mock: バリアントグループを選んでキーを足すと、表示中のバリアントに新しい行を作る(T-30 単位6)

クラスターを選んだときと同じ挙動にそろえる。これまではグループの右隣(親の中)に足していた。 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01XsamNKrWY3obJwR746oQRq
mock: クラスターを選んでキーを足すと、そのクラスターに新しい行を作る(T-30 単位6)
2026-10-23 08:23:44 +09:00 · 2026-10-23 08:18:22 +09:00 · 2026-10-23 08:09:24 +09:00 · 2026-10-23 07:54:53 +09:00 · 2026-10-22 14:24:49 +09:00 · 2026-10-22 09:42:32 +09:00
15 changed files with 922 additions and 166 deletions
@@ -15,6 +15,63 @@ async function makeCluster(page: import("@playwright/test").Page) {
  return page.locator('[data-node-type="cluster"]').first();
 }

+test("階層パネルを閉じると、キャンバスが空いた幅を埋める", async ({ page }) => {
+  const canvas = page.locator(".canvas-pane");
+  const properties = page.locator(".properties");
+  const before = (await canvas.boundingBox())!;
+  await page.getByRole("button", { name: "階層" }).click();
+  await expect(page.locator(".tree")).toHaveCount(0);
+  await expect.poll(async () => (await canvas.boundingBox())!.width).toBeGreaterThan(before.width + 200);
+  const after = (await canvas.boundingBox())!;
+  const side = (await properties.boundingBox())!;
+  const workspace = (await page.locator(".workspace").boundingBox())!;
+  expect(Math.abs(after.x - workspace.x)).toBeLessThan(1);
+  expect(Math.abs(side.x + side.width - (workspace.x + workspace.width))).toBeLessThan(1);
+});
+
+test("選択レイヤーはキーより前面にあり、回転とフォーカスに追従する", async ({ page }) => {
+  test.setTimeout(60_000);
+  const keys = page.locator('[data-node-type="key"]');
+  const leftId = await keys.first().getAttribute("data-node-id");
+  await keys.first().click();
+  const order = await page.locator("svg.canvas").evaluate((svg, id) => {
+    const face = svg.querySelector(`[data-node-id="${id}"]`)!;
+    const layer = svg.querySelector(`[data-sel-id="${id}"]`)!;
+    return [
+      face.compareDocumentPosition(layer) & Node.DOCUMENT_POSITION_FOLLOWING,
+      layer.parentElement?.classList.contains("selection-layer"),
+    ];
+  }, leftId);
+  expect(order).toEqual([4, true]);
+
+  const cluster = await makeCluster(page);
+  const clusterId = await cluster.getAttribute("data-node-id");
+  await page.locator(`[data-tree-id="${clusterId}"]`).first().click();
+  await page.getByLabel("Rotation").fill("35");
+  await page.getByLabel("Rotation").dispatchEvent("change");
+  const key = cluster.locator('[data-node-type="key"]').first();
+  const id = await key.getAttribute("data-node-id");
+  await key.click();
+  const aligned = async () =>
+    page.evaluate((keyId) => {
+      const face = document.querySelector(`[data-node-id="${keyId}"] .key-face`)!.getBoundingClientRect();
+      const outline = document.querySelector(`[data-sel-id="${keyId}"]`)!.getBoundingClientRect();
+      return [
+        Math.abs(face.x - outline.x),
+        Math.abs(face.y - outline.y),
+        Math.abs(face.width - outline.width),
+        Math.abs(face.height - outline.height),
+      ];
+    }, id);
+  expect((await aligned()).every((delta) => delta < 1)).toBe(true);
+  await page.locator(`[data-tree-id="${clusterId}"]`).first().click();
+  await page.locator(".canvas-pane").focus();
+  await page.keyboard.press("Enter");
+  const focused = page.locator(`[data-node-id="${id}"]`).last();
+  await focused.click();
+  expect((await aligned()).every((delta) => delta < 1)).toBe(true);
+});
+
 test("ドラッグの刻みをUndo/Redoでき、コンソールにエラーがない", async ({ page }) => {
  const errors: string[] = [];
  page.on("console", (message) => {
@@ -38,6 +95,43 @@ test("ドラッグの刻みをUndo/Redoでき、コンソールにエラーが
  expect(errors).toEqual([]);
 });

+test("ドラッグ中に右端で自動スクロールし、Undo 1回で戻る", async ({ page }) => {
+  const key = page.locator('[data-node-type="key"]').first();
+  const before = await key.getAttribute("transform");
+  const keyBox = (await key.boundingBox())!;
+  const canvasBox = (await page.locator("svg.canvas").boundingBox())!;
+  const y = keyBox.y + keyBox.height / 2;
+  await page.mouse.move(keyBox.x + keyBox.width / 2, y);
+  await page.mouse.down();
+  await page.mouse.move(canvasBox.x + canvasBox.width - 8, y, { steps: 8 });
+  const atEdge = await key.getAttribute("transform");
+  await page.waitForTimeout(700);
+  expect(await key.getAttribute("transform")).not.toBe(atEdge);
+  await page.mouse.up();
+  const released = await key.getAttribute("transform");
+  await page.waitForTimeout(250);
+  expect(await key.getAttribute("transform")).toBe(released);
+  await page.getByRole("button", { name: "Undo" }).click();
+  await expect(key).toHaveAttribute("transform", before!);
+});
+
+test("選択中のクラスターにだけ原点の丸を出す", async ({ page }) => {
+  const keys = page.locator('[data-node-type="key"]');
+  const corner = (await keys.nth(0).locator(".key-face").boundingBox())!;
+  const cluster = await makeCluster(page);
+  const clusterId = await cluster.getAttribute("data-node-id");
+  await keys.nth(5).click();
+  await expect(page.locator(".origin")).toHaveCount(0);
+  await page.locator(`[data-tree-id="${clusterId}"]`).first().click();
+  const origin = page.locator(`[data-origin-id="${clusterId}"]`);
+  await expect(origin).toHaveCount(1);
+  const box = (await origin.boundingBox())!;
+  expect(Math.abs(box.x + box.width / 2 - corner.x)).toBeLessThan(2);
+  expect(Math.abs(box.y + box.height / 2 - corner.y)).toBeLessThan(2);
+  await keys.nth(5).click();
+  await expect(page.locator(".origin")).toHaveCount(0);
+});
+
 test("クラスター化で画面位置を保つ", async ({ page }) => {
  const keys = page.locator('[data-node-type="key"]');
  const centers = async () =>
@@ -151,7 +245,7 @@ test("入れ子の回転クラスターをフォーカスできる", async ({ pa
  await page.mouse.move(focusedBox!.x + focusedBox!.width / 2, focusedBox!.y + focusedBox!.height / 2);
  await page.mouse.down();
  await page.waitForTimeout(700);
-  await expect(page.locator(`[data-node-id="${innerId}"] .group-sel.candidate`)).toBeVisible({
+  await expect(page.locator(`[data-sel-id="${innerId}"].candidate`)).toBeVisible({
    timeout: 1800,
  });
  await page.mouse.up();
@@ -164,17 +258,18 @@ test("入れ子の回転クラスターをフォーカスできる", async ({ pa
 });

 test("選択枠は画面上で見え、バリアントバッジで表示を切り替えられる", async ({ page }) => {
+  test.setTimeout(60_000);
  const keys = page.locator('[data-node-type="key"]');
  await keys.first().click();
-  const outline = page.locator('[data-node-type="key"] .sel').first();
+  const outline = page.locator(".selection-layer .sel").first();
  await expect(outline).toBeVisible();
-  expect(await outline.evaluate((e) => getComputedStyle(e).strokeWidth)).toBe("2px");
+  expect(await outline.evaluate((e) => getComputedStyle(e).strokeWidth)).toBe("3.5px");
  await keys.nth(1).click({ modifiers: ["Shift"] });
  await page.getByRole("button", { name: "選択からバリアントグループ" }).click();
  const group = page.locator('[data-node-type="variantGroup"]').first();
  await page.getByLabel("Rotation").fill("35");
  await page.getByLabel("Rotation").dispatchEvent("change");
-  const badge = group.locator(".badge");
+  const badge = page.locator(`[data-badge-id="${await group.first().getAttribute("data-node-id")}"]`);
  await expect(badge).toBeVisible();
  await badge.locator("rect").click();
  await page
@@ -199,6 +294,37 @@ test("選択枠は画面上で見え、バリアントバッジで表示を切
  await expect(keys).toHaveCount(16);
 });

