Gerador de faturas para aluguel de bicicletas
Conclua um gerador de faturas para o cenário de aluguel de bicicletas: inclui conteúdo real, controles acionáveis, feedback de status claro e layout adaptável 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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<title>Gerador de faturas para aluguel de bicicletas</title>
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<main class="page">
<header class="mast"><div><span class="eyebrow">terminal / gerador de faturas / INTERMEDIATE</span><h1>Gerador de faturas para aluguel de bicicletas</h1><p class="intro">Conclua um gerador de faturas para o cenário de aluguel de bicicletas: inclui conteúdo real, controles acionáveis, feedback de status claro e layout adaptável a diferentes tamanhos.</p></div><span class="scenario">aluguel de bicicletas</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 do gerador de faturas.</span></aside><section class="demo" aria-label="Área interativa do gerador de fatura de aluguel de bicicletas"><div class="workflow-session"><header class="session-command"><div><span class="eyebrow">aluguel de bicicletas SESSION</span><h2>Painel de cronometragem do período de aluguel</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">Iniciar aluguel</button></header><div id="workflowSessionProgress" role="progressbar" aria-label="Progresso do período de aluguel" 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:commerce-service-flows-invoice-maker --><div class="invoice-demo"><section class="panel"><header><span class="eyebrow">INVOICE MAKER</span><h2>Conta de aluguel de bicicletas</h2></header><div id="invoiceRows" class="invoice-rows"><label><span>Visão geral do aluguel de bicicletas</span><input data-invoice-quantity type="number" min="0" value="1" aria-label="Quantidade do panorama de aluguel de bicicletas"><input data-invoice-price type="number" min="0" value="45" aria-label="Preço unitário do panorama de aluguel de bicicletas"><output></output></label><label><span>Plano de aluguel de bicicletas</span><input data-invoice-quantity type="number" min="0" value="2" aria-label="Número de planos de aluguel de bicicletas"><input data-invoice-price type="number" min="0" value="75" aria-label="Preço unitário do plano de aluguel de bicicleta"><output></output></label><label><span>inspiração para aluguel de bicicletas</span><input data-invoice-quantity type="number" min="0" value="3" aria-label="quantidade de inspirações para aluguel de bicicletas"><input data-invoice-price type="number" min="0" value="105" aria-label="Preço unitário da inspiração para aluguel de bicicleta"><output></output></label></div><label class="invoice-tax">Imposto <input id="invoiceTax" type="range" min="0" max="20" value="6" data-core-bridge="commerce-service-flows-invoice-maker"><output id="invoiceTaxLabel">6%</output></label></section><aside class="invoice-paper"><span>INVOICE / LOCAL</span><h3>aluguel de bicicletas</h3><dl id="invoiceSummary"></dl><div><span>Imposto</span><strong id="invoiceTaxValue"></strong></div><footer><span>Total a pagar</span><strong id="invoiceTotal"></strong></footer><button id="invoicePrint" type="button">Pré-visualização de impressão</button></aside></div><!-- 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><p id="status" class="status" role="status" aria-live="polite"></p></section></div>
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<script>
'use strict';
const statusOutput = document.querySelector('#status');
const announce = message => { statusOutput.textContent = message; };
/* 11DZ_CORE_SCRIPT_START:commerce-service-flows-invoice-maker */
const invoiceRows=[...document.querySelectorAll('.invoice-rows label')];function renderInvoice(){let subtotal=0;const summary=[];invoiceRows.forEach(row=>{const quantity=Number(row.querySelector('[data-invoice-quantity]').value)||0;const price=Number(row.querySelector('[data-invoice-price]').value)||0;const line=quantity*price;subtotal+=line;row.querySelector('output').textContent='¥'+line;summary.push([row.querySelector('span').textContent,line]);});const taxRate=Number(document.querySelector('#invoiceTax').value);const tax=Math.round(subtotal*taxRate)/100;document.querySelector('#invoiceTaxLabel').textContent=taxRate+'%';document.querySelector('#invoiceTaxValue').textContent='¥'+tax.toFixed(2);document.querySelector('#invoiceTotal').textContent='¥'+(subtotal+tax).toFixed(2);document.querySelector('#invoiceSummary').innerHTML=summary.map(([name,value])=>'<div><dt>'+name+'</dt><dd>¥'+value+'</dd></div>').join('');announce('valor total da fatura '+(subtotal+tax).toFixed(2)+' R$');}document.querySelectorAll('.invoice-demo input').forEach(input=>input.addEventListener('input',renderInvoice));document.querySelector('#invoicePrint').addEventListener('click',()=>announce('A visualização de impressão está pronta; esta demonstração não chamará a impressão do sistema'));renderInvoice();
/* 11DZ_CORE_SCRIPT_END */
const workflowBridgeSpec={"name":"commerce-service-flows-invoice-maker","selector":"[data-core-bridge=\"commerce-service-flows-invoice-maker\"]","mode":"range","key":"ArrowRight"};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("input",workflowBridgeScheduleCommit);workflowBridgeControl.addEventListener('change',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();const step=Number(workflowBridgeControl.step)||1;const min=workflowBridgeControl.min===''?-Infinity:Number(workflowBridgeControl.min);const max=workflowBridgeControl.max===''?Infinity:Number(workflowBridgeControl.max);let next=Math.min(max,Math.max(min,(Number(workflowBridgeControl.value)||0)+step));if(next===Number(workflowBridgeControl.value))next=Math.max(min,Number(workflowBridgeControl.value)-step);workflowBridgeControl.value=String(next);workflowBridgeControl.dispatchEvent(new Event('input',{bubbles:true}));workflowBridgeControl.dispatchEvent(new Event('change',{bubbles:true}));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 de período de aluguel concluída':'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('Começou a rodada do período de aluguel · '+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();
</script>
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