@ckeditor/ckeditor5-paste-from-office/src/filters/utils.js

Paste from Office feature for CKEditor 5.

/**
 * @license Copyright (c) 2003-2024, CKSource Holding sp. z o.o. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
 */
/**
 * @module paste-from-office/filters/utils
 */
/**
 * Normalizes CSS length value to 'px'.
 *
 * @internal
 */
export function convertCssLengthToPx(value) {
    const numericValue = parseFloat(value);
    if (value.endsWith('pt')) {
        // 1pt = 1in / 72
        return toPx(numericValue * 96 / 72);
    }
    else if (value.endsWith('pc')) {
        // 1pc = 12pt = 1in / 6.
        return toPx(numericValue * 12 * 96 / 72);
    }
    else if (value.endsWith('in')) {
        // 1in = 2.54cm = 96px
        return toPx(numericValue * 96);
    }
    else if (value.endsWith('cm')) {
        // 1cm = 96px / 2.54
        return toPx(numericValue * 96 / 2.54);
    }
    else if (value.endsWith('mm')) {
        // 1mm = 1cm / 10
        return toPx(numericValue / 10 * 96 / 2.54);
    }
    return value;
}
/**
 * Returns true for value with 'px' unit.
 *
 * @internal
 */
export function isPx(value) {
    return value !== undefined && value.endsWith('px');
}
/**
 * Returns a rounded 'px' value.
 *
 * @internal
 */
export function toPx(value) {
    return value.toFixed(2).replace(/\.?0+$/, '') + 'px';
}