feat: sticky mask + keep preview after routing + width-scaled preview

After a route choice the node now keeps the image and shows a 'Run from here'
re-queue button instead of blanking. The last painted mask is remembered and
auto-re-stashed on each new pause (with a Clear control) so it is not lost
between runs. The preview image area now scales with the node width.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
2026-06-21 18:17:37 +02:00
parent 45e16e1134
commit f9f924942e
+133 -37
View File
@@ -11,8 +11,9 @@ const NODE = "ImageGate";
const MAX_ROUTES = 10;
const R = "/datasete_gate";
const PREVIEW_IMG_H = 240; // fixed image area (object-fit:contain)
const BTN_ROW_H = 64; // buttons area (route buttons wrap + mask/stop)
const MIN_IMG_H = 140; // preview image area clamps (scales with node width)
const MAX_IMG_H = 600;
const BTN_ROW_H = 78; // buttons area (route buttons wrap + actions)
const MARGIN = 10; // ComfyUI DOM-widget inset, matches the pool node
// ---- routes widget + label store -------------------------------------------
@@ -43,7 +44,7 @@ function labelFor(node, route) { // route is 1-based
function setRouteLabel(node, route, text) {
labelStore(node)[route - 1] = text;
applyOutputLabels(node);
if (node._gateActive) renderButtons(node); // live-update visible buttons
if (node._gateState && node._gateState !== "idle") render(node); // live-update
node.setDirtyCanvas?.(true, true);
}
@@ -83,65 +84,138 @@ async function postMask(node, blob) {
await api.fetchApi(`${R}/mask`, { method: "POST", body: fd });
}
// ---- preview DOM widget -----------------------------------------------------
// ---- preview DOM widget + state machine -------------------------------------
// States: "idle" (collapsed, before the first run), "paused" (waiting for a
// route choice — route buttons shown), "resolved" (a route was picked — image +
// mask kept, a "Run from here" re-queue button shown). The node never blanks
// once a run has happened, so the previewed image and the sticky mask stay for
// context and the painted mask is reused on the next run until cleared.
function computeImgH(node) {
// image area scales with node WIDTH and the image's aspect ratio, so a wider
// node shows a bigger preview (getMinHeight is polled each layout frame).
const w = Math.max(120, (node.size?.[0] || 220) - 2 * MARGIN);
const h = Math.round(w * (node._imgAspect || 1));
return Math.max(MIN_IMG_H, Math.min(h, MAX_IMG_H));
}
function previewHeight(node) {
return node._gateActive ? 2 * MARGIN + PREVIEW_IMG_H + BTN_ROW_H : 0;
if (!node._gateState || node._gateState === "idle") return 0;
return 2 * MARGIN + computeImgH(node) + BTN_ROW_H;
}
function resizePreview(node) {
// Fully remove the preview element from layout when idle — collapsing the
// widget height to 0 isn't enough: the fixed-height <img> would still paint as
// a black box hanging below the node frame.
if (node._gate) node._gate.wrap.style.display = node._gateActive ? "flex" : "none";
// widget height to 0 isn't enough: the <img> would still paint below the node.
const shown = node._gateState && node._gateState !== "idle";
if (node._gate) node._gate.wrap.style.display = shown ? "flex" : "none";
const w = node.size?.[0] || 220;
node.setSize([w, node.computeSize()[1]]);
node.setDirtyCanvas(true, true);
}
function renderButtons(node) {
const { btns } = node._gate;
btns.innerHTML = "";
const routes = node._gateRoutes || getRouteCount(node);
for (let i = 1; i <= routes; i++) {
const b = document.createElement("button");
b.className = "dgate-route";
b.textContent = labelFor(node, i);
b.onclick = async () => { await postChoice(node, i); hidePreview(node); };
btns.appendChild(b);
}
function hasMask(node) { return !!node._stickyMask; }
function maskControls(node) {
// Edit / Clear buttons + a small "mask retained" badge, shared by both states.
const els = [];
const edit = document.createElement("button");
edit.className = "dgate-edit";
edit.textContent = "🖌 Edit mask";
edit.onclick = () => openMaskEditor(node);
btns.appendChild(edit);
els.push(edit);
if (hasMask(node)) {
const clr = document.createElement("button");
clr.className = "dgate-clear";
clr.textContent = "✕ Clear mask";
clr.onclick = () => clearMask(node);
els.push(clr);
}
const badge = document.createElement("span");
badge.className = "dgate-status";
badge.textContent = hasMask(node) ? "🎭 mask retained" : "no mask";
badge.style.opacity = hasMask(node) ? "0.9" : "0.45";
els.push(badge);
return els;
}
function render(node) {
const { btns } = node._gate;
btns.innerHTML = "";
const routes = node._gateRoutes || getRouteCount(node);
if (node._gateState === "paused") {
for (let i = 1; i <= routes; i++) {
const b = document.createElement("button");
b.className = "dgate-route";
b.textContent = labelFor(node, i);
b.onclick = async () => {
await postChoice(node, i);
showResolved(node, labelFor(node, i));
};
btns.appendChild(b);
}
maskControls(node).forEach((el) => btns.appendChild(el));
const stop = document.createElement("button");
stop.className = "dgate-stop";
stop.textContent = "■ Stop";
stop.onclick = async () => { await postChoice(node, "__cancel__"); hidePreview(node); };
stop.onclick = async () => {
await postChoice(node, "__cancel__");
showResolved(node, "stopped");
};
btns.appendChild(stop);
} else if (node._gateState === "resolved") {
const status = document.createElement("span");
status.className = "dgate-status";
status.textContent = `✓ routed to ${node._gateChoice ?? "?"}`;
btns.appendChild(status);
const run = document.createElement("button");
run.className = "dgate-run";
run.textContent = "▶ Run from here";
run.onclick = () => queueFromHere(node);
btns.appendChild(run);
maskControls(node).forEach((el) => btns.appendChild(el));
}
}
function showPreview(node, b64, routes) {
node._gateActive = true;
function showPaused(node, b64, routes) {
node._gateState = "paused";
node._gateRoutes = Math.max(1, Math.min(MAX_ROUTES, parseInt(routes, 10) || getRouteCount(node)));
node._previewB64 = b64;
node._gate.img.src = `data:image/png;base64,${b64}`;
renderButtons(node);
// sticky mask: re-stash the last painted mask for THIS run before the user
// picks a route. run() does arm()→clear, then send_preview→this event, then
// blocks in wait(), so this POST always lands before the choice is made.