+test("クラスター内のキーから作ったバリアントグループはクラスターの中にでき、バッジは名前を書かない", async ({
+  page,
+}) => {
+  const cluster = await makeCluster(page);
+  const key = cluster.locator('[data-node-type="key"]').first();
+  await key.click();
+  await page.getByRole("button", { name: "選択からバリアントグループ" }).click();
+  const group = cluster.locator('[data-node-type="variantGroup"]');
+  await expect(group).toHaveCount(1);
+  const badge = page.locator(`[data-badge-id="${await group.first().getAttribute("data-node-id")}"]`);
+  await expect(badge.locator("text")).toHaveText("⇄");
+  await expect(badge.locator("title")).toHaveText("Variant Group: Option A(既定)");
+  // バッジはキーより後に描き、隣のキーの下に隠れない
+  const onTop = await badge.evaluate((element) => {
+    const keys = [...document.querySelectorAll('[data-node-type="key"]')];
+    const box = element.getBoundingClientRect();
+    const hit = document.elementFromPoint(box.x + box.width / 2, box.y + box.height / 2);
+    return [
+      keys.every((key) => key.compareDocumentPosition(element) & Node.DOCUMENT_POSITION_FOLLOWING),
+      element.contains(hit),
+    ];
+  });
+  expect(onTop).toEqual([true, true]);
+  await badge.locator("rect").click();
+  const popover = page.locator(".popover");
+  await expect(popover.getByRole("button", { name: /Option A/ }).locator(".default-tag")).toHaveText("既定");
+  await expect(popover.getByRole("button", { name: /Option B/ }).locator(".default-tag")).toHaveCount(0);
+  await popover.getByRole("button", { name: /Option B/ }).click();
+  await expect(badge.locator("title")).toHaveText("Variant Group: Option B");
+});
+
 test("削除確認は参照を列挙し、実行後はIDXからも消える", async ({ page }) => {
  const key = page.locator('[data-node-type="key"]').first();
  const id = await key.getAttribute("data-node-id");
@@ -412,7 +538,7 @@ test("削除のキーボード確認とバリアントポップオーバーを
  await page.keyboard.press("Escape");

  await keysSelectVariantGroup(page);
-  const badge = page.locator('[data-node-type="variantGroup"] .badge').first();
+  const badge = page.locator(".badge-layer:not(.dim) .badge").first();
  await badge.locator("rect").click();
  const badgeBox = await badge.boundingBox();
  const popoverBox = await page.locator(".popover").boundingBox();
@@ -456,12 +582,16 @@ test("長押し候補は離すまで選択を変えず、離すとクラスタ
  const clusterId = await cluster.getAttribute("data-node-id");
  const keys = page.locator('[data-node-type="key"]');
  await keys.nth(4).click();
-  await expect(keys.nth(4).locator(".sel")).toBeVisible();
+  await expect(
+    page.locator(`[data-sel-id="${await keys.nth(4).getAttribute("data-node-id")}"]`),
+  ).toBeVisible();
  const b = await cluster.locator('[data-node-type="key"]').first().boundingBox();
  await page.mouse.move(b!.x + b!.width / 2, b!.y + b!.height / 2);
  await page.mouse.down();
  await expect(page.locator(".long-label")).toContainText("2/", { timeout: 1800 });
-  await expect(keys.nth(4).locator(".sel")).toBeVisible();
+  await expect(
+    page.locator(`[data-sel-id="${await keys.nth(4).getAttribute("data-node-id")}"]`),
+  ).toBeVisible();
  await page.screenshot({ path: path.join(test.info().outputDir, "long-press-candidate.png") });
  await page.mouse.up();
  await expect(page.locator(`[data-tree-id="${clusterId}"]`).first()).toHaveClass(/chosen/);
@@ -473,3 +603,58 @@ test("「その他」の部品はpartGroupを設定せず、選択後は追加
  await expect(select).toHaveValue("");
  await expect(page.locator('[data-node-type="component"] .part-label').last()).toHaveText("part");
 });
+
+test("クラスター内でキーを足すと、足したキーを選ぶ", async ({ page }) => {
+  const cluster = await makeCluster(page);
+  const clusterKeys = cluster.locator('[data-node-type="key"]');
+  const before = await clusterKeys.evaluateAll((es) => es.map((e) => e.getAttribute("data-node-id")));
+  await page.getByText("キー・部品 2件", { exact: true }).click();
+  await page.locator(`[data-tree-id="${before[0]}"]`).first().click();
+  await page.getByRole("button", { name: "キーを足す" }).click();
+  await expect(clusterKeys).toHaveCount(3);
+  const after = await clusterKeys.evaluateAll((es) => es.map((e) => e.getAttribute("data-node-id")));
+  const added = after.find((id) => !before.includes(id));
+  await expect(page.locator(`[data-sel-id="${added}"]`)).toHaveCount(1);
+  await expect(page.locator("[data-sel-id]")).toHaveCount(1);
+});
+
+test("クラスターを選んでキーを足すと、そのクラスターに新しい行を作る", async ({ page }) => {
+  const cluster = await makeCluster(page);
+  const clusterId = await cluster.getAttribute("data-node-id");
+  await page.locator(`[data-tree-id="${clusterId}"]`).first().click();
+  const clusterKeys = cluster.locator('[data-node-type="key"]');
+  const before = await clusterKeys.evaluateAll((es) => es.map((e) => e.getAttribute("data-node-id")));
+  const boxes = await Promise.all(before.map((id) => page.locator(`[data-node-id="${id}"]`).boundingBox()));
+  await page.getByRole("button", { name: "キーを足す" }).click();
+  await expect(clusterKeys).toHaveCount(3);
+  const after = await clusterKeys.evaluateAll((es) => es.map((e) => e.getAttribute("data-node-id")));
+  const added = after.find((id) => !before.includes(id));
+  await expect(page.locator(`[data-sel-id="${added}"]`)).toHaveCount(1);
+  const box = (await page.locator(`[data-node-id="${added}"]`).boundingBox())!;
+  // The cluster holds two keys of the first row, 1U apart; the new row starts 1U below its left end.
+  const [left, right] = [...boxes].sort((a, b) => a!.x - b!.x);
+  const unit = right!.x - left!.x;
+  expect(Math.abs(box.x - left!.x)).toBeLessThan(1);
+  expect(Math.abs(box.y - (left!.y + unit))).toBeLessThan(1);
+});
+
+test("バリアントグループを選んでキーを足すと、表示中のバリアントに新しい行を作る", async ({ page }) => {
+  await keysSelectVariantGroup(page);
+  const group = page.locator('[data-node-type="variantGroup"]').first();
+  const groupId = await group.getAttribute("data-node-id");
+  await page.locator(`[data-tree-id="${groupId}"]`).first().click();
+  const groupKeys = group.locator('[data-node-type="key"]');
+  const before = await groupKeys.evaluateAll((es) => es.map((e) => e.getAttribute("data-node-id")));
+  const boxes = await Promise.all(before.map((id) => page.locator(`[data-node-id="${id}"]`).boundingBox()));
+  await page.getByRole("button", { name: "キーを足す" }).click();
+  await expect(groupKeys).toHaveCount(before.length + 1);
+  const after = await groupKeys.evaluateAll((es) => es.map((e) => e.getAttribute("data-node-id")));
+  const added = after.find((id) => !before.includes(id));
+  await expect(page.locator(`[data-sel-id="${added}"]`)).toHaveCount(1);
+  const box = (await page.locator(`[data-node-id="${added}"]`).boundingBox())!;
+  // The variant holds two keys of the first row, 1U apart; the new row starts 1U below its left end.
+  const [left, right] = [...boxes].sort((a, b) => a!.x - b!.x);
+  const unit = right!.x - left!.x;
+  expect(Math.abs(box.x - left!.x)).toBeLessThan(1);
+  expect(Math.abs(box.y - (left!.y + unit))).toBeLessThan(1);
+});
@@ -114,9 +114,12 @@ export function insertNodes(f: PhyFile, parentId: string | null, nodes: Node[],

