mirror of
https://github.com/bitburner-official/bitburner-src.git
synced 2026-04-20 00:04:22 +02:00
refactor temrinal input for more performace
This commit is contained in:
Olivier Gagnon
@@ -0,0 +1,362 @@
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import React, { useState, useEffect, useRef } from "react";
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import Typography from "@material-ui/core/Typography";
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import { makeStyles, createStyles, Theme } from "@material-ui/core/styles";
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import TextField from "@material-ui/core/TextField";
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import { KEY } from "../../../utils/helpers/keyCodes";
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import { ITerminal } from "../ITerminal";
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import { IEngine } from "../../IEngine";
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import { IPlayer } from "../../PersonObjects/IPlayer";
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import { determineAllPossibilitiesForTabCompletion } from "../determineAllPossibilitiesForTabCompletion";
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import { tabCompletion } from "../tabCompletion";
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import { FconfSettings } from "../../Fconf/FconfSettings";
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const useStyles = makeStyles((theme: Theme) =>
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createStyles({
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textfield: {
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margin: theme.spacing(0),
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width: "100%",
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},
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input: {
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backgroundColor: "#000",
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},
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nopadding: {
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padding: theme.spacing(0),
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},
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preformatted: {
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whiteSpace: "pre-wrap",
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margin: theme.spacing(0),
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},
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list: {
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padding: theme.spacing(0),
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height: "100%",
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},
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}),
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);
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interface IProps {
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terminal: ITerminal;
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engine: IEngine;
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player: IPlayer;
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}
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export function TerminalInput({ terminal, engine, player }: IProps): React.ReactElement {
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const terminalInput = useRef<HTMLInputElement>(null);
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const [value, setValue] = useState("");
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const [possibilities, setPossibilities] = useState<string[]>([]);
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const classes = useStyles();
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function handleValueChange(event: React.ChangeEvent<HTMLInputElement>): void {
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setValue(event.target.value);
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setPossibilities([]);
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}
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function modifyInput(mod: string): void {
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const ref = terminalInput.current;
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if (!ref) return;
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const inputLength = value.length;
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const start = ref.selectionStart;
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if (start === null) return;
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const inputText = ref.value;
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switch (mod.toLowerCase()) {
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case "backspace":
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if (start > 0 && start <= inputLength + 1) {
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setValue(inputText.substr(0, start - 1) + inputText.substr(start));
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}
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break;
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case "deletewordbefore": // Delete rest of word before the cursor
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for (let delStart = start - 1; delStart > 0; --delStart) {
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if (inputText.charAt(delStart) === " ") {
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setValue(inputText.substr(0, delStart) + inputText.substr(start));
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return;
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}
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}
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break;
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case "deletewordafter": // Delete rest of word after the cursor
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for (let delStart = start + 1; delStart <= value.length + 1; ++delStart) {
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if (inputText.charAt(delStart) === " ") {
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setValue(inputText.substr(0, start) + inputText.substr(delStart));
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return;
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}
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}
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break;
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case "clearafter": // Deletes everything after cursor
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break;
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case "clearbefore:": // Deleetes everything before cursor
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break;
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}
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}
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function moveTextCursor(loc: string): void {
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const ref = terminalInput.current;
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if (!ref) return;
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const inputLength = value.length;
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const start = ref.selectionStart;
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if (start === null) return;
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switch (loc.toLowerCase()) {
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case "home":
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ref.setSelectionRange(0, 0);
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break;
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case "end":
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ref.setSelectionRange(inputLength, inputLength);
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break;
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case "prevchar":
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if (start > 0) {
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ref.setSelectionRange(start - 1, start - 1);
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}
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break;
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case "prevword":
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for (let i = start - 2; i >= 0; --i) {
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if (ref.value.charAt(i) === " ") {
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ref.setSelectionRange(i + 1, i + 1);
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return;
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}
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}
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ref.setSelectionRange(0, 0);
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break;
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case "nextchar":
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ref.setSelectionRange(start + 1, start + 1);
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break;
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case "nextword":
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for (let i = start + 1; i <= inputLength; ++i) {
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if (ref.value.charAt(i) === " ") {
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ref.setSelectionRange(i, i);
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return;
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}
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}
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ref.setSelectionRange(inputLength, inputLength);
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break;
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default:
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console.warn("Invalid loc argument in Terminal.moveTextCursor()");
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break;
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}
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}
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// Catch all key inputs and redirect them to the terminal.
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useEffect(() => {
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function keyDown(this: Document, event: KeyboardEvent): void {
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if (terminal.contractOpen) return;
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const ref = terminalInput.current;
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if (ref) ref.focus();
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// Cancel action
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if (event.keyCode === KEY.C && event.ctrlKey) {
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terminal.finishAction(player, true);
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}
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}
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document.addEventListener("keydown", keyDown);
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return () => document.removeEventListener("keydown", keyDown);
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});
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function onKeyDown(event: React.KeyboardEvent<HTMLInputElement>): void {
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// Run command.
