Add infinite canvas workspace with local drafts and connected nodes

apps/studio/scripts/infinite-canvas-smoke.cjs

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+// Run against an already started Studio. BASE_URL is the origin, including port.
+const {chromium}=require('playwright-core');
+const assert=require('node:assert/strict');
+(async()=>{const browser=await chromium.launch({channel:'chrome',headless:true});try{const page=await browser.newPage({viewport:{width:1440,height:1000}});const errors=[];page.on('pageerror',e=>errors.push(e.message));await page.goto((process.env.BASE_URL||'http://localhost:3018')+'/studio/infinite_canvas');await page.getByRole('heading',{name:'无限画布 / Infinite canvas'}).waitFor();assert.equal(await page.locator('article').count(),3);await page.getByRole('button',{name:'添加笔记',exact:true}).click();assert.equal(await page.locator('article').count(),4);await page.getByLabel('节点名称').fill('Smoke note');await page.getByLabel('笔记内容').fill('A saved idea');await page.reload();await page.getByText('Smoke note',{exact:true}).first().waitFor();assert.equal(await page.locator('article').count(),4);await page.getByText('Smoke note',{exact:true}).first().click();await page.getByRole('button',{name:'删除节点',exact:true}).click();assert.equal(await page.locator('article').count(),3);await page.getByRole('button',{name:'撤销',exact:true}).click();assert.equal(await page.locator('article').count(),4);await page.getByRole('button',{name:'适应画布'}).click();const card=page.locator('article').last();const before=await card.getAttribute('style');const box=await card.locator('div').first().boundingBox();await page.mouse.move(box.x+70,box.y+20);await page.mouse.down();await page.mouse.move(box.x+120,box.y+45,{steps:5});await page.mouse.up();assert.notEqual(await card.getAttribute('style'),before);const download=page.waitForEvent('download');await page.getByRole('button',{name:'导出项目'}).click();assert.equal((await download).suggestedFilename(),'studio-canvas.json');if(process.env.SCREENSHOT_DIR)await page.screenshot({path:process.env.SCREENSHOT_DIR+'/canvas-desktop.png'});await page.setViewportSize({width:390,height:844});assert.ok(await page.evaluate(()=>document.documentElement.scrollWidth<=innerWidth));if(process.env.SCREENSHOT_DIR)await page.screenshot({path:process.env.SCREENSHOT_DIR+'/canvas-mobile.png',fullPage:true});assert.deepEqual(errors,[]);console.log('Canvas browser smoke passed: create, edit, restore, delete, undo, fit, export, mobile.')}finally{await browser.close()}})().catch(e=>{console.error(e);process.exitCode=1});

apps/studio/src/pages/infinite_canvas/index.tsx

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+import Head from 'next/head';
+import {useEffect,useRef,useState} from 'react';
+import {ArrowLeft,Plus,MousePointer2,Hand,ImagePlus,Type,Workflow,Undo2,Redo2,Minus,Maximize,Download,Upload,Trash2,Link2,Sparkles,ChevronRight} from 'lucide-react';
+import s from '../../styles/infinite-canvas.module.css';
+type Card={id:string;kind:'text'|'image'|'prompt';title:string;text:string;x:number;y:number;image?:string};
+type Doc={version:1;cards:Card[];links:[string,string][]};
+const initial:Doc={version:1,cards:[{id:'brief',kind:'text',title:'01 / 创意简报',text:'把日常，拍成一场电影。\n\n一段关于城市清晨的视觉散文。低饱和色彩、自然光与细腻颗粒，让每一帧都有呼吸感。',x:70,y:140},{id:'reference',kind:'image',title:'02 / 视觉参考',text:'晨光 · 建筑 · 胶片质感\n上传你的参考图片',x:460,y:80},{id:'shot',kind:'prompt',title:'03 / 镜头构思',text:'清晨，阳光穿过窗边的植物，落在安静的房间里。缓慢推进镜头，35mm 胶片，温暖柔和的光线。',x:850,y:160}],links:[['brief','reference'],['reference','shot']]};