 function parentNodes(f: PhyFile, parentId: string | null): Node[] {
  if (!parentId) return f.root;
-  const n = find(f, parentId);
-  if (n.type === "cluster") return n.children;
-  if (n.type === "variantGroup") throw new Error("Choose a variant as the parent");
+  // variantのIDは containers に子の入れ物として載るので、find ではノードとして引けない
+  const n = containers(f)
+    .get(parentId)
+    ?.nodes.find((x) => x.id === parentId);
+  if (n?.type === "cluster") return n.children;
+  if (n?.type === "variantGroup") throw new Error("Choose a variant as the parent");
  return findVariant(f, parentId).children;
 }
 /** ローカル座標の差分でノードを移動する。 */
@@ -397,6 +400,17 @@ export function createVariantGroup(
  at: Transform,
  variants: [{ name: string; children?: Node[] }, { name: string; children?: Node[] }],
  gen?: () => string,
+): PhyFile {
+  return createVariantGroupInParent(f, null, name, at, variants, gen);
+}
+/** 指定コンテナへVariantGroupを作成する。T-11。 */
+export function createVariantGroupInParent(
+  f: PhyFile,
+  parentId: string | null,
+  name: string,
+  at: Transform,
+  variants: [{ name: string; children?: Node[] }, { name: string; children?: Node[] }],
+  gen?: () => string,
 ): PhyFile {
  const o = mutable(f),
    children = variants.map((x) => ({
@@ -405,7 +419,7 @@ export function createVariantGroup(
      name: x.name,
      children: structuredClone(x.children ?? []),
    }));
-  o.root.push({
+  parentNodes(o, parentId).push({
    type: "variantGroup",
    id: nodeId("variantGroup", gen),
    name,
@@ -0,0 +1,105 @@
+/** Axis-aligned key rectangle in one coordinate frame, in U. */
+export type KeyRect = { id: string; x: number; y: number; w: number; h: number };
+
+const EPS = 1e-3;
+/** Keys farther apart than this across adjacent lines are not linked. */
+const MAX_LINK = 1;
+
+type Point = { id: string; along: number; across: number };
+
+/**
+ * Detects visual rows, top to bottom, each listing key ids left to right.
+ * The aligned axis is grouped by coordinate and the staggered axis is traced through
+ * adjacent lines (idx-editor-feedback.md). Keys are placed by their top-left corner,
+ * so tall keys belong to their top row and wide keys to their left column.
+ */
+export function detectRows(keys: KeyRect[]): string[][] {
+  return detectLines(keys, "row");
+}
+/** Detects visual columns, left to right, each listing key ids top to bottom. */
+export function detectColumns(keys: KeyRect[]): string[][] {
+  return detectLines(keys, "column");
+}
+
+function detectLines(keys: KeyRect[], kind: "row" | "column"): string[][] {
+  const points: Point[] = keys.map((k) =>
+    kind === "row" ? { id: k.id, along: k.x, across: k.y } : { id: k.id, along: k.y, across: k.x },
+  );
+  const rowsAligned = groupBy(keys, (k) => k.y).length <= groupBy(keys, (k) => k.x).length;
+  return (kind === "row") === rowsAligned ? groupLines(points) : traceLines(points);
+}
+
+/** Clusters values within EPS, ordered by value. */
+function groupBy<T>(items: T[], value: (item: T) => number): T[][] {
+  const sorted = [...items].sort((a, b) => value(a) - value(b));
+  const groups: T[][] = [];
+  for (const item of sorted) {
+    const last = groups.at(-1);
+    if (last && value(item) - value(last.at(-1)!) <= EPS) last.push(item);
+    else groups.push([item]);
+  }
+  return groups;
+}
+
+function groupLines(points: Point[]): string[][] {
+  return groupBy(points, (p) => p.across).map((line) => sortAlong(line).map((p) => p.id));
+}
+
+/** Links each pair of adjacent cross lines one-to-one by nearest `across`, then joins the links. */
+function traceLines(points: Point[]): string[][] {
+  const cross = groupBy(points, (p) => p.along);
+  const parent = new Map(points.map((p) => [p.id, p.id]));
+  const find = (id: string): string => {
+    const up = parent.get(id)!;
+    if (up === id) return id;
+    const root = find(up);
+    parent.set(id, root);
+    return root;
+  };
+  for (let i = 0; i + 1 < cross.length; i++) {
+    const pairs = cross[i]!.flatMap((a) =>
+      cross[i + 1]!.map((b) => ({ a, b, d: Math.abs(a.across - b.across) })),
+    )
+      .filter((pair) => pair.d < MAX_LINK)
+      .sort((p, q) => p.d - q.d);
+    const used = new Set<string>();
+    for (const { a, b } of pairs) {
+      if (used.has(a.id) || used.has(b.id)) continue;
+      used.add(a.id);
+      used.add(b.id);
+      parent.set(find(b.id), find(a.id));
+    }
+  }
+  const lines = new Map<string, Point[]>();
+  for (const p of points) lines.set(find(p.id), [...(lines.get(find(p.id)) ?? []), p]);
+  return [...lines.values()]
+    .map(sortAlong)
+    .sort((a, b) => mean(a) - mean(b) || a[0]!.along - b[0]!.along)
+    .map((line) => line.map((p) => p.id));
+}
+
+function sortAlong(line: Point[]): Point[] {
+  return [...line].sort((a, b) => a.along - b.along);
+}
+
+function mean(line: Point[]): number {
+  return line.reduce((sum, p) => sum + p.across, 0) / line.length;
+}
+
+/** Position right after the last key of the row containing `keyId`. */
+export function rowEndPosition(keys: KeyRect[], keyId: string): { x: number; y: number } | undefined {
+  const row = detectRows(keys).find((line) => line.includes(keyId));
+  if (!row) return undefined;
+  const byId = new Map(keys.map((k) => [k.id, k]));
+  const last = row.map((id) => byId.get(id)!).reduce((a, b) => (b.x + b.w > a.x + a.w ? b : a));
+  return { x: last.x + last.w, y: last.y };
+}
+
+/** Leftmost position of a new row below every key. */
+export function newRowPosition(keys: KeyRect[]): { x: number; y: number } | undefined {
+  if (!keys.length) return undefined;
+  return {
+    x: Math.min(...keys.map((k) => k.x)),
+    y: Math.max(...keys.map((k) => k.y + k.h)),
+  };
+}
@@ -1,42 +1,17 @@
 <script setup lang="ts">
 import type { Node } from "../../domain/phy";
-import { localBounds } from "./logic";
 defineOptions({ name: "NodeSvg" });
-const props = defineProps<{
+defineProps<{
  nodes: Node[];
  selected: string[];
  variants: Record<string, string>;
  cut: string[];
  dim: boolean;
-  zoom: number;
-  angle: number;
-  longCandidate?: string | null;
 }>();
 const emit = defineEmits<{
  down: [e: PointerEvent, n: Node, el: SVGGElement];
-  badge: [g: Node, e: PointerEvent];
  focus: [id: string];
 }>();
-function bounds(n: Node) {
-  return n.type === "cluster"
-    ? localBounds(n.children, props.variants)
-    : n.type === "variantGroup"
-      ? localBounds(
-          n.children.find((v) => v.id === (props.variants[n.id] ?? n.default))?.children ?? [],
-          props.variants,
-        )
-      : { x: 0, y: 0, width: 0, height: 0 };
-}
-function badgeBox(n: Node) {
-  const b = bounds(n);
-  const size = 26 / props.zoom;
-  return {
-    x: b.x + b.width + 4 / props.zoom,
-    y: b.y - size - 4 / props.zoom,
-    size,
-    angle: -(props.angle + n.transform.rotation),
-  };
-}
 </script>
 <template>
  <g
@@ -57,18 +32,9 @@ function badgeBox(n: Node) {
        :height="n.size.h"
        rx=".06"
        class="key-face"
-        :class="{ chosen: selected.includes(n.id), ghost: n.ghost, decal: n.decal }" /><text
-        class="key-label"
-        x=".08"
-        y=".24"
-        >{{ n.labels?.find(Boolean) }}</text
-      ><rect
-        v-if="selected.includes(n.id)"
-        :width="n.size.w"
-        :height="n.size.h"
-        class="sel"
-        :class="{ candidate: longCandidate === n.id }"
-    /></g>
+        :class="{ chosen: selected.includes(n.id), ghost: n.ghost, decal: n.decal }"
+      /><text class="key-label" x=".08" y=".24">{{ n.labels?.find(Boolean) }}</text></g
+    >
    <g
      v-else-if="n.type === 'component'"
      class="node"
@@ -115,20 +81,8 @@ function badgeBox(n: Node) {
        :variants="variants"
        :cut="cut"
        :dim="dim"
-        :zoom="zoom"
-        :angle="angle + n.transform.rotation"
-        :long-candidate="longCandidate"
        @down="(e, c, el) => emit('down', e, c, el)"
-        @badge="(g, e) => emit('badge', g, e)"
        @focus="(id) => emit('focus', id)"
-      /><rect
-        v-if="selected.includes(n.id) || longCandidate === n.id"
-        :x="bounds(n).x"
-        :y="bounds(n).y"
-        :width="bounds(n).width"
-        :height="bounds(n).height"
-        class="group-sel"
-        :class="{ candidate: longCandidate === n.id }"
      /><text x="0" y="-.12" class="group-label">{{ n.name }}</text></g
    >
    <g v-else class="group"
@@ -140,40 +94,9 @@ function badgeBox(n: Node) {
        :variants="variants"
        :cut="cut"
        :dim="dim"
-        :zoom="zoom"
-        :angle="angle + n.transform.rotation"
-        :long-candidate="longCandidate"
        @down="(e, c, el) => emit('down', e, c, el)"
-        @badge="(g, e) => emit('badge', g, e)"
        @focus="(id) => emit('focus', id)"
-      /><rect
-        v-if="selected.includes(n.id) || longCandidate === n.id"
-        :x="bounds(n).x"
-        :y="bounds(n).y"
-        :width="bounds(n).width"
-        :height="bounds(n).height"
-        class="group-sel"
-        :class="{ candidate: longCandidate === n.id }"
-      /><g
-        :transform="`rotate(${badgeBox(n).angle} ${badgeBox(n).x} ${badgeBox(n).y})`"
-        class="badge"
-        @click.stop="emit('badge', n, $event)"
-        ><rect
-          :x="badgeBox(n).x"
-          :y="badgeBox(n).y"
-          :width="badgeBox(n).size"
-          :height="badgeBox(n).size"
-          rx="3"
-          @click.stop="emit('badge', n, $event)"
-        /><text
-          :x="badgeBox(n).x + 3 / zoom"
-          :y="badgeBox(n).y + 16 / zoom"
-          :style="{ fontSize: `${12 / zoom}px` }"
-          >{{ n.children.find((v) => v.id === (variants[n.id] || n.default))?.name
-          }}{{ n.default === (variants[n.id] || n.default) ? " ✓" : "" }}</text
-        ></g
-      ></g
-    >
+    /></g>
  </g>
 </template>
 <style scoped>
@@ -216,21 +139,6 @@ function badgeBox(n: Node) {
  stroke: #315d7a;
  stroke-width: 0.03;
 }
-.sel,
-.group-sel {
-  fill: none;
-  stroke: #1769d2;
-  stroke-width: 2px;
-  vector-effect: non-scaling-stroke;
-  pointer-events: none;
-}
-.group-sel {
-  stroke-dasharray: 5 3;
-}
-.candidate {
-  stroke: #e87912;
-  stroke-width: 2.5px;
-}
 .group {
  cursor: default;
 }
@@ -243,19 +151,4 @@ function badgeBox(n: Node) {
 .group-label {
  fill: #222;
 }
-.badge {
-  cursor: pointer;
-  pointer-events: all;
-}
-.badge rect {
-  fill: #fff3c2;
-  stroke: #8a691b;
-  stroke-width: 1px;
-  vector-effect: non-scaling-stroke;
-}
-.badge text {
-  font-size: 12px;
-  fill: #302709;
-  pointer-events: none;
-}
 </style>
@@ -0,0 +1,66 @@
+<script setup lang="ts">
+import { computed } from "vue";
+import type { Node } from "../../domain/phy";
+import type { Affine } from "../../domain/geometry";
+import { variantBadges } from "./logic";
+const props = withDefaults(
+  defineProps<{
+    nodes: Node[];
+    variants: Record<string, string>;
+    zoom: number;
+    dim?: boolean;
+    parent?: Affine;
+  }>(),
+  { dim: false, parent: () => ({ a: 1, b: 0, c: 0, d: 1, e: 0, f: 0 }) },
+);
+const emit = defineEmits<{ badge: [g: Node, e: MouseEvent] }>();
+// ノードより後に描き、隣のキーの下に隠れないようにする
+const badges = computed(() => variantBadges(props.nodes, props.variants, props.zoom, props.parent));
