Re: Get return value of ajax event in Wicket 6.9.1

[Daniela L]

Hi,
now everything works perfect,
thank you I am so happy.
Best Regards
Daniela


2013/11/14 Martin Grigorov 

> Hi,
>
> mySubmitButton.add(AttributeAppender.append("onclick", "window.dontAsk =
> true; return true;"))
>
> response.render(new
> OnDomReadyHeaderItem("window.onbeforeunload = function (e) {"
>   + "if (!window.dontAsk) {" +
>   + "var message = 'Your confirmation message goes
> here.',"
>   + "e = e || window.event;" + "if (e) {"
>   + "e.returnValue = message;" + "}" + "return
> message;"
>+ "}"
> + "};"));
>
>
> On Wed, Nov 13, 2013 at 4:12 PM, Daniela L  wrote:
>
> > Hi,
> > I am sorry I don't get it.
> > How and when to set the JS variable?
> > Like this:
> > mySubmitButton.add(new AjaxEventBehavior("onclick") {
> > @Override
> > protected void onEvent(AjaxRequestTarget target) {
> > AjaxRequestAttributes ajaxRequestAttributes = new
> > AjaxRequestAttributes();
> > CharSequence dynamicExtraParameters = "var enableEvent =
> > false;";
> >
> >
> >
> >
> ajaxRequestAttributes.getDynamicExtraParameters().add(dynamicExtraParameters)
> >
> > pageExitWarningBehavior.updateAjaxAttributes(ajaxRequestAttributes);
> > }
> > });
> >
> > And which onBeforeRender, the one of the TextField?
> > Best Regards
> > Daniela
> >
> >
> > 2013/11/13 Martin Grigorov 
> >
> > > Hi,
> > >
> > > #onSubmit() would be called after the user agrees to leave the page.
> > >
> > > You can set some JS variable/flag when the submit button is used and
> > > depending on this flag do not ask for confirmation in onbeforerender.
> > >
> > >
> > > On Wed, Nov 13, 2013 at 10:02 AM, Daniela L 
> > wrote:
> > >
> > > > Hi,
> > > > I have another problem regarding this question.
> > > > Now every time the page is left the message  "Do you want to leave
> the
> > > > page" is popping up,
> > > > but when the user correctly fills the form on the page and hits the
> > > submit
> > > > button
> > > > he should be redirected to another page showing the result of his
> > input.
> > > > I have tryed this to remove the behavior for a correct submit but the
> > > > message is still popping up:
> > > >
> > > > mySubmitButton = new Button("mySubmitButton ") {
> > > >
> > > > @Override
> > > > public void onSubmit() {
> > > > try {
> > > > myTextField.remove(pageExitWarningBehavior);
> > > > //tryed both
> > > > //pageExitWarningBehavior.detach(myTextField);
> > > >}
> > > > };
> > > >
> > > >
> > > > 2013/11/12 Daniela L 
> > > >
> > > > > Hi,
> > > > > thank you so much for your help this works fantastic.
> > > > > I am so happy I was trying around with this for days :-)
> > > > >
> > > > >
> > > > > 2013/11/11 Martin Grigorov 
> > > > >
> > > > >> respond() is the callback method that Wicket will notify.
> > > > >> But you need to trigger an Ajax call first. This is done with the
> > > Wicket
> > > > >> Ajax API: Wicket.Ajax.get(...).
> > > > >>
> > > > >> Just try with the line I've added in your JS code
> > > > >>
> > > > >>
> > > > >> On Mon, Nov 11, 2013 at 4:04 PM, Daniela L 
> > > > wrote:
> > > > >>
> > > > >> > I thought adding respond was the ajax call to the server, am I
> > > wrong?
> > > > >> > I didn't work much with ajax, i am sorry
> > > > >> >
> > > > >> >
> > > > >> > 2013/11/11 Martin Grigorov 
> > > > >> >
> > > > >> > > Did you do what I suggested you ?
> > > > >> > >
> > > > >> > >
> > > > >> > > On Mon, Nov 11, 2013 at 3:49 PM, Daniela L <
> > danigal...@gmail.com>
> > > > >> wrote:
> > > > >> > >
> > > > >> > > > Hi,
> > > > >> > > >
> > > > >> > > > I have tryed to change to AbstractDefaultAjaxBehavior like I
> > > > >> described
> > > > >> > > > below, but respond is never called. What am I doing wrong?
> > > > >> > > >
> > > > >> > > >
> > > > >> > > > Hi,
> > > > >> > > >
> > > > >> > > > as far as I have understood this can only be achieved, if I
> > > > subclass
> > > > >> > > > AbstractDefaultAjaxBehavior like this?
> > > > >> > > >
> > > > >> > > > public class PageExitWarningBehavior extends
> > > > >> > AbstractDefaultAjaxBehavior
> > > > >> > >  {
> > > > >> > > > @Override
> > > > >> > > > protected void respond(AjaxRequestTarget target) {
> > > > >> > > >
> > > > >> > > >
> > AppointmentSession.get().releaseSavedBlockedFreeCalendarEvent();
> > > > >> > > >   }
> > > > >> > > >
> > > > >> > > >
> > > > >> > > > Hi,
> > > > >> > > >
> > > > >> > > > You need to make an Ajax call to the server.
> > > > >> > > >
> > > > >> > > >
> > > > >> > > > On Mon, Nov 11, 2013 at 2:10 PM, Daniela L <
> > > danigal...@gmail.com>
> > > > >> > > >  <
> > > > danigal...@gmail.com>
> > > > >> > > > wrote:
> > > > >> > > >
> > > > >> > > >
> > > > >> > > > Hi,
> > > > >> > > > this is my first question, so i hope I get everything right.
> > > >

Re: Get return value of ajax event in Wicket 6.9.1

[Martin Grigorov]

Hi,

mySubmitButton.add(AttributeAppender.append("onclick", "window.dontAsk =
true; return true;"))

response.render(new
OnDomReadyHeaderItem("window.onbeforeunload = function (e) {"
  + "if (!window.dontAsk) {" +
  + "var message = 'Your confirmation message goes
here.',"
  + "e = e || window.event;" + "if (e) {"
  + "e.returnValue = message;" + "}" + "return message;"
   + "}"
+ "};"));


On Wed, Nov 13, 2013 at 4:12 PM, Daniela L  wrote:

