Add ShortcodePlugin class

ralsina · ralsina · commit 82e03af71a83 · 2016-08-02T13:03:24.000-03:00
diff --git a/docs/extending.txt b/docs/extending.txt
@@ -577,7 +577,7 @@ So, if you are creating a plugin that generates markup, it may be a good idea
 to register it as a shortcode in addition of to restructured text directive or
 markdown extension, thus making it available to all markup formats.
 
-To implement your own shortcodes from a plugin, you can call
+To implement your own shortcodes from a plugin, you can create a plugin inheriting ``ShortcodePlugin`` and call
 ``Nikola.register_shortcode(name, func)`` with the following arguments:
 
 ``name``:
diff --git a/nikola/nikola.py b/nikola/nikola.py
@@ -66,6 +66,7 @@
     CompilerExtension,
     MarkdownExtension,
     RestExtension,
+    ShortcodePlugin,
     Task,
     TaskMultiplier,
     TemplateSystem,
@@ -892,6 +893,7 @@ def init_plugins(self, commands_only=False, load_all=False):
             "CompilerExtension": CompilerExtension,
             "MarkdownExtension": MarkdownExtension,
             "RestExtension": RestExtension,
+            "ShortcodePlugin": ShortcodePlugin,
             "SignalHandler": SignalHandler,
             "ConfigPlugin": ConfigPlugin,
             "PostScanner": PostScanner,
@@ -990,6 +992,9 @@ def plugin_position_in_places(plugin):
                 self.plugin_manager.activatePluginByName(plugin_info.name)
                 plugin_info.plugin_object.set_site(self)
 
+        # Activate shortcode plugins
+        self._activate_plugins_of_category("ShortcodePlugin")
+
         # Load compiler plugins
         self.compilers = {}
         self.inverse_compilers = {}
diff --git a/nikola/plugin_categories.py b/nikola/plugin_categories.py
@@ -344,6 +344,12 @@ class ConfigPlugin(BasePlugin):
     name = "dummy_config_plugin"
 
 
+class ShortcodePlugin(BasePlugin):
+    """A plugin that adds a shortcode."""
+
+    name = "dummy_shortcode_plugin"
+
+
 class Importer(Command):
     """Basic structure for importing data into Nikola.
 
