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Stash view and context on event object in action handler #544

merged 2 commits into from Feb 28, 2012


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dgeb commented Feb 28, 2012

Event handlers should be consistent, whether they're set up as standard event listeners for views or they're handlers for action helpers.

By stashing the view and context on the event object, we can pass event as the one and only argument to handlers for action helpers. This meta-data might prove useful if, say, a different view has been targeted than the current one.

For instance, the following action helper:

<a href="#" {{action "editRow" target="parentView"}}>Edit</a>

...could have this handler:

App.ListingView = Ember.View.extend({
  templateName: 'listing',

  editRow: function(event) {
    event.view.set('isEditing', true);

I think this is much easier to remember and use than the order of the parameters currently passed: view, event, context.

This seems good, but can you just pass the event in here?

return target.send(actionName, event);

Now there's no reason to send it wrapped in an object.



dgeb replied Feb 28, 2012

Indeed - that was silly. Thanks for the correction.


dgeb commented Feb 28, 2012

@devinus @ebryn thanks for pointing that out - I just updated the PR.


ebryn commented Feb 28, 2012

Looks good. Thanks!

ebryn added a commit that referenced this pull request Feb 28, 2012

Merge pull request #544 from dgeb/action-handler-event-mods
Stash view and context on event object in action handler

@ebryn ebryn merged commit e9ca2e2 into emberjs:master Feb 28, 2012

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