[Lift] Re: execute code when browser is closed
Hey jack,
As I said before, I think the design you have is wrong if your needing
to code in a hacky way such as this. The way you articulate the
justification for using shutdown almost certianly clarifies an
incorrect design.
Personally I think you could use Ajax for this an have a much simpler
design of system... I would tend to recomend using comet when you have
some server side state that changes and needs update client side
continually. Kinda feel it's hammer to crack a nut here, but perhaps
that's just me.
Hope you get it sorted :-)
Cheers, Tim
Sent from my iPhone
On 6 Oct 2009, at 05:25, Jack Widman jack.wid...@gmail.com wrote:
So I am using a snippet like this
def go:NodeSeq = {
var term:String = S.param(term).openOr()
lift:surround with=default at=content
lift:comet type=JoopComet name={term}
auth:joop/auth:joop
/lift:comet
/lift:surround
}
And the term is indeed different each time. But I am still getting
the same results from two different browsers with different terms.
On Tue, Oct 6, 2009 at 12:18 AM, Naftoli Gugenheim naftoli...@gmail.com
wrote:
You are correct that Comet is a way to update information after the
page is loaded. I think there's a simpler way using ajax, but I
haven't explored those areas of Lift yet. But meanwhile you need to
have the xml specifying the comet actor be dynamic. So you need to
have that xml be generated by a snippet. A snippet is an XML to XML
function.
-
jackjack.wid...@gmail.com wrote:
Let me start again. Maybe I am misunderstanding when Comet should be
used. In my application, people search for web pages. I do a lot of
processing for each resulting page. First I just display the links and
then as the processing is finished, the links on the page are
automatically modified with the data I just found for each link. This
is all working fine.
But, the session is being shared among all users so if I make one
search in one browser, and then make another search from another
browser, I get the results from the first browser.
David suggested I name each CometActor differently. That is not
working, though maybe I am not doing it right.
On Oct 6, 12:01 am, Naftoli Gugenheim naftoli...@gmail.com wrote:
What do you mean?
-
jackjack.wid...@gmail.com wrote:
i guess you meant put the snippet right in the CometActor. Ok. Now
I'm
getting it.
On Oct 5, 11:46 pm, Jack Widman jack.wid...@gmail.com wrote:
Sorry if this is a dumb question but in lift:comet type=Search
name={searchString}/, what is searchString? This is in an html
file. I am
obviously missing something.
On Mon, Oct 5, 2009 at 2:40 PM, David Pollak
feeder.of.the.be...@gmail.comwrote:
On Mon, Oct 5, 2009 at 10:27 AM, Jack Widman
jack.wid...@gmail.comwrote:
Understood. My intention is to send a ShutDown message to the
CometActor
when somebody closes the browser. I need this so that when
they visit the
page in a browser again, the CometActor is 'reset'.
First, there's no way to determine if the browser window is
closed.
Second, *DO NOT* send a ShutDown message to the CometActor.
This is an
internal Lift piece of housekeeping. If you do this, you will
break stuff.
Don't do it. (There is a reason the message is not private,
but it should
not be used for this purpose.)
CometActors can be named:
lift:comet type=Search name={searchString}/
You can then have a separate CometActor for each
searchString. Voila...
you get what you want. Now, how do you make then CometActor
go away when
it's not being used anymore?
In your CometActor:
override def lifespan: Box[TimeSpan] = Full(3 minutes)
That means if a CometActor does not appear on a page for 3
minutes, it's
removed from the session. If the named CometActor is
requested again, a new
one will be created.
On Mon, Oct 5, 2009 at 1:18 PM, marius d.
marius.dan...@gmail.comwrote:
HTTP session termination does not equate with browser-close
event.
Br's,
Marius
On Oct 5, 3:22 pm, Jack Widman jack.wid...@gmail.com wrote:
Yes, thats what I meant. Thanks
On Mon, Oct 5, 2009 at 4:10 AM, Timothy Perrett
timo...@getintheloop.euwrote:
But you can do it on session termination (which is what
you probably
want):
http://scala-tools.org/mvnsites-snapshots/liftweb/lift-webkit/scalado
...
Checkout the method:
registerCleanupFunc
Cheers, Tim
On Oct 5, 8:54 am, Viktor Klang viktor.kl...@gmail.com
wrote:
On Mon, Oct 5, 2009 at 6:50 AM, jack
jack.wid...@gmail.com
wrote:
I would like to call a function when the browser is
closed. How
do I
do this?
You cannot reliably do this.
--
[Lift] Re: execute code when browser is closed
I didn't mean to sound like I am justifying the way I am doing. I definitely
do not have a good feel for lift yet and it feels hackey to me too. Part of
it is I'm rushing to get a demo done at the same time I am learning lift.
Thanks for your help.
On Tue, Oct 6, 2009 at 2:04 AM, Timothy Perrett timo...@getintheloop.euwrote:
Hey jack,
As I said before, I think the design you have is wrong if your needing to
code in a hacky way such as this. The way you articulate the justification
for using shutdown almost certianly clarifies an incorrect design.
Personally I think you could use Ajax for this an have a much simpler
design of system... I would tend to recomend using comet when you have some
server side state that changes and needs update client side continually.
Kinda feel it's hammer to crack a nut here, but perhaps that's just me.
Hope you get it sorted :-)
Cheers, Tim
Sent from my iPhone
On 6 Oct 2009, at 05:25, Jack Widman jack.wid...@gmail.com wrote:
So I am using a snippet like this
def go:NodeSeq = {
var term:String = S.param(term).openOr()
lift:surround with=default at=content
lift:comet type=JoopComet name={term}
auth:joop/auth:joop
/lift:comet
/lift:surround
}
And the term is indeed different each time. But I am still getting the same
results from two different browsers with different terms.
On Tue, Oct 6, 2009 at 12:18 AM, Naftoli Gugenheim naftoli...@gmail.com
naftoli...@gmail.com wrote:
You are correct that Comet is a way to update information after the page
is loaded. I think there's a simpler way using ajax, but I haven't explored
those areas of Lift yet. But meanwhile you need to have the xml specifying
the comet actor be dynamic. So you need to have that xml be generated by a
snippet. A snippet is an XML to XML function.
-
jack jack.wid...@gmail.comjack.wid...@gmail.com wrote:
Let me start again. Maybe I am misunderstanding when Comet should be
used. In my application, people search for web pages. I do a lot of
processing for each resulting page. First I just display the links and
then as the processing is finished, the links on the page are
automatically modified with the data I just found for each link. This
is all working fine.
But, the session is being shared among all users so if I make one
search in one browser, and then make another search from another
browser, I get the results from the first browser.
David suggested I name each CometActor differently. That is not
working, though maybe I am not doing it right.
On Oct 6, 12:01 am, Naftoli Gugenheim naftoli...@gmail.com wrote:
What do you mean?
-
jackjack.wid...@gmail.com wrote:
i guess you meant put the snippet right in the CometActor. Ok. Now I'm
getting it.
On Oct 5, 11:46 pm, Jack Widman jack.wid...@gmail.com wrote:
Sorry if this is a dumb question but in lift:comet type=Search
name={searchString}/, what is searchString? This is in an html file.
I am
obviously missing something.
On Mon, Oct 5, 2009 at 2:40 PM, David Pollak
feeder.of.the.be...@gmail.comfeeder.of.the.be...@gmail.comwrote:
On Mon, Oct 5, 2009 at 10:27 AM, Jack Widman jack.wid...@gmail.com
wrote:
Understood. My intention is to send a ShutDown message to the
CometActor
when somebody closes the browser. I need this so that when they
visit the
page in a browser again, the CometActor is 'reset'.
First, there's no way to determine if the browser window is closed.
Second, *DO NOT* send a ShutDown message to the CometActor. This is
an
internal Lift piece of housekeeping. If you do this, you will break
stuff.
Don't do it. (There is a reason the message is not private, but it
should
not be used for this purpose.)
CometActors can be named:
lift:comet type=Search name={searchString}/
You can then have a separate CometActor for each searchString.
Voila...
you get what you want. Now, how do you make then CometActor go away
when
it's not being used anymore?
In your CometActor:
override def lifespan: Box[TimeSpan] = Full(3 minutes)
That means if a CometActor does not appear on a page for 3 minutes,
it's
removed from the session. If the named CometActor is requested
again, a new
one will be created.
On Mon, Oct 5, 2009 at 1:18 PM, marius d. marius.dan...@gmail.com
wrote:
HTTP session termination does not equate with browser-close event.
Br's,
Marius
On Oct 5, 3:22 pm, Jack Widman jack.wid...@gmail.com wrote:
Yes, thats what I meant. Thanks
On Mon, Oct 5, 2009 at 4:10 AM, Timothy Perrett
timo...@getintheloop.euwrote:
But you can do it on session termination (which is what you
probably
want):
http://scala-tools.org/mvnsites-snapshots/liftweb/lift-webkit/scalado.
[Lift] Re: execute code when browser is closed
I'm pretty tired and I definitely did not try to compile this, but
maybe something like this using plain ajax might be better? If the
server cannot be contacted an alert box will pop up -- you can
customize that behavior using AjaxContext and using that with
SHtml.ajaxCall or jsonCall, I think.
