Local events priority queue
Complete a priority queue in a local-events scenario: real content, actionable controls, clear state feedback, and layouts across sizes.
With JavaScript enabled, you can edit, run, and save this example. The fixed source is as follows:
<!doctype html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Local events priority queue</title>
<style>
:root { --ink:#111111; --paper:#f8f8f4; --accent:#111111; --secondary:#8d8d88; --line:color-mix(in srgb, var(--ink) 18%, transparent); --shadow:0 24px 60px color-mix(in srgb, var(--ink) 16%, transparent); color-scheme:light; }
* { box-sizing:border-box; }
html { min-width:320px; background:var(--paper); }
body { min-height:100vh; margin:0; overflow-x:hidden; color:var(--ink); font-family:Helvetica,"PingFang SC",sans-serif; background:repeating-linear-gradient(0deg,transparent 0 31px,color-mix(in srgb,var(--ink) 7%,transparent) 32px),var(--paper); }
button,input,select,textarea { color:inherit; font:inherit; }
button,[role="button"],input,select,textarea { accent-color:var(--accent); }
button { cursor:pointer; }
button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,[tabindex]:focus-visible { outline:3px solid var(--accent); outline-offset:3px; }
[hidden] { display:none !important; }
@media (max-width:700px) { .mast h1 { line-height:1.08 !important; letter-spacing:-.035em !important; overflow-wrap:anywhere; } }
@media (prefers-reduced-motion:reduce) { *,*::before,*::after { scroll-behavior:auto !important; animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important; } }
.page{width:min(1120px,calc(100% - 30px));margin:auto;padding:48px 0 80px}.mast{display:grid;grid-template-columns:1fr auto;border-top:10px solid var(--ink);padding-top:20px;gap:20px;align-items:end;margin-bottom:26px}.mast h1{font-family:Helvetica,"PingFang SC",sans-serif;font-weight:900;font-size:clamp(44px,10vw,106px);letter-spacing:-.075em;margin:0;line-height:.82}.eyebrow{display:inline-block;margin-bottom:12px;padding:5px 8px;color:var(--paper);background:var(--ink);font:900 10px/1 ui-monospace,monospace;letter-spacing:.14em}.intro{max-width:700px;line-height:1.55}.scenario{padding:9px 12px;border:3px solid var(--ink);font-weight:900}.demo{border:3px solid var(--ink);border-radius:0;box-shadow:12px 12px 0 var(--ink);position:relative;min-height:410px;overflow:hidden;padding:clamp(22px,4vw,46px);background:var(--paper)}@media(max-width:700px){.page{width:calc(100% - 18px);padding:20px 0}.mast{grid-template-columns:1fr}.demo{padding:15px}}
.panel{padding:30px;border:0;border-radius:42px 12px;background:color-mix(in srgb,var(--secondary) 18%,var(--paper))}.row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}.stack{display:flex;flex-direction:column;gap:20px}.action{min-height:48px;padding:12px 22px;border:0;border-radius:50% 50% 18px 18px;background:color-mix(in srgb,var(--secondary) 42%,transparent);font-weight:800}.action.primary,.action.is-active{color:var(--paper);background:var(--accent)}.muted{color:color-mix(in srgb,var(--ink) 64%,transparent);line-height:1.7}.status{min-height:25px;margin-top:16px;color:var(--accent)}.metric{font-size:clamp(32px,7vw,66px);font-weight:800}.meter{height:11px;border-radius:50%;background:color-mix(in srgb,var(--ink) 10%,transparent)}.meter>i{display:block;height:100%;border-radius:inherit;background:var(--accent)}.chip{padding:8px 12px;border-radius:50%;background:var(--paper)}
.composition-index{position:relative;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px}.index-mark{display:grid;align-content:space-between;width:76px;padding:16px 10px;border:1px solid var(--line);color:var(--accent);background:color-mix(in srgb,var(--paper) 82%,transparent);text-align:center}.index-mark strong{font:900 34px/1 ui-monospace,monospace}.index-mark span{writing-mode:vertical-rl;font:800 10px/1.2 ui-monospace,monospace;letter-spacing:.18em}.composition-index .demo{grid-column:1;grid-row:1}.composition-index::before{content:"";position:absolute;left:-12px;top:38px;width:5px;height:45%;background:linear-gradient(var(--accent),var(--secondary))}@media(max-width:700px){.composition-index{grid-template-columns:1fr}.index-mark{grid-row:1;width:auto;grid-template-columns:auto 1fr}.index-mark span{writing-mode:horizontal-tb}.composition-index .demo{grid-row:2}}
