Capacidades de medios y dispositivos del navegador

Notas de almacenamiento local para la pantalla secundaria de audio

Completa una nota de almacenamiento local para el escenario de la consola de audio de una pantalla secundaria: incluye contenido real, controles interactivos, comentarios de estado claros y un diseño adaptado a distintos tamaños.

Capacidades de medios y dispositivos del navegadorBloc de notas de almacenamiento localHTMLCSSBrowser API
Tras activar JavaScript, puedes editar, ejecutar y guardar este ejemplo. El código fuente fijado es el siguiente:
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    <header class="mast"><div><span class="eyebrow">editorial / bloc de notas de almacenamiento local / INTERMEDIATE</span><h1>Notas de almacenamiento local para la pantalla secundaria de audio</h1><p class="intro">Completa una nota de almacenamiento local para el escenario de la consola de audio de una pantalla secundaria: incluye contenido real, controles interactivos, comentarios de estado claros y un diseño adaptado a distintos tamaños.</p></div><span class="scenario">Pantalla secundaria de audio</span></header>
    <figure class="composition-gallery"><section class="demo" aria-label="Área interactiva de notas de almacenamiento local de la pantalla secundaria de audio"><div id="similarityShell" class="similarity-shell" data-review-state="focus"><header class="similarity-head"><div><span class="eyebrow">Subpantalla de audio / REVIEW STUDIO</span><h2>Puesto de revisión de notas de almacenamiento local</h2><p>Coloca el caso principal en una envoltura de revisión independiente y registra además el modo de observación, los puntos de control y la conclusión actual.</p></div><output id="similarityState">Listo para iniciar la revisión</output></header><div class="similarity-layout"><aside class="similarity-console"><fieldset class="similarity-modes"><legend>Vista de revisión</legend><button class="action primary" type="button" data-review-view="focus">Vista principal enfocada</button><button class="action" type="button" data-review-view="compare">Lista de comprobación</button><button class="action" type="button" data-review-view="audit">Registrar en el lugar</button></fieldset><label>Observación de densidad<input id="similarityDensity" type="range" min="84" max="124" value="100"><output id="similarityDensityValue">100%</output></label><label class="similarity-pin"><input id="similarityPin" type="checkbox"> Fijar el punto de comprobación actual</label><ol id="similarityChecklist" class="similarity-checklist"><li>Avisos de la pantalla secundaria de audio</li><li>Favoritos del panel secundario de audio</li><li>Vista general de la pantalla secundaria de audio</li><li>Plan de pantalla secundaria de audio</li></ol><button id="similarityCapture" class="action primary" type="button">Registrar punto de control</button><ol id="similarityLog" class="similarity-log"><li>Esperando el primer registro de inspección</li></ol></aside><section class="similarity-stage"><div id="similarityDeck" class="similarity-deck"><article data-active="true"><span>01</span><strong>Avisos de la pantalla secundaria de audio</strong><p>Comprueba si los cambios de estado son visibles</p></article><article><span>02</span><strong>Favoritos del panel secundario de audio</strong><p>Confirma que el teclado y el clic ofrecen la misma entrada</p></article><article><span>03</span><strong>Vista general de la pantalla secundaria de audio</strong><p>Observa si el diseño retrocede en pantallas estrechas</p></article><article><span>04</span><strong>Plan de pantalla secundaria de audio</strong><p>Registrar la conclusión de la revisión actual</p></article></div><div id="similarityCoreShell" class="similarity-core-shell"><div class="workflow-session"><header class="session-command"><div><span class="eyebrow">SESSION del panel secundario de audio</span><h2>Mesa de temporizador de la pantalla secundaria de audio</h2></div><output id="workflowSessionClock">00:45</output><label>Duración de la ronda<input id="workflowSessionLength" type="range" min="15" max="90" step="15" value="45"><span>segundo</span></label><button id="workflowSessionToggle" class="action primary" type="button">Iniciar registro de capacidades</button></header><div id="workflowSessionProgress" role="progressbar" aria-label="Progreso de la pantalla secundaria de audio" 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:browser-media-device-local-storage --><div class="storage-notebook"><aside><span class="eyebrow">LOCAL STORAGE</span><h2>Nota sin conexión para pantalla secundaria de audio</h2><p>Las acciones guardadas se escriben primero en el navegador;en entornos restringidos se usa automáticamente la memoria de esta página.</p><output id="storageMode">Detectando capacidad de almacenamiento</output></aside><form id="storageForm"><label>Título<input id="storageTitle" required value="Registro de la pantalla secundaria de audio"></label><label>Etiqueta<select id="storageTag"><option>Pendiente</option><option>Inspira</option><option>completado</option></select></label><label class="storage-body">Cuerpo<textarea id="storageBody" rows="5" required>Registra una instrucción que pueda conservarse sin conexión.</textarea></label><button class="action primary" type="submit" data-core-bridge="browser-media-device-local-storage">Guardar nueva versión</button><button id="storageRemove" class="action" type="button">Eliminar datos locales</button></form><section><h3>Registro de versiones</h3><ol id="storageVersions"></ol></section></div><!-- 11DZ_CORE_END --></section><footer class="session-log"><strong id="workflowSessionScore">0 puntos de interacción</strong><ol id="workflowSessionLaps" aria-label="Registro de ronda"></ol></footer></div></div></section></div></div><p id="status" class="status" role="status" aria-live="polite"></p></section><figcaption class="gallery-caption"><strong>Pantalla secundaria de audio / GALLERY 03</strong></figcaption></figure>
