update

package-lock.json

@@ -10,7 +10,8 @@
       "license": "MIT",
       "dependencies": {
         "@types/cytoscape": "^3.21.9",
-        "cytoscape": "^3.33.4"
+        "cytoscape": "^3.33.4",
+        "cytoscape-node-html-label": "^1.2.2"
       },
       "devDependencies": {
         "@types/node": "^20.11.0",
@@ -518,6 +519,21 @@
         "node": ">=0.10"
       }
     },
+    "node_modules/cytoscape-node-html-label": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/cytoscape-node-html-label/-/cytoscape-node-html-label-1.2.2.tgz",
+      "integrity": "sha512-oUVwrlsIlaJJ8QrQFSMdv3uXVXPg6tMH/Tfofr8JuZIovqI4fPqBi6sQgCMcVpS6k9Td0TTjowBsNRw32CESWg==",
+      "license": "MIT",
+      "peerDependencies": {
+        "@types/cytoscape": "^3.1.0",
+        "cytoscape": "^3.0.0"
+      },
+      "peerDependenciesMeta": {
+        "@types/cytoscape": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/esbuild": {
       "version": "0.20.2",
       "resolved": "https://registry.npmjs.org/esbuild/-/esbuild-0.20.2.tgz",

package.json

@@ -20,6 +20,7 @@
   },
   "dependencies": {
     "@types/cytoscape": "^3.21.9",
-    "cytoscape": "^3.33.4"
+    "cytoscape": "^3.33.4",
+    "cytoscape-node-html-label": "^1.2.2"
   }
 }

src/views/GraphView.ts

@@ -1,6 +1,40 @@
 import { App, Notice, WorkspaceLeaf, normalizePath } from "obsidian";
 import cytoscape, { Core, NodeSingular } from "cytoscape";
+// @ts-ignore — no exported types
+import nodeHtmlLabel from "cytoscape-node-html-label";
 import { CORE_FILE } from "../const";
+
+let htmlLabelRegistered = false;
+function ensureHtmlLabel(): void {
+  if (htmlLabelRegistered) return;
+  cytoscape.use(nodeHtmlLabel as never);
+  htmlLabelRegistered = true;
+}
+
+function escapeHtml(s: string): string {
+  return s
+    .replace(/&/g, "&")
+    .replace(/</g, "&lt;")
+    .replace(/>/g, "&gt;")
+    .replace(/"/g, "&quot;")
+    .replace(/'/g, "&#39;");
+}
+
+function nodeTemplate(data: { name: string; features: string[] }): string {
+  const name = escapeHtml(data.name);
+  const badges = data.features
+    .map(
+      (f) =>
+        `<span class="pk-badge" data-action="open-feature" data-feature="${escapeHtml(f)}">${escapeHtml(f)}</span>`,
+    )
+    .join("");
+  return `
+    <div class="pk-graph-node" data-node="${name}">
+      <strong data-action="open-collection">${name}</strong>
+      ${data.features.length ? `<div class="pk-badges">${badges}</div>` : ""}
+    </div>
+  `;
+}
 import {
   projectPath,
   collectionPath,
@@ -9,6 +43,7 @@ import {
   listCollectionFeatures,
   createCollection,
   renameCollection,
+  createFeature,
   deleteRecursive,
 } from "../fs";
 import { menu, openMarkdown } from "../ui";
@@ -37,6 +72,7 @@ function validateName(name: string, taken: string[], current?: string): string |
 export class GraphView {
   private cy: Core | null = null;
   private host: HTMLElement | null = null;
+  private docListeners: Array<() => void> = [];
 
   constructor(
     private app: App,
@@ -46,6 +82,8 @@ export class GraphView {
   ) {}
 
   destroy(): void {
+    for (const off of this.docListeners) off();
+    this.docListeners = [];
     if (this.cy) {
       this.cy.destroy();
       this.cy = null;
@@ -55,6 +93,7 @@ export class GraphView {
 
   async render(parent: HTMLElement): Promise<void> {
     this.destroy();
+    ensureHtmlLabel();
     const container = parent.createDiv({ cls: "pk-graph" });
     this.host = container;
 
