@taiga-ui/core/esm2022/utils/miscellaneous/font-scaling.mjs

Core library for creating Angular components and applications using Taiga UI

import { DOCUMENT } from '@angular/common';
import { inject, InjectionToken, signal, } from '@angular/core';
import { TUI_FONT_SIZE_HANDLER } from '@taiga-ui/cdk/directives/font-size';
import { tuiClamp } from '@taiga-ui/cdk/utils/math';
import { tuiPx } from '@taiga-ui/cdk/utils/miscellaneous';
export const TUI_FONT_OFFSET = new InjectionToken(ngDevMode ? 'TUI_FONT_OFFSET' : '', { factory: () => signal(0) });
export function tuiEnableFontScaling() {
    return {
        provide: TUI_FONT_SIZE_HANDLER,
        useFactory: () => {
            const offset = inject(TUI_FONT_OFFSET);
            const { documentElement } = inject(DOCUMENT);
            return (size) => {
                const current = tuiClamp(size, 17, 28) - 17;
                offset.set(current);
                return documentElement.style.setProperty('--tui-font-offset', tuiPx(current));
            };
        },
    };
}
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