299 lines
13 KiB
Markdown
299 lines
13 KiB
Markdown
# Themes
|
|
|
|
* [Home](help)
|
|
|
|
To change the look of friendica you have to touch the themes.
|
|
The current default theme is [Vier](https://github.com/friendica/friendica/tree/master/view/theme/vier) but there are numerous others.
|
|
Have a look at [friendica-themes.com](http://friendica-themes.com) for an overview of the existing themes.
|
|
In case none of them suits your needs, there are several ways to change a theme.
|
|
|
|
So, how to work on the UI of friendica.
|
|
|
|
You can either directly edit an existing theme.
|
|
But you might loose your changes when the theme is updated by the friendica team.
|
|
|
|
If you are almost happy with an existing theme, the easiest way to cover your needs is to create a new theme, inheritating most of the properties of the parent theme and change just minor stuff.
|
|
The below for a more detailed description of theme heritage.
|
|
|
|
Some themes also allow users to select *variants* of the theme.
|
|
Those theme variants most often contain an additional [CSS](https://en.wikipedia.org/wiki/CSS) file to override some styling of the default theme values.
|
|
From the themes in the main repository *duepunto zero* and *vier* are using this methods for variations.
|
|
Quattro is using a slightly different approach.
|
|
|
|
Third you can start your theme from scratch.
|
|
Which is the most complex way to change friendicas look.
|
|
But it leaves you the most freedom.
|
|
So below for a *detailed* description and the meaning of some special files.
|
|
|
|
### Styling
|
|
|
|
If you want to change the styling of a theme, have a look at the themes CSS file.
|
|
In most cases, you can found these in
|
|
|
|
/view/theme/**your-theme-name**/style.css
|
|
|
|
sometimes, there is also a file called style.php in the theme directory.
|
|
This is only needed if the theme allowes the user to change certain things of the theme dynamically.
|
|
Say the font size or set a background image.
|
|
|
|
### Templates
|
|
|
|
If you want to change the structure of the theme, you need to change the templates used by the theme.
|
|
Friendica themes are using [SMARTY3](http://www.smarty.net/) for templating.
|
|
The default template can be found in
|
|
|
|
/view/templates
|
|
|
|
if you want to override any template within your theme create your version of the template in
|
|
|
|
/view/theme/**your-theme-name**/templates
|
|
|
|
any template that exists there will be used instead of the default one.
|
|
|
|
### Javascript
|
|
|
|
The same rule applies to the JavaScript files found in
|
|
|
|
/js
|
|
|
|
they will be overwritten by files in
|
|
|
|
/view/theme/**your-theme-name**/js.
|
|
|
|
## Expand an existing Theme
|
|
|
|
### Theme Variations
|
|
|
|
Many themes are more *theme families* than only one theme.
|
|
*duepunto zero* and *vier* allow easily to add new theme variation.
|
|
We will go through the process of creating a new variation for *duepunto zero*.
|
|
The same (well almost, some names change) procedure applies to the *vier* theme.
|
|
And similar steps are needed for *quattro* but this theme is using [lesscss](http://lesscss.org/#docs) to maintain the CSS files..
|
|
|
|
In
|
|
|
|
/view/theme/duepuntozero/deriv
|
|
|
|
you find a couple of CSS files that define color derivations from the duepunto theme.
|
|
These resemble some of the now as unsupported marked themes, that were inherited by the duepunto theme.
|
|
Darkzero and Easter Bunny for example.
|
|
|
|
The selection of the colorset is done in a combination of a template for a new form in the settings and aome functions in the theme.php file.
|
|
The template (theme_settings.tpl)
|
|
|
|
{{include file="field_select.tpl" field=$colorset}}
|
|
<div class="settings-submit-wrapper">
|
|
<input type="submit" value="{{$submit}}" class="settings-submit" name="duepuntozero-settings-submit" />
|
|
</div>
|
|
|
|
defines a formular consisting of a [select](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/select) pull-down which contains all aviable variants and s submit button.
|
|
See the documentation about [SMARTY3 templates](/help/snarty3-templates.md) for a summary of friendica specific blocks other than the select element.
|
|
But we don't really need to change anything at the template itself.
|
|
|
|
The template alone wont work though.
|
|
You make friendica aware of its existance and tell it how to use the template file, by defining a config.php file.
|
|
It needs to define at least the following functions
|
|
|
|
* theme_content
|
|
* theme_post
|
|
|
|
and may also define functions for the admin interface
|
|
|
|
* theme_admin
|
|
* theme_admin_post.
|
|
|
|
theme_content and theme_admin are used to make the form available in the settings, repectively the admin panel.