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if (event.keyCode === KEY.ENTER && value !== "") {
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event.preventDefault();
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terminal.print(`[${player.getCurrentServer().hostname} ~${terminal.cwd()}]> ${value}`);
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terminal.executeCommands(engine, player, value);
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setValue("");
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return;
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}
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// Autocomplete
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if (event.keyCode === KEY.TAB && value !== "") {
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event.preventDefault();
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let copy = value;
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const semiColonIndex = copy.lastIndexOf(";");
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if (semiColonIndex !== -1) {
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copy = copy.slice(semiColonIndex + 1);
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}
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copy = copy.trim();
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copy = copy.replace(/\s\s+/g, " ");
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const commandArray = copy.split(" ");
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let index = commandArray.length - 2;
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if (index < -1) {
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index = 0;
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}
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const allPos = determineAllPossibilitiesForTabCompletion(player, copy, index, terminal.cwd());
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if (allPos.length == 0) {
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return;
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}
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let arg = "";
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let command = "";
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if (commandArray.length == 0) {
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return;
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}
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if (commandArray.length == 1) {
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command = commandArray[0];
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} else if (commandArray.length == 2) {
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command = commandArray[0];
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arg = commandArray[1];
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} else if (commandArray.length == 3) {
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command = commandArray[0] + " " + commandArray[1];
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arg = commandArray[2];
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} else {
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arg = commandArray.pop() + "";
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command = commandArray.join(" ");
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}
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const newValue = tabCompletion(command, arg, allPos, value);
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if (typeof newValue === "string" && newValue !== "") {
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setValue(newValue);
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}
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if (Array.isArray(newValue)) {
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setPossibilities(newValue);
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}
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}
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// Clear screen.
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if (event.keyCode === KEY.L && event.ctrlKey) {
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event.preventDefault();
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terminal.clear();
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}
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// Select previous command.
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if (
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event.keyCode === KEY.UPARROW ||
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(FconfSettings.ENABLE_BASH_HOTKEYS && event.keyCode === KEY.P && event.ctrlKey)
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) {
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if (FconfSettings.ENABLE_BASH_HOTKEYS) {
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event.preventDefault();
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}
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const i = terminal.commandHistoryIndex;
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const len = terminal.commandHistory.length;
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if (len == 0) {
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return;
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}
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if (i < 0 || i > len) {
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terminal.commandHistoryIndex = len;
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}
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if (i != 0) {
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--terminal.commandHistoryIndex;
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}
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const prevCommand = terminal.commandHistory[terminal.commandHistoryIndex];
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setValue(prevCommand);
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const ref = terminalInput.current;
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if (ref) {
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setTimeout(function () {
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ref.selectionStart = ref.selectionEnd = 10000;
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}, 10);
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}
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}
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// Select next command
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if (
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event.keyCode === KEY.DOWNARROW ||
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(FconfSettings.ENABLE_BASH_HOTKEYS && event.keyCode === KEY.M && event.ctrlKey)
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) {
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if (FconfSettings.ENABLE_BASH_HOTKEYS) {
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event.preventDefault();
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}
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const i = terminal.commandHistoryIndex;
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const len = terminal.commandHistory.length;
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if (len == 0) {
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return;
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}
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if (i < 0 || i > len) {
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terminal.commandHistoryIndex = len;
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}
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// Latest command, put nothing
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if (i == len || i == len - 1) {
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terminal.commandHistoryIndex = len;
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setValue("");
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} else {
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++terminal.commandHistoryIndex;
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const prevCommand = terminal.commandHistory[terminal.commandHistoryIndex];
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setValue(prevCommand);
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}
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}
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// Extra Bash Emulation Hotkeys, must be enabled through .fconf
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if (FconfSettings.ENABLE_BASH_HOTKEYS) {
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if (event.keyCode === KEY.A && event.ctrlKey) {
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event.preventDefault();
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moveTextCursor("home");
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}
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if (event.keyCode === KEY.E && event.ctrlKey) {
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event.preventDefault();
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moveTextCursor("end");
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}
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if (event.keyCode === KEY.B && event.ctrlKey) {
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event.preventDefault();
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moveTextCursor("prevchar");
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}
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if (event.keyCode === KEY.B && event.altKey) {
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event.preventDefault();
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moveTextCursor("prevword");
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}
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if (event.keyCode === KEY.F && event.ctrlKey) {
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event.preventDefault();
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moveTextCursor("nextchar");
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}
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if (event.keyCode === KEY.F && event.altKey) {
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event.preventDefault();
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moveTextCursor("nextword");
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}
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if ((event.keyCode === KEY.H || event.keyCode === KEY.D) && event.ctrlKey) {
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modifyInput("backspace");
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event.preventDefault();
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}
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// TODO AFTER THIS:
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// alt + d deletes word after cursor
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// ^w deletes word before cursor
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// ^k clears line after cursor
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// ^u clears line before cursor
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}
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}
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return (
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<>
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{possibilities.length > 0 && (
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<>
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<Typography classes={{ root: classes.preformatted }} color={"primary"} paragraph={false}>
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Possible autocomplete candidate:
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</Typography>
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<Typography classes={{ root: classes.preformatted }} color={"primary"} paragraph={false}>
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{possibilities.join(" ")}
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</Typography>
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</>
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)}
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<TextField
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color={terminal.action === null ? "primary" : "secondary"}
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autoFocus
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disabled={terminal.action !== null}
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autoComplete="off"
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classes={{ root: classes.textfield }}
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value={value}
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onChange={handleValueChange}
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inputRef={terminalInput}
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InputProps={{
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// for players to hook in
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id: "terminal-input",
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className: classes.input,
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startAdornment: (
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<>
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<Typography color={terminal.action === null ? "primary" : "secondary"}>
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[{player.getCurrentServer().hostname} ~{terminal.cwd()}]>
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</Typography>
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</>
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),
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spellCheck: false,
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onKeyDown: onKeyDown,
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}}
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></TextField>
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</>
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);
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}
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