BSP Extension Composite Element with Body

[Former Member]

Hello,

I created an own BSP Extension element "myLink" which should be a composite element containing HTMLB:LINK element.

The myLink-DO_AT_BEGINNING looks like follows:

-

-

---

DATA: orgLink TYPE REF TO CL_HTMLB_LINK.

orgLink = CL_HTMLB_LINK=>FACTORY( id = id

reference = reference

text = text ).

WHILE m_page_context->element_process( element = orgLink )

EQ CO_ELEMENT_CONTINUE.

ENDWHILE.

rc = CO_ELEMENT_CONTINUE.

-

-

---

This works fine for - Tag (coming from DO_AT_END of HTMLB:LINK) is inserted before the body of my element.

It is possible to add the text "LinkText" as a literal in the WHILE - loop. But: I don´t find a way to do this dynamically! The body of a myExtension:myLink can contain text, images, other BSP elements. How can I access this during runtime so that I can supply the BODY-parameter of method "element_process"? How to do this? Or isn´t this the solution for this problem?

Maybe I´m to silly to see obvious things. I read a lot of articles about composite BSP elements - but I didn´t find an example handling dynamic or unknown element-bodies.

Thank you for any help,

best regards,

Stefan

[Former Member · Accepted solution]

Hi Stefan,

look at the implementation of

CL_HTMLB_LINK->IF_BSP_ELEMENT~DO_AT_END

so you have to implement your own do_at_end.

Don't forget to check at bsp-element attributes that the element-content attribute is checked at bsp-elements & html.

Regards

[Former Member · Accepted solution]

Hello Sebastian,

wow, this was really a fast answer. I checked your proposal, but I´m no not sure if this solves my problem.

After performing

-

-

---

orgLink = CL_HTMLB_LINK=>FACTORY( id = id

reference = reference

text = text ).

WHILE m_page_context->element_process( element = orgLink )

EQ CO_ELEMENT_CONTINUE.

ENDWHILE.

-

-

---

the CL_HTMLB_LINK~DO_AT_END was performed and has already inserted the "</a>" tag. So it will not help if I change the DO_AT_END method of my extension.

I want to use the m_page_context->element_process method to process the "wrapped" HTMLB-element (HTMLB:LINK in my example) and do not want to copy all methods and attribues to an own BSP extension. I think for this reason the optional "BODY" - paramenter of m_page_context->element_process method is for. But I´ve no idea how to supply it.

Best regards,

Stefan Obermeier

[Former Member · Accepted solution]

Hi Stefen,

If you want te text to be inserted before the closing tag then you need to add some code to the while loop in your code.

Check this:

orgLink = CL_HTMLB_LINK=>FACTORY( id = id

reference = reference

text = text ).

WHILE m_page_context->element_process( element = orgLink )

EQ CO_ELEMENT_CONTINUE.

DATA: out TYPE REF TO IF_BSP_WRITER.

out = m_page_context->get_out( ).

out->print_string( 'Hello' ).

ENDWHILE.

-

---

This will add the text "Hello" between the ending and closing tags.

Hope it'll help.

Cheers

Ankur

[maximilian_schaufler · Accepted solution]

Hi Stefan,

I understand what you want to achieve - maybe you have to play around with the "delegated" attributes/methods to really achieve what you want using HMTLB:LINK from within your element this way.

Here is what I did for a similar problem: I created my own tooltip-on-mouseover extension, which can be wrapped around any kind of other elements that are placed in the tooltip element body.

I also have a special attribute in this element, "contentAsLink". If this attribute is set, I render the opening href HTML tag (<a>) in method DO_AT_BEGINNING, and the closing tag (</a>) in DO_AT_END. Not the best way if you really want to stick with HTMLB everywhere, but it's nice and easy.

Here is the precise opening tag I use:

<a class="urLnkFunction" href="javascript:void(0);">

Hope this helps you to find a solution for your needs.

Cheers,

Max

[former_member270796 · Accepted solution]

Hello Stefan,

the problem is the WHILE Statement in your extension. What you have to do is:

1. declare orgLink as Instance Private (or Protected) Attribute at your (extension) class

2. instead of

WHILE m_page_context->element_process( element = orgLink )

EQ CO_ELEMENT_CONTINUE. ENDWHILE.

please use

m_page_context->element_process( element = orgLink ).

in DO_AT_BEGINNING and a second

m_page_context->element_process( element = orgLink ).

in DO_AT_END

So the opening tag will be rendered in DO_AT_BEGINNING and the closing tag in DO_AT_END.

Hth, Bernhard

[Former Member · Accepted solution]

Hello Ankur,

thank you for your answer. However, this means that you "know" the text within the tags ("Hello" in your example).

But this is normally defined in BSP-layout page and a topic of (dynamic) change. How can this be handled?

Best regards,

Stefan

[Former Member · Accepted solution]

Hello Bernhard,

thank you for this solution. It works fine for all examples I´ve tested.

The only thing which is not clear for me is that I´ve read that BSP-element can interate over the body and that this requires to have this WHILE-loop.

Best regards,

Stefan Obermeier