2024-05-14 08:45:41 +02:00
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// Copyright 2024, Command Line Inc.
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// SPDX-License-Identifier: Apache-2.0
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import * as React from "react";
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import * as jotai from "jotai";
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import { Terminal } from "@xterm/xterm";
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import type { ITheme } from "@xterm/xterm";
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import { FitAddon } from "@xterm/addon-fit";
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2024-05-15 01:53:03 +02:00
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import { Button } from "@/element/button";
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import * as BlockService from "@/bindings/pkg/service/blockservice/BlockService";
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import { getBlockSubject } from "@/store/global";
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import { base64ToArray } from "@/util/util";
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import "./view.less";
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import "/public/xterm.css";
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function getThemeFromCSSVars(el: Element): ITheme {
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const theme: ITheme = {};
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const elemStyle = getComputedStyle(el);
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theme.foreground = elemStyle.getPropertyValue("--term-foreground");
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theme.background = elemStyle.getPropertyValue("--term-background");
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theme.black = elemStyle.getPropertyValue("--term-black");
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theme.red = elemStyle.getPropertyValue("--term-red");
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theme.green = elemStyle.getPropertyValue("--term-green");
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theme.yellow = elemStyle.getPropertyValue("--term-yellow");
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theme.blue = elemStyle.getPropertyValue("--term-blue");
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theme.magenta = elemStyle.getPropertyValue("--term-magenta");
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theme.cyan = elemStyle.getPropertyValue("--term-cyan");
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theme.white = elemStyle.getPropertyValue("--term-white");
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theme.brightBlack = elemStyle.getPropertyValue("--term-bright-black");
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theme.brightRed = elemStyle.getPropertyValue("--term-bright-red");
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theme.brightGreen = elemStyle.getPropertyValue("--term-bright-green");
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theme.brightYellow = elemStyle.getPropertyValue("--term-bright-yellow");
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theme.brightBlue = elemStyle.getPropertyValue("--term-bright-blue");
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theme.brightMagenta = elemStyle.getPropertyValue("--term-bright-magenta");
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theme.brightCyan = elemStyle.getPropertyValue("--term-bright-cyan");
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theme.brightWhite = elemStyle.getPropertyValue("--term-bright-white");
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theme.selectionBackground = elemStyle.getPropertyValue("--term-selection-background");
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theme.selectionInactiveBackground = elemStyle.getPropertyValue("--term-selection-background");
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theme.cursor = elemStyle.getPropertyValue("--term-selection-background");
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theme.cursorAccent = elemStyle.getPropertyValue("--term-cursor-accent");
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return theme;
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}
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const TerminalView = ({ blockId }: { blockId: string }) => {
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const connectElemRef = React.useRef<HTMLDivElement>(null);
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const termRef = React.useRef<Terminal>(null);
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React.useEffect(() => {
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if (!connectElemRef.current) {
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return;
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}
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const term = new Terminal({
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theme: getThemeFromCSSVars(connectElemRef.current),
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fontSize: 12,
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fontFamily: "Hack",
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drawBoldTextInBrightColors: false,
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fontWeight: "normal",
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fontWeightBold: "bold",
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});
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termRef.current = term;
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const fitAddon = new FitAddon();
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term.loadAddon(fitAddon);
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term.open(connectElemRef.current);
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fitAddon.fit();
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BlockService.SendCommand(blockId, {
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command: "controller:input",
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termsize: { rows: term.rows, cols: term.cols },
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});
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term.onData((data) => {
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const b64data = btoa(data);
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const inputCmd = { command: "controller:input", blockid: blockId, inputdata64: b64data };
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BlockService.SendCommand(blockId, inputCmd);
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});
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// resize observer
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const rszObs = new ResizeObserver(() => {
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const oldRows = term.rows;
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const oldCols = term.cols;
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fitAddon.fit();
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if (oldRows !== term.rows || oldCols !== term.cols) {
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BlockService.SendCommand(blockId, {
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command: "controller:input",
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termsize: { rows: term.rows, cols: term.cols },
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});
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}
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});
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rszObs.observe(connectElemRef.current);
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// block subject
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const blockSubject = getBlockSubject(blockId);
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blockSubject.subscribe((data) => {
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// base64 decode
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const decodedData = base64ToArray(data.ptydata);
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term.write(decodedData);
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});
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return () => {
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term.dispose();
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rszObs.disconnect();
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blockSubject.release();
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};
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}, [connectElemRef.current]);
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return (
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<div className="view-term">
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<div key="conntectElem" className="term-connectelem" ref={connectElemRef}></div>
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</div>
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);
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};
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export { TerminalView };
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