Capacités des médias et des appareils du navigateur

Observateur des requêtes média du laboratoire d’appareils

Dans le contexte du laboratoire d’appareils, réaliser l’observateur de requêtes média : contenus réels, contrôles actionnables, retour d’état clair et mise en page adaptée à différentes tailles.

Capacités des médias et des appareils du navigateurobservateur de requêtes médiaHTMLCSSBrowser API
Après activation de JavaScript, ce cas peut être modifié, exécuté et enregistré. Code source fixe ci-dessous :
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  <title>Observateur des requêtes média du laboratoire d’appareils</title>
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    <header class="mast"><div><span class="eyebrow">dark-neon / observateur de requêtes multimédia / INTERMEDIATE</span><h1>Observateur des requêtes média du laboratoire d’appareils</h1><p class="intro">Dans le contexte du laboratoire d’appareils, réaliser l’observateur de requêtes média : contenus réels, contrôles actionnables, retour d’état clair et mise en page adaptée à différentes tailles.</p></div><span class="scenario">Laboratoire d’appareils</span></header>
    <div class="composition-index"><section class="demo" aria-label="Zone d’interaction du dispositif d’observation des media queries du laboratoire d’appareils"><div class="workflow-dispatch"><aside class="dispatch-console"><span class="eyebrow">Laboratoire d’appareils DISPATCH</span><h2>Console de contrôle des appareils</h2><form id="workflowDispatchForm"><label>Type de tâche<select id="workflowDispatchKind"><option>capacité de l’écran</option><option>Capacité de saisie</option><option>Capacité de stockage</option></select></label><label>éléments à vérifier<input id="workflowDispatchAmount" type="number" min="1" max="9999" value="21"><span>élément</span></label><fieldset><legend>Priorité de traitement</legend><label><input type="radio" name="workflowPriority" value="normal" checked>Standard</label><label><input type="radio" name="workflowPriority" value="urgent">Urgent</label></fieldset><button class="action primary" type="submit">Commencer la vérification</button></form><label>Tâche en cours<select id="workflowDispatchActive" aria-label="Basculer la tâche en cours"><option value="1">capacité de l’écran</option><option value="2">Capacité de saisie</option></select></label><output id="workflowDispatchSummary">En attente de planification</output></aside><section id="workflowCore" class="workflow-core dispatch-workbench" data-dispatch-priority="normal"><!-- 11DZ_CORE_START:browser-media-device-media-query --><div class="query-observatory"><header><span class="eyebrow">MEDIA QUERY MATRIX</span><h2>Poste de requête environnementale du laboratoire d’appareils</h2><p>Cochez les conditions à observer ; les changements du navigateur mettront immédiatement à jour les voyants.</p></header><fieldset id="queryFilters"><legend>Conditions d’observation</legend><label><input type="checkbox" value="0" checked data-core-bridge="browser-media-device-media-query"><span>Écran étroit</span><code>(max-width: 600px)</code><i aria-hidden="true"></i></label><label><input type="checkbox" value="1" checked><span>vertical</span><code>(orientation: portrait)</code><i aria-hidden="true"></i></label><label><input type="checkbox" value="2" checked><span>Réduire les animations</span><code>(prefers-reduced-motion: reduce)</code><i aria-hidden="true"></i></label><label><input type="checkbox" value="3" checked><span>Contraste élevé</span><code>(prefers-contrast: more)</code><i aria-hidden="true"></i></label></fieldset><section class="query-preview"><div id="queryShape" aria-hidden="true"></div><output id="querySummary" role="status">En attente du calcul</output><ul id="queryMatches"></ul><button id="queryReset" class="action" type="button">Tout afficher</button></section></div><!-- 11DZ_CORE_END --></section></div><p id="status" class="status" role="status" aria-live="polite"></p></section><aside class="index-mark" aria-hidden="true"><strong>05</strong><span>Laboratoire d’appareils FIELD INDEX</span></aside></div>
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    const statusOutput = document.querySelector('#status');
    const announce = message => { statusOutput.textContent = message; };
    /* 11DZ_CORE_SCRIPT_START:browser-media-device-media-query */
const queryDefinitions=[["Écran étroit","(max-width: 600px)"],["vertical","(orientation: portrait)"],["Réduire les animations","(prefers-reduced-motion: reduce)"],["Contraste élevé","(prefers-contrast: more)"]];const queryRows=[...document.querySelectorAll('#queryFilters label')];const queryInputs=[...document.querySelectorAll('#queryFilters input')];const queryLists=queryDefinitions.map(entry=>matchMedia(entry[1]));function renderQueries(){const enabled=new Set(queryInputs.filter(input=>input.checked).map(input=>Number(input.value)));const matched=[];queryRows.forEach((row,index)=>{const active=enabled.has(index)&&queryLists[index].matches;row.classList.toggle('is-match',active);row.hidden=!enabled.has(index);if(active)matched.push(queryDefinitions[index][0]);});document.querySelector('#querySummary').textContent=matched.length+' Condition environnementale de l’élément détectée';document.querySelector('#queryMatches').replaceChildren(...matched.map(label=>{const item=document.createElement('li');item.textContent=label;return item;}));document.querySelector('#queryShape').style.transform='scale('+(1-Math.min(.24,matched.length*.05))+')';}queryInputs.forEach(input=>input.addEventListener('change',renderQueries));queryLists.forEach(query=>query.addEventListener?.('change',renderQueries));document.querySelector('#queryReset').addEventListener('click',()=>{queryInputs.forEach(input=>{input.checked=true;});queryRows.forEach(row=>{row.hidden=false;});renderQueries();announce('Toutes les requêtes média ont été restaurées');});renderQueries();
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workflowBridgeReset();
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