mirror of
https://github.com/google-gemini/gemini-cli.git
synced 2026-03-12 15:10:59 -07:00
477 lines
8.7 KiB
TypeScript
477 lines
8.7 KiB
TypeScript
/**
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* @license
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* Copyright 2025 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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import type { IBufferCell, Terminal } from '@xterm/headless';
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export interface AnsiToken {
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text: string;
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bold: boolean;
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italic: boolean;
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underline: boolean;
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dim: boolean;
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inverse: boolean;
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fg: string;
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bg: string;
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}
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export type AnsiLine = AnsiToken[];
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export type AnsiOutput = AnsiLine[];
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const enum Attribute {
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inverse = 1,
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bold = 2,
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italic = 4,
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underline = 8,
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dim = 16,
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}
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export const enum ColorMode {
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DEFAULT = 0,
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PALETTE = 1,
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RGB = 2,
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}
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class Cell {
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private readonly cell: IBufferCell | null;
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private readonly x: number;
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private readonly y: number;
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private readonly cursorX: number;
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private readonly cursorY: number;
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private readonly attributes: number = 0;
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fg = 0;
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bg = 0;
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fgColorMode: ColorMode = ColorMode.DEFAULT;
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bgColorMode: ColorMode = ColorMode.DEFAULT;
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constructor(
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cell: IBufferCell | null,
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x: number,
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y: number,
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cursorX: number,
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cursorY: number,
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) {
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this.cell = cell;
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this.x = x;
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this.y = y;
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this.cursorX = cursorX;
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this.cursorY = cursorY;
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if (!cell) {
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return;
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}
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if (cell.isInverse()) {
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this.attributes += Attribute.inverse;
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}
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if (cell.isBold()) {
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this.attributes += Attribute.bold;
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}
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if (cell.isItalic()) {
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this.attributes += Attribute.italic;
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}
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if (cell.isUnderline()) {
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this.attributes += Attribute.underline;
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}
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if (cell.isDim()) {
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this.attributes += Attribute.dim;
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}
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if (cell.isFgRGB()) {
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this.fgColorMode = ColorMode.RGB;
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} else if (cell.isFgPalette()) {
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this.fgColorMode = ColorMode.PALETTE;
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} else {
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this.fgColorMode = ColorMode.DEFAULT;
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}
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if (cell.isBgRGB()) {
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this.bgColorMode = ColorMode.RGB;
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} else if (cell.isBgPalette()) {
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this.bgColorMode = ColorMode.PALETTE;
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} else {
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this.bgColorMode = ColorMode.DEFAULT;
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}
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if (this.fgColorMode === ColorMode.DEFAULT) {
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this.fg = -1;
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} else {
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this.fg = cell.getFgColor();
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}
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if (this.bgColorMode === ColorMode.DEFAULT) {
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this.bg = -1;
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} else {
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this.bg = cell.getBgColor();
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}
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}
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isCursor(): boolean {
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return this.x === this.cursorX && this.y === this.cursorY;
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}
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getChars(): string {
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return this.cell?.getChars() || ' ';
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}
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isAttribute(attribute: Attribute): boolean {
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return (this.attributes & attribute) !== 0;
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}
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equals(other: Cell): boolean {
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return (
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this.attributes === other.attributes &&
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this.fg === other.fg &&
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this.bg === other.bg &&
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this.fgColorMode === other.fgColorMode &&
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this.bgColorMode === other.bgColorMode &&
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this.isCursor() === other.isCursor()
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);
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}
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}
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export function serializeTerminalToObject(terminal: Terminal): AnsiOutput {
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const buffer = terminal.buffer.active;
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const cursorX = buffer.cursorX;
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const cursorY = buffer.cursorY;
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const defaultFg = '';
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const defaultBg = '';
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const result: AnsiOutput = [];
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for (let y = 0; y < terminal.rows; y++) {
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const line = buffer.getLine(buffer.viewportY + y);
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const currentLine: AnsiLine = [];
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if (!line) {
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result.push(currentLine);
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continue;
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}
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let lastCell = new Cell(null, -1, -1, cursorX, cursorY);
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let currentText = '';
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for (let x = 0; x < terminal.cols; x++) {
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const cellData = line.getCell(x);
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const cell = new Cell(cellData || null, x, y, cursorX, cursorY);
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if (x > 0 && !cell.equals(lastCell)) {
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if (currentText) {
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const token: AnsiToken = {
