Ajax support of custom events

[coubeatczech]

Hi,
in the SHtml object, there seems to be no support for custom events,
in functions like ajaxText. Looks like the only event that is caught
is blur. What if I want to listen to for example keypress? There seems
to be a "workaround", that is to write my own function, I've found
this via searching in this group:
def ajaxLiveText(value: String, func: String => JsCmd, attrs: (String,
String)*): Elem = {
S.fmapFunc(S.SFuncHolder(func)) {funcName =>
(attrs.foldLeft(<input type="text" value={value}/>)(_ %
_)) %
("onkeyup" -> makeAjaxCall(JsRaw("'" + funcName +
"=' + encodeURIComponent(this.value)")))
}
}
but still this is not an out of the box solution, things would even
get a little more complicated if I would like to listen to an custom
event like paste, it would be great to just specify the events which I
want to listen to in function parameters.
This is just an user feedback which I hope you like to have.
Jakub

[David Pollak]

Or:

def ajaxLiveText(value: String, func: String => JsCmd) = <input value={value} onkeyup={ajaxCall(JsRaw("this.value"), func)._2.toJsCmd}/>

We endeavor to make common tasks easy, there's a balance which is how to make sure the number of choices is not overwhelming.

I'm not sure if this method is common enough to strike the right place in the balance.

I'd much rather see a general purpose method (kind of like SHtml.onSubmit) that could be used to associate an ajaxCall with a broad range of form elements and events.

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[coubeatczech]

David,
thanks for answering, there are 4 ajaxText methods in SHtml now. This
is actually a lot I think. There is parameter ignoreBlur, which is
kind of dealing with one event. It could be replaced with another
parameter list with repeated parameter either as tuple
(event,function)* or just event* and would not add another method to
the SHtml object if number of choices means number of methods in
object, not number of parameters in method.
I'm also not sure if need for this is common enough, based on search
in this group, there are at least two people who felt the need so
seriously, that they decided to post here. :-)
Jakub

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[David Pollak]

See https://www.assembla.com/spaces/liftweb/tickets/826-add-a-more-generic-way-to-associate-tags-with-javascript-functions

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[coubeatczech]

Wow, that is exciting!
Thanks!

On Jan 6, 5:22 am, David Pollak <feeder.of.the.be...@gmail.com> wrote:
> Seehttps://www.assembla.com/spaces/liftweb/tickets/826-add-a-more-generi...

> > <liftweb%2Bunsu...@googlegroups.com<liftweb%252Buns...@googlegroups.com>

[Ivan Schuetz]

Hi,

is there already a way to add easily onkeypress handler to ajaxText instead of onblur? I understand from this Thread that a generic functionality was implemented, but I can't find which one / how to use it.

I also found this: https://groups.google.com/forum/?fromgroups=#!topic/liftweb/QUPD49S37q4 But it's from 2010 and probably there's a better way now...


Thanks,
Ivan

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[Diego Medina]

See my answer here
https://groups.google.com/d/topic/liftweb/g9-6dB6noac/discussion

look for liveajaxtext

Diego

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