> Hi,
> I am sorry I don't get it.
> How and when to set the JS variable?
> Like this:
> mySubmitButton.add(new AjaxEventBehavior("onclick") {
> @Override
> protected void onEvent(AjaxRequestTarget target) {
> AjaxRequestAttributes ajaxRequestAttributes = new
> AjaxRequestAttributes();
> CharSequence dynamicExtraParameters = "var enableEvent =
> false;";
>
>
>
> ajaxRequestAttributes.getDynamicExtraParameters().add(dynamicExtraParameters)
>
> pageExitWarningBehavior.updateAjaxAttributes(ajaxRequestAttributes);
> }
> });
>
> And which onBeforeRender, the one of the TextField?
> Best Regards
> Daniela
>
>
> 2013/11/13 Martin Grigorov 
>
> > Hi,
> >
> > #onSubmit() would be called after the user agrees to leave the page.
> >
> > You can set some JS variable/flag when the submit button is used and
> > depending on this flag do not ask for confirmation in onbeforerender.
> >
> >
> > On Wed, Nov 13, 2013 at 10:02 AM, Daniela L 
> wrote:
> >
> > > Hi,
> > > I have another problem regarding this question.
> > > Now every time the page is left the message  "Do you want to leave the
> > > page" is popping up,
> > > but when the user correctly fills the form on the page and hits the
> > submit
> > > button
> > > he should be redirected to another page showing the result of his
> input.
> > > I have tryed this to remove the behavior for a correct submit but the
> > > message is still popping up:
> > >
> > > mySubmitButton = new Button("mySubmitButton ") {
> > >
> > > @Override
> > > public void onSubmit() {
> > > try {
> > > myTextField.remove(pageExitWarningBehavior);
> > > //tryed both
> > > //pageExitWarningBehavior.detach(myTextField);
> > >}
> > > };
> > >
> > >
> > > 2013/11/12 Daniela L 
> > >
> > > > Hi,
> > > > thank you so much for your help this works fantastic.
> > > > I am so happy I was trying around with this for days :-)
> > > >
> > > >
> > > > 2013/11/11 Martin Grigorov 
> > > >
> > > >> respond() is the callback method that Wicket will notify.
> > > >> But you need to trigger an Ajax call first. This is done with the
> > Wicket
> > > >> Ajax API: Wicket.Ajax.get(...).
> > > >>
> > > >> Just try with the line I've added in your JS code
> > > >>
> > > >>
> > > >> On Mon, Nov 11, 2013 at 4:04 PM, Daniela L 
> > > wrote:
> > > >>
> > > >> > I thought adding respond was the ajax call to the server, am I
> > wrong?
> > > >> > I didn't work much with ajax, i am sorry
> > > >> >
> > > >> >
> > > >> > 2013/11/11 Martin Grigorov 
> > > >> >
> > > >> > > Did you do what I suggested you ?
> > > >> > >
> > > >> > >
> > > >> > > On Mon, Nov 11, 2013 at 3:49 PM, Daniela L <
> danigal...@gmail.com>
> > > >> wrote:
> > > >> > >
> > > >> > > > Hi,
> > > >> > > >
> > > >> > > > I have tryed to change to AbstractDefaultAjaxBehavior like I
> > > >> described
> > > >> > > > below, but respond is never called. What am I doing wrong?
> > > >> > > >
> > > >> > > >
> > > >> > > > Hi,
> > > >> > > >
> > > >> > > > as far as I have understood this can only be achieved, if I
> > > subclass
> > > >> > > > AbstractDefaultAjaxBehavior like this?
> > > >> > > >
> > > >> > > > public class PageExitWarningBehavior extends
> > > >> > AbstractDefaultAjaxBehavior
> > > >> > >  {
> > > >> > > > @Override
> > > >> > > > protected void respond(AjaxRequestTarget target) {
> > > >> > > >
> > > >> > > >
> AppointmentSession.get().releaseSavedBlockedFreeCalendarEvent();
> > > >> > > >   }
> > > >> > > >
> > > >> > > >
> > > >> > > > Hi,
> > > >> > > >
> > > >> > > > You need to make an Ajax call to the server.
> > > >> > > >
> > > >> > > >
> > > >> > > > On Mon, Nov 11, 2013 at 2:10 PM, Daniela L <
> > danigal...@gmail.com>
> > > >> > > >  <
> > > danigal...@gmail.com>
> > > >> > > > wrote:
> > > >> > > >
> > > >> > > >
> > > >> > > > Hi,
> > > >> > > > this is my first question, so i hope I get everything right.
> > > >> > > >
> > > >> > > > I am trying to catch the event of the user closing the browser
> > > >> window
> > > >> > in
> > > >> > > > wicket.
> > > >> > > >
> > > >> > > > I followed this example:
> > > >> > > >
> > > >> > > >
> > > >> > >
> > > >> >
> > > >>
> > >
> >
> http://stackoverflow.com/questions/16527463/call-java-component-from-javascript-and-retreive-value
> > > >> > > >
> > > >> > > > and I managed to g

Re: Get return value of ajax event in Wicket 6.9.1

[Daniela L]

Hi,
I am sorry I don't get it.
How and when to set the JS variable?
Like this:
mySubmitButton.add(new AjaxEventBehavior("onclick") {
@Override
protected void onEvent(AjaxRequestTarget target) {
AjaxRequestAttributes ajaxRequestAttributes = new
AjaxRequestAttributes();
CharSequence dynamicExtraParameters = "var enableEvent =
false;";


ajaxRequestAttributes.getDynamicExtraParameters().add(dynamicExtraParameters)

pageExitWarningBehavior.updateAjaxAttributes(ajaxRequestAttributes);
}
});

And which onBeforeRender, the one of the TextField?
Best Regards
Daniela


2013/11/13 Martin Grigorov 

> Hi,
>
> #onSubmit() would be called after the user agrees to leave the page.
>
> You can set some JS variable/flag when the submit button is used and
> depending on this flag do not ask for confirmation in onbeforerender.
>
>
> On Wed, Nov 13, 2013 at 10:02 AM, Daniela L  wrote:
>
> > Hi,
> > I have another problem regarding this question.
> > Now every time the page is left the message  "Do you want to leave the
> > page" is popping up,
> > but when the user correctly fills the form on the page and hits the
> submit
> > button
> > he should be redirected to another page showing the result of his input.
> > I have tryed this to remove the behavior for a correct submit but the
> > message is still popping up:
> >
> > mySubmitButton = new Button("mySubmitButton ") {
> >
> > @Override
> > public void onSubmit() {
> > try {
> > myTextField.remove(pageExitWarningBehavior);
> > //tryed both
> > //pageExitWarningBehavior.detach(myTextField);
> >}
> > };
> >
> >
> > 2013/11/12 Daniela L 
> >
> > > Hi,
> > > thank you so much for your help this works fantastic.
> > > I am so happy I was trying around with this for days :-)
> > >
> > >
> > > 2013/11/11 Martin Grigorov 
> > >
> > >> respond() is the callback method that Wicket will notify.
> > >> But you need to trigger an Ajax call first. This is done with the
> Wicket
> > >> Ajax API: Wicket.Ajax.get(...).
> > >>
> > >> Just try with the line I've added in your JS code
> > >>
> > >>
> > >> On Mon, Nov 11, 2013 at 4:04 PM, Daniela L 
> > wrote:
> > >>
> > >> > I thought adding respond was the ajax call to the server, am I
> wrong?
> > >> > I didn't work much with ajax, i am sorry
> > >> >
> > >> >
> > >> > 2013/11/11 Martin Grigorov 
> > >> >
> > >> > > Did you do what I suggested you ?
> > >> > >
> > >> > >
> > >> > > On Mon, Nov 11, 2013 at 3:49 PM, Daniela L 
> > >> wrote:
> > >> > >
> > >> > > > Hi,
> > >> > > >
> > >> > > > I have tryed to change to AbstractDefaultAjaxBehavior like I
> > >> described
> > >> > > > below, but respond is never called. What am I doing wrong?
> > >> > > >
> > >> > > >
> > >> > > > Hi,
> > >> > > >
> > >> > > > as far as I have understood this can only be achieved, if I
> > subclass
> > >> > > > AbstractDefaultAjaxBehavior like this?
> > >> > > >
> > >> > > > public class PageExitWarningBehavior extends
> > >> > AbstractDefaultAjaxBehavior
> > >> > >  {
> > >> > > > @Override
> > >> > > > protected void respond(AjaxRequestTarget target) {
> > >> > > >
> > >> > > > AppointmentSession.get().releaseSavedBlockedFreeCalendarEvent();
> > >> > > >   }
> > >> > > >
> > >> > > >
> > >> > > > Hi,
> > >> > > >
> > >> > > > You need to make an Ajax call to the server.
> > >> > > >
> > >> > > >
> > >> > > > On Mon, Nov 11, 2013 at 2:10 PM, Daniela L <
> danigal...@gmail.com>
> > >> > > >  <
> > danigal...@gmail.com>
> > >> > > > wrote:
> > >> > > >
> > >> > > >
> > >> > > > Hi,
> > >> > > > this is my first question, so i hope I get everything right.
> > >> > > >
> > >> > > > I am trying to catch the event of the user closing the browser
> > >> window
> > >> > in
> > >> > > > wicket.
> > >> > > >
> > >> > > > I followed this example:
> > >> > > >
> > >> > > >
> > >> > >
> > >> >
> > >>
> >
> http://stackoverflow.com/questions/16527463/call-java-component-from-javascript-and-retreive-value
> > >> > > >
> > >> > > > and I managed to get the example working so the message is
> > >> displayed,
> > >> > > but I
> > >> > > > have no idea how to get the event triggered by the javascript
> > >> function
> > >> > in
> > >> > > > wicket. I need this because when the user closes the browser
> > window
> > >> I
> > >> > > want
> > >> > > > to update some data in my database.
> > >> > > > Here is what I have tryed:
> > >> > > >
> > >> > > >
> > >> > > >  RequiredTextField myTextField = new
> > >> > > > RequiredTextField("myTextField");
> > >> > > >  myTextField.setOutputMarkupPlaceholderTag(true);
> > >> > > >  myTextField.add(new PageExitWarningBehavior(){
> > >> > > > @Override
> > >> > > > public void onEvent(Component component, IEvent
> > >> event)
> > >> > > > {
> > >> > > > //this isn't ever called
> > >> > > >
> M

