Thanks for the mentioning the Ember issue Chris :) I've filed it here: https://github.com/tildeio/htmlbars/issues/288
On Thu, Feb 5, 2015 at 7:13 AM, Chris Bateman <chrisb...@gmail.com> wrote: > As an example I made a simple input-based Custom Element which prevents > alphabetic input, and dropped it in an very simple Ember app. > > Here's the version with a subclassed <input>: > http://jsbin.com/mevemu/1/edit?html,output > > And the version with an <input> nested in a custom > element:http://jsbin.com/hepuvif/1/edit?html,output. The custom element adds > an input if one wasn't provided in the markup. > > Click the "Show" button to inject the CE. The CE is registered at the top, > and the template (where it's included) is at the bottom. > > Note that the 2nd version isn't completely functional because Ember isn't > expecting to update a value based on an attribute - but this is something > that Ember can solve (they've stated intent to support Web Components). > > > So - it was extra code to map the input's value to the custom element (and I > didn't do a very robust job of it) - but I'll let you draw your own > conclusions. In my opinion - it's definitely not as ideal as the subclass - > but maybe it's not prohibitive either. > > > ** Bonus issue - I didn't know this, but Chrome doesn't upgrade when you add > the is= attribute to an element that's already been created. Ember builds up > its templates into document fragments - so the input failed to upgrade in > Chrome. This doesn't happen with the polyfill, however, so I got around the > issue by forcing the polyfill to override the native > document.registerElement. > > > Chris > > > > On Wed, Feb 4, 2015 at 1:15 PM, Ryosuke Niwa <rn...@apple.com> wrote: >> >> >> > On Feb 4, 2015, at 11:11 AM, Chris Bateman <chrisb...@gmail.com> wrote: >> > >> > Ugh, I forgot about that. Without subclassing - terseness is a very >> > minor drawback, but remapping the interface is a big pain. >> >> Could you give us a concrete use case in which remapping the interface is >> necessary or hard/impossible to do? >> >> - R. Niwa >> >> >
