Task Center Notification Stack
Complete a toast stack for a task center scenario: includes real content, interactive controls, clear status feedback, and responsive layout across sizes.
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<header class="mast"><div><span class="eyebrow">Magazine / Message Toast Stack / INTERMEDIATE</span><h1>Task Center Notification Stack</h1><p class="intro">Complete a toast stack for a task center scenario: includes real content, interactive controls, clear status feedback, and responsive layout across sizes.</p></div><span class="scenario">Task Center</span></header>
<div class="composition-index"><section class="demo" aria-label="Task Center Message Toast Stack Interaction Area"><div class="workflow-session"><header class="session-command"><div><span class="eyebrow">Task Center SESSION</span><h2>Task time slot timer</h2></div><output id="workflowSessionClock">00:45</output><label>Round Duration<input id="workflowSessionLength" type="range" min="15" max="90" step="15" value="45"><span>sec</span></label><button id="workflowSessionToggle" class="action primary" type="button">Start task</button></header><div id="workflowSessionProgress" role="progressbar" aria-label="Task Time Progress" 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:overlays-feedback-toast-stack --><section class="toast-stack-demo"><div class="toast-controls"><span class="eyebrow">TOAST STACK</span><h2>Task Center Message Lab</h2><p>New messages enter from the top of the stack, with up to three kept at once; each message has its own close control.</p><div class="toast-trigger-grid"><button type="button" data-toast-kind="success" data-core-bridge="overlays-feedback-toast-stack"><i aria-hidden="true">✓</i>Completion message</button><button type="button" data-toast-kind="warning"><i aria-hidden="true">!</i>Notification messages</button><button type="button" data-toast-kind="info"><i aria-hidden="true">i</i>General message</button></div><button id="toastClearAll" class="action" type="button">Clear messages</button></div><aside class="toast-viewport"><span>NOTIFICATION AREA</span><div id="patternToastStack" aria-live="polite" aria-relevant="additions removals"></div></aside></section><!-- 11DZ_CORE_END --></section><footer class="session-log"><strong id="workflowSessionScore">0 interaction checkpoints</strong><ol id="workflowSessionLaps" aria-label="Round Log"></ol></footer></div><p id="status" class="status" role="status" aria-live="polite"></p></section><aside class="index-mark" aria-hidden="true"><strong>05</strong><span>Task Center FIELD INDEX</span></aside></div>
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<script>
'use strict';
const statusOutput = document.querySelector('#status');
const announce = message => { statusOutput.textContent = message; };
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const patternToastStack=document.querySelector('#patternToastStack');let patternToastId=0;const toastDetails={success:['✓','Processing complete','#2f8b67'],warning:['!','Needs review','#c47b22'],info:['i','Status Update','#386bb7']};function removePatternToast(item,message){item.remove();announce(message);}document.querySelectorAll('[data-toast-kind]').forEach(button=>button.addEventListener('click',()=>{patternToastId+=1;const detail=toastDetails[button.dataset.toastKind];const item=document.createElement('article');item.className='pattern-toast';item.style.setProperty('--tone',detail[2]);item.innerHTML='<i>'+detail[0]+'</i><div><strong>'+detail[1]+'</strong><small>Task Center Messages '+patternToastId+'</small></div><button type="button" aria-label="Close'+detail[1]+'">×</button>';item.querySelector('button').addEventListener('click',()=>removePatternToast(item,'Message dismissed'));patternToastStack.prepend(item);while(patternToastStack.children.length>3)patternToastStack.lastElementChild.remove();announce(detail[1]+'Added to message stack');}));document.querySelector('#toastClearAll').addEventListener('click',()=>{patternToastStack.replaceChildren();announce('Message stack cleared');});
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workflowBridgeReset();
</script>
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