Method _detectScriptFile

packages/alphatab/src/Environment.ts:225–258

* @target web

()

     * @target web
     */
    private static _detectScriptFile(): string | null {
        // custom global constant
        if (!Environment.isRunningInWorker && Environment.globalThis.ALPHATAB_ROOT) {
            let scriptFile = Environment.globalThis.ALPHATAB_ROOT;
            scriptFile = Environment.ensureFullUrl(scriptFile);
            scriptFile = Environment._appendScriptName(scriptFile);
            return scriptFile;
        }

        // browser include as ES6 import
        // <script type="module">
        // import * as alphaTab from 'dist/alphaTab.js';
        try {
            const importUrl = import.meta.url;
            // avoid using file:// urls in case of
            // bundlers like webpack
            if (importUrl && importUrl.indexOf('file://') === -1) {
                return importUrl;
            }
        } catch {
            // ignore potential errors
        }

        // normal browser include as <script>
        if (
            'document' in Environment.globalThis &&
            document.currentScript &&
            document.currentScript instanceof HTMLScriptElement
        ) {
            return document.currentScript.src;
        }

        return null;
    }

    /**
     * @target web