|
|
The _post functions handle the processing of the send form, in this case they save to selected variand in friendicas database.
|
|
|
|
To make your own variation appear in the menu, all you need to do is to create a new CSS file in the deriv directoy and include it in the array in the config.php:
|
|
|
|
$colorset = array(
|
|
'default'=>DI::l10n()->t('default'),
|
|
'greenzero'=>DI::l10n()->t('greenzero'),
|
|
'purplezero'=>DI::l10n()->t('purplezero'),
|
|
'easterbunny'=>DI::l10n()->t('easterbunny'),
|
|
'darkzero'=>DI::l10n()->t('darkzero'),
|
|
'comix'=>DI::l10n()->t('comix'),
|
|
'slackr'=>DI::l10n()->t('slackr'),
|
|
);
|
|
|
|
the 1st part of the line is the name of the CSS file (without the .css) the 2nd part is the common name of the variant.
|
|
Calling the DI::l10n()->t() function with the common name makes the string translateable.
|
|
The selected 1st part will be saved in the database by the theme_post function.
|
|
|
|
function theme_post(App $a){
|
|
// non local users shall not pass
|
|
if (! local_user()) {
|
|
return;
|
|
}
|
|
// if the one specific submit button was pressed then proceed
|
|
if (isset($_POST['duepuntozero-settings-submit'])){
|
|
// and save the selection key into the personal config of the user
|
|
DI::pConfig()->set(local_user(), 'duepuntozero', 'colorset', $_POST['duepuntozero_colorset']);
|
|
}
|
|
}
|
|
|
|
Now that this information is set in the database, what should friendica do with it?
|
|
For this, have a look at the theme.php file of the *duepunto zero*.
|
|
There you'll find somethink alike
|
|
|
|
$colorset = DI::pConfig()->get( local_user(), 'duepuntozero','colorset');
|
|
if (!$colorset)
|
|
$colorset = DI::config()->get('duepuntozero', 'colorset');
|
|
if ($colorset) {
|
|
if ($colorset == 'greenzero')
|
|
DI::page()['htmlhead'] .= '<link rel="stylesheet" href="view/theme/duepuntozero/deriv/greenzero.css" type="text/css" media="screen" />'."\n";
|
|
/* some more variants */
|
|
}
|
|
|
|
which tells friendica to get the personal config of a user.
|
|
Check if it is set and if not look for the global config.
|
|
And finally if a config for the colorset was found, apply it by adding a link to the CSS file into the HTML header of the page.
|
|
So you'll just need to add a if selection, fitting your variant keyword and link to the CSS file of it.
|
|
|
|
Done.
|
|
Now you can use the variant on your system.
|
|
But remember once the theme.php or the config.php you have to readd your variant to them.
|
|
If you think your color variation could be benifical for other friendica users as well, feel free to generate a pull request at github so we can include your work into the repository.
|
|
|
|
### Inheritation
|
|
|
|
Say, you like the duepuntozero but you want to have the content of the outer columns left and right exchanged.
|
|
That would be not a color variation as shown above.
|
|
Instead we will create a new theme, duepuntozero_lr, inherit the properties of duepuntozero and make small changes to the underlying php files.
|
|
|
|
So create a directory called duepunto_lr and create a file called theme.php with your favorite text editor.
|
|
The content of this file should be something like
|
|
|
|
<?php
|
|
/* meta informations for the theme, see below */
|
|
use Friendica\App;
|
|
|
|
function duepuntozero_lr_init(App $a) {
|
|
$a-> theme_info = array(
|
|
'extends' => 'duepuntozero'.
|
|
);
|
|
$a->set_template_engine('smarty3');
|
|
/* and more stuff e.g. the JavaScript function for the header */
|
|
}
|
|
|
|
Next take the default.php file found in the /view direcotry and exchange the aside and right_aside elements.
|
|
So the central part of the file now looks like this:
|
|
|
|
<body>
|
|
<?php if(!empty($page['nav'])) echo $page['nav']; ?>
|
|
<aside><?php if(!empty($page['right_aside'])) echo $page['right_aside']; ?></aside>
|
|
<section><?php if(!empty($page['content'])) echo $page['content']; ?>
|
|
<div id="page-footer"></div>
|
|
</section>
|
|
<right_aside><?php if(!empty($page['aside'])) echo $page['aside']; ?></right_aside>
|
|
<footer><?php if(!empty($page['footer'])) echo $page['footer']; ?></footer>
|
|
</body>
|
|
|
|
Finally we need a style.css file, inheriting the definitions from the parent theme and containing out changes for the new theme.