Re: Get return value of ajax event in Wicket 6.9.1

[Martin Grigorov]

Hi,

#onSubmit() would be called after the user agrees to leave the page.

You can set some JS variable/flag when the submit button is used and
depending on this flag do not ask for confirmation in onbeforerender.


On Wed, Nov 13, 2013 at 10:02 AM, Daniela L  wrote:

> Hi,
> I have another problem regarding this question.
> Now every time the page is left the message  "Do you want to leave the
> page" is popping up,
> but when the user correctly fills the form on the page and hits the submit
> button
> he should be redirected to another page showing the result of his input.
> I have tryed this to remove the behavior for a correct submit but the
> message is still popping up:
>
> mySubmitButton = new Button("mySubmitButton ") {
>
> @Override
> public void onSubmit() {
> try {
> myTextField.remove(pageExitWarningBehavior);
> //tryed both
> //pageExitWarningBehavior.detach(myTextField);
>}
> };
>
>
> 2013/11/12 Daniela L 
>
> > Hi,
> > thank you so much for your help this works fantastic.
> > I am so happy I was trying around with this for days :-)
> >
> >
> > 2013/11/11 Martin Grigorov 
> >
> >> respond() is the callback method that Wicket will notify.
> >> But you need to trigger an Ajax call first. This is done with the Wicket
> >> Ajax API: Wicket.Ajax.get(...).
> >>
> >> Just try with the line I've added in your JS code
> >>
> >>
> >> On Mon, Nov 11, 2013 at 4:04 PM, Daniela L 
> wrote:
> >>
> >> > I thought adding respond was the ajax call to the server, am I wrong?
> >> > I didn't work much with ajax, i am sorry
> >> >
> >> >
> >> > 2013/11/11 Martin Grigorov 
> >> >
> >> > > Did you do what I suggested you ?
> >> > >
> >> > >
> >> > > On Mon, Nov 11, 2013 at 3:49 PM, Daniela L 
> >> wrote:
> >> > >
> >> > > > Hi,
> >> > > >
> >> > > > I have tryed to change to AbstractDefaultAjaxBehavior like I
> >> described
> >> > > > below, but respond is never called. What am I doing wrong?
> >> > > >
> >> > > >
> >> > > > Hi,
> >> > > >
> >> > > > as far as I have understood this can only be achieved, if I
> subclass
> >> > > > AbstractDefaultAjaxBehavior like this?
> >> > > >
> >> > > > public class PageExitWarningBehavior extends
> >> > AbstractDefaultAjaxBehavior
> >> > >  {
> >> > > > @Override
> >> > > > protected void respond(AjaxRequestTarget target) {
> >> > > >
> >> > > > AppointmentSession.get().releaseSavedBlockedFreeCalendarEvent();
> >> > > >   }
> >> > > >
> >> > > >
> >> > > > Hi,
> >> > > >
> >> > > > You need to make an Ajax call to the server.
> >> > > >
> >> > > >
> >> > > > On Mon, Nov 11, 2013 at 2:10 PM, Daniela L 
> >> > > >  <
> danigal...@gmail.com>
> >> > > > wrote:
> >> > > >
> >> > > >
> >> > > > Hi,
> >> > > > this is my first question, so i hope I get everything right.
> >> > > >
> >> > > > I am trying to catch the event of the user closing the browser
> >> window
> >> > in
> >> > > > wicket.
> >> > > >
> >> > > > I followed this example:
> >> > > >
> >> > > >
> >> > >
> >> >
> >>
> http://stackoverflow.com/questions/16527463/call-java-component-from-javascript-and-retreive-value
> >> > > >
> >> > > > and I managed to get the example working so the message is
> >> displayed,
> >> > > but I
> >> > > > have no idea how to get the event triggered by the javascript
> >> function
> >> > in
> >> > > > wicket. I need this because when the user closes the browser
> window
> >> I
> >> > > want
> >> > > > to update some data in my database.
> >> > > > Here is what I have tryed:
> >> > > >
> >> > > >
> >> > > >  RequiredTextField myTextField = new
> >> > > > RequiredTextField("myTextField");
> >> > > >  myTextField.setOutputMarkupPlaceholderTag(true);
> >> > > >  myTextField.add(new PageExitWarningBehavior(){
> >> > > > @Override
> >> > > > public void onEvent(Component component, IEvent
> >> event)
> >> > > > {
> >> > > > //this isn't ever called
> >> > > > MySession.get().releaseBlockedDataFromDatabase();
> >> > > > }
> >> > > > });
> >> > > >
> >> > > > public class PageExitWarningBehavior extends Behavior  {
> >> > > > @Override
> >> > > > public void renderHead(Component component,
> IHeaderResponse
> >> > > > response) {
> >> > > > super.renderHead(component, response);
> >> > > > response.render(new
> >> > > > OnDomReadyHeaderItem("window.onbeforeunload = function (e) {"
> >> > > >
> >> > > >
> >> > > >   + "Wicket.Ajax.get({u:
> '"+getCallbackUrl()+"',
> >> > > async:
> >> > > > false});"
> >> > > >
> >> > > >
> >> > > >   + "var message = 'Your confirmation message goes
> >> > > > here.',"
> >> > > >
> >> > > >   + "e = e || window.event;" + "if (e) {"
> >> > > >
> >> > > >   + "e.returnValue = message;" + "}" + "return
> >> > message;

Re: Get return value of ajax event in Wicket 6.9.1

[Daniela L]

Hi,
I have another problem regarding this question.
Now every time the page is left the message  "Do you want to leave the
page" is popping up,
but when the user correctly fills the form on the page and hits the submit
button
he should be redirected to another page showing the result of his input.
I have tryed this to remove the behavior for a correct submit but the
message is still popping up:

mySubmitButton = new Button("mySubmitButton ") {

@Override
public void onSubmit() {
try {
myTextField.remove(pageExitWarningBehavior);
//tryed both
//pageExitWarningBehavior.detach(myTextField);
   }
};


