[themes] theme dependencies

[David Landry]

Ahh, yes a module can declare theme hooks so that other things can theme the
output of the module. It's perfectly safe to use these module-specific theme
hooks in your theme because of the way the drupal hook system works. As far
as the PHP parser is concerned, you're just declaring a new function. If the
module that uses that theme hook is present, it'll call that function to
theme its output. If the module that uses that theme hook isn't there, the
function will never be called.

David Landry

On Fri, Sep 2, 2011 at 10:06 PM, Warren Vail <warren at vailtech.net> wrote:

> ** **
>
> Sorry I miss spoke (or typed).****
>
> ** **
>
> There is mention in many of the Drupal programming books of theming
> functions that can be invoked by a module.  I don’t understand them fully
> yet, but I believe some of them are standard and others may not be.  I
> believe the idea is to make sure the theming is kept separate from the data,
> even if some of the theming is data dependent (something that proponents of
> separation tend discount), a compromise at best.****
>
> ** **
>
> *Warren Vail*****
>   ------------------------------
>
> *From:* themes-bounces at drupal.org [mailto:themes-bounces at drupal.org] *On
> Behalf Of *David Landry
> *Sent:* Thursday, September 01, 2011 5:03 PM
>
> *To:* A list for theme developers
> *Subject:* Re: [themes] theme dependencies
> ****
>
>  ** **
>
> ****Warren****,****
>
> ** **
>
> I'm not sure I understand what you mean by "theming modules." The first
> thing that comes to mind is something like HTML5 Tools<http://drupal.org/project/html5_tools>.
> The HTML5 Base <http://drupal.org/project/html5_base> theme is "designed
> to go with HTML5 Tools," but HTML5 Tools does its magic before anything
> reaches the theme layer, leaving no reason for the theme to call any HTML5
> Tools functions.****
>
> ** **
>
> David Landry****
>
> ** **
>
> On Thu, Sep 1, 2011 at 4:38 PM, Warren Vail <warren at vailtech.net> wrote:**
> **
>
> David,****
>
>  ****
>
> Doesn’t the opposite exist where modules request specific theming modules?
> Is there a standard set of theming modules yet, or must you just test to see
> if the function exists?****
>
>  ****
>
> *Warren Vail*****
>
>  ****
>
> *From:* themes-bounces at drupal.org [mailto:themes-bounces at drupal.org] *On
> Behalf Of *David Landry
> *Sent:* Thursday, September 01, 2011 2:17 PM
> *To:* A list for theme developers
> *Subject:* Re: [themes] theme dependencies****
>
>  ****
>
> It's bad practice for themes to have module dependencies like that. There
> is no centralized standard for tracking modules that a theme depends on.
> You'll have to go through the entire theme looking for references to
> modules.****
>
>  ****
>
> If you want to be kind to the next person who has to maintain the site, you
> could break out any template code that has module dependency as a custom
> module or Feature, so that the module dependencies can be declared.****
>
>  ****
>
> David Landry****
>
> On Thu, Sep 1, 2011 at 3:09 PM, Bert Van Kets <mailing at vankets.com> wrote:
> ****
>
> Hi all,
>
> is there any easy way to know what modules a theme is depending on?
> I have a theme from a Drupal 6 site with a multitude of installed
> modules. When I use the theme on a plain vanilla Drupal install a blank
> page is installed.
> I really do not want to go through all the tpl files to see what modules
> are referenced. How is a problem like this tackled?
>
> Thanks.
>
> Bert
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