-Ross
import scala.xml.NodeSeq
import net.liftweb.http.{S, SHtml, StatefulSnippet}
import net.liftweb.http.js.{JE, JsCmds}
import net.liftweb.util.Box.option2Box
import net.liftweb.util.TimeHelpers.intToTimeSpan
class Searcher extends StatefulSnippet
{
// FIXME use something to keep track of already displayed results
and only push updates
var results: List[String] = Nil
var done: Boolean
def search(ns: NodeSeq): NodeSeq = S.param(term).map(term = {
val resultsId = attr(id).openOr(search-results)
// kick off some thread that updates results and done
searching for term
head{ JsCmds.Script(
JsCmds.JsCrVar(updateResults, JE.AnonFunc
(SHtml.ajaxInvoke(() = updateResults(resultsId))._2))
JsCmds.After(5 seconds, JE.Call(updateResults))
) }/head ++
div
Searching for { term }
div id={ resultsId } /
/div
})
def updateResults(id: String): JsCmd =
JsCmds.SetHtml(id, results.map(result = div{ result }/
div))
if (!done) {
JsCmds.After(1 second, JE.Call(updateResults))
} else {
JsCmds.Noop
}
On Oct 6, 2009, at 2:07 AM, Jack Widman wrote:
I didn't mean to sound like I am justifying the way I am doing. I
definitely do not have a good feel for lift yet and it feels hackey
to me too. Part of it is I'm rushing to get a demo done at the same
time I am learning lift. Thanks for your help.
On Tue, Oct 6, 2009 at 2:04 AM, Timothy Perrett timo...@getintheloop.eu
wrote:
Hey jack,
As I said before, I think the design you have is wrong if your
needing to code in a hacky way such as this. The way you articulate
the justification for using shutdown almost certianly clarifies an
incorrect design.
Personally I think you could use Ajax for this an have a much
simpler design of system... I would tend to recomend using comet
when you have some server side state that changes and needs update
client side continually. Kinda feel it's hammer to crack a nut here,
but perhaps that's just me.
Hope you get it sorted :-)
Cheers, Tim
Sent from my iPhone
On 6 Oct 2009, at 05:25, Jack Widman jack.wid...@gmail.com wrote:
So I am using a snippet like this
def go:NodeSeq = {
var term:String = S.param(term).openOr()
lift:surround with=default at=content
lift:comet type=JoopComet name={term}
auth:joop/auth:joop
/lift:comet
/lift:surround
}
And the term is indeed different each time. But I am still getting
the same results from two different browsers with different terms.
On Tue, Oct 6, 2009 at 12:18 AM, Naftoli Gugenheim naftoli...@gmail.com
wrote:
You are correct that Comet is a way to update information after the
page is loaded. I think there's a simpler way using ajax, but I
haven't explored those areas of Lift yet. But meanwhile you need to
have the xml specifying the comet actor be dynamic. So you need to
have that xml be generated by a snippet. A snippet is an XML to XML
function.
-
jackjack.wid...@gmail.com wrote:
Let me start again. Maybe I am misunderstanding when Comet should be
used. In my application, people search for web pages. I do a lot of
processing for each resulting page. First I just display the links
and
then as the processing is finished, the links on the page are
automatically modified with the data I just found for each link. This
is all working fine.
But, the session is being shared among all users so if I make one
search in one browser, and then make another search from another
browser, I get the results from the first browser.
David suggested I name each CometActor differently. That is not
working, though maybe I am not doing it right.
On Oct 6, 12:01 am, Naftoli Gugenheim naftoli...@gmail.com wrote:
What do you mean?
-
jackjack.wid...@gmail.com wrote:
i guess you meant put the snippet right in the CometActor. Ok.
Now I'm
getting it.
On Oct 5, 11:46 pm, Jack Widman jack.wid...@gmail.com wrote:
Sorry if this is a dumb question but in lift:comet type=Search
name={searchString}/, what is searchString? This is in an html
file. I am
obviously missing something.
On Mon, Oct 5, 2009 at 2:40 PM, David Pollak
feeder.of.the.be...@gmail.comwrote:
On Mon, Oct 5, 2009 at 10:27 AM, Jack Widman
jack.wid...@gmail.comwrote:
Understood. My intention is to send a ShutDown message to
the CometActor
when somebody closes the browser. I need this so that when
[Lift] Re: execute code when browser is closed
As Tim said, but in different words.
Use Comet when changed state needs to be *pushed* from the server.
Use Ajax when you need to asynchronously *pull* data from the server.
-
Ross Mellgrendri...@gmail.com wrote:
I'm pretty tired and I definitely did not try to compile this, but
maybe something like this using plain ajax might be better? If the
server cannot be contacted an alert box will pop up -- you can
customize that behavior using AjaxContext and using that with
SHtml.ajaxCall or jsonCall, I think.
-Ross
import scala.xml.NodeSeq
import net.liftweb.http.{S, SHtml, StatefulSnippet}
import net.liftweb.http.js.{JE, JsCmds}
import net.liftweb.util.Box.option2Box
import net.liftweb.util.TimeHelpers.intToTimeSpan
class Searcher extends StatefulSnippet
{
// FIXME use something to keep track of already displayed results
and only push updates
var results: List[String] = Nil
var done: Boolean
def search(ns: NodeSeq): NodeSeq = S.param(term).map(term = {
val resultsId = attr(id).openOr(search-results)
// kick off some thread that updates results and done
searching for term
head{ JsCmds.Script(
JsCmds.JsCrVar(updateResults, JE.AnonFunc
(SHtml.ajaxInvoke(() = updateResults(resultsId))._2))
JsCmds.After(5 seconds, JE.Call(updateResults))
) }/head ++
div
Searching for { term }
div id={ resultsId } /
/div
})
def updateResults(id: String): JsCmd =
JsCmds.SetHtml(id, results.map(result = div{ result }/
div))
if (!done) {
JsCmds.After(1 second, JE.Call(updateResults))
} else {
JsCmds.Noop
}
On Oct 6, 2009, at 2:07 AM, Jack Widman wrote:
I didn't mean to sound like I am justifying the way I am doing. I
definitely do not have a good feel for lift yet and it feels hackey
to me too. Part of it is I'm rushing to get a demo done at the same
time I am learning lift. Thanks for your help.
On Tue, Oct 6, 2009 at 2:04 AM, Timothy Perrett timo...@getintheloop.eu
wrote:
Hey jack,
As I said before, I think the design you have is wrong if your
needing to code in a hacky way such as this. The way you articulate
the justification for using shutdown almost certianly clarifies an
incorrect design.
Personally I think you could use Ajax for this an have a much
simpler design of system... I would tend to recomend using comet
when you have some server side state that changes and needs update
client side continually. Kinda feel it's hammer to crack a nut here,
but perhaps that's just me.
Hope you get it sorted :-)
Cheers, Tim
Sent from my iPhone
On 6 Oct 2009, at 05:25, Jack Widman jack.wid...@gmail.com wrote:
So I am using a snippet like this
def go:NodeSeq = {
var term:String = S.param(term).openOr()
lift:surround with=default at=content
lift:comet type=JoopComet name={term}
auth:joop/auth:joop
/lift:comet
/lift:surround
}
And the term is indeed different each time. But I am still getting
the same results from two different browsers with different terms.
On Tue, Oct 6, 2009 at 12:18 AM, Naftoli Gugenheim naftoli...@gmail.com
wrote:
You are correct that Comet is a way to update information after the
page is loaded. I think there's a simpler way using ajax, but I
haven't explored those areas of Lift yet. But meanwhile you need to
have the xml specifying the comet actor be dynamic. So you need to
have that xml be generated by a snippet. A snippet is an XML to XML
function.
-
jackjack.wid...@gmail.com wrote:
Let me start again. Maybe I am misunderstanding when Comet should be
used. In my application, people search for web pages. I do a lot of
processing for each resulting page. First I just display the links
and
then as the processing is finished, the links on the page are
automatically modified with the data I just found for each link. This
is all working fine.
But, the session is being shared among all users so if I make one
search in one browser, and then make another search from another
browser, I get the results from the first browser.
David suggested I name each CometActor differently. That is not
working, though maybe I am not doing it right.
On Oct 6, 12:01 am, Naftoli Gugenheim naftoli...@gmail.com wrote:
What do you mean?
-
jackjack.wid...@gmail.com wrote:
i guess you meant put the snippet right in the CometActor. Ok.
Now I'm
getting it.
On Oct 5, 11:46 pm, Jack Widman jack.wid...@gmail.com wrote:
Sorry if this is a dumb question but in lift:comet type=Search
name={searchString}/, what is searchString? This is in an html
file. I am
obviously missing something.