+/** バッジは名前を書かず、表示中のバリアント名はツールチップで示す。T-30。 */
+function badgeTitle(n: Extract<Node, { type: "variantGroup" }>) {
+  const shown = props.variants[n.id] || n.default;
+  const name = n.children.find((v) => v.id === shown)?.name ?? "";
+  return `${n.name}: ${name}${shown === n.default ? "(既定)" : ""}`;
+}
+</script>
+<template>
+  <g class="badge-layer" :class="{ dim }">
+    <g
+      v-for="badge in badges"
+      :key="badge.group.id"
+      :data-badge-id="badge.group.id"
+      class="badge"
+      @click.stop="!dim && emit('badge', badge.group, $event)"
+      ><rect :x="badge.x" :y="badge.y" :width="badge.size" :height="badge.size" :rx="3 / zoom" /><text
+        :x="badge.x + badge.size / 2"
+        :y="badge.y + badge.size / 2"
+        :style="{ fontSize: `${12 / zoom}px` }"
+        >⇄</text
+      ><title>{{ badgeTitle(badge.group) }}</title></g
+    >
+  </g>
+</template>
+<style scoped>
+.badge {
+  cursor: pointer;
+  pointer-events: all;
+}
+.dim {
+  opacity: 0.25;
+}
+.dim .badge {
+  cursor: default;
+}
+.badge rect {
+  fill: #fff3c2;
+  stroke: #8a691b;
+  stroke-width: 1px;
+  vector-effect: non-scaling-stroke;
+}
+.badge text {
+  fill: #302709;
+  text-anchor: middle;
+  dominant-baseline: central;
+  pointer-events: none;
+}
+</style>
@@ -7,6 +7,8 @@ import { reframe } from "../../domain/phyCommands";
 import { listDeleteReferences } from "../../domain/deleteCascade";
 import PhyTree from "./PhyTree.vue";
 import NodeSvg from "./NodeSvg.vue";
+import PhySelectionLayer from "./PhySelectionLayer.vue";
+import PhyBadgeLayer from "./PhyBadgeLayer.vue";
 import PhyToolbar from "./PhyToolbar.vue";
 import PhyProperties from "./PhyProperties.vue";
 import { normalizeSelection, nextGrid, insertionContainer, structuralNodes, visibleNodeIds } from "./logic";
@@ -117,7 +119,6 @@ const {
  focusGridLines,
  moveTargets,
  parentMatrix: focusParentMatrix,
-  focusAngle,
  affineText,
  focusCrumbs,
  propertyNode: prop,
@@ -301,7 +302,7 @@ function onFocus(_id: string) {
 }
 </script>
 <template>
-  <section class="workspace" :class="{ locked: mismatch }">
+  <section class="workspace" :class="{ locked: mismatch, 'tree-closed': !treeOpen }">
    <aside v-if="treeOpen" class="tree pane">
      <PhyTree :nodes="project.phy.root" :selected="selected" @select="setSel" />
    </aside>
@@ -359,8 +360,6 @@ function onFocus(_id: string) {
            :variants="variants"
            :cut="cut"
            :dim="true"
-            :zoom="zoom"
-            :angle="0"
          />
          <g v-if="focus" :transform="affineText(focusParentMatrix(focus))">
            <g
@@ -374,11 +373,7 @@ function onFocus(_id: string) {
              :variants="variants"
              :cut="cut"
              :dim="false"
-              :long-candidate="longLabel ? (holdCandidates[holdIndex] ?? null) : null"
-              :zoom="zoom"
-              :angle="focusAngle(focus)"
              @down="down"
-              @badge="openBadge"
              @focus="onFocus"
            />
          </g>
@@ -389,13 +384,31 @@ function onFocus(_id: string) {
            :variants="variants"
            :cut="cut"
            :dim="false"
-            :long-candidate="longLabel ? (holdCandidates[holdIndex] ?? null) : null"
-            :zoom="zoom"
-            :angle="0"
            @down="down"
-            @badge="openBadge"
            @focus="onFocus"
          />
+          <PhySelectionLayer
+            :nodes="focus ? [node(focus)!] : project.phy.root"
+            :selected="selected"
+            :variants="variants"
+            :zoom="zoom"
+            :candidate="longLabel ? (holdCandidates[holdIndex] ?? null) : null"
+            :parent="focus ? focusParentMatrix(focus) : undefined"
+          />
+          <PhyBadgeLayer
+            v-if="focus && outsideNodes.length"
+            :nodes="outsideNodes"
+            :variants="variants"
+            :zoom="zoom"
+            :dim="true"
+          />
+          <PhyBadgeLayer
+            :nodes="focus ? [node(focus)!] : project.phy.root"
+            :variants="variants"
+            :zoom="zoom"
+            :parent="focus ? focusParentMatrix(focus) : undefined"
+            @badge="openBadge"
+          />
        </g>
        <rect
          v-if="rangeBox"
@@ -425,7 +438,7 @@ function onFocus(_id: string) {
      >
        <template v-for="g in variantGroups.filter((n) => n.id === popover)" :key="g.id"
          ><button v-for="v in g.children" :key="v.id" @click="chooseVariant(g, v.id)">
-            {{ v.name }} {{ g.default === v.id ? "✓" : "" }}
+            {{ v.name }}<span v-if="g.default === v.id" class="default-tag">既定</span>
          </button></template
        >
      </div>
@@ -469,6 +482,9 @@ function onFocus(_id: string) {
  grid-template-columns: 260px minmax(300px, 1fr) 250px;
  gap: 8px;
 }
+.workspace.tree-closed {
+  grid-template-columns: minmax(300px, 1fr) 250px;
+}
 .pane {
  padding: 10px;
  min-height: 0;
@@ -572,6 +588,14 @@ function onFocus(_id: string) {
 .warning {
  color: #9a4c00;
 }
+.default-tag {
+  margin-left: 6px;
+  padding: 0 4px;
+  border: 1px solid #8a691b;
+  border-radius: 3px;
+  font-size: 11px;
+  color: #6b520f;
+}
 .long-label {
  position: fixed;
  z-index: 3;
@@ -0,0 +1,69 @@
+<script setup lang="ts">
+import { computed } from "vue";
+import type { Node } from "../../domain/phy";
+import type { Affine } from "../../domain/geometry";
+import { selectionFrames } from "./logic";
+const props = withDefaults(
+  defineProps<{
+    nodes: Node[];
+    selected: string[];
+    variants: Record<string, string>;
+    zoom: number;
+    candidate?: string | null;
+    parent?: Affine;
+  }>(),
+  { candidate: null, parent: () => ({ a: 1, b: 0, c: 0, d: 1, e: 0, f: 0 }) },
+);
+const frames = computed(() =>
+  selectionFrames(props.nodes, props.selected, props.variants, props.candidate, props.parent),
+);
+// 原点の丸は選択中のクラスター(VariantGroupを含む)にだけ出す。T-30。
+const origins = computed(() => frames.value.filter((frame) => frame.selected && frame.type !== "key"));
+const affineText = (m: Affine) => `matrix(${m.a} ${m.b} ${m.c} ${m.d} ${m.e} ${m.f})`;
+</script>
+<template>
+  <g class="selection-layer" pointer-events="none">
+    <rect
+      v-for="frame in frames"
+      :key="frame.id"
+      :data-sel-id="frame.id"
+      :class="[frame.type === 'key' ? 'sel' : 'group-sel', { candidate: frame.candidate }]"
+      :transform="affineText(frame.transform)"
+      :x="frame.box.x"
+      :y="frame.box.y"
+      :width="frame.box.width"
+      :height="frame.box.height"
+    />
+    <circle
+      v-for="frame in origins"
+      :key="`origin-${frame.id}`"
+      :data-origin-id="frame.id"
+      class="origin"
+      :cx="frame.transform.e"
+      :cy="frame.transform.f"
+      :r="5 / zoom"
+    />
+  </g>
+</template>
+<style scoped>
+.sel,
+.group-sel {
+  fill: none;
+  stroke: #1769d2;
+  stroke-width: 3.5px;
+  vector-effect: non-scaling-stroke;
+}
+.group-sel {
+  stroke-dasharray: 5 3;
+}
+.candidate {
+  stroke: #e87912;
+  stroke-width: 3.5px;
+}
+.origin {
+  fill: #fff;
+  stroke: #1769d2;
+  stroke-width: 2px;
+  vector-effect: non-scaling-stroke;
+}
+</style>
@@ -229,6 +229,96 @@ export function localBounds(nodes: Node[], variants: Record<string, string> = {}
  visit(nodes, { a: 1, b: 0, c: 0, d: 1, e: 0, f: 0 });
  return obbAabb(points);
 }
+
+export type SelectionFrame = {
+  id: string;
+  type: Node["type"];
+  transform: Affine;
+  box: Box;
+  selected: boolean;
+  candidate: boolean;
+};
+/** 可視ノードの選択枠をワールド行列とローカル矩形で返す。 */
+export function selectionFrames(
+  roots: Node[],
+  selected: string[],
+  variants: Record<string, string>,
+  candidate: string | null,
+  parent: Affine = { a: 1, b: 0, c: 0, d: 1, e: 0, f: 0 },
+): SelectionFrame[] {
+  const frames: SelectionFrame[] = [];
+  const visit = (nodes: Node[], ancestor: Affine) => {
+    for (const node of nodes) {
+      const transform = compose(ancestor, matrix(node.transform));
+      if (node.type === "key" && (selected.includes(node.id) || candidate === node.id)) {
+        frames.push({
+          id: node.id,
+          type: node.type,
+          transform,
+          box: { x: 0, y: 0, width: node.size.w, height: node.size.h },
+          selected: selected.includes(node.id),
+          candidate: candidate === node.id,
+        });
+      } else if (node.type === "cluster") {
+        if (selected.includes(node.id) || candidate === node.id)
+          frames.push({
+            id: node.id,
+            type: node.type,
+            transform,
+            box: localBounds(node.children, variants),
+            selected: selected.includes(node.id),
+            candidate: candidate === node.id,
+          });
+        visit(node.children, transform);
+      } else if (node.type === "variantGroup") {
+        const variant = node.children.find((item) => item.id === (variants[node.id] ?? node.default));
+        if (selected.includes(node.id) || candidate === node.id)
+          frames.push({
+            id: node.id,
+            type: node.type,
+            transform,
+            box: localBounds(variant?.children ?? [], variants),
+            selected: selected.includes(node.id),
+            candidate: candidate === node.id,
+          });
+        if (variant) visit(variant.children, transform);
+      }
+    }
+  };
+  visit(roots, parent);
+  return frames;
+}
+export type VariantBadge = {
+  group: Extract<Node, { type: "variantGroup" }>;
+  x: number;
+  y: number;
+  size: number;
+};
+/** 表示中のVariantGroupのバッジを、OBBの右上に正立で置く。大きさは画面上で固定する。 */
+export function variantBadges(
+  roots: Node[],
+  variants: Record<string, string>,
+  zoom: number,
+  parent: Affine = { a: 1, b: 0, c: 0, d: 1, e: 0, f: 0 },
+): VariantBadge[] {
+  const badges: VariantBadge[] = [];
+  const size = 20 / zoom;
+  const visit = (nodes: Node[], ancestor: Affine) => {
+    for (const node of nodes) {
+      const transform = compose(ancestor, matrix(node.transform));
+      if (node.type === "cluster") visit(node.children, transform);
+      else if (node.type === "variantGroup") {
+        const variant = node.children.find((item) => item.id === (variants[node.id] || node.default));
+        const box = localBounds(variant?.children ?? [], variants);
+        const corner = apply(transform, { x: box.x + box.width + 4 / zoom, y: box.y - size - 4 / zoom });
+        badges.push({ group: node, x: corner.x, y: corner.y, size });
+        if (variant) visit(variant.children, transform);
+      }
+    }
+  };
+  visit(roots, parent);
+  return badges;
+}
 /** ワールド位置を貼り先の親ローカルへ戻し、親軸で1刻みずらす。T-11/T-27。 */
 export function pasteLocalTransform(sourceWorld: Affine, parentWorld: Affine, step: number): Transform {
  const local = compose(inverse(parentWorld), sourceWorld);
@@ -1,9 +1,10 @@
-import { ref, type Ref } from "vue";
+import { nextTick, onUnmounted, ref, type Ref } from "vue";
 import type { ProjectFile } from "../../domain/project";
 import type { KeyNode, Node } from "../../domain/phy";
 import { apply, worldTransform } from "../../domain/geometry";
 import { moveNode } from "../../domain/phyCommands";
 import { normalizeSelection, snap } from "./logic";
+import { autoPanVelocity } from "./viewport";

