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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,initial-scale=1"> <title>Node Image Processor</title> <script src="https://cdn.jsdelivr.net/pyodide/v0.29.3/full/pyodide.js"></script> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.16/codemirror.min.css"> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.16/theme/material-darker.min.css"> <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.16/codemirror.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.16/mode/python/python.min.js"></script> <style> *,*::before,*::after{box-sizing:border-box;margin:0;padding:0} :root{ --bg:#0d1117;--surface:#161b22;--surface2:#1c2333;--surface3:#222d3d; --border:#30363d;--accent:#ff6b6b;--accent2:#4ecdc4;--text:#e6edf3; --muted:#8b949e;--success:#3fb950;--warning:#d29922;--danger:#f85149; --sidebar-w:clamp(160px,14vw,230px);--toolbar-h:2.5rem;--radius:.5rem; --font:.8125rem;--font-sm:.6875rem;--font-xs:.5625rem } html,body{width:100%;height:100%;overflow:hidden;font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);font-size:16px} #loader{position:fixed;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.875rem;background:var(--bg);color:var(--text);z-index:9999;transition:opacity .5s} #loader.done{opacity:0;pointer-events:none} .spinner{width:2.25rem;height:2.25rem;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite} @keyframes spin{to{transform:rotate(360deg)}} #ldMsg{font-size:var(--font);font-weight:700} #ldSub{font-size:var(--font-sm);color:var(--muted);max-width:25rem;text-align:center;line-height:1.4} #toast{position:fixed;bottom:1.5rem;left:50%;transform:translateX(-50%) translateY(4rem);padding:.5rem 1.375rem;border-radius:var(--radius);font-size:var(--font-sm);font-weight:700;z-index:10000;opacity:0;transition:transform .3s cubic-bezier(.4,0,.2,1),opacity .3s;pointer-events:none;white-space:nowrap} #toast.show{transform:translateX(-50%) translateY(0);opacity:1} #toast.ok{background:#0f2a1a;color:var(--success);border:1px solid #1a4028} #toast.err{background:#2a0f0f;color:var(--danger);border:1px solid #401a1a} #toast.inf{background:#0f1a2a;color:#58a6ff;border:1px solid #1a2840} #app{display:flex;width:100%;height:100%} /* SIDEBAR */ #sidebar{width:var(--sidebar-w);background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0;transition:width .2s} .sb-tabs{display:flex;border-bottom:1px solid var(--border);height:var(--toolbar-h);flex-shrink:0} .sb-tab{flex:1;display:flex;align-items:center;justify-content:center;font-size:var(--font-xs);font-weight:800;cursor:pointer;color:var(--muted);border-bottom:2px solid transparent;transition:all .15s;text-transform:uppercase;letter-spacing:.5px;padding:0 .5rem} .sb-tab.on{color:var(--accent);border-color:var(--accent)} .sb-tab:hover:not(.on){color:var(--text)} .sb-content{flex:1;overflow-y:auto;display:none} .sb-content.on{display:flex;flex-direction:column} .sb-title{padding:.625rem .875rem .25rem;font-size:var(--font-xs);text-transform:uppercase;color:var(--muted);letter-spacing:1px;font-weight:800} .sb-item{padding:.375rem .75rem;cursor:grab;border-radius:4px;margin:1px .375rem;display:flex;align-items:center;gap:.5rem;font-size:var(--font-sm);transition:background .1s;user-select:none} .sb-item:hover{background:rgba(255,255,255,.05)} .sb-item:active{cursor:grabbing;opacity:.7} .sb-dot{width:.5rem;height:.5rem;border-radius:2px;flex-shrink:0} .sb-wf-item{padding:.4375rem .75rem;cursor:pointer;border-radius:4px;margin:2px .375rem;display:flex;justify-content:space-between;align-items:center;font-size:var(--font-sm);transition:background .1s} .sb-wf-item:hover{background:rgba(255,255,255,.05)} .sb-wf-del{color:var(--muted);cursor:pointer;font-weight:700;font-size:.8125rem;line-height:1} .sb-wf-del:hover{color:var(--danger)} .sb-empty{padding:1rem .75rem;font-size:var(--font-xs);color:#2a3040;text-align:center;font-style:italic} /* MAIN */ #main{flex:1;display:flex;flex-direction:column;overflow:hidden;min-width:0} #toolbar{height:var(--toolbar-h);background:var(--surface);border-bottom:1px solid var(--border);display:grid;grid-template-columns:1fr auto;align-items:center;flex-shrink:0;position:relative} #tabsScroll{overflow-x:auto;overflow-y:hidden;display:flex;align-items:center;gap:1px;padding:0 .5rem;height:100%;scrollbar-width:none} #tabsScroll::-webkit-scrollbar{display:none} .tab{padding:.3125rem .875rem;cursor:pointer;font-size:var(--font-sm);font-weight:700;border-radius:4px 4px 0 0;background:0;border:0;color:var(--muted);transition:all .12s;display:flex;align-items:center;gap:.375rem;white-space:nowrap;flex-shrink:0;height:100%;align-items:center} .tab.on{background:var(--surface2);color:var(--text)} .tab:hover:not(.on){color:var(--text)} .tab-close{font-size:.8125rem;line-height:1;opacity:.4;margin-left:.125rem;transition:opacity .1s} .tab-close:hover{opacity:1;color:var(--danger)} .tab-name{outline:none;border-bottom:1px dashed transparent;padding:0 .125rem;min-width:1.875rem} .tab-name:focus{border-color:var(--accent2)} .tb-right{display:flex;align-items:center;gap:.3125rem;padding:0 .625rem;height:100%;border-left:1px solid var(--border);flex-shrink:0} .tbtn{padding:.25rem .625rem;border-radius:4px;font-size:var(--font-xs);cursor:pointer;border:1px solid var(--border);font-weight:700;background:var(--surface2);color:var(--muted);transition:all .12s;white-space:nowrap} .tbtn:hover{color:var(--text);border-color:#484f58;background:var(--surface3)} .tbtn.run{background:var(--accent);color:#fff;border-color:var(--accent)} .tbtn.run:hover{background:#e55a5a} .tbtn.run:disabled{background:#1a1a1a;color:#444;border-color:#2a2a2a;cursor:not-allowed} #statusWrap{display:flex;align-items:center;gap:.3125rem;font-size:var(--font-xs);color:var(--muted);margin-left:.25rem} .sdot{width:.375rem;height:.375rem;border-radius:50%;background:var(--muted);flex-shrink:0} .sdot.ok{background:var(--success);box-shadow:0 0 6px rgba(63,185,80,.5)} .sdot.load{background:var(--warning);animation:bk 1s infinite} @keyframes bk{0%,100%{opacity:1}50%{opacity:.2}} /* SETTINGS */ #settingsPanel{position:absolute;top:var(--toolbar-h);right:.625rem;background:var(--surface2);border:1px solid var(--border);border-radius:8px;z-index:200;min-width:13.75rem;box-shadow:0 .5rem 2rem rgba(0,0,0,.5);display:none;overflow:hidden} #settingsPanel.open{display:block} .sp-head{padding:.625rem .875rem;font-size:var(--font-sm);font-weight:800;color:var(--accent);border-bottom:1px solid var(--border);background:rgba(255,107,107,.04)} .sp-body{padding:.5rem .875rem .75rem} .sp-row{display:flex;justify-content:space-between;align-items:center;font-size:var(--font-sm);padding:.375rem 0;border-bottom:1px solid rgba(48,54,61,.4)} .sp-row:last-child{border-bottom:none} .sp-row label{color:var(--text);font-size:var(--font-xs)} .sp-row input[type=checkbox]{accent-color:var(--accent);width:.9375rem;height:.9375rem;cursor:pointer} .sp-row select,.sp-row input[type=text],.sp-row input[type=number]{background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:3px;padding:.1875rem .375rem;font-size:var(--font-xs);outline:none;cursor:pointer;max-width:8rem} .sp-row .tbtn{padding:.1875rem .625rem} .sp-row .zoom-row{display:flex;align-items:center;gap:.25rem} .sp-row .zoom-row .zbtn{width:1.5rem;height:1.5rem;display:flex;align-items:center;justify-content:center;border-radius:3px;cursor:pointer;color:var(--muted);font-size:.875rem;font-weight:700;background:var(--bg);border:1px solid var(--border);transition:all .1s} .sp-row .zoom-row .zbtn:hover{color:var(--text);background:var(--surface3)} .sp-row .zoom-row .zoom-val{font-size:var(--font-xs);color:var(--text);font-weight:700;min-width:2.5rem;text-align:center;background:var(--bg);border:1px solid var(--border);border-radius:3px;padding:.1875rem .375rem;cursor:pointer} /* WORKSPACE */ #wfPanel{flex:1;position:relative;overflow:hidden} #wfC{width:100%;height:100%;position:relative;overflow:hidden;outline:none;cursor:default} #wfInner{position:absolute;top:0;left:0;width:0;height:0;transform-origin:0 0} #connCvs{position:absolute;inset:0;z-index:5;pointer-events:none} .wf-hint{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#161e2e;font-size:.8125rem;font-weight:800;letter-spacing:1.5px;text-transform:uppercase;pointer-events:none;z-index:0;user-select:none} /* MINIMAP */ #minimap{position:absolute;bottom:.75rem;right:.75rem;z-index:50;width:10.625rem;height:7.1875rem;background:rgba(22,27,34,.85);border:1px solid var(--border);border-radius:5px;overflow:hidden;cursor:pointer;backdrop-filter:blur(4px)} #minimap canvas{width:100%;height:100%;display:block} /* POPUPS */ .popup{position:absolute;background:var(--surface2);border:1px solid var(--border);border-radius:8px;padding:.25rem;z-index:300;min-width:10.625rem;box-shadow:0 .5rem 2rem rgba(0,0,0,.55);display:none} .ctx-item{padding:.375rem .625rem;font-size:var(--font-sm);cursor:pointer;border-radius:4px;display:flex;justify-content:space-between;align-items:center;transition:background .08s} .ctx-item:hover{background:rgba(255,255,255,.06)} .ctx-item.danger{color:var(--danger)} .ctx-sep{height:1px;background:var(--border);margin:.25rem .5rem} .ctx-label{padding:.25rem .625rem;font-size:var(--font-xs);color:var(--muted);font-weight:800;text-transform:uppercase;letter-spacing:.5px} .ctx-sub{font-size:var(--font-xs);color:var(--muted)} #searchMenu{width:13.75rem;padding:.375rem} #searchInput{width:100%;background:var(--bg);border:1px solid var(--border);color:var(--text);padding:.4375rem .625rem;border-radius:4px;font-size:var(--font-sm);outline:none} #searchInput:focus{border-color:var(--accent2)} .search-item{padding:.375rem .5rem;font-size:var(--font-sm);cursor:pointer;border-radius:4px;display:flex;align-items:center;gap:.4375rem;transition:background .08s} .search-item:hover{background:rgba(255,255,255,.06)} /* NODES */ .node{position:absolute;min-width:11.25rem;max-width:20rem;background:var(--surface2);border:2px solid var(--border);border-radius:8px;user-select:none;z-index:10;box-shadow:0 .25rem 1.5rem rgba(0,0,0,.35);display:flex;flex-direction:column;overflow:visible} .node.sel{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent),0 .25rem 1.5rem rgba(0,0,0,.4)} .node.running{border-color:var(--warning);animation:npulse 1s ease-in-out infinite} .node.done{border-color:var(--success);box-shadow:0 0 12px rgba(63,185,80,.2)} .node.err{border-color:var(--danger);box-shadow:0 0 12px rgba(248,81,73,.2)} .node.disabled{opacity:.45;filter:grayscale(.7)} @keyframes npulse{0%,100%{box-shadow:0 0 6px rgba(210,153,34,.1)}50%{box-shadow:0 0 24px rgba(210,153,34,.4)}} .nhdr{padding:.375rem .625rem;border-radius:6px 6px 0 0;font-size:var(--font-xs);font-weight:800;display:flex;align-items:center;justify-content:space-between;color:#fff;cursor:move;letter-spacing:.3px;flex-shrink:0;gap:.375rem} .nhdr-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap} .ndel{cursor:pointer;opacity:0;font-size:.9375rem;line-height:1;transition:opacity .1s;flex-shrink:0;width:1rem;text-align:center} .node:hover .ndel{opacity:.5} .ndel:hover{opacity:1!important} .nbody{padding:.3125rem 0 .4375rem;flex:1;overflow:visible} .npr{display:flex;align-items:center;padding:.125rem 0;font-size:var(--font-xs);color:var(--muted);position:relative} .npr.inp{justify-content:flex-start;padding-left:0} .npr.outp{justify-content:flex-end;padding-right:0} .port{width:.8125rem;height:.8125rem;border-radius:50%;border:2px solid var(--border);background:var(--bg);cursor:crosshair;transition:all .12s;flex-shrink:0;position:relative;z-index:20} .port:hover{transform:scale(1.5);border-color:var(--accent);background:rgba(255,107,107,.25);box-shadow:0 0 8px rgba(255,107,107,.3)} .port.conn{border-color:#5a6a8a;background:#3a4a6a} .npr.inp .port{margin-left:-.4375rem;margin-right:.375rem} .npr.outp .port{margin-right:-.4375rem;margin-left:.375rem} .plbl{font-weight:600;font-size:var(--font-xs)} .nfile{padding:.1875rem .625rem;font-size:var(--font-xs);display:flex;gap:.3125rem;align-items:center;flex-wrap:wrap} .nfile input[type=file]{display:none} .fbtn,.sbtn{display:inline-block;padding:.1875rem .5625rem;border-radius:3px;cursor:pointer;font-size:var(--font-xs);font-weight:700;transition:all .1s} .fbtn{background:var(--border);color:var(--text)}.fbtn:hover{background:#484f58} .sbtn{background:#0f2a2a;color:var(--accent2);border:1px solid rgba(78,205,196,.2)}.sbtn:hover{background:#1a3a3a} .nparam{padding:.125rem .625rem} .nparam label{font-size:var(--font-xs);color:var(--muted);display:flex;justify-content:space-between;margin-bottom:1px} .nparam input[type=range]{width:100%;accent-color:var(--accent);height:.25rem;cursor:pointer} .pv{font-size:var(--font-xs);color:var(--accent);font-weight:700;min-width:1.875rem;text-align:right} .nprev{margin:.25rem .5rem;border-radius:4px;overflow:hidden;background:#060a10;min-height:2rem;max-height:6.25rem;display:flex;align-items:center;justify-content:center} .nprev img{max-width:100%;max-height:5.75rem;display:block;object-fit:contain} .nprev .ph{color:#1a2030;font-size:var(--font-xs);padding:.625rem;text-align:center;font-style:italic} .nval-display{margin:.25rem .5rem;padding:.5rem;border-radius:4px;background:rgba(33,150,243,.1);border:1px solid rgba(33,150,243,.2);text-align:center;font-size:1.25rem;font-weight:800;color:#2196F3} .nres{position:absolute;bottom:0;right:0;width:.875rem;height:.875rem;cursor:nwse-resize;z-index:30;opacity:0;transition:opacity .15s} .node:hover .nres{opacity:.3} .nres:hover{opacity:.8!important} .nres::after{content:"";position:absolute;bottom:3px;right:3px;width:7px;height:7px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted)} /* RESPONSIVE */ @media(max-width:768px){ :root{--sidebar-w:0px} #sidebar{position:absolute;left:0;top:0;bottom:0;z-index:150;width:0;overflow:hidden;transition:width .2s} #sidebar.open{width:clamp(180px,60vw,260px)} #sidebarToggle{display:flex!important} #minimap{width:7rem;height:4.75rem} } #sidebarToggle{display:none;align-items:center;justify-content:center;width:2rem;height:2rem;cursor:pointer;color:var(--muted);font-size:1.125rem;border:0;background:0;border-radius:4px;transition:all .1s} #sidebarToggle:hover{color:var(--text);background:rgba(255,255,255,.05)} ::-webkit-scrollbar{width:5px} ::-webkit-scrollbar-track{background:transparent} ::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px} ::-webkit-scrollbar-thumb:hover{background:#484f58} </style> </head> <body> <div id="loader"><div class="spinner"></div><div id="ldMsg">Loading Pyodide runtime...</div><div id="ldSub"></div></div> <div id="toast"></div> <div id="app"> <div id="sidebar"> <div class="sb-tabs"> <div class="sb-tab on" data-sb="nodes">Nodes</div> <div class="sb-tab" data-sb="library">Library</div> </div> <div class="sb-content on" id="sbNodes"></div> <div class="sb-content" id="sbLibrary"> <div class="sb-title">Saved Workflows</div> <div id="wfList"><div class="sb-empty">No saved workflows yet</div></div> </div> </div> <div id="main"> <div id="toolbar"> <div style="display:flex;align-items:center"> <div id="sidebarToggle" onclick="document.getElementById('sidebar').classList.toggle('open')">&#9776;</div> <div id="tabsScroll"></div> </div> <div class="tb-right"> <button class="tbtn" id="btnAddTab" title="New tab">+</button> <div style="width:1px;height:1.125rem;background:var(--border)"></div> <button class="tbtn" id="btnSettings" title="Settings">&#9881;</button> <button class="tbtn" id="btnSave" title="Save">Save</button> <button class="tbtn" id="btnClear" title="Clear">Clear</button> <button class="tbtn run" id="btnRun" disabled>Run</button> <div id="statusWrap"><span class="sdot load" id="sDot"></span><span id="sTxt">Loading...</span></div> </div> <div id="settingsPanel"> <div class="sp-head">Settings</div> <div class="sp-body"> <div class="sp-row"><label>Force run all</label><input type="checkbox" id="forceRunCheck"></div> <div class="sp-row"><label>Grid size</label><select id="gridSizeSel"><option value="15">Tiny</option><option value="25" selected>Small</option><option value="40">Medium</option><option value="60">Large</option></select></div> <div class="sp-row"><label>Snap to grid</label><input type="checkbox" id="snapCheck"></div> <div class="sp-row"><label>Zoom</label> <div class="zoom-row"> <button class="zbtn" onclick="zoomStep(-1)" title="Zoom out">&minus;</button> <span class="zoom-val" id="zoomPct" onclick="this.focus()" onkeydown="if(event.key==='Enter'){setZoomPct(this);event.preventDefault()}" onblur="setZoomPct(this)">100%</span> <button class="zbtn" onclick="zoomStep(1)" title="Zoom in">+</button> </div> </div> <div class="sp-row"><label>Reset view</label><button class="tbtn" onclick="resetZoom()">Reset</button></div> <div class="sp-row"><label>Fit all nodes</label><button class="tbtn" onclick="fitAll()">Fit</button></div> </div> </div> </div> <div id="wfPanel"> <div id="wfC" tabindex="0"> <div id="wfInner"></div> <canvas id="connCvs"></canvas> <div class="wf-hint" id="wfHint">Drag nodes here or double-click to add</div> </div> <div id="minimap" title="Click to navigate"><canvas id="minimapCvs"></canvas></div> <div class="popup" id="ctxMenu"></div> <div class="popup" id="searchMenu"><input type="text" id="searchInput" placeholder="Search nodes..."