Method _nextFile

client/scripts/ui.js:239–245

(nextFile)

    }

    _nextFile(nextFile) {
        if (nextFile) this._filesQueue.push(nextFile);
        if (this._busy) return;
        this._busy = true;
        const file = this._filesQueue.shift();
        this._displayFile(file);
    }

    _dequeueFile() {
        if (!this._filesQueue.length) { // nothing to do