Can a Ember.Component have both a block and non-block form?

Question

I would like to build an Ember.Component that can be used either in block form, or without a block when some default behavior is desired.

For example, in block form:

{{#my-helper}}   ... {{/my-helper}} 

Or non-block form:

{{my-helper}} 

Where the helper template is somehow able to detect that there is not a block and behave accordingly. For example, it would be nice if there was some way to detect the block:

{{#if hasBlock}}   {{yield}} {{else}}   default output {{/if}} 

For my requirements, I need to have some way to output something only if there's not a block.

Any ideas how to do this?

update:

If you're confused by why my question is the same as the accepted answer it's because Ember happened to adopt new syntax that is exactly what I originally imagined up as desirable. When I first asked this question it turned out there was an undocumented way to do this using {{#if template}} but that has since been deprecated with Ember 2.x and there's new syntax {{#if hasBlock}} which happens to match how I phrased my question.

Answer 1

Inside the Component you'd want to check the value of hasBlock

{{#if hasBlock}}   {{yield}} {{else}}   <p>Default content for inline (non-block) form of the component.</p> {{/if}} 

Here's a JSBin : http://jsbin.com/IWEKere/1/edit

Answer 2

The link to the docs is here: http://emberjs.com/api/classes/Ember.Component.html#property_template

The docs don't explicitly say that the template attribute is used in this way. Since the Ember.Component class inherits from the Ember.View class, it can be inferred that the component template acts like the Ember.View layout template.