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2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 | import {app} from "/scripts/app.js";
import {api} from "/scripts/api.js";
import {
H3_CONTEXT_LENGTHS,
MAX_SHOTS,
automaticSceneColor,
calculatePlanTiming,
derivedSceneSeed,
duplicateShot,
formatClock,
makeShot,
moveShot,
removePlanShot,
parsePlanJson,
planToJson,
promptTextToLines,
promptValueToText,
randomSceneSeed,
safeShotId,
sceneContextLength,
sceneContinuationMode,
sceneLoRARoute,
sceneVisualContextSource,
sceneVisualContextLeadFrames,
sceneVisualContextLeadSource,
scenePromptSeedMode,
sceneVideoBlendFrames,
setScenePromptSeedMode,
setShotLengthMode,
setSharedPrompt,
shotLengthMode,
sharedPrompt,
visualContextCompositions,
} from "./h3_chain_plan_core.mjs?v=0.6.5";
import {availableReferenceRecords} from "./h3_reference_preview_core.mjs?v=0.6.2";
import {
applySceneAudioOverride,
applySceneLipSync,
sceneLipSyncMode,
applySceneTransitionPreset,
primaryTransitionOptions,
sceneAudioOverride,
sceneAudioPolicy,
sceneTransitionPreset,
transitionPresetLabel,
} from "./h3_policy_core.mjs?v=0.6.6";
import {
resolveAudioContextLength,
resolveAudioPolicy,
resolveTransitionPolicy,
} from "./h3_socket_presentation_core.mjs?v=0.6.6";
import {
availableLoRARoutes,
loraRouteLabel,
} from "./h3_lora_scheduler_core.mjs?v=0.6.2";
import {
MODERN_PLAN_NODE as MODERN_NODE_NAME,
MODERN_PLAN_WIDGET_NAMES as MODERN_BACKING_WIDGETS,
upgradeLegacyPlanNode,
} from "./h3_plan_upgrade_core.mjs?v=0.6.2";
// This scene editor is an original implementation. Its quick @ reference and
// # dialogue interactions are inspired by nkxx188/ComfyUI-MiniMaxH3-Easy,
// distributed under the MIT License. See THIRD_PARTY_NOTICES.md.
const EXTENSION = "minimax_h3_context_loop.chain_plan_editor";
const NODE_NAME = "MiniMaxH3ChainPlan";
const NODE_NAMES = new Set([NODE_NAME, MODERN_NODE_NAME]);
const MIN_WIDTH = 700;
const EDITOR_HEIGHT = 650;
const SCENE_COLOR_PROPERTY = "h3_chain_scene_colors";
const LAYOUT_PROPERTY = "h3_chain_plan_layout";
function injectStyles() {
if (document.getElementById("h3-chain-plan-editor-style")) return;
const style = document.createElement("style");
style.id = "h3-chain-plan-editor-style";
style.textContent = `
.h3c-editor {
--h3c-bg: color-mix(in srgb, var(--comfy-menu-bg, #202124) 90%, #111827);
--h3c-panel: color-mix(in srgb, var(--comfy-input-bg, #111827) 84%, #24304a);
--h3c-border: color-mix(in srgb, var(--border-color, #555) 70%, #7c8db5);
--h3c-text: var(--input-text, #e8eaf0);
--h3c-muted: color-mix(in srgb, var(--h3c-text) 58%, transparent);
--h3c-accent: #7fa8ff;
box-sizing: border-box;
width: 100%;
height: 100%;
max-height: 100%;
min-height: 0;
overflow: auto;
contain: layout paint;
padding: 10px;
border: 1px solid var(--h3c-border);
border-radius: 8px;
background: var(--h3c-bg);
color: var(--h3c-text);
font: 12px/1.35 system-ui, sans-serif;
scrollbar-gutter: stable;
}
.h3c-editor *, .h3c-editor *::before, .h3c-editor *::after { box-sizing: border-box; }
.h3c-editor input, .h3c-editor textarea, .h3c-editor select, .h3c-editor button {
color: var(--h3c-text);
font: inherit;
}
.h3c-editor input, .h3c-editor textarea, .h3c-editor select {
width: 100%;
min-width: 0;
padding: 6px 7px;
border: 1px solid var(--h3c-border);
border-radius: 5px;
background: var(--comfy-input-bg, #15171d);
}
.h3c-editor textarea { resize: vertical; line-height: 1.45; }
.h3c-editor button {
padding: 5px 8px;
border: 1px solid var(--h3c-border);
border-radius: 5px;
background: var(--comfy-input-bg, #252832);
cursor: pointer;
white-space: nowrap;
}
.h3c-editor button:hover { border-color: var(--h3c-accent); }
.h3c-editor button:disabled { cursor: not-allowed; opacity: .4; }
.h3c-header, .h3c-toolbar, .h3c-card-head, .h3c-prompt-tools,
.h3c-json-actions, .h3c-footer { display: flex; align-items: center; gap: 6px; }
.h3c-header { justify-content: space-between; margin-bottom: 8px; }
.h3c-header-actions { display:flex; align-items:center; justify-content:flex-end;
gap:7px; min-width:0; }
.h3c-open-output { display:inline-flex; align-items:center; gap:5px;
padding:4px 7px !important; }
.h3c-folder-icon { width:15px; height:15px; flex:none; fill:none;
stroke:currentColor; stroke-width:1.8; stroke-linecap:round;
stroke-linejoin:round; }
.h3c-title { font-size: 15px; font-weight: 700; }
.h3c-summary { color: var(--h3c-muted); text-align: right; }
.h3c-external-plan {
margin-bottom: 8px;
padding: 7px 9px;
border: 1px solid color-mix(in srgb, var(--h3c-accent) 65%, var(--h3c-border));
border-radius: 6px;
background: color-mix(in srgb, var(--h3c-accent) 12%, var(--h3c-panel));
color: var(--h3c-text);
}
.h3c-external-plan strong { color: var(--h3c-accent); }
.h3c-section {
margin-bottom: 9px;
padding: 9px;
border: 1px solid var(--h3c-border);
border-radius: 7px;
background: var(--h3c-panel);
}
.h3c-settings { display:none; }
.h3c-settings.h3c-open { display:block; }
.h3c-settings-head { display:flex; align-items:center; gap:8px;
margin-bottom:8px; }
.h3c-settings-head strong { font-size:13px; }
.h3c-policy-status { margin-left:auto; color:var(--h3c-muted); }
.h3c-policy-status.h3c-missing { color:#ffb4b8; }
.h3c-settings-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr));
gap:8px; }
.h3c-settings-group { min-width:0; padding:8px; border:1px solid var(--h3c-border);
border-radius:6px; background:var(--h3c-bg); }
.h3c-settings-group-title { margin-bottom:7px; color:var(--h3c-accent);
font-weight:700; }
.h3c-settings-fields { display:grid; grid-template-columns:repeat(2,minmax(0,1fr));
gap:7px; }
.h3c-settings-fields .h3c-wide { grid-column:1 / -1; }
.h3c-managed-note { margin-top:6px; color:var(--h3c-muted); }
.h3c-label { display: block; margin-bottom: 4px; color: var(--h3c-muted); font-weight: 650; }
.h3c-help { margin-top: 4px; color: var(--h3c-muted); }
.h3c-prefix { min-height: 88px; }
.h3c-toolbar { position: sticky; top: -10px; z-index: 4; padding: 7px 0; background: var(--h3c-bg); }
.h3c-toolbar .h3c-spacer { flex: 1; }
.h3c-card {
--h3c-scene-color: var(--h3c-accent);
margin-bottom: 9px;
padding: 8px;
border: 1px solid color-mix(in srgb, var(--h3c-scene-color) 58%, var(--h3c-border));
border-left: 4px solid var(--h3c-scene-color);
border-radius: 7px;
background:
linear-gradient(90deg, color-mix(in srgb, var(--h3c-scene-color) 7%, transparent), transparent 140px),
var(--h3c-panel);
}
.h3c-card.h3c-invalid { border-left-color: #ff6b72; }
.h3c-card.h3c-drag-over { outline: 2px solid var(--h3c-accent); }
.h3c-card-head { margin-bottom: 7px; }
.h3c-drag { cursor: grab; user-select: none; padding: 4px 3px; color: var(--h3c-muted); }
.h3c-index { min-width: 58px; font-weight: 700; }
.h3c-color {
width: 23px !important;
min-width: 23px !important;
height: 23px;
padding: 1px !important;
border-radius: 50% !important;
cursor: pointer;
}
.h3c-color::-webkit-color-swatch-wrapper { padding: 1px; }
.h3c-color::-webkit-color-swatch { border: 0; border-radius: 50%; }
.h3c-color::-moz-color-swatch { border: 0; border-radius: 50%; }
.h3c-id { flex: 1; }
.h3c-timing { color: var(--h3c-muted); white-space: nowrap; }
.h3c-length-row { display: grid; grid-template-columns: 115px minmax(120px, 1fr) 190px; gap: 7px; align-items: center; margin-bottom: 7px; }
.h3c-prompt { min-height: 112px; }
.h3c-prompt-tools { position: relative; margin: 5px 0 2px; }
.h3c-prompt-tools .h3c-hint { color: var(--h3c-muted); margin-left: auto; }
.h3c-ref-menu {
display: none;
flex-wrap: wrap;
gap: 4px;
margin-top: 6px;
padding: 6px;
border: 1px solid var(--h3c-border);
border-radius: 6px;
background: var(--h3c-bg);
}
.h3c-ref-menu.h3c-open { display: flex; }
.h3c-ref-menu button { padding: 3px 6px; color: var(--h3c-accent); }
.h3c-seed-control { display:grid; grid-template-columns:minmax(210px,1fr) auto auto;
align-items:center; gap:6px; }
.h3c-seed-status { grid-column:1 / -1; color:var(--h3c-muted);
overflow-wrap:anywhere; }
.h3c-boundary-fields { display:grid; grid-template-columns:minmax(220px,1fr)
minmax(180px,.7fr); gap:7px; margin-top:8px; }
.h3c-audio-fields { display:grid; grid-template-columns:repeat(3,minmax(150px,1fr));
gap:7px; margin-top:8px; }
.h3c-advanced-fields { display: none; grid-template-columns:repeat(4, minmax(140px, 1fr)); gap: 7px; margin-top: 8px; }
.h3c-editor.h3c-show-advanced .h3c-advanced-fields { display: grid; }
.h3c-errors { display: none; margin: 7px 0; padding: 7px; border-radius: 5px; color: #ffb4b8; background: #5d202866; white-space: pre-wrap; }
.h3c-errors.h3c-open { display: block; }
.h3c-json-panel { display: none; }
.h3c-json-panel.h3c-open { display: block; }
.h3c-json { min-height: 260px; font-family: ui-monospace, SFMono-Regular, Consolas, monospace !important; }