@@ -63,11 +102,8 @@ export class GraphView {
 
     const elements = this.buildElements(data, collections);
     const styles = getComputedStyle(parent);
-    const textColor = styles.getPropertyValue("--text-normal").trim() || "#222";
-    const borderColor = styles.getPropertyValue("--background-modifier-border").trim() || "#ccc";
     const edgeColor = styles.getPropertyValue("--text-muted").trim() || "#888";
     const accent = styles.getPropertyValue("--interactive-accent").trim() || "#7b6cd9";
-    const bgNode = styles.getPropertyValue("--background-primary").trim() || "#fff";
 
     this.cy = cytoscape({
       container,
@@ -77,22 +113,15 @@ export class GraphView {
       userPanningEnabled: true,
       style: [
         {
-          selector: "node",
+          selector: "node[name]",
           style: {
-            label: "data(label)",
+            "background-color": "rgba(0,0,0,0)",
-            "text-valign": "center",
+            "background-opacity": 0,
-            "text-halign": "center",
+            "border-width": 0,
-            "text-wrap": "wrap",
-            "text-max-width": "160px",
-            "background-color": bgNode,
-            "border-color": borderColor,
-            "border-width": 1,
-            color: textColor,
-            "font-size": 12,
             shape: "round-rectangle",
-            width: "label" as unknown as number,
+            label: "",
-            height: "label" as unknown as number,
+            width: "data(w)" as unknown as number,
-            padding: "10px",
+            height: "data(h)" as unknown as number,
           },
         },
         {
@@ -100,9 +129,13 @@ export class GraphView {
           style: {
             shape: "ellipse",
             "background-color": accent,
+            "background-opacity": 1,
             color: "#fff",
             "border-width": 0,
             "font-weight": "bold",
+            label: "data(label)",
+            "text-valign": "center",
+            "text-halign": "center",
             width: 80,
             height: 80,
           },
@@ -112,6 +145,7 @@ export class GraphView {
           style: {
             "border-color": accent,
             "border-width": 3,
+            "background-opacity": 0.05,
           },
         },
         {
@@ -129,9 +163,9 @@ export class GraphView {
         name: "concentric",
         concentric: (node) => -((node.data("depth") as number) ?? 0),
         levelWidth: () => 1,
-        minNodeSpacing: 60,
+        minNodeSpacing: 80,
         // @ts-ignore — spacingFactor exists in concentric layout
-        spacingFactor: 1.4,
+        spacingFactor: 1.6,
         fit: true,
         padding: 30,
         startAngle: -Math.PI / 2,
@@ -139,6 +173,18 @@ export class GraphView {
       },
     });
 
+    // @ts-ignore — added by cytoscape-node-html-label
+    this.cy.nodeHtmlLabel([
+      {
+        query: "node[name]",
+        halign: "center",
+        valign: "center",
+        halignBox: "center",
+        valignBox: "center",
+        tpl: (d: { name: string; features: string[] }) => nodeTemplate(d),
+      },
+    ]);
+
     this.bindHandlers();
   }
 
@@ -161,13 +207,11 @@ export class GraphView {
         if (visited.has(child)) continue;
         visited.add(child);
         const id = `n_${child}`;
+        const features = listCollectionFeatures(this.app, this.project, child)
+          .map((f) => f.basename);
+        const { w, h } = this.nodeSize(features.length);
         els.push({
-          data: {
+          data: { id, name: child, depth, features, w, h },
-            id,
-            name: child,
-            label: this.nodeLabel(child),
-            depth,
-          },
         });
         els.push({ data: { source: parentId, target: id } });
         walk(child, id, depth + 1);
@@ -177,11 +221,11 @@ export class GraphView {
     return els;
   }
 
-  private nodeLabel(collection: string): string {
+  private nodeSize(featureCount: number): { w: number; h: number } {
-    const features = listCollectionFeatures(this.app, this.project, collection)
+    const w = 180;
-      .map((f) => f.basename);
+    const rows = Math.max(1, Math.ceil(featureCount / 2));
-    if (features.length === 0) return collection;
+    const h = 40 + rows * 26;
-    return `${collection}\n${features.map((f) => `• ${f}`).join("  ")}`;
+    return { w, h };
   }
 
   private bindHandlers(): void {
@@ -190,31 +234,9 @@ export class GraphView {
 
     cy.on("tap", "node", (ev) => {
       const node = ev.target as NodeSingular;
-      if (node.id() === ROOT_ID) {
+      if (node.id() !== ROOT_ID) return;
       const corePath = normalizePath(`${projectPath(this.project)}/${CORE_FILE}`);
       void openMarkdown(this.app, corePath, this.leaf);
-        return;
-      }
-      const name = node.data("name") as string;
-      void openMarkdown(this.app, collectionMdPath(this.project, name), this.leaf);
-    });
-
-    cy.on("cxttap", "node", (ev) => {
-      const node = ev.target as NodeSingular;
-      const oe = ev.originalEvent as MouseEvent;
-      oe.preventDefault();
-      if (node.id() === ROOT_ID) {
-        menu(oe, [
-          { title: "Node erstellen", icon: "plus", onClick: () => this.openCreateChild(null) },
-        ]);
-        return;
-      }
-      const name = node.data("name") as string;
-      menu(oe, [
-        { title: "Child-Node erstellen", icon: "plus", onClick: () => this.openCreateChild(name) },
-        { title: "Umbenennen", icon: "pencil", onClick: () => this.openRename(name) },
-        { title: "Löschen", icon: "trash", onClick: () => this.deleteNode(name) },
-      ]);
     });
 
     cy.on("cxttap", (ev) => {
@@ -226,74 +248,153 @@ export class GraphView {
       ]);
     });
 
