I'm creating a simple Todo App as I explore EmberJS v2.14. I want to build in a manual inline editing feature--the user will double-click on a todo line item text span, to open up a input field. The user will then edit the todo, which will be double bound to a backing object. And then when focus is lost, the app will re-close the input field back to the newly edited text.

The following fragment of code is inside an `{{each}}` block helper, and it *almost* works.

```
{{#unless todo.isOpenForEdit}}
   <span {{action 'openForEditing' todo on='doubleClick'}}>{{todo.text}}</span>
{{else}}
  {{input type="text" value=todo.text action='closeForEditing' on='focus-out'}}
{{/unless}}

```

**Working Pieces**

* I can double click to go to editing mode (i.e. `openForEditing()` is correctly called with the write argument.)
* the action handler `closeForEditing()` is correctly called when focus is lost from the input field.

**Pieces Not Working**

* I don't know how to pass the todo object model as an argument, so
that the `closeForEditing()` handler can do the appropriate work of setting
`isOpenForEdit` back to false.

--

**Q)** How do I pass an argument to an action handler while working with the input helper?

**Q)** Is there a different approach I can take, to achieve my goal?