.h3c-json-actions { margin-top: 6px; }
.h3c-json-status { color: var(--h3c-muted); }
.h3c-footer { justify-content: space-between; padding-top: 4px; color: var(--h3c-muted); }
.h3c-footer a { color: var(--h3c-accent); }
@media (max-width: 650px) {
.h3c-length-row, .h3c-advanced-fields,
.h3c-seed-control, .h3c-boundary-fields, .h3c-audio-fields,
.h3c-settings-grid, .h3c-settings-fields {
grid-template-columns: 1fr; }
.h3c-settings-fields .h3c-wide { grid-column:1; }
.h3c-seed-status { grid-column:1; }
.h3c-card-head { flex-wrap: wrap; }
.h3c-timing { width: 100%; }
}
`;
document.head.appendChild(style);
}
function element(tag, className, text) {
const item = document.createElement(tag);
if (className) item.className = className;
if (text !== undefined) item.textContent = text;
return item;
}
function button(label, title, action) {
const item = element("button", "", label);
item.type = "button";
if (title) item.title = title;
item.addEventListener("click", action);
return item;
}
function folderOpenIcon() {
const namespace = "http://www.w3.org/2000/svg";
const icon = document.createElementNS(namespace, "svg");
icon.classList.add("h3c-folder-icon");
icon.setAttribute("viewBox", "0 0 24 24");
icon.setAttribute("aria-hidden", "true");
const folder = document.createElementNS(namespace, "path");
folder.setAttribute(
"d",
"M3.5 8.5V6.25A1.75 1.75 0 0 1 5.25 4.5h4.1l2.1 2.25h7.3a1.75 1.75 0 0 1 1.75 1.75v1",
);
const opening = document.createElementNS(namespace, "path");
opening.setAttribute(
"d",
"M4.5 9.5h15.35a1.35 1.35 0 0 1 1.3 1.72l-2.05 7.1a1.6 1.6 0 0 1-1.54 1.18H5.4a1.6 1.6 0 0 1-1.57-1.3L2.9 13.15A3.1 3.1 0 0 1 4.5 9.5Z",
);
icon.append(folder, opening);
return icon;
}
function setOutputButtonLabel(item, label, showIcon = false) {
item.replaceChildren();
if (showIcon) item.append(folderOpenIcon());
item.append(document.createTextNode(label));
}
function field(label, control) {
const wrap = element("label", "");
wrap.append(element("span", "h3c-label", label), control);
return wrap;
}
function numberInput(value, options = {}) {
const input = element("input");
input.type = "number";
input.value = value ?? "";
for (const [key, setting] of Object.entries(options)) input[key] = setting;
return input;
}
function selectInput(value, choices) {
const select = element("select");
for (const [choice, label] of choices) {
const option = element("option", "", label);
option.value = choice;
select.append(option);
}
select.value = String(value ?? "");
return select;
}
function widgetValue(node, name, fallback) {
const widget = node.widgets?.find((item) => item.name === name);
return widget?.value ?? fallback;
}
function inputConnected(node, name) {
const input = node.inputs?.find((item) => item.name === name);
return input?.link !== null && input?.link !== undefined;
}
function setWidgetValue(node, name, value) {
const widget = node.widgets?.find((item) => item.name === name);
if (!widget || Object.is(widget.value, value)) return;
widget.value = value;
widget.callback?.(value);
node.graph?.setDirtyCanvas?.(true, true);
app.graph?.setDirtyCanvas?.(true, true);
}
function collapseWidget(widget) {
widget._h3OriginalType ??= widget.type;
widget._h3OriginalComputeSize ??= widget.computeSize;
widget._h3OriginalDraw ??= widget.draw;
widget.hidden = true;
widget.type = "hidden";
widget.computeSize = () => [0, -4];
// Modern and legacy canvas paths do not agree on whether a hidden widget
// may still draw. This field is internal editor state; preserve its value
// for serialization while ensuring it can never cover native settings.
widget.draw = () => {};
// Multiline STRING widgets are real DOM textareas in current ComfyUI.
// Collapsing only the LiteGraph geometry leaves that textarea floating at
// its previous coordinates, over the scene editor. Hide both possible DOM
// handles while retaining widget.value for workflow serialization.
const elements = new Set([widget.inputEl, widget.element]);
for (const item of elements) {
if (!item?.style) continue;
item.style.setProperty("display", "none", "important");
item.style.setProperty("pointer-events", "none", "important");
item.setAttribute?.("aria-hidden", "true");
}
// Current ComfyUI places DOM widgets in a separate Vue-owned wrapper.
// Its widget object is markRaw, so changing `hidden` can leave that empty
// wrapper pointer-active until a later renderer transition. Unregister
// only the DOM surface: this widget deliberately remains in node.widgets
// with its value and callback intact for workflow serialization.
if (widget.element && widget.id && typeof widget.onRemove === "function") {
widget.onRemove();
}
}
function collapseModernBackingWidgets(node) {
if ((node.comfyClass ?? node.type) !== MODERN_NODE_NAME) return;
for (const name of MODERN_BACKING_WIDGETS) {
const widget = node.widgets?.find((item) => item.name === name);
if (widget) collapseWidget(widget);
}
}
function setProjectAssetManagedWidget(widget, managed) {
if (!widget) return;
widget._h3ProjectAssetOriginal ??= {
hidden: widget.hidden,
type: widget.type,
computeSize: widget.computeSize,
draw: widget.draw,
disabled: widget.disabled,
};
if (widget._h3ProjectAssetManaged === managed) return;
widget._h3ProjectAssetManaged = managed;
const original = widget._h3ProjectAssetOriginal;
if (managed) {
widget.hidden = true;
widget.type = "hidden";
widget.computeSize = () => [0, -4];
widget.draw = () => {};
widget.disabled = true;
} else {
widget.hidden = original.hidden;
widget.type = original.type;
widget.computeSize = original.computeSize;
widget.draw = original.draw;
widget.disabled = original.disabled;
}
for (const item of new Set([widget.inputEl, widget.element])) {
if (!item?.style) continue;
if (managed) {
item.style.setProperty("display", "none", "important");
item.style.setProperty("pointer-events", "none", "important");
item.setAttribute?.("aria-hidden", "true");
} else {
item.style.removeProperty("display");
item.style.removeProperty("pointer-events");
item.removeAttribute?.("aria-hidden");
}
}
}
function colorOverrides(node) {
node.properties ??= {};
const current = node.properties[SCENE_COLOR_PROPERTY];
if (!current || typeof current !== "object" || Array.isArray(current)) {
node.properties[SCENE_COLOR_PROPERTY] = {};
}
return node.properties[SCENE_COLOR_PROPERTY];
}
function planLayout(node) {
node.properties ??= {};
const current = node.properties[LAYOUT_PROPERTY];
if (!current || typeof current !== "object" || Array.isArray(current)) {
node.properties[LAYOUT_PROPERTY] = {};
}
const layout = node.properties[LAYOUT_PROPERTY];
if (!layout.promptHeights || typeof layout.promptHeights !== "object"
|| Array.isArray(layout.promptHeights)) {
layout.promptHeights = {};
}
return layout;
}
function sceneColorKey(shot, index) {
return safeShotId(shot?.id, `clip_${String(index + 1).padStart(4, "0")}`);
}
function sceneColor(node, shot, index) {
const override = colorOverrides(node)[sceneColorKey(shot, index)];
return /^#[0-9a-f]{6}$/i.test(String(override || ""))
? String(override).toLowerCase()
: automaticSceneColor(index);
}
function insertText(textarea, text, selectionOffset = text.length) {
const start = textarea.selectionStart ?? textarea.value.length;
const end = textarea.selectionEnd ?? start;
textarea.setRangeText(text, start, end, "end");
const caret = start + selectionOffset;
textarea.setSelectionRange(caret, caret);
textarea.dispatchEvent(new Event("input", {bubbles: true}));
textarea.focus();
}
function insertDialogue(textarea) {
const start = textarea.selectionStart ?? textarea.value.length;
const end = textarea.selectionEnd ?? start;
const selected = textarea.value.slice(start, end);
const markup = `<d>${selected}</d>`;
const offset = selected ? markup.length : 3;
insertText(textarea, markup, offset);
}
function downloadJson(value, filename) {
const blob = new Blob([value], {type: "application/json"});
const url = URL.createObjectURL(blob);
const link = document.createElement("a");
link.href = url;
link.download = filename;
link.click();
setTimeout(() => URL.revokeObjectURL(url), 0);
}
function replaceWithModernPlan(node) {
const createNode = globalThis.LiteGraph?.createNode;
const result = upgradeLegacyPlanNode(node, {
createNode,
confirmUpgrade: () => (
typeof globalThis.confirm !== "function" || globalThis.confirm(
"Replace this Plan with MiniMax H3 Plan (Modern)?\n\n" +
"Scenes, supported settings, position, and links are preserved. " +
"Legacy fallback settings are intentionally not copied.",
)
),
});
if (result.ok) {
app.canvas?.selectNode?.(result.node);
return;
}
if (result.reason === "cancelled") return;
const messages = {
policy_required:
"Connect MiniMax H3 Generation Profile to this Plan before upgrading. " +
"The Modern Plan has no legacy continuity or audio fallbacks, so the " +