.priority-demo{display:grid;gap:16px;max-width:760px;margin:auto}.priority-demo h2{margin:.3em 0}.priority-list{display:grid;gap:8px;padding:0;list-style:none}.priority-list li{display:grid;grid-template-columns:38px 1fr auto;gap:12px;align-items:center;padding:13px;border:1px solid var(--line);border-radius:12px;background:var(--paper)}.priority-list li>b{display:grid;width:34px;height:34px;place-items:center;border-radius:50%;background:var(--ink);color:var(--paper)}.priority-list li div{display:flex;gap:5px}.priority-list button{width:36px;height:36px;border:1px solid var(--line);border-radius:8px;background:transparent}.workflow-compare{display:grid;grid-template-columns:minmax(230px,.55fr) minmax(0,1.45fr);gap:18px}.compare-stage{display:grid;gap:12px;min-width:0}.compare-stage>header{display:flex;justify-content:space-between;gap:16px;align-items:end}.compare-stage h2{margin:.2em 0}.compare-core{--compare-split:50%;min-width:0;padding:14px;clip-path:inset(0 calc(100% - var(--compare-split)) 0 0);outline:1px dashed var(--accent);outline-offset:-8px;transition:clip-path .25s,filter .25s}.compare-core[data-compare-channel="B"]{filter:hue-rotate(32deg) saturate(1.15)}.compare-controls{display:grid;align-content:start;gap:16px;padding:20px;border:1px solid var(--line);border-radius:24px 4px 24px 4px;background:var(--paper)}.compare-controls fieldset,.compare-controls>label{display:grid;gap:8px}.compare-controls input[type="range"]{width:100%}#workflowCompareShelf{display:grid;gap:6px;padding:0;margin:0;list-style:none}#workflowCompareShelf li{display:grid;grid-template-columns:auto 1fr auto;gap:8px;padding:9px;border-top:1px solid var(--line);font-size:12px}@media(max-width:900px){.workflow-compare{grid-template-columns:1fr}.compare-stage{order:-1}.compare-core{clip-path:none;border-left:8px solid var(--accent)}}
</style>
</head>
<body data-aesthetic="monochrome" data-composition="field-index">
<main class="page">
<header class="mast"><div><span class="eyebrow">monochrome / Priority Queue / ADVANCED</span><h1>Local events priority queue</h1><p class="intro">Complete a priority queue in a local-events scenario: real content, actionable controls, clear state feedback, and layouts across sizes.</p></div><span class="scenario">Local Events</span></header>
<div class="composition-index"><section class="demo" aria-label="Interactive area for local activity priority queue"><div class="workflow-compare"><form id="workflowCompareControls" class="compare-controls"><fieldset><legend>Reference Channel</legend><label><input type="radio" name="workflowChannel" value="A" checked>A · Parent-Child Activities</label><label><input type="radio" name="workflowChannel" value="B">B · Outdoor Activities</label></fieldset><label>Travel Distance Weight<input id="workflowCompareWeight" type="range" min="10" max="90" value="50"><output id="workflowCompareWeightValue">50 km</output></label><label><input id="workflowCompareFreeze" type="checkbox">Freeze current version</label><button id="workflowCompareCapture" class="action primary" type="button">Sample and Collect Events</button><ol id="workflowCompareShelf" aria-label="Version Sampling Record"></ol></form><section class="compare-stage"><header><span class="eyebrow">Local Events COMPARE</span><h2>Dual-Version Activity Comparison</h2><output id="workflowCompareLive">Version A waiting for sampling</output></header><section id="workflowCore" class="workflow-core compare-core" data-compare-channel="A" style="--compare-split:50%"><!-- 11DZ_CORE_START:cards-lists-content-priority-queue --><div class="priority-demo panel"><header><span class="eyebrow">PRIORITY QUEUE</span><h2>Local Events Priority Queue</h2></header><ol id="priorityQueue" class="priority-list"><li><b>1</b><span>Local Event Record</span><div><button type="button" data-priority-up aria-label="Move local event record up" data-core-bridge="cards-lists-content-priority-queue">↑</button><button type="button" data-priority-down aria-label="Move Down Local Event Record">↓</button></div></li><li><b>2</b><span>Local event collaboration</span><div><button type="button" data-priority-up aria-label="Move Up Local Event Collaboration">↑</button><button type="button" data-priority-down aria-label="Move down local event collaboration">↓</button></div></li><li><b>3</b><span>Local Activity Progress</span><div><button type="button" data-priority-up aria-label="Move local event progress up">↑</button><button type="button" data-priority-down aria-label="Move Local Event Progress Down">↓</button></div></li><li><b>4</b><span>Local Event Reminders</span><div><button type="button" data-priority-up aria-label="Move local event reminder up">↑</button><button type="button" data-priority-down aria-label="Move local activity reminders down">↓</button></div></li><li><b>5</b><span>Local events collection</span><div><button type="button" data-priority-up aria-label="Move up local event favorites">↑</button><button type="button" data-priority-down aria-label="Move down local event favorites">↓</button></div></li><li><b>6</b><span>Local Events Overview</span><div><button type="button" data-priority-up aria-label="Move Local Event Overview Up">↑</button><button type="button" data-priority-down aria-label="Move Down Local Events Overview">↓</button></div></li></ol></div><!-- 11DZ_CORE_END --></section></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>Local Events FIELD INDEX</span></aside></div>