On Mon, Oct 5, 2009 at 2:40 PM, David Pollak
[Lift] Re: execute code when browser is closed
On Mon, Oct 5, 2009 at 6:50 AM, jack jack.wid...@gmail.com wrote: I would like to call a function when the browser is closed. How do I do this? You cannot reliably do this. -- Viktor Klang Blog: klangism.blogspot.com Twttr: viktorklang Lift Committer - liftweb.com AKKA Committer - akkasource.org Cassidy - github.com/viktorklang/Cassidy.git SoftPub founder: http://groups.google.com/group/softpub --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: execute code when browser is closed
But you can do it on session termination (which is what you probably want): http://scala-tools.org/mvnsites-snapshots/liftweb/lift-webkit/scaladocs/net/liftweb/http/SessionVar.html Checkout the method: registerCleanupFunc Cheers, Tim On Oct 5, 8:54 am, Viktor Klang viktor.kl...@gmail.com wrote: On Mon, Oct 5, 2009 at 6:50 AM, jack jack.wid...@gmail.com wrote: I would like to call a function when the browser is closed. How do I do this? You cannot reliably do this. -- Viktor Klang Blog: klangism.blogspot.com Twttr: viktorklang Lift Committer - liftweb.com AKKA Committer - akkasource.org Cassidy - github.com/viktorklang/Cassidy.git SoftPub founder:http://groups.google.com/group/softpub --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: execute code when browser is closed
HTTP session termination does not equate with browser-close event. Br's, Marius On Oct 5, 3:22 pm, Jack Widman jack.wid...@gmail.com wrote: Yes, thats what I meant. Thanks On Mon, Oct 5, 2009 at 4:10 AM, Timothy Perrett timo...@getintheloop.euwrote: But you can do it on session termination (which is what you probably want): http://scala-tools.org/mvnsites-snapshots/liftweb/lift-webkit/scalado... Checkout the method: registerCleanupFunc Cheers, Tim On Oct 5, 8:54 am, Viktor Klang viktor.kl...@gmail.com wrote: On Mon, Oct 5, 2009 at 6:50 AM, jack jack.wid...@gmail.com wrote: I would like to call a function when the browser is closed. How do I do this? You cannot reliably do this. -- Viktor Klang Blog: klangism.blogspot.com Twttr: viktorklang Lift Committer - liftweb.com AKKA Committer - akkasource.org Cassidy - github.com/viktorklang/Cassidy.git SoftPub founder:http://groups.google.com/group/softpub -- Jack --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: execute code when browser is closed
Understood. My intention is to send a ShutDown message to the CometActor when somebody closes the browser. I need this so that when they visit the page in a browser again, the CometActor is 'reset'. On Mon, Oct 5, 2009 at 1:18 PM, marius d. marius.dan...@gmail.com wrote: HTTP session termination does not equate with browser-close event. Br's, Marius On Oct 5, 3:22 pm, Jack Widman jack.wid...@gmail.com wrote: Yes, thats what I meant. Thanks On Mon, Oct 5, 2009 at 4:10 AM, Timothy Perrett timo...@getintheloop.eu wrote: But you can do it on session termination (which is what you probably want): http://scala-tools.org/mvnsites-snapshots/liftweb/lift-webkit/scalado. .. Checkout the method: registerCleanupFunc Cheers, Tim On Oct 5, 8:54 am, Viktor Klang viktor.kl...@gmail.com wrote: On Mon, Oct 5, 2009 at 6:50 AM, jack jack.wid...@gmail.com wrote: I would like to call a function when the browser is closed. How do I do this? You cannot reliably do this. -- Viktor Klang Blog: klangism.blogspot.com Twttr: viktorklang Lift Committer - liftweb.com AKKA Committer - akkasource.org Cassidy - github.com/viktorklang/Cassidy.git SoftPub founder:http://groups.google.com/group/softpub -- Jack -- Jack --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: execute code when browser is closed
Interesting. I will try that. And I won't send any more ShutDownMessages :)
Though I should add that each CometActor is doing a lot of processing. So I
it would be good if I could shut one down somehow when the user searches on
a new term. Timeout won't work because there is no way to know how long it
will take.
Maybe I could just kill all the actors directly that are doing the
processing.
On Mon, Oct 5, 2009 at 2:40 PM, David Pollak
feeder.of.the.be...@gmail.comwrote:
On Mon, Oct 5, 2009 at 10:27 AM, Jack Widman jack.wid...@gmail.comwrote:
Understood. My intention is to send a ShutDown message to the CometActor
when somebody closes the browser. I need this so that when they visit the
page in a browser again, the CometActor is 'reset'.
First, there's no way to determine if the browser window is closed.
Second, *DO NOT* send a ShutDown message to the CometActor. This is an
internal Lift piece of housekeeping. If you do this, you will break stuff.
Don't do it. (There is a reason the message is not private, but it should
not be used for this purpose.)
CometActors can be named:
lift:comet type=Search name={searchString}/
You can then have a separate CometActor for each searchString. Voila...
you get what you want. Now, how do you make then CometActor go away when
it's not being used anymore?
In your CometActor:
override def lifespan: Box[TimeSpan] = Full(3 minutes)
That means if a CometActor does not appear on a page for 3 minutes, it's
removed from the session. If the named CometActor is requested again, a new
one will be created.
On Mon, Oct 5, 2009 at 1:18 PM, marius d. marius.dan...@gmail.comwrote:
HTTP session termination does not equate with browser-close event.
Br's,
Marius
On Oct 5, 3:22 pm, Jack Widman jack.wid...@gmail.com wrote:
Yes, thats what I meant. Thanks
On Mon, Oct 5, 2009 at 4:10 AM, Timothy Perrett
timo...@getintheloop.euwrote:
But you can do it on session termination (which is what you probably
want):
http://scala-tools.org/mvnsites-snapshots/liftweb/lift-webkit/scalado...
Checkout the method:
registerCleanupFunc
Cheers, Tim
On Oct 5, 8:54 am, Viktor Klang viktor.kl...@gmail.com wrote:
On Mon, Oct 5, 2009 at 6:50 AM, jack jack.wid...@gmail.com
wrote:
I would like to call a function when the browser is closed. How
do I
do this?
You cannot reliably do this.
--
Viktor Klang
Blog: klangism.blogspot.com
Twttr: viktorklang
Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
SoftPub founder:http://groups.google.com/group/softpub
--
Jack
--
Jack
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Surf the harmonics
--
Jack
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
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liftweb+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/liftweb?hl=en
-~--~~~~--~~--~--~---
[Lift] Re: execute code when browser is closed
On Mon, Oct 5, 2009 at 11:45 AM, Jack Widman jack.wid...@gmail.com wrote:
Interesting. I will try that. And I won't send any more ShutDownMessages :)
Though I should add that each CometActor is doing a lot of processing. So I
it would be good if I could shut one down somehow when the user searches on
a new term. Timeout won't work because there is no way to know how long it
will take.
Maybe I could just kill all the actors directly that are doing the
processing.
That's going to be even worse. You'll kill something out from under Lift...
it's going to cause a huge pile of pain.
You can remove an Actor from the session and that will cause ShutDown to be
sent to it, but depending on how the Actor was written it's not going to
stop processing its mailbox.
Bottom line... there's no way to tell if a user is not looking at a page
with an Actor anymore. The best way to deal with that is timing the Actor
out. It's going to take time (your timeout period), but it's the best way
to do it.
On Mon, Oct 5, 2009 at 2:40 PM, David Pollak
feeder.of.the.be...@gmail.com wrote:
On Mon, Oct 5, 2009 at 10:27 AM, Jack Widman jack.wid...@gmail.comwrote:
Understood. My intention is to send a ShutDown message to the CometActor
when somebody closes the browser. I need this so that when they visit the
page in a browser again, the CometActor is 'reset'.
First, there's no way to determine if the browser window is closed.
Second, *DO NOT* send a ShutDown message to the CometActor. This is an
internal Lift piece of housekeeping. If you do this, you will break stuff.
Don't do it. (There is a reason the message is not private, but it should
not be used for this purpose.)
CometActors can be named:
lift:comet type=Search name={searchString}/
You can then have a separate CometActor for each searchString. Voila...
you get what you want. Now, how do you make then CometActor go away when
it's not being used anymore?
In your CometActor:
override def lifespan: Box[TimeSpan] = Full(3 minutes)
That means if a CometActor does not appear on a page for 3 minutes, it's
removed from the session. If the named CometActor is requested again, a new
one will be created.
On Mon, Oct 5, 2009 at 1:18 PM, marius d. marius.dan...@gmail.comwrote:
HTTP session termination does not equate with browser-close event.
Br's,
Marius
On Oct 5, 3:22 pm, Jack Widman jack.wid...@gmail.com wrote:
Yes, thats what I meant. Thanks
On Mon, Oct 5, 2009 at 4:10 AM, Timothy Perrett
timo...@getintheloop.euwrote:
But you can do it on session termination (which is what you probably
want):
http://scala-tools.org/mvnsites-snapshots/liftweb/lift-webkit/scalado.
..
Checkout the method:
registerCleanupFunc
Cheers, Tim
On Oct 5, 8:54 am, Viktor Klang viktor.kl...@gmail.com wrote:
On Mon, Oct 5, 2009 at 6:50 AM, jack jack.wid...@gmail.com
wrote:
I would like to call a function when the browser is closed. How
do I
do this?
You cannot reliably do this.
--
Viktor Klang
Blog: klangism.blogspot.com
Twttr: viktorklang
Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
SoftPub founder:http://groups.google.com/group/softpub
--
Jack
--
Jack
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Surf the harmonics
--
Jack
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Surf the harmonics
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/liftweb?hl=en
-~--~~~~--~~--~--~---
[Lift] Re: execute code when browser is closed
In my app, when the user is done searching on one keyword, they click a link
which takes them back to the main search page. Thats the time when I wanted
the CometActor to stop. Otherwise there will be too many threads floating
around and performance will suffer.
On Mon, Oct 5, 2009 at 2:50 PM, David Pollak
feeder.of.the.be...@gmail.comwrote:
On Mon, Oct 5, 2009 at 11:45 AM, Jack Widman jack.wid...@gmail.comwrote:
Interesting. I will try that. And I won't send any more ShutDownMessages
:)
Though I should add that each CometActor is doing a lot of processing. So
I it would be good if I could shut one down somehow when the user searches
on a new term. Timeout won't work because there is no way to know how long
it will take.