"original node was kept unchanged.",
modern_unregistered:
"MiniMax H3 Plan (Modern) is not registered. Restart ComfyUI after " +
"updating the node pack.",
create_unavailable:
"ComfyUI could not create the Modern Plan node.",
};
globalThis.alert?.(messages[result.reason] ?? "The Plan could not be upgraded.");
}
function mountEditor(node) {
if (node._h3ChainEditor || typeof node.addDOMWidget !== "function") return;
const planWidget = node.widgets?.find((widget) => widget.name === "plan_json");
if (!planWidget) return;
const modern = (node.comfyClass ?? node.type) === MODERN_NODE_NAME;
injectStyles();
const root = element("div", "h3c-editor");
root.title = "Build an ordered MiniMax H3 scene plan. Hover individual controls for wiring, timing, and formatting guidance.";
for (const eventName of [
"pointerdown", "pointerup", "mousedown", "mouseup", "click", "dblclick",
]) {
root.addEventListener(eventName, (event) => event.stopPropagation());
}
root.addEventListener("wheel", (event) => event.stopPropagation());
const savedLayout = planLayout(node);
const state = {
plan: null,
advanced: Boolean(savedLayout.advanced),
jsonOpen: Boolean(savedLayout.jsonOpen),
settingsOpen: modern && savedLayout.settingsOpen !== false,
lastWidgetValue: "",
syncing: false,
draggedIndex: null,
resizeObservers: [],
seedRefreshers: [],
};
node._h3ChainEditor = state;
collapseWidget(planWidget);
collapseModernBackingWidgets(node);
const domWidget = node.addDOMWidget("h3_chain_scene_editor", "h3-chain-editor", root, {
serialize: false,
hideOnZoom: false,
getMinHeight: () => EDITOR_HEIGHT,
});
domWidget.serialize = false;
function graphDirty() {
node.graph?.setDirtyCanvas?.(true, true);
app.graph?.setDirtyCanvas?.(true, true);
}
function savePanelState() {
const layout = planLayout(node);
layout.advanced = state.advanced;
layout.jsonOpen = state.jsonOpen;
layout.settingsOpen = state.settingsOpen;
graphDirty();
}
function disconnectResizeObservers() {
for (const observer of state.resizeObservers) observer.disconnect?.();
state.resizeObservers = [];
}
function bindTextareaHeight(textarea, key, minimum) {
const heights = planLayout(node).promptHeights;
const saved = Number(heights[key]);
if (Number.isFinite(saved) && saved >= minimum) {
textarea.style.height = `${Math.round(saved)}px`;
}
if (typeof ResizeObserver !== "function") return;
let initialized = false;
const observer = new ResizeObserver(() => {
if (!textarea.isConnected) return;
const next = Math.round(textarea.offsetHeight);
if (!Number.isFinite(next) || next < minimum) return;
if (!initialized) {
initialized = true;
return;
}
const current = planLayout(node).promptHeights;
if (Number(current[key]) === next) return;
current[key] = next;
node.properties[LAYOUT_PROPERTY] = {
...planLayout(node), promptHeights: {...current},
};
graphDirty();
});
observer.observe(textarea);
state.resizeObservers.push(observer);
}
function saveSceneColor(key, value) {
const colors = colorOverrides(node);
if (value) colors[key] = value.toLowerCase();
else delete colors[key];
node.properties[SCENE_COLOR_PROPERTY] = {...colors};
graphDirty();
}
function applyResponsiveSize() {
collapseWidget(planWidget);
collapseModernBackingWidgets(node);
const width = Math.max(Number(node.size?.[0]) || MIN_WIDTH, MIN_WIDTH);
// Preserve the workflow/user-selected height. The DOM widget receives
// all free vertical space above its minimum, so taller nodes reveal
// more scene cards and shorter nodes scroll internally.
const height = Math.max(Number(node.size?.[1]) || 0, EDITOR_HEIGHT + 120);
// Call even when dimensions are unchanged so ComfyUI recomputes the
// DOM widget's free-space allocation after plan_json was collapsed.
node.setSize?.([width, height]);
graphDirty();
}
function scheduleResponsiveSize() {
// Workflow configuration restores serialized dimensions after
// onNodeCreated. Reallocate the DOM viewport once layout has settled.
requestAnimationFrame(() => requestAnimationFrame(applyResponsiveSize));
setTimeout(applyResponsiveSize, 150);
}
function syncProjectAssetManagedWidgets() {
const managed = inputConnected(node, "project_assets");
setProjectAssetManagedWidget(
node.widgets?.find((item) => item.name === "run_name"), managed,
);
setProjectAssetManagedWidget(
node.widgets?.find((item) => item.name === "generation_fingerprint"),
managed,
);
root.classList.toggle("h3c-project-assets-managed", managed);
root.title = managed
? "Run name and reference fingerprint are managed by the connected Project Assets node."
: "Build an ordered MiniMax H3 scene plan. Hover individual controls for wiring, timing, and formatting guidance.";
}
function currentSettings() {
const transition = resolveTransitionPolicy(node);
const audioPolicy = resolveAudioPolicy(node);
return {
contextLength: transition.known
? transition.contextLength
: widgetValue(node, "context_length", 22),
audioContextLength: resolveAudioContextLength(node),
videoBlendFrames: widgetValue(node, "video_blend_frames", 0),
encodeMode: widgetValue(node, "encode_mode", "video"),
anchorMode: widgetValue(node, "anchor_mode", "head"),
continuationMode: transition.known
? transition.continuationMode
: widgetValue(node, "continuation_mode", "guide"),
generatedContinuity: audioPolicy.known
? audioPolicy.generatedContinuity : "on",
sourceAudioTarget: audioPolicy.known
? audioPolicy.sourceAudioTarget ?? "off" : "off",
transitionPreset: transition.known ? transition.preset : "custom",
audioPolicy,
defaultDurationSeconds: widgetValue(node, "default_duration_seconds", 15),
defaultSteps: widgetValue(node, "default_steps", 20),
};
}
function timing() {
return calculatePlanTiming(state.plan, currentSettings());
}
function syncPlan() {
if (!state.plan) return;
const value = planToJson(state.plan);
state.syncing = true;
planWidget.value = value;
state.lastWidgetValue = value;
state.syncing = false;
const jsonArea = root.querySelector(".h3c-json");
if (jsonArea && document.activeElement !== jsonArea) jsonArea.value = value;
updateTiming();
graphDirty();
}
function updateTiming() {
if (!state.plan) return;
const result = timing();
const summary = root.querySelector(".h3c-summary");
if (summary) {
summary.textContent = `${result.shots.length} scenes · ${result.totalFrames} delivered frames · ${formatClock(result.totalSeconds)}`;
}
for (const row of result.shots) {
const card = root.querySelector(`.h3c-card[data-index="${row.index - 1}"]`);
if (!card) continue;
const label = card.querySelector(".h3c-timing");
if (label) {
label.textContent = `${row.rawFrames || "—"} raw / ${row.deliveredFrames || "—"} delivered · ${formatClock(row.deliveredSeconds)}${row.loraRoute === "base" ? "" : ` · LoRA ${row.loraRoute.toUpperCase()}`}`;
label.title = row.errors.join("\n") ||
`Generation starts at delivered frame ${row.generationStartFrame}. ` +
`The incoming assembly boundary blends ${row.videoBlendFrames} frame(s).`;
}
card.classList.toggle("h3c-invalid", row.errors.length > 0);
}
const errors = root.querySelector(".h3c-errors");
if (errors) {
errors.textContent = result.errors.join("\n");
errors.classList.toggle("h3c-open", result.errors.length > 0);
}
}
function promptTools(textarea, scene = null) {
const wrap = element("div", "h3c-prompt-tools");
const references = button("@ Reference", "Insert a MiniMax reference tag", () => {
const opening = !menu.classList.contains("h3c-open");
if (opening) renderReferenceMenu();
menu.classList.toggle("h3c-open", opening);
});
const dialogue = button("# Dialogue", "Wrap the selection in <d> dialogue tags", () => {
insertDialogue(textarea);
});
const hint = element("span", "h3c-hint", "Shortcuts: @ reference · # dialogue");
const menu = element("div", "h3c-ref-menu");
function renderReferenceMenu() {
menu.replaceChildren();
const requestedScene = scene ?? 1;
const referenceData = availableReferenceRecords(
node, requestedScene, {
includeInactive: true,
prompt: [
scene == null ? "" : sharedPrompt(state.plan).text.trim(),
textarea.value.trim(),
].filter(Boolean).join("\n\n"),
},
);
const {mode} = referenceData;
const records = mode === "tagged" || scene == null
? referenceData.records
: referenceData.records.filter((record) => record.active);
if (!records.length) {
menu.append(element(
"span", "h3c-help",
scene == null
? "No references connected to a downstream Ref2VA/I2V node."
: `No connected references are active in scene ${scene}.`,
));
return;
}
menu.append(element(
"span", "h3c-help",
mode === "tagged"
? "Connected prompt-driven references. Insert an @tag to activate that asset in this scene; it compiles to a native H3 label."
: mode === "scheduled"
? "Connected scheduled references only. @aliases are optional authoring shortcuts that compile to native labels; the scheduler inserts no prompt text."
