justlyrics/dist/utils.js

A comprehensive TypeScript library for parsing, converting, and processing various lyric formats including LRC, ALRC, YRC, QRC, and more

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.waitFor = waitFor;
exports.autoTrimContainer = autoTrimContainer;
exports.isCJKChar = isCJKChar;
function waitFor(selector, timeout = 5000) {
    return new Promise((resolve, reject) => {
        const el = document.querySelector(selector);
        if (el)
            return resolve(el);
        const observer = new MutationObserver((_, obs) => {
            const found = document.querySelector(selector);
            if (found) {
                obs.disconnect();
                resolve(found);
            }
        });
        observer.observe(document.body, { childList: true, subtree: true });
        setTimeout(() => {
            observer.disconnect();
            reject(new Error(`Timed out waiting for ${selector}`));
        }, timeout);
    });
}
function autoTrimContainer(container, judgement) {
    while (container.firstChild &&
        judgement(container.firstChild)) {
        container.removeChild(container.firstChild);
    }
    while (container.lastChild &&
        judgement(container.lastChild)) {
        container.removeChild(container.lastChild);
    }
}
function isCJKChar(char) {
    if (char.length !== 1) {
        for (const c of char) {
            if (isCJKChar(c))
                return true;
        }
        return false;
    }
    const code = char.codePointAt(0); // Using `codePointAt` to handle surrogate pairs
    // Check if the character is in any of the CJK ranges
    const resp = (code >= 0x4e00 && code <= 0x9fff) || // Basic CJK Unified Ideographs
        (code >= 0x3400 && code <= 0x4dbf) || // CJK Unified Ideographs Extension A
        (code >= 0x20000 && code <= 0x2a6df) || // CJK Unified Ideographs Extension B
        (code >= 0x2a700 && code <= 0x2b73f) || // CJK Unified Ideographs Extension C
        (code >= 0x2b740 && code <= 0x2b81f) || // CJK Unified Ideographs Extension D
        (code >= 0x2b820 && code <= 0x2ceaf) || // CJK Unified Ideographs Extension E
        (code >= 0x2ceb0 && code <= 0x2ebef) || // CJK Unified Ideographs Extension F
        (code >= 0x2f800 && code <= 0x2fa1f) || // CJK Compatibility Ideographs Supplement
        (code >= 0x3040 && code <= 0x309f) || // Hiragana
        (code >= 0x30a0 && code <= 0x30ff) || // Katakana
        (code >= 0xac00 && code <= 0xd7af); // Hangul Syllables
    // console.debug(`isCJKChar(${char}) = ${resp}`)
    return resp;
}