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text: currentText,
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bold: lastCell.isAttribute(Attribute.bold),
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italic: lastCell.isAttribute(Attribute.italic),
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underline: lastCell.isAttribute(Attribute.underline),
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dim: lastCell.isAttribute(Attribute.dim),
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inverse:
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lastCell.isAttribute(Attribute.inverse) || lastCell.isCursor(),
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fg: convertColorToHex(lastCell.fg, lastCell.fgColorMode, defaultFg),
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bg: convertColorToHex(lastCell.bg, lastCell.bgColorMode, defaultBg),
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};
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currentLine.push(token);
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}
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currentText = '';
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}
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currentText += cell.getChars();
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lastCell = cell;
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}
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if (currentText) {
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const token: AnsiToken = {
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text: currentText,
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bold: lastCell.isAttribute(Attribute.bold),
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italic: lastCell.isAttribute(Attribute.italic),
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underline: lastCell.isAttribute(Attribute.underline),
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dim: lastCell.isAttribute(Attribute.dim),
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inverse: lastCell.isAttribute(Attribute.inverse) || lastCell.isCursor(),
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fg: convertColorToHex(lastCell.fg, lastCell.fgColorMode, defaultFg),
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bg: convertColorToHex(lastCell.bg, lastCell.bgColorMode, defaultBg),
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};
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currentLine.push(token);
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}
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result.push(currentLine);
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}
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return result;
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}
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// ANSI color palette from https://en.wikipedia.org/wiki/ANSI_escape_code#8-bit
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const ANSI_COLORS = [
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'#000000',
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'#800000',
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'#008000',
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'#808000',
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'#000080',
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'#800080',
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'#008080',
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'#c0c0c0',
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'#808080',
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'#ff0000',
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'#00ff00',
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'#ffff00',
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'#0000ff',
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'#ff00ff',
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'#00ffff',
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'#ffffff',
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'#000000',
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'#00005f',
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'#000087',
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'#0000af',
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'#0000d7',
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'#0000ff',
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'#005f00',
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'#005f5f',
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'#005f87',
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'#005faf',
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'#005fd7',
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'#005fff',
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'#008700',
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'#00875f',
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'#008787',
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'#0087af',
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'#0087d7',
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'#0087ff',
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'#00af00',
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'#00af5f',
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'#00af87',
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'#00afaf',
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'#00afd7',
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'#00afff',
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'#00d700',
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'#00d75f',
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'#00d787',
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'#00d7af',
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'#00d7d7',
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'#00d7ff',
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'#00ff00',
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'#00ff5f',
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'#00ff87',
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'#00ffaf',
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'#00ffd7',
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'#00ffff',
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'#5f0000',
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'#5f005f',
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'#5f0087',
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'#5f00af',
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'#5f00d7',
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'#5f00ff',
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'#5f5f00',
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'#5f5f5f',
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'#5f5f87',
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'#5f5faf',
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'#5f5fd7',
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'#5f5fff',
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'#5f8700',
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'#5f875f',
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'#5f8787',
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'#5f87af',
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'#5f87d7',
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'#5f87ff',
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'#5faf00',
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'#5faf5f',
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'#5faf87',
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'#5fafaf',
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'#5fafd7',
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'#5fafff',
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'#5fd700',
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'#5fd75f',
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'#5fd787',
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'#5fd7af',
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'#5fd7d7',
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'#5fd7ff',
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'#5fff00',
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'#5fff5f',
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'#5fff87',
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'#5fffaf',
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'#5fffd7',
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'#5fffff',
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'#870000',
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'#87005f',
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'#870087',
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'#8700af',
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'#8700d7',
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'#8700ff',
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'#875f00',
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'#875f5f',
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'#875f87',
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'#875faf',
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'#875fd7',
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'#875fff',
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'#878700',
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'#87875f',
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'#878787',
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'#8787af',
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'#8787d7',
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'#8787ff',
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'#87af00',
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'#87af5f',
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'#87af87',
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'#87afaf',
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'#87afd7',
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'#87afff',
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'#87d700',
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'#87d75f',
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'#87d787',
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'#87d7af',
