Care visit shopping cart calculator
Complete the shopping cart calculator for a care visit scenario: includes real content, actionable controls, clear status feedback, and responsive layouts.
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<header class="mast"><div><span class="eyebrow">paper / Shopping Cart Calculator / BEGINNER</span><h1>Care visit shopping cart calculator</h1><p class="intro">Complete the shopping cart calculator for a care visit scenario: includes real content, actionable controls, clear status feedback, and responsive layouts.</p></div><span class="scenario">Care Visit</span></header>
<div class="composition-split"><aside class="split-note"><b>CASE 02</b><span>Master the semantic structure, responsive layout, keyboard interaction, and state synchronization of the shopping cart calculator.</span></aside><section class="demo" aria-label="Care Visit Cart Calculator Interaction Area"><div id="workflowSpatial" class="workflow-spatial" style="--spatial-width:64%;--spatial-zoom:1"><header><div><span class="eyebrow">Care Visit SPATIAL CANVAS</span><h2>Care Visit Adjustment Desk</h2></div><label>Estimated quantity share<input id="workflowSpatialWidth" type="range" min="38" max="82" value="64"><output id="workflowSpatialWidthValue">64%</output></label><label>Content Scaling<input id="workflowSpatialZoom" type="range" min="80" max="120" value="100"><output id="workflowSpatialZoomValue">100%</output></label></header><div class="spatial-grid"><section id="workflowCore" class="workflow-core spatial-core"><!-- 11DZ_CORE_START:commerce-service-flows-shopping-cart --><div class="cart"><section class="cart-items panel"><span class="eyebrow">Order Configuration</span><h2>Shopping Cart Calculator</h2><article data-product data-price="28"><div><b>Care Visit Overview</b><small>¥28 / item</small></div><div class="quantity"><button type="button" aria-label="Reduce Care Visit Overview" data-delta="-1" data-core-bridge="commerce-service-flows-shopping-cart">−</button><output>1</output><button type="button" aria-label="Add care visit overview" data-delta="1">＋</button></div></article><article data-product data-price="45"><div><b>Care Visit Plan</b><small>¥45 / item</small></div><div class="quantity"><button type="button" aria-label="Reduce care visit plan" data-delta="-1">−</button><output>0</output><button type="button" aria-label="Add care visit plan" data-delta="1">＋</button></div></article><article data-product data-price="62"><div><b>Care Visit Inspiration</b><small>¥62 / item</small></div><div class="quantity"><button type="button" aria-label="Reduce Care Visit Inspiration" data-delta="-1">−</button><output>0</output><button type="button" aria-label="Care Visit Inspiration" data-delta="1">＋</button></div></article></section><aside class="receipt panel"><span>Estimated total</span><strong id="cartTotal" class="metric">¥0</strong><label>Promo code <input id="promoCode" autocomplete="off" placeholder="Enter SAVE10"></label><button id="applyPromo" class="action" type="button">Apply discount</button><button id="checkout" class="action primary" type="button">Confirm plan</button><small>This example does not send order or payment information.</small></aside></div><!-- 11DZ_CORE_END --></section><input id="workflowSpatialHandle" class="spatial-handle" type="button" value="↔" aria-label="Drag to adjust the main case preview width"><aside><strong>Care visit needs confirmation</strong><p>Care Visit Plan Selection and Final Submission will be rearranged according to canvas size.</p><output id="workflowSpatialStatus">Width 64%, zoom 100%</output><input id="workflowSpatialApply" class="action primary" type="button" value="Confirmation Flow"></aside></div></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-shopping-cart */
let discount = 0; const productRows = [...document.querySelectorAll('[data-product]')]; function renderTotal(){ const total = productRows.reduce((sum,row) => sum + Number(row.dataset.price) * Number(row.querySelector('output').textContent),0); const finalTotal = Math.round(total * (1 - discount)); document.querySelector('#cartTotal').textContent = '¥' + finalTotal; announce('Current total ' + finalTotal + ' yuan'); }