><div id="searchResults"></div></div> </div> </div> </div> <script> /* ═══════════════════════════════════════════ PYTHON: Graph + Image Processing ═══════════════════════════════════════════ */ const PY_GRAPH = ` import json NODE_DEFS = { "image_input": {"name": "Image Input", "color": "#4CAF50", "ins": [], "outs": ["image"], "params": [], "file": True, "value_node": False}, "image_output": {"name": "Image Output", "color": "#FF5722", "ins": ["image"], "outs": [], "params": [], "file": False, "value_node": False}, "grayscale": {"name": "Grayscale", "color": "#607D8B", "ins": ["image"], "outs": ["image"], "params": [], "file": False, "value_node": False}, "gaussian_blur": {"name": "Gaussian Blur", "color": "#FF9800", "ins": ["image"], "outs": ["image"], "params": [{"id":"sigma","label":"Sigma","min":0.1,"max":10,"step":0.1,"def":1.5}], "file": False, "value_node": False}, "sobel": {"name": "Sobel Edge", "color": "#009688", "ins": ["image"], "outs": ["image"], "params": [], "file": False, "value_node": False}, "canny": {"name": "Canny Edge", "color": "#3F51B5", "ins": ["image"], "outs": ["image"], "params": [{"id":"sigma","label":"Sigma","min":0.1,"max":5,"step":0.1,"def":1.0},{"id":"low_t","label":"Low Thresh","min":0,"max":1,"step":0.01,"def":0.1},{"id":"high_t","label":"High Thresh","min":0,"max":1,"step":0.01,"def":0.3}], "file": False, "value_node": False}, "threshold": {"name": "Otsu Threshold","color": "#795548", "ins": ["image"], "outs": ["image"], "params": [], "file": False, "value_node": False}, "invert": {"name": "Invert", "color": "#E91E63", "ins": ["image"], "outs": ["image"], "params": [], "file": False, "value_node": False}, "contour": {"name": "Contour Detect","color": "#9C27B0", "ins": ["image"], "outs": ["image"], "params": [{"id":"level","label":"Level","min":0,"max":1,"step":0.01,"def":0.5}], "file": False, "value_node": False}, "rotate": {"name": "Rotate", "color": "#00BCD4", "ins": ["image"], "outs": ["image"], "params": [{"id":"angle","label":"Angle","min":-180,"max":180,"step":1,"def":90}], "file": False, "value_node": False}, "resize": {"name": "Resize", "color": "#8BC34A", "ins": ["image"], "outs": ["image"], "params": [{"id":"scale","label":"Scale","min":0.1,"max":3,"step":0.1,"def":0.5}], "file": False, "value_node": False}, "int_value": {"name": "Int Value", "color": "#2196F3", "ins": [], "outs": ["value"], "params": [{"id":"value","label":"Value","min":-9999,"max":9999,"step":1,"def":0}], "file": False, "value_node": True}, "float_value": {"name": "Float Value", "color": "#03A9F4", "ins": [], "outs": ["value"], "params": [{"id":"value","label":"Value","min":-9999,"max":9999,"step":0.01,"def":0.0}], "file": False, "value_node": True} } class WorkflowGraph: def __init__(self): self.nodes = {} self.edges = [] def add_node(self, nid, ntype): nid = int(nid) params = {p["id"]: p["def"] for p in NODE_DEFS.get(ntype, {}).get("params", [])} self.nodes[nid] = {"type": ntype, "params": params, "promoted": [], "disabled": False} return True def remove_node(self, nid): nid = int(nid) self.nodes.pop(nid, None) self.edges = [e for e in self.edges if int(e["fn"]) != nid and int(e["tn"]) != nid] def update_param(self, nid, pid, val): nid = int(nid) if nid in self.nodes: self.nodes[nid]["params"][pid] = val def toggle_disable(self, nid): nid = int(nid) if nid in self.nodes: self.nodes[nid]["disabled"] = not self.nodes[nid]["disabled"] return self.nodes[nid]["disabled"] return False def promote_param(self, nid, pid): nid = int(nid) node = self.nodes.get(nid) if node and pid in node.get("params",{}) and pid not in node.get("promoted",[]): node.setdefault("promoted",[]).append(pid) return True return False def demote_param(self, nid, pid): nid = int(nid) node = self.nodes.get(nid) if node and pid in node.get("promoted",[]): node["promoted"].remove(pid) return True return False def get_inputs(self, nid): nid = int(nid) node = self.nodes.get(nid) if not node: return [] base = list(NODE_DEFS.get(node["type"], {}).get("ins", [])) for p in node.get("promoted", []): base.append(p) return base def get_outs(self, nid): nid = int(nid) node = self.nodes.get(nid) if not node: return [] return list(NODE_DEFS.get(node["type"], {}).get("outs", [])) def is_value_node(self, nid): nid = int(nid) node = self.nodes.get(nid) if not node: return False return NODE_DEFS.get(node["type"], {}).get("value_node", False) def add_edge(self, fn, fp, tn, tp): fn, fp, tn, tp = int(fn), int(fp), int(tn), int(tp) if fn == tn: return False if self._would_cycle(fn, tn): return False self.edges = [e for e in self.edges if not (int(e["tn"]) == tn and int(e["tp"]) == tp)] self.edges.append({"fn": fn, "fp": fp, "tn": tn, "tp": tp}) return True def remove_edge(self, fn, fp, tn, tp): fn, fp, tn, tp = int(fn), int(fp), int(tn), int(tp) self.edges = [e for e in self.edges if not (int(e["fn"]) == fn and int(e["fp"]) == fp and int(e["tn"]) == tn and int(e["tp"]) == tp)] def _would_cycle(self, fn, tn): visited, stack = set(), [tn] while stack: cur = stack.pop() if cur == fn: return True if cur in visited: continue visited.add(cur) for e in self.edges: if int(e["fn"]) == cur: stack.append(int(e["tn"])) return False def topological_sort(self): int_nodes = {int(k) for k in self.nodes} in_deg = {nid: 0 for nid in int_nodes} adj = {nid: [] for nid in int_nodes} for e in self.edges: fn, tn = int(e["fn"]), int(e["tn"]) if fn in in_deg and tn in in_deg: in_deg[tn] += 1 adj[fn].append(tn) queue = [nid for nid, d in in_deg.items() if d == 0] order = [] while queue: nid = queue.pop(0) order.append(nid) for nb in adj.get(nid, []): in_deg[nb] -= 1 if in_deg[nb] == 0: queue.append(nb) return order if len(order) == len(int_nodes) else None def get_state(self): return {"nodes": self.nodes, "edges": self.edges} def load_state(self, state): self.nodes = {int(k): v for k, v in state.get("nodes", {}).items()} for v in self.nodes.values(): v.setdefault("promoted", []) v.setdefault("disabled", False) self.edges = state.get("edges", []) def clear(self): self.nodes = {} self.edges = [] graph = WorkflowGraph() `; const PY_PROCESSOR = ` import numpy as np import base64, io, json from PIL import Image def process_image(input_b64, operation, params_json): params = json.loads(params_json) img_data = base64.b64decode(input_b64) img = Image.open(io.BytesIO(img_data)).convert("RGBA") arr = np.array(img, dtype=np.float64) / 255.0 rgb = arr[:, :, :3] if operation == "grayscale": from skimage.color import rgb2gray result = rgb2gray(rgb) elif operation == "gaussian_blur": from skimage.filters import gaussian result = gaussian(rgb, sigma=params.get("sigma", 1.5), channel_axis=-1) elif operation == "sobel": from skimage.filters import sobel; from skimage.color import rgb2gray result = sobel(rgb2gray(rgb)) elif operation == "canny": from skimage.feature import canny; from skimage.color import rgb2gray g = rgb2gray(rgb) result = canny(g, sigma=params.get("sigma",1.0), low_threshold=params.get("low_t",0.1), high_threshold=params.get("high_t",0.3)).astype(np.float64) elif operation == "threshold": from skimage.filters import threshold_otsu; from skimage.color import rgb2gray g = rgb2gray(rgb) result = (g > threshold_otsu(g)).astype(np.float64) elif operation == "invert": result = 1.0 - rgb elif operation == "contour": from skimage.measure import find_contours; from skimage.color import rgb2gray g = rgb2gray(rgb) contours = find_contours(g, level=params.get("level", 0.5)) result = np.zeros_like(g) for c in contours: rr = np.clip(np.round(c[:,0]).astype(int), 0, result.shape[0]-1) cc = np.clip(np.round(c[:,1]).astype(int), 0, result.shape[1]-1) result[rr, cc] = 1.0 elif operation == "rotate": from skimage.transform import rotate as sk_rotate result = sk_rotate(rgb, angle=params.get("angle", 90), resize=True, channel_axis=-1) elif operation == "resize": from skimage.transform import resize as sk_resize s = params.get("scale", 0.5) nh, nw = max(1, int(rgb.shape[0]*s)), max(1, int(rgb.shape[1]*s)) result = sk_resize(rgb, (nh, nw), channel_axis=-1, anti_aliasing=True) else: result = rgb if result.ndim == 2: result = np.stack([result]*3, axis=-1) out = (np.clip(result, 0, 1) * 255).astype(np.uint8) alpha = np.full((*out.shape[:2], 1), 255, dtype=np.uint8) rgba = np.concatenate([out, alpha], axis=-1) buf = io.BytesIO() Image.fromarray(rgba, "RGBA").save(buf, format="PNG") return base64.b64encode(buf.getvalue()).decode("ascii") `; /* ═══════════════════════════════════════════ STATE & CONFIG ═══════════════════════════════════════════ */ let pyodide = null, pyReady = false; let nextNid = 1, mxZ = 10; let zoom = 1, panX = 0, panY = 0, gridSize = 25; const ZOOM_STEPS = [0.1,0.15,0.25,0.33,0.5,0.67,0.75,1,1.25,1.5,2,2.5,3,4]; let dragInfo = null, connInfo = null, tempEnd = null, panInfo = null; let workflows = [], activeWfId = null, wfCounter = 1; let nodeMeta = {}; const $ = s => document.querySelector(s); const $$ = s => document.querySelectorAll(s); const wfC = $('#wfC'), wfInner = $('#wfInner'); const cvs = $('#connCvs'), cx = cvs.getContext('2d'); const mmCvs = $('#minimapCvs'), mmCx = mmCvs.getContext('2d'); /* ═══════════════════════════════════════════ UTILITIES ═══════════════════════════════════════════ */ function toast(msg, type='inf') { const t = $('#toast'); t.textContent = msg; t.className = type + ' show'; clearTimeout(t._t); t._t = setTimeout(() => t.className = '', 2800); } function py(code) { return pyReady ? pyodide.runPython(code) : null; } function pyJson(code) { try { return JSON.parse(py(code)); } catch(e) { return null; } } function hashStr(s) { let h = 0; for (let i = 0; i < s.length; i++) h = (h << 5) - h + s.charCodeAt(i) | 0; return h; } function portCenter(el) { const cr = wfC.getBoundingClientRect(), pr = el.getBoundingClientRect(); return { x: pr.left + pr.width/2 - cr.left, y: pr.top + pr.height/2 - cr.top }; } function viewportCenter() { const r = wfC.getBoundingClientRect(); return { x: (r.width/2 - panX) / zoom, y: (r.height/2 - panY) / zoom }; } /* ═══════════════════════════════════════════ CANVAS / GRID / ZOOM ═══════════════════════════════════════════ */ function resizeCvs() { cvs.width = wfC.clientWidth; cvs.height = wfC.clientHeight; mmCvs.width = 170; mmCvs.height = 115; updateGrid(); drawConns(); drawMinimap(); } new ResizeObserver(resizeCvs).observe(wfC); function updateGrid() { const s = gridSize * zoom; const ox = ((panX % s) + s) % s, oy = ((panY % s) + s) % s; wfC.style.backgroundImage = 'radial-gradient(circle, rgba(48,54,61,0.55) 1px, transparent 1px)'; wfC.style.backgroundSize = s + 'px ' + s + 'px'; wfC.style.backgroundPosition = ox + 'px ' + oy + 'px'; } function applyTransform() { wfInner.style.transform = `translate(${panX}px,${panY}px) scale(${zoom})`; updateGrid(); drawConns(); drawMinimap(); updateZoomPct(); } function resetZoom() { zoom = 1; panX = 0; panY = 0; applyTransform(); } function zoomStep(dir) { const idx = ZOOM_STEPS.reduce((best, v, i) => Math.abs(v - zoom) < Math.abs(ZOOM_STEPS[best] - zoom) ? i : best, 0); const ni = Math.max(0, Math.min(ZOOM_STEPS.length - 1, idx + dir)); const nz = ZOOM_STEPS[ni]; const r = wfC.getBoundingClientRect(); const cx = r.width / 2, cy = r.height / 2; panX = cx - (cx - panX) * (nz / zoom); panY = cy - (cy - panY) * (nz / zoom); zoom = nz; applyTransform(); } function updateZoomPct() { $('#zoomPct').textContent = Math.round(zoom * 100) + '%'; } function setZoomPct(el) { const v = parseInt(el.textContent); if (!isNaN(v) && v > 0) { const nz = Math.max(0.1, Math.min(4, v / 100)); const r = wfC.getBoundingClientRect(); const cx = r.width/2, cy = r.height/2; panX = cx - (cx - panX) * (nz / zoom); panY = cy - (cy - panY) * (nz / zoom); zoom = nz; applyTransform(); } else updateZoomPct(); } function fitAll() { const keys = Object.keys(nodeMeta); if (!keys.length) { resetZoom(); return; } let x1=Infinity, y1=Infinity, x2=-Infinity, y2=-Infinity; keys.forEach(k => { const m = nodeMeta[k]; x1=Math.min(x1,m.x); y1=Math.min(y1,m.y); x2=Math.max(x2,m.x+m.w); y2=Math.max(y2,m.y+m.h); }); const pad = 60, cw = x2-x1+pad*2, ch = y2-y1+pad*2; const vw = wfC.clientWidth, vh = wfC.clientHeight; zoom = Math.max(0.15, Math.min(vw/cw, vh/ch, 2)); panX = (vw - cw*zoom)/2 - (x1-pad)*zoom; panY = (vh - ch*zoom)/2 - (y1-pad)*zoom; applyTransform(); } /* ═══════════════════════════════════════════ CONNECTION DRAWING ═══════════════════════════════════════════ */ function bezier(x1, y1, x2, y2, col, alpha) { const cp = Math.max(40, Math.abs(x2-x1) * 0.45); cx.save(); cx.globalAlpha = alpha * 0.12; cx.beginPath(); cx.moveTo(x1,y1); cx.bezierCurveTo(x1+cp,y1, x2-cp,y2, x2,y2); cx.strokeStyle = col; cx.lineWidth = 8; cx.stroke(); cx.globalAlpha = alpha * 0.85; cx.beginPath(); cx.moveTo(x1,y1); cx.bezierCurveTo(x1+cp,y1, x2-cp,y2, x2,y2); cx.strokeStyle = col; cx.lineWidth = 2.5; cx.lineCap = 'round'; cx.stroke(); cx.restore(); } function drawConns() { cx.clearRect(0, 0, cvs.width, cvs.height); if (!pyReady) return; const edges = pyJson('json.dumps(graph.edges)'); if (edges) edges.forEach(c => { const fp = wfInner.querySelector(`.port[data-nid="${c.fn}"][data-pt="out"][data-pi="${c.fp}"]`); const tp = wfInner.querySelector(`.port[data-nid="${c.tn}"][data-pt="in"][data-pi="${c.tp}"]`); if (fp && tp) { const a = portCenter(fp), b = portCenter(tp); bezier(a.x, a.y, b.x, b.y, '#ff6b6b', 1); } }); if (connInfo && tempEnd) { const p = portCenter(connInfo.el); if (connInfo.ptype === 'out') bezier(p.x, p.y, tempEnd.x, tempEnd.y, '#ff6b6b', 0.45); else bezier(tempEnd.x, tempEnd.y, p.x, p.y, '#4ecdc4', 0.45); } } function updPortStyles() { if (!pyReady) return; wfInner.querySelectorAll('.port').forEach(p => p.classList.remove('conn')); const edges = pyJson('json.dumps(graph.edges)'); if (edges) edges.forEach(c => { const fp = wfInner.querySelector(`.port[data-nid="${c.fn}"][data-pt="out"][data-pi="${c.fp}"]`); const tp = wfInner.querySelector(`.port[data-nid="${c.tn}"][data-pt="in"][data-pi="${c.tp}"]`); if (fp) fp.classList.add('conn'); if (tp) tp.classList.add('conn'); }); } function updHint() { const n = pyReady ? pyJson('len(graph.nodes)') : 0; $('#wfHint').style.display = n ? 'none' : ''; } /* ═══════════════════════════════════════════ MINIMAP ═══════════════════════════════════════════ */ let mmData = null; function drawMinimap() { mmCx.fillStyle = '#0d1117'; mmCx.fillRect(0, 0, 170, 115); if (!pyReady) return; const nids = pyJson('list(graph.nodes.keys())'); if (!nids || !nids.length) { mmData = null; return; } let x1=Infinity, y1=Infinity, x2=-Infinity, y2=-Infinity; nids.forEach(nid => { const m = nodeMeta[nid]; if(m){x1=Math.min(x1,m.x);y1=Math.min(y1,m.y);x2=Math.max(x2,m.x+m.w);y2=Math.max(y2,m.y+m.h);} }); const pad = 80; x1-=pad; y1-=pad; x2+=pad; y2+=pad; const w=x2-x1, h=y2-y1, sc=Math.min(170/w, 115/h); const ox=(170-w*sc)/2, oy=(115-h*sc)/2; mmData = {minX:x1, minY:y1, scale:sc, ox, oy}; nids.forEach(nid => { const m = nodeMeta[nid]; if(!m) return; const st = pyJson(`json.dumps(graph.nodes[${nid}])`); const td = pyJson(`json.dumps(NODE_DEFS["${st.type}"])`); mmCx.fillStyle = (td.color||'#666') + '88'; mmCx.fillRect(ox+(m.x-x1)*sc, oy+(m.y-y1)*sc, Math.max(2,m.w*sc), Math.max(2,m.h*sc)); }); const vx=-panX/zoom, vy=-panY/zoom, vw=wfC.clientWidth/zoom, vh=wfC.clientHeight/zoom; mmCx.strokeStyle='#ff6b6baa'; mmCx.lineWidth=1.5; mmCx.strokeRect(ox+(vx-x1)*sc, oy+(vy-y1)*sc, vw*sc, vh*sc); } $('#minimap').addEventListener('click', e => { if (!mmData) return; const rect = e.currentTarget.getBoundingClientRect(); const wx = (e.clientX-rect.left-mmData.ox)/mmData.scale + mmData.minX; const wy = (e.clientY-rect.top-mmData.oy)/mmData.scale + mmData.minY; panX = wfC.clientWidth/2 - wx*zoom; panY = wfC.clientHeight/2 - wy*zoom; applyTransform(); }); /* ═══════════════════════════════════════════ ZOOM (wheel) ═══════════════════════════════════════════ */ wfC.addEventListener('wheel', e => { e.preventDefault(); const nz = Math.max(0.1, Math.min(4, zoom * (e.deltaY > 0 ? 0.92 : 1.08))); const r = wfC.getBoundingClientRect(); const mx = e.clientX-r.left, my = e.clientY-r.top; panX = mx-(mx-panX)*(nz/zoom); panY = my-(my-panY)*(nz/zoom); zoom = nz; applyTransform(); }, { passive: false }); /* ═══════════════════════════════════════════ NODE CREATION ═══════════════════════════════════════════ */ function addNode(type, x, y, nidOverride, nodeState) { const nid = nidOverride != null ? nidOverride : nextNid++; if (nodeState) py(`graph.nodes[${nid}] = ${JSON.stringify(nodeState)}`); else py(`graph.add_node(${nid}, "${type}")`); const td = pyJson(`json.dumps(NODE_DEFS["${type}"])`); const isValue = td.value_node; nodeMeta[nid] = { x, y, w: isValue ? 160 : 190, h: isValue ? 100 : 120 }; const el = document.createElement('div'); el.className = 'node' + ((nodeState && nodeState.disabled) ? ' disabled' : ''); el.dataset.nid = nid; el.style.left = x + 'px'; el.style.top = y + 'px'; if (nodeMeta[nid].w) el.style.width = nodeMeta[nid].w + 'px'; const hdr = document.createElement('div'); hdr.className = 'nhdr'; hdr.style.background = td.color; hdr.innerHTML = `<span class="nhdr-title">${td.name}</span><span class="ndel" title="Delete node">&times;</span>`; el.appendChild(hdr); const body = document.createElement('div'); body.className = 'nbody'; el.appendChild(body); const res = document.createElement('div'); res.className = 'nres'; el.appendChild(res); wfInner.appendChild(el); renderNodeBody(nid); updHint(); drawMinimap(); return nid; } function renderNodeBody(nid) { const el = wfInner.querySelector(`.node[data-nid="${nid}"]`); if (!el) return; const body = el.querySelector('.nbody'); body.innerHTML = ''; const state = pyJson(`json.dumps(graph.nodes[${nid}])`); const td = pyJson(`json.dumps(NODE_DEFS["${state.type}"])`); const ins = pyJson(`json.dumps(graph.get_inputs(${nid}))`); const outs = pyJson(`json.dumps(graph.get_outs(${nid}))`); const isValue = td.value_node; // Preserve classes const wasSel = el.classList.contains('sel'); el.className = 'node' + (state.disabled ? ' disabled' : '') + (wasSel ? ' sel' : ''); // File controls if (td.file) { const fd = document.createElement('div'); fd.className = 'nfile'; const fi = document.createElement('input'); fi.type = 'file'; fi.accept = 'image/*'; fi.addEventListener('change', e => handleUpload(nid, e)); const fb = document.createElement('span'); fb.className = 'fbtn'; fb.textContent = 'Upload'; fb.addEventListener('click', () => fi.click()); const sb = document.createElement('span'); sb.className = 'sbtn'; sb.textContent = 'Sample'; sb.addEventListener('click', () => loadSample(nid)); fd.append(fi, fb, sb); body.appendChild(fd); } // Input ports ins.forEach((nm, i) => { const row = document.createElement('div'); row.className = 'npr inp'; const pt = document.createElement('div'); pt.className = 'port'; pt.dataset.nid = nid; pt.dataset.pt = 'in'; pt.dataset.pi = i; pt.dataset.pn = nm; const lb = document.createElement('span'); lb.className = 'plbl'; lb.textContent = nm; row.append(pt, lb); body.appendChild(row); }); // Params (non-promoted) (td.params || []).forEach(p => { if (state.promoted && state.promoted.includes(p.id)) return; const pd = document.createElement('div'); pd.className = 'nparam'; const lb = document.createElement('label'); const lt = document.createElement('span'); lt.textContent = p.label; const pv = document.createElement('span'); pv.className = 'pv'; const val = state.params[p.id]; pv.textContent = Number.isInteger(val) ? val : parseFloat(val).toFixed(2); lb.append(lt, pv); const inp = document.createElement('input'); inp.type = 'range'; inp.min = p.min; inp.max = p.max; inp.step = p.step; inp.value = val; inp.addEventListener('input', e => { const v = parseFloat(e.target.value); py(`graph.update_param(${nid}, "${p.id}", ${v})`); pv.textContent = Number.isInteger(v) ? v : v.toFixed(2); }); pd.append(lb, inp); body.appendChild(pd); }); // Preview (image nodes) or value display (value nodes) if (isValue) { const vd = document.createElement('div'); vd.className = 'nval-display'; vd.id = 'prev-' + nid; const val = state.params.value; vd.textContent = val != null ? (Number.isInteger(val) ? val : parseFloat(val).toFixed(2)) : '0'; body.appendChild(vd); } else { const prev = document.createElement('div'); prev.className = 'nprev'; prev.id = 'prev-' + nid; const m = nodeMeta[nid]; if (m && m.outB64) { const img = document.createElement('img'); img.src = 'data:image/png;base64,' + m.outB64; prev.appendChild(img); } else if (m && m.imgB64) { const img = document.createElement('img'); img.src = 'data:image/png;base64,' + m.imgB64; prev.appendChild(img); } else { prev.innerHTML = '<div class="ph">No image</div>'; } body.appendChild(prev); } // Output ports outs.forEach((nm, i) => { const row = document.createElement('div'); row.className = 'npr outp'; const lb = document.createElement('span'); lb.className = 'plbl'; lb.textContent = nm; const pt = document.createElement('div'); pt.className = 'port'; pt.dataset.nid = nid; pt.dataset.pt = 'out'; pt.dataset.pi = i; pt.dataset.pn = nm; row.append(lb, pt); body.appendChild(row); }); // Port listeners body.querySelectorAll('.port').forEach(pt => { pt.addEventListener('mousedown', e => { e.preventDefault(); e.stopPropagation(); connInfo = { nid: parseInt(pt.dataset.nid), ptype: pt.dataset.pt, pidx: parseInt(pt.dataset.pi), el: pt }; }); }); } /* ═══════════════════════════════════════════ NODE DELETE (event delegation for cross btn) ═══════════════════════════════════════════ */ wfInner.addEventListener('click', e => { if (e.target.classList.contains('ndel')) { const nid = parseInt(e.target.closest('.node').dataset.nid); delNode(nid); } }); function delNode(nid) { py(`graph.remove_node(${nid})`); const el = wfInner.querySelector(`.node[data-nid="${nid}"]`); if (el) el.remove(); delete nodeMeta[nid]; updPortStyles(); drawConns(); updHint(); drawMinimap(); } /* ═══════════════════════════════════════════ GLOBAL MOUSE HANDLERS ═══════════════════════════════════════════ */ const PAN_THRESHOLD = 4; document.addEventListener('mousemove', e => { if (panInfo) { const dx = e.clientX - panInfo.startX, dy = e.clientY - panInfo.startY; if (!panInfo.moved && Math.abs(dx) + Math.abs(dy) > PAN_THRESHOLD) { panInfo.moved = true; wfC.style.cursor = 'grabbing'; } if (panInfo.moved) { panX = panInfo.startPanX + dx; panY = panInfo.startPanY + dy; applyTransform(); } return; } if (dragInfo) { const dx = (e.clientX - dragInfo.lastX) / zoom, dy = (e.clientY - dragInfo.lastY) / zoom; const m = nodeMeta[dragInfo.nid]; const el = wfInner.querySelector(`.node[data-nid="${dragInfo.nid}"]`); if (dragInfo.resizing) { m.w = Math.max(160, m.w + dx); m.h = Math.max(80, m.h + dy); if (el) { el.style.width = m.w + 'px'; } } else { let nx = m.x + dx, ny = m.y + dy; if ($('#snapCheck').checked) { const gs = gridSize; nx = Math.round(nx/gs)*gs; ny = Math.round(ny/gs)*gs; } m.x = nx; m.y = ny; if (el) { el.style.left = nx + 'px'; el.style.top = ny + 'px'; } } dragInfo.lastX = e.clientX; dragInfo.lastY = e.clientY; drawConns(); drawMinimap(); return; } if (connInfo) { const cr = wfC.getBoundingClientRect(); tempEnd = { x: e.clientX-cr.left, y: e.clientY-cr.top }; drawConns(); } }); document.addEventListener('mouseup', e => { if (panInfo) { wfC.style.cursor = ''; if (!panInfo.moved) { wfInner.querySelectorAll('.node.sel').forEach(n => n.classList.remove('sel')); closeCtxMenu(); closeSearchMenu(); } panInfo = null; return; } if (connInfo) { const target = e.target.closest('.port'); if (target) { const tNid = parseInt(target.dataset.nid), tPt = target.dataset.pt, tPi = parseInt(target.dataset.pi); if (tPt !== connInfo.ptype && tNid !== connInfo.nid) { let fn, fp, tn, tp; if (connInfo.ptype === 'out') { fn=connInfo.nid; fp=connInfo.pidx; tn=tNid; tp=tPi; } else { fn=tNid; fp=tPi; tn=connInfo.nid; tp=connInfo.pidx; } const ok = py(`graph.add_edge(${fn}, ${fp}, ${tn}, ${tp})`); if (ok) updPortStyles(); else toast('Cannot connect: would create a cycle', 'err'); } } connInfo = null; tempEnd = null; drawConns(); } dragInfo = null; }); wfInner.addEventListener('mousedown', e => { const nodeEl = e.target.closest('.node'); if (!nodeEl || e.target.classList.contains('ndel')) return; const nid = parseInt(nodeEl.dataset.nid); mxZ++; nodeEl.style.zIndex = mxZ; if (!e.shiftKey) wfInner.querySelectorAll('.node.sel').forEach(n => n.classList.remove('sel')); nodeEl.classList.add('sel'); if (e.target.classList.contains('nres')) { dragInfo = { nid, resizing: true, lastX: e.clientX, lastY: e.clientY }; e.preventDefault(); return; } if (e.target.closest('.nhdr') && !e.target.classList.contains('ndel')) { dragInfo = { nid, resizing: false, lastX: e.clientX, lastY: e.clientY }; e.preventDefault(); return; } }); wfC.addEventListener('mousedown', e => { if (e.target.closest('.node') || e.target.closest('#minimap') || e.target.closest('.popup')) return; if (e.button === 2) return; panInfo = { startPanX: panX, startPanY: panY, startX: e.clientX, startY: e.clientY, moved: false }; e.preventDefault(); }); wfInner.addEventListener('contextmenu', e => { e.preventDefault(); const nodeEl = e.target.closest('.node'); if (nodeEl) showCtxMenu(parseInt(nodeEl.dataset.nid), e); }); /* ═══════════════════════════════════════════ CONTEXT MENU ═══════════════════════════════════════════ */ function showCtxMenu(nid, e) { const panel = $('#wfPanel'), pr = panel.getBoundingClientRect(), menu = $('#ctxMenu'); const state = pyJson(`json.dumps(graph.nodes[${nid}])`); const td = pyJson(`json.dumps(NODE_DEFS["${state.type}"])`); let html = `<div class="ctx-item danger" data-act="del">Delete Node</div>`; html += `<div class="ctx-item" data-act="toggle">${state.disabled ? 'Enable' : 'Disable'} Node</div>`; if (td.params && td.params.length) { html += '<div class="ctx-sep"></div><div class="ctx-label">Parameters</div>'; td.params.forEach(p => { const isProm = state.promoted && state.promoted.includes(p.id); html += `<div class="ctx-item" data-act="${isProm?'demote':'promote'}" data-pid="${p.id}">${p.label} <span class="ctx-sub">${isProm?'Demote':'Promote to input'}</span></div>`; }); } menu.innerHTML = html; menu.style.display = 'block'; let left = e.clientX - pr.left, top = e.clientY - pr.top; if (left + 180 > pr.width) left = pr.width - 185; if (top + menu.offsetHeight > pr.height) top = pr.height - menu.offsetHeight - 5; menu.style.left = Math.max(0, left) + 'px'; menu.style.top = Math.max(0, top) + 'px'; menu.querySelectorAll('.ctx-item').forEach(item => { item.addEventListener('click', () => { const act = item.dataset.act, pid = item.dataset.pid; if (act === 'del') delNode(nid); else if (act === 'toggle') { py(`graph.toggle_disable(${nid})`); renderNodeBody(nid); } else if (act === 'promote') { py(`graph.promote_param(${nid}, "${pid}")`); renderNodeBody(nid); updPortStyles(); drawConns(); } else if (act === 'demote') { const ins = pyJson(`json.dumps(graph.get_inputs(${nid}))`); const pidx = ins.indexOf(pid); if (pidx !== -1) py(`graph.edges = [e for e in graph.edges if not (int(e["tn"]) == ${nid} and int(e["tp"]) == ${pidx})]`); py(`graph.demote_param(${nid}, "${pid}")`); renderNodeBody(nid); updPortStyles(); drawConns(); } closeCtxMenu(); }); }); } function closeCtxMenu() { $('#ctxMenu').style.display = 'none'; } /* ═══════════════════════════════════════════ SEARCH MENU (double-click canvas) ═══════════════════════════════════════════ */ wfC.addEventListener('dblclick', e => { if (e.target.closest('.node') || e.target.closest('#minimap') || e.target.closest('.popup')) return; const pr = $('#wfPanel').getBoundingClientRect(); showSearchMenu(e.clientX - pr.left, e.clientY - pr.top, (e.clientX - pr.left - panX)/zoom - 90, (e.clientY - pr.top - panY)/zoom - 20); }); function showSearchMenu(sx, sy, wx, wy) { const menu = $('#searchMenu'), pr = $('#wfPanel').getBoundingClientRect(); let left = sx, top = sy; if (left + 220 > pr.width) left = pr.width - 225; if (top + 200 > pr.height) top = pr.height - 205; menu.style.left = Math.max(0, left) + 'px'; menu.style.top = Math.max(0, top) + 'px'; menu.style.display = 'block'; menu._wx = wx; menu._wy = wy; const inp = $('#searchInput'); inp.value = ''; inp.focus(); filterSearch(); } function closeSearchMenu() { $('#searchMenu').style.display = 'none'; } $('#searchInput').addEventListener('input', filterSearch); $('#searchInput').addEventListener('keydown', e => { if (e.key === 'Escape') closeSearchMenu(); }); function filterSearch() { const q = $('#searchInput').value.toLowerCase(); const defs = pyReady ? pyJson('json.dumps(NODE_DEFS)') : {}; const res = $('#searchResults'); res.innerHTML = ''; let count = 0; for (const [type, d] of Object.entries(defs)) { if (count >= 8) break; if (d.name.toLowerCase().includes(q)) { const div = document.createElement('div'); div.className = 'search-item'; div.innerHTML = `<div