Stepper numérico do suporte de exibição de performances
Conclua o stepper numérico no contexto de um display de performances: com conteúdo real, controles interativos, feedback de estado claro 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">industrial / stepper numérico / INTERMEDIATE</span><h1>Stepper numérico do suporte de exibição de performances</h1><p class="intro">Conclua o stepper numérico no contexto de um display de performances: com conteúdo real, controles interativos, feedback de estado claro e layout responsivo a diferentes tamanhos.</p></div><span class="scenario">Expositor de apresentação</span></header>
<div class="composition-split"><aside class="split-note"><b>CASE 02</b><span>Domine a estrutura semântica, a composição responsiva, a operação por teclado e a sincronização de estado de um seletor numérico.</span></aside><section class="demo" aria-label="Área interativa do stepper numérico do display de performances"><section id="atlasShell" class="atlas-shell" data-atlas-mode="brief"><header class="atlas-head"><div><span class="eyebrow">Estrutura de exibição do espetáculo / ATLAS DOSSIER</span><h2>Mapa de amostras do stepper numérico</h2><p>Reenvolva o caso principal com uma página de amostra no estilo de atlas, separando o índice da amostra, a visualização de rastreamento, as anotações de passagem e os registros de campo.</p></div><div class="atlas-controls"><div class="atlas-modes"><button class="action primary" type="button" data-atlas-mode="brief">briefing</button><button class="action" type="button" data-atlas-mode="trace">Rastreamento</button><button class="action" type="button" data-atlas-mode="handoff">Transferência</button></div><output id="atlasState">Aguardando criação de amostra</output></div></header><div class="atlas-body"><aside class="atlas-index"><ol class="atlas-chapters"><li><button type="button" data-atlas-card="0" aria-pressed="true"><span>01</span><strong>Lembrete da estante de exibição do espetáculo</strong><small>Verifique se a mudança de estado está visível</small></button></li><li><button type="button" data-atlas-card="1" aria-pressed="false"><span>02</span><strong>Coleção do suporte de exibição de espetáculos</strong><small>Confirmar que as entradas por teclado e por clique são consistentes</small></button></li><li><button type="button" data-atlas-card="2" aria-pressed="false"><span>03</span><strong>Visão geral da estrutura de exibição do espetáculo</strong><small>Observe se o layout recua em telas estreitas</small></button></li><li><button type="button" data-atlas-card="3" aria-pressed="false"><span>04</span><strong>Plano da estante de apresentação</strong><small>Registre a conclusão da revisão atual</small></button></li></ol><label>Escala do layout<input id="atlasZoom" type="range" min="82" max="132" value="100"><output id="atlasZoomValue">100%</output></label><label>Foco de amostragem<select id="atlasFocus"><option value="0">Lembrete da estante de exibição do espetáculo</option><option value="1">Coleção do suporte de exibição de espetáculos</option><option value="2">Visão geral da estrutura de exibição do espetáculo</option><option value="3">Plano da estante de apresentação</option></select></label><button id="atlasCapture" class="action primary" type="button">Amostras coletadas</button><dl class="atlas-meta"><div><dt>Número de itens incluídos</dt><dd id="atlasCount">0</dd></div><div><dt>Foco atual</dt><dd id="atlasCurrent">Lembrete da estante de exibição do espetáculo</dd></div><div><dt>Modo de revisão</dt><dd id="atlasModeLabel">briefing</dd></div></dl></aside><section class="atlas-stage"><div class="atlas-summary"><article data-active="true"><span>Sample</span><strong>Lembrete da estante de exibição do espetáculo</strong><p>Verifique se a mudança de estado está visível</p></article><article><span>Trace</span><strong>Coleção do suporte de exibição de espetáculos</strong><p>Confirmar que as entradas por teclado e por clique são consistentes</p></article><article><span>Signal</span><strong>Visão geral da estrutura de exibição do espetáculo</strong><p>Observe se o layout recua em telas estreitas</p></article><article><span>Handoff</span><strong>Plano da estante de apresentação</strong><p>Registre a conclusão da revisão atual</p></article></div><div id="atlasCoreShell" class="atlas-core-shell"><div class="workflow-session"><header class="session-command"><div><span class="eyebrow">Estante de exposição