productRows.forEach(row => row.querySelectorAll('[data-delta]').forEach(button => button.addEventListener('click',() => { const output = row.querySelector('output'); output.textContent = Math.max(0,Number(output.textContent) + Number(button.dataset.delta)); renderTotal(); }))); document.querySelector('#applyPromo').addEventListener('click',() => { discount = document.querySelector('#promoCode').value.trim().toUpperCase() === 'SAVE10' ? .1 : 0; announce(discount ? 'Promo code applied' : 'Promo code invalid'); renderTotal(); }); document.querySelector('#checkout').addEventListener('click',() => announce('The care visit plan has been confirmed locally')); renderTotal();
/* 11DZ_CORE_SCRIPT_END */
const workflowBridgeSpec={"name":"commerce-service-flows-shopping-cart","selector":"[data-core-bridge=\"commerce-service-flows-shopping-cart\"]","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 workflowSpatial=document.querySelector('#workflowSpatial');const workflowSpatialCore=document.querySelector('#workflowCore');const workflowSpatialWidth=document.querySelector('#workflowSpatialWidth');const workflowSpatialZoom=document.querySelector('#workflowSpatialZoom');const workflowSpatialHandle=document.querySelector('#workflowSpatialHandle');const workflowSpatialState={width:64,zoom:1,dragging:false};function workflowSpatialDrive(){workflowSpatial.style.setProperty('--spatial-width',workflowSpatialState.width+'%');workflowSpatial.style.setProperty('--spatial-zoom',String(workflowSpatialState.zoom));workflowSpatialWidth.value=String(workflowSpatialState.width);workflowSpatialZoom.value=String(Math.round(workflowSpatialState.zoom*100));document.querySelector('#workflowSpatialWidthValue').textContent=workflowSpatialState.width+'%';document.querySelector('#workflowSpatialZoomValue').textContent=Math.round(workflowSpatialState.zoom*100)+'%';document.querySelector('#workflowSpatialStatus').textContent='width '+workflowSpatialState.width+'%, zoom '+Math.round(workflowSpatialState.zoom*100)+'%';announce('Care Visit Canvas Reflowed');}workflowSpatialWidth.addEventListener('input',()=>{workflowSpatialState.width=Number(workflowSpatialWidth.value);workflowSpatialDrive();});workflowSpatialZoom.addEventListener('input',()=>{workflowSpatialState.zoom=Number(workflowSpatialZoom.value)/100;workflowSpatialDrive();});workflowSpatialHandle.addEventListener('pointerdown',event=>{workflowSpatialState.dragging=true;workflowSpatialHandle.setPointerCapture(event.pointerId);});workflowSpatialHandle.addEventListener('pointermove',event=>{if(!workflowSpatialState.dragging)return;const rect=workflowSpatial.getBoundingClientRect();workflowSpatialState.width=Math.max(38,Math.min(82,Math.round((event.clientX-rect.left)/rect.width*100)));workflowSpatialDrive();});workflowSpatialHandle.addEventListener('pointerup',event=>{workflowSpatialState.dragging=false;workflowSpatialHandle.releasePointerCapture(event.pointerId);});workflowSpatialHandle.addEventListener('wheel',event=>{event.preventDefault();workflowSpatialState.zoom=Math.max(.8,Math.min(1.2,workflowSpatialState.zoom+(event.deltaY<0?.05:-.05)));workflowSpatialDrive();},{passive:false});workflowSpatialHandle.addEventListener('keydown',event=>{if(!['ArrowLeft','ArrowRight'].includes(event.key))return;event.preventDefault();workflowSpatialState.width=Math.max(38,Math.min(82,workflowSpatialState.width+(event.key==='ArrowRight'?2:-2)));workflowSpatialDrive();});document.querySelector('#workflowSpatialApply').addEventListener('click',()=>{const bridge=workflowBridgeActivate();document.querySelector('#workflowSpatialStatus').textContent='Confirmed flow · width '+workflowSpatialState.width+'%, zoom '+Math.round(workflowSpatialState.zoom*100)+'% · '+bridge.summary;announce(document.querySelector('#workflowSpatialStatus').textContent);});workflowSpatialDrive();
workflowBridgeReset();
</script>
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