Maybe I could just kill all the actors directly that are doing the
processing.
That's going to be even worse. You'll kill something out from under
Lift... it's going to cause a huge pile of pain.
You can remove an Actor from the session and that will cause ShutDown to be
sent to it, but depending on how the Actor was written it's not going to
stop processing its mailbox.
Bottom line... there's no way to tell if a user is not looking at a page
with an Actor anymore. The best way to deal with that is timing the Actor
out. It's going to take time (your timeout period), but it's the best way
to do it.
On Mon, Oct 5, 2009 at 2:40 PM, David Pollak
feeder.of.the.be...@gmail.com wrote:
On Mon, Oct 5, 2009 at 10:27 AM, Jack Widman jack.wid...@gmail.comwrote:
Understood. My intention is to send a ShutDown message to the CometActor
when somebody closes the browser. I need this so that when they visit the
page in a browser again, the CometActor is 'reset'.
First, there's no way to determine if the browser window is closed.
Second, *DO NOT* send a ShutDown message to the CometActor. This is an
internal Lift piece of housekeeping. If you do this, you will break stuff.
Don't do it. (There is a reason the message is not private, but it should
not be used for this purpose.)
CometActors can be named:
lift:comet type=Search name={searchString}/
You can then have a separate CometActor for each searchString. Voila...
you get what you want. Now, how do you make then CometActor go away when
it's not being used anymore?
In your CometActor:
override def lifespan: Box[TimeSpan] = Full(3 minutes)
That means if a CometActor does not appear on a page for 3 minutes, it's
removed from the session. If the named CometActor is requested again, a new
one will be created.
On Mon, Oct 5, 2009 at 1:18 PM, marius d. marius.dan...@gmail.comwrote:
HTTP session termination does not equate with browser-close event.
Br's,
Marius
On Oct 5, 3:22 pm, Jack Widman jack.wid...@gmail.com wrote:
Yes, thats what I meant. Thanks
On Mon, Oct 5, 2009 at 4:10 AM, Timothy Perrett
timo...@getintheloop.euwrote:
But you can do it on session termination (which is what you
probably
want):
http://scala-tools.org/mvnsites-snapshots/liftweb/lift-webkit/scalado.
..
Checkout the method:
registerCleanupFunc
Cheers, Tim
On Oct 5, 8:54 am, Viktor Klang viktor.kl...@gmail.com wrote:
On Mon, Oct 5, 2009 at 6:50 AM, jack jack.wid...@gmail.com
wrote:
I would like to call a function when the browser is closed. How
do I
do this?
You cannot reliably do this.
--
Viktor Klang
Blog: klangism.blogspot.com
Twttr: viktorklang
Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
SoftPub founder:http://groups.google.com/group/softpub
--
Jack
--
Jack
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Surf the harmonics
--
Jack
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Surf the harmonics
--
Jack
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/liftweb?hl=en
-~--~~~~--~~--~--~---
[Lift] Re: execute code when browser is closed
On Mon, Oct 5, 2009 at 11:53 AM, Jack Widman jack.wid...@gmail.com wrote:
In my app, when the user is done searching on one keyword, they click a
link which takes them back to the main search page. Thats the time when I
wanted the CometActor to stop. Otherwise there will be too many threads
floating around and performance will suffer.
Why? Actors do not consume threads, they consume memory unless they are
actively processing a message.
On Mon, Oct 5, 2009 at 2:50 PM, David Pollak
feeder.of.the.be...@gmail.com wrote:
On Mon, Oct 5, 2009 at 11:45 AM, Jack Widman jack.wid...@gmail.comwrote:
Interesting. I will try that. And I won't send any more ShutDownMessages
:)
Though I should add that each CometActor is doing a lot of processing. So
I it would be good if I could shut one down somehow when the user searches
on a new term. Timeout won't work because there is no way to know how long
it will take.
Maybe I could just kill all the actors directly that are doing the
processing.
That's going to be even worse. You'll kill something out from under
Lift... it's going to cause a huge pile of pain.
You can remove an Actor from the session and that will cause ShutDown to
be sent to it, but depending on how the Actor was written it's not going to
stop processing its mailbox.
Bottom line... there's no way to tell if a user is not looking at a page
with an Actor anymore. The best way to deal with that is timing the Actor
out. It's going to take time (your timeout period), but it's the best way
to do it.
On Mon, Oct 5, 2009 at 2:40 PM, David Pollak
feeder.of.the.be...@gmail.com wrote:
On Mon, Oct 5, 2009 at 10:27 AM, Jack Widman jack.wid...@gmail.comwrote:
Understood. My intention is to send a ShutDown message to the
CometActor when somebody closes the browser. I need this so that when they
visit the page in a browser again, the CometActor is 'reset'.
First, there's no way to determine if the browser window is closed.
Second, *DO NOT* send a ShutDown message to the CometActor. This is an
internal Lift piece of housekeeping. If you do this, you will break stuff.
Don't do it. (There is a reason the message is not private, but it should
not be used for this purpose.)
CometActors can be named:
lift:comet type=Search name={searchString}/
You can then have a separate CometActor for each searchString. Voila...
you get what you want. Now, how do you make then CometActor go away when
it's not being used anymore?
In your CometActor:
override def lifespan: Box[TimeSpan] = Full(3 minutes)
That means if a CometActor does not appear on a page for 3 minutes, it's
removed from the session. If the named CometActor is requested again, a
new
one will be created.
On Mon, Oct 5, 2009 at 1:18 PM, marius d. marius.dan...@gmail.comwrote:
HTTP session termination does not equate with browser-close event.
Br's,
Marius
On Oct 5, 3:22 pm, Jack Widman jack.wid...@gmail.com wrote:
Yes, thats what I meant. Thanks
On Mon, Oct 5, 2009 at 4:10 AM, Timothy Perrett
timo...@getintheloop.euwrote:
But you can do it on session termination (which is what you
probably
want):
http://scala-tools.org/mvnsites-snapshots/liftweb/lift-webkit/scalado.
..
Checkout the method:
registerCleanupFunc
Cheers, Tim
On Oct 5, 8:54 am, Viktor Klang viktor.kl...@gmail.com wrote:
On Mon, Oct 5, 2009 at 6:50 AM, jack jack.wid...@gmail.com
wrote:
I would like to call a function when the browser is closed.
How do I
do this?
You cannot reliably do this.
--
Viktor Klang
Blog: klangism.blogspot.com
Twttr: viktorklang
Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
SoftPub founder:http://groups.google.com/group/softpub
--
Jack
--
Jack
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Surf the harmonics
--
Jack
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Surf the harmonics
--
Jack
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Surf the harmonics
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/liftweb?hl=en
-~--~~~~--~~--~--~---
[Lift] Re: execute code when browser is closed
Because when the users searches on a new keyword, the actors that were
processing the results for the last keyword are still processing (some of
them). But I can just send each of those a message to stop processing, no?
No problem with that, right?
On Mon, Oct 5, 2009 at 3:02 PM, David Pollak
feeder.of.the.be...@gmail.comwrote:
On Mon, Oct 5, 2009 at 11:53 AM, Jack Widman jack.wid...@gmail.comwrote:
In my app, when the user is done searching on one keyword, they click a
link which takes them back to the main search page. Thats the time when I
wanted the CometActor to stop. Otherwise there will be too many threads
floating around and performance will suffer.
Why? Actors do not consume threads, they consume memory unless they are
actively processing a message.
On Mon, Oct 5, 2009 at 2:50 PM, David Pollak
feeder.of.the.be...@gmail.com wrote:
On Mon, Oct 5, 2009 at 11:45 AM, Jack Widman jack.wid...@gmail.comwrote:
Interesting. I will try that. And I won't send any more ShutDownMessages
:)
Though I should add that each CometActor is doing a lot of processing.
So I it would be good if I could shut one down somehow when the user
searches on a new term. Timeout won't work because there is no way to know
how long it will take.
Maybe I could just kill all the actors directly that are doing the
processing.
That's going to be even worse. You'll kill something out from under
Lift... it's going to cause a huge pile of pain.
You can remove an Actor from the session and that will cause ShutDown to
be sent to it, but depending on how the Actor was written it's not going to
stop processing its mailbox.
Bottom line... there's no way to tell if a user is not looking at a page
with an Actor anymore. The best way to deal with that is timing the Actor
out. It's going to take time (your timeout period), but it's the best way
to do it.
On Mon, Oct 5, 2009 at 2:40 PM, David Pollak
feeder.of.the.be...@gmail.com wrote:
On Mon, Oct 5, 2009 at 10:27 AM, Jack Widman jack.wid...@gmail.comwrote:
Understood. My intention is to send a ShutDown message to the
CometActor when somebody closes the browser. I need this so that when
they
visit the page in a browser again, the CometActor is 'reset'.
First, there's no way to determine if the browser window is closed.
Second, *DO NOT* send a ShutDown message to the CometActor. This is an
internal Lift piece of housekeeping. If you do this, you will break
stuff.
Don't do it. (There is a reason the message is not private, but it
should
not be used for this purpose.)
CometActors can be named:
lift:comet type=Search name={searchString}/
You can then have a separate CometActor for each searchString.
Voila... you get what you want. Now, how do you make then CometActor go
away when it's not being used anymore?