: "Connected core references only. These use native <Picture/Video/Audio N> labels; @aliases are not required.",
));
for (const record of records) {
const aliasMode = mode === "scheduled" || mode === "tagged";
const mapping = aliasMode && record.label
? ` → ${record.label}` : "";
menu.append(button(
`${record.token}${mapping}`,
aliasMode
? `Insert ${record.token}. It ${mode === "tagged" ? "activates this reference and " : ""}compiles to ${record.label ?? "a scene-local native label"}.`
: `Insert ${record.token} for the connected core reference.`,
() => {
insertText(textarea, record.token);
menu.classList.remove("h3c-open");
},
));
}
}
textarea.addEventListener("keydown", (event) => {
if (event.ctrlKey || event.metaKey || event.altKey) return;
if (event.key === "@") {
event.preventDefault();
renderReferenceMenu();
menu.classList.add("h3c-open");
references.focus();
} else if (event.key === "#") {
event.preventDefault();
insertDialogue(textarea);
}
});
wrap.append(references, dialogue, hint);
const group = element("div");
group.append(wrap, menu);
return group;
}
function renderCard(shot, index) {
const card = element("section", "h3c-card");
card.dataset.index = String(index);
card.style.setProperty("--h3c-scene-color", sceneColor(node, shot, index));
card.addEventListener("dragover", (event) => {
event.preventDefault();
card.classList.add("h3c-drag-over");
});
card.addEventListener("dragleave", () => card.classList.remove("h3c-drag-over"));
card.addEventListener("drop", (event) => {
event.preventDefault();
card.classList.remove("h3c-drag-over");
if (state.draggedIndex === null || state.draggedIndex === index) return;
moveShot(state.plan.shots, state.draggedIndex, index);
state.draggedIndex = null;
syncPlan();
render();
});
const head = element("div", "h3c-card-head");
const drag = element("span", "h3c-drag", "⠿");
drag.title = "Drag to reorder";
drag.draggable = true;
drag.addEventListener("dragstart", (event) => {
state.draggedIndex = index;
event.dataTransfer.effectAllowed = "move";
event.dataTransfer.setData("text/plain", String(index));
});
drag.addEventListener("dragend", () => {
state.draggedIndex = null;
root.querySelectorAll(".h3c-drag-over").forEach((item) => item.classList.remove("h3c-drag-over"));
});
const ordinal = element("span", "h3c-index", `Scene ${index + 1}`);
const color = element("input", "h3c-color");
color.type = "color";
color.value = sceneColor(node, shot, index);
color.title = "Scene border color. Double-click to restore the automatic color.";
color.setAttribute("aria-label", `Scene ${index + 1} border color`);
color.addEventListener("input", () => {
saveSceneColor(sceneColorKey(shot, index), color.value);
card.style.setProperty("--h3c-scene-color", color.value);
});
color.addEventListener("dblclick", (event) => {
event.preventDefault();
saveSceneColor(sceneColorKey(shot, index), null);
color.value = automaticSceneColor(index);
card.style.setProperty("--h3c-scene-color", color.value);
});
const id = element("input", "h3c-id");
id.type = "text";
id.placeholder = `clip_${String(index + 1).padStart(4, "0")}`;
id.value = shot.id ?? "";
id.title = "Stable scene ID used in checkpoint filenames and resume validation. Keep it unique and avoid changing it after rendering.";
id.addEventListener("input", () => {
const previousKey = sceneColorKey(shot, index);
const previousId = safeShotId(
shot.id, `clip_${String(index + 1).padStart(4, "0")}`,
);
if (id.value) shot.id = id.value;
else delete shot.id;
const nextId = safeShotId(
shot.id, `clip_${String(index + 1).padStart(4, "0")}`,
);
for (const chapter of state.plan.chapters ?? []) {
if (chapter.start_scene_id === previousId) {
chapter.start_scene_id = nextId;
}
}
const nextKey = sceneColorKey(shot, index);
const colors = colorOverrides(node);
if (previousKey !== nextKey && colors[previousKey]) {
colors[nextKey] = colors[previousKey];
delete colors[previousKey];
node.properties[SCENE_COLOR_PROPERTY] = {...colors};
}
const heights = planLayout(node).promptHeights;
const previousPromptKey = `scene:${previousKey}`;
const nextPromptKey = `scene:${nextKey}`;
if (previousPromptKey !== nextPromptKey && heights[previousPromptKey]) {
heights[nextPromptKey] = heights[previousPromptKey];
delete heights[previousPromptKey];
}
syncPlan();
void refreshSeedStatus();
});
const timingLabel = element("span", "h3c-timing");
const up = button("↑", "Move scene up", () => {
moveShot(state.plan.shots, index, index - 1);
syncPlan();
render();
});
up.disabled = index === 0;
const down = button("↓", "Move scene down", () => {
moveShot(state.plan.shots, index, index + 1);
syncPlan();
render();
});
down.disabled = index === state.plan.shots.length - 1;
const copy = button("Duplicate", "Duplicate this scene", () => {
if (state.plan.shots.length >= MAX_SHOTS) return;
duplicateShot(state.plan.shots, index);
syncPlan();
render();
});
const remove = button("Delete", "Delete this scene", () => {
if (state.plan.shots.length <= 1) return;
if (!window.confirm(`Delete scene ${index + 1}?`)) return;
saveSceneColor(sceneColorKey(shot, index), null);
removePlanShot(state.plan, index);
syncPlan();
render();
});
remove.disabled = state.plan.shots.length <= 1;
head.append(drag, color, ordinal, id, timingLabel, up, down, copy, remove);
const lengthRow = element("div", "h3c-length-row");
const mode = element("select");
mode.title = "Choose whether this scene inherits the plan duration, requests seconds that are rounded up, or specifies an exact H3-valid frame count.";
for (const [value, label] of [["default", "Plan default"], ["seconds", "Seconds"], ["frames", "Exact frames"]]) {
const option = element("option", "", label);
option.value = value;
mode.append(option);
}
mode.value = shotLengthMode(shot);
const value = numberInput("", {min: "0.01", step: "0.01"});
const lengthHelp = element("span", "h3c-help");
function refreshLengthControl() {
const selected = shotLengthMode(shot);
mode.value = selected;
value.disabled = selected === "default";
if (selected === "seconds") {
value.min = "0.01";
value.max = String(3592 / 24);
value.step = "0.01";
value.value = shot.duration_seconds ?? "";
lengthHelp.textContent = "Rounded up to 17k+5.";
value.title = "Requested seconds. The backend rounds up to the next H3-valid 17k+5 frame length at 24 fps.";
} else if (selected === "frames") {
value.min = "5";
value.max = "3592";
value.step = "17";
value.value = shot.length ?? shot.frames ?? "";
lengthHelp.textContent = "Must satisfy length % 17 = 5.";
value.title = "Exact raw generation frames. Valid values satisfy frames % 17 = 5 and range from 5 to 3592.";
} else {
value.value = "";
lengthHelp.textContent = "Uses the Plan node default.";
value.title = "Disabled because this scene inherits the Plan node default duration.";
}
}
mode.addEventListener("change", () => {
const fallback = widgetValue(node, "default_duration_seconds", 15);
setShotLengthMode(shot, mode.value, fallback);
refreshLengthControl();
syncPlan();
});
value.addEventListener("input", () => {
if (!value.value) return;
if (mode.value === "seconds") shot.duration_seconds = Number(value.value);
if (mode.value === "frames") {
shot.length = Number(value.value);
delete shot.frames;
}
syncPlan();
});
refreshLengthControl();
lengthRow.append(mode, value, lengthHelp);
const prompt = element("textarea", "h3c-prompt");
prompt.value = promptValueToText(shot.prompt, `Scene ${index + 1} prompt`);
prompt.placeholder = "Optional with a shared prompt; otherwise describe this scene…";
prompt.title = "Scene-specific action, camera, performance, dialogue, and ending continuity. The shared prompt is automatically prepended; at least one of the two must contain text.";
prompt.spellcheck = true;
prompt.addEventListener("input", () => {
shot.prompt = promptTextToLines(prompt.value);
syncPlan();
});
bindTextareaHeight(
prompt, `scene:${sceneColorKey(shot, index)}`, 112,
);
const promptSeedControl = element("div", "h3c-seed-control");
const promptSeedMode = element("select");
for (const [value, label] of [
["inherit", "Stable derived"],
["fixed", "Fixed scene seed"],
["randomize", "Randomize each queue"],
]) {
const option = element("option", "", label);
option.value = value;
promptSeedMode.append(option);
}
const promptSeed = element("input");
promptSeed.type = "text";
promptSeed.inputMode = "numeric";
promptSeed.placeholder = "Scene prompt seed";
promptSeed.title = "Unsigned 64-bit seed used only to choose this scene's {one|two} prompt alternatives. It never changes the sampler seed.";
const newPromptSeed = button(
"New random",
"Create and store a new fixed alternative-choice seed for only this scene",
() => {
shot.prompt_seed_mode = "fixed";
shot.prompt_seed = randomSceneSeed();
refreshPromptSeedControl();
syncPlan();
},
);
function refreshPromptSeedControl() {
const selected = scenePromptSeedMode(shot);
promptSeedMode.value = selected;
promptSeed.disabled = selected !== "fixed";
newPromptSeed.disabled = selected !== "fixed";
promptSeed.value = selected === "fixed" ? (shot.prompt_seed ?? "") : "";
if (selected === "inherit") {
promptSeed.title = "This scene derives a stable alternative-choice seed from its scene index and ID.";
} else if (selected === "randomize") {
promptSeed.title = "A fresh alternative-choice seed is generated whenever this Plan is queued. The exact resolved seed is still saved with the scene checkpoint.";
} else {
