What about something like (and this is very rough, but hopefully
conveys the general idea):
jQuery.fn.hasDescendant = function(descendant) {
jQuery.data(this.get(0), "has_d", "found");
descendant = jQuery(descendant);
while (descendant.parent().length) {
if (jQuery.data(descendant.parent().get(0), "has_d") == "found") {
jQuery.removeData(descendant.parent().get(0), "has_d");
return true;
} else
descendant = descendant.parent();
}
jQuery.removeData(this.get(0), "has_d");
return false;
}
-- dz
On Fri, Feb 6, 2009 at 10:43 AM, Jörn Zaefferer
<joern.zaeffe...@googlemail.com> wrote:
>
> Nope, that isn't it. My example is simplified, and the target comes an
> event triggered elsewhere. So target is just a reference to a DOM
> element, and can't be replaced with some selector.
>
> Jörn
>
> On Fri, Feb 6, 2009 at 3:46 PM, David Zhou <da...@nodnod.net> wrote:
>>
>> Isn't that basically:
>>
>> if ($('.container a:first').length)
>> $('.container').css('background-color', 'red');
>>
>> Unless I misunderstand what you're asking for?
>>
>> -- dz
>>
>>
>>
>> On Fri, Feb 6, 2009 at 6:58 AM, Jörn Zaefferer
>> <joern.zaeffe...@googlemail.com> wrote:
>>>
>>> I'm trying to solve the follow selector problem: Assuming two
>>> container elements that both have arbitrary descendents. Given a
>>> jQuery object containing these containers and one descendent of any of
>>> these, whats the most effecient way to find the correct parent
>>> element? Neither parents() nor closest() helps, as there is no
>>> sufficient simple selector available.
>>> In other words, I want to filter a selection by a descendent.
>>>
>>> My naiive implementation goes through all descendents, which isn't
>>> really acceptable: http://jsbin.com/uhama/edit
>>>
>>> Ideas?
>>>
>>> Jörn
>>>
>>> >
>>>
>>
>> >
>>
>
> >
>
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