In your CometActor:
override def lifespan: Box[TimeSpan] = Full(3 minutes)
That means if a CometActor does not appear on a page for 3 minutes,
it's removed from the session. If the named CometActor is requested
again,
a new one will be created.
On Mon, Oct 5, 2009 at 1:18 PM, marius d. marius.dan...@gmail.comwrote:
HTTP session termination does not equate with browser-close event.
Br's,
Marius
On Oct 5, 3:22 pm, Jack Widman jack.wid...@gmail.com wrote:
Yes, thats what I meant. Thanks
On Mon, Oct 5, 2009 at 4:10 AM, Timothy Perrett
timo...@getintheloop.euwrote:
But you can do it on session termination (which is what you
probably
want):
http://scala-tools.org/mvnsites-snapshots/liftweb/lift-webkit/scalado.
..
Checkout the method:
registerCleanupFunc
Cheers, Tim
On Oct 5, 8:54 am, Viktor Klang viktor.kl...@gmail.com wrote:
On Mon, Oct 5, 2009 at 6:50 AM, jack jack.wid...@gmail.com
wrote:
I would like to call a function when the browser is closed.
How do I
do this?
You cannot reliably do this.
--
Viktor Klang
Blog: klangism.blogspot.com
Twttr: viktorklang
Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
SoftPub founder:http://groups.google.com/group/softpub
--
Jack
--
Jack
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Surf the harmonics
--
Jack
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Surf the harmonics
--
Jack
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Surf the harmonics
--
Jack
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To
[Lift] Re: execute code when browser is closed
On Mon, Oct 5, 2009 at 12:06 PM, Jack Widman jack.wid...@gmail.com wrote:
Because when the users searches on a new keyword, the actors that were
processing the results for the last keyword are still processing (some of
them). But I can just send each of those a message to stop processing, no?
No problem with that, right?
Sure... send them a message that says tell all your jobs to stop. This
has nothing to do with the CometActor lifecycle. It is all your application
level stuff.
On Mon, Oct 5, 2009 at 3:02 PM, David Pollak
feeder.of.the.be...@gmail.com wrote:
On Mon, Oct 5, 2009 at 11:53 AM, Jack Widman jack.wid...@gmail.comwrote:
In my app, when the user is done searching on one keyword, they click a
link which takes them back to the main search page. Thats the time when I
wanted the CometActor to stop. Otherwise there will be too many threads
floating around and performance will suffer.
Why? Actors do not consume threads, they consume memory unless they are
actively processing a message.
On Mon, Oct 5, 2009 at 2:50 PM, David Pollak
feeder.of.the.be...@gmail.com wrote:
On Mon, Oct 5, 2009 at 11:45 AM, Jack Widman jack.wid...@gmail.comwrote:
Interesting. I will try that. And I won't send any more
ShutDownMessages :)
Though I should add that each CometActor is doing a lot of processing.
So I it would be good if I could shut one down somehow when the user
searches on a new term. Timeout won't work because there is no way to know
how long it will take.
Maybe I could just kill all the actors directly that are doing the
processing.
That's going to be even worse. You'll kill something out from under
Lift... it's going to cause a huge pile of pain.
You can remove an Actor from the session and that will cause ShutDown to
be sent to it, but depending on how the Actor was written it's not going to
stop processing its mailbox.
Bottom line... there's no way to tell if a user is not looking at a page
with an Actor anymore. The best way to deal with that is timing the Actor
out. It's going to take time (your timeout period), but it's the best way
to do it.
On Mon, Oct 5, 2009 at 2:40 PM, David Pollak
feeder.of.the.be...@gmail.com wrote:
On Mon, Oct 5, 2009 at 10:27 AM, Jack Widman
jack.wid...@gmail.comwrote:
Understood. My intention is to send a ShutDown message to the
CometActor when somebody closes the browser. I need this so that when
they
visit the page in a browser again, the CometActor is 'reset'.
First, there's no way to determine if the browser window is closed.
Second, *DO NOT* send a ShutDown message to the CometActor. This is
an internal Lift piece of housekeeping. If you do this, you will break
stuff. Don't do it. (There is a reason the message is not private, but
it
should not be used for this purpose.)
CometActors can be named:
lift:comet type=Search name={searchString}/
You can then have a separate CometActor for each searchString.
Voila... you get what you want. Now, how do you make then CometActor go
away when it's not being used anymore?
In your CometActor:
override def lifespan: Box[TimeSpan] = Full(3 minutes)
That means if a CometActor does not appear on a page for 3 minutes,
it's removed from the session. If the named CometActor is requested
again,
a new one will be created.
On Mon, Oct 5, 2009 at 1:18 PM, marius d.
marius.dan...@gmail.comwrote:
HTTP session termination does not equate with browser-close event.
Br's,
Marius
On Oct 5, 3:22 pm, Jack Widman jack.wid...@gmail.com wrote:
Yes, thats what I meant. Thanks
On Mon, Oct 5, 2009 at 4:10 AM, Timothy Perrett
timo...@getintheloop.euwrote:
But you can do it on session termination (which is what you
probably
want):
http://scala-tools.org/mvnsites-snapshots/liftweb/lift-webkit/scalado.
..
Checkout the method:
registerCleanupFunc
Cheers, Tim
On Oct 5, 8:54 am, Viktor Klang viktor.kl...@gmail.com wrote:
On Mon, Oct 5, 2009 at 6:50 AM, jack jack.wid...@gmail.com
wrote:
I would like to call a function when the browser is closed.
How do I
do this?
You cannot reliably do this.
--
Viktor Klang
Blog: klangism.blogspot.com
Twttr: viktorklang
Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
SoftPub founder:http://groups.google.com/group/softpub
--
Jack
--
Jack
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Surf the harmonics
--
Jack
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Surf the harmonics
--
Jack
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala
[Lift] Re: execute code when browser is closed
Good. Only thing is that if their job was to start an actor to go out and
search some pages, say, then 'stop your job' means ' 'call your 'exit'
method, no?Not trying to be a wise guy. I actually have a number of VCs
lined up to look at my app. Overall I am very glad to be using Lift. On the
Comet alone it save me a LOT of time.
Of course, I have a lot to learn.
On Mon, Oct 5, 2009 at 3:08 PM, David Pollak
feeder.of.the.be...@gmail.comwrote:
On Mon, Oct 5, 2009 at 12:06 PM, Jack Widman jack.wid...@gmail.comwrote:
Because when the users searches on a new keyword, the actors that were
processing the results for the last keyword are still processing (some of
them). But I can just send each of those a message to stop processing, no?
No problem with that, right?
Sure... send them a message that says tell all your jobs to stop. This
has nothing to do with the CometActor lifecycle. It is all your application
level stuff.
On Mon, Oct 5, 2009 at 3:02 PM, David Pollak
feeder.of.the.be...@gmail.com wrote:
On Mon, Oct 5, 2009 at 11:53 AM, Jack Widman jack.wid...@gmail.comwrote:
In my app, when the user is done searching on one keyword, they click a
link which takes them back to the main search page. Thats the time when I
wanted the CometActor to stop. Otherwise there will be too many threads
floating around and performance will suffer.
Why? Actors do not consume threads, they consume memory unless they are
actively processing a message.
On Mon, Oct 5, 2009 at 2:50 PM, David Pollak
feeder.of.the.be...@gmail.com wrote:
On Mon, Oct 5, 2009 at 11:45 AM, Jack Widman jack.wid...@gmail.comwrote:
Interesting. I will try that. And I won't send any more
ShutDownMessages :)
Though I should add that each CometActor is doing a lot of processing.
So I it would be good if I could shut one down somehow when the user
searches on a new term. Timeout won't work because there is no way to
know
how long it will take.
Maybe I could just kill all the actors directly that are doing the
processing.
That's going to be even worse. You'll kill something out from under
Lift... it's going to cause a huge pile of pain.
You can remove an Actor from the session and that will cause ShutDown
to be sent to it, but depending on how the Actor was written it's not
going
to stop processing its mailbox.
Bottom line... there's no way to tell if a user is not looking at a
page with an Actor anymore. The best way to deal with that is timing the
Actor out. It's going to take time (your timeout period), but it's the
best
way to do it.
On Mon, Oct 5, 2009 at 2:40 PM, David Pollak
feeder.of.the.be...@gmail.com wrote:
On Mon, Oct 5, 2009 at 10:27 AM, Jack Widman
jack.wid...@gmail.comwrote:
Understood. My intention is to send a ShutDown message to the
CometActor when somebody closes the browser. I need this so that when
they
visit the page in a browser again, the CometActor is 'reset'.
First, there's no way to determine if the browser window is closed.
Second, *DO NOT* send a ShutDown message to the CometActor. This is
an internal Lift piece of housekeeping. If you do this, you will break
stuff. Don't do it. (There is a reason the message is not private,
but it
should not be used for this purpose.)
CometActors can be named:
lift:comet type=Search name={searchString}/
You can then have a separate CometActor for each searchString.
Voila... you get what you want. Now, how do you make then CometActor
go
away when it's not being used anymore?
In your CometActor:
override def lifespan: Box[TimeSpan] = Full(3 minutes)
That means if a CometActor does not appear on a page for 3 minutes,
it's removed from the session. If the named CometActor is requested
again,
a new one will be created.
On Mon, Oct 5, 2009 at 1:18 PM, marius d.
marius.dan...@gmail.comwrote:
HTTP session termination does not equate with browser-close event.
