenceRender('Cartão de observação alternado');announce('Cartão de observação:'+evidenceNotes[index]);}));evidenceZoom.addEventListener('input',()=>{evidenceRender('A escala da tela foi atualizada');announce('observação de escala '+evidenceZoom.value+'%');});evidenceStep.addEventListener('change',()=>{const index=Number(evidenceStep.value)||0;evidenceRender('Amostragem alternada');announce('Seleção atual:'+evidenceNotes[index]);});document.querySelector('#evidenceCapture').addEventListener('click',()=>{const index=Math.min(evidenceNotes.length-1,Number(evidenceStep.value)||0);const note=evidenceNotes[index];const version=evidenceCore?.dataset.workflowVersion||'0';evidenceCaptures+=1;const item=document.createElement('li');item.textContent='Evidência '+evidenceCaptures+' · '+note+' · versão principal '+version;const empty=evidenceLog.querySelector('li')?.textContent==='Evidência ainda não registrada';if(empty)evidenceLog.replaceChildren(item);else evidenceLog.prepend(item);while(evidenceLog.children.length>6)evidenceLog.lastElementChild.remove();evidenceRender('O registro foi escrito '+evidenceCaptures);announce('O registro foi escrito '+evidenceCaptures+' · '+note);});evidenceCore?.addEventListener('focusin',()=>evidenceRender('Caso principal em foco'));evidenceCore?.addEventListener('click',()=>evidenceRender('O caso principal sofre uma interação'));evidenceRender('Aguardando amostragem');
</script>
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