promptSeed.title = "Unsigned 64-bit seed used only to choose this scene's {one|two} prompt alternatives. It never changes the sampler seed.";
}
}
promptSeedMode.addEventListener("change", () => {
setScenePromptSeedMode(shot, promptSeedMode.value);
refreshPromptSeedControl();
syncPlan();
});
promptSeed.addEventListener("change", () => {
if (promptSeed.value.trim()) shot.prompt_seed = promptSeed.value.trim();
else shot.prompt_seed = randomSceneSeed();
setScenePromptSeedMode(shot, "fixed");
refreshPromptSeedControl();
syncPlan();
});
promptSeedControl.append(promptSeedMode, promptSeed, newPromptSeed);
refreshPromptSeedControl();
const seedControl = element("div", "h3c-seed-control");
const seed = element("input");
seed.type = "text";
seed.inputMode = "numeric";
seed.placeholder = "Blank = stable derived seed";
seed.value = shot.seed ?? "";
seed.title = "Explicit unsigned 64-bit seed for this scene. Leave blank to use the displayed stable seed derived from base_seed, scene index, and scene ID.";
const seedStatus = element("span", "h3c-seed-status");
async function refreshSeedStatus() {
const explicit = seed.value.trim();
useDerivedSeed.disabled = !explicit;
if (explicit) {
seedStatus.textContent = `Explicit seed: ${explicit}`;
seedStatus.title = "This exact seed is stored in plan_json.";
return;
}
const baseSeed = widgetValue(node, "base_seed", 0);
const shotId = safeShotId(
shot.id, `clip_${String(index + 1).padStart(4, "0")}`,
);
const request = `${baseSeed}:${index + 1}:${shotId}`;
seedStatus.dataset.request = request;
seedStatus.textContent = "Resolving stable derived seed…";
try {
const resolved = await derivedSceneSeed(baseSeed, index + 1, shotId);
if (seedStatus.isConnected && !seed.value.trim()
&& seedStatus.dataset.request === request) {
seedStatus.textContent = `Derived seed: ${resolved}`;
seedStatus.title = `Stable result of base_seed ${baseSeed}, scene ${index + 1}, and ID ${shotId}. It will repeat until one of those values changes.`;
}
} catch (error) {
seedStatus.textContent = error.message;
}
}
seed.addEventListener("input", () => {
if (seed.value.trim()) shot.seed = seed.value.trim();
else delete shot.seed;
syncPlan();
void refreshSeedStatus();
});
const randomizeSeed = button("New random", "Create and store a new explicit uint64 seed for only this scene", () => {
seed.value = randomSceneSeed();
shot.seed = seed.value;
syncPlan();
void refreshSeedStatus();
});
const useDerivedSeed = button("Use derived", "Remove this scene's explicit override and return to its stable base_seed-derived value", () => {
seed.value = "";
delete shot.seed;
syncPlan();
void refreshSeedStatus();
});
useDerivedSeed.disabled = !seed.value.trim();
seedControl.append(seed, randomizeSeed, useDerivedSeed, seedStatus);
state.seedRefreshers.push(refreshSeedStatus);
void refreshSeedStatus();
const loraRoute = element("select", "h3c-lora-route");
const selectedLoRARoute = sceneLoRARoute(shot);
for (const route of availableLoRARoutes(
node.graph ?? app.graph, [node], selectedLoRARoute,
)) {
const option = element("option", "", loraRouteLabel(route));
option.value = route;
loraRoute.append(option);
}
loraRoute.value = selectedLoRARoute;
loraRoute.title = "Select Base or a connected A-Z MODEL branch on MiniMax H3 Scene LoRA Scheduler. Connecting the scheduler's last empty route reveals the next one automatically; the scheduler routes already-patched models and does not load a LoRA itself.";
loraRoute.addEventListener("change", () => {
if (loraRoute.value === "base") delete shot.lora_route;
else shot.lora_route = loraRoute.value;
sceneLoRARoute(shot);
syncPlan();
});
const advanced = element("div", "h3c-advanced-fields");
const steps = numberInput(shot.steps ?? "", {min: "1", max: "10000", step: "1"});
steps.placeholder = String(widgetValue(node, "default_steps", 20));
steps.title = "Optional sampler-step override for only this scene. Leave blank to inherit the Plan node default.";
steps.addEventListener("input", () => {
if (steps.value) shot.steps = Number(steps.value);
else delete shot.steps;
syncPlan();
});
const context = element("select", "h3c-context");
const resolvedPlanSettings = currentSettings();
const planContextLength = Number(resolvedPlanSettings.contextLength);
function normalizeVisualLeadSpan() {
if (!Object.hasOwn(shot, "visual_context_lead_source")) return;
const resolved = sceneContextLength(shot, planContextLength);
const allowed = visualContextCompositions()
.filter((choice) => choice.total === resolved)
.map((choice) => choice.lead);
if (!allowed.length) {
delete shot.visual_context_lead_source;
delete shot.visual_context_lead_frames;
delete shot.visual_context_lead_start_frame;
return;
}
try {
sceneVisualContextLeadFrames(shot, resolved);
} catch (_error) {
shot.visual_context_lead_frames = allowed[0];
}
}
const incomingTransition = element("select", "h3c-incoming-transition");
const inheritedPreset = resolvedPlanSettings.transitionPreset;
const inheritOption = element(
"option", "",
`Inherit Chain Policy · ${transitionPresetLabel(inheritedPreset)}`,
);
inheritOption.value = "inherit";
incomingTransition.append(inheritOption);
for (const preset of primaryTransitionOptions()) {
const option = element(
"option", "",
`${preset.label} · ${preset.description}`,
);
option.value = preset.name;
incomingTransition.append(option);
}
function refreshIncomingTransition() {
const selected = sceneTransitionPreset(
shot, resolvedPlanSettings.continuationMode,
resolvedPlanSettings.contextLength,
resolvedPlanSettings.audioContextLength,
);
let custom = incomingTransition.querySelector(
'option[value="custom"]',
);
if (selected === "custom" && !custom) {
custom = element(
"option", "", transitionPresetLabel("custom"),
);
custom.value = "custom";
incomingTransition.append(custom);
}
incomingTransition.value = selected;
}
refreshIncomingTransition();
incomingTransition.title = "One semantic boundary choice. Inherit uses "
+ "the connected Chain Policy. Choosing a preset writes its tested "
+ "visual implementation/context pair and returns generated-audio "
+ "context to automatic behavior. Custom means this scene still "
+ "contains raw Advanced boundary overrides below.";
incomingTransition.addEventListener("change", () => {
if (incomingTransition.value === "custom") return;
applySceneTransitionPreset(shot, incomingTransition.value);
const nextContext = sceneContextLength(shot, planContextLength);
if (Object.hasOwn(shot, "video_blend_frames")
&& Number(shot.video_blend_frames) > nextContext) {
shot.video_blend_frames = nextContext;
}
normalizeVisualLeadSpan();
delete shot.visual_context_start_frame;
delete shot.visual_context_lead_start_frame;
syncPlan();
render();
});
for (const [value, label] of [
["", `Plan default · ${planContextLength}`],
["0", "0 · new visual"],
...H3_CONTEXT_LENGTHS.map((value) => [String(value), `${value} frames`]),
]) {
const option = element("option", "", label);
option.value = value;
context.append(option);
}
context.value = Object.hasOwn(shot, "context_length")
&& shot.context_length !== null ? String(shot.context_length) : "";
context.title = index === 0
? "Video context entering this scene. Blank inherits the Plan default. Zero makes scene 1 visually independent even when Existing Video Context is connected; the original may still be prepended during assembly."
: "Video frames carried from the preceding scene into this one. Blank inherits the Plan default; zero creates a visually new scene. Audio context is controlled separately.";
context.addEventListener("change", () => {
if (context.value === "") delete shot.context_length;
else shot.context_length = Number(context.value);
sceneContextLength(shot, planContextLength);
normalizeVisualLeadSpan();
delete shot.visual_context_start_frame;
delete shot.visual_context_lead_start_frame;
refreshBlendControl();
refreshIncomingTransition();
syncPlan();
render();
});
const visualSource = element("select", "h3c-visual-source");
if (index === 0) {
const option = element(
"option", "", "Existing Video Context (if connected)",
);
option.value = "";
visualSource.append(option);
visualSource.disabled = true;
} else {
const previous = element(
"option", "",
`Previous scene · ${index} ${safeShotId(
state.plan.shots[index - 1]?.id,
`clip_${String(index).padStart(4, "0")}`,
)}`,
);
previous.value = "";
visualSource.append(previous);
for (let sourceOffset = 0;
sourceOffset < index - 1; sourceOffset += 1) {
const sourceId = safeShotId(
state.plan.shots[sourceOffset]?.id,
`clip_${String(sourceOffset + 1).padStart(4, "0")}`,
);
const option = element(
"option", "",
`Scene ${sourceOffset + 1} · ${sourceId}`,
);
option.value = sourceId;
visualSource.append(option);
}
const rawSource = shot.visual_context_source;
if (rawSource === undefined || rawSource === null
|| ["", "previous", "immediate"].includes(
String(rawSource).trim().toLowerCase())) {
visualSource.value = "";
} else {
try {
const resolved = sceneVisualContextSource(
state.plan, index + 1,
);
visualSource.value = resolved === index ? ""
: safeShotId(
state.plan.shots[resolved - 1]?.id,
`clip_${String(resolved).padStart(4, "0")}`,
);
} catch (_error) {
const invalid = element(
"option", "",
`Invalid · ${String(rawSource)}`,
);
invalid.value = String(rawSource);
visualSource.append(invalid);
visualSource.value = String(rawSource);
}
}
}
visualSource.title = index === 0
? "Scene 1 visual context comes from Existing Video Context."