class="sb-dot" style="background:${d.color}"></div>${d.name}`; div.addEventListener('click', () => { const m = $('#searchMenu'); addNode(type, m._wx, m._wy); closeSearchMenu(); }); res.appendChild(div); count++; } } if (!count) res.innerHTML = '<div style="padding:8px;font-size:10px;color:var(--muted)">No results</div>'; } document.addEventListener('mousedown', e => { if (!e.target.closest('#ctxMenu')) closeCtxMenu(); if (!e.target.closest('#searchMenu') && !e.target.closest('#wfC')) closeSearchMenu(); }); /* ═══════════════════════════════════════════ SIDEBAR ═══════════════════════════════════════════ */ const NODE_CATEGORIES = [ { title: 'Input / Output', items: [ { type: 'image_input', color: '#4CAF50', name: 'Image Input' }, { type: 'image_output', color: '#FF5722', name: 'Image Output' } ]}, { title: 'Values', items: [ { type: 'int_value', color: '#2196F3', name: 'Int Value' }, { type: 'float_value', color: '#03A9F4', name: 'Float Value' } ]}, { title: 'Color', items: [ { type: 'grayscale', color: '#607D8B', name: 'Grayscale' }, { type: 'invert', color: '#E91E63', name: 'Invert Colors' } ]}, { title: 'Filters', items: [ { type: 'gaussian_blur', color: '#FF9800', name: 'Gaussian Blur' }, { type: 'threshold', color: '#795548', name: 'Otsu Threshold' } ]}, { title: 'Edge Detection', items: [ { type: 'sobel', color: '#009688', name: 'Sobel Edge' }, { type: 'canny', color: '#3F51B5', name: 'Canny Edge' } ]}, { title: 'Transform', items: [ { type: 'contour', color: '#9C27B0', name: 'Contour Detect' }, { type: 'rotate', color: '#00BCD4', name: 'Rotate' }, { type: 'resize', color: '#8BC34A', name: 'Resize' } ]} ]; function buildSidebar() { const sb = $('#sbNodes'); sb.innerHTML = ''; NODE_CATEGORIES.forEach(cat => { const title = document.createElement('div'); title.className = 'sb-title'; title.textContent = cat.title; sb.appendChild(title); cat.items.forEach(item => { const div = document.createElement('div'); div.className = 'sb-item'; div.draggable = true; div.dataset.type = item.type; div.innerHTML = `<div class="sb-dot" style="background:${item.color}"></div>${item.name}`; div.addEventListener('dragstart', e => { e.dataTransfer.setData('nodeType', item.type); e.dataTransfer.effectAllowed = 'copy'; }); div.addEventListener('dblclick', () => { const c = viewportCenter(); addNode(item.type, c.x - 90, c.y - 20); }); sb.appendChild(div); }); }); } // Sidebar tab switching $$('.sb-tab').forEach(btn => btn.addEventListener('click', () => { $$('.sb-tab').forEach(b => b.classList.remove('on')); $$('.sb-content').forEach(b => b.classList.remove('on')); btn.classList.add('on'); $(btn.dataset.sb === 'nodes' ? '#sbNodes' : '#sbLibrary').classList.add('on'); })); // Drag & drop on canvas wfC.addEventListener('dragover', e => { e.preventDefault(); e.dataTransfer.dropEffect = 'copy'; }); wfC.addEventListener('drop', e => { e.preventDefault(); const type = e.dataTransfer.getData('nodeType'); if (!type) return; const cr = wfC.getBoundingClientRect(); addNode(type, (e.clientX-cr.left-panX)/zoom - 90, (e.clientY-cr.top-panY)/zoom - 20); }); /* ═══════════════════════════════════════════ IMAGE HANDLING ═══════════════════════════════════════════ */ function imgToB64(img) { const maxD = 512; let w = img.naturalWidth || img.width, h = img.naturalHeight || img.height; if (w > maxD || h > maxD) { const s = Math.min(maxD/w, maxD/h); w = Math.round(w*s); h = Math.round(h*s); } const c = document.createElement('canvas'); c.width = w; c.height = h; c.getContext('2d').drawImage(img, 0, 0, w, h); return c.toDataURL('image/png').split(',')[1]; } function setPreview(nid, b64, val) { const prev = $(`#prev-${nid}`); if (!prev) return; if (prev.classList.contains('nval-display')) { prev.textContent = val != null ? (Number.isInteger(val) ? val : parseFloat(val).toFixed(2)) : '0'; return; } if (b64) { prev.innerHTML = ''; const img = document.createElement('img'); img.src = 'data:image/png;base64,' + b64; prev.appendChild(img); } else prev.innerHTML = '<div class="ph">No image</div>'; } function handleUpload(nid, e) { const file = e.target.files[0]; if (!file) return; const reader = new FileReader(); reader.onload = ev => { const img = new Image(); img.onload = () => { const b64 = imgToB64(img); const m = nodeMeta[nid]; if (m) { m.imgB64 = b64; m.outB64 = b64; m.lastHash = null; } setPreview(nid, b64); }; img.src = ev.target.result; }; reader.readAsDataURL(file); } function loadSample(nid) { const c = document.createElement('canvas'); c.width = 320; c.height = 240; const ctx = c.getContext('2d'); const g = ctx.createLinearGradient(0,0,320,240); g.addColorStop(0,'#1a2a3a'); g.addColorStop(1,'#2a4a3a'); ctx.fillStyle = g; ctx.fillRect(0,0,320,240); ctx.fillStyle = '#e74c3c'; ctx.beginPath(); ctx.arc(80,100,50,0,Math.PI*2); ctx.fill(); ctx.fillStyle = '#2ecc71'; ctx.fillRect(160,60,80,80); ctx.fillStyle = '#f39c12'; ctx.beginPath(); ctx.moveTo(280,40); ctx.lineTo(310,120); ctx.lineTo(250,120); ctx.closePath(); ctx.fill(); ctx.fillStyle = '#9b59b6'; ctx.beginPath(); ctx.ellipse(160,180,60,30,0,0,Math.PI*2); ctx.fill(); ctx.strokeStyle = '#ecf0f1'; ctx.lineWidth = 3; ctx.beginPath(); ctx.moveTo(10,200); ctx.lineTo(310,200); ctx.stroke(); const b64 = c.toDataURL('image/png').split(',')[1]; const m = nodeMeta[nid]; if (m) { m.imgB64 = b64; m.outB64 = b64; m.lastHash = null; } setPreview(nid, b64); } /* ═══════════════════════════════════════════ WORKFLOW TABS ═══════════════════════════════════════════ */ function initTabs() { const saved = localStorage.getItem('nodeWfTabs'); if (saved) { const s = JSON.parse(saved); workflows = s.workflows || []; wfCounter = s.counter || 1; } if (!workflows.length) workflows.push({ id: wfCounter++, name: 'Workflow 1' }); activeWfId = workflows[0].id; renderTabs(); loadWfLibrary(); loadCurrentWf(); } function renderTabs() { const c = $('#tabsScroll'); c.innerHTML = ''; workflows.forEach(wf => { const tab = document.createElement('div'); tab.className = 'tab' + (wf.id === activeWfId ? ' on' : ''); const nameSpan = document.createElement('span'); nameSpan.className = 'tab-name'; nameSpan.contentEditable = 'true'; nameSpan.spellcheck = false; nameSpan.textContent = wf.name; nameSpan.addEventListener('blur', () => { wf.name = nameSpan.textContent.trim() || 'Untitled'; loadWfLibrary(); }); nameSpan.addEventListener('keydown', e => { if (e.key === 'Enter') { e.preventDefault(); nameSpan.blur(); } }); nameSpan.addEventListener('mousedown', e => e.stopPropagation()); tab.appendChild(nameSpan); if (workflows.length > 1) { const cls = document.createElement('span'); cls.className = 'tab-close'; cls.textContent = '\u00d7'; cls.addEventListener('click', e => { e.stopPropagation(); removeTab(wf.id); }); tab.appendChild(cls); } tab.addEventListener('click', e => { if (!e.target.classList.contains('tab-close')) switchTab(wf.id); }); c.appendChild(tab); }); } function switchTab(id) { saveCurrentWf(); activeWfId = id; clearWfDOM(); py('graph.clear()'); loadCurrentWf(); renderTabs(); } function addTab() { const id = wfCounter++; workflows.push({ id, name: 'Workflow ' + id }); switchTab(id); } function removeTab(id) { saveCurrentWf(); workflows = workflows.filter(w => w.id !== id); if (activeWfId === id) { activeWfId = workflows[0].id; clearWfDOM(); py('graph.clear()'); loadCurrentWf(); } renderTabs(); persistTabs(); } $('#btnAddTab').addEventListener('click', addTab); function clearWfDOM() { wfInner.querySelectorAll('.node').forEach(n => n.remove()); nodeMeta = {}; updHint(); drawConns(); drawMinimap(); } function saveCurrentWf() { if (!pyReady) return; const state = py('json.dumps(graph.get_state())'); const wf = workflows.find(w => w.id === activeWfId); if (wf) { wf.state = state; wf.meta = {}; for (const [k, v] of Object.entries(nodeMeta)) { wf.meta[k] = { x: v.x, y: v.y, w: v.w, h: v.h, outVal: v.outVal }; } } persistTabs(); } function persistTabs() { const lite = workflows.map(w => ({ id: w.id, name: w.name, state: w.state, meta: w.meta })); localStorage.setItem('nodeWfTabs', JSON.stringify({ workflows: lite, counter: wfCounter })); } function loadCurrentWf() { const wf = workflows.find(w => w.id === activeWfId); if (!wf || !wf.state) { updHint(); return; } let state; try { state = typeof wf.state === 'string' ? JSON.parse(wf.state) : wf.state; } catch(e) { console.error('Failed to parse state', e); return; } nodeMeta = {}; if (wf.meta) { for (const [k, v] of Object.entries(wf.meta)) { nodeMeta[k] = { ...v, imgB64: null, outB64: null, lastHash: null }; } } py(`graph.load_state(${JSON.stringify(state)})`); for (const [nid, nState] of Object.entries(state.nodes)) { const m = nodeMeta[nid] || { x: Math.random()*300+50, y: Math.random()*200+50, w: 190, h: 120 }; nodeMeta[nid] = m; const el = document.createElement('div'); el.className = 'node' + (nState.disabled ? ' disabled' : ''); el.dataset.nid = nid; el.style.left = m.x + 'px'; el.style.top = m.y + 'px'; if (m.w) el.style.width = m.w + 'px'; const td = pyJson(`json.dumps(NODE_DEFS["${nState.type}"])`); const hdr = document.createElement('div'); hdr.className = 'nhdr'; hdr.style.background = td.color; hdr.innerHTML = `<span class="nhdr-title">${td.name}</span><span class="ndel" title="Delete">&times;</span>`; el.appendChild(hdr); const body = document.createElement('div'); body.className = 'nbody'; el.appendChild(body); const res = document.createElement('div'); res.className = 'nres'; el.appendChild(res); wfInner.appendChild(el); renderNodeBody(parseInt(nid)); } const nids = Object.keys(state.nodes).map(Number); if (nids.length) nextNid = Math.max(...nids) + 1; updPortStyles(); drawConns(); updHint(); drawMinimap(); } /* ═══════════════════════════════════════════ LIBRARY SAVE/LOAD ═══════════════════════════════════════════ */ function loadWfLibrary() { const list = $('#wfList'); const libs = JSON.parse(localStorage.getItem('nodeWfLibrary') || '[]'); if (!libs.length) { list.innerHTML = '<div class="sb-empty">No saved workflows yet</div>'; return; } list.innerHTML = ''; libs.forEach((lib, i) => { const div = document.createElement('div'); div.className = 'sb-wf-item'; div.innerHTML = `<span>${lib.name}</span><span class="sb-wf-del">&times;</span>`; div.querySelector('span:first-child').addEventListener('click', () => loadFromLibrary(i)); div.querySelector('.sb-wf-del').addEventListener('click', e => { e.stopPropagation(); removeFromLibrary(i); }); list.appendChild(div); }); } function saveToLibrary() { saveCurrentWf(); const wf = workflows.find(w => w.id === activeWfId); if (!wf || !wf.state) { toast('Nothing to save', 'err'); return; } const name = prompt('Save workflow as:', wf.name); if (!name) return; const libs = JSON.parse(localStorage.getItem('nodeWfLibrary') || '[]'); const liteMeta = {}; for (const [k, v] of Object.entries(nodeMeta)) liteMeta[k] = { x: v.x, y: v.y, w: v.w, h: v.h }; const stateObj = typeof wf.state === 'string' ? JSON.parse(wf.state) : wf.state; libs.push({ name, state: stateObj, meta: liteMeta }); localStorage.setItem('nodeWfLibrary', JSON.stringify(libs)); loadWfLibrary(); toast('Saved to library', 'ok'); } function loadFromLibrary(idx) { const libs = JSON.parse(localStorage.getItem('nodeWfLibrary') || '[]'); if (!libs[idx]) return; addTab(); const wf = workflows.find(w => w.id === activeWfId); wf.name = libs[idx].name; wf.state = JSON.stringify(libs[idx].state); wf.meta = libs[idx].meta || {}; loadCurrentWf(); renderTabs(); toast('Workflow loaded', 'inf'); } function removeFromLibrary(idx) { let libs = JSON.parse(localStorage.getItem('nodeWfLibrary') || '[]'); libs.splice(idx, 1); localStorage.setItem('nodeWfLibrary', JSON.stringify(libs)); loadWfLibrary(); } $('#btnSave').addEventListener('click', saveToLibrary); $('#btnClear').addEventListener('click', () => { clearWfDOM(); py('graph.clear()'); updHint(); toast('Canvas cleared', 'inf'); }); /* ═══════════════════════════════════════════ SETTINGS ═══════════════════════════════════════════ */ $('#btnSettings').addEventListener('click', e => { e.stopPropagation(); $('#settingsPanel').classList.toggle('open'); }); document.addEventListener('click', e => { if (!e.target.closest('#settingsPanel') && !e.target.closest('#btnSettings')) $('#settingsPanel').classList.remove('open'); }); $('#gridSizeSel').addEventListener('change', e => { gridSize = parseInt(e.target.value); updateGrid(); }); /* ═══════════════════════════════════════════ WORKFLOW EXECUTION ═══════════════════════════════════════════ */ async function runWorkflow() { if (!pyReady) { toast('Environment not ready', 'err'); return; } const nodeCount = pyJson('len(graph.nodes)'); if (!nodeCount) { toast('Add some nodes first', 'err'); return; } const btn = $('#btnRun'); btn.disabled = true; btn.textContent = 'Running...'; const forceRun = $('#forceRunCheck').checked; wfInner.querySelectorAll('.node').forEach(n => n.classList.remove('done','running','err')); const order = pyJson('json.dumps(graph.topological_sort())'); if (!order) { toast('Cycle detected!', 'err'); btn.disabled = false; btn.textContent = 'Run'; return; } const edges = pyJson('json.dumps(graph.edges)'); const inMap = {}; order.forEach(nid => inMap[nid] = []); if (edges) edges.forEach(e => inMap[e.tn].push(e)); let hadError = false; for (const nid of order) { const nd = nodeMeta[nid]; if (!nd) continue; const state = pyJson(`json.dumps(graph.nodes[${nid}])`); const el = wfInner.querySelector(`.node[data-nid="${nid}"]`); const isValue = pyJson(`graph.is_value_node(${nid})`); const td = pyJson(`json.dumps(NODE_DEFS["${state.type}"])`); if (el) { el.classList.remove('done','running','err'); el.classList.add('running'); } try { let inputB64 = null; const baseIns = pyJson(`json.dumps(NODE_DEFS["${state.type}"]["ins"])`); if (inMap[nid]) { inMap[nid].forEach(conn => { const src = nodeMeta[conn.fn]; if (!src) return; if (conn.tp === 0 && baseIns.length > 0 && baseIns[0] === 'image') { inputB64 = src.outB64; } if (conn.tp >= baseIns.length && state.promoted) { const pId = state.promoted[conn.tp - baseIns.length]; if (pId && src.outVal !== undefined && src.outVal !== null) { state.params[pId] = src.outVal; } } }); } const currentHash = hashStr((inputB64||'').slice(0,80) + JSON.stringify(state.params) + state.type + String(state.disabled)); if (state.disabled) { nd.outB64 = inputB64; nd.outVal = isValue ? state.params.value : undefined; nd.lastHash = currentHash; } else if (!forceRun && nd.lastHash === currentHash && (nd.outB64 || isValue)) { // Cache hit } else { if (isValue) { nd.outVal = state.params.value; nd.outB64 = null; } else if (state.type === 'image_input') { nd.outB64 = nd.imgB64 || null; nd.outVal = undefined; } else if (state.type === 'image_output') { nd.outB64 = inputB64; nd.outVal = undefined; } else { if (!inputB64) { nd.outB64 = null; } else { pyodide.globals.set('_in_b64', inputB64); pyodide.globals.set('_op', state.type); pyodide.globals.set('_pjson', JSON.stringify(state.params)); py('output_b64 = process_image(_in_b64, _op, _pjson)'); nd.outB64 = pyodide.globals.get('output_b64'); } nd.outVal = undefined; } nd.lastHash = currentHash; } setPreview(nid, nd.outB64, nd.outVal); if (el) { el.classList.remove('running'); el.classList.add('done'); } } catch (err) { console.error('Node error:', state.type, err); if (el) { el.classList.remove('running'); el.classList.add('err'); } toast('Error in ' + (td.name || state.type) + ': ' + (err.message || String(err)).slice(0, 80), 'err'); hadError = true; break; } await new Promise(r => setTimeout(r, 15)); } if (!hadError) toast('Workflow complete!', 'ok'); btn.disabled = false; btn.textContent = 'Run'; } $('#btnRun').addEventListener('click', runWorkflow); /* ═══════════════════════════════════════════ KEYBOARD SHORTCUTS ═══════════════════════════════════════════ */ document.addEventListener('keydown', e => { if (e.target.contentEditable === 'true' || e.target.tagName === 'INPUT' || e.target.tagName === 'SELECT' || e.target.tagName === 'TEXTAREA' || e.target.closest('.CodeMirror')) return; if (e.key === 'Delete' || e.key === 'Backspace') { const sel = wfInner.querySelectorAll('.node.sel'); if (sel.length) { sel.forEach(n => delNode(parseInt(n.dataset.nid))); e.preventDefault(); } } if (e.key === 'Escape') { closeCtxMenu(); closeSearchMenu(); $('#settingsPanel').classList.remove('open'); } if (e.key === ' ') { if (e.target === wfC || wfC.contains(e.target)) { e.preventDefault(); fitAll(); } } }); /* ═══════════════════════════════════════════ PYODIDE INIT ═══════════════════════════════════════════ */ async function initPyodide() { const ldMsg = $('#ldMsg'), ldSub = $('#ldSub'); try { ldMsg.textContent = 'Loading Pyodide runtime...'; pyodide = await loadPyodide(); ldSub.textContent = 'Loading numpy...'; await pyodide.loadPackage('numpy'); ldSub.textContent = 'Loading Pillow...'; await pyodide.loadPackage('pillow'); ldSub.textContent = 'Loading scikit-image...'; try { await pyodide.loadPackage('scikit-image'); } catch(e) { ldSub.textContent = 'Installing scikit-image via micropip...'; await pyodide.loadPackage('micropip'); const mp = pyodide.pyimport('micropip'); await mp.install('scikit-image'); } ldSub.textContent = 'Initializing engine...'; pyodide.runPython(PY_GRAPH); pyodide.runPython(PY_PROCESSOR); pyReady = true; $('#btnRun').disabled = false; $('#sDot').className = 'sdot ok'; $('#sTxt').textContent = 'Ready'; ldMsg.textContent = 'Ready!'; setTimeout(() => $('#loader').classList.add('done'), 300); buildSidebar(); initTabs(); toast('Ready! Drag nodes or double-click canvas to begin.', 'ok'); } catch(e) { console.error('Init error:', e); ldMsg.textContent = 'Failed to load'; ldSub.textContent = (e.message || String(e)).slice(0, 300); $('.spinner').style.display = 'none'; } } /* ═══════════════════════════════════════════ BOOTSTRAP ═══════════════════════════════════════════ */ resizeCvs(); initPyodide(); /* ═══════════════════════════════════════════ TOUCH SUPPORT ═══════════════════════════════════════════ */ let lastTouchDist = null; wfC.addEventListener('touchstart', e => { if (e.touches.length === 2) { const dx = e.touches[0].clientX - e.touches[1].clientX; const dy = e.touches[0].clientY - e.touches[1].clientY; lastTouchDist = Math.sqrt(dx*dx + dy*dy); } }, { passive: true }); wfC.addEventListener('touchmove', e => { if (e.touches.length === 2 && lastTouchDist !== null) { e.preventDefault(); const dx = e.touches[0].clientX - e.touches[1].clientX; const dy = e.touches[0].clientY - e.touches[1].clientY; const dist = Math.sqrt(dx*dx + dy*dy); const factor = dist / lastTouchDist; const nz = Math.max(0.1, Math.min(4, zoom * factor)); const cx = (e.touches[0].clientX + e.touches[1].clientX) / 2; const cy = (e.touches[0].clientY + e.touches[1].clientY) / 2; const r = wfC.getBoundingClientRect(); const mx = cx - r.left, my = cy - r.top; panX = mx - (mx - panX) * (nz / zoom); panY = my - (my - panY) * (nz / zoom); zoom = nz; applyTransform(); lastTouchDist = dist; } }, { passive: false }); wfC.addEventListener('touchend', () => { lastTouchDist = null; }, { passive: true }); </script> </body> </html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>Node Image Processor</title>