de performance SESSION</span><h2>Bancada de cronômetro do estande de apresentação</h2></div><output id="workflowSessionClock">00:45</output><label>Duração da rodada<input id="workflowSessionLength" type="range" min="15" max="90" step="15" value="45"><span>s</span></label><button id="workflowSessionToggle" class="action primary" type="button">Cenário de aplicação inicial</button></header><div id="workflowSessionProgress" role="progressbar" aria-label="Progresso do suporte de exibição do espetáculo" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0"><i></i></div><section id="workflowCore" class="workflow-core session-stage" data-session-phase="ready" tabindex="-1"><!-- 11DZ_CORE_START:controls-selectors-numeric-stepper --><section class="stepper-studio"><header><div><span class="eyebrow">NUMBER STEPPER</span><h2>Suporte de quota para a bancada de exibição de espetáculo</h2><p>Use botões para distribuir a quantidade e, ao mesmo tempo, dividir o resultado em três blocos de processamento.</p></div><output id="stepperCapacity">Restam 8 vagas</output></header><div class="stepper-board"><aside class="stepper-stage"><strong id="stepperValue">4</strong><p>Quantidade atual</p><label class="stepper-direct"><span>Inserir a quantidade diretamente</span><input id="stepperInput" type="number" min="1" max="12" step="1" value="4" inputmode="numeric"></label><div class="stepper-controls"><button id="stepperMinus" type="button" aria-label="reduzir uma vaga">−</button><button id="stepperPlus" type="button" aria-label="Adicionar uma vaga" data-core-bridge="controls-selectors-numeric-stepper">＋</button></div><div class="stepper-shortcuts"><button type="button" data-stepper-value="2">2</button><button type="button" data-stepper-value="4">4</button><button type="button" data-stepper-value="8">8</button><button type="button" data-stepper-value="12">12</button></div></aside><section class="stepper-breakdown"><ol id="stepperSlots"><li><span>Área de preparação</span><strong id="stepperSlot0">0</strong><i><b id="stepperFill0"></b></i></li><li><span>Área de distribuição</span><strong id="stepperSlot1">0</strong><i><b id="stepperFill1"></b></i></li><li><span>Área de confirmação</span><strong id="stepperSlot2">0</strong><i><b id="stepperFill2"></b></i></li></ol><p id="stepperSummary">Área de preparo 2 unidades, área de distribuição 1 unidades, área de confirmação 1 unidades.</p></section></div></section><!-- 11DZ_CORE_END --></section><footer class="session-log"><strong id="workflowSessionScore">0 pontos de verificação de interação</strong><ol id="workflowSessionLaps" aria-label="Registro da rodada"></ol></footer></div></div><ol id="atlasLog" class="atlas-log"><li>Aguardando a primeira amostra do grafo</li></ol></section></div></section><p id="status" class="status" role="status" aria-live="polite"></p></section></div>
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/* 11DZ_CORE_SCRIPT_END */
const workflowBridgeSpec={"name":"controls-selectors-numeric-stepper","selector":"[data-core-bridge=\"controls-selectors-numeric-stepper\"]","mode":"click","key":"Enter"};const workflowBridgeCore=document.querySelector('#workflowCore');const workflowBridgeControl=workflowBridgeCore.querySelector(workflowBridgeSpec.selector);if(!workflowBridgeControl)throw new Error('Missing core bridge: '+workflowBridgeSpec.name);const workflowBridgeControlledId=workflowBridgeControl.getAttribute('aria-controls');const workflowBridgeControlled=workflowBridgeControlledId?document.getElementById(workflowBridgeControlledId):null;workflowBridgeCore.dataset.workflowBridge=workflowBridgeSpec.name;workflowBridgeCore.dataset.workflowVersion='0';function workflowBridgeSerialize(){const visualNode=workflowBridgeCore.firstElementChild||workflowBridgeCore;const visual=getComputedStyle(visualNode);const outputs=[...workflowBridgeCore.querySelectorAll('output,[role="status"],[aria-live],meter,progress')].map(node=>node.textContent.trim()+'|'+node.getAttribute('aria-valuenow')+'|'+node.getAttribute('value'));const canvas=[...workflowBridgeCore.querySelectorAll('canvas')].map(node=>{try{return node.toDataURL().slice(-160);}catch{return 'canvas-unavailable';}});return JSON.stringify({html:workflowBridgeCore.innerHTML,status:statusOutput.textContent,outputs,canvas,visual:[visual.display,visual.visibility,visual.opacity,visual.transform,visual.filter,visual.backgroundColor,visual.width,visual.height],scroll:workflowBridgeSpec.mode==='scroll'?workflowBridgeControl.scrollTop:null});}let