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Merged
devlensio merged 3 commits into from
Jun 5, 2026
Merged

added a tooltip for each node showing details about the node #5

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bca1d07
added a tooltip for each node showing details about the node
May 21, 2026
999f070
Merge branch 'main' into feature/node-hover-effect
haharimoto Jun 2, 2026
55f9140
restored deleted file
Jun 5, 2026
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12 changes: 3 additions & 9 deletions bun.lock
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158 changes: 150 additions & 8 deletions frontend/components/graph/GraphCanvas.tsx
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Original file line number Diff line number Diff line change
@@ -1,12 +1,123 @@
import { CodeEdge, CodeNode } from "@/lib/types";
import { useEffect, useRef, useImperativeHandle, forwardRef } from "react";
import { useEffect, useRef, useImperativeHandle, forwardRef, useState } from "react";
import cytoscape from "cytoscape";
import fcose from "cytoscape-fcose";
import { toElements } from "./cytoscopeUtils";
import { getCytoscapeStyles, getLayoutConfig } from "./cytoscapeConfig";

cytoscape.use(fcose);

// ─── Tooltip ──────────────────────────────────────────────────────────────────

interface TooltipInfo {
x: number;
y: number;
type: string;
filePath: string;
score: number;
hasState: boolean;
hooks: string[];
children: string[];
}

const TOOLTIP_TYPE_COLORS: Record<string, { bg: string; text: string; border: string }> = {
COMPONENT: { bg: "#2dd4bf18", text: "#2dd4bf", border: "#2dd4bf30" },
HOOK: { bg: "#c084fc18", text: "#c084fc", border: "#c084fc30" },
FUNCTION: { bg: "#60a5fa18", text: "#60a5fa", border: "#60a5fa30" },
STATE_STORE: { bg: "#fb923c18", text: "#fb923c", border: "#fb923c30" },
UTILITY: { bg: "#94a3b818", text: "#94a3b8", border: "#94a3b830" },
FILE: { bg: "#f472b618", text: "#f472b6", border: "#f472b630" },
GHOST: { bg: "#6b728018", text: "#6b7280", border: "#6b728030" },
ROUTE: { bg: "#818cf818", text: "#818cf8", border: "#818cf830" },
TEST: { bg: "#f9731618", text: "#f97316", border: "#f9731630" },
STORY: { bg: "#a78bfa18", text: "#a78bfa", border: "#a78bfa30" },
};

function NodeTooltip({ t }: { t: TooltipInfo }) {
const colors = TOOLTIP_TYPE_COLORS[t.type] ?? { bg: "#21262d", text: "#8b949e", border: "#30363d" };
const shortPath = t.filePath.split("/").slice(-3).join("/");
const hasExtra = t.hasState || t.hooks.length > 0 || t.children.length > 0;

return (
<div
className="absolute pointer-events-none z-50"
style={{ left: t.x + 16, top: t.y - 8, transform: "translateY(-100%)" }}
>
<div
className="rounded-lg px-3 py-2.5 text-xs shadow-xl"
style={{
background: "#161b22",
border: "1px solid #30363d",
minWidth: 180,
maxWidth: 280,
}}
>
{/* Type badge */}
<span
className="inline-block mb-1.5 px-1.5 py-0.5 rounded text-[10px] font-medium uppercase tracking-wide"
style={{ background: colors.bg, color: colors.text, border: `1px solid ${colors.border}` }}
>
{t.type.replace("_", " ")}
</span>

{/* File path */}
<div
className="font-mono truncate"
style={{ color: "#2dd4bf" }}
title={t.filePath}
>
{shortPath}
</div>

{/* Divider */}
{hasExtra && (
<div className="my-2" style={{ borderTop: "1px solid #21262d" }} />
)}

{/* Hooks */}
{t.hooks.length > 0 && (
<div className="font-mono truncate mb-1" style={{ color: "#6e7681", fontSize: "10px" }}>
{t.hooks.slice(0, 4).join(", ")}{t.hooks.length > 4 ? " …" : ""}
</div>
)}

{/* Local state pill */}
{t.hasState && (
<div className="flex items-center gap-1.5 mb-1" style={{ color: "#8b949e" }}>
<span className="w-1.5 h-1.5 rounded-full shrink-0" style={{ background: "#60a5fa" }} />
Local state
</div>
)}

{/* Direct children */}
{t.children.length > 0 && (
<div className="mt-1">
<div className="uppercase tracking-wide mb-1" style={{ color: "#484f58", fontSize: "10px" }}>
Children
</div>
<div className="flex flex-wrap gap-1">
{t.children.slice(0, 8).map((name) => (
<span
key={name}
className="px-1.5 py-0.5 rounded font-mono"
style={{ background: "#21262d", color: "#8b949e", fontSize: "10px" }}
>
{name}
</span>
))}
{t.children.length > 8 && (
<span className="px-1.5 py-0.5" style={{ color: "#484f58", fontSize: "10px" }}>
+{t.children.length - 8} more
</span>
)}
</div>
</div>
)}
</div>
</div>
);
}

// ─── Exposed handle ───────────────────────────────────────────────────────────

export interface GraphCanvasHandle {
Expand All @@ -30,6 +141,7 @@ const GraphCanvas = forwardRef<GraphCanvasHandle, GraphCanvasProps>(
({ nodes, edges, onNodeClick }, ref) => {
const containerRef = useRef<HTMLDivElement>(null);
const cyRef = useRef<cytoscape.Core | null>(null);
const [tooltip, setTooltip] = useState<TooltipInfo | null>(null);

useImperativeHandle(ref, () => ({
focusNode(nodeId: string) {
Expand Down Expand Up @@ -148,8 +260,35 @@ const GraphCanvas = forwardRef<GraphCanvasHandle, GraphCanvasProps>(
e.target.style("z-index", 9999);
onNodeClick?.(e.target.id());
});
cy.on("mouseover", "node", (e) => e.target.addClass("hover"));
cy.on("mouseout", "node", (e) => e.target.removeClass("hover"));
cy.on("mouseover", "node", (e) => {
e.target.addClass("hover");
const pos = e.target.renderedPosition() as { x: number; y: number };
const meta = e.target.data("metadata") as Record<string, unknown> | undefined;
const hooks = Array.isArray(meta?.hooks) ? (meta!.hooks as string[]) : [];

const children: string[] = [];
e.target.outgoers("edge").forEach((edge: cytoscape.EdgeSingular) => {
if (edge.data("type") === "PROP_PASS") {
children.push(edge.target().data("label") as string);
}
});

setTooltip({
x: pos.x,
y: pos.y,
type: e.target.data("type") as string,
filePath: e.target.data("filePath") as string,
score: e.target.data("score") as number,
hasState: !!(meta?.hasState),
hooks,
children,
});
});
cy.on("mouseout", "node", (e) => {
e.target.removeClass("hover");
setTooltip(null);
});
cy.on("pan zoom", () => setTooltip(null));
cy.on("tap", (e) => {
if (e.target === cy) {
cy.nodes().style("z-index", 1);
Expand All @@ -164,11 +303,14 @@ const GraphCanvas = forwardRef<GraphCanvasHandle, GraphCanvasProps>(
}, []);

return (
<div
ref={containerRef}
className="w-full h-full"
style={{ background: "#13191f" }}
/>
<div className="relative w-full h-full">
<div
ref={containerRef}
className="w-full h-full"
style={{ background: "#13191f" }}
/>
{tooltip && <NodeTooltip t={tooltip} />}
</div>
);
},
);
Expand Down