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import hljs from "highlight.js";
import { useEffect, useState } from "react";
import styled from "styled-components";
import { defaultBorderRadius, secondaryDark, vscBackground } from ".";
import { Clipboard, CheckCircle } from "@styled-icons/heroicons-outline";
import StyledCode from "./StyledCode";
const StyledPre = styled.pre`
overflow-y: scroll;
word-wrap: normal;
border: 0.5px solid gray;
border-radius: ${defaultBorderRadius};
background-color: ${secondaryDark};
position: relative;
`;
const CopyButtonDiv = styled.div`
position: absolute;
top: 4px;
right: 4px;
`;
const StyledCopyButton = styled.button<{ visible: boolean }>`
border: none;
background-color: transparent;
cursor: pointer;
visibility: ${(props) => (props.visible ? "visible" : "hidden")};
`;
function CopyButton(props: { textToCopy: string; visible: boolean }) {
const [hovered, setHovered] = useState<boolean>(false);
const [clicked, setClicked] = useState<boolean>(false);
return (
<>
<StyledCopyButton
onMouseEnter={() => {
setHovered(true);
}}
onMouseLeave={() => {
setHovered(false);
}}
visible={clicked || props.visible}
onClick={() => {
navigator.clipboard.writeText(props.textToCopy);
setClicked(true);
setTimeout(() => {
setClicked(false);
}, 2000);
}}
>
{clicked ? (
<CheckCircle color="#00ff00" size="1.5em" />
) : (
<Clipboard color={hovered ? "#00ff00" : "white"} size="1.5em" />
)}
</StyledCopyButton>
</>
);
}
function CodeBlock(props: { children: string; showCopy?: boolean }) {
const [result, setResult] = useState<AutoHighlightResult | undefined>(
undefined
);
const [highlightTimeout, setHighlightTimeout] = useState<
NodeJS.Timeout | undefined
>(undefined);
useEffect(() => {
// Don't highlight more than once every 100ms
if (highlightTimeout) {
return;
}
setHighlightTimeout(
setTimeout(() => {
const result = hljs.highlightAuto(props.children, [
"python",
"javascript",
"typescript",
"bash",
"html",
"css",
"json",
"yaml",
"markdown",
"sql",
"java",
"c",
"cpp",
"csharp",
"go",
"kotlin",
"php",
"ruby",
"rust",
"scala",
"swift",
"dart",
"haskell",
"perl",
"r",
"julia",
"objectivec",
"ocaml",
]);
setResult(result);
setHighlightTimeout(undefined);
}, 100)
);
}, [props.children]);
const [hovered, setHovered] = useState<boolean>(false);
return (
<StyledPre
onMouseEnter={() => {
setHovered(true);
}}
onMouseLeave={() => {
setHovered(false);
}}
>
<CopyButtonDiv>
<CopyButton
visible={hovered && (props.showCopy || true)}
textToCopy={props.children}
/>
</CopyButtonDiv>
<StyledCode language={result?.language}>{props.children}</StyledCode>
</StyledPre>
);
}
export default CodeBlock;
|