Br's,
Marius
On Oct 5, 3:22 pm, Jack Widman jack.wid...@gmail.com wrote:
Yes, thats what I meant. Thanks
On Mon, Oct 5, 2009 at 4:10 AM, Timothy Perrett
timo...@getintheloop.euwrote:
But you can do it on session termination (which is what you
probably
want):
http://scala-tools.org/mvnsites-snapshots/liftweb/lift-webkit/scalado.
..
Checkout the method:
registerCleanupFunc
Cheers, Tim
On Oct 5, 8:54 am, Viktor Klang viktor.kl...@gmail.com
wrote:
On Mon, Oct 5, 2009 at 6:50 AM, jack jack.wid...@gmail.com
wrote:
I would like to call a function when the browser is closed.
How do I
do this?
You cannot reliably do this.
--
Viktor Klang
Blog: klangism.blogspot.com
Twttr: viktorklang
Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
SoftPub founder:http://groups.google.com/group/softpub
--
Jack
--
Jack
--
Lift, the simply
[Lift] Re: execute code when browser is closed
On Mon, Oct 5, 2009 at 12:13 PM, Jack Widman jack.wid...@gmail.com wrote:
Good. Only thing is that if their job was to start an actor to go out and
search some pages, say, then 'stop your job' means ' 'call your 'exit'
method, no?
I have no idea what you application logic looks like, so I don't know what
call your exit will do. If you call exit on a CometActor, you'll mess
things up (as you've discovered.) But your search shouldn't be taking place
in the CometActor. Your search should be taking place on other
threads/actors which then report their status back to the CometActor.
Not trying to be a wise guy. I actually have a number of VCs lined up to
look at my app. Overall I am very glad to be using Lift. On the Comet alone
it save me a LOT of time.
Of course, I have a lot to learn.
On Mon, Oct 5, 2009 at 3:08 PM, David Pollak
feeder.of.the.be...@gmail.com wrote:
On Mon, Oct 5, 2009 at 12:06 PM, Jack Widman jack.wid...@gmail.comwrote:
Because when the users searches on a new keyword, the actors that were
processing the results for the last keyword are still processing (some of
them). But I can just send each of those a message to stop processing, no?
No problem with that, right?
Sure... send them a message that says tell all your jobs to stop. This
has nothing to do with the CometActor lifecycle. It is all your application
level stuff.
On Mon, Oct 5, 2009 at 3:02 PM, David Pollak
feeder.of.the.be...@gmail.com wrote:
On Mon, Oct 5, 2009 at 11:53 AM, Jack Widman jack.wid...@gmail.comwrote:
In my app, when the user is done searching on one keyword, they click a
link which takes them back to the main search page. Thats the time when I
wanted the CometActor to stop. Otherwise there will be too many threads
floating around and performance will suffer.
Why? Actors do not consume threads, they consume memory unless they are
actively processing a message.
On Mon, Oct 5, 2009 at 2:50 PM, David Pollak
feeder.of.the.be...@gmail.com wrote:
On Mon, Oct 5, 2009 at 11:45 AM, Jack Widman
jack.wid...@gmail.comwrote:
Interesting. I will try that. And I won't send any more
ShutDownMessages :)
Though I should add that each CometActor is doing a lot of
processing. So I it would be good if I could shut one down somehow when
the
user searches on a new term. Timeout won't work because there is no way
to
know how long it will take.
Maybe I could just kill all the actors directly that are doing the
processing.
That's going to be even worse. You'll kill something out from under
Lift... it's going to cause a huge pile of pain.
You can remove an Actor from the session and that will cause ShutDown
to be sent to it, but depending on how the Actor was written it's not
going
to stop processing its mailbox.
Bottom line... there's no way to tell if a user is not looking at a
page with an Actor anymore. The best way to deal with that is timing the
Actor out. It's going to take time (your timeout period), but it's the
best
way to do it.
On Mon, Oct 5, 2009 at 2:40 PM, David Pollak
feeder.of.the.be...@gmail.com wrote:
On Mon, Oct 5, 2009 at 10:27 AM, Jack Widman jack.wid...@gmail.com
wrote:
Understood. My intention is to send a ShutDown message to the
CometActor when somebody closes the browser. I need this so that when
they
visit the page in a browser again, the CometActor is 'reset'.
First, there's no way to determine if the browser window is closed.
Second, *DO NOT* send a ShutDown message to the CometActor. This is
an internal Lift piece of housekeeping. If you do this, you will break
stuff. Don't do it. (There is a reason the message is not private,
but it
should not be used for this purpose.)
CometActors can be named:
lift:comet type=Search name={searchString}/
You can then have a separate CometActor for each searchString.
Voila... you get what you want. Now, how do you make then CometActor
go
away when it's not being used anymore?
In your CometActor:
override def lifespan: Box[TimeSpan] = Full(3 minutes)
That means if a CometActor does not appear on a page for 3 minutes,
it's removed from the session. If the named CometActor is requested
again,
a new one will be created.
On Mon, Oct 5, 2009 at 1:18 PM, marius d. marius.dan...@gmail.com
wrote:
HTTP session termination does not equate with browser-close event.
Br's,
Marius
On Oct 5, 3:22 pm, Jack Widman jack.wid...@gmail.com wrote:
Yes, thats what I meant. Thanks
On Mon, Oct 5, 2009 at 4:10 AM, Timothy Perrett
timo...@getintheloop.euwrote:
But you can do it on session termination (which is what you
probably
want):
http://scala-tools.org/mvnsites-snapshots/liftweb/lift-webkit/scalado.
..
Checkout the method:
registerCleanupFunc
Cheers, Tim
On Oct 5, 8:54 am, Viktor Klang viktor.kl...@gmail.com
wrote:
On Mon, Oct 5, 2009 at 6:50 AM, jack jack.wid...@gmail.com
[Lift] Re: execute code when browser is closed
Sorry if this is a dumb question but in lift:comet type=Search
name={searchString}/, what is searchString? This is in an html file. I am
obviously missing something.
On Mon, Oct 5, 2009 at 2:40 PM, David Pollak
feeder.of.the.be...@gmail.comwrote:
On Mon, Oct 5, 2009 at 10:27 AM, Jack Widman jack.wid...@gmail.comwrote:
Understood. My intention is to send a ShutDown message to the CometActor
when somebody closes the browser. I need this so that when they visit the
page in a browser again, the CometActor is 'reset'.
First, there's no way to determine if the browser window is closed.
Second, *DO NOT* send a ShutDown message to the CometActor. This is an
internal Lift piece of housekeeping. If you do this, you will break stuff.
Don't do it. (There is a reason the message is not private, but it should
not be used for this purpose.)
CometActors can be named:
lift:comet type=Search name={searchString}/
You can then have a separate CometActor for each searchString. Voila...
you get what you want. Now, how do you make then CometActor go away when
it's not being used anymore?
In your CometActor:
override def lifespan: Box[TimeSpan] = Full(3 minutes)
That means if a CometActor does not appear on a page for 3 minutes, it's
removed from the session. If the named CometActor is requested again, a new
one will be created.
On Mon, Oct 5, 2009 at 1:18 PM, marius d. marius.dan...@gmail.comwrote:
HTTP session termination does not equate with browser-close event.
Br's,
Marius
On Oct 5, 3:22 pm, Jack Widman jack.wid...@gmail.com wrote:
Yes, thats what I meant. Thanks
On Mon, Oct 5, 2009 at 4:10 AM, Timothy Perrett
timo...@getintheloop.euwrote:
But you can do it on session termination (which is what you probably
want):
http://scala-tools.org/mvnsites-snapshots/liftweb/lift-webkit/scalado...
Checkout the method:
registerCleanupFunc
Cheers, Tim
On Oct 5, 8:54 am, Viktor Klang viktor.kl...@gmail.com wrote:
On Mon, Oct 5, 2009 at 6:50 AM, jack jack.wid...@gmail.com
wrote:
I would like to call a function when the browser is closed. How
do I
do this?
You cannot reliably do this.
--
Viktor Klang
Blog: klangism.blogspot.com
Twttr: viktorklang
Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
SoftPub founder:http://groups.google.com/group/softpub
--
Jack
--
Jack
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Surf the harmonics
--
Jack
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
For more options, visit this group at
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-~--~~~~--~~--~--~---
[Lift] Re: execute code when browser is closed
i guess you meant put the snippet right in the CometActor. Ok. Now I'm
getting it.
On Oct 5, 11:46 pm, Jack Widman jack.wid...@gmail.com wrote:
Sorry if this is a dumb question but in lift:comet type=Search
name={searchString}/, what is searchString? This is in an html file. I am
obviously missing something.
On Mon, Oct 5, 2009 at 2:40 PM, David Pollak
feeder.of.the.be...@gmail.comwrote:
On Mon, Oct 5, 2009 at 10:27 AM, Jack Widman jack.wid...@gmail.comwrote:
Understood. My intention is to send a ShutDown message to the CometActor
when somebody closes the browser. I need this so that when they visit the
page in a browser again, the CometActor is 'reset'.
First, there's no way to determine if the browser window is closed.
Second, *DO NOT* send a ShutDown message to the CometActor. This is an
internal Lift piece of housekeeping. If you do this, you will break stuff.
Don't do it. (There is a reason the message is not private, but it should
not be used for this purpose.)
CometActors can be named:
lift:comet type=Search name={searchString}/
You can then have a separate CometActor for each searchString. Voila...
you get what you want. Now, how do you make then CometActor go away when
it's not being used anymore?
