waveterm/frontend/app/view/term.tsx

70 lines
2.9 KiB
TypeScript

// Copyright 2024, Command Line Inc.
// SPDX-License-Identifier: Apache-2.0
import * as React from "react";
import * as jotai from "jotai";
import { Terminal } from "@xterm/xterm";
import type { ITheme } from "@xterm/xterm";
import { FitAddon } from "@xterm/addon-fit";
import "./view.less";
import "/public/xterm.css";
function getThemeFromCSSVars(el: Element): ITheme {
const theme: ITheme = {};
const elemStyle = getComputedStyle(el);
theme.foreground = elemStyle.getPropertyValue("--term-foreground");
theme.background = elemStyle.getPropertyValue("--term-background");
theme.black = elemStyle.getPropertyValue("--term-black");
theme.red = elemStyle.getPropertyValue("--term-red");
theme.green = elemStyle.getPropertyValue("--term-green");
theme.yellow = elemStyle.getPropertyValue("--term-yellow");
theme.blue = elemStyle.getPropertyValue("--term-blue");
theme.magenta = elemStyle.getPropertyValue("--term-magenta");
theme.cyan = elemStyle.getPropertyValue("--term-cyan");
theme.white = elemStyle.getPropertyValue("--term-white");
theme.brightBlack = elemStyle.getPropertyValue("--term-bright-black");
theme.brightRed = elemStyle.getPropertyValue("--term-bright-red");
theme.brightGreen = elemStyle.getPropertyValue("--term-bright-green");
theme.brightYellow = elemStyle.getPropertyValue("--term-bright-yellow");
theme.brightBlue = elemStyle.getPropertyValue("--term-bright-blue");
theme.brightMagenta = elemStyle.getPropertyValue("--term-bright-magenta");
theme.brightCyan = elemStyle.getPropertyValue("--term-bright-cyan");
theme.brightWhite = elemStyle.getPropertyValue("--term-bright-white");
theme.selectionBackground = elemStyle.getPropertyValue("--term-selection-background");
theme.selectionInactiveBackground = elemStyle.getPropertyValue("--term-selection-background");
theme.cursor = elemStyle.getPropertyValue("--term-selection-background");
theme.cursorAccent = elemStyle.getPropertyValue("--term-cursor-accent");
return theme;
}
const TerminalView = ({ blockId }: { blockId: string }) => {
const connectElemRef = React.useRef<HTMLDivElement>(null);
React.useEffect(() => {
if (!connectElemRef.current) {
return;
}
const term = new Terminal({
theme: getThemeFromCSSVars(connectElemRef.current),
fontSize: 12,
fontFamily: "Hack",
drawBoldTextInBrightColors: false,
fontWeight: "normal",
fontWeightBold: "bold",
});
const fitAddon = new FitAddon();
term.loadAddon(fitAddon);
term.open(connectElemRef.current);
fitAddon.fit();
term.write("Hello, world!");
return () => {
term.dispose();
};
}, [connectElemRef.current]);
return <div key="conntectElem" className="view-term term-connectelem" ref={connectElemRef}></div>;
};
export { TerminalView };