I agree it is very impressive, thanks Rafael for a very quick response.
@Jan - I don't know a way to do it, but, once again, maybe Rafael can
surprise us!
On Wednesday, January 29, 2014 6:44:14 PM UTC+1, Jan Miksovsky wrote:
>
> Marcin/Rafeal: This is really cool! I hadn't realized you could take
> advantage of Polymer bindings outside of a custom element definition, and
> it opens up some intriguing new possibilities. It'd be nice if HTML
> designers could learn and use just enough binding syntax in a document's
> markup to be able to wire together custom elements.
>
> I was wondering if it's currently possible to do this entirely in markup.
> If all someone's interested in doing is just binding together two
> properties on two different elements, it'd be nice to be able to specify
> that an empty object (that is, { } ) should be used as the model without
> requiring script:
>
> <template id="tmpl" bind model>
> <x-element value="{{foo}}"></x-element>
> <y-element value="{{foo}}"</y-element>
> </template>
>
> Is something like this already possible today?
>
> On Tuesday, January 28, 2014 4:26:30 AM UTC-8, Rafael Weinstein wrote:
>>
>> PolymerExpressions is enabling named scopes. This is setup for you
>> automatically within Polymer elements. In the main document, you'll need to
>> set it up yourself. Something like:
>>
>> http://jsfiddle.net/E63ut/
>>
>>
>> On Tue, Jan 28, 2014 at 3:27 AM, Marcin Warpechowski <[email protected]>wrote:
>>
>>> Sorry, I swapped the links to the "item in items" JSFiddles. Correct
>>> links:
>>>
>>> body (does not work):
>>> http://jsfiddle.net/warpech/u59pk/3/<http://www.google.com/url?q=http%3A%2F%2Fjsfiddle.net%2Fwarpech%2Fu59pk%2F3%2F&sa=D&sntz=1&usg=AFQjCNHW06fKIBg91VyfiiAZVA9yjkCTVw>
>>>
>>>
>>>
>>>
>>> Polymer Element (works):
>>> http://jsfiddle.net/warpech/u59pk/6/<http://www.google.com/url?q=http%3A%2F%2Fjsfiddle.net%2Fwarpech%2Fu59pk%2F6%2F&sa=D&sntz=1&usg=AFQjCNEvfrDQQx_J9alE0AOU4wttqAISYg>
>>>
>>>
>>>
>>>
>>>
>>> On Tuesday, January 28, 2014 12:22:30 PM UTC+1, Marcin Warpechowski
>>> wrote:
>>>>
>>>> The following syntax:
>>>>
>>>> <template repeat="{{items}}">
>>>>
>>>>
>>>> works both in Polymer Elements and in the main document body (see how
>>>> it works: http://jsfiddle.net/warpech/u59pk/2/ )
>>>>
>>>> However, the following syntax ("named scope"):
>>>>
>>>> <template repeat="{{item in items}}">
>>>>
>>>>
>>>> works only within a Polymer Element template (Polymer Element:
>>>> http://jsfiddle.net/warpech/u59pk/3/ , body:
>>>> http://jsfiddle.net/warpech/u59pk/6/ )
>>>>
>>>> I assume this is because the expression "item in items" is only parsed
>>>> by Polymer Expressions, but it took me some time to investigate.
>>>>
>>>> I have few questions:
>>>> 1. Is the "item in items" parsing done by https://github.com/Polymer/
>>>> polymer-expressions/blob/master/third_party/esprima/esprima.js ? I
>>>> suppose so
>>>> 2. I there a way to make this expression parse outside of a
>>>> <polymer-element>? I see a big benefit from using named scopes in my
>>>> templates but I prefer not to wrap my whole app in a <polymer-element>
>>>> 3. Template Binding page suggests "item in items" would be available in
>>>> <template>, also outside <polymer-element> (
>>>> http://www.polymer-project.org/platform/template.html ). And I would
>>>> love it to be so. However, on a page where Polymer Expressions (
>>>> http://www.polymer-project.org/platform/template.html ) are described,
>>>> it is more clear that it only runs within <polymer-element>. Perhaps some
>>>> clarification should be added there.
>>>>
>>>> Thanks for your great work!
>>>>
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>>
>>
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