Daniel ImmsandCursor
17ad33dc3d
Fixes https://github.com/xtermjs/xterm.js/issues/5896 TypeScript path mappings for common/*, browser/*, and headless/* were not rewritten in emitted JavaScript, which forced webpack resolve aliases and NODE_PATH workarounds so runtime could resolve modules. That added build complexity and broke tooling such as ESLint import/no-cycle. Changes: - Convert ~750 imports across src/, addons/, and test/ to relative paths - Remove common/browser/headless paths and src catch-all mappings from tsconfigs (keep @xterm/addon-* demo and addon typings paths) - Remove webpack resolve.alias for common, browser, headless, and vs - Drop NODE_PATH from unit tests, benchmarks, and VS Code launch config - Fix addon-image IIPImageStorage to import ./Types after removing catch-all * Verified: npm run build, esbuild, package, package-headless Co-authored-by: Cursor <cursoragent@cursor.com>
96 lines
2.9 KiB
TypeScript
96 lines
2.9 KiB
TypeScript
/**
|
|
* Copyright (c) 2019 The xterm.js authors. All rights reserved.
|
|
* @license MIT
|
|
*/
|
|
|
|
import { IDimensions, IRenderDimensions } from './Types';
|
|
|
|
export function throwIfFalsy<T>(value: T | undefined | null): T {
|
|
if (!value) {
|
|
throw new Error('value must not be falsy');
|
|
}
|
|
return value;
|
|
}
|
|
|
|
export function isPowerlineGlyph(codepoint: number): boolean {
|
|
// Only return true for Powerline symbols which require
|
|
// different padding and should be excluded from minimum contrast
|
|
// ratio standards
|
|
return 0xE0A4 <= codepoint && codepoint <= 0xE0D6;
|
|
}
|
|
|
|
export function isRestrictedPowerlineGlyph(codepoint: number): boolean {
|
|
return 0xE0B0 <= codepoint && codepoint <= 0xE0B7;
|
|
}
|
|
|
|
function isNerdFontGlyph(codepoint: number): boolean {
|
|
return 0xE000 <= codepoint && codepoint <= 0xF8FF;
|
|
}
|
|
|
|
function isBoxOrBlockGlyph(codepoint: number): boolean {
|
|
return 0x2500 <= codepoint && codepoint <= 0x259F;
|
|
}
|
|
|
|
export function isEmoji(codepoint: number): boolean {
|
|
return (
|
|
codepoint >= 0x1F600 && codepoint <= 0x1F64F || // Emoticons
|
|
codepoint >= 0x1F300 && codepoint <= 0x1F5FF || // Misc Symbols and Pictographs
|
|
codepoint >= 0x1F680 && codepoint <= 0x1F6FF || // Transport and Map
|
|
codepoint >= 0x2600 && codepoint <= 0x26FF || // Misc symbols
|
|
codepoint >= 0x2700 && codepoint <= 0x27BF || // Dingbats
|
|
codepoint >= 0xFE00 && codepoint <= 0xFE0F || // Variation Selectors
|
|
codepoint >= 0x1F900 && codepoint <= 0x1F9FF || // Supplemental Symbols and Pictographs
|
|
codepoint >= 0x1F1E6 && codepoint <= 0x1F1FF
|
|
);
|
|
}
|
|
|
|
export function allowRescaling(codepoint: number | undefined, width: number, glyphSizeX: number, deviceCellWidth: number): boolean {
|
|
return (
|
|
// Is single cell width
|
|
width === 1 &&
|
|
// Glyph exceeds cell bounds, add 50% to avoid hurting readability by rescaling glyphs that
|
|
// barely overlap
|
|
glyphSizeX > Math.ceil(deviceCellWidth * 1.5) &&
|
|
// Never rescale ascii
|
|
codepoint !== undefined && codepoint > 0xFF &&
|
|
// Never rescale emoji
|
|
!isEmoji(codepoint) &&
|
|
// Never rescale powerline or nerd fonts
|
|
!isPowerlineGlyph(codepoint) && !isNerdFontGlyph(codepoint)
|
|
);
|
|
}
|
|
|
|
export function treatGlyphAsBackgroundColor(codepoint: number): boolean {
|
|
return isPowerlineGlyph(codepoint) || isBoxOrBlockGlyph(codepoint);
|
|
}
|
|
|
|
export function createRenderDimensions(): IRenderDimensions {
|
|
return {
|
|
css: {
|
|
canvas: createDimension(),
|
|
cell: createDimension()
|
|
},
|
|
device: {
|
|
canvas: createDimension(),
|
|
cell: createDimension(),
|
|
char: {
|
|
width: 0,
|
|
height: 0,
|
|
left: 0,
|
|
top: 0
|
|
}
|
|
}
|
|
};
|
|
}
|
|
|
|
function createDimension(): IDimensions {
|
|
return {
|
|
width: 0,
|
|
height: 0
|
|
};
|
|
}
|
|
|
|
export function computeNextVariantOffset(cellWidth: number, lineWidth: number, currentOffset: number = 0): number {
|
|
return (cellWidth - (Math.round(lineWidth) * 2 - currentOffset)) % (Math.round(lineWidth) * 2);
|
|
}
|