 type Point = { x: number; y: number };
 type Box = Point & { width: number; height: number };
@@ -44,6 +45,9 @@ export function usePhyCanvasPointer(options: Options) {
  let holdCycle: number | undefined;
  let holdShift = false;
  let holdActivated = false;
+  let lastPointer: Point | null = null;
+  let autoPanFrame: number | undefined;
+  let lastAutoPanAt = 0;
  let panDrag: { start: Point; origin: Point } | null = null;
  let rangeDrag: { start: Point; shift: boolean; moved: boolean } | null = null;
  let dragState: {
@@ -57,6 +61,78 @@ export function usePhyCanvasPointer(options: Options) {
    moved: boolean;
  } | null = null;

+  function stopAutoPan() {
+    if (autoPanFrame !== undefined) window.cancelAnimationFrame(autoPanFrame);
+    autoPanFrame = undefined;
+    lastAutoPanAt = 0;
+  }
+
+  function updateDraggedPosition(clientX: number, clientY: number) {
+    const state = dragState;
+    if (!state?.moved) return;
+    let phy = state.base.phy;
+    for (const id of state.ids) {
+      const parent = state.parents.get(id);
+      const start = state.starts.get(id);
+      if (!parent || !start) continue;
+      const current = options.localPoint(parent, clientX, clientY);
+      phy = moveNode(
+        phy,
+        id,
+        snap(current.x - start.x, options.grid.value),
+        snap(current.y - start.y, options.grid.value),
+      );
+    }
+    options.dispatch("ドラッグ", (project) => ({ ...project, phy }));
+  }
+
+  function autoPanTick(time: number) {
+    autoPanFrame = undefined;
+    const svg = options.svg.value;
+    const pointer = lastPointer;
+    if (!svg || !pointer || !dragState?.moved || longLabel.value) return;
+    const rect = svg.getBoundingClientRect();
+    const velocity = autoPanVelocity(
+      { x: pointer.x, y: pointer.y },
+      { x: rect.left, y: rect.top, width: rect.width, height: rect.height },
+    );
+    if (!velocity.x && !velocity.y) {
+      lastAutoPanAt = 0;
+      return;
+    }
+    const elapsed = lastAutoPanAt ? Math.min((time - lastAutoPanAt) / 1000, 0.05) : 0;
+    lastAutoPanAt = time;
+    const transform = svg.getScreenCTM();
+    if (elapsed && transform) {
+      options.pan.value = {
+        x: options.pan.value.x - (velocity.x * elapsed) / transform.a,
+        y: options.pan.value.y - (velocity.y * elapsed) / transform.d,
+      };
+      void nextTick(() => {
+        if (dragState?.moved && lastPointer) updateDraggedPosition(lastPointer.x, lastPointer.y);
+      });
+    }
+    autoPanFrame = window.requestAnimationFrame(autoPanTick);
+  }
+
+  function scheduleAutoPan() {
+    const svg = options.svg.value;
+    if (!svg || !lastPointer || !dragState?.moved || longLabel.value) {
+      stopAutoPan();
+      return;
+    }
+    const rect = svg.getBoundingClientRect();
+    const velocity = autoPanVelocity(
+      { x: lastPointer.x, y: lastPointer.y },
+      { x: rect.left, y: rect.top, width: rect.width, height: rect.height },
+    );
+    if (!velocity.x && !velocity.y) {
+      stopAutoPan();
+    } else if (autoPanFrame === undefined) {
+      autoPanFrame = window.requestAnimationFrame(autoPanTick);
+    }
+  }
+
  function priorSelection() {
    return preClickSelection;
  }
@@ -184,6 +260,7 @@ export function usePhyCanvasPointer(options: Options) {
      return;
    }
    if (!dragState) return;
+    lastPointer = { x: event.clientX, y: event.clientY };
    const state = dragState;
    if (Math.hypot(event.clientX - state.start.x, event.clientY - state.start.y) < 4) return;
    if (holdTimer && !longLabel.value) {
@@ -223,23 +300,12 @@ export function usePhyCanvasPointer(options: Options) {
      options.beginHistory();
    }
    state.moved = true;
-    let phy = state.base.phy;
-    for (const id of state.ids) {
-      const parent = state.parents.get(id);
-      const start = state.starts.get(id);
-      if (!parent || !start) continue;
-      const current = options.localPoint(parent, event.clientX, event.clientY);
-      phy = moveNode(
-        phy,
-        id,
-        snap(current.x - start.x, options.grid.value),
-        snap(current.y - start.y, options.grid.value),
-      );
-    }
-    options.dispatch("ドラッグ", (project) => ({ ...project, phy }));
+    updateDraggedPosition(event.clientX, event.clientY);
+    scheduleAutoPan();
  }