+const key='studio.infinite-canvas.v1';
+function valid(v:unknown):v is Doc{const d=v as Doc;return !!d&&d.version===1&&Array.isArray(d.cards)&&d.cards.length<=80&&d.cards.every(c=>c&&typeof c.id==='string'&&c.id.length<100&&['text','image','prompt'].includes(c.kind)&&typeof c.title==='string'&&c.title.length<=200&&typeof c.text==='string'&&c.text.length<=10000&&Number.isFinite(c.x)&&Number.isFinite(c.y)&&Math.abs(c.x)<100000&&Math.abs(c.y)<100000&&(!c.image||(/^data:image\/(png|jpeg|webp);base64,/.test(c.image)&&c.image.length<3000000)))&&new Set(d.cards.map(c=>c.id)).size===d.cards.length&&Array.isArray(d.links)&&d.links.length<=200&&d.links.every(l=>Array.isArray(l)&&l.length===2&&l[0]!==l[1]&&l.every(id=>d.cards.some(c=>c.id===id)));}
+export default function InfiniteCanvas(){
+ const [doc,setDoc]=useState<Doc>(initial),[selected,select]=useState('shot'),[zoom,setZoom]=useState(.8),[pan,setPan]=useState({x:0,y:0}),[tool,setTool]=useState('select'),[past,setPast]=useState<Doc[]>([]),[future,setFuture]=useState<Doc[]>([]),[status,setStatus]=useState('示例项目 · 尚未保存'),[ready,setReady]=useState(false),[email,setEmail]=useState(''),[link,setLink]=useState('');
+ const file=useRef<HTMLInputElement>(null),json=useRef<HTMLInputElement>(null),viewport=useRef<HTMLDivElement>(null),drag=useRef<{id:string;x:number;y:number;ox:number;oy:number;before:Doc}|null>(null);
+ const active=doc.cards.find(c=>c.id===selected);
+ useEffect(()=>{try{const raw=localStorage.getItem(key);if(raw){const d=JSON.parse(raw);if(valid(d)){setDoc(d);setStatus('已恢复本机草稿')}}}catch{setStatus('草稿读取失败，可导入 JSON 恢复')}setReady(true);fetch('/api/account/session').then(r=>r.ok?r.json():null).then(d=>setEmail(d?.user?.email||'')).catch(()=>{});},[]);
+ useEffect(()=>{if(!ready)return;try{localStorage.setItem(key,JSON.stringify(doc));setStatus('已保存到此浏览器')}catch{setStatus('本机空间不足，请导出项目备份')}},[doc,ready]);
+ function commit(next:Doc){setPast(p=>[...p.slice(-29),doc]);setFuture([]);setDoc(next)}
+ function add(kind:Card['kind'],image?:string){if(doc.cards.length>=80){setStatus('最多 80 个节点');return}const id=Array.from(crypto.getRandomValues(new Uint8Array(16)),b=>b.toString(16).padStart(2,'0')).join('');const rect=viewport.current?.getBoundingClientRect();commit({...doc,cards:[...doc.cards,{id,kind,title:kind==='text'?'灵感笔记':kind==='image'?'参考素材':'生成提示词',text:'',x:((rect?.width||700)/2-pan.x)/zoom-160,y:(160-pan.y)/zoom,image}]});select(id)}
+ function change(field:'title'|'text',value:string){commit({...doc,cards:doc.cards.map(c=>c.id===selected?{...c,[field]:value}:c)})}
+ function undo(){if(!past.length)return;setFuture(f=>[doc,...f]);setDoc(past[past.length-1]);setPast(p=>p.slice(0,-1))}
+ function redo(){if(!future.length)return;setPast(p=>[...p,doc]);setDoc(future[0]);setFuture(f=>f.slice(1))}
+ function fit(){const el=viewport.current;if(!el||!doc.cards.length)return;const minX=Math.min(...doc.cards.map(c=>c.x)),minY=Math.min(...doc.cards.map(c=>c.y));const w=Math.max(...doc.cards.map(c=>c.x+320))-minX,h=Math.max(...doc.cards.map(c=>c.y+350))-minY;const z=Math.max(.2,Math.min(1,(el.clientWidth-80)/w,(el.clientHeight-100)/h));setZoom(z);setPan({x:(el.clientWidth-w*z)/2-minX*z,y:(el.clientHeight-h*z)/2-minY*z})}