2013/11/12 Daniela L 

> Hi,
> thank you so much for your help this works fantastic.
> I am so happy I was trying around with this for days :-)
>
>
> 2013/11/11 Martin Grigorov 
>
>> respond() is the callback method that Wicket will notify.
>> But you need to trigger an Ajax call first. This is done with the Wicket
>> Ajax API: Wicket.Ajax.get(...).
>>
>> Just try with the line I've added in your JS code
>>
>>
>> On Mon, Nov 11, 2013 at 4:04 PM, Daniela L  wrote:
>>
>> > I thought adding respond was the ajax call to the server, am I wrong?
>> > I didn't work much with ajax, i am sorry
>> >
>> >
>> > 2013/11/11 Martin Grigorov 
>> >
>> > > Did you do what I suggested you ?
>> > >
>> > >
>> > > On Mon, Nov 11, 2013 at 3:49 PM, Daniela L 
>> wrote:
>> > >
>> > > > Hi,
>> > > >
>> > > > I have tryed to change to AbstractDefaultAjaxBehavior like I
>> described
>> > > > below, but respond is never called. What am I doing wrong?
>> > > >
>> > > >
>> > > > Hi,
>> > > >
>> > > > as far as I have understood this can only be achieved, if I subclass
>> > > > AbstractDefaultAjaxBehavior like this?
>> > > >
>> > > > public class PageExitWarningBehavior extends
>> > AbstractDefaultAjaxBehavior
>> > >  {
>> > > > @Override
>> > > > protected void respond(AjaxRequestTarget target) {
>> > > >
>> > > > AppointmentSession.get().releaseSavedBlockedFreeCalendarEvent();
>> > > >   }
>> > > >
>> > > >
>> > > > Hi,
>> > > >
>> > > > You need to make an Ajax call to the server.
>> > > >
>> > > >
>> > > > On Mon, Nov 11, 2013 at 2:10 PM, Daniela L 
>> > > >  
>> > > > wrote:
>> > > >
>> > > >
>> > > > Hi,
>> > > > this is my first question, so i hope I get everything right.
>> > > >
>> > > > I am trying to catch the event of the user closing the browser
>> window
>> > in
>> > > > wicket.
>> > > >
>> > > > I followed this example:
>> > > >
>> > > >
>> > >
>> >
>> http://stackoverflow.com/questions/16527463/call-java-component-from-javascript-and-retreive-value
>> > > >
>> > > > and I managed to get the example working so the message is
>> displayed,
>> > > but I
>> > > > have no idea how to get the event triggered by the javascript
>> function
>> > in
>> > > > wicket. I need this because when the user closes the browser window
>> I
>> > > want
>> > > > to update some data in my database.
>> > > > Here is what I have tryed:
>> > > >
>> > > >
>> > > >  RequiredTextField myTextField = new
>> > > > RequiredTextField("myTextField");
>> > > >  myTextField.setOutputMarkupPlaceholderTag(true);
>> > > >  myTextField.add(new PageExitWarningBehavior(){
>> > > > @Override
>> > > > public void onEvent(Component component, IEvent
>> event)
>> > > > {
>> > > > //this isn't ever called
>> > > > MySession.get().releaseBlockedDataFromDatabase();
>> > > > }
>> > > > });
>> > > >
>> > > > public class PageExitWarningBehavior extends Behavior  {
>> > > > @Override
>> > > > public void renderHead(Component component, IHeaderResponse
>> > > > response) {
>> > > > super.renderHead(component, response);
>> > > > response.render(new
>> > > > OnDomReadyHeaderItem("window.onbeforeunload = function (e) {"
>> > > >
>> > > >
>> > > >   + "Wicket.Ajax.get({u: '"+getCallbackUrl()+"',
>> > > async:
>> > > > false});"
>> > > >
>> > > >
>> > > >   + "var message = 'Your confirmation message goes
>> > > > here.',"
>> > > >
>> > > >   + "e = e || window.event;" + "if (e) {"
>> > > >
>> > > >   + "e.returnValue = message;" + "}" + "return
>> > message;"
>> > > +
>> > > > "};"));
>> > > > }
>> > > > }
>> > > >
>> > > > What am I missing? Thank you very much in advance
>> > > >
>> > >
>> >
>>
>
>

Re: Get return value of ajax event in Wicket 6.9.1

[Daniela L]

Hi,
thank you so much for your help this works fantastic.
I am so happy I was trying around with this for days :-)


2013/11/11 Martin Grigorov 

> respond() is the callback method that Wicket will notify.
> But you need to trigger an Ajax call first. This is done with the Wicket
> Ajax API: Wicket.Ajax.get(...).
>
> Just try with the line I've added in your JS code
>
>
> On Mon, Nov 11, 2013 at 4:04 PM, Daniela L  wrote:
>
> > I thought adding respond was the ajax call to the server, am I wrong?
> > I didn't work much with ajax, i am sorry
> >
> >
> > 2013/11/11 Martin Grigorov 
> >
> > > Did you do what I suggested you ?
> > >
> > >
> > > On Mon, Nov 11, 2013 at 3:49 PM, Daniela L 
> wrote:
> > >
> > > > Hi,
> > > >
> > > > I have tryed to change to AbstractDefaultAjaxBehavior like I
> described
> > > > below, but respond is never called. What am I doing wrong?
> > > >
> > > >
> > > > Hi,
> > > >
> > > > as far as I have understood this can only be achieved, if I subclass
> > > > AbstractDefaultAjaxBehavior like this?
> > > >
> > > > public class PageExitWarningBehavior extends
> > AbstractDefaultAjaxBehavior
> > >  {
> > > > @Override
> > > > protected void respond(AjaxRequestTarget target) {
> > > >
> > > > AppointmentSession.get().releaseSavedBlockedFreeCalendarEvent();
> > > >   }
> > > >
> > > >
> > > > Hi,
> > > >
> > > > You need to make an Ajax call to the server.
> > > >
> > > >
> > > > On Mon, Nov 11, 2013 at 2:10 PM, Daniela L 
> > > >  
> > > > wrote:
> > > >
> > > >
> > > > Hi,
> > > > this is my first question, so i hope I get everything right.
> > > >
> > > > I am trying to catch the event of the user closing the browser window
> > in
> > > > wicket.
> > > >
> > > > I followed this example:
> > > >
> > > >
> > >
> >
> http://stackoverflow.com/questions/16527463/call-java-component-from-javascript-and-retreive-value
> > > >
> > > > and I managed to get the example working so the message is displayed,
> > > but I
> > > > have no idea how to get the event triggered by the javascript
> function
> > in
> > > > wicket. I need this because when the user closes the browser window I
> > > want
> > > > to update some data in my database.
> > > > Here is what I have tryed:
> > > >
> > > >
> > > >  RequiredTextField myTextField = new
> > > > RequiredTextField("myTextField");
> > > >  myTextField.setOutputMarkupPlaceholderTag(true);
> > > >  myTextField.add(new PageExitWarningBehavior(){
> > > > @Override
> > > > public void onEvent(Component component, IEvent event)
> > > > {
> > > > //this isn't ever called
> > > > MySession.get().releaseBlockedDataFromDatabase();
> > > > }
> > > > });
> > > >
> > > > public class PageExitWarningBehavior extends Behavior  {
> > > > @Override
> > > > public void renderHead(Component component, IHeaderResponse
> > > > response) {
> > > > super.renderHead(component, response);
> > > > response.render(new
> > > > OnDomReadyHeaderItem("window.onbeforeunload = function (e) {"
> > > >
> > > >
> > > >   + "Wicket.Ajax.get({u: '"+getCallbackUrl()+"',
> > > async:
> > > > false});"
> > > >
> > > >
> > > >   + "var message = 'Your confirmation message goes
> > > > here.',"
> > > >
> > > >   + "e = e || window.event;" + "if (e) {"
> > > >
> > > >   + "e.returnValue = message;" + "}" + "return
> > message;"
> > > +
> > > > "};"));
> > > > }
> > > > }
> > > >
> > > > What am I missing? Thank you very much in advance
> > > >
> > >
> >
>