  function up() {
+    stopAutoPan();
    window.removeEventListener("pointermove", move, true);
    window.removeEventListener("pointerup", up, true);
    if (panDrag) {
@@ -323,12 +389,15 @@ export function usePhyCanvasPointer(options: Options) {
    }
    if (holdActivated || moved) preClickTarget = null;
    dragState = null;
+    lastPointer = null;
  }

  function spaceUp(event: KeyboardEvent) {
    if (event.code === "Space") spaceHeld.value = false;
  }

+  onUnmounted(stopAutoPan);
+
  return {
    canvasDown,
    down,
@@ -7,7 +7,7 @@ import {
  addKeyToParent,
  clusterNodes,
  cloneNodesWithNewIds,
-  createVariantGroup,
+  createVariantGroupInParent,
  insertNodes,
  reparent,
  reparentToVariant,
@@ -16,6 +16,7 @@ import {
 } from "../../domain/phyCommands";
 import { deleteNodeCascade, listDeleteReferences } from "../../domain/deleteCascade";
 import { apply, inverse, matrix, worldTransform, type Affine } from "../../domain/geometry";
+import { newRowPosition, rowEndPosition } from "../../domain/rows";
 import { pasteLocalTransform, localBounds, treeIndex } from "./logic";

 type Options = {
@@ -119,20 +120,39 @@ export function usePhyCommands(options: Options) {
    options.popover.value = null;
  }

+  /** The node id present in `after` but not in `before`; the tree order does not tell where it went. */
+  function addedId(before: ProjectFile["phy"], after: ProjectFile["phy"]): string {
+    const existing = new Set(options.allNodes(before.root).map((node) => node.id));
+    return options.allNodes(after.root).find((node) => !existing.has(node.id))?.id || "";
+  }
+
  function keyAdd() {
    const chosen = options.node(options.selected.value.at(-1) || "");
-    const parent = chosen ? options.selectedContainer(chosen.id) : insertionParent();
+    // A selected cluster, or the shown variant of a selected group, receives a new row inside it,
+    // like an empty selection inside the focus.
+    const parent =
+      chosen?.type === "cluster"
+        ? chosen.id
+        : chosen?.type === "variantGroup"
+          ? options.variants.value[chosen.id] || chosen.default
+          : chosen
+            ? options.selectedContainer(chosen.id)
+            : insertionParent();
+    const keys = nodesInContainer(parent).flatMap((node) =>
+      node.type === "key" ? [{ id: node.id, x: node.transform.x, y: node.transform.y, ...node.size }] : [],
+    );
+    const snap = (value: number) => Math.round(value / options.grid.value) * options.grid.value;
    const center = centerInParent(parent);
-    const x =
-      Math.round(
-        (chosen ? chosen.transform.x + (chosen.type === "key" ? chosen.size.w : 1) : center.x) /
-          options.grid.value,
-      ) * options.grid.value;
-    const y = Math.round((chosen ? chosen.transform.y : center.y) / options.grid.value) * options.grid.value;
+    const { x, y } =
+      chosen?.type === "key"
+        ? rowEndPosition(keys, chosen.id)!
+        : chosen?.type === "component"
+          ? { x: snap(chosen.transform.x + 1), y: snap(chosen.transform.y) }
+          : (newRowPosition(keys) ?? { x: snap(center.x), y: snap(center.y) });
    let id = "";
    options.dispatch("キー追加", (project) => {
      const phy = addKeyToParent(project.phy, parent, { x, y, rotation: 0 }, { w: 1, h: 1 });
-      id = options.allNodes(phy.root).at(-1)?.id || "";
+      id = addedId(project.phy, phy);
      return { ...project, phy, idx: { ...project.idx, order: [...project.idx.order, id] } };
    });
    if (id) options.selected.value = [id];
@@ -166,7 +186,7 @@ export function usePhyCommands(options: Options) {
        { x, y, rotation: 0 },
        group === "その他" ? undefined : group,
      );
-      id = options.allNodes(phy.root).at(-1)?.id || "";
+      id = addedId(project.phy, phy);
      return { ...project, phy };
    });
    if (id) options.selected.value = [id];
@@ -205,12 +225,16 @@ export function usePhyCommands(options: Options) {

  function variantGroup() {
    if (!options.selected.value.length) return;
+    const parent = options.selectedContainer(options.selected.value[0]!);
    let id = "";
    options.dispatch("バリアントグループ作成", (project) => {
-      let phy = createVariantGroup(project.phy, "Variant Group", { x: 0, y: 0, rotation: 0 }, [
-        { name: "Option A" },
-        { name: "Option B" },
-      ]);
+      let phy = createVariantGroupInParent(
+        project.phy,
+        parent,
+        "Variant Group",
+        { x: 0, y: 0, rotation: 0 },
+        [{ name: "Option A" }, { name: "Option B" }],
+      );
      const group = options
        .allNodes(phy.root)
        .find(
@@ -1,6 +1,26 @@
 export type Viewport = { zoom: number; pan: { x: number; y: number } };
 export type ViewBounds = { x: number; y: number; width: number; height: number };