</main>
<script>
'use strict';
const statusOutput = document.querySelector('#status');
const announce = message => { statusOutput.textContent = message; };
/* 11DZ_CORE_SCRIPT_START:cards-lists-content-priority-queue */
const priorityQueue=document.querySelector('#priorityQueue');function numberPriority(){[...priorityQueue.children].forEach((item,index)=>{item.querySelector(':scope>b').textContent=index+1;});}priorityQueue.addEventListener('click',event=>{const button=event.target.closest('button');if(!button)return;const item=button.closest('li');if(button.hasAttribute('data-priority-up')&&item.previousElementSibling)priorityQueue.insertBefore(item,item.previousElementSibling);if(button.hasAttribute('data-priority-down')&&item.nextElementSibling)priorityQueue.insertBefore(item.nextElementSibling,item);numberPriority();announce(item.querySelector('span').textContent+' Current priority '+([...priorityQueue.children].indexOf(item)+1));});
/* 11DZ_CORE_SCRIPT_END */
const workflowBridgeSpec={"name":"cards-lists-content-priority-queue","selector":"[data-core-bridge=\"cards-lists-content-priority-queue\"]","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+' · Core Version '+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 workflowCompareCore=document.querySelector('#workflowCore');const workflowCompareWeight=document.querySelector('#workflowCompareWeight');const workflowCompareState={channel:'A',weight:50,frozen:false,snapshots:[]};function workflowCompareFingerprint(){const controls=[...workflowCompareCore.querySelectorAll('input,select,textarea')];const outputs=[...workflowCompareCore.querySelectorAll('output,[role="status"],strong')].map(node=>node.textContent.trim()).filter(Boolean);return {controlValues:controls.map(control=>control.type==='checkbox'||control.type==='radio'?control.checked:control.value),summary:outputs.slice(0,4).join(' / '),nodes:workflowCompareCore.querySelectorAll('*').length};}function workflowCompareDrive(){workflowCompareCore.dataset.compareChannel=workflowCompareState.channel;workflowCompareCore.style.setProperty('--compare-split',workflowCompareState.weight+'%');document.querySelector('#workflowCompareWeightValue').textContent=workflowCompareState.weight+' kilometers';document.querySelector('#workflowCompareLive').textContent=workflowCompareState.channel+' Version · '+workflowCompareState.weight+' kilometers'+(workflowCompareState.frozen?' · Frozen':'');announce('Viewing activity comparison '+workflowCompareState.channel+' Version');}function workflowCompareCapture(source){const bridge=workflowBridgeActivate();const snapshot={...workflowCompareFingerprint(),channel:workflowCompareState.channel,weight:workflowCompareState.weight,source,bridge:bridge.summary};workflowCompareState.snapshots.push(snapshot);const item=document.createElement('li');item.innerHTML='<b>'+snapshot.channel+'</b><span>'+(snapshot.summary||snapshot.bridge)+'</span><small>'+snapshot.weight+' km · '+snapshot.bridge+'</small>';document.querySelector('#workflowCompareShelf').prepend(item);announce('sampled '+snapshot.channel+' Version and bookmark activities · '+bridge.summary);}document.querySelectorAll('[name="workflowChannel"]').forEach(input=>input.addEventListener('change',()=>{workflowCompareState.channel=input.value;workflowCompareDrive();}));workflowCompareWeight.addEventListener('input',()=>{workflowCompareState.weight=Number(workflowCompareWeight.value);workflowCompareDrive();});document.querySelector('#workflowCompareFreeze').addEventListener('change',event=>{workflowCompareState.frozen=event.currentTarget.checked;workflowCompareDrive();});document.querySelector('#workflowCompareCapture').addEventListener('click',()=>workflowCompareCapture('Button Sampling'));workflowCompareCore.addEventListener('dblclick',()=>workflowCompareCapture('Main view double-click'));workflowCompareDrive();
workflowBridgeReset();
</script>
</body>
</html>