Re: Get return value of ajax event in Wicket 6.9.1

[Cedric Gatay]

I was on my phone and didn't read that well the provided snippet, it should
work fine then ;)

__
Cedric Gatay (@Cedric_Gatay )
http://code-troopers.com | http://www.bloggure.info | http://cedric.gatay.fr


On Mon, Nov 11, 2013 at 4:05 PM, Martin Grigorov wrote:

> There is a difference between onunload and onbeforeunload. You can cancel
> the latter.
> You can make Ajax call only in onbeforeunload. And it has to be
> synchronous.
>
>
> On Mon, Nov 11, 2013 at 4:55 PM, Cedric Gatay  wrote:
>
> > AFAIK the browser won't issue a new server call (or will not process the
> > response) once the onunload event has been called so I doubt this will
> work
> > (using the web inspector of your browser will allow you to check whether
> or
> > not the call has been done)
> >
> > I second what Martin said, you need to add the JavaScript code to call
> the
> > server.
> > Le 11 nov. 2013 15:29, "Martin Grigorov"  a écrit
> :
> >
> > > respond() is the callback method that Wicket will notify.
> > > But you need to trigger an Ajax call first. This is done with the
> Wicket
> > > Ajax API: Wicket.Ajax.get(...).
> > >
> > > Just try with the line I've added in your JS code
> > >
> > >
> > > On Mon, Nov 11, 2013 at 4:04 PM, Daniela L 
> wrote:
> > >
> > > > I thought adding respond was the ajax call to the server, am I wrong?
> > > > I didn't work much with ajax, i am sorry
> > > >
> > > >
> > > > 2013/11/11 Martin Grigorov 
> > > >
> > > > > Did you do what I suggested you ?
> > > > >
> > > > >
> > > > > On Mon, Nov 11, 2013 at 3:49 PM, Daniela L 
> > > wrote:
> > > > >
> > > > > > Hi,
> > > > > >
> > > > > > I have tryed to change to AbstractDefaultAjaxBehavior like I
> > > described
> > > > > > below, but respond is never called. What am I doing wrong?
> > > > > >
> > > > > >
> > > > > > Hi,
> > > > > >
> > > > > > as far as I have understood this can only be achieved, if I
> > subclass
> > > > > > AbstractDefaultAjaxBehavior like this?
> > > > > >
> > > > > > public class PageExitWarningBehavior extends
> > > > AbstractDefaultAjaxBehavior
> > > > >  {
> > > > > > @Override
> > > > > > protected void respond(AjaxRequestTarget target) {
> > > > > >
> > > > > > AppointmentSession.get().releaseSavedBlockedFreeCalendarEvent();
> > > > > >   }
> > > > > >
> > > > > >
> > > > > > Hi,
> > > > > >
> > > > > > You need to make an Ajax call to the server.
> > > > > >
> > > > > >
> > > > > > On Mon, Nov 11, 2013 at 2:10 PM, Daniela L  >
> > > > > >  <
> danigal...@gmail.com
> > >
> > > > > > wrote:
> > > > > >
> > > > > >
> > > > > > Hi,
> > > > > > this is my first question, so i hope I get everything right.
> > > > > >
> > > > > > I am trying to catch the event of the user closing the browser
> > window
> > > > in
> > > > > > wicket.
> > > > > >
> > > > > > I followed this example:
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> http://stackoverflow.com/questions/16527463/call-java-component-from-javascript-and-retreive-value
> > > > > >
> > > > > > and I managed to get the example working so the message is
> > displayed,
> > > > > but I
> > > > > > have no idea how to get the event triggered by the javascript
> > > function
> > > > in
> > > > > > wicket. I need this because when the user closes the browser
> > window I
> > > > > want
> > > > > > to update some data in my database.
> > > > > > Here is what I have tryed:
> > > > > >
> > > > > >
> > > > > >  RequiredTextField myTextField = new
> > > > > > RequiredTextField("myTextField");
> > > > > >  myTextField.setOutputMarkupPlaceholderTag(true);
> > > > > >  myTextField.add(new PageExitWarningBehavior(){
> > > > > > @Override
> > > > > > public void onEvent(Component component, IEvent
> > event)
> > > > > > {
> > > > > > //this isn't ever called
> > > > > > MySession.get().releaseBlockedDataFromDatabase();
> > > > > > }
> > > > > > });
> > > > > >
> > > > > > public class PageExitWarningBehavior extends Behavior  {
> > > > > > @Override
> > > > > > public void renderHead(Component component,
> IHeaderResponse
> > > > > > response) {
> > > > > > super.renderHead(component, response);
> > > > > > response.render(new
> > > > > > OnDomReadyHeaderItem("window.onbeforeunload = function (e) {"
> > > > > >
> > > > > >
> > > > > >   + "Wicket.Ajax.get({u:
> > '"+getCallbackUrl()+"',
> > > > > async:
> > > > > > false});"
> > > > > >
> > > > > >
> > > > > >   + "var message = 'Your confirmation message
> goes
> > > > > > here.',"
> > > > > >
> > > > > >   + "e = e || window.event;" + "if (e) {"
> > > > > >
> > > > > >   + "e.returnValue = message;" + "}" + "return
> > > > message;"
> > > > > +
> > > > > > "};"));
> > > > > > }
> > > > > > }
> > > > > >
> > > > > > What am I missing? Thank you very much 

Re: Get return value of ajax event in Wicket 6.9.1

[Martin Grigorov]

There is a difference between onunload and onbeforeunload. You can cancel
the latter.
You can make Ajax call only in onbeforeunload. And it has to be synchronous.


On Mon, Nov 11, 2013 at 4:55 PM, Cedric Gatay  wrote:

