pendalf89\filemanager\widgets\TinyMce::init PHP Method

    public function init()
    {
        parent::init();
        if (empty($this->clientOptions['file_picker_callback'])) {
            $this->clientOptions['file_picker_callback'] = new JsExpression('function(callback, value, meta) {
                    filemanagerTinyMCE(callback, value, meta);
                }');
        }
        if (empty($this->clientOptions['document_base_url'])) {
            $this->clientOptions['document_base_url'] = '';
        }
        if (empty($this->clientOptions['convert_urls'])) {
            $this->clientOptions['convert_urls'] = false;
        }
        $this->tinyMCE = TinyMceWidget::widget(['name' => $this->name, 'model' => $this->model, 'attribute' => $this->attribute, 'value' => $this->value, 'clientOptions' => $this->clientOptions, 'options' => $this->options]);
    }