Re: How can a component know if it's being rendered as part of Ajax response?
Hi Vit,
I'm using a utility class to encapsulate these use cases:
/** Utility class for interacting with {@link AjaxRequestTarget}s */
> public final class AjaxTarget {
> private AjaxTarget() {
> // utility class
> }
> /**
> * Checks if there is an active {@link AjaxRequestTarget}
> *
> * @return {@code true} if there is a request target bound to the thread,
> else {@code false}
> */
> public static boolean exists() {
> return find().isPresent();
> }
> /** @return the {@link AjaxRequestTarget} bound to the thread or {@code
> null} */
> public static AjaxRequestTarget get() {
> return find().orElse(null);
> }
> /** @return the optional {@link AjaxRequestTarget} bound to the thread */
> public static Optional find() {
> return RequestCycle.get().find(AjaxRequestTarget.class);
> }
> /**
> * Adds the given components to the active request target if available.
> *
> * @param component the first component to add
> * @param otherComponents the other components to add
> * @see AjaxRequestTarget#add(org.apache.wicket.Component...)
> */
> public static void add(Component component, Component... otherComponents) {
> find().ifPresent(t -> {
> if (component != null) {
> t.add(component);
> }
> t.add(otherComponents);
> });
> }
> /**
> * Adds all components of the given class to the active request target if
> available.
> *
> * @param childCriteria the child component class
> * @param the type of child component
> * @see AjaxRequestTarget#addChildren(org.apache.wicket.MarkupContainer,
> Class)
> */
> public static void add(Class childCriteria) {
> find().ifPresent(t -> add(t.getPage(), childCriteria));
> }
>
/**
> * Appends JavaScript to the active request target if available
> *
> * @param javaScript the script to append
> * @see AjaxRequestTarget#appendJavaScript(CharSequence)
> */
> public static void appendJavaScript(CharSequence javaScript) {
> find().ifPresent(t -> t.appendJavaScript(javaScript));
> }
> /**
> * Prepends JavaScript to the active request target if available
> *
> * @param javaScript the script to prepend
> * @see AjaxRequestTarget#prependJavaScript(CharSequence)
> */
> public static void prependJavaScript(CharSequence javaScript) {
> find().ifPresent(t -> t.prependJavaScript(javaScript));
> }
}
Best regards,
Thomas
On Sun, Apr 5, 2020 at 6:58 PM Vit Rozkovec wrote:
> In my project it is around 40 cases of such usage. Is it little? Is it a
> lot. I don't know.
> Never mind :)
>
> Have a nice day.
> Vit
>
> On 4/5/20 11:20 AM, Sven Meier wrote:
> > Hi,
> >
> > actually it's not that common, in wicket-core and -extensions this
> > pattern is used 9 times only.
> >
> > When the RequestCycle API emerged, we decided against a specific
> > method and chose a generic one with parameter instead.
> >
> > Have fun
> > Sven
> >
> >
> > On 05.04.20 08:47, Vit Rozkovec wrote:
> >> Hi, this seems to be a frequent use case, wouldn't there be a good
> >> fit for some shorthand method?
> >>
> >> Like
> >>
> >> /getRequestCycle().onAjax(t-> {});/
> >> boolean getRequestCycle().isAjax();
> >>
> >> ?
> >>
> >> Vit
> >>
> >>
> >> On 4/4/20 11:51 PM, Sven Meier wrote:
> >>> Hi,
> >>>
> >>> you can test for the appropriate request handler:
> >>>
> >>>
> getRequestCycle().find(IPartialPageRequestHandler.class).ifPresent(target
> >>> -> /* do things on partial page update */));
> >>>
> >>> Have fun
> >>> Sven
> >>>
> >>>
> >>> On 04.04.20 23:43, Vilius Vaivada wrote:
> Hey guys,
>
> I'm pretty sure I'm missing something obvious here, but I can't
> figure out
> a simple way for a component to contribute slightly different
> Javascript
> based on whether it's being rendered for a full page load or a
> partial Ajax
> response. Any clues?
>
> Thanks a lot!
>
> >>>
> >>> -
> >>> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> >>> For additional commands, e-mail: users-h...@wicket.apache.org
> >>>
> >>
> >>
> >
> > -
> > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> > For additional commands, e-mail: users-h...@wicket.apache.org
> >
>
>
> -
> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> For additional commands, e-mail: users-h...@wicket.apache.org
>
>
Re: How can a component know if it's being rendered as part of Ajax response?
In my project it is around 40 cases of such usage. Is it little? Is it a
lot. I don't know.
Never mind :)
Have a nice day.
Vit
On 4/5/20 11:20 AM, Sven Meier wrote:
Hi,
actually it's not that common, in wicket-core and -extensions this
pattern is used 9 times only.