-    let grabbed: NodeSingular | null = null;
+    if (this.host) this.bindHtmlHandlers(this.host);
-    let grabStart: { x: number; y: number } | null = null;
+  }
 
-    cy.on("grab", "node", (ev) => {
+  private bindHtmlHandlers(host: HTMLElement): void {
-      const n = ev.target as NodeSingular;
+    host.addEventListener("contextmenu", (ev) => {
-      if (n.id() === ROOT_ID) return;
+      const target = ev.target as HTMLElement;
-      grabbed = n;
+      const nodeEl = target.closest<HTMLElement>(".pk-graph-node");
-      const pos = n.position();
+      if (!nodeEl) return;
-      grabStart = { x: pos.x, y: pos.y };
+      const name = nodeEl.dataset.node;
+      if (!name) return;
+      ev.preventDefault();
+      ev.stopPropagation();
+      menu(ev as MouseEvent, [
+        { title: "Feature erstellen", icon: "plus", onClick: () => this.openCreateFeature(name) },
+        { title: "Child-Node erstellen", icon: "plus", onClick: () => this.openCreateChild(name) },
+        { title: "Umbenennen", icon: "pencil", onClick: () => this.openRename(name) },
+        { title: "Löschen", icon: "trash", onClick: () => this.deleteNode(name) },
+      ]);
     });
 
-    cy.on("drag", "node", (ev) => {
+    const THRESHOLD = 6;
-      if (!grabbed || ev.target.id() !== grabbed.id()) return;
+    let dragName: string | null = null;
-      const hovered = this.nodeAtPoint(grabbed.position(), grabbed.id());
+    let sourceEl: HTMLElement | null = null;
-      cy.nodes(".pk-drop-target").removeClass("pk-drop-target");
+    let downPos: { x: number; y: number } | null = null;
-      if (hovered) hovered.addClass("pk-drop-target");
+    let dragging = false;
+
+    const clearDropClasses = () => {
+      host.querySelectorAll<HTMLElement>(".pk-drop-target").forEach((el) =>
+        el.removeClass("pk-drop-target"),
+      );
+      host.removeClass("pk-drop-target-bg");
+    };
+
+    const resetDrag = () => {
+      if (sourceEl) sourceEl.removeClass("pk-dragging");
+      clearDropClasses();
+      dragName = null;
+      sourceEl = null;
+      downPos = null;
+      dragging = false;
+    };
+
+    host.addEventListener("mousedown", (ev) => {
+      if (ev.button !== 0) return;
+      const nodeEl = (ev.target as HTMLElement).closest<HTMLElement>(".pk-graph-node");
+      if (!nodeEl) return;
+      dragName = nodeEl.dataset.node ?? null;
+      sourceEl = nodeEl;
+      downPos = { x: ev.clientX, y: ev.clientY };
+      dragging = false;
     });
 
-    cy.on("free", "node", (ev) => {
+    const onMouseMove = (ev: MouseEvent) => {
-      if (!grabbed || ev.target.id() !== grabbed.id()) return;
+      if (!dragName || !downPos) return;
-      const node = grabbed;
+      const dx = ev.clientX - downPos.x;
-      const start = grabStart;
+      const dy = ev.clientY - downPos.y;
-      grabbed = null;
+      if (!dragging) {
-      grabStart = null;
+        if (Math.hypot(dx, dy) < THRESHOLD) return;
-      cy.nodes(".pk-drop-target").removeClass("pk-drop-target");
+        dragging = true;
+        sourceEl?.addClass("pk-dragging");
+      }
+      clearDropClasses();
+      const el = document.elementFromPoint(ev.clientX, ev.clientY);
+      const hit = el?.closest<HTMLElement>(".pk-graph-node");
+      if (hit && hit !== sourceEl) {
+        hit.addClass("pk-drop-target");
+      } else if (host.contains(el as Node) && !hit) {
+        host.addClass("pk-drop-target-bg");
+      }
+    };
 
