Martin Wittemann wrote:
>
> Hi,
>
> thats good to hear that the data binding layer helped you implementing
> your qcl. Your proposal sound interesting. Do you think of something
> like:
>
> a.bind(b) === b.observe(a)
>
> Greetings,
> Martin
>
> Am 10.07.2009 um 13:40 schrieb panyasan:
>> And one proposal for the
>> databinding API: it seems to make sense to me to add an observe()
>> method
>> that is the exact opposite of bind() just like in the qcl xml
>> markup. It
>> would be nothing but syntactic sugar but add readability to the
>> qooxdoo
>> code.
>
>
Yes, exactly. There is a technology in XUL that is related : broadcasters
and observers
https://developer.mozilla.org/En/XUL_Tutorial/Broadcasters_and_Observers
although the implementation differs from qcl.
The syntax could be
a.bind("property1",b,"property2") ===
b.observe("property2",a,"property1")
or one could even make the third argument optional if the properties are
equal:
a.bind("enabled",b) === b.observe("enabled",a);
I find it a bit easier to read the code thinking along the lines of objects
which "bind" other objects (active) and objects which "observe" other
objects (passive).
Thanks, C.
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