In your CometActor:
override def lifespan: Box[TimeSpan] = Full(3 minutes)
That means if a CometActor does not appear on a page for 3 minutes, it's
removed from the session. If the named CometActor is requested again, a new
one will be created.
On Mon, Oct 5, 2009 at 1:18 PM, marius d. marius.dan...@gmail.comwrote:
HTTP session termination does not equate with browser-close event.
Br's,
Marius
On Oct 5, 3:22 pm, Jack Widman jack.wid...@gmail.com wrote:
Yes, thats what I meant. Thanks
On Mon, Oct 5, 2009 at 4:10 AM, Timothy Perrett
timo...@getintheloop.euwrote:
But you can do it on session termination (which is what you probably
want):
http://scala-tools.org/mvnsites-snapshots/liftweb/lift-webkit/scalado...
Checkout the method:
registerCleanupFunc
Cheers, Tim
On Oct 5, 8:54 am, Viktor Klang viktor.kl...@gmail.com wrote:
On Mon, Oct 5, 2009 at 6:50 AM, jack jack.wid...@gmail.com
wrote:
I would like to call a function when the browser is closed. How
do I
do this?
You cannot reliably do this.
--
Viktor Klang
Blog: klangism.blogspot.com
Twttr: viktorklang
Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
SoftPub founder:http://groups.google.com/group/softpub
--
Jack
--
Jack
--
Lift, the simply functional web frameworkhttp://liftweb.net
Beginning Scalahttp://www.apress.com/book/view/1430219890
Follow me:http://twitter.com/dpp
Surf the harmonics
--
Jack
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/liftweb?hl=en
-~--~~~~--~~--~--~---
[Lift] Re: execute code when browser is closed
I guess you could generate the comet tag or attribute from a snippet...
-
Jack Widmanjack.wid...@gmail.com wrote:
Sorry if this is a dumb question but in lift:comet type=Search
name={searchString}/, what is searchString? This is in an html file. I am
obviously missing something.
On Mon, Oct 5, 2009 at 2:40 PM, David Pollak
feeder.of.the.be...@gmail.comwrote:
On Mon, Oct 5, 2009 at 10:27 AM, Jack Widman jack.wid...@gmail.comwrote:
Understood. My intention is to send a ShutDown message to the CometActor
when somebody closes the browser. I need this so that when they visit the
page in a browser again, the CometActor is 'reset'.
First, there's no way to determine if the browser window is closed.
Second, *DO NOT* send a ShutDown message to the CometActor. This is an
internal Lift piece of housekeeping. If you do this, you will break stuff.
Don't do it. (There is a reason the message is not private, but it should
not be used for this purpose.)
CometActors can be named:
lift:comet type=Search name={searchString}/
You can then have a separate CometActor for each searchString. Voila...
you get what you want. Now, how do you make then CometActor go away when
it's not being used anymore?
In your CometActor:
override def lifespan: Box[TimeSpan] = Full(3 minutes)
That means if a CometActor does not appear on a page for 3 minutes, it's
removed from the session. If the named CometActor is requested again, a new
one will be created.
On Mon, Oct 5, 2009 at 1:18 PM, marius d. marius.dan...@gmail.comwrote:
HTTP session termination does not equate with browser-close event.
Br's,
Marius
On Oct 5, 3:22 pm, Jack Widman jack.wid...@gmail.com wrote:
Yes, thats what I meant. Thanks
On Mon, Oct 5, 2009 at 4:10 AM, Timothy Perrett
timo...@getintheloop.euwrote:
But you can do it on session termination (which is what you probably
want):
http://scala-tools.org/mvnsites-snapshots/liftweb/lift-webkit/scalado...
Checkout the method:
registerCleanupFunc
Cheers, Tim
On Oct 5, 8:54 am, Viktor Klang viktor.kl...@gmail.com wrote:
On Mon, Oct 5, 2009 at 6:50 AM, jack jack.wid...@gmail.com
wrote:
I would like to call a function when the browser is closed. How
do I
do this?
You cannot reliably do this.
--
Viktor Klang
Blog: klangism.blogspot.com
Twttr: viktorklang
Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
SoftPub founder:http://groups.google.com/group/softpub
--
Jack
--
Jack
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Surf the harmonics
--
Jack
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/liftweb?hl=en
-~--~~~~--~~--~--~---
[Lift] Re: execute code when browser is closed
What do you mean?
-
jackjack.wid...@gmail.com wrote:
i guess you meant put the snippet right in the CometActor. Ok. Now I'm
getting it.
On Oct 5, 11:46 pm, Jack Widman jack.wid...@gmail.com wrote:
Sorry if this is a dumb question but in lift:comet type=Search
name={searchString}/, what is searchString? This is in an html file. I am
obviously missing something.
On Mon, Oct 5, 2009 at 2:40 PM, David Pollak
feeder.of.the.be...@gmail.comwrote:
On Mon, Oct 5, 2009 at 10:27 AM, Jack Widman jack.wid...@gmail.comwrote:
Understood. My intention is to send a ShutDown message to the CometActor
when somebody closes the browser. I need this so that when they visit the
page in a browser again, the CometActor is 'reset'.
First, there's no way to determine if the browser window is closed.
Second, *DO NOT* send a ShutDown message to the CometActor. This is an
internal Lift piece of housekeeping. If you do this, you will break stuff.
Don't do it. (There is a reason the message is not private, but it should
not be used for this purpose.)
CometActors can be named:
lift:comet type=Search name={searchString}/
You can then have a separate CometActor for each searchString. Voila...
you get what you want. Now, how do you make then CometActor go away when
it's not being used anymore?
In your CometActor:
override def lifespan: Box[TimeSpan] = Full(3 minutes)
That means if a CometActor does not appear on a page for 3 minutes, it's
removed from the session. If the named CometActor is requested again, a new
one will be created.
On Mon, Oct 5, 2009 at 1:18 PM, marius d. marius.dan...@gmail.comwrote:
HTTP session termination does not equate with browser-close event.
Br's,
Marius
On Oct 5, 3:22 pm, Jack Widman jack.wid...@gmail.com wrote:
Yes, thats what I meant. Thanks
On Mon, Oct 5, 2009 at 4:10 AM, Timothy Perrett
timo...@getintheloop.euwrote:
But you can do it on session termination (which is what you probably
want):
http://scala-tools.org/mvnsites-snapshots/liftweb/lift-webkit/scalado...
Checkout the method:
registerCleanupFunc
Cheers, Tim
On Oct 5, 8:54 am, Viktor Klang viktor.kl...@gmail.com wrote:
On Mon, Oct 5, 2009 at 6:50 AM, jack jack.wid...@gmail.com
wrote:
I would like to call a function when the browser is closed. How
do I
do this?
You cannot reliably do this.
--
Viktor Klang
Blog: klangism.blogspot.com
Twttr: viktorklang
Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
SoftPub founder:http://groups.google.com/group/softpub
--
Jack
--
Jack
--
Lift, the simply functional web frameworkhttp://liftweb.net
Beginning Scalahttp://www.apress.com/book/view/1430219890
Follow me:http://twitter.com/dpp
Surf the harmonics
--
Jack
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/liftweb?hl=en
-~--~~~~--~~--~--~---
[Lift] Re: execute code when browser is closed
Let me start again. Maybe I am misunderstanding when Comet should be
used. In my application, people search for web pages. I do a lot of
processing for each resulting page. First I just display the links and
then as the processing is finished, the links on the page are
automatically modified with the data I just found for each link. This
is all working fine.
But, the session is being shared among all users so if I make one
search in one browser, and then make another search from another
browser, I get the results from the first browser.
David suggested I name each CometActor differently. That is not
working, though maybe I am not doing it right.
On Oct 6, 12:01 am, Naftoli Gugenheim naftoli...@gmail.com wrote:
What do you mean?
-
jackjack.wid...@gmail.com wrote:
i guess you meant put the snippet right in the CometActor. Ok. Now I'm
getting it.
On Oct 5, 11:46 pm, Jack Widman jack.wid...@gmail.com wrote:
Sorry if this is a dumb question but in lift:comet type=Search
name={searchString}/, what is searchString? This is in an html file. I am
obviously missing something.
On Mon, Oct 5, 2009 at 2:40 PM, David Pollak
feeder.of.the.be...@gmail.comwrote:
On Mon, Oct 5, 2009 at 10:27 AM, Jack Widman jack.wid...@gmail.comwrote:
Understood. My intention is to send a ShutDown message to the CometActor
when somebody closes the browser. I need this so that when they visit the
page in a browser again, the CometActor is 'reset'.
First, there's no way to determine if the browser window is closed.
Second, *DO NOT* send a ShutDown message to the CometActor. This is an
internal Lift piece of housekeeping. If you do this, you will break
stuff.
Don't do it. (There is a reason the message is not private, but it
should
not be used for this purpose.)
CometActors can be named:
lift:comet type=Search name={searchString}/
You can then have a separate CometActor for each searchString. Voila...
you get what you want. Now, how do you make then CometActor go away when
it's not being used anymore?
In your CometActor:
override def lifespan: Box[TimeSpan] = Full(3 minutes)
That means if a CometActor does not appear on a page for 3 minutes, it's
removed from the session. If the named CometActor is requested again, a
new
one will be created.
On Mon, Oct 5, 2009 at 1:18 PM, marius d. marius.dan...@gmail.comwrote:
HTTP session termination does not equate with browser-close event.
