Re: [Mason] Mason2 how to wrap (augment) content of internal component
Thank you very much for a concise reply.
I'll start with 1) (it may be ugly but it is self documented), if I later
found, there are two many cases of wrapping internal comps, I can switch to
2)
Regarding option 4) I haven't found so far a way how to (reasonably) apply
roles to a template.
I can use 'with' in %class section but only for roles which don't interact
with the importing class
(modifiers, requires, ...) since the role is applied before the methods of
the class are compiled.
I tried Scope::Guard unsuccessfully to process 'with' after methods are
compiled
<%class>
use Scope::Guard qw(scope_guard);
# I need the role to be applied after methods are introduced in runtime
my $g = scope_guard sub { with 'MyApp::Mason::Component::Form::Wrapper' };
<%class>
which is obvious since on a file level the $g never goes out of scope.
What I even can't imagine is: "Then your Base.mc could use a role that has
an around modifier on main()"
How a modifier applied to a base class can wrap a method supplied in a
subclass?
Roman Daniel
2012/1/7 Jonathan Swartz
> Well, it's harder than I thought without implementation changes or a
> plugin.
>
> Here are the options I'm considering so far:
>
> 1) Change the way you call these components - i.e. instead of
>
> <& /form/login.mc, form=>$login_form &>
>
> do
>
> <% $m->construct('/form/login.mc', form => $login_form)->render %>
>
> Obviously this is ugly, would be better to be able to change it
> transparently without changing each component call.
>
> 2) Change Mason::Request::comp (<& &>) so that instead of calling main()
> directly, it calls a method call() which in turn calls main(). Then you can
> override call() or use an around-modifier on it. e.g.
>
> form/Base.mc:
> -
> <%around call>
>
>% $self-$orig(@_);
>
>
>
> This introduces an extra method for every component call that will almost
> never be overriden. Maybe not a big deal in the grand scheme of things, but
> feels hacky. Also introduces another reserved method name in
> Mason::Component. Finally if you have multiple layers of these they will
> wrap in the reverse direction you expect.
>
> 3) Add a plugin that does #2, so that the extra method call doesn't hit
> everyone, just those that need it.
>
> 4) Create a way to apply roles to components. Then your Base.mc could use
> a role that has an around modifier on main().
>
> Thoughts welcome.
>
> Jon
>
> On Jan 6, 2012, at 3:21 PM, Jonathan Swartz wrote:
>
> Definitely possible, but I am working on the best syntax... :)
>
> Jon
>
> On Jan 6, 2012, at 1:55 AM, Roman Daniel wrote:
>
> Is it possible to achieve the effect of wrapping child component content
> by its parent with internal components?
> For request component I could use
>
>
> form/Base.mc:
>
> <%class>
> has form => (is =>'ro', required =>1);
>
>
> <%method wrap>
>
> % inner();
>
>
>
>
> form/login.mc:
> -
> <% $.field(...) %>
> <% $.field(...) %>
>
>
> But when called from other component, method main is called directly and
> wrap is skipped.
>
> <& /form/login.mc, form=>$login_form &>
>
>
> I appreciate any tip
>
> Roman Daniel
>
> --
> Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex
> infrastructure or vast IT resources to deliver seamless, secure access to
> virtual desktops. With this all-in-one solution, easily deploy virtual
> desktops for less than the cost of PCs and save 60% on VDI infrastructure
> costs. Try it free!
> http://p.sf.net/sfu/Citrix-VDIinabox___
> Mason-users mailing list
> Mason-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/mason-users
>
>
>
>
--
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infrastructure or vast IT resources to deliver seamless, secure access to
virtual desktops. With this all-in-one solution, easily deploy virtual
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Re: [Mason] Mason2 how to wrap (augment) content of internal component
Well, it's harder than I thought without implementation changes or a plugin.
Here are the options I'm considering so far:
1) Change the way you call these components - i.e. instead of
<& /form/login.mc, form=>$login_form &>
do
<% $m->construct('/form/login.mc', form => $login_form)->render %>
Obviously this is ugly, would be better to be able to change it transparently
without changing each component call.
