How to get the parent template instance (of the current template)

Question

Is there a clean way to get the parent template of the current template? Nothing is officially documented in Meteor's API. I'm talking about the Blaze.TemplateInstance, not the context (i.e. not Template.parentData).

Answer 1

In the end, I've extended the template instances similarly with Meteor's parentData, like this:

/**
 * Get the parent template instance
 * @param {Number} [levels] How many levels to go up. Default is 1
 * @returns {Blaze.TemplateInstance}
 */

Blaze.TemplateInstance.prototype.parentTemplate = function (levels) {
    var view = this.view;
    if (typeof levels === "undefined") {
        levels = 1;
    }
    while (view) {
        if (view.name.substring(0, 9) === "Template." && !(levels--)) {
            return view.templateInstance();
        }
        view = view.parentView;
    }
};

Example usage: someTemplate.parentTemplate() to get the immediate parent