Br's,
Marius
On Oct 5, 3:22 pm, Jack Widman jack.wid...@gmail.com wrote:
Yes, thats what I meant. Thanks
On Mon, Oct 5, 2009 at 4:10 AM, Timothy Perrett
timo...@getintheloop.euwrote:
But you can do it on session termination (which is what you probably
want):
http://scala-tools.org/mvnsites-snapshots/liftweb/lift-webkit/scalado...
Checkout the method:
registerCleanupFunc
Cheers, Tim
On Oct 5, 8:54 am, Viktor Klang viktor.kl...@gmail.com wrote:
On Mon, Oct 5, 2009 at 6:50 AM, jack jack.wid...@gmail.com
wrote:
I would like to call a function when the browser is closed. How
do I
do this?
You cannot reliably do this.
--
Viktor Klang
Blog: klangism.blogspot.com
Twttr: viktorklang
Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
SoftPub founder:http://groups.google.com/group/softpub
--
Jack
--
Jack
--
Lift, the simply functional web frameworkhttp://liftweb.net
Beginning Scalahttp://www.apress.com/book/view/1430219890
Follow me:http://twitter.com/dpp
Surf the harmonics
--
Jack
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/liftweb?hl=en
-~--~~~~--~~--~--~---
[Lift] Re: execute code when browser is closed
You are correct that Comet is a way to update information after the page is
loaded. I think there's a simpler way using ajax, but I haven't explored those
areas of Lift yet. But meanwhile you need to have the xml specifying the comet
actor be dynamic. So you need to have that xml be generated by a snippet. A
snippet is an XML to XML function.
-
jackjack.wid...@gmail.com wrote:
Let me start again. Maybe I am misunderstanding when Comet should be
used. In my application, people search for web pages. I do a lot of
processing for each resulting page. First I just display the links and
then as the processing is finished, the links on the page are
automatically modified with the data I just found for each link. This
is all working fine.
But, the session is being shared among all users so if I make one
search in one browser, and then make another search from another
browser, I get the results from the first browser.
David suggested I name each CometActor differently. That is not
working, though maybe I am not doing it right.
On Oct 6, 12:01 am, Naftoli Gugenheim naftoli...@gmail.com wrote:
What do you mean?
-
jackjack.wid...@gmail.com wrote:
i guess you meant put the snippet right in the CometActor. Ok. Now I'm
getting it.
On Oct 5, 11:46 pm, Jack Widman jack.wid...@gmail.com wrote:
Sorry if this is a dumb question but in lift:comet type=Search
name={searchString}/, what is searchString? This is in an html file. I am
obviously missing something.
On Mon, Oct 5, 2009 at 2:40 PM, David Pollak
feeder.of.the.be...@gmail.comwrote:
On Mon, Oct 5, 2009 at 10:27 AM, Jack Widman jack.wid...@gmail.comwrote:
Understood. My intention is to send a ShutDown message to the CometActor
when somebody closes the browser. I need this so that when they visit the
page in a browser again, the CometActor is 'reset'.
First, there's no way to determine if the browser window is closed.
Second, *DO NOT* send a ShutDown message to the CometActor. This is an
internal Lift piece of housekeeping. If you do this, you will break
stuff.
Don't do it. (There is a reason the message is not private, but it
should
not be used for this purpose.)
CometActors can be named:
lift:comet type=Search name={searchString}/
You can then have a separate CometActor for each searchString. Voila...
you get what you want. Now, how do you make then CometActor go away when
it's not being used anymore?
In your CometActor:
override def lifespan: Box[TimeSpan] = Full(3 minutes)
That means if a CometActor does not appear on a page for 3 minutes, it's
removed from the session. If the named CometActor is requested again, a
new
one will be created.
On Mon, Oct 5, 2009 at 1:18 PM, marius d. marius.dan...@gmail.comwrote:
HTTP session termination does not equate with browser-close event.
Br's,
Marius
On Oct 5, 3:22 pm, Jack Widman jack.wid...@gmail.com wrote:
Yes, thats what I meant. Thanks
On Mon, Oct 5, 2009 at 4:10 AM, Timothy Perrett
timo...@getintheloop.euwrote:
But you can do it on session termination (which is what you probably
want):
http://scala-tools.org/mvnsites-snapshots/liftweb/lift-webkit/scalado...
Checkout the method:
registerCleanupFunc
Cheers, Tim
On Oct 5, 8:54 am, Viktor Klang viktor.kl...@gmail.com wrote:
On Mon, Oct 5, 2009 at 6:50 AM, jack jack.wid...@gmail.com
wrote:
I would like to call a function when the browser is closed. How
do I
do this?
You cannot reliably do this.
--
Viktor Klang
Blog: klangism.blogspot.com
Twttr: viktorklang
Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
SoftPub founder:http://groups.google.com/group/softpub
--
Jack
--
Jack
--
Lift, the simply functional web frameworkhttp://liftweb.net
Beginning Scalahttp://www.apress.com/book/view/1430219890
Follow me:http://twitter.com/dpp
Surf the harmonics
--
Jack
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[Lift] Re: execute code when browser is closed
So I am using a snippet like this
def go:NodeSeq = {
var term:String = S.param(term).openOr()
lift:surround with=default at=content
lift:comet type=JoopComet name={term}
auth:joop/auth:joop
/lift:comet
/lift:surround
}
And the term is indeed different each time. But I am still getting the same
results from two different browsers with different terms.
On Tue, Oct 6, 2009 at 12:18 AM, Naftoli Gugenheim naftoli...@gmail.comwrote:
You are correct that Comet is a way to update information after the page is
loaded. I think there's a simpler way using ajax, but I haven't explored
those areas of Lift yet. But meanwhile you need to have the xml specifying
the comet actor be dynamic. So you need to have that xml be generated by a
snippet. A snippet is an XML to XML function.
-
jackjack.wid...@gmail.com wrote:
Let me start again. Maybe I am misunderstanding when Comet should be
used. In my application, people search for web pages. I do a lot of
processing for each resulting page. First I just display the links and
then as the processing is finished, the links on the page are
automatically modified with the data I just found for each link. This
is all working fine.
But, the session is being shared among all users so if I make one
search in one browser, and then make another search from another
browser, I get the results from the first browser.
David suggested I name each CometActor differently. That is not
working, though maybe I am not doing it right.
On Oct 6, 12:01 am, Naftoli Gugenheim naftoli...@gmail.com wrote:
What do you mean?
-
jackjack.wid...@gmail.com wrote:
i guess you meant put the snippet right in the CometActor. Ok. Now I'm
getting it.
On Oct 5, 11:46 pm, Jack Widman jack.wid...@gmail.com wrote:
Sorry if this is a dumb question but in lift:comet type=Search
name={searchString}/, what is searchString? This is in an html file. I
am
obviously missing something.
On Mon, Oct 5, 2009 at 2:40 PM, David Pollak
feeder.of.the.be...@gmail.comwrote:
On Mon, Oct 5, 2009 at 10:27 AM, Jack Widman jack.wid...@gmail.com
wrote:
Understood. My intention is to send a ShutDown message to the
CometActor
when somebody closes the browser. I need this so that when they
visit the
page in a browser again, the CometActor is 'reset'.
First, there's no way to determine if the browser window is closed.
Second, *DO NOT* send a ShutDown message to the CometActor. This is
an
internal Lift piece of housekeeping. If you do this, you will break
stuff.
Don't do it. (There is a reason the message is not private, but it
should
not be used for this purpose.)
CometActors can be named:
lift:comet type=Search name={searchString}/
You can then have a separate CometActor for each searchString.
Voila...
you get what you want. Now, how do you make then CometActor go away
when
it's not being used anymore?
In your CometActor:
override def lifespan: Box[TimeSpan] = Full(3 minutes)
That means if a CometActor does not appear on a page for 3 minutes,
it's
removed from the session. If the named CometActor is requested
again, a new
one will be created.
On Mon, Oct 5, 2009 at 1:18 PM, marius d. marius.dan...@gmail.com
wrote:
HTTP session termination does not equate with browser-close event.
Br's,
Marius
On Oct 5, 3:22 pm, Jack Widman jack.wid...@gmail.com wrote:
Yes, thats what I meant. Thanks
On Mon, Oct 5, 2009 at 4:10 AM, Timothy Perrett
timo...@getintheloop.euwrote:
But you can do it on session termination (which is what you
probably
want):
http://scala-tools.org/mvnsites-snapshots/liftweb/lift-webkit/scalado...
Checkout the method:
registerCleanupFunc
Cheers, Tim
On Oct 5, 8:54 am, Viktor Klang viktor.kl...@gmail.com
wrote:
On Mon, Oct 5, 2009 at 6:50 AM, jack jack.wid...@gmail.com
wrote:
I would like to call a function when the browser is closed.
How
do I
do this?
You cannot reliably do this.
--
Viktor Klang
Blog: klangism.blogspot.com
Twttr: viktorklang
Lift Committer - liftweb.com
AKKA Committer - akkasource.org
Cassidy - github.com/viktorklang/Cassidy.git
SoftPub founder:http://groups.google.com/group/softpub
--
Jack
--
Jack
--
Lift, the simply functional web frameworkhttp://liftweb.net
Beginning Scalahttp://www.apress.com/book/view/1430219890
Follow me:http://twitter.com/dpp
Surf the harmonics
--
Jack
--
Jack
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