+/** SVG画面端に近いほど強く、端の外では上限に達する自動パン速度(px/秒)。 */
+export function autoPanVelocity(
+  point: { x: number; y: number },
+  bounds: ViewBounds,
+  edge = 32,
+  maxSpeed = 480,
+): { x: number; y: number } {
+  const axis = (position: number, start: number, length: number) => {
+    const fromStart = position - start;
+    const fromEnd = start + length - position;
+    if (fromStart < edge) return -maxSpeed * Math.min(1, (edge - fromStart) / edge);
+    if (fromEnd < edge) return maxSpeed * Math.min(1, (edge - fromEnd) / edge);
+    return 0;
+  };
+  return {
+    x: axis(point.x, bounds.x, bounds.width),
+    y: axis(point.y, bounds.y, bounds.height),
+  };
+}
+
 /** 境界を余白付きで中央へ収める。座標・倍率だけを扱う純粋関数。 */
 export function fitViewport(
  bounds: ViewBounds,
@@ -4,6 +4,7 @@ import {
  addComponentToParent,
  addKeyToParent,
  cloneNodesWithNewIds,
+  createVariantGroupInParent,
  duplicateNode,
  insertNodes,
 } from "../src/domain/phyCommands";
@@ -102,4 +103,22 @@ describe("PHY parent insertion and duplication", () => {
      }
    }
  });
+  it("creates a variant group inside a cluster or a variant", () => {
+    const variants: Parameters<typeof createVariantGroupInParent>[4] = [{ name: "A" }, { name: "B" }];
+    let p = createVariantGroupInParent(file, "cl-parent", "G", { x: 0, y: 0, rotation: 0 }, variants, ids);
+    const parent = p.root[0] as import("../src/domain/phy").ClusterNode;
+    expect(p.root).toHaveLength(1);
+    expect(parent.children.map((n) => n.type)).toEqual(["variantGroup"]);
+    const group = parent.children[0] as import("../src/domain/phy").VariantGroupNode;
+    p = createVariantGroupInParent(
+      p,
+      group.children[1]!.id,
+      "Inner",
+      { x: 0, y: 0, rotation: 0 },
+      variants,
+      ids,
+    );
+    const updated = (p.root[0] as import("../src/domain/phy").ClusterNode).children[0] as typeof group;
+    expect(updated.children[1]!.children.map((n) => n.type)).toEqual(["variantGroup"]);
+  });
 });
@@ -12,11 +12,13 @@ import {
  pasteParent,
  resolveKey,
  snap,
+  selectionFrames,
+  variantBadges,
  tabOrder,
  treeIndex,
  visibleNodeIds,
 } from "../src/ui/phy/logic";
-import { fitViewport, zoomAround } from "../src/ui/phy/viewport";
+import { autoPanVelocity, fitViewport, zoomAround } from "../src/ui/phy/viewport";
 import type { PhyFile, Node as PhyNode } from "../src/domain/phy";
 const phy: PhyFile = {
  version: "0.1.0",
@@ -34,6 +36,68 @@ const phy: PhyFile = {
  ],
 };
 describe("PHY pure interaction rules", () => {
+  it("computes selected frame world transforms through nested rotations", () => {
+    const roots: PhyNode[] = [
+      {
+        type: "cluster",
+        id: "outer",
+        transform: { x: 10, y: 20, rotation: 90 },
+        children: [
+          {
+            type: "cluster",
+            id: "inner",
+            transform: { x: 2, y: 3, rotation: -90 },
+            children: [
+              {
+                type: "key",
+                id: "target",
+                profile: "p",
+                transform: { x: 4, y: 5, rotation: 30 },
+                size: { w: 2, h: 1 },
+              },
+            ],
+          },
+        ],
+      },
+    ];
+    const frame = selectionFrames(roots, ["target"], {}, null)[0]!;
+    expect(frame.id).toBe("target");
+    expect(frame.transform.e).toBeCloseTo(11);
+    expect(frame.transform.f).toBeCloseTo(27);
+    expect(frame.transform.a).toBeCloseTo(Math.cos(Math.PI / 6));
+    expect(frame.transform.b).toBeCloseTo(Math.sin(Math.PI / 6));
+    expect(frame.selected).toBe(true);
+    const candidateOnly = selectionFrames(roots, [], {}, "target")[0]!;
+    expect([candidateOnly.selected, candidateOnly.candidate]).toEqual([false, true]);
+  });
+  it("places variant badges at the rotated group's top-right corner, upright", () => {
+    const key = (id: string): PhyNode => ({
+      type: "key",
+      id,
+      profile: "p",
+      transform: { x: 0, y: 0, rotation: 0 },
+      size: { w: 2, h: 1 },
+    });
+    const roots: PhyNode[] = [
+      {
+        type: "variantGroup",
+        id: "g",
+        name: "G",
+        transform: { x: 1, y: 1, rotation: 90 },
+        default: "a",
+        children: [
+          { type: "variant", id: "a", name: "A", children: [key("ka")] },
+          { type: "variant", id: "b", name: "B", children: [] },
+        ],
+      },
+    ];
+    const [badge] = variantBadges(roots, {}, 10);
+    // ローカル (2 + 0.4, -2 - 0.4) を90度回して (1, 1) だけ動かす
+    expect(badge!.group.id).toBe("g");
+    expect(badge!.x).toBeCloseTo(1 + 2.4);
+    expect(badge!.y).toBeCloseTo(1 + 2.4);
+    expect(badge!.size).toBeCloseTo(2);
+  });
  it("removes ancestors and descendants from mixed selections", () => {
    expect(normalizeSelection(phy, ["c", "k"])).toEqual(["k"]);
    expect(normalizeSelection(phy, ["k", "c"])).toEqual(["c"]);
@@ -157,4 +221,12 @@ describe("PHY pure interaction rules", () => {
    expect((cursor.x - zoomed.pan.x) / zoomed.zoom).toBeCloseTo(world.x);
    expect((cursor.y - zoomed.pan.y) / zoomed.zoom).toBeCloseTo(world.y);
  });
+  it("scales auto-pan speed near edges, outside the canvas, and at corners", () => {
+    const bounds = { x: 10, y: 20, width: 200, height: 100 };
+    expect(autoPanVelocity({ x: 110, y: 70 }, bounds)).toEqual({ x: 0, y: 0 });
+    expect(autoPanVelocity({ x: 194, y: 70 }, bounds)).toEqual({ x: 240, y: 0 });
+    expect(autoPanVelocity({ x: 210, y: 70 }, bounds)).toEqual({ x: 480, y: 0 });
+    expect(autoPanVelocity({ x: 220, y: 70 }, bounds)).toEqual({ x: 480, y: 0 });
+    expect(autoPanVelocity({ x: 210, y: 10 }, bounds)).toEqual({ x: 480, y: -480 });
+  });
 });
@@ -0,0 +1,78 @@
+import { describe, expect, it } from "vitest";
+import { detectColumns, detectRows, newRowPosition, rowEndPosition, type KeyRect } from "../src/domain/rows";
+
+const key = (id: string, x: number, y: number, w = 1, h = 1): KeyRect => ({ id, x, y, w, h });
+
+describe("row detection", () => {
+  it("groups row-staggered keys by y and traces columns", () => {
+    const keys = [
+      key("tab", 0, 0, 1.5),
+      key("q", 1.5, 0),
+      key("w", 2.5, 0),
+      key("caps", 0, 1, 1.75),
+      key("a", 1.75, 1),
+      key("s", 2.75, 1),
+      key("space", 0.5, 2, 3),
+    ];
+    expect(detectRows(keys)).toEqual([["tab", "q", "w"], ["caps", "a", "s"], ["space"]]);
+    expect(detectColumns(keys)[0]).toEqual(["tab", "caps", "space"]);
+  });
+
+  it("traces column-staggered rows through the nearest key of the next column", () => {
+    const offsets = [0.5, 0.25, 0, 0.25];
+    const keys = offsets.flatMap((dy, col) => [0, 1, 2].map((row) => key(`c${col}r${row}`, col, row + dy)));
+    expect(detectRows(keys)).toEqual([0, 1, 2].map((row) => offsets.map((_, col) => `c${col}r${row}`)));
+    expect(detectColumns(keys)[2]).toEqual(["c2r0", "c2r1", "c2r2"]);
+  });
+
+  it("keeps rows apart when an outer column has fewer keys", () => {
+    const keys = [
+      key("p1", 0, 1.5),
+      key("p2", 0, 2.5),
+      ...[0, 1, 2].map((row) => key(`r${row}`, 1, row + 1.25)),
+      ...[0, 1, 2, 3].map((row) => key(`i${row}`, 2, row + 1)),
+    ];
+    expect(detectRows(keys)).toEqual([["p1", "r0", "i0"], ["p2", "r1", "i1"], ["r2", "i2"], ["i3"]]);
+  });
+
+  it("does not link keys a full row apart", () => {
+    const keys = [key("a0", 0, 0), key("a1", 0, 1), key("b1", 1, 1.1), key("b2", 1, 2.1)];
+    expect(detectRows(keys)).toEqual([["a0"], ["a1", "b1"], ["b2"]]);
+  });
+
+  it("puts a tall key in its top row", () => {
+    const keys = [key("7", 0, 0), key("8", 1, 0), key("plus", 2, 0, 1, 2), key("4", 0, 1), key("5", 1, 1)];
+    expect(detectRows(keys)).toEqual([
+      ["7", "8", "plus"],
+      ["4", "5"],
+    ]);
+  });
+
+  it("links the inner columns across the gap between halves", () => {
+    const columns: [string, number, number][] = [
+      ["l", 0, 0.5],
+      ["m", 1, 0.25],
+      ["n", 4, 0.25],
+      ["o", 5, 0.5],
+    ];
+    const keys = columns.flatMap(([name, x, dy]) =>
+      [0, 1, 2].map((row) => key(`${name}${row}`, x, row + dy)),
+    );
+    expect(detectRows(keys)).toEqual([0, 1, 2].map((row) => columns.map(([name]) => `${name}${row}`)));
+  });
+});
+
+describe("key insertion position", () => {
+  const keys = [key("a", 0, 0), key("b", 1, 0, 2), key("c", 0, 1)];
+
+  it("places a new key after the right end of the selected key's row", () => {
+    expect(rowEndPosition(keys, "a")).toEqual({ x: 3, y: 0 });
+    expect(rowEndPosition(keys, "c")).toEqual({ x: 1, y: 1 });
+    expect(rowEndPosition(keys, "missing")).toBeUndefined();
+  });
+
+  it("starts a new row at the left below every key", () => {
+    expect(newRowPosition([...keys, key("tall", 3, 0.5, 1, 2)])).toEqual({ x: 0, y: 2.5 });
+    expect(newRowPosition([])).toBeUndefined();
+  });
+});
@@ -71,6 +71,34 @@ KLE本家の挙動の確認は、既存の検証ハーネスで本家の `serial
 入力は [phy-editor-feedback.md](phy-editor-feedback.md) と [phy-editor-keybindings.md](phy-editor-keybindings.md)。
 理由: 所感はすべて画面の操作と表示に関するもので、データモデル側に作り直す理由がない。

