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server: default theme can now be specified in site section of `sat.conf` with `theme` key
author Goffi <goffi@goffi.org>
date Fri, 19 Jun 2020 16:47:50 +0200
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1 Libervia CSS Framework
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2 ======================
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5 Libervia comes with generic CSS styling which is thought to be re-usable. If you create a new theme/site, you don't have to use it and can use something totally different, but building on top of Libervia CSS make theming more easy and consistent as you can re-use existant components without changing the classes.
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7 Bases
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8 -----
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9 All CSS files must be in the ``static`` directory of your theme. Following names are assumed to be in this directory.
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11 Libervia may link one to several style sheets when it renders a template. It will always links the following file (if they exist):
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12 - ``fonts.css`` (fonts loading)
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13 - ``styles.css`` (main CSS style, see below)
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14 - ``styles_extra`` (customizations of main style)
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16 Then it will link styles relative to the current theme (where path is joined with a ``_``). For instance, if your template is ``blog/article.html``, the following files will be linked (in this order, and if they exists):
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17 - ``blog.css``
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18 - ``blog_article.css``
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20 You can suffix any style sheet (but ``fonts.css``) with ``_noscript``: this suffixed file will be loaded only when javascript is not available, allowing to adapt your template to such case.
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22 The main CSS styling is ``styles.css``, it contains styles for every major elements used in Libervia.
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23 CSS in Libervia follows ``BEM`` (Block Element Modifier) conventions.
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25 If you create a new theme, you should not touch ``styles.css``, but work on ``styles_extra.css`` instead. The later doesn't exist in default Libervia theme on purpose.
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27 There are a few "magic" classes, which imply some DOM modification when Javascript is enabled, see below.
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28 Last but not least, there is also a "state system", i.e. classes which are dynamically changed during runtime.
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30 Magic Classes
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31 -------------
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32 Magic classes are classes which imply a modification of DOM when the page is loaded and Javascript is activated.
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33 The modification is done by a script launched by ``base/base.html``.
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34 There are only a few of them:
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36 box--expand
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37 When this class is applied, the box will be folded when higher than 250px, and 2 "expand zone" (buttons)
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38 will be added on top and bottom of the box to expand/reduce it.
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40 state_init
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41 This is linked to state system (see below). When applied, the element will keep the ``state_init`` class until
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42 clicked for the first time, then it will apply other magic classes effects if suitable.
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44 State System
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45 ------------
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46 A basic state system is used to do some dynamic operation (like (un)folding a box). The two main states are:
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48 state_init
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49 This class is present until first clicked
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51 state_clicked
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52 This state is used with some magic classes (e.g. ``box-expand``) or when a clicking method from ``common.js``
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53 is used on an element (e.g. ``clicked_cls``). The classes is toggled on each click.
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55 Some classes are used to manipulate elements according to state:
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57 show_if_init
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58 Display this class only if in ``state_init``.
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60 show_if_parent_clicked
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61 display this class only if **parent** is in ``state_clicked``
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63 show_if_parent_not_clicked
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64 display this class only if **parent** is **not** in ``state_clicked``
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66 show_if_grandparent_clicked
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67 display this class only if **grandparent** is in ``state_clicked``
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69 show_if_grandparent_not_clicked
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70 display this class only if **grandparent** is **not** in ``state_clicked``