+ function exportDoc(){const url=URL.createObjectURL(new Blob([JSON.stringify(doc,null,2)],{type:'application/json'}));const a=document.createElement('a');a.href=url;a.download='studio-canvas.json';a.click();setTimeout(()=>URL.revokeObjectURL(url),1000)}
+ return <main className={s.app}><Head><title>无限画布 · Studio</title><meta name="description" content="在无限画布上组织灵感、参考素材与镜头提示词"/></Head>
+ <header className={s.header}><a href="/studio" className={s.back} aria-label="返回 Studio"><ArrowLeft size={18}/></a><a href="/studio" className={s.brand}>STUDIO<span>✳</span></a><i/><span className={s.crumb}>工作空间 <ChevronRight size={13}/></span><strong>未命名的灵感宇宙</strong><span className={s.badge}>本机草稿</span><div className={s.spacer}/><a href="/account">{email||'登录账户'}</a><button className={s.export} onClick={exportDoc}><Download size={15}/>导出项目</button></header>
+ <div className={s.workspace}><nav className={s.rail} aria-label="画布工具"><button title="选择工具" aria-label="选择工具" aria-pressed={tool==='select'} onClick={()=>setTool('select')}><MousePointer2/></button><button title="移动画布" aria-label="移动画布" aria-pressed={tool==='hand'} onClick={()=>setTool('hand')}><Hand/></button><hr/><button title="添加笔记" aria-label="添加笔记" onClick={()=>add('text')}><Type/></button><button title="上传图片" aria-label="上传图片" onClick={()=>file.current?.click()}><ImagePlus/></button><button title="添加提示词" aria-label="添加提示词" onClick={()=>add('prompt')}><Sparkles/></button><button title="导入项目" aria-label="导入项目" onClick={()=>json.current?.click()}><Upload/></button><div className={s.spacer}/><span>∞</span></nav>
+ <section className={s.canvasArea}><div className={s.canvasTitle}><span className={s.eyebrow}>YOUR IDEAS, CONNECTED</span><h1>无限画布<span> / Infinite canvas</span></h1><p>从一个灵感，连接所有可能。</p></div>
+ <div className={s.viewport} ref={viewport} onWheel={e=>{if(e.ctrlKey||e.metaKey){setZoom(z=>Math.max(.2,Math.min(2,z-e.deltaY*.002)))}else setPan(p=>({x:p.x-e.deltaX,y:p.y-e.deltaY}))}} onPointerDown={e=>{if(e.target===e.currentTarget||tool==='hand'){e.currentTarget.setPointerCapture(e.pointerId);drag.current={id:'pan',x:e.clientX,y:e.clientY,ox:pan.x,oy:pan.y,before:doc}}}} onPointerMove={e=>{const d=drag.current;if(!d)return;if(d.id==='pan')setPan({x:d.ox+e.clientX-d.x,y:d.oy+e.clientY-d.y});else setDoc({...d.before,cards:d.before.cards.map(c=>c.id===d.id?{...c,x:d.ox+(e.clientX-d.x)/zoom,y:d.oy+(e.clientY-d.y)/zoom}:c)})}} onPointerUp={()=>{const d=drag.current;if(d&&d.id!=='pan'){setPast(p=>[...p.slice(-29),d.before]);setFuture([])}drag.current=null}} onPointerCancel={()=>{drag.current=null}}>
+ <div className={s.world} style={{transform:`translate(${pan.x}px,${pan.y}px) scale(${zoom})`}}><svg className={s.wires} aria-hidden="true">{doc.links.map(([a,b])=>{const from=doc.cards.find(c=>c.id===a),to=doc.cards.find(c=>c.id===b);if(!from||!to)return null;return <path key={a+b} d={`M ${from.x+320} ${from.y+150} C ${from.x+365} ${from.y+150},${to.x-45} ${to.y+150},${to.x} ${to.y+150}`}/>})}</svg>
+ {doc.cards.map(c=><article key={c.id} className={`${s.card} ${selected===c.id?s.selected:''}`} style={{left:c.x,top:c.y}} onClick={()=>select(c.id)}><div className={s.cardHead} onPointerDown={e=>{if(tool==='hand')return;e.stopPropagation();viewport.current?.setPointerCapture(e.pointerId);select(c.id);drag.current={id:c.id,x:e.clientX,y:e.clientY,ox:c.x,oy:c.y,before:doc}}}><span>{c.kind==='text'?<Type size={15}/>:c.kind==='image'?<ImagePlus size={15}/>:<Sparkles size={15}/>} {c.title}</span><span>⠿</span></div>{c.kind==='image'?