2) Change Mason::Request::comp (<& &>) so that instead of calling main()
directly, it calls a method call() which in turn calls main(). Then you can
override call() or use an around-modifier on it. e.g.
form/Base.mc:
-
<%around call>
% $self-$orig(@_);
This introduces an extra method for every component call that will almost never
be overriden. Maybe not a big deal in the grand scheme of things, but feels
hacky. Also introduces another reserved method name in Mason::Component.
Finally if you have multiple layers of these they will wrap in the reverse
direction you expect.
3) Add a plugin that does #2, so that the extra method call doesn't hit
everyone, just those that need it.
4) Create a way to apply roles to components. Then your Base.mc could use a
role that has an around modifier on main().
Thoughts welcome.
Jon
On Jan 6, 2012, at 3:21 PM, Jonathan Swartz wrote:
> Definitely possible, but I am working on the best syntax... :)
>
> Jon
>
> On Jan 6, 2012, at 1:55 AM, Roman Daniel wrote:
>
>> Is it possible to achieve the effect of wrapping child component content by
>> its parent with internal components?
>> For request component I could use
>>
>>
>> form/Base.mc:
>>
>> <%class>
>> has form => (is =>'ro', required =>1);
>>
>>
>> <%method wrap>
>>
>> % inner();
>>
>>
>>
>>
>> form/login.mc:
>> -
>> <% $.field(...) %>
>> <% $.field(...) %>
>>
>>
>> But when called from other component, method main is called directly and
>> wrap is skipped.
>>
>> <& /form/login.mc, form=>$login_form &>
>>
>>
>> I appreciate any tip
>>
>> Roman Daniel
>> --
>> Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex
>> infrastructure or vast IT resources to deliver seamless, secure access to
>> virtual desktops. With this all-in-one solution, easily deploy virtual
>> desktops for less than the cost of PCs and save 60% on VDI infrastructure
>> costs. Try it free!
>> http://p.sf.net/sfu/Citrix-VDIinabox___
>> Mason-users mailing list
>> Mason-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/mason-users
>
--
Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex
infrastructure or vast IT resources to deliver seamless, secure access to
virtual desktops. With this all-in-one solution, easily deploy virtual
desktops for less than the cost of PCs and save 60% on VDI infrastructure
costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox___
Mason-users mailing list
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Re: [Mason] Mason2 how to wrap (augment) content of internal component
Definitely possible, but I am working on the best syntax... :) Jon On Jan 6, 2012, at 1:55 AM, Roman Daniel wrote: > Is it possible to achieve the effect of wrapping child component content by > its parent with internal components? > For request component I could use > > > form/Base.mc: > > <%class> > has form => (is =>'ro', required =>1); > > > <%method wrap> > > % inner(); > > > > > form/login.mc: > - > <% $.field(...) %> > <% $.field(...) %> > > > But when called from other component, method main is called directly and wrap > is skipped. > > <& /form/login.mc, form=>$login_form &> > > > I appreciate any tip > > Roman Daniel > -- > Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex > infrastructure or vast IT resources to deliver seamless, secure access to > virtual desktops. With this all-in-one solution, easily deploy virtual > desktops for less than the cost of PCs and save 60% on VDI infrastructure > costs. Try it free! > http://p.sf.net/sfu/Citrix-VDIinabox___ > Mason-users mailing list > Mason-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/mason-users -- Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex infrastructure or vast IT resources to deliver seamless, secure access to virtual desktops. With this all-in-one solution, easily deploy virtual desktops for less than the cost of PCs and save 60% on VDI infrastructure costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox___ Mason-users mailing list Mason-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mason-users
[Mason] Mason2 how to wrap (augment) content of internal component
Is it possible to achieve the effect of wrapping child component content by its parent with internal components? For request component I could use form/Base.mc: <%class> has form => (is =>'ro', required =>1); <%method wrap> % inner(); form/login.mc: - <% $.field(...) %> <% $.field(...) %> But when called from other component, method main is called directly and wrap is skipped. <& /form/login.mc, form=>$login_form &> I appreciate any tip Roman Daniel -- Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex infrastructure or vast IT resources to deliver seamless, secure access to virtual desktops. With this all-in-one solution, easily deploy virtual desktops for less than the cost of PCs and save 60% on VDI infrastructure costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox___ Mason-users mailing list Mason-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mason-users