+### T-30 作り直し1回目の所感への対応
+
+T-29 のコードを作り直さず、[phy-editor-feedback.md](phy-editor-feedback.md)「作り直し1回目(T-29)を触った所感」を下の単位で順に直す。
+1単位1コミットとし、各単位で既存の Vitest・Playwright を通してから次へ進む。
+理由: 所感はどれも局所的な修正か機能の追加で、T-29 の構成(composable・純粋モジュールの分離)のまま入る。
+
+| 順 | 単位 | 内容 | 主な箇所 |
+| --- | --- | --- | --- |
+| 1 | 選択の描画層 | 選択枠を太くし、`NodeSvg` の再帰から外して最前面の層に描く。以後のオーバーレイ(5・8)もこの層に載せる | `NodeSvg.vue`、`PhyEditor.vue` |
+| 2 | パネルの幅 | 階層パネルを閉じたら、キャンバスが空いた幅を埋める | `PhyEditor.vue` の `grid-template-columns` |
+| 3 | バリアント | ポップオーバーの印を「既定」と分かる見た目にする。バッジには名前を書かず、表示中のバリアント名はツールチップで示す。クラスター内のキーから作ったバリアントグループは、そのクラスターの中に作る | `NodeSvg.vue`、`usePhyCommands.ts` |
+| 4 | ドラッグ中の自動スクロール | キーを画面の端へ寄せると、キャンバスがスクロールする | `usePhyCanvasPointer.ts`、`usePhyCanvasView.ts` |
+| 5 | クラスターの原点 | 選択中のクラスターにだけ、原点に丸を出す | 1の層 |
+| 6 | キー追加の位置 | 選択中のキー(複数なら最後に選んだキー)の行の右端に追加する。何も選んでいなければ、同じコンテナの全キーの下に新しい行を作り、その左端に置く。クラスターを選んでいればその中に、バリアントグループを選んでいれば表示中のバリアントの中に、同じように新しい行を作る。行の判定は `domain/` に純粋関数として実装してテストし、のちにIDX Editorでも使う。規則は [idx-editor-feedback.md](idx-editor-feedback.md)「行と列の判定」 | `domain/rows.ts`、`usePhyCommands.ts` |
+| 7a | 長押しの切り出し | 長押しの処理を composable に切り出す。挙動は変えない | `usePhyCanvasPointer.ts` |
+| 7b | 長押しの2方式 | ループ方式(間隔を延ばし、円形インジケータと選択先のリストを付ける)と、長押しでリストを出して選ぶ方式を入れ、切り替えて比べる | 7aの composable |
+| 8 | スイッチ・スタビライザーの表示 | 既定は非表示にし、トグルで色違いの十字を出す。プロパティ欄に `switchOffset` の入力欄を置く | 1の層、`PhyProperties.vue` |
+
+順番の理由: 1で作る層を5と8が使う。2〜5は小さく独立しているので先に片付ける。
+7・8は、着手前に下の点を決める必要がある。7は最も大きく、試して比べる部分なので、挙動を変えない切り出しを先に入れる。
+
+着手前に決めること:
+
+- 7b: 長押しの間隔の値。リスト方式でどう選ぶか(離した位置で決めるのか、リストを出したあとにクリックするのか)。
+- 8: スタビライザーを付けるキー幅と、幅ごとの位置。これは事実なので、出典で裏取りしてから決める。推測で実装しない。
+
+覆すときに影響する箇所: `mock/src/ui/phy/`、6の行判定の関数とそのテスト。
+
 ## B. 明示的な未決事項

 ### 未確認事項
Author	SHA1	Message	Date
ewdernaandClaude Opus 5.5	50e672768b	mock: バリアントグループを選んでキーを足すと、表示中のバリアントに新しい行を作る(T-30 単位6) クラスターを選んだときと同じ挙動にそろえる。これまではグループの右隣(親の中)に足していた。 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01XsamNKrWY3obJwR746oQRq	2026-10-23 08:23:44 +09:00
ewdernaandClaude Opus 5.5	e5678d79e6	mock: クラスターを選んでキーを足すと、そのクラスターに新しい行を作る(T-30 単位6) これまではクラスターを1つのノードとして扱い、その右隣(親の中)に足していた。クラスターの中に新しい行を作り、その左端に置く。 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01XsamNKrWY3obJwR746oQRq	2026-10-23 08:18:22 +09:00
ewdernaandClaude Opus 5.5	f64d632136	mock: キー・部品を足したあと、足したノードを選ぶツリーの最後のノードを新しいノードとみなしていたため、クラスター内に足すとツリーでそれより後ろにある別のキーを選んでいた。追加前後のIDの差で特定する。 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01XsamNKrWY3obJwR746oQRq	2026-10-23 08:09:24 +09:00
ewdernaandClaude Opus 5.5	9254d0649b	mock: キー追加を、選択中のキーの行の右端、または新しい行の左端に置く(T-30 単位6) 行の判定は idx-editor-feedback.md の規則(そろっている軸は座標でまとめ、ずれている軸は隣とのつながりで1対1にたどる)を domain/rows.ts に実装し、 IDX Editor でも使えるよう列の判定も合わせて置いた。何も選んでいないときは、コンテナの全キーの下に新しい行を作り、その左端に置く。 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01XsamNKrWY3obJwR746oQRq	2026-10-23 07:54:53 +09:00
ewdernaandClaude Opus 5.5	0697e7a3b4	mock: バリアントのバッジをノードより後に描き、キーの下に隠れないようにするバッジは NodeSvg の再帰の中で各バリアントグループの <g> に描いていたため、後から描かれる兄弟のキーに隠れていた。選択の描画層の後に PhyBadgeLayer を置き、位置は純粋関数 variantBadges でワールド座標に直して正立で描く。フォーカス中、フォーカス外のバッジは薄く描き、クリックを受けない。 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NznQtmVPoQAnietqwr1auL	2026-10-22 14:24:49 +09:00
ewdernaandClaude Opus 5.5	812e2edfc2	mock: 選択中のクラスターにだけ原点の丸を出す(T-30 単位5) 単位1の選択の描画層に、選択中のクラスターとバリアントグループの原点の丸を描く。長押しの候補になっているだけのクラスターには出さない。丸の大きさは画面上で固定する。 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NznQtmVPoQAnietqwr1auL	2026-10-22 09:42:32 +09:00
ewdernaandClaude Opus 5.5	e50722948d	mock: キーを画面の端へ寄せると、キャンバスを自動でスクロールする(T-30 単位4) ノードのドラッグ中にポインタがSVGの端から32px以内か外にあると、 requestAnimationFrame で pan を動かし続け、DOM更新後の最後のポインタ位置でドラッグ位置を計算し直す。速度は端に近いほど速く、上限480px/秒(autoPanVelocity)。範囲選択とパンのドラッグは対象外。 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NznQtmVPoQAnietqwr1auL	2026-10-22 09:39:19 +09:00
ewdernaandClaude Opus 5.5	38954e9b36	mock: バリアントの既定の印・バッジ・作成先を直す(T-30 単位3) ポップオーバーの既定の印を「既定」の札にする。バッジには名前を書かず、表示中のバリアント名はツールチップで示す(はみ出しをなくす。T-30の着手前の決定を反映)。バリアントグループは選択の入れ物(クラスター・バリアント)の中に作る。そのため domain に createVariantGroupInParent を足し、variant のIDを渡すと例外になっていた parentNodes を直した。 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NznQtmVPoQAnietqwr1auL	2026-10-22 09:19:06 +09:00
ewdernaandClaude Opus 5.5	fe1b048ea4	mock: 階層パネルを閉じたら、キャンバスが空いた幅を埋める(T-30 単位2) 閉じたときも3列の grid-template-columns のままで、キャンバスが1列目に詰まっていた。閉じている間は2列(キャンバス・プロパティ欄)に切り替える。 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NznQtmVPoQAnietqwr1auL	2026-10-22 09:13:34 +09:00
ewdernaandClaude Opus 5.5	e92708dc12	mock: 選択枠を太くし、最前面の描画層に移す(T-30 単位1) 選択枠と長押し候補の枠を NodeSvg の再帰から外し、ノードの描画より後に描く PhySelectionLayer に移した。枠はワールド変換とローカル矩形から純粋関数 selectionFrames で求め、画面上3.5pxで描く。部品の選択表示は形状上に残す。 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TDkA8qMQ3Uf1eY3Ar19vjy	2026-10-21 08:42:14 +09:00
ewdernaandClaude Opus 5.5	d110320cb8	provisional: PHY Editorの所感(作り直し1回目)への対応の順番と単位を決める T-29のコードを作り直さず、所感を8単位(長押しは切り出しと機能追加の2つに分ける)に分けて順に直す。選択の描画層を最初に作り、クラスター原点とスイッチ位置のオーバーレイをその層に載せる。キー追加の位置・長押しの2方式・スタビライザー位置は、着手前に決める点を書き出した。 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01ViPACY39UbXMTH3vztB8eW	2026-10-19 08:38:23 +09:00