<script src="https://cdn.jsdelivr.net/pyodide/v0.29.3/full/pyodide.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.16/codemirror.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.16/theme/material-darker.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.16/codemirror.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.16/mode/python/python.min.js"></script>
<style>
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
--bg:#0d1117;--surface:#161b22;--surface2:#1c2333;--surface3:#222d3d;
--border:#30363d;--accent:#ff6b6b;--accent2:#4ecdc4;--text:#e6edf3;
--muted:#8b949e;--success:#3fb950;--warning:#d29922;--danger:#f85149;
--sidebar-w:clamp(160px,14vw,230px);--toolbar-h:2.5rem;--radius:.5rem;
--font:.8125rem;--font-sm:.6875rem;--font-xs:.5625rem
}
html,body{width:100%;height:100%;overflow:hidden;font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);font-size:16px}
#loader{position:fixed;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.875rem;background:var(--bg);color:var(--text);z-index:9999;transition:opacity .5s}
#loader.done{opacity:0;pointer-events:none}
.spinner{width:2.25rem;height:2.25rem;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
#ldMsg{font-size:var(--font);font-weight:700}
#ldSub{font-size:var(--font-sm);color:var(--muted);max-width:25rem;text-align:center;line-height:1.4}
#toast{position:fixed;bottom:1.5rem;left:50%;transform:translateX(-50%) translateY(4rem);padding:.5rem 1.375rem;border-radius:var(--radius);font-size:var(--font-sm);font-weight:700;z-index:10000;opacity:0;transition:transform .3s cubic-bezier(.4,0,.2,1),opacity .3s;pointer-events:none;white-space:nowrap}
#toast.show{transform:translateX(-50%) translateY(0);opacity:1}
#toast.ok{background:#0f2a1a;color:var(--success);border:1px solid #1a4028}
#toast.err{background:#2a0f0f;color:var(--danger);border:1px solid #401a1a}
#toast.inf{background:#0f1a2a;color:#58a6ff;border:1px solid #1a2840}
#app{display:flex;width:100%;height:100%}
/* SIDEBAR */
#sidebar{width:var(--sidebar-w);background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0;transition:width .2s}
.sb-tabs{display:flex;border-bottom:1px solid var(--border);height:var(--toolbar-h);flex-shrink:0}
.sb-tab{flex:1;display:flex;align-items:center;justify-content:center;font-size:var(--font-xs);font-weight:800;cursor:pointer;color:var(--muted);border-bottom:2px solid transparent;transition:all .15s;text-transform:uppercase;letter-spacing:.5px;padding:0 .5rem}
.sb-tab.on{color:var(--accent);border-color:var(--accent)}
.sb-tab:hover:not(.on){color:var(--text)}
.sb-content{flex:1;overflow-y:auto;display:none}
.sb-content.on{display:flex;flex-direction:column}
.sb-title{padding:.625rem .875rem .25rem;font-size:var(--font-xs);text-transform:uppercase;color:var(--muted);letter-spacing:1px;font-weight:800}
.sb-item{padding:.375rem .75rem;cursor:grab;border-radius:4px;margin:1px .375rem;display:flex;align-items:center;gap:.5rem;font-size:var(--font-sm);transition:background .1s;user-select:none}
.sb-item:hover{background:rgba(255,255,255,.05)}
.sb-item:active{cursor:grabbing;opacity:.7}
.sb-dot{width:.5rem;height:.5rem;border-radius:2px;flex-shrink:0}
.sb-wf-item{padding:.4375rem .75rem;cursor:pointer;border-radius:4px;margin:2px .375rem;display:flex;justify-content:space-between;align-items:center;font-size:var(--font-sm);transition:background .1s}
.sb-wf-item:hover{background:rgba(255,255,255,.05)}
.sb-wf-del{color:var(--muted);cursor:pointer;font-weight:700;font-size:.8125rem;line-height:1}
.sb-wf-del:hover{color:var(--danger)}
.sb-empty{padding:1rem .75rem;font-size:var(--font-xs);color:#2a3040;text-align:center;font-style:italic}
/* MAIN */
#main{flex:1;display:flex;flex-direction:column;overflow:hidden;min-width:0}
#toolbar{height:var(--toolbar-h);background:var(--surface);border-bottom:1px solid var(--border);display:grid;grid-template-columns:1fr auto;align-items:center;flex-shrink:0;position:relative}
#tabsScroll{overflow-x:auto;overflow-y:hidden;display:flex;align-items:center;gap:1px;padding:0 .5rem;height:100%;scrollbar-width:none}
#tabsScroll::-webkit-scrollbar{display:none}
.tab{padding:.3125rem .875rem;cursor:pointer;font-size:var(--font-sm);font-weight:700;border-radius:4px 4px 0 0;background:0;border:0;color:var(--muted);transition:all .12s;display:flex;align-items:center;gap:.375rem;white-space:nowrap;flex-shrink:0;height:100%;align-items:center}
.tab.on{background:var(--surface2);color:var(--text)}
.tab:hover:not(.on){color:var(--text)}
.tab-close{font-size:.8125rem;line-height:1;opacity:.4;margin-left:.125rem;transition:opacity .1s}
.tab-close:hover{opacity:1;color:var(--danger)}
.tab-name{outline:none;border-bottom:1px dashed transparent;padding:0 .125rem;min-width:1.875rem}
.tab-name:focus{border-color:var(--accent2)}
.tb-right{display:flex;align-items:center;gap:.3125rem;padding:0 .625rem;height:100%;border-left:1px solid var(--border);flex-shrink:0}
.tbtn{padding:.25rem .625rem;border-radius:4px;font-size:var(--font-xs);cursor:pointer;border:1px solid var(--border);font-weight:700;background:var(--surface2);color:var(--muted);transition:all .12s;white-space:nowrap}
.tbtn:hover{color:var(--text);border-color:#484f58;background:var(--surface3)}
.tbtn.run{background:var(--accent);color:#fff;border-color:var(--accent)}
.tbtn.run:hover{background:#e55a5a}
.tbtn.run:disabled{background:#1a1a1a;color:#444;border-color:#2a2a2a;cursor:not-allowed}
#statusWrap{display:flex;align-items:center;gap:.3125rem;font-size:var(--font-xs);color:var(--muted);margin-left:.25rem}
.sdot{width:.375rem;height:.375rem;border-radius:50%;background:var(--muted);flex-shrink:0}
.sdot.ok{background:var(--success);box-shadow:0 0 6px rgba(63,185,80,.5)}
.sdot.load{background:var(--warning);animation:bk 1s infinite}
@keyframes bk{0%,100%{opacity:1}50%{opacity:.2}}
/* SETTINGS */
#settingsPanel{position:absolute;top:var(--toolbar-h);right:.625rem;background:var(--surface2);border:1px solid var(--border);border-radius:8px;z-index:200;min-width:13.75rem;box-shadow:0 .5rem 2rem rgba(0,0,0,.5);display:none;overflow:hidden}
#settingsPanel.open{display:block}
.sp-head{padding:.625rem .875rem;font-size:var(--font-sm);font-weight:800;color:var(--accent);border-bottom:1px solid var(--border);background:rgba(255,107,107,.04)}
.sp-body{padding:.5rem .875rem .75rem}
.sp-row{display:flex;justify-content:space-between;align-items:center;font-size:var(--font-sm);padding:.375rem 0;border-bottom:1px solid rgba(48,54,61,.4)}
.sp-row:last-child{border-bottom:none}
.sp-row label{color:var(--text);font-size:var(--font-xs)}
.sp-row input[type=checkbox]{accent-color:var(--accent);width:.9375rem;height:.9375rem;cursor:pointer}
.sp-row select,.sp-row input[type=text],.sp-row input[type=number]{background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:3px;padding:.1875rem .375rem;font-size:var(--font-xs);outline:none;cursor:pointer;max-width:8rem}
.sp-row .tbtn{padding:.1875rem .625rem}
.sp-row .zoom-row{display:flex;align-items:center;gap:.25rem}
.sp-row .zoom-row .zbtn{width:1.5rem;height:1.5rem;display:flex;align-items:center;justify-content:center;border-radius:3px;cursor:pointer;color:var(--muted);font-size:.875rem;font-weight:700;background:var(--bg);border:1px solid var(--border);transition:all .1s}
.sp-row .zoom-row .zbtn:hover{color:var(--text);background:var(--surface3)}
.sp-row .zoom-row .zoom-val{font-size:var(--font-xs);color:var(--text);font-weight:700;min-width:2.5rem;text-align:center;background:var(--bg);border:1px solid var(--border);border-radius:3px;padding:.1875rem .375rem;cursor:pointer}
/* WORKSPACE */
#wfPanel{flex:1;position:relative;overflow:hidden}
#wfC{width:100%;height:100%;position:relative;overflow:hidden;outline:none;cursor:default}
#wfInner{position:absolute;top:0;left:0;width:0;height:0;transform-origin:0 0}
#connCvs{position:absolute;inset:0;z-index:5;pointer-events:none}
.wf-hint{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#161e2e;font-size:.8125rem;font-weight:800;letter-spacing:1.5px;text-transform:uppercase;pointer-events:none;z-index:0;user-select:none}
/* MINIMAP */
#minimap{position:absolute;bottom:.75rem;right:.75rem;z-index:50;width:10.625rem;height:7.1875rem;background:rgba(22,27,34,.85);border:1px solid var(--border);border-radius:5px;overflow:hidden;cursor:pointer;backdrop-filter:blur(4px)}
#minimap canvas{width:100%;height:100%;display:block}
/* POPUPS */
.popup{position:absolute;background:var(--surface2);border:1px solid var(--border);border-radius:8px;padding:.25rem;z-index:300;min-width:10.625rem;box-shadow:0 .5rem 2rem rgba(0,0,0,.55);display:none}