: "Choose which earlier saved scene supplies the video/RGB context. Generated-audio continuity always comes from the immediately previous timeline scene. A non-linear source is a hard cut in final assembly.";
visualSource.addEventListener("change", () => {
if (!visualSource.value) {
delete shot.visual_context_source;
} else {
shot.visual_context_source = visualSource.value;
shot.video_blend_frames = 0;
}
delete shot.visual_context_start_frame;
refreshBlendControl();
syncPlan();
render();
});
const visualLeadSource = element("select", "h3c-visual-lead-source");
const noLead = element("option", "", "Off · one context block");
noLead.value = "";
visualLeadSource.append(noLead);
const recentSourceIndex = index === 0 ? null
: sceneVisualContextSource(state.plan, index + 1);
if (recentSourceIndex !== null) {
for (let sourceOffset = 0;
sourceOffset < index; sourceOffset += 1) {
const sourceId = safeShotId(
state.plan.shots[sourceOffset]?.id,
`clip_${String(sourceOffset + 1).padStart(4, "0")}`,
);
const sameSource = sourceOffset + 1 === recentSourceIndex;
const sourceLabel = `Scene ${sourceOffset + 1} · ${sourceId}`
+ (sameSource ? " · same scene, separate window" : "");
const option = element(
"option", "", sourceLabel,
);
option.value = sourceId;
visualLeadSource.append(option);
}
}
visualLeadSource.disabled = index === 0;
try {
const resolvedLead = sceneVisualContextLeadSource(
state.plan, index + 1,
);
visualLeadSource.value = resolvedLead === null ? ""
: safeShotId(
state.plan.shots[resolvedLead - 1]?.id,
`clip_${String(resolvedLead).padStart(4, "0")}`,
);
} catch (_error) {
visualLeadSource.value = "";
}
visualLeadSource.title = "Optional first block in one composed visual context. It may use a different scene or a second independently positioned window from the same scene. Visual context source supplies the block nearest generation; audio remains one continuous tail from the immediate timeline scene.";
const visualLeadFrames = element("select", "h3c-visual-lead-frames");
const resolvedVisualContext = sceneContextLength(
shot, planContextLength,
);
const compositionChoices = visualContextCompositions();
const defaultComposition = compositionChoices.find(
(choice) => choice.total === resolvedVisualContext,
) ?? compositionChoices[0];
visualLeadSource.disabled = visualLeadSource.disabled
|| !compositionChoices.length;
for (const total of H3_CONTEXT_LENGTHS) {
const groupChoices = compositionChoices.filter(
(choice) => choice.total === total,
);
if (!groupChoices.length) continue;
const group = element("optgroup", "");
group.label = `${total} total frames`;
for (const choice of groupChoices) {
const option = element("option", "", choice.label);
option.value = choice.value;
group.append(option);
}
visualLeadFrames.append(group);
}
visualLeadFrames.disabled = !visualLeadSource.value
|| !compositionChoices.length;
if (visualLeadSource.value) {
try {
const lead = sceneVisualContextLeadFrames(
shot, resolvedVisualContext,
);
visualLeadFrames.value = `${resolvedVisualContext}:${lead}`;
} catch (_error) {
visualLeadFrames.value = defaultComposition?.value ?? "";
}
} else {
visualLeadFrames.value = defaultComposition?.value ?? "";
}
visualLeadFrames.title = "Select the total H3 context and its ordered two-block split. Both blocks may use the same scene with independent floating windows. For example, 39 total includes 5+34, 17+22, and their reverse orientations.";
function applyVisualComposition() {
const [totalRaw, leadRaw] = visualLeadFrames.value.split(":");
const total = Number(totalRaw);
const lead = Number(leadRaw);
if (!Number.isInteger(total) || !Number.isInteger(lead)) return;
shot.context_length = total;
shot.visual_context_lead_frames = lead;
sceneVisualContextLeadFrames(shot, total);
shot.video_blend_frames = 0;
}
visualLeadSource.addEventListener("change", () => {
if (!visualLeadSource.value) {
delete shot.visual_context_lead_source;
delete shot.visual_context_lead_frames;
delete shot.visual_context_lead_start_frame;
} else {
shot.visual_context_lead_source = visualLeadSource.value;
applyVisualComposition();
}
delete shot.visual_context_start_frame;
delete shot.visual_context_lead_start_frame;
refreshBlendControl();
syncPlan();
render();
});
visualLeadFrames.addEventListener("change", () => {
if (visualLeadSource.value) {
applyVisualComposition();
}
delete shot.visual_context_start_frame;
delete shot.visual_context_lead_start_frame;
refreshBlendControl();
syncPlan();
render();
});
const audioContext = numberInput(shot.audio_context_length ?? "", {
min: "0", max: "240", step: "1",
});
const planAudioContextLength = Number(
resolvedPlanSettings.audioContextLength,
);
audioContext.placeholder = planAudioContextLength
? String(planAudioContextLength)
: `Follow video · ${planContextLength}`;
audioContext.title = "Generated-audio context entering this scene. Blank inherits the Plan audio default (whose 0 follows video context). An explicit 0 carries no prior generated sound. A positive value can continue audio when video context is 0. AV mask modes ignore this override and keep audio synchronized to the video prefix; source_track uses its exact timeline slice instead.";
audioContext.addEventListener("input", () => {
if (audioContext.value === "") delete shot.audio_context_length;
else shot.audio_context_length = Number(audioContext.value);
refreshIncomingTransition();
syncPlan();
});
const blendFrames = numberInput(shot.video_blend_frames ?? "", {
min: "0", max: String(planContextLength), step: "1",
});
const planBlendFrames = Number(resolvedPlanSettings.videoBlendFrames);
function refreshBlendControl() {
const resolvedContext = sceneContextLength(shot, planContextLength);
blendFrames.max = String(resolvedContext);
blendFrames.placeholder = String(Math.min(
planBlendFrames, resolvedContext,
));
}
refreshBlendControl();
blendFrames.title = index === 0
? "Visible assembly blend entering scene 1 when Existing Video Context supplies a predecessor. Blank inherits the Plan default, capped to this scene's video context. This is assembly-only and does not alter sampling."
: "Visible assembly blend at the boundary from the previous scene into this scene. Blank inherits the Plan default, capped to this scene's video context. Zero keeps a hard cut. This is assembly-only and does not alter sampling.";
blendFrames.addEventListener("input", () => {
if (blendFrames.value === "") delete shot.video_blend_frames;
else shot.video_blend_frames = Number(blendFrames.value);
sceneVideoBlendFrames(
shot, planBlendFrames,
sceneContextLength(shot, planContextLength),
);
syncPlan();
});
const continuation = element("select", "h3c-continuation");
const planContinuationMode = resolvedPlanSettings.continuationMode;
for (const [value, label] of [
["", `Plan default · ${planContinuationMode}`],
["guide", "Guide · new shot"],
["tone_carry_guide", "Tone Carry Guide · corrected RGB context"],
["latent_guide", "Latent Guide · direct generated latent"],
["tapered_guide", "Detail Guide · color injection"],
["tapered_av", "Detail AV · experimental latent taper"],
["drift_control_av", "Drift-Control AV · schedule-matched mask"],
["color_stable_drift_av", "Color-Stable Drift AV · tapered scene-one latent delta"],
["masked_av", "Masked AV · same shot"],
["feathered_av", "Feathered AV · experimental dual-stream feather"],
["audio_feathered_av", "Audio Feather AV · hard picture, soft sound"],
]) {
const option = element("option", "", label);
option.value = value;
continuation.append(option);
}
continuation.value = Object.hasOwn(shot, "continuation_mode")
? sceneContinuationMode(shot, planContinuationMode) : "";
continuation.title = index === 0
? "Continuation into this scene. Scene 1 uses it only when Existing Video Context supplies a predecessor. Guide re-encodes RGB; Latent Guide directly reuses a generated predecessor latent and falls back to RGB for imported context; Detail Guide adds a tapered chroma treatment; Detail AV applies a disposable video-only latent taper; Drift-Control AV applies a scheduler-matched video mask with a clean seam and needs the Chain Context MODEL path; Color-Stable Drift AV additionally carries a weak scene-one color correction as a tapered VAE delta on the copied video latent only; Masked AV protects an exact prefix; experimental Feathered AV softens both streams; Audio-Feathered AV keeps the picture exact and softens only the final audio ticks."
: "Continuation from the preceding scene. Guide re-encodes RGB into persistent conditioning; Latent Guide supplies the saved sampled-latent tail as persistent conditioning; Detail Guide applies luma-preserving tapered chroma injection; Detail AV applies a disposable video-only latent taper; Drift-Control AV applies a scheduler-matched video mask with a clean seam and needs the Chain Context MODEL path; Color-Stable Drift AV additionally carries a weak scene-one color correction as a tapered VAE delta on the copied video latent only; Masked AV protects an exact prefix; experimental Feathered AV softens both streams; Audio-Feathered AV keeps the picture exact and softens only the final audio ticks.";
continuation.addEventListener("change", () => {
if (continuation.value) {
shot.continuation_mode = continuation.value;
} else {
delete shot.continuation_mode;
}
// Resolve once here so malformed externally supplied values cannot
// be introduced through the compact editor control.