-      const target = this.nodeAtPoint(node.position(), node.id());
+    const onMouseUp = (ev: MouseEvent) => {
-      if (!target) {
+      if (!dragName) return;
-        if (start) node.position(start);
+
+      if (!dragging) {
+        const el = document.elementFromPoint(ev.clientX, ev.clientY);
+        const upNode = el?.closest<HTMLElement>(".pk-graph-node");
+        const upName = upNode?.dataset.node ?? null;
+        if (upName && upName === dragName) {
+          const featEl = el?.closest<HTMLElement>("[data-action='open-feature']");
+          if (featEl?.dataset.feature) {
+            void openMarkdown(
+              this.app,
+              normalizePath(`${collectionPath(this.project, upName)}/${featEl.dataset.feature}.md`),
+              this.leaf,
+            );
+          } else {
+            void openMarkdown(this.app, collectionMdPath(this.project, upName), this.leaf);
+          }
+        }
+        resetDrag();
         return;
       }
-      const childName = node.data("name") as string;
-      const newParent = target.id() === ROOT_ID ? null : (target.data("name") as string);
-      void this.handleReparent(childName, newParent, start);
-    });
-  }
 
-  private nodeAtPoint(pos: { x: number; y: number }, excludeId: string): NodeSingular | null {
+      const source = dragName;
-    if (!this.cy) return null;
+      const el = document.elementFromPoint(ev.clientX, ev.clientY);
-    let hit: NodeSingular | null = null;
+      const targetEl = el?.closest<HTMLElement>(".pk-graph-node");
-    this.cy.nodes().forEach((n) => {
+      const targetInHost = host.contains(el as Node);
-      if (n.id() === excludeId) return;
+      const targetName = targetEl && targetEl !== sourceEl
-      const bb = n.boundingBox({});
+        ? (targetEl.dataset.node ?? null)
-      if (pos.x >= bb.x1 && pos.x <= bb.x2 && pos.y >= bb.y1 && pos.y <= bb.y2) {
+        : null;
-        hit = n;
+      const validDrop = !!targetEl || targetInHost;
-      }
+      resetDrag();
-    });
+      if (!validDrop) return;
-    return hit;
+      if (targetName === source) return;
+      void this.handleReparent(source, targetName);
+    };
+
+    document.addEventListener("mousemove", onMouseMove);
+    document.addEventListener("mouseup", onMouseUp);
+    this.docListeners.push(
+      () => document.removeEventListener("mousemove", onMouseMove),
+      () => document.removeEventListener("mouseup", onMouseUp),
+    );
   }
 
   private async handleReparent(
     child: string,
     newParent: string | null,
-    start: { x: number; y: number } | null,
   ): Promise<void> {
     const data = await readGraph(this.app, this.project);
     const next = setParent(data, child, newParent);
-    if (JSON.stringify(next) === JSON.stringify(data)) {
+    if (JSON.stringify(next) === JSON.stringify(data)) return;
-      if (start && this.cy) {
-        const n = this.cy.getElementById(`n_${child}`);
-        if (n.nonempty()) n.position(start);
-      }
-      return;
-    }
     await writeGraph(this.app, this.project, next);
     this.onChange();
   }
 
+  private openCreateFeature(collectionName: string): void {
+    const taken = listCollectionFeatures(this.app, this.project, collectionName).map(
+      (f) => f.basename,
+    );
+    new NameModal(this.app, {
+      title: "Neues Feature",
+      label: "Feature-Name",
+      cta: "Erstellen",
+      validate: (n) => validateName(n, taken),
+      onSubmit: async (name) => {
+        try {
+          await createFeature(this.app, this.project, collectionName, name);
+          this.onChange();
+        } catch (e) {
+          new Notice(`Fehler: ${(e as Error).message}`);
+        }
+      },
+    }).open();
+  }
+
   private openCreateChild(parent: string | null): void {
     const taken = listFolders(this.app, projectPath(this.project)).map((c) => c.name);
     new NameModal(this.app, {

styles.css

@@ -213,6 +213,56 @@
   color: var(--text-normal);
 }
 
+/* Graph: HTML-Node */
+.pk-graph-node {
+  box-sizing: border-box;
+  width: 160px;
+  padding: 8px 10px;
+  background: var(--background-secondary);
+  border: 1px solid var(--background-modifier-border);
+  border-radius: 6px;
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+  align-items: stretch;
+  text-align: center;
+  color: var(--text-normal);
+  overflow-wrap: anywhere;
+  font-size: 0.85em;
+  user-select: none;
+}
+
+.pk-graph-node strong {
+  font-weight: 600;
+  cursor: pointer;
+}
+
+.pk-graph-node strong:hover {
+  color: var(--text-accent);
+}
+
+.pk-graph-node .pk-badges {
+  justify-content: center;
+}
+
+.pk-graph-node .pk-badge {
+  cursor: pointer;
+}
+
+.pk-graph-node.pk-drop-target {
+  border-color: var(--interactive-accent);
+  border-width: 2px;
+}
+
+.pk-graph-node.pk-dragging {
+  opacity: 0.4;
+}
+
+.pk-graph.pk-drop-target-bg {
+  outline: 2px dashed var(--interactive-accent);
+  outline-offset: -8px;
+}
+
 /* Collection-Card Badges */
 .pk-badges {
   display: flex;