|
|
***Note***:You need to create the style.css and at lest import the base CSS file from the parent theme.
|
|
|
|
@import url('../duepuntozero/style.css');
|
|
|
|
Done.
|
|
But I agree it is not really useful at this state.
|
|
Nevertheless, to use it, you just need to activate in the admin panel.
|
|
That done, you can select it in the settings like any other activated theme.
|
|
|
|
## Creating a Theme from Scratch
|
|
|
|
Keep patient.
|
|
Basically what you have to do is identify which template you have to change so it looks more like what you want.
|
|
Adopt the CSS of the theme accordingly.
|
|
And iterate the process until you have the theme the way you want it.
|
|
|
|
*Use the source Luke.* and don't hesitate to ask in @[developers](https://forum.friendi.ca/profile/developers) or @[helpers](https://forum.friendi.ca/profile/helpers).
|
|
|
|
## Special Files
|
|
|
|
### unsupported
|
|
|
|
If a file with this name (which might be empty) exists in the theme directory, the theme is marked as *unsupported*.
|
|
An unsupported theme may not be selected by a user in the settings.
|
|
Users who are already using it wont notice anything.
|
|
|
|
### README(.md)
|
|
|
|
The contents of this file, with or without the .md which indicates [Markdown](https://daringfireball.net/projects/markdown/) syntax, will be displayed at most repository hosting services and in the theme page within the admin panel of friendica.
|
|
|
|
This file should contain information you want to let others know about your theme.
|
|
|
|
### screenshot.[png|jpg]
|
|
|
|
If you want to have a preview image of your theme displayed in the settings you should take a screenshot and save it with this name.
|
|
Supported formats are PNG and JPEG.
|
|
|
|
### theme.php
|
|
|
|
This is the main definition file of the theme.
|
|
In the header of that file, some meta information is stored.
|
|
For example, have a look at the theme.php of the *quattro* theme:
|
|
|
|
<?php
|
|
/**
|
|
* Name: Quattro
|
|
* Version: 0.6
|
|
* Author: Fabio <http://kirgroup.com/profile/fabrixxm>
|
|
* Maintainer: Fabio <http://kirgroup.com/profile/fabrixxm>
|
|
* Maintainer: Tobias <https://f.diekershoff.de/profile/tobias>
|
|
*/
|
|
|
|
You see the definition of the theme's name, it's version and the initial author of the theme.
|
|
These three pieces of information should be listed.
|
|
If the original author is no longer working on the theme, but a maintainer has taken over, the maintainer should be listed as well.
|
|
The information from the theme header will be displayed in the admin panel.
|
|
|
|
The first thing in file is to import the `App` class from `\Friendica\` namespace.
|
|
|
|
use Friendica\App;
|
|
|
|
This will make our job a little easier, as we don't have to specify the full name every time we need to use the `App` class.
|
|
|
|
The next crucial part of the theme.php file is a definition of an init function.
|
|
The name of the function is <theme-name>_init.
|
|
So in the case of quattro it is
|
|
|
|
function quattro_init(App $a) {
|
|
$a->theme_info = array();
|
|
$a->set_template_engine('smarty3');
|
|
}
|
|
|
|
Here we have set the basic theme information, in this case they are empty.
|
|
But the array needs to be set.
|
|
And we have set the template engine that should be used by friendica for this theme.
|
|
At the moment you should use the *smarty3* engine.
|
|
There once was a friendica specific templating engine as well but that is not used anymore.
|
|
If you like to use another templating engine, please implement it.
|
|
|
|
When you want to inherit stuff from another theme you have to *announce* this in the theme_info:
|
|
|
|
$a->theme_info = array(
|
|
'extends' => 'duepuntozero',
|
|
);
|
|
|
|
which declares *duepuntozero* as parent of the theme.
|
|
|
|
If you want to add something to the HTML header of the theme, one way to do so is by adding it to the theme.php file.
|
|
To do so, add something alike
|
|
|
|
DI::page()['htmlhead'] .= <<< EOT
|
|
/* stuff you want to add to the header */
|
|
EOT;
|
|
|
|
The $a variable holds the friendica application.
|
|
So you can access the properties of this friendica session from the theme.php file as well.
|
|
|
|
### default.php
|
|
|
|
This file covers the structure of the underlying HTML layout.
|
|
The default file is in
|
|
|
|
/view/default.php
|
|
|
|
if you want to change it, say adding a 4th column for banners of your favourite FLOSS projects, place a new default.php file in your theme directory.
|
|
As with the theme.php file, you can use the properties of the $a variable with holds the friendica application to decide what content is displayed.
|