sceneContinuationMode(shot, planContinuationMode);
refreshIncomingTransition();
syncPlan();
});
const spatialProxy = element("select", "h3c-spatial-proxy");
for (const [value, label] of [
["", "Off · native context"],
["rgb_5_6", "Low-grid 5/6 proxy · Guide"],
["latent_5_6", "Latent 5/6 proxy · AV"],
]) {
const option = element("option", "", label);
option.value = value;
spatialProxy.append(option);
}
spatialProxy.value = shot.context_spatial_proxy ?? "";
spatialProxy.title = "Scheduled only on the boundary entering scenes 2+. Low-grid 5/6 reduces and VAE-decodes the complete saved predecessor video latent at the proxy canvas, takes its delivered tail, then Motion Context restores those Guide frames to the target; 1376×768 uses 1152×640 (48×86 → 40×72 latent). This exact low-grid decode costs extra preparation time and peak memory. Latent 5/6 applies a cheaper latent down/up filter only to the copied AV video prefix. Audio, generated output, checkpoints, and assembly remain native size.";
spatialProxy.addEventListener("change", () => {
if (spatialProxy.value) {
shot.context_spatial_proxy = spatialProxy.value;
} else {
delete shot.context_spatial_proxy;
}
syncPlan();
});
const boundary = element("div", "h3c-boundary-fields");
boundary.append(
field("Incoming transition", incomingTransition),
field("Final assembly crossfade frames", blendFrames),
);
const planAudioPolicy = resolvedPlanSettings.audioPolicy;
const effectiveAudioPolicy = sceneAudioPolicy(shot, planAudioPolicy);
const lipSync = element("select");
for (const [value, label] of [
["inherit", `Inherit · ${planAudioPolicy.sourceAudioTarget === "locked" ? "On" : "Off"}`],
["on", "On · vocals drive this scene"],
["off", "Off · no source-audio guidance"],
["custom", "Custom · advanced audio controls"],
]) {
const option = element("option", "", label);
option.value = value; option.disabled = value === "custom";
lipSync.append(option);
}
lipSync.value = sceneLipSyncMode(shot);
lipSync.title = "On locks grouped vocals (or a legacy single track). Off "
+ "disables source locking, reference, and audio carry without changing "
+ "the final soundtrack. Inherit resets these three audio overrides.";
lipSync.addEventListener("change", () => {
applySceneLipSync(shot, lipSync.value);
syncPlan();
render();
});
function audioOverrideSelect(key, inherited, choices, title) {
const select = element("select", "h3c-audio-override");
const inheritedOption = element(
"option", "", `Inherit Chain Policy · ${inherited}`,
);
inheritedOption.value = "inherit";
select.append(inheritedOption);
for (const [value, label] of choices) {
const option = element("option", "", label);
option.value = value;
select.append(option);
}
select.value = sceneAudioOverride(shot, key);
select.title = title;
select.addEventListener("change", () => {
applySceneAudioOverride(shot, key, select.value);
lipSync.value = sceneLipSyncMode(shot);
syncPlan();
});
return select;
}
const sourceReference = audioOverrideSelect(
"source_reference",
planAudioPolicy.sourceReference ?? effectiveAudioPolicy.sourceReference,
[["on", "On · use this source-track window as Ref2VA audio"],
["off", "Off · no source audio reference"]],
"Controls only this scene's loose source-audio Ref2VA reference. "
+ "It does not choose final soundtrack. Lock source audio wins "
+ "over this switch.",
);
const generatedContinuity = audioOverrideSelect(
"generated_continuity",
planAudioPolicy.generatedContinuity
?? effectiveAudioPolicy.generatedContinuity,
[["on", "On · continue prior generated audio"],
["off", "Off · generate an independent audio stream"]],
"Controls whether this scene carries the predecessor's generated "
+ "audio latent. Lock source audio wins over this switch.",
);
const inheritedLock = (planAudioPolicy.sourceAudioTarget ?? "off")
=== "locked" ? "on" : "off";
const lockSourceAudio = audioOverrideSelect(
"source_audio_target", inheritedLock,
[["locked", "On · protect this exact source window"],
["off", "Off · leave target audio denoisable"]],
"Locks only this scene's exact source waveform into the H3 target "
+ "audio latent. While on, loose source reference and generated "
+ "continuity are effectively off. Final soundtrack remains "
+ "the global Chain Policy choice.",
);
const audioFields = element("div", "h3c-audio-fields");
audioFields.append(
field("Lip-sync", lipSync),
field("Source reference", sourceReference),
field("Generated continuity", generatedContinuity),
field("Lock source audio", lockSourceAudio),
);
advanced.append(
field("Steps (blank = default)", steps),
field("Advanced visual context", context),
field("Visual context source", visualSource),
field("Context block 1 source", visualLeadSource),
field("Composed total / split", visualLeadFrames),
field("Advanced audio context", audioContext),
field("Advanced implementation", continuation),
field("Boundary spatial proxy", spatialProxy),
);
card.append(
head,
lengthRow,
field("Scene prompt (optional with shared prompt)", prompt),
promptTools(prompt, index + 1),
field("Prompt alternatives", promptSeedControl),
field("Scene seed", seedControl),
field("Scene LoRA route", loraRoute),
boundary,
audioFields,
advanced,
);
return card;
}
function renderModernSettings() {
if (!modern) return null;
const managed = inputConnected(node, "project_assets");
const panel = element(
"section",
`h3c-section h3c-settings${state.settingsOpen ? " h3c-open" : ""}`,
);
const heading = element("div", "h3c-settings-head");
const profileConnected = inputConnected(node, "chain_policy");
const policyStatus = element(
"span",
`h3c-policy-status${profileConnected ? "" : " h3c-missing"}`,
profileConnected
? "Generation Profile connected"
: "Generation Profile required",
);
heading.append(
element("strong", "", "Plan settings"),
element(
"span", "h3c-help",
"Continuity and audio live in Generation Profile.",
),
policyStatus,
);
function group(title, ...fields) {
const wrap = element("div", "h3c-settings-group");
wrap.append(element("div", "h3c-settings-group-title", title));
const grid = element("div", "h3c-settings-fields");
grid.append(...fields);
wrap.append(grid);
return wrap;
}
function textSetting(name, label, options = {}) {
const control = element("input");
control.type = "text";
if (options.numeric) control.inputMode = "numeric";
control.value = String(widgetValue(node, name, options.fallback ?? ""));
control.disabled = Boolean(options.disabled);
control.title = options.title ?? "";
control.addEventListener("change", () => {
let value = control.value;
if (options.numeric) {
value = value.trim();
if (!/^\d+$/.test(value)) {
control.value = String(widgetValue(
node, name, options.fallback ?? "0"));
return;
}
}
setWidgetValue(node, name, value);
updateTiming();
});
const wrapped = field(label, control);
if (options.wide) wrapped.classList.add("h3c-wide");
return wrapped;
}
function numberSetting(name, label, options) {
const control = numberInput(widgetValue(node, name, options.fallback), {
min: options.min,
max: options.max,
step: options.step,
});
control.title = options.title ?? "";
control.addEventListener("change", () => {
if (!control.validity.valid || control.value === "") {
control.value = String(widgetValue(
node, name, options.fallback));
return;
}
setWidgetValue(node, name, Number(control.value));
updateTiming();
});
return field(label, control);
}
function choiceSetting(name, label, choices, title) {
const control = selectInput(widgetValue(node, name, choices[0][0]), choices);
control.title = title;
control.addEventListener("change", () => {
setWidgetValue(node, name, control.value);
updateTiming();
});
return field(label, control);
}
const run = textSetting("run_name", "Run name", {
fallback: "h3_chain", disabled: managed,
title: managed
? "Managed by the connected Project Asset Carousel."
: "Folder and checkpoint identity for this production.",
});
const fingerprint = textSetting(
"generation_fingerprint", "Generation fingerprint", {
fallback: "", disabled: managed, wide: true,
title: managed
? "Project Assets contributes the active reference lineage."
: "Change this when model, VAE, LoRA, CFG, sampler, scheduler, or global references change.",
},
);
const project = group("Project", run, fingerprint);
if (managed) {
project.append(element(
"div", "h3c-managed-note",
"Run identity and reference lineage are managed by Project Assets.",
));
}
const canvas = group(
"Canvas & context fitting",
numberSetting("width", "Width", {
fallback:960, min:32, max:4096, step:32,
title:"Generation width; must be a multiple of 32.",
}),
numberSetting("height", "Height", {
fallback:544, min:32, max:4096, step:32,
title:"Generation height; must be a multiple of 32.",
}),
choiceSetting("encode_mode", "Context encoding", [
["video", "Video · preserve motion"],
["frames", "Frames · still anchors"],
], "How carried picture context is encoded."),
choiceSetting("crop", "Context fit", [
["disabled", "Resize to canvas"],
["center", "Preserve ratio + center crop"],
], "How saved picture context is fitted to the Plan canvas."),
);
const defaults = group(
"Generation defaults",
numberSetting("default_duration_seconds", "Default seconds", {
fallback:15, min:0.1, max:15.0833333333, step:0.01,
title:"Used only when a scene has no explicit duration or frame length.",
}),
numberSetting("default_steps", "Default steps", {
fallback:20, min:1, max:10000, step:1,
title:"Used only when a scene has no sampler-step override.",
}),
textSetting("base_seed", "Base seed", {
fallback:"0", numeric:true, wide:true,
title:"Stable uint64 base used to derive one seed per scene.",
}),
);
const delivery = group(
"Delivery",
numberSetting("segment_crf", "Scene MP4 quality (CRF)", {
fallback:18, min:0, max:51, step:1,
title:"Lower is higher quality; 18 is visually high quality.",
}),
numberSetting("video_blend_frames", "Default crossfade frames", {
fallback:0, min:0, max:243, step:1,
title:"Default final-assembly picture blend entering a scene; 0 is a hard cut.",
}),
);
const grid = element("div", "h3c-settings-grid");
grid.append(project, canvas, defaults, delivery);
panel.append(heading, grid);
return panel;
}
function render() {
if (!state.plan) return;
disconnectResizeObservers();
state.seedRefreshers = [];
const scrollTop = root.scrollTop;
root.replaceChildren();
root.classList.toggle("h3c-show-advanced", state.advanced);
const externalPlanConnected = inputConnected(node, "plan_json_input");
const header = element("div", "h3c-header");
const openOutput = button(
"Output",
"Open this Plan's output/h3_chains/<run_name> folder on the ComfyUI host. " +
"If the host has no desktop session, its path is copied instead.",
async () => {