> AFAIK the browser won't issue a new server call (or will not process the
> response) once the onunload event has been called so I doubt this will work
> (using the web inspector of your browser will allow you to check whether or
> not the call has been done)
>
> I second what Martin said, you need to add the JavaScript code to call the
> server.
> Le 11 nov. 2013 15:29, "Martin Grigorov"  a écrit :
>
> > respond() is the callback method that Wicket will notify.
> > But you need to trigger an Ajax call first. This is done with the Wicket
> > Ajax API: Wicket.Ajax.get(...).
> >
> > Just try with the line I've added in your JS code
> >
> >
> > On Mon, Nov 11, 2013 at 4:04 PM, Daniela L  wrote:
> >
> > > I thought adding respond was the ajax call to the server, am I wrong?
> > > I didn't work much with ajax, i am sorry
> > >
> > >
> > > 2013/11/11 Martin Grigorov 
> > >
> > > > Did you do what I suggested you ?
> > > >
> > > >
> > > > On Mon, Nov 11, 2013 at 3:49 PM, Daniela L 
> > wrote:
> > > >
> > > > > Hi,
> > > > >
> > > > > I have tryed to change to AbstractDefaultAjaxBehavior like I
> > described
> > > > > below, but respond is never called. What am I doing wrong?
> > > > >
> > > > >
> > > > > Hi,
> > > > >
> > > > > as far as I have understood this can only be achieved, if I
> subclass
> > > > > AbstractDefaultAjaxBehavior like this?
> > > > >
> > > > > public class PageExitWarningBehavior extends
> > > AbstractDefaultAjaxBehavior
> > > >  {
> > > > > @Override
> > > > > protected void respond(AjaxRequestTarget target) {
> > > > >
> > > > > AppointmentSession.get().releaseSavedBlockedFreeCalendarEvent();
> > > > >   }
> > > > >
> > > > >
> > > > > Hi,
> > > > >
> > > > > You need to make an Ajax call to the server.
> > > > >
> > > > >
> > > > > On Mon, Nov 11, 2013 at 2:10 PM, Daniela L 
> > > > >   >
> > > > > wrote:
> > > > >
> > > > >
> > > > > Hi,
> > > > > this is my first question, so i hope I get everything right.
> > > > >
> > > > > I am trying to catch the event of the user closing the browser
> window
> > > in
> > > > > wicket.
> > > > >
> > > > > I followed this example:
> > > > >
> > > > >
> > > >
> > >
> >
> http://stackoverflow.com/questions/16527463/call-java-component-from-javascript-and-retreive-value
> > > > >
> > > > > and I managed to get the example working so the message is
> displayed,
> > > > but I
> > > > > have no idea how to get the event triggered by the javascript
> > function
> > > in
> > > > > wicket. I need this because when the user closes the browser
> window I
> > > > want
> > > > > to update some data in my database.
> > > > > Here is what I have tryed:
> > > > >
> > > > >
> > > > >  RequiredTextField myTextField = new
> > > > > RequiredTextField("myTextField");
> > > > >  myTextField.setOutputMarkupPlaceholderTag(true);
> > > > >  myTextField.add(new PageExitWarningBehavior(){
> > > > > @Override
> > > > > public void onEvent(Component component, IEvent
> event)
> > > > > {
> > > > > //this isn't ever called
> > > > > MySession.get().releaseBlockedDataFromDatabase();
> > > > > }
> > > > > });
> > > > >
> > > > > public class PageExitWarningBehavior extends Behavior  {
> > > > > @Override
> > > > > public void renderHead(Component component, IHeaderResponse
> > > > > response) {
> > > > > super.renderHead(component, response);
> > > > > response.render(new
> > > > > OnDomReadyHeaderItem("window.onbeforeunload = function (e) {"
> > > > >
> > > > >
> > > > >   + "Wicket.Ajax.get({u:
> '"+getCallbackUrl()+"',
> > > > async:
> > > > > false});"
> > > > >
> > > > >
> > > > >   + "var message = 'Your confirmation message goes
> > > > > here.',"
> > > > >
> > > > >   + "e = e || window.event;" + "if (e) {"
> > > > >
> > > > >   + "e.returnValue = message;" + "}" + "return
> > > message;"
> > > > +
> > > > > "};"));
> > > > > }
> > > > > }
> > > > >
> > > > > What am I missing? Thank you very much in advance
> > > > >
> > > >
> > >
> >
>

Re: Get return value of ajax event in Wicket 6.9.1

[Cedric Gatay]

AFAIK the browser won't issue a new server call (or will not process the
response) once the onunload event has been called so I doubt this will work
(using the web inspector of your browser will allow you to check whether or
not the call has been done)

I second what Martin said, you need to add the JavaScript code to call the
server.
Le 11 nov. 2013 15:29, "Martin Grigorov"  a écrit :

> respond() is the callback method that Wicket will notify.
> But you need to trigger an Ajax call first. This is done with the Wicket
> Ajax API: Wicket.Ajax.get(...).
>
> Just try with the line I've added in your JS code
>
>
> On Mon, Nov 11, 2013 at 4:04 PM, Daniela L  wrote:
>
> > I thought adding respond was the ajax call to the server, am I wrong?
> > I didn't work much with ajax, i am sorry
> >
> >
> > 2013/11/11 Martin Grigorov 
> >
> > > Did you do what I suggested you ?
> > >
> > >
> > > On Mon, Nov 11, 2013 at 3:49 PM, Daniela L 
> wrote:
> > >
> > > > Hi,
> > > >
> > > > I have tryed to change to AbstractDefaultAjaxBehavior like I
> described
> > > > below, but respond is never called. What am I doing wrong?
> > > >
> > > >
> > > > Hi,
> > > >
> > > > as far as I have understood this can only be achieved, if I subclass
> > > > AbstractDefaultAjaxBehavior like this?
> > > >
> > > > public class PageExitWarningBehavior extends
> > AbstractDefaultAjaxBehavior
> > >  {
> > > > @Override
> > > > protected void respond(AjaxRequestTarget target) {
> > > >
> > > > AppointmentSession.get().releaseSavedBlockedFreeCalendarEvent();
> > > >   }
> > > >
> > > >
> > > > Hi,
> > > >
> > > > You need to make an Ajax call to the server.
> > > >
> > > >
> > > > On Mon, Nov 11, 2013 at 2:10 PM, Daniela L 
> > > >  
> > > > wrote:
> > > >
> > > >
> > > > Hi,
> > > > this is my first question, so i hope I get everything right.
> > > >
> > > > I am trying to catch the event of the user closing the browser window
> > in
> > > > wicket.
> > > >
> > > > I followed this example:
> > > >
> > > >
> > >
> >
> http://stackoverflow.com/questions/16527463/call-java-component-from-javascript-and-retreive-value
> > > >
> > > > and I managed to get the example working so the message is displayed,
> > > but I
> > > > have no idea how to get the event triggered by the javascript
> function
> > in
> > > > wicket. I need this because when the user closes the browser window I
> > > want
> > > > to update some data in my database.
> > > > Here is what I have tryed:
> > > >
> > > >
> > > >  RequiredTextField myTextField = new
> > > > RequiredTextField("myTextField");
> > > >  myTextField.setOutputMarkupPlaceholderTag(true);
> > > >  myTextField.add(new PageExitWarningBehavior(){
> > > > @Override
> > > > public void onEvent(Component component, IEvent event)
> > > > {
> > > > //this isn't ever called
> > > > MySession.get().releaseBlockedDataFromDatabase();
> > > > }
> > > > });
> > > >
> > > > public class PageExitWarningBehavior extends Behavior  {
> > > > @Override
> > > > public void renderHead(Component component, IHeaderResponse
> > > > response) {
> > > > super.renderHead(component, response);
> > > > response.render(new
> > > > OnDomReadyHeaderItem("window.onbeforeunload = function (e) {"
> > > >
> > > >
> > > >   + "Wicket.Ajax.get({u: '"+getCallbackUrl()+"',
> > > async:
> > > > false});"
> > > >
> > > >
> > > >   + "var message = 'Your confirmation message goes
> > > > here.',"
> > > >
> > > >   + "e = e || window.event;" + "if (e) {"
> > > >
> > > >   + "e.returnValue = message;" + "}" + "return
> > message;"
> > > +
> > > > "};"));
> > > > }
> > > > }
> > > >
> > > > What am I missing? Thank you very much in advance
> > > >
> > >
> >
>

Re: Get return value of ajax event in Wicket 6.9.1

[Martin Grigorov]

respond() is the callback method that Wicket will notify.
But you need to trigger an Ajax call first. This is done with the Wicket
Ajax API: Wicket.Ajax.get(...).

