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Validate colors

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Bruno Ribeito
2018-02-19 22:54:09 +00:00
parent 93e5996422
commit f8f1355155
1 changed files with 51 additions and 21 deletions
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src/renderer/ColorManager.ts
+51 -21
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@@ -66,6 +66,8 @@ function toPaddedHex(c: number): string {
* Manages the source of truth for a terminal's colors.
*/
export class ColorManager implements IColorManager {
private VALID_NON_NAMED_COLORS = new RegExp('^(#[0-9a-f]{3}|#(?:[0-9a-f]{2}){2,4}|(rgb|hsl)a?\((-?\d+%?[,\s]+){2,3}\s*[\d\.]+%?\))$', 'g');
public colors: IColorSet;
constructor() {
@@ -85,26 +87,54 @@ export class ColorManager implements IColorManager {
* colors will be used where colors are not defined.
*/
public setTheme(theme: ITheme): void {
this.colors.foreground = theme.foreground || DEFAULT_FOREGROUND;
this.colors.background = theme.background || DEFAULT_BACKGROUND;
this.colors.cursor = theme.cursor || DEFAULT_CURSOR;
this.colors.cursorAccent = theme.cursorAccent || DEFAULT_CURSOR_ACCENT;
this.colors.selection = theme.selection || DEFAULT_SELECTION;
this.colors.ansi[0] = theme.black || DEFAULT_ANSI_COLORS[0];
this.colors.ansi[1] = theme.red || DEFAULT_ANSI_COLORS[1];
this.colors.ansi[2] = theme.green || DEFAULT_ANSI_COLORS[2];
this.colors.ansi[3] = theme.yellow || DEFAULT_ANSI_COLORS[3];
this.colors.ansi[4] = theme.blue || DEFAULT_ANSI_COLORS[4];
this.colors.ansi[5] = theme.magenta || DEFAULT_ANSI_COLORS[5];
this.colors.ansi[6] = theme.cyan || DEFAULT_ANSI_COLORS[6];
this.colors.ansi[7] = theme.white || DEFAULT_ANSI_COLORS[7];
this.colors.ansi[8] = theme.brightBlack || DEFAULT_ANSI_COLORS[8];
this.colors.ansi[9] = theme.brightRed || DEFAULT_ANSI_COLORS[9];
this.colors.ansi[10] = theme.brightGreen || DEFAULT_ANSI_COLORS[10];
this.colors.ansi[11] = theme.brightYellow || DEFAULT_ANSI_COLORS[11];
this.colors.ansi[12] = theme.brightBlue || DEFAULT_ANSI_COLORS[12];
this.colors.ansi[13] = theme.brightMagenta || DEFAULT_ANSI_COLORS[13];
this.colors.ansi[14] = theme.brightCyan || DEFAULT_ANSI_COLORS[14];
this.colors.ansi[15] = theme.brightWhite || DEFAULT_ANSI_COLORS[15];
this.colors.foreground = this._validateColor(theme.foreground, DEFAULT_FOREGROUND);
this.colors.background = this._validateColor(theme.background, DEFAULT_BACKGROUND);
this.colors.cursor = this._validateColor(theme.cursor, DEFAULT_CURSOR);
this.colors.cursorAccent = this._validateColor(theme.cursorAccent, DEFAULT_CURSOR_ACCENT);
this.colors.selection = this._validateColor(theme.selection, DEFAULT_SELECTION);
this.colors.ansi[0] = this._validateColor(theme.black, DEFAULT_ANSI_COLORS[0]);
this.colors.ansi[1] = this._validateColor(theme.red, DEFAULT_ANSI_COLORS[1]);
this.colors.ansi[2] = this._validateColor(theme.green, DEFAULT_ANSI_COLORS[2]);
this.colors.ansi[3] = this._validateColor(theme.yellow, DEFAULT_ANSI_COLORS[3]);
this.colors.ansi[4] = this._validateColor(theme.blue, DEFAULT_ANSI_COLORS[4]);
this.colors.ansi[5] = this._validateColor(theme.magenta, DEFAULT_ANSI_COLORS[5]);
this.colors.ansi[6] = this._validateColor(theme.cyan, DEFAULT_ANSI_COLORS[6]);
this.colors.ansi[7] = this._validateColor(theme.white, DEFAULT_ANSI_COLORS[7]);
this.colors.ansi[8] = this._validateColor(theme.brightBlack, DEFAULT_ANSI_COLORS[8]);
this.colors.ansi[9] = this._validateColor(theme.brightRed, DEFAULT_ANSI_COLORS[9]);
this.colors.ansi[10] = this._validateColor(theme.brightGreen, DEFAULT_ANSI_COLORS[10]);
this.colors.ansi[11] = this._validateColor(theme.brightYellow, DEFAULT_ANSI_COLORS[11]);
this.colors.ansi[12] = this._validateColor(theme.brightBlue, DEFAULT_ANSI_COLORS[12]);
this.colors.ansi[13] = this._validateColor(theme.brightMagenta, DEFAULT_ANSI_COLORS[13]);
this.colors.ansi[14] = this._validateColor(theme.brightCyan, DEFAULT_ANSI_COLORS[14]);
this.colors.ansi[15] = this._validateColor(theme.brightWhite, DEFAULT_ANSI_COLORS[15]);
}
private _validateColor(color: string, fallback: string): string {
if (!color) {
return fallback;
}
const isColorValid = this.VALID_NON_NAMED_COLORS.exec(color) || this._validateNamedColor(color);
if (!isColorValid) {
console.warn(`Color: ${color} is invalid using fallback ${fallback}`);
}
return isColorValid ? color : fallback;
}
private _validateNamedColor(color: string): boolean {
const litmus = 'red';
const d = document.createElement('div');
d.style.color = litmus;
d.style.color = color;
// Element's style.color will be reverted to litmus or set to '' if an invalid color is given
if (color !== litmus && (d.style.color === litmus || d.style.color === '')) {
return false;
}
return true;
}
}