Drop THEME_REVEAL_CONFIG_* settings (#2485)

Signed-off-by: Chris Warrick <kwpolska@gmail.com>

CHANGES.txt

@@ -13,6 +13,8 @@ Math support changes
 Features
 --------
 
+* Get rid of ``THEME_REVEAL_CONFIG_*`` settings, use global context
+  instead (Issue #2485)
 * Add a list of template variables to documentation (Issues #2328,
   #2712, #2259) and update the theming reference (Issue #2259)
 * Add ``{post_title}`` tag for Read More links (Issue #2709)

docs/template-variables.rst

@@ -99,11 +99,9 @@ Name                                Type                                Descript
 ``SLUG_TAG_PATH``                   bool                                ``SLUG_TAG_PATH`` setting
 ``social_buttons_code``             TranslatableSetting<str>            ``SOCIAL_BUTTONS_CODE`` setting
 ``sort_posts``                      function                            ``utils.sort_posts`` function
-``subtheme``                        str                                 ``THEME_REVEAL_CONFIG_SUBTHEME`` setting
 ``template_hooks``                  dict<str, TemplateHookRegistry>     Template hooks registered by plugins
 ``theme_color``                     str                                 ``THEME_COLOR`` setting
 ``timezone``                        tzinfo                              Timezone object (represents the configured timezone)
-``transition``                      str                                 ``THEME_REVEAL_CONFIG_TRANSITION`` setting
 ``translations``                    dict<str, str>                      ``TRANSLATIONS`` setting
 ``twitter_card``                    dict                                ``TWITTER_CARD`` setting, defaults to an empty dictionary
 ``url_replacer``                    function                            ``Nikola.url_replacer`` function
@@ -113,6 +111,8 @@ Name                                Type                                Descript
 ``use_cdn``                         bool                                ``USE_CDN`` setting
 ``use_katex``                       bool                                ``USE_KATEX`` setting
 ``use_open_graph``                  bool                                ``USE_OPEN_GRAPH`` setting, defaults to True
+``subtheme``                        str?                                ``THEME_REVEAL_CONFIG_SUBTHEME`` setting (only if set — deprecated)
+``transition``                      str?                                ``THEME_REVEAL_CONFIG_TRANSITION`` setting (only if set — deprecated)
 ==================================  ==================================  ================================================================================
 
 Per-page local variables

nikola/conf.py.in

@@ -777,15 +777,6 @@ IMAGE_FOLDERS = {'images': 'images'}
 # This list MAY be incomplete since pygments adds styles every now and then.
 # CODE_COLOR_SCHEME = 'default'
 
-# If you use 'site-reveal' theme you can select several subthemes
-# THEME_REVEAL_CONFIG_SUBTHEME = 'sky'
-# You can also use: beige/serif/simple/night/default
-
-# Again, if you use 'site-reveal' theme you can select several transitions
-# between the slides
-# THEME_REVEAL_CONFIG_TRANSITION = 'cube'
-# You can also use: page/concave/linear/none/default
-
 # FAVICONS contains (name, file, size) tuples.
 # Used to create favicon link like this:
 # <link rel="name" href="file" sizes="size"/>

nikola/nikola.py

@@ -595,8 +595,6 @@ def __init__(self, **config):
             'TEMPLATE_FILTERS': {},
             'THEME': 'bootstrap3',
             'THEME_COLOR': '#5670d4',  # light "corporate blue"
-            'THEME_REVEAL_CONFIG_SUBTHEME': 'sky',
-            'THEME_REVEAL_CONFIG_TRANSITION': 'cube',
             'THUMBNAIL_SIZE': 180,
             'UNSLUGIFY_TITLES': False,  # WARNING: conf.py.in overrides this with True for backwards compatibility
             'URL_TYPE': 'rel_path',
@@ -946,6 +944,14 @@ def __init__(self, **config):
             utils.LOGGER.warn('The POSTS_SECTION_ARE_INDEXES option is deprecated, use POSTS_SECTIONS_ARE_INDEXES instead.')
             self.config['POSTS_SECTIONS_ARE_INDEXES'] = config['POSTS_SECTION_ARE_INDEXES']
 
+        # TODO: remove in v8, or earlier
+        if ('THEME_REVEAL_CONFIG_SUBTHEME' in config or 'THEME_REVEAL_CONFIG_TRANSITION' in config or
+                (self.config['THEME'] in ('reveal', 'reveal-jinja') and
+                 ('subtheme' not in config.GLOBAL_CONTEXT or 'transition' not in config.GLOBAL_CONTEXT))):
+            utils.LOGGER.warn('The THEME_REVEAL_CONFIG_* settings are deprecated. Use `subtheme` and `transition` in GLOBAL_CONTEXT instead.')
+            self._GLOBAL_CONTEXT['subtheme'] = config.get('THEME_REVEAL_CONFIG_SUBTHEME', 'sky')
+            self._GLOBAL_CONTEXT['transition'] = config.get('THEME_REVEAL_CONFIG_TRANSITION', 'cube')
+
         # Configure filters
         for actions in self.config['FILTERS'].values():
             for i, f in enumerate(actions):
@@ -1230,8 +1236,6 @@ def _set_global_context_from_config(self):
             'MATHJAX_CONFIG')
         self._GLOBAL_CONTEXT['use_katex'] = self.config.get('USE_KATEX')
         self._GLOBAL_CONTEXT['katex_auto_render'] = self.config.get('KATEX_AUTO_RENDER')
-        self._GLOBAL_CONTEXT['subtheme'] = self.config.get('THEME_REVEAL_CONFIG_SUBTHEME')
-        self._GLOBAL_CONTEXT['transition'] = self.config.get('THEME_REVEAL_CONFIG_TRANSITION')
         self._GLOBAL_CONTEXT['content_footer'] = self.config.get(
             'CONTENT_FOOTER')
         self._GLOBAL_CONTEXT['generate_atom'] = self.config.get('GENERATE_ATOM')