Just try with the line I've added in your JS code


On Mon, Nov 11, 2013 at 4:04 PM, Daniela L  wrote:

> I thought adding respond was the ajax call to the server, am I wrong?
> I didn't work much with ajax, i am sorry
>
>
> 2013/11/11 Martin Grigorov 
>
> > Did you do what I suggested you ?
> >
> >
> > On Mon, Nov 11, 2013 at 3:49 PM, Daniela L  wrote:
> >
> > > Hi,
> > >
> > > I have tryed to change to AbstractDefaultAjaxBehavior like I described
> > > below, but respond is never called. What am I doing wrong?
> > >
> > >
> > > Hi,
> > >
> > > as far as I have understood this can only be achieved, if I subclass
> > > AbstractDefaultAjaxBehavior like this?
> > >
> > > public class PageExitWarningBehavior extends
> AbstractDefaultAjaxBehavior
> >  {
> > > @Override
> > > protected void respond(AjaxRequestTarget target) {
> > >
> > > AppointmentSession.get().releaseSavedBlockedFreeCalendarEvent();
> > >   }
> > >
> > >
> > > Hi,
> > >
> > > You need to make an Ajax call to the server.
> > >
> > >
> > > On Mon, Nov 11, 2013 at 2:10 PM, Daniela L 
> > >  
> > > wrote:
> > >
> > >
> > > Hi,
> > > this is my first question, so i hope I get everything right.
> > >
> > > I am trying to catch the event of the user closing the browser window
> in
> > > wicket.
> > >
> > > I followed this example:
> > >
> > >
> >
> http://stackoverflow.com/questions/16527463/call-java-component-from-javascript-and-retreive-value
> > >
> > > and I managed to get the example working so the message is displayed,
> > but I
> > > have no idea how to get the event triggered by the javascript function
> in
> > > wicket. I need this because when the user closes the browser window I
> > want
> > > to update some data in my database.
> > > Here is what I have tryed:
> > >
> > >
> > >  RequiredTextField myTextField = new
> > > RequiredTextField("myTextField");
> > >  myTextField.setOutputMarkupPlaceholderTag(true);
> > >  myTextField.add(new PageExitWarningBehavior(){
> > > @Override
> > > public void onEvent(Component component, IEvent event)
> > > {
> > > //this isn't ever called
> > > MySession.get().releaseBlockedDataFromDatabase();
> > > }
> > > });
> > >
> > > public class PageExitWarningBehavior extends Behavior  {
> > > @Override
> > > public void renderHead(Component component, IHeaderResponse
> > > response) {
> > > super.renderHead(component, response);
> > > response.render(new
> > > OnDomReadyHeaderItem("window.onbeforeunload = function (e) {"
> > >
> > >
> > >   + "Wicket.Ajax.get({u: '"+getCallbackUrl()+"',
> > async:
> > > false});"
> > >
> > >
> > >   + "var message = 'Your confirmation message goes
> > > here.',"
> > >
> > >   + "e = e || window.event;" + "if (e) {"
> > >
> > >   + "e.returnValue = message;" + "}" + "return
> message;"
> > +
> > > "};"));
> > > }
> > > }
> > >
> > > What am I missing? Thank you very much in advance
> > >
> >
>

Re: Get return value of ajax event in Wicket 6.9.1

[Daniela L]

I thought adding respond was the ajax call to the server, am I wrong?
I didn't work much with ajax, i am sorry


2013/11/11 Martin Grigorov 

> Did you do what I suggested you ?
>
>
> On Mon, Nov 11, 2013 at 3:49 PM, Daniela L  wrote:
>
> > Hi,
> >
> > I have tryed to change to AbstractDefaultAjaxBehavior like I described
> > below, but respond is never called. What am I doing wrong?
> >
> >
> > Hi,
> >
> > as far as I have understood this can only be achieved, if I subclass
> > AbstractDefaultAjaxBehavior like this?
> >
> > public class PageExitWarningBehavior extends AbstractDefaultAjaxBehavior
>  {
> > @Override
> > protected void respond(AjaxRequestTarget target) {
> >
> > AppointmentSession.get().releaseSavedBlockedFreeCalendarEvent();
> >   }
> >
> >
> > Hi,
> >
> > You need to make an Ajax call to the server.
> >
> >
> > On Mon, Nov 11, 2013 at 2:10 PM, Daniela L 
> >  
> > wrote:
> >
> >
> > Hi,
> > this is my first question, so i hope I get everything right.
> >
> > I am trying to catch the event of the user closing the browser window in
> > wicket.
> >
> > I followed this example:
> >
> >
> http://stackoverflow.com/questions/16527463/call-java-component-from-javascript-and-retreive-value
> >
> > and I managed to get the example working so the message is displayed,
> but I
> > have no idea how to get the event triggered by the javascript function in
> > wicket. I need this because when the user closes the browser window I
> want
> > to update some data in my database.
> > Here is what I have tryed:
> >
> >
> >  RequiredTextField myTextField = new
> > RequiredTextField("myTextField");
> >  myTextField.setOutputMarkupPlaceholderTag(true);
> >  myTextField.add(new PageExitWarningBehavior(){
> > @Override
> > public void onEvent(Component component, IEvent event)
> > {
> > //this isn't ever called
> > MySession.get().releaseBlockedDataFromDatabase();
> > }
> > });
> >
> > public class PageExitWarningBehavior extends Behavior  {
> > @Override
> > public void renderHead(Component component, IHeaderResponse
> > response) {
> > super.renderHead(component, response);
> > response.render(new
> > OnDomReadyHeaderItem("window.onbeforeunload = function (e) {"
> >
> >
> >   + "Wicket.Ajax.get({u: '"+getCallbackUrl()+"',
> async:
> > false});"
> >
> >
> >   + "var message = 'Your confirmation message goes
> > here.',"
> >
> >   + "e = e || window.event;" + "if (e) {"
> >
> >   + "e.returnValue = message;" + "}" + "return message;"
> +
> > "};"));
> > }
> > }
> >
> > What am I missing? Thank you very much in advance
> >
>

Re: Get return value of ajax event in Wicket 6.9.1

[Martin Grigorov]

Did you do what I suggested you ?


On Mon, Nov 11, 2013 at 3:49 PM, Daniela L  wrote:

> Hi,
>
> I have tryed to change to AbstractDefaultAjaxBehavior like I described
> below, but respond is never called. What am I doing wrong?
>
>
> Hi,
>
> as far as I have understood this can only be achieved, if I subclass
> AbstractDefaultAjaxBehavior like this?
>
> public class PageExitWarningBehavior extends AbstractDefaultAjaxBehavior  {
> @Override
> protected void respond(AjaxRequestTarget target) {
>
> AppointmentSession.get().releaseSavedBlockedFreeCalendarEvent();
>   }
>
>
> Hi,
>
> You need to make an Ajax call to the server.
>
>
> On Mon, Nov 11, 2013 at 2:10 PM, Daniela L 
>  
> wrote:
>
>
> Hi,
> this is my first question, so i hope I get everything right.
>
> I am trying to catch the event of the user closing the browser window in
> wicket.
>
> I followed this example:
>
> http://stackoverflow.com/questions/16527463/call-java-component-from-javascript-and-retreive-value
>
> and I managed to get the example working so the message is displayed, but I
> have no idea how to get the event triggered by the javascript function in
> wicket. I need this because when the user closes the browser window I want
> to update some data in my database.
> Here is what I have tryed:
>
>
>  RequiredTextField myTextField = new
> RequiredTextField("myTextField");
>  myTextField.setOutputMarkupPlaceholderTag(true);
>  myTextField.add(new PageExitWarningBehavior(){
> @Override
> public void onEvent(Component component, IEvent event)
> {
> //this isn't ever called
> MySession.get().releaseBlockedDataFromDatabase();
> }
> });
>
> public class PageExitWarningBehavior extends Behavior  {
> @Override
> public void renderHead(Component component, IHeaderResponse
> response) {
> super.renderHead(component, response);
> response.render(new
> OnDomReadyHeaderItem("window.onbeforeunload = function (e) {"
>
>
>   + "Wicket.Ajax.get({u: '"+getCallbackUrl()+"', async:
> false});"
>
>
>   + "var message = 'Your confirmation message goes
> here.',"
>
>   + "e = e || window.event;" + "if (e) {"
>
>   + "e.returnValue = message;" + "}" + "return message;" +
> "};"));
> }
> }
>
> What am I missing? Thank you very much in advance
>

Re: Get return value of ajax event in Wicket 6.9.1

[Daniela L]

Hi,

I have tryed to change to AbstractDefaultAjaxBehavior like I described
below, but respond is never called. What am I doing wrong?


