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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2024-06-21 22:23:07 +02:00
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import { WOS, atoms, globalStore, sendWSCommand, useBlockAtom, useSettingsAtom } from "@/store/global";
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2024-06-12 02:42:10 +02:00
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import * as services from "@/store/services";
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2024-05-28 21:12:28 +02:00
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import { FitAddon } from "@xterm/addon-fit";
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import type { ITheme } from "@xterm/xterm";
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import { Terminal } from "@xterm/xterm";
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import clsx from "clsx";
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import { produce } from "immer";
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import * as jotai from "jotai";
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2024-05-28 21:12:28 +02:00
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import * as React from "react";
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import { IJsonView } from "./ijson";
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2024-06-18 07:38:48 +02:00
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import { TermStickers } from "./termsticker";
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import { TermWrap } from "./termwrap";
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2024-06-14 01:49:25 +02:00
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import "public/xterm.css";
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2024-06-17 19:18:38 +02:00
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import "./term.less";
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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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function handleResize(fitAddon: FitAddon, blockId: string, term: Terminal) {
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if (term == null) {
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return;
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}
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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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const wsCommand: SetBlockTermSizeWSCommand = {
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wscommand: "setblocktermsize",
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blockid: blockId,
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termsize: { rows: term.rows, cols: term.cols },
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};
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sendWSCommand(wsCommand);
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}
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}
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const keyMap = {
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Enter: "\r",
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Backspace: "\x7f",
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Tab: "\t",
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Escape: "\x1b",
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ArrowUp: "\x1b[A",
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ArrowDown: "\x1b[B",
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ArrowRight: "\x1b[C",
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ArrowLeft: "\x1b[D",
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Insert: "\x1b[2~",
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Delete: "\x1b[3~",
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Home: "\x1b[1~",
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End: "\x1b[4~",
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PageUp: "\x1b[5~",
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PageDown: "\x1b[6~",
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};
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function keyboardEventToASCII(event: React.KeyboardEvent<HTMLInputElement>): string {
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// check modifiers
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// if no modifiers are set, just send the key
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if (!event.altKey && !event.ctrlKey && !event.metaKey) {
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if (event.key == null || event.key == "") {
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return "";
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}
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if (keyMap[event.key] != null) {
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return keyMap[event.key];
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}
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if (event.key.length == 1) {
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return event.key;
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} else {
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console.log("not sending keyboard event", event.key, event);
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}
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}
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// if meta or alt is set, there is no ASCII representation
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if (event.metaKey || event.altKey) {
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return "";
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}
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// if ctrl is set, if it is a letter, subtract 64 from the uppercase value to get the ASCII value
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if (event.ctrlKey) {
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if (
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(event.key.length === 1 && event.key >= "A" && event.key <= "Z") ||
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(event.key >= "a" && event.key <= "z")
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) {
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const key = event.key.toUpperCase();
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return String.fromCharCode(key.charCodeAt(0) - 64);
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}
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}
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return "";
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}
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2024-05-29 09:28:25 +02:00
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type InitialLoadDataType = {
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loaded: boolean;
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heldData: Uint8Array[];
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};
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const IJSONConst = {
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tag: "div",
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children: [
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{
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tag: "h1",
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children: ["Hello World"],
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},
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{
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tag: "p",
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children: ["This is a paragraph"],
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},
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],
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};
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function setBlockFocus(blockId: string) {
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let winData = globalStore.get(atoms.waveWindow);
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winData = produce(winData, (draft) => {
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draft.activeblockid = blockId;
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});
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WOS.setObjectValue(winData, globalStore.set, true);
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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<TermWrap>(null);
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const initialLoadRef = React.useRef<InitialLoadDataType>({ loaded: false, heldData: [] });
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const htmlElemFocusRef = React.useRef<HTMLInputElement>(null);
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const [blockData] = WOS.useWaveObjectValue<Block>(WOS.makeORef("block", blockId));
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const isFocusedAtom = useBlockAtom<boolean>(blockId, "isFocused", () => {
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return jotai.atom((get) => {
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const winData = get(atoms.waveWindow);
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return winData.activeblockid === blockId;
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});
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});
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const termSettingsAtom = useSettingsAtom<TerminalConfigType>("term", (settings: SettingsConfigType) => {
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return settings?.term;
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});
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const termSettings = jotai.useAtomValue(termSettingsAtom);
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const isFocused = jotai.useAtomValue(isFocusedAtom);
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React.useEffect(() => {
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const termWrap = new TermWrap(blockId, connectElemRef.current, {
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theme: getThemeFromCSSVars(connectElemRef.current),
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fontSize: termSettings?.fontsize ?? 12,
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fontFamily: termSettings?.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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(window as any).term = termWrap;
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termRef.current = termWrap;
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termWrap.addFocusListener(() => {
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setBlockFocus(blockId);
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});
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const rszObs = new ResizeObserver(() => {
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termWrap.handleResize_debounced();
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});
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rszObs.observe(connectElemRef.current);
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termWrap.initTerminal();
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return () => {
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termWrap.dispose();
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};
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}, []);
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2024-06-06 23:57:37 +02:00
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const handleHtmlKeyDown = (event: React.KeyboardEvent<HTMLInputElement>) => {
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if (event.code === "Escape" && event.metaKey) {
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// reset term:mode
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const metaCmd: BlockSetMetaCommand = { command: "setmeta", meta: { "term:mode": null } };
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services.BlockService.SendCommand(blockId, metaCmd);
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return false;
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}
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const asciiVal = keyboardEventToASCII(event);
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if (asciiVal.length == 0) {
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return false;
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}
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const b64data = btoa(asciiVal);
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const inputCmd: BlockInputCommand = { command: "controller:input", inputdata64: b64data, blockid: blockId };
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services.BlockService.SendCommand(blockId, inputCmd);
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return true;
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};
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let termMode = blockData?.meta?.["term:mode"] ?? "term";
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if (termMode != "term" && termMode != "html") {
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termMode = "term";
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}
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React.useEffect(() => {
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if (isFocused && termMode == "term") {
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termRef.current?.terminal.focus();
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}
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if (isFocused && termMode == "html") {
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htmlElemFocusRef.current?.focus();
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}
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});
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let stickerConfig = {
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charWidth: 8,
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charHeight: 16,
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rows: termRef.current?.terminal.rows ?? 24,
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cols: termRef.current?.terminal.cols ?? 80,
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blockId: blockId,
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};
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return (
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<div className={clsx("view-term", "term-mode-" + termMode, isFocused ? "is-focused" : null)}>
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<TermStickers config={stickerConfig} />
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<div key="conntectElem" className="term-connectelem" ref={connectElemRef}></div>
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<div
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key="htmlElem"
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className="term-htmlelem"
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onClick={() => {
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if (htmlElemFocusRef.current != null) {
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htmlElemFocusRef.current.focus();
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}
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setBlockFocus(blockId);
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}}
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>
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<div key="htmlElemFocus" className="term-htmlelem-focus">
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<input
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type="text"
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value={""}
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ref={htmlElemFocusRef}
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onKeyDown={handleHtmlKeyDown}
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onChange={() => {}}
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/>
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</div>
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<div key="htmlElemContent" className="term-htmlelem-content">
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<IJsonView rootNode={IJSONConst} />
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</div>
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</div>
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</div>
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);
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};
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export { TerminalView };
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