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Add copy functionality to JsonView component #761

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Add copy functionality to JsonView component #761

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cf3c0ec
added copy functionality to JsonView component
ln-12 Aug 28, 2025
fde9221
Merge branch 'main' of https://github.com/modelcontextprotocol/inspec…
ln-12 Oct 2, 2025
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104 changes: 100 additions & 4 deletions client/src/components/JsonView.tsx
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
import { useState, memo, useMemo, useCallback } from "react";
import { useState, memo, useMemo, useCallback, useEffect } from "react";
import type React from "react";
import type { JsonValue } from "@/utils/jsonUtils";
import clsx from "clsx";
import { Copy, CheckCheck } from "lucide-react";
Expand Down Expand Up @@ -51,7 +52,7 @@
variant: "destructive",
});
}
}, [toast, normalizedData]);

Check warning on line 55 in client/src/components/JsonView.tsx

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GitHub Actions / build 

React Hook useCallback has a missing dependency: 'setCopied'. Either include it or remove the dependency array

return (
<div className={clsx("p-4 border rounded relative", className)}>
Expand Down Expand Up @@ -101,6 +102,7 @@
initialExpandDepth,
isError = false,
}: JsonNodeProps) => {
const { toast } = useToast();
const [isExpanded, setIsExpanded] = useState(depth < initialExpandDepth);
const [typeStyleMap] = useState<Record<string, string>>({
number: "text-blue-600",
Expand All @@ -113,6 +115,52 @@
});
const dataType = getDataType(data);

const [copied, setCopied] = useState(false);
useEffect(() => {
let timeoutId: NodeJS.Timeout;
if (copied) {
timeoutId = setTimeout(() => setCopied(false), 500);
}
return () => {
if (timeoutId) clearTimeout(timeoutId);
};
}, [copied]);

const handleCopyValue = useCallback(
(value: JsonValue) => {
try {
let text: string;
const valueType = getDataType(value);
switch (valueType) {
case "string":
text = value as unknown as string;
break;
case "number":
case "boolean":
text = String(value);
break;
case "null":
text = "null";
break;
case "undefined":
text = "undefined";
break;
default:
text = JSON.stringify(value);
}
navigator.clipboard.writeText(text);
setCopied(true);
} catch (error) {
toast({
title: "Error",
description: `There was an error coping result into the clipboard: ${error instanceof Error ? error.message : String(error)}`,
variant: "destructive",
});
}
},
[toast],
);

const renderCollapsible = (isArray: boolean) => {
const items = isArray
? (data as JsonValue[])
Expand Down Expand Up @@ -206,7 +254,7 @@

if (!isTooLong) {
return (
<div className="flex mr-1 rounded hover:bg-gray-800/20">
<div className="flex mr-1 rounded hover:bg-gray-800/20 group items-start">
{name && (
<span className="mr-1 text-gray-600 dark:text-gray-400">
{name}:
Expand All @@ -220,12 +268,28 @@
>
"{value}"
</pre>
<Button
variant="ghost"
className="ml-1 h-6 w-6 p-0 opacity-0 group-hover:opacity-100"
onClick={(e: React.MouseEvent<HTMLButtonElement>) => {
e.stopPropagation();
handleCopyValue(value as unknown as JsonValue);
}}
aria-label={name ? `Copy value of ${name}` : "Copy value"}
title={name ? `Copy value of ${name}` : "Copy value"}
>
{copied ? (
<CheckCheck className="size-4 dark:text-green-700 text-green-600" />
) : (
<Copy className="size-4 text-foreground" />
)}
</Button>
</div>
);
}

return (
<div className="flex mr-1 rounded group hover:bg-gray-800/20">
<div className="flex mr-1 rounded group hover:bg-gray-800/20 items-start">
{name && (
<span className="mr-1 text-gray-600 dark:text-gray-400 dark:group-hover:text-gray-100 group-hover:text-gray-400">
{name}:
Expand All @@ -241,6 +305,22 @@
>
{isExpanded ? `"${value}"` : `"${value.slice(0, maxLength)}..."`}
</pre>
<Button
variant="ghost"
className="ml-1 h-6 w-6 p-0 opacity-0 group-hover:opacity-100"
onClick={(e: React.MouseEvent<HTMLButtonElement>) => {
e.stopPropagation();
handleCopyValue(value as unknown as JsonValue);
}}
aria-label={name ? `Copy value of ${name}` : "Copy value"}
title={name ? `Copy value of ${name}` : "Copy value"}
>
{copied ? (
<CheckCheck className="size-4 dark:text-green-700 text-green-600" />
) : (
<Copy className="size-4 text-foreground" />
)}
</Button>
</div>
);
};
Expand All @@ -253,7 +333,7 @@
return renderString(data as string);
default:
return (
<div className="flex items-center mr-1 rounded hover:bg-gray-800/20">
<div className="flex items-center mr-1 rounded hover:bg-gray-800/20 group">
{name && (
<span className="mr-1 text-gray-600 dark:text-gray-400">
{name}:
Expand All @@ -262,6 +342,22 @@
<span className={typeStyleMap[dataType] || typeStyleMap.default}>
{data === null ? "null" : String(data)}
</span>
<Button
variant="ghost"
className="ml-1 h-6 w-6 p-0 opacity-0 group-hover:opacity-100"
onClick={(e: React.MouseEvent<HTMLButtonElement>) => {
e.stopPropagation();
handleCopyValue(data as JsonValue);
}}
aria-label={name ? `Copy value of ${name}` : "Copy value"}
title={name ? `Copy value of ${name}` : "Copy value"}
>
{copied ? (
<CheckCheck className="size-4 dark:text-green-700 text-green-600" />
) : (
<Copy className="size-4 text-foreground" />
)}
</Button>
</div>
);
}
Expand Down
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