<div className={s.image} onClick={()=>{select(c.id);file.current?.click()}}>{c.image?<img src={c.image} alt={c.title}/>:<><div className={s.landscape}><span>REF.</span><b>光的形状</b><small>LIGHT / SPACE / EMOTION</small></div><span className={s.sample}>示例占位 · 点击上传参考图</span></>}</div>:<div className={s.cardBody}><span className={s.nodeType}>{c.kind==='prompt'?'PROMPT / 提示词':'NOTE / 灵感笔记'}</span><p>{c.text||'选择节点，在右侧写下你的想法。'}</p></div>}{c.kind==='prompt'&&<div className={s.disconnected}>○ 模型服务未接入 · 仅编辑提示词</div>}<footer>{c.kind==='image'?'视觉素材':c.kind==='prompt'?'镜头设计':'创作起点'}<span className={s.port}/></footer></article>)}
+ </div></div><div className={s.canvasBottom}><span role="status">● {status}</span><div className={s.controls}><button aria-label="撤销" disabled={!past.length} onClick={undo}><Undo2 size={16}/></button><button aria-label="重做" disabled={!future.length} onClick={redo}><Redo2 size={16}/></button><i/><button aria-label="缩小" onClick={()=>setZoom(z=>Math.max(.2,z-.1))}><Minus size={16}/></button><span>{Math.round(zoom*100)}%</span><button aria-label="放大" onClick={()=>setZoom(z=>Math.min(2,z+.1))}><Plus size={16}/></button><button aria-label="适应画布" onClick={fit}><Maximize size={16}/></button></div></div></section>
+ <aside className={s.inspector}><div className={s.panelHeading}><Workflow size={17}/><strong>节点属性</strong><span>{doc.cards.length} 个节点</span></div>{active?<><span className={s.eyebrow}>INSPECTOR</span><h2>{active.kind==='prompt'?'把想法描述清楚':active.kind==='image'?'让参考彼此连接':'记录灵感的起点'}</h2><label>节点名称<input maxLength={200} value={active.title} onChange={e=>change('title',e.target.value)}/></label><label>{active.kind==='prompt'?'画面描述':'笔记内容'}<textarea maxLength={10000} value={active.text} onChange={e=>change('text',e.target.value)} placeholder="写下你的创作想法…"/></label>{active.kind==='image'&&<button className={s.wide} onClick={()=>file.current?.click()}><ImagePlus size={16}/>选择参考图片</button>}{active.kind==='prompt'&&<div className={s.notice}><Sparkles size={18}/><strong>为下一次创作做好准备</strong><p>提示词可保存在项目中。当前没有连接模型服务，暂不支持 AI 图片或视频生成。</p></div>}<label>连接到<select value={link} onChange={e=>setLink(e.target.value)}><option value="">选择目标节点</option>{doc.cards.filter(c=>c.id!==selected).map(c=><option key={c.id} value={c.id}>{c.title}</option>)}</select></label><button className={s.wide} disabled={!link} onClick={()=>{if(!doc.links.some(l=>l[0]===selected&&l[1]===link))commit({...doc,links:[...doc.links,[selected,link]]});setLink('')}}><Link2 size={16}/>连接节点</button>{doc.links.filter(l=>l.includes(selected)).map(([a,b])=><button className={s.connection} key={a+b} onClick={()=>commit({...doc,links:doc.links.filter(l=>l[0]!==a||l[1]!==b)})}>↗ {doc.cards.find(c=>c.id===(a===selected?b:a))?.title} <span>断开 ×</span></button>)}<button className={s.delete} onClick={()=>{commit({...doc,cards:doc.cards.filter(c=>c.id!==selected),links:doc.links.filter(l=>!l.includes(selected))});select('')}}><Trash2 size={15}/>删除节点</button></>:<><h2>给灵感留一点空间</h2><p>选择画布中的节点来编辑，或从左侧添加新内容。</p><button className={s.wide} onClick={()=>add('text')}><Plus size={16}/>添加笔记</button></>}<div className={s.help}>拖动节点标题移动节点<br/>滚轮平移 · Ctrl / ⌘ + 滚轮缩放<br/>草稿仅存于当前浏览器，请及时导出。</div></aside></div>