Hi,

as far as I have understood this can only be achieved, if I subclass
AbstractDefaultAjaxBehavior like this?

public class PageExitWarningBehavior extends AbstractDefaultAjaxBehavior  {
@Override
protected void respond(AjaxRequestTarget target) {
AppointmentSession.get().releaseSavedBlockedFreeCalendarEvent();
  }


Hi,

You need to make an Ajax call to the server.


On Mon, Nov 11, 2013 at 2:10 PM, Daniela L 
 
wrote:


Hi,
this is my first question, so i hope I get everything right.

I am trying to catch the event of the user closing the browser window in
wicket.

I followed this example:
http://stackoverflow.com/questions/16527463/call-java-component-from-javascript-and-retreive-value

and I managed to get the example working so the message is displayed, but I
have no idea how to get the event triggered by the javascript function in
wicket. I need this because when the user closes the browser window I want
to update some data in my database.
Here is what I have tryed:


 RequiredTextField myTextField = new
RequiredTextField("myTextField");
 myTextField.setOutputMarkupPlaceholderTag(true);
 myTextField.add(new PageExitWarningBehavior(){
@Override
public void onEvent(Component component, IEvent event)
{
//this isn't ever called
MySession.get().releaseBlockedDataFromDatabase();
}
});

public class PageExitWarningBehavior extends Behavior  {
@Override
public void renderHead(Component component, IHeaderResponse
response) {
super.renderHead(component, response);
response.render(new
OnDomReadyHeaderItem("window.onbeforeunload = function (e) {"


  + "Wicket.Ajax.get({u: '"+getCallbackUrl()+"', async:
false});"


  + "var message = 'Your confirmation message goes
here.',"

  + "e = e || window.event;" + "if (e) {"

  + "e.returnValue = message;" + "}" + "return message;" +
"};"));
}
}

What am I missing? Thank you very much in advance

Re: Get return value of ajax event in Wicket 6.9.1

[Daniela L]

Hi,

as far as I have understood this can only be achieved, if I subclass
AbstractDefaultAjaxBehavior like this?

public class PageExitWarningBehavior extends AbstractDefaultAjaxBehavior  {
@Override
protected void respond(AjaxRequestTarget target) {
AppointmentSession.get().releaseSavedBlockedFreeCalendarEvent();
  }


Hi,

You need to make an Ajax call to the server.


On Mon, Nov 11, 2013 at 2:10 PM, Daniela L 
 wrote:


Hi,
this is my first question, so i hope I get everything right.

I am trying to catch the event of the user closing the browser window in
wicket.

I followed this example:

http://stackoverflow.com/questions/16527463/call-java-component-from-javascript-and-retreive-value

and I managed to get the example working so the message is displayed, but I
have no idea how to get the event triggered by the javascript function in
wicket. I need this because when the user closes the browser window I want
to update some data in my database.
Here is what I have tryed:


 RequiredTextField myTextField = new
RequiredTextField("myTextField");
 myTextField.setOutputMarkupPlaceholderTag(true);
 myTextField.add(new PageExitWarningBehavior(){
@Override
public void onEvent(Component component, IEvent event)
{
//this isn't ever called
MySession.get().releaseBlockedDataFromDatabase();
}
});

public class PageExitWarningBehavior extends Behavior  {
@Override
public void renderHead(Component component, IHeaderResponse
response) {
super.renderHead(component, response);
response.render(new
OnDomReadyHeaderItem("window.onbeforeunload = function (e) {"


  + "Wicket.Ajax.get({u: '"+getCallbackUrl()+"', async:
false});"


  + "var message = 'Your confirmation message goes
here.',"

  + "e = e || window.event;" + "if (e) {"

  + "e.returnValue = message;" + "}" + "return message;" +
"};"));
}
}

What am I missing? Thank you very much in advance

Re: Get return value of ajax event in Wicket 6.9.1

[Martin Grigorov]

Hi,

You need to make an Ajax call to the server.


On Mon, Nov 11, 2013 at 2:10 PM, Daniela L  wrote:

> Hi,
> this is my first question, so i hope I get everything right.
>
> I am trying to catch the event of the user closing the browser window in
> wicket.
>
> I followed this example:
>
>
> http://stackoverflow.com/questions/16527463/call-java-component-from-javascript-and-retreive-value
>
> and I managed to get the example working so the message is displayed, but I
> have no idea how to get the event triggered by the javascript function in
> wicket. I need this because when the user closes the browser window I want
> to update some data in my database.
> Here is what I have tryed:
>
>
>  RequiredTextField myTextField = new
> RequiredTextField("myTextField");
>  myTextField.setOutputMarkupPlaceholderTag(true);
>  myTextField.add(new PageExitWarningBehavior(){
> @Override
> public void onEvent(Component component, IEvent event)
> {
> //this isn't ever called
> MySession.get().releaseBlockedDataFromDatabase();
> }
> });
>
> public class PageExitWarningBehavior extends Behavior  {
> @Override
> public void renderHead(Component component, IHeaderResponse
> response) {
> super.renderHead(component, response);
> response.render(new
> OnDomReadyHeaderItem("window.onbeforeunload = function (e) {"
>
  + "Wicket.Ajax.get({u: '"+getCallbackUrl()+"', async:
false});"

>   + "var message = 'Your confirmation message goes
> here.',"

  + "e = e || window.event;" + "if (e) {"
>   + "e.returnValue = message;" + "}" + "return message;" +
> "};"));
> }
> }
>
> What am I missing? Thank you very much in advance :-)
>

Get return value of ajax event in Wicket 6.9.1

[Daniela L]

Hi,
this is my first question, so i hope I get everything right.

I am trying to catch the event of the user closing the browser window in
wicket.

I followed this example:

http://stackoverflow.com/questions/16527463/call-java-component-from-javascript-and-retreive-value

and I managed to get the example working so the message is displayed, but I
have no idea how to get the event triggered by the javascript function in
wicket. I need this because when the user closes the browser window I want
to update some data in my database.
Here is what I have tryed:


 RequiredTextField myTextField = new
RequiredTextField("myTextField");
 myTextField.setOutputMarkupPlaceholderTag(true);
 myTextField.add(new PageExitWarningBehavior(){
@Override
public void onEvent(Component component, IEvent event)
{
//this isn't ever called
MySession.get().releaseBlockedDataFromDatabase();
}
});

public class PageExitWarningBehavior extends Behavior  {
@Override
public void renderHead(Component component, IHeaderResponse
response) {
super.renderHead(component, response);
response.render(new
OnDomReadyHeaderItem("window.onbeforeunload = function (e) {"
  + "var message = 'Your confirmation message goes here.',"
  + "e = e || window.event;" + "if (e) {"
  + "e.returnValue = message;" + "}" + "return message;" +
"};"));
}
}

What am I missing? Thank you very much in advance :-)