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'#87d7d7',
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'#87d7ff',
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'#87ff00',
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'#87ff5f',
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'#87ff87',
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'#87ffaf',
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'#87ffd7',
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'#87ffff',
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'#af0000',
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'#af005f',
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'#af0087',
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'#af00af',
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'#af00d7',
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'#af00ff',
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'#af5f00',
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'#af5f5f',
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'#af5f87',
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'#af5faf',
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'#af5fd7',
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'#af5fff',
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'#af8700',
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'#af875f',
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'#af8787',
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'#af87af',
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'#af87d7',
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'#af87ff',
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'#afaf00',
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'#afaf5f',
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'#afaf87',
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'#afafaf',
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'#afafd7',
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'#afafff',
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'#afd700',
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'#afd75f',
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'#afd787',
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'#afd7af',
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'#afd7d7',
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'#afd7ff',
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'#afff00',
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'#afff5f',
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'#afff87',
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'#afffaf',
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'#afffd7',
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'#afffff',
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'#d70000',
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'#d7005f',
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'#d70087',
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'#d700af',
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'#d700d7',
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'#d700ff',
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'#d75f00',
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'#d75f5f',
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'#d75f87',
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'#d75faf',
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'#d75fd7',
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'#d75fff',
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'#d78700',
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'#d7875f',
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'#d78787',
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'#d787af',
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'#d787d7',
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'#d787ff',
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'#d7af00',
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'#d7af5f',
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'#d7af87',
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'#d7afaf',
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'#d7afd7',
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'#d7afff',
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'#d7d700',
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'#d7d75f',
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'#d7d787',
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'#d7d7af',
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'#d7d7d7',
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'#d7d7ff',
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'#d7ff00',
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'#d7ff5f',
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'#d7ff87',
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'#d7ffaf',
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'#d7ffd7',
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'#d7ffff',
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'#ff0000',
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'#ff005f',
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'#ff0087',
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'#ff00af',
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'#ff00d7',
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'#ff00ff',
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'#ff5f00',
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'#ff5f5f',
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'#ff5f87',
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'#ff5faf',
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'#ff5fd7',
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'#ff5fff',
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'#ff8700',
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'#ff875f',
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'#ff8787',
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'#ff87af',
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'#ff87d7',
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'#ff87ff',
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'#ffaf00',
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'#ffaf5f',
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'#ffaf87',
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'#ffafaf',
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'#ffafd7',
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'#ffafff',
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'#ffd700',
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'#ffd75f',
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'#ffd787',
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'#ffd7af',
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'#ffd7d7',
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'#ffd7ff',
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'#ffff00',
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'#ffff5f',
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'#ffff87',
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'#ffffaf',
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'#ffffd7',
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'#ffffff',
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'#080808',
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'#121212',
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'#1c1c1c',
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'#262626',
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'#303030',
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'#3a3a3a',
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'#444444',
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'#4e4e4e',
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'#585858',
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'#626262',
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'#6c6c6c',
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'#767676',
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'#808080',
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'#8a8a8a',
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'#949494',
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'#9e9e9e',
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'#a8a8a8',
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'#b2b2b2',
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'#bcbcbc',
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'#c6c6c6',
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'#d0d0d0',
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'#dadada',
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'#e4e4e4',
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'#eeeeee',
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];
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export function convertColorToHex(
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color: number,
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colorMode: ColorMode,
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defaultColor: string,
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): string {
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if (colorMode === ColorMode.RGB) {
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const r = (color >> 16) & 255;
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const g = (color >> 8) & 255;
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const b = color & 255;
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return `#${r.toString(16).padStart(2, '0')}${g
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.toString(16)
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.padStart(2, '0')}${b.toString(16).padStart(2, '0')}`;
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}
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if (colorMode === ColorMode.PALETTE) {
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return ANSI_COLORS[color] || defaultColor;
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}
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return defaultColor;
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}
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