When the RequestCycle API emerged, we decided against a specific
method and chose a generic one with parameter instead.
Have fun
Sven
On 05.04.20 08:47, Vit Rozkovec wrote:
Hi, this seems to be a frequent use case, wouldn't there be a good
fit for some shorthand method?
Like
/getRequestCycle().onAjax(t-> {});/
boolean getRequestCycle().isAjax();
?
Vit
On 4/4/20 11:51 PM, Sven Meier wrote:
Hi,
you can test for the appropriate request handler:
getRequestCycle().find(IPartialPageRequestHandler.class).ifPresent(target
-> /* do things on partial page update */));
Have fun
Sven
On 04.04.20 23:43, Vilius Vaivada wrote:
Hey guys,
I'm pretty sure I'm missing something obvious here, but I can't
figure out
a simple way for a component to contribute slightly different
Javascript
based on whether it's being rendered for a full page load or a
partial Ajax
response. Any clues?
Thanks a lot!
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
-
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Re: How can a component know if it's being rendered as part of Ajax response?
That worked like a charm, thank you very much!
On Sun, Apr 5, 2020 at 9:20 PM Sven Meier wrote:
> Hi,
>
> actually it's not that common, in wicket-core and -extensions this
> pattern is used 9 times only.
>
> When the RequestCycle API emerged, we decided against a specific method
> and chose a generic one with parameter instead.
>
> Have fun
> Sven
>
>
> On 05.04.20 08:47, Vit Rozkovec wrote:
> > Hi, this seems to be a frequent use case, wouldn't there be a good fit
> > for some shorthand method?
> >
> > Like
> >
> > /getRequestCycle().onAjax(t-> {});/
> > boolean getRequestCycle().isAjax();
> >
> > ?
> >
> > Vit
> >
> >
> > On 4/4/20 11:51 PM, Sven Meier wrote:
> >> Hi,
> >>
> >> you can test for the appropriate request handler:
> >>
> >>
> getRequestCycle().find(IPartialPageRequestHandler.class).ifPresent(target
> >> -> /* do things on partial page update */));
> >>
> >> Have fun
> >> Sven
> >>
> >>
> >> On 04.04.20 23:43, Vilius Vaivada wrote:
> >>> Hey guys,
> >>>
> >>> I'm pretty sure I'm missing something obvious here, but I can't
> >>> figure out
> >>> a simple way for a component to contribute slightly different
> >>> Javascript
> >>> based on whether it's being rendered for a full page load or a
> >>> partial Ajax
> >>> response. Any clues?
> >>>
> >>> Thanks a lot!
> >>>
> >>
> >> -
> >> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> >> For additional commands, e-mail: users-h...@wicket.apache.org
> >>
> >
> >
>
> -
> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> For additional commands, e-mail: users-h...@wicket.apache.org
>
>
Re: How can a component know if it's being rendered as part of Ajax response?
Hi,
actually it's not that common, in wicket-core and -extensions this
pattern is used 9 times only.
When the RequestCycle API emerged, we decided against a specific method
and chose a generic one with parameter instead.
Have fun
Sven
On 05.04.20 08:47, Vit Rozkovec wrote:
Hi, this seems to be a frequent use case, wouldn't there be a good fit
for some shorthand method?
Like
/getRequestCycle().onAjax(t-> {});/
boolean getRequestCycle().isAjax();
?
Vit
On 4/4/20 11:51 PM, Sven Meier wrote:
Hi,
you can test for the appropriate request handler:
getRequestCycle().find(IPartialPageRequestHandler.class).ifPresent(target
-> /* do things on partial page update */));
Have fun
Sven
On 04.04.20 23:43, Vilius Vaivada wrote:
Hey guys,
I'm pretty sure I'm missing something obvious here, but I can't
figure out
a simple way for a component to contribute slightly different
Javascript
based on whether it's being rendered for a full page load or a
partial Ajax
response. Any clues?
Thanks a lot!
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
Re: How can a component know if it's being rendered as part of Ajax response?
Hi, this seems to be a frequent use case, wouldn't there be a good fit
for some shorthand method?
Like
/getRequestCycle().onAjax(t-> {});/
boolean getRequestCycle().isAjax();
?
Vit
On 4/4/20 11:51 PM, Sven Meier wrote:
Hi,
you can test for the appropriate request handler:
getRequestCycle().find(IPartialPageRequestHandler.class).ifPresent(target
-> /* do things on partial page update */));
Have fun
Sven
On 04.04.20 23:43, Vilius Vaivada wrote:
Hey guys,
I'm pretty sure I'm missing something obvious here, but I can't
figure out
a simple way for a component to contribute slightly different Javascript
based on whether it's being rendered for a full page load or a
partial Ajax
response. Any clues?
Thanks a lot!
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
