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Re: [Orgmode] export and containers

From: Sebastian Rose
Subject: Re: [Orgmode] export and containers
Date: Mon, 02 Mar 2009 17:50:15 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.91 (gnu/linux) 
Richard Riley <address@hidden> writes:
> Sebastian Rose <address@hidden> writes:
>
>> Richard Riley <address@hidden> writes:
>>> Sebastian Rose <address@hidden> writes:
>>>
>>>> Richard Riley <address@hidden> writes:
>>>>> It's been a while since I've looked at my org set up. One thing that
>>>>> always struck me as a bit hacky was my use of
>>>>>
>>>>> :preamble "<div id='content'>
>>>>>
>>>>> and the corresponding postamble to enclose the exported web pages into a
>>>>> "container" div. Is there a better way to do this? I would think it
>>>>> would be a common enough need that by default or via an option all html
>>>>> should be enclosed in a "webcontainer" ID.
>>>>
>>>> While one container around everything makes it possible to center the
>>>> page horizontally, two containers make it possible to center the page
>>>> vertically as well.
>>>>
>>>> If we would go and change the structure once again, I'd even suggest the
>>>> following:
>>>>
>>>> <body>
>>>>   <div id="percent-50">         -- center the page if desired
>>>>     <div id="wrap">             -- center the page if desired
>>>
>>> Why always IDs as opposed to classes?
>>
>>
>> `percent-50' and `wrap' are there for a special purpose and unique in
>> that concern. `wrap' is the `content' you originally requested. I did
>> not use my brain and called it `wrap' without any annotation.
>
> "content" or "org-container". Wrap made no sense to me. It suggests word
> wrap in the context. wrapper would be better. Purely vocabulary issue.
>
>>
>>>>> :preamble "<div id='content'>
>>
>> I'd say they should have an ID assigned.
>
> Just an academic question : Why not a class?



Because it's supposed to be the exact entity, that contains exact all
the other stuff and shares no styles but those all <div> elements and
<body> share. A user could add another container "<div class='content'>"
and break the page layout.

But as no browser seems to force the uniquety of IDs, it doesn't yet
make a difference really.




>>> Can css selectors select based on a part of a name? If not then there is
>>> no link between column-1 and column-2. e.g in this convention how does
>>> one create a common style for all columns or all "sec-" objects?
>>
>> Aaah, OK, sorry for being unclear - a misunderstanding.
>>
>> I did *not* mean to _change_ the structure of the XHTML in it's
>> current
>
> FYI I have abandoned xhtml in the smalle bit of web UI I touch.. It is
> not cross platform/browser. Common concensus says make it html 4.01
> strict compliant.



I can't tell that, and I touch quite some UIs. XHTML is more rigid
though. Case sensitive and so on. It's what WEB-programming always was:
fiddling with different browsers, each of which having it's own
`standard' and finding the Lowest Common Denominator...
It doesn't really have to do anything with programming, where things
usually are well defined even accross different plattforms.

But I can say, that XHTML is just as crossbrowser as HTML. Validating
helps a lot though. 


>> form, but simply _add_ additional containers to partition the whole
>> thing (just as you suggested) and thus make it possible to move certain
>> groups of content around through CSS.
>>
>> All the "sec-" objects should go into `column-2'.
>
> I dont know/understand what you mean with "columns".
>
> Columns suggest layout in columns. It should simply be a "wrapper". That
> wrapper may or may not be CSSd to a column. It might be a float or a
> fixed position or .....


Yes, sorry - those where stupid names...


>> All the `sec-' objects share classes via the containers they live in:
>>
>>     <div id="outline-container-2" class="outline-2">
>>     <div id="outline-container-2.1" class="outline-3">
>>
>> etc.
>
> Yes. Thats what I was suggesting but see later on regarding css descendants.
>
>>
>> That's already the case, and I think we don't need to change that.
>>
>
> There is still this difference between ID and class name. I'm not sure I
> see why.


Hmm - let's see...

Each of the elements has a class assigned, that is common to those on
the same level.

Some of them have an additional ID that makes it possible to address
exactly that very element:

<div id="outline-container-4.1" class="outline-3">
<h3 id="sec-4.1"><span class="section-number-3">4.1</span> Pi </h3>
<div class="outline-text-3" id="text-4.1">

The headline `PI' is no different from other headlines in the document
from JavaScript's or XML-Tools point of view. What makes the element
special, is just it's ID.

There could be a headline `PI' on the same level in any other Section of
the document. That's why we need the ID.

Sure you may use CSS-selectors like this, to style all the level 3 <p>
elements:

.outline-text-3 p
{
  color:green;
}





>>
>> * Suggestions for names
>>
>>   `wrap' is, what they use in typolight and some other CMSs. But
>>   `content' sounds good to me too.
>>
>>   <div id="center">
>>     <div id="wrap"><!-- or `content' -->
>>
>>       <div id="box-1">
>>         <div id="table-of-contents">
>>          ...
>>         </div>
>>       </div><!-- end of box-1 -->
>>
>>       <div id="box-2">
>
> where is the "base" class for box-2?
>
> The issue I see is that theres no way using this method to change all
> "sec-" entries in an outline container for example since you cant use
> css descendants since all have *unique* class names and IDs.


Hihi, I just see what you mean (below). I seem to have no luck in
answering your mails ;-)

In this example below it seems that `outline-2' has the `2' in it's class
name, because it's the class of the container that holds section 2. But
that's not true. Sorry for being so stupid.
Each container on depth 2 has this class name assigned.
So you may change the number in all IDs and the section number to 14.


>>         <div id="outline-container-2" class="outline-2">
>>           <h2 id="sec-1"><span class="section-number-2">2</span> 
>> Konfiguration </h2>
>>           <div class="outline-text-2" id="text-2">
>
> and another div here is what?
>
>
> ,----
> | >           <div class="outline-text-2" id="text-3">
> `----
>
> ?

My next being unclear :-/

I'd better copy and paste from real exported stuff:

<div id="outline-container-6" class="outline-2">
  <h2 id="sec-6"><span class="section-number-2">6</span> Computer </h2>
  <div class="outline-text-2" id="text-6">
     content of section 6
  </div>

  <div id="outline-container-6.1" class="outline-3">
    <h3 id="sec-6.1"><span class="section-number-3">6.1</span> Linux </h3>
    <div class="outline-text-3" id="text-6.1">
       content of section 6.1
    </div>
  </div>

  <div id="outline-container-6.2" class="outline-3">
    <h3 id="sec-6.2"><span class="section-number-3">6.2</span> Linux </h3>
    <div class="outline-text-3" id="text-6.2">
       content of section 6.2
    </div>
  </div>

</div>


> I'm not sure I understand the need for the container container. Maybe I
> need to Google up centering vertically.


Hrm, just ignore me. We can center the page vertically without an additional
container.


Regard,

  Sebastian

--
Sebastian Rose, EMMA STIL - mediendesign, Niemeyerstr.6, 30449 Hannover
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