workflowBridgeLastEffect=workflowBridgeSerialize();function workflowBridgeSummary(){const label=(workflowBridgeControl.getAttribute('aria-label')||workflowBridgeControl.textContent||workflowBridgeControl.value||workflowBridgeSpec.name).trim().replace(/\s+/g,' ').slice(0,72);return label+' · versão principal '+workflowBridgeCore.dataset.workflowVersion;}function workflowBridgeCommit(){const effect=workflowBridgeSerialize();if(effect===workflowBridgeLastEffect)return {changed:false,summary:workflowBridgeSummary()};workflowBridgeLastEffect=effect;workflowBridgeCore.dataset.workflowVersion=String(Number(workflowBridgeCore.dataset.workflowVersion||0)+1);return {changed:true,summary:workflowBridgeSummary()};}function workflowBridgeScheduleCommit(){queueMicrotask(workflowBridgeCommit);setTimeout(workflowBridgeCommit,0);}workflowBridgeControl.addEventListener("click",workflowBridgeScheduleCommit);const workflowBridgeStateTargets=new Set(workflowBridgeCore.querySelectorAll('dialog'));if(workflowBridgeControlled&&workflowBridgeCore.contains(workflowBridgeControlled))workflowBridgeStateTargets.add(workflowBridgeControlled);workflowBridgeStateTargets.forEach(target=>['close','cancel','toggle'].forEach(eventName=>target.addEventListener(eventName,workflowBridgeScheduleCommit)));function workflowBridgeActivate(){workflowBridgeControl.focus();workflowBridgeControl.click();const result=workflowBridgeCommit();setTimeout(workflowBridgeCommit,0);return result;}function workflowBridgeReset(){workflowBridgeCore.dataset.workflowVersion='0';workflowBridgeLastEffect=workflowBridgeSerialize();}
const workflowSessionCore=document.querySelector('#workflowCore');const workflowSessionToggle=document.querySelector('#workflowSessionToggle');const workflowSessionLength=document.querySelector('#workflowSessionLength');const workflowSessionState={phase:'ready',elapsed:0,limit:Number(workflowSessionLength.value),checkpoints:[],timer:null};function workflowSessionFormat(seconds){return String(Math.floor(seconds/60)).padStart(2,'0')+':'+String(seconds%60).padStart(2,'0');}function workflowSessionDrive(){const percent=Math.min(100,Math.round(workflowSessionState.elapsed/workflowSessionState.limit*100));document.querySelector('#workflowSessionClock').textContent=workflowSessionFormat(Math.max(0,workflowSessionState.limit-workflowSessionState.elapsed));const progress=document.querySelector('#workflowSessionProgress');progress.setAttribute('aria-valuenow',String(percent));progress.querySelector('i').style.width=percent+'%';workflowSessionCore.dataset.sessionPhase=workflowSessionState.phase;document.querySelector('#workflowSessionScore').textContent=workflowSessionState.checkpoints.length+' pontos de verificação de interação';}function workflowSessionLap(label){workflowSessionState.checkpoints.push({label,at:workflowSessionState.elapsed});const item=document.createElement('li');item.textContent=label+' · '+workflowSessionFormat(workflowSessionState.elapsed);document.querySelector('#workflowSessionLaps').append(item);workflowSessionDrive();}function workflowSessionStop(complete=false){clearInterval(workflowSessionState.timer);workflowSessionState.timer=null;workflowSessionState.phase=complete?'complete':'paused';workflowSessionToggle.textContent=complete?'Reiniciar':'Continuar rodada';workflowSessionToggle.setAttribute('aria-pressed','false');workflowSessionDrive();announce(complete?'Rodada concluída da estante de exibição do espetáculo':'A rodada foi pausada');}function workflowSessionStart(){if(workflowSessionState.phase==='complete'){workflowSessionState.elapsed=0;workflowSessionState.checkpoints=[];document.querySelector('#workflowSessionLaps').replaceChildren();}workflowSessionState.phase='running';workflowSessionToggle.textContent='Pausar rodada';workflowSessionToggle.setAttribute('aria-pressed','true');const bridge=workflowBridgeActivate();workflowSessionLap(bridge.summary);clearInterval(workflowSessionState.timer);workflowSessionState.timer=setInterval(()=>{workflowSessionState.elapsed+=1;if(workflowSessionState.elapsed>=workflowSessionState.limit){workflowSessionStop(true);return;}workflowSessionDrive();},1000);workflowSessionDrive();announce('A exibição do palco começou · '+bridge.summary);}workflowSessionToggle.addEventListener('click',()=>workflowSessionState.phase==='running'?workflowSessionStop():workflowSessionStart());workflowSessionLength.addEventListener('input',()=>{workflowSessionState.limit=Number(workflowSessionLength.value);workflowSessionState.elapsed=Math.min(workflowSessionState.elapsed,workflowSessionState.limit);workflowSessionDrive();});workflowSessionCore.addEventListener('keydown',event=>{if(event.key==='Enter'||event.key===' '){workflowSessionLap('operação por teclado');}});workflowSessionCore.addEventListener('click',event=>{if(event.target.closest('[data-core-bridge]'))workflowSessionLap('Ação principal · '+workflowBridgeSummary());});document.addEventListener('visibilitychange',()=>{if(document.hidden&&workflowSessionState.phase==='running')workflowSessionStop();});workflowSessionDrive();
workflowBridgeReset();
const atlasShell=document.querySelector('#atlasShell');const atlasState=document.querySelector('#atlasState');const atlasZoom=document.querySelector('#atlasZoom');const atlasZoomValue=document.querySelector('#atlasZoomValue');const atlasFocus=document.querySelector('#atlasFocus');const atlasCurrent=document.querySelector('#atlasCurrent');const atlasCount=document.querySelector('#atlasCount');const atlasModeLabel=document.querySelector('#atlasModeLabel');const atlasCards=[...document.querySelectorAll('[data-atlas-card]')];const atlasSummary=[...document.querySelectorAll('.atlas-summary article')];const atlasLog=document.querySelector('#atlasLog');const atlasModeButtons=[...atlasShell.querySelectorAll('[data-atlas-mode]')];const atlasNotes=["Lembrete da estante de exibição do espetáculo","Coleção do suporte de exibição de espetáculos","Visão geral da estrutura de exibição do espetáculo","Plano da estante de apresentação"];const atlasCore=document.querySelector('#workflowCore');let atlasCaptures=0;function atlasSetActive(index){atlasCards.forEach((button,buttonIndex)=>button.setAttribute('aria-pressed',String(buttonIndex===index)));atlasSummary.forEach((card,cardIndex)=>{if(cardIndex===index)card.setAttribute('data-active','true');else card.removeAttribute('data-active');});atlasCurrent.textContent=atlasNotes[index]||atlasNotes[0]||'Foco sem nome';}function atlasRender(reason){const version=atlasCore?.dataset.workflowVersion||'0';const zoom=Number(atlasZoom.value);const active=Math.min(atlasNotes.length-1,Number(atlasFocus.value)||0);atlasShell.style.setProperty('--atlas-zoom',String(zoom));atlasZoomValue.textContent=zoom+'%';atlasCount.textContent=String(atlasCaptures);atlasSetActive(active);atlasModeLabel.textContent={brief:'briefing',trace:'Rastreamento',handoff:'Transferência'}[atlasShell.dataset.atlasMode]||'briefing';atlasState.textContent=reason+' · versão principal '+version;}atlasModeButtons.forEach(button=>button.addEventListener('click',()=>{atlasModeButtons.forEach(item=>item.classList.toggle('primary',item===button));atlasShell.dataset.atlasMode=button.dataset.atlasMode;atlasRender('Alterado para'+button.textContent);announce('Modo de mapa:'+button.textContent);}));atlasCards.forEach((button,index)=>button.addEventListener('click',()=>{atlasFocus.value=String(index);atlasRender('Foco do exemplo alternado');announce('Foco do gráfico:'+atlasNotes[index]);}));atlasZoom.addEventListener('input',()=>{atlasRender('A escala da interface foi atualizada');announce('Magnificação do gráfico '+atlasZoom.value+'%');});atlasFocus.addEventListener('change',()=>{atlasRender('Foco de amostragem alternado');announce('Foco da amostragem:'+atlasNotes[Number(atlasFocus.value)||0]);});document.querySelector('#atlasCapture').addEventListener('click',()=>{const index=Math.min(atlasNotes.length-1,Number(atlasFocus.value)||0);const note=atlasNotes[index]||atlasNotes[0]||'Foco sem nome';const version=atlasCore?.dataset.workflowVersion||'0';atlasCaptures+=1;const item=document.createElement('li');item.textContent='Amostra '+atlasCaptures+' · '+note+' · versão principal '+version;const empty=atlasLog.querySelector('li')?.textContent==='Aguardando a primeira amostra do grafo';if(empty)atlasLog.replaceChildren(item);else atlasLog.prepend(item);while(atlasLog.children.length>6)atlasLog.lastElementChild.remove();atlasRender('Amostras incluídas '+atlasCaptures);announce('Amostras incluídas '+atlasCaptures+' · '+note);});atlasCore?.addEventListener('focusin',()=>atlasRender('Caso principal em foco'));atlasCore?.addEventListener('click',()=>atlasRender('O caso principal sofre uma interação'));atlasRender('Aguardando criação de amostra');
</script>
</body>
</html>