const runName = String(widgetValue(node, "run_name", "")).trim();
openOutput.disabled = true;
setOutputButtonLabel(openOutput, "Opening…");
try {
const response = await api.fetchApi(
"/minimax_h3_context_loop/open-run-folder",
{
method: "POST",
headers: {"Content-Type": "application/json"},
body: JSON.stringify({run_name: runName}),
},
);
const payload = await response.json();
if (!response.ok) throw new Error(payload.error || `HTTP ${response.status}`);
openOutput.title = payload.path;
if (payload.opened) {
setOutputButtonLabel(openOutput, "Opened ✓");
} else {
try {
await navigator.clipboard.writeText(payload.path);
setOutputButtonLabel(openOutput, "Path copied");
} catch (_error) {
setOutputButtonLabel(openOutput, "See tooltip");
}
if (payload.error) openOutput.title += `\n${payload.error}`;
}
} catch (error) {
setOutputButtonLabel(openOutput, "Open failed");
openOutput.title = String(error?.message || error);
} finally {
setTimeout(() => {
setOutputButtonLabel(openOutput, "Output", true);
openOutput.disabled = false;
}, 2200);
}
},
);
openOutput.classList.add("h3c-open-output");
openOutput.setAttribute("aria-label", "Open project output folder");
setOutputButtonLabel(openOutput, "Output", true);
const headerActions = element("div", "h3c-header-actions");
if (modern) {
headerActions.append(button(
state.settingsOpen ? "Hide settings" : "Settings",
"Show or hide the organized Plan settings",
() => {
state.settingsOpen = !state.settingsOpen;
savePanelState();
render();
},
));
}
headerActions.append(openOutput, element("div", "h3c-summary"));
header.append(element(
"div", "h3c-title",
modern ? "MiniMax H3 Modern Plan" : "MiniMax H3 Scene Plan",
), headerActions);
const settingsPanel = renderModernSettings();
const externalNotice = element("div", "h3c-external-plan");
externalNotice.append(
element("strong", "", "External plan input connected. "),
document.createTextNode(
"A non-empty upstream string controls execution. The editor below " +
"shows and edits the local fallback used only when that string is empty " +
"or disconnected.",
),
);
const prefix = element("textarea", "h3c-prefix");
prefix.value = sharedPrompt(state.plan).text;
prefix.placeholder = "Identity, wardrobe, style and continuity rules shared by every scene…";
prefix.title = "Text automatically prepended to every scene prompt. Put identity, wardrobe, reference definitions, audio rules, style, and global continuity here instead of repeating them.";
prefix.spellcheck = true;
prefix.addEventListener("input", () => {
setSharedPrompt(state.plan, prefix.value);
syncPlan();
});
bindTextareaHeight(prefix, "shared", 88);
const prefixSection = element("section", "h3c-section");
prefixSection.append(
field("Shared prompt — automatically prepended to every scene", prefix),
promptTools(prefix, null),
);
const toolbar = element("div", "h3c-toolbar");
const add = button("+ Add scene", "Append a new scene", () => {
if (state.plan.shots.length >= MAX_SHOTS) return;
state.plan.shots.push(makeShot(state.plan.shots));
syncPlan();
render();
});
add.disabled = state.plan.shots.length >= MAX_SHOTS;
const advanced = button(state.advanced ? "Hide advanced" : "Show advanced", "Show or hide per-scene sampler-step and continuation overrides", () => {
state.advanced = !state.advanced;
savePanelState();
render();
});
const json = button(state.jsonOpen ? "Hide raw JSON" : "Raw JSON", "Expand the raw plan JSON for direct editing, import, or export", () => {
state.jsonOpen = !state.jsonOpen;
savePanelState();
render();
});
toolbar.append(add, advanced, element("span", "h3c-spacer"), json);
const errors = element("div", "h3c-errors");
const cards = element("div", "h3c-cards");
state.plan.shots.forEach((shot, index) => cards.append(renderCard(shot, index)));
const jsonPanel = element("section", `h3c-section h3c-json-panel${state.jsonOpen ? " h3c-open" : ""}`);
const jsonArea = element("textarea", "h3c-json");
jsonArea.value = planToJson(state.plan);
jsonArea.spellcheck = false;
jsonArea.title = "Canonical plan JSON. Apply JSON replaces the visual editor contents after validation; saving the workflow also serializes this value.";
bindTextareaHeight(jsonArea, "json", 260);
const jsonStatus = element("span", "h3c-json-status", "Raw JSON escape hatch");
const apply = button("Apply JSON", "Validate and load this JSON into the scene editor", () => {
try {
state.plan = parsePlanJson(jsonArea.value);
jsonStatus.textContent = "JSON applied";
syncPlan();
render();
} catch (error) {
jsonStatus.textContent = error.message;
}
});
const copyJson = button("Copy", "Copy plan JSON", async () => {
try {
await navigator.clipboard.writeText(jsonArea.value);
jsonStatus.textContent = "Copied";
} catch (_error) {
jsonArea.select();
document.execCommand("copy");
jsonStatus.textContent = "Copied";
}
});
const saveJson = button("Save .json", "Download this plan as JSON", () => {
const runName = String(widgetValue(node, "run_name", "h3_chain"));
downloadJson(jsonArea.value, `${runName || "h3_chain"}_plan.json`);
});
const loadInput = element("input");
loadInput.type = "file";
loadInput.accept = ".json,application/json";
loadInput.hidden = true;
loadInput.addEventListener("change", async () => {
const file = loadInput.files?.[0];
if (!file) return;
jsonArea.value = await file.text();
apply.click();
loadInput.value = "";
});
const loadJson = button("Load .json", "Load a plan JSON file", () => loadInput.click());
const jsonActions = element("div", "h3c-json-actions");
jsonActions.append(apply, copyJson, saveJson, loadJson, loadInput, jsonStatus);
jsonPanel.append(jsonArea, jsonActions);
const footer = element("div", "h3c-footer");
footer.append(
element(
"span",
"",
externalPlanConnected
? "Edits are serialized into fallback plan_json; non-empty external JSON takes precedence."
: "Edits are serialized into plan_json; connect plan_json_input for an external override.",
),
Object.assign(element("a", "", "UI inspiration: nkxx188"), {
href: "https://github.com/nkxx188/ComfyUI-MiniMaxH3-Easy",
target: "_blank",
rel: "noreferrer",
}),
);
root.append(
header,
...(settingsPanel ? [settingsPanel] : []),
...(externalPlanConnected ? [externalNotice] : []),
prefixSection,
toolbar,
errors,
cards,
jsonPanel,
footer,
);
updateTiming();
requestAnimationFrame(() => { root.scrollTop = scrollTop; });
graphDirty();
}
function loadFromWidget(force = false) {
const value = String(planWidget.value ?? "");
if (!force && value === state.lastWidgetValue) return;
try {
state.plan = parsePlanJson(value);
state.lastWidgetValue = value;
render();
} catch (error) {
root.replaceChildren();
const failure = element("div", "h3c-errors h3c-open", error.message);
const raw = element("textarea", "h3c-json");
raw.value = value;
const retry = button("Apply repaired JSON", "Parse this JSON and open the scene editor", () => {
planWidget.value = raw.value;
state.lastWidgetValue = "";
loadFromWidget(true);
});
root.append(failure, raw, retry);
}
}
const originalCallback = planWidget.callback;
planWidget.callback = function (...args) {
const result = originalCallback?.apply(this, args);
if (!state.syncing) setTimeout(() => loadFromWidget(), 0);
return result;
};
for (const name of [
"context_length", "audio_context_length", "encode_mode", "anchor_mode", "continuation_mode",
"default_duration_seconds", "default_steps", "base_seed",
"video_blend_frames",
]) {
const widget = node.widgets?.find((item) => item.name === name);
if (!widget || widget._h3TimingWrapped) continue;
const callback = widget.callback;
widget.callback = function (...args) {
const result = callback?.apply(this, args);
setTimeout(() => updateTiming(), 0);
if (name === "base_seed") {
setTimeout(() => {
for (const refresh of state.seedRefreshers) void refresh();
}, 0);
}
if (name === "continuation_mode") {
setTimeout(() => render(), 0);
}
return result;
};
widget._h3TimingWrapped = true;
}
node._h3ChainEditorRefresh = () => {
collapseWidget(planWidget);
collapseModernBackingWidgets(node);
syncProjectAssetManagedWidgets();
const layout = planLayout(node);
state.advanced = Boolean(layout.advanced);
state.jsonOpen = Boolean(layout.jsonOpen);
state.settingsOpen = modern && layout.settingsOpen !== false;
loadFromWidget(true);
scheduleResponsiveSize();
};
node._h3ChainEditorConnectionRefresh = () => {
syncProjectAssetManagedWidgets();
scheduleResponsiveSize();
render();
};
node._h3ChainEditorFit = applyResponsiveSize;
syncProjectAssetManagedWidgets();
loadFromWidget(true);
scheduleResponsiveSize();
const onLoRARoutesChanged = () => render();
document.addEventListener("h3-lora-routes-changed", onLoRARoutesChanged);
const removed = node.onRemoved;
node.onRemoved = function () {
disconnectResizeObservers();
document.removeEventListener(
"h3-lora-routes-changed", onLoRARoutesChanged);
return removed?.apply(this, arguments);
};
}
app.registerExtension({
name: EXTENSION,
async beforeRegisterNodeDef(nodeType, nodeData) {
if (!NODE_NAMES.has(nodeData.name)) return;
const onNodeCreated = nodeType.prototype.onNodeCreated;
nodeType.prototype.onNodeCreated = function () {
const result = onNodeCreated?.apply(this, arguments);
setTimeout(() => mountEditor(this), 0);
return result;
};
const onConfigure = nodeType.prototype.onConfigure;
nodeType.prototype.onConfigure = function () {
const result = onConfigure?.apply(this, arguments);
setTimeout(() => this._h3ChainEditorRefresh?.(), 0);
return result;
};
const onGraphConfigured = nodeType.prototype.onGraphConfigured;
nodeType.prototype.onGraphConfigured = function () {
const result = onGraphConfigured?.apply(this, arguments);
setTimeout(() => this._h3ChainEditorRefresh?.(), 0);
return result;
};
const onAdded = nodeType.prototype.onAdded;
nodeType.prototype.onAdded = function () {
const result = onAdded?.apply(this, arguments);
// ComfyUI registers DOM widgets again when an existing node is
// removed and re-added. Retire the hidden plan_json surface again.
setTimeout(() => this._h3ChainEditorRefresh?.(), 0);
return result;
};
const onConnectionsChange = nodeType.prototype.onConnectionsChange;
nodeType.prototype.onConnectionsChange = function () {
const result = onConnectionsChange?.apply(this, arguments);
setTimeout(() => this._h3ChainEditorConnectionRefresh?.(), 0);
return result;
};
if (nodeData.name === NODE_NAME) {
const getExtraMenuOptions = nodeType.prototype.getExtraMenuOptions;
nodeType.prototype.getExtraMenuOptions = function (_, options) {
const result = getExtraMenuOptions?.apply(this, arguments);
options.push({
content: "Upgrade to Modern Plan…",
callback: () => replaceWithModernPlan(this),
});
return result;
};
}
},
});
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