if (node._stickyMask) {
postMask(node, b64ToBlob(node._stickyMask, "image/png")).catch(() => {});
}
render(node);
resizePreview(node);
}
function hidePreview(node) {
node._gateActive = false;
node._previewB64 = null;
if (node._gate) {
node._gate.img.removeAttribute("src");
node._gate.btns.innerHTML = "";
}
function showResolved(node, choiceLabel) {
node._gateState = "resolved";
node._gateChoice = choiceLabel;
render(node);
resizePreview(node);
}
async function queueFromHere(node) {
try {
await app.queuePrompt(0, 1);
} catch (e) {
try { await app.queuePrompt(0); } catch (e2) { console.error("[dgate] queue failed", e2); }
}
}
async function clearMask(node) {
node._stickyMask = null;
// zero the current run's stash: an empty mask part -> server stores b"" ->
// mask_from_stash() treats it as falsy -> zeros.
try { await postMask(node, new Blob([], { type: "image/png" })); } catch (e) { /* ignore */ }
render(node);
}
// ---- mask editor (reuses ComfyUI MaskEditor, like the pool node) ------------
// The preview arrives as base64 (no server file), so upload it to input/ first,
// point the MaskEditor at it, then poll node.images for the saved clipspace ref.
@@ -162,6 +236,15 @@ function blobToImage(blob) {
});
}
function blobToB64(blob) {
return new Promise((resolve, reject) => {
const fr = new FileReader();
fr.onload = () => resolve(String(fr.result).split(",")[1] || "");
fr.onerror = reject;
fr.readAsDataURL(blob);
});
}
function comfyAppClass() {
try { return app.constructor; } catch (e) { return null; }
}
@@ -227,10 +310,13 @@ async function captureMask(node, ref) {
ctx.putImageData(d, 0, 0);
const maskBlob = await new Promise((res) => c.toBlob(res, "image/png"));
await postMask(node, maskBlob);
// remember it so it auto-applies on the next run until the user clears it
try { node._stickyMask = await blobToB64(maskBlob); } catch (e) { /* ignore */ }
} catch (e) {
console.error("[dgate] mask capture failed", e);
} finally {
cleanupMaskState(node);
if (node._gateState && node._gateState !== "idle") render(node); // show badge
}
}
@@ -285,15 +371,18 @@ function injectStyles() {
const css = `
.dgate-wrap { display:flex; flex-direction:column; gap:6px; box-sizing:border-box;
height:100%; min-height:0; }
.dgate-img { width:100%; height:${PREVIEW_IMG_H}px; object-fit:contain; display:block;
.dgate-img { width:100%; flex:1 1 auto; min-height:0; object-fit:contain; display:block;
background:rgba(0,0,0,0.25); border-radius:4px; }
.dgate-btns { display:flex; flex-wrap:wrap; gap:6px; align-items:center; }
.dgate-btns { display:flex; flex-wrap:wrap; gap:6px; align-items:center; flex:0 0 auto; }
.dgate-btns button { font-size:12px; padding:3px 10px; cursor:pointer; border-radius:3px;
border:1px solid #555; color:#fff; }
.dgate-route { background:rgba(40,90,140,0.9); }
.dgate-route:hover { background:rgba(60,120,180,0.95); }
.dgate-edit { background:rgba(40,40,40,0.9); margin-left:auto; }
.dgate-stop { background:rgba(160,40,40,0.9); }
.dgate-edit { background:rgba(40,40,40,0.9); }
.dgate-clear { background:rgba(90,60,30,0.9); }
.dgate-run { background:rgba(40,130,70,0.95); }
.dgate-stop { background:rgba(160,40,40,0.9); margin-left:auto; }
.dgate-status { font-size:11px; opacity:0.8; padding:0 4px; align-self:center; }
`;
const style = document.createElement("style");
style.id = "dgate-styles";
@@ -318,6 +407,13 @@ function setupGateNode(node) {
wrap.className = "dgate-wrap";
const img = document.createElement("img");
img.className = "dgate-img";
// capture the image aspect so the preview area scales with the node width
img.onload = () => {
const w = img.naturalWidth || 1;
const h = img.naturalHeight || 1;
node._imgAspect = h / w;
resizePreview(node);
};
const btns = document.createElement("div");
btns.className = "dgate-btns";
wrap.appendChild(img);
@@ -341,7 +437,7 @@ function setupGateNode(node) {
};
}
node._gateActive = false;
node._gateState = "idle";
resizePreview(node);
}
@@ -354,7 +450,7 @@ app.registerExtension({
const d = e.detail || {};
const node = app.graph?.getNodeById?.(parseInt(d.id, 10));
if (!node || node.type !== NODE) return;
showPreview(node, d.image, d.routes);
showPaused(node, d.image, d.routes);
});
},