+ <input hidden ref={file} type="file" accept="image/png,image/jpeg,image/webp" onChange={async e=>{const f=e.target.files?.[0];e.target.value='';if(!f)return;if(!['image/png','image/jpeg','image/webp'].includes(f.type)||f.size>2000000){setStatus('请选择 2MB 以内的 PNG、JPEG 或 WebP');return}const reader=new FileReader();reader.onload=()=>{const image=String(reader.result);if(active?.kind==='image')commit({...doc,cards:doc.cards.map(c=>c.id===selected?{...c,image}:c)});else add('image',image)};reader.readAsDataURL(f)}}/>
+ <input hidden ref={json} type="file" accept="application/json,.json" onChange={async e=>{const f=e.target.files?.[0];e.target.value='';if(!f)return;try{if(f.size>15000000)throw Error();const d=JSON.parse(await f.text());if(!valid(d))throw Error();commit(d);select(d.cards[0]?.id||'');setPan({x:0,y:0});setStatus('项目已导入')}catch{setStatus('无法导入：项目格式错误或文件过大')}}}/>
+ </main>;
+}

docs/plans/infinite-canvas.md

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+# Infinite canvas plan
+
+Scope: only /studio/infinite_canvas, its CSS module, browser interaction checks. Based on main f490543 in isolated worktree. No homepage, graphic, shared authentication or deployment changes.
+
+## Research before implementation
+- Baseline server screenshot captured 2026-10-29: existing server requires dynamic-code authentication before route access. Do not bypass it.
+- Internet image search: AI infinite canvas ComfyUI RunningHub interface; reviewed workflow canvas and media card arrangements. No unlicensed product screenshots copied into product.
+- https://jimeng.jianying.com — prompt-driven creation, image references, canvas.
+- https://klingai.com — attempted primary source; robots denied access. No unsupported detailed claims.
+- https://hailuoai.video — reference input and media-first exploration.
+- https://www.liblib.art and https://www.liblib.tv — Liblib/LibTV reference targets; client-rendered content limits source inspection.
+- https://docs.comfy.org/interface/overview — explicit node workflow and workspace regions.
+- https://www.runninghub.cn — canvas-oriented creation and reusable workflows.
+- https://github.com/bergside/awesome-design-skills — reference catalogue; apply deliberate typography, spacing, accessible controls and consistent hierarchy, without installing external skills.
+
+## Design and behavior
+Dark graphite creation desk with warm lime accent. Narrow left tool rail, large dotted canvas, editable right inspector and floating zoom controls. Start with a clearly labelled sample storyboard: brief → reference → shot plan. Native drag and zoom, selection, editable text/prompt cards, image upload, visible links, add/delete, undo/redo, fit view. Persist bounded browser-local drafts and export/import portable JSON. Images remain local. No simulated generation; generation cards explicitly say model service is not connected. Account link uses existing /account and GET /api/account/session contract.
+
+## Validation
+Local TypeScript and existing tests; local build explicitly authorized for this task. Browser checks for desktop/mobile, creation, drag, undo, reload, JSON export and disconnected AI notice. Clean owned screenshots, build directories and temporary dependency links before delivery. Push branch and open PR against main; no merge or deployment.
+
+## Results
+TypeScript passed; existing 10 tests passed. Project-local Next CLI webpack build passed. Default Turbopack cannot resolve dependencies outside isolated worktree; webpack standalone tracing warns about the temporary dependency symlinks, so deployment artifact completeness is not claimed. Browser smoke passed on desktop and mobile. No deployment performed.