Model canvas references, script nodes and agent task snapshots

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

@@ -2,17 +2,15 @@ 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,Sun,Moon} 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;width?:number;height?:number};
-type Doc={version:1;cards:Card[];links:[string,string][]};
+import {parseCanvasDocument,type CanvasNode as Card,type CanvasDocument as Doc} from '../../lib/canvas-document';
 const example: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 initial:Doc={version:1,cards:[],links:[]};
 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.width===undefined||(Number.isFinite(c.width)&&c.width>=260&&c.width<=1200))&&(c.height===undefined||(Number.isFinite(c.height)&&c.height>=300&&c.height<=1200))&&(!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(''),[menu,setMenu]=useState<{x:number;y:number}|null>(null),[theme,setTheme]=useState<'light'|'dark'>('dark'),[editing,setEditing]=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;resize?:boolean}|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')}try{const v=JSON.parse(localStorage.getItem(key+'.view')||'null');if(v&&Number.isFinite(v.zoom)&&v.zoom>=.2&&v.zoom<=2&&Number.isFinite(v.x)&&Number.isFinite(v.y)){setZoom(v.zoom);setPan({x:v.x,y:v.y})}}catch{}try{const t=localStorage.getItem(key+'.theme');setTheme(t==='light'?'light':'dark')}catch{}setReady(true);fetch('/api/account/session').then(r=>r.ok?r.json():null).then(d=>setEmail(d?.user?.email||'')).catch(()=>{});},[]);
+ useEffect(()=>{try{const raw=localStorage.getItem(key);if(raw){const d=parseCanvasDocument(raw);setDoc(d);setStatus('已恢复本机草稿')}}catch{setStatus('草稿读取失败，可导入 JSON 恢复')}try{const v=JSON.parse(localStorage.getItem(key+'.view')||'null');if(v&&Number.isFinite(v.zoom)&&v.zoom>=.2&&v.zoom<=2&&Number.isFinite(v.x)&&Number.isFinite(v.y)){setZoom(v.zoom);setPan({x:v.x,y:v.y})}}catch{}try{const t=localStorage.getItem(key+'.theme');setTheme(t==='light'?'light':'dark')}catch{}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]);
  useEffect(()=>{if(ready)try{localStorage.setItem(key+'.view',JSON.stringify({...pan,zoom}))}catch{}},[pan,zoom,ready]);
  useEffect(()=>{const el=viewport.current;if(!el)return;const block=(e:WheelEvent)=>{if(!(e.target as HTMLElement).closest('textarea,input,select'))e.preventDefault()};el.addEventListener('wheel',block,{passive:false});return()=>el.removeEventListener('wheel',block)},[]);
@@ -38,6 +36,6 @@ export default function InfiniteCanvas(){
  </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={()=>scaleAt(zoom-.1)}><Minus size={16}/></button><span>{Math.round(zoom*100)}%</span><button aria-label="放大" onClick={()=>scaleAt(zoom+.1)}><Plus size={16}/></button><button aria-label="适应画布" onClick={fit}><Maximize size={16}/></button></div></div></section>
  {menu&&<div className={s.contextMenu} role="dialog" aria-label="画布操作" style={{left:Math.max(8,menu.x),top:Math.max(8,menu.y)}}><div className={s.menuTitle}>{active?active.title:'添加到画布'}<button aria-label="关闭画布操作" onClick={()=>setMenu(null)}>×</button></div>{active?<><button onClick={duplicate}>复制节点</button><button onClick={()=>{commit({...doc,cards:doc.cards.filter(c=>c.id!==selected),links:doc.links.filter(l=>!l.includes(selected))});select('');setMenu(null)}}>删除节点</button><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 disabled={!link} onClick={()=>{if(!doc.links.some(l=>l[0]===selected&&l[1]===link))commit({...doc,links:[...doc.links,[selected,link]]});setLink('')}}>连接节点</button>{doc.links.filter(l=>l.includes(selected)).map(([a,b])=><button key={a+b} onClick={()=>commit({...doc,links:doc.links.filter(l=>l[0]!==a||l[1]!==b)})}>断开：{doc.cards.find(c=>c.id===(a===selected?b:a))?.title}</button>)}</>:<><button onClick={()=>{add('text');setMenu(null)}}>添加笔记</button><button onClick={()=>{add('image');setMenu(null)}}>添加图片</button><button onClick={()=>{add('prompt');setMenu(null)}}>添加提示词</button></>}</div>}</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')}}}/>
+ <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=parseCanvasDocument(await f.text());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>;
 }