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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+' puntos de control de interacción';}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':'Siguiente turno';workflowSessionToggle.setAttribute('aria-pressed','false');workflowSessionDrive();announce(complete?'Ronda de la pantalla secundaria de audio completada':'La ronda se ha pausado');}function workflowSessionStart(){if(workflowSessionState.phase==='complete'){workflowSessionState.elapsed=0;workflowSessionState.checkpoints=[];document.querySelector('#workflowSessionLaps').replaceChildren();}workflowSessionState.phase='running';workflowSessionToggle.textContent='Ronda en pausa';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('La ronda del monitor secundario de audio ha comenzado · '+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('operación con teclado');}});workflowSessionCore.addEventListener('click',event=>{if(event.target.closest('[data-core-bridge]'))workflowSessionLap('Operación principal · '+workflowBridgeSummary());});document.addEventListener('visibilitychange',()=>{if(document.hidden&&workflowSessionState.phase==='running')workflowSessionStop();});workflowSessionDrive();
workflowBridgeReset();
const similarityShell=document.querySelector('#similarityShell');const similarityState=document.querySelector('#similarityState');const similarityDensity=document.querySelector('#similarityDensity');const similarityDensityValue=document.querySelector('#similarityDensityValue');const similarityPin=document.querySelector('#similarityPin');const similarityChecklistItems=[...document.querySelectorAll('#similarityChecklist li')];const similarityDeckItems=[...document.querySelectorAll('#similarityDeck article')];const similarityLog=document.querySelector('#similarityLog');const similarityNotes=["Avisos de la pantalla secundaria de audio","Favoritos del panel secundario de audio","Vista general de la pantalla secundaria de audio","Plan de pantalla secundaria de audio"];const similarityCore=document.querySelector('#workflowCore');let similarityCaptures=0;function similaritySetActive(index){similarityDeckItems.forEach((item,itemIndex)=>{if(itemIndex===index)item.setAttribute('data-active','true');else item.removeAttribute('data-active');});}function similarityRender(reason){const version=similarityCore?.dataset.workflowVersion||'0';const density=Number(similarityDensity.value);similarityShell.style.setProperty('--similarity-density',String(density));similarityShell.dataset.pinned=String(similarityPin.checked);similarityDensityValue.textContent=density+'%';similarityChecklistItems.forEach((item,index)=>item.classList.toggle('is-done',index<similarityCaptures));similaritySetActive(Math.min(similarityDeckItems.length-1,similarityCaptures%similarityDeckItems.length));similarityState.textContent=reason+' · versión principal '+version+(similarityPin.checked?' · fijado':'');}document.querySelectorAll('[data-review-view]').forEach(button=>button.addEventListener('click',()=>{document.querySelectorAll('[data-review-view]').forEach(item=>item.classList.toggle('primary',item===button));similarityShell.dataset.reviewState=button.dataset.reviewView;similarityRender('Se ha cambiado a'+button.textContent);announce('Vista de revisión:'+button.textContent);}));similarityDensity.addEventListener('input',()=>{similarityRender('La densidad de observación se ha actualizado');announce('Observación de densidad '+similarityDensity.value+'%');});similarityPin.addEventListener('change',()=>{similarityRender(similarityPin.checked?'El punto de control actual está fijado':'El punto de control actual está desbloqueado');announce(similarityPin.checked?'Punto de control fijado':'Punto de control fijo cancelado');});document.querySelector('#similarityCapture').addEventListener('click',()=>{const note=similarityNotes[similarityCaptures%similarityNotes.length];const version=similarityCore?.dataset.workflowVersion||'0';similarityCaptures+=1;const item=document.createElement('li');item.textContent='Punto de control '+similarityCaptures+' · '+note+' · versión principal '+version;const empty=similarityLog.querySelector('li')?.textContent==='Esperando el primer registro de inspección';if(empty)similarityLog.replaceChildren(item);else similarityLog.prepend(item);while(similarityLog.children.length>6)similarityLog.lastElementChild.remove();similarityRender('Punto de control registrado '+similarityCaptures);announce('Punto de control registrado '+similarityCaptures+' · '+note);});similarityCore?.addEventListener('focusin',()=>similarityRender('La vista principal ha recibido el foco'));similarityCore?.addEventListener('click',()=>similarityRender('Se produjo una interacción en la vista principal'));similarityRender('Listo para iniciar la revisión');
  </script>
</body>
</html>
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