2014-05-28 10:43 GMT+02:00 Marius Dumitru Florea <
[email protected]>:

> On Tue, May 27, 2014 at 11:47 AM, Guillaume "Louis-Marie" Delhumeau
> <[email protected]> wrote:
> > 2014-05-27 9:56 GMT+02:00 Denis Gervalle <[email protected]>:
> >
> >> Hi Guillaume,
> >>
> >> Maintaining retro-compatibility for theme using LESS code is too much.
> >> Maintaining retro compatibility could be simply to support importing
> >> existing color themes in the new theme system made for bootstrap and no
> >> more.
> >>
> >
> > Let me show you an example:
> > The Activity Stream has its own CSS, which does:
> >
> > #template('colorThemeInit.vm')
> > ...
> > .activityPage:hover , .activityApplication:hover , .activityUser:hover {
> >   background: $theme.highlightColor;
> > }
> > ...
> >
> > So when my mouse is hovering the AS, its background color change. By
> > default, it's a kind of yellow.
> >
> > Now, if I want to integrate a bootswatch theme, let say 'slate' [1]. I
> just
> > copy the LESS files ([2] and [3]) in my textarea.
> >
> > It looks very good [4], until my mouse comes over the activity stream...
> > that becomes yellow! [5] Something needs to be done.
> >
>
> All clear up to here.
>
> > A solution could be to manually fix the colors in the color theme editor
> > but it defeats the principle to easily integrate a bootstrap kit found on
> > the web...
> >
>
> > That's why I would like to parse the LESS code. With the solution 3,
> which
> > is easy to implement, we have a solution.
>
> So you need to set the value of $theme.highlightColor to a color taken
> from the 'slate' theme (which was taken from bootswatch). I must say I
> didn't understood very well what you mean by parsing the LESS output.
> Can you give more details (for solution 3)?
>

Ok.

I have mapped "highlightColor" (color theme variable) to
"@nav-link-hover-bg" (bootstrap variable).

So, when slat changes @nav-link-hover-bg to gray, I want to be able to say
"$theme.highlightColor" is gray too.

How can I do that?

1/ Parsing the LESS file
or
2/ Parsing the CSS output file

I am prototyping the method 2.

Concretly, at the end of my style.less file, I add:

/* this class is actually useless for the browser */
.colortheme-highlightColor{
  color: @nav-link-hover-bg;
}


LESS transforms it to:

.colortheme-highlightColor{
  color: #eee;
}

Now, my parser looks at every classes starting by ".colortheme-". The
mapping looks like this:

.colortheme-NAME_OF_THE_VARIABLE{
  color: VALUE_OF_THE_VARIABLE;
}

So my parser is able to say "highlightColor" = "#eee".

I agree... it looks like a hack. But it is the simplest way I have found to
compute the color theme from a LESS file...



>
> Thanks,
> Marius
>
> >
> > I agree it's not perfect, but it could be a migration path until we
> change
> > all the CSS of every applications!
> >
> >
> >
> >> Regarding the customization of Bootstrap, it exists a couple of tools
> >> already. It allows far more than just color customization. Have you
> check
> >> if one of those existing tools could be adapted (and have appropriate
> >> license) ?
> >>
> >
> > I am looking at it. Not sure we could find it (easy to integrate,
> > maintained, compatible with XWiki....).
> >
> > Thanks,
> > Guillaume
> >
> > [1] Slate: http://bootswatch.com/slate/
> > [2] Slate variables.less: http://bootswatch.com/slate/variables.less
> > [3] Slate bootswatch.less: http://bootswatch.com/slate/bootswatch.less
> > [4] Results:
> > http://tof.canardpc.com/view/7740a7ee-29f4-454f-99e7-f45ef53d9095.jpg
> > [5] Not good:
> > http://tof.canardpc.com/view/a23e7101-449d-4fed-a922-cf58323220d3.jpg
> >
> >
> >>
> >> Thanks,
> >>
> >>
> >> On Mon, May 26, 2014 at 3:49 PM, Guillaume "Louis-Marie" Delhumeau <
> >> [email protected]> wrote:
> >>
> >> > Hi!
> >> >
> >> > The current color theme editor is designed for colibri, and does not
> look
> >> > like flamingo does. We have several options here:
> >> > - create a new color theme editor, especially for Flamingo
> >> > - modify the current one to detect which skin is currenlty used, and
> >> change
> >> > the preview.
> >> >
> >> > The application will be splited in 2 sections:
> >> > 1/ a live preview where you can set some variables (what we currenlty
> >> have)
> >> > 2/ a free textarea where the user can fill LESS code (for example,
> some
> >> > code downloaded on bootswatch).
> >> >
> >> > But a lot of applications already use the color theme as it is, via
> the
> >> > "colorThemeInit.vm" template. So we need a retro-compatibility: a
> color
> >> > theme computed by LESS must be usable with old color themes.
> >> >
> >> > Concretly, we will map the old color theme variables to the bootstrap
> >> ones,
> >> > example:
> >> > $theme.notificationSuccessColor = @brand-success
> >> >
> >> > But because of the section 2 (the free textarea), we are not able to
> know
> >> > what will be the final value of a bootstrap variables without parsing
> the
> >> > content of the textarea!
> >> >
> >> > What are the options we have:
> >> > 1/ Implementing our own LESS parser/compiler in Java
> >> > 2/ Trying to reuse the official LESS Parser through Rhino in a way
> that
> >> we
> >> > can get the computed variables
> >> > 3/ Do not parse the input but the ouput: parse the CSS code to get the
> >> > final values of the variables
> >> >
> >> > I'm for 3.
> >> >
> >> > The idea is to create some CSS classes like this:
> >> > .colortheme-bordercolor{
> >> >   color: @border-color;
> >> > }
> >> >
> >> > which will be converted by LESS to:
> >> > .colortheme-bordercolor{
> >> >   color: #000000;
> >> > }
> >> >
> >> > so we can parse it and know the value of $theme.bordercolor. It is
> quick,
> >> > simple, but it pollutes the output CSS a little.
> >> >
> >> > WDYT?
> >> >
> >> > Thanks,
> >> > Guillaume
> >> > _______________________________________________
> >> > devs mailing list
> >> > [email protected]
> >> > http://lists.xwiki.org/mailman/listinfo/devs
> >> >
> >>
> >>
> >>
> >> --
> >> Denis Gervalle
> >> SOFTEC sa - CEO
> >> _______________________________________________
> >> devs mailing list
> >> [email protected]
> >> http://lists.xwiki.org/mailman/listinfo/devs
> >>
> > _______________________________________________
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