add jinja2 support

AUTHORS.rst

@@ -27,6 +27,7 @@ Contributors
 * Leonardo Cavallucci
 * m-vdb
 * Marco Federighi
+* Maxim Filipenko
 * Mirat Can Bayrak
 * Murat Aydos
 * mvergerdelbove

docs/models.rst

@@ -112,6 +112,27 @@ Usage
     </body>
     </html>
 
+#. For Jinja2 support, configure your environment::
+
+
+    from jinja2 import Environment
+    from meta.jinja2 import MetaProxy
+
+    ...
+    env = Environment(**options)
+    env.globals.update({
+        ...
+        'meta_global': MetaProxy()
+    })
+
+
+   And put macro into your templates::
+
+    {% from 'meta/meta.html' import meta_macro with context %}
+    {{ meta_macro() }}
+
+   Jinja2 support is experimental for now, so feel free to tell about any issues.
+
 Note
 ++++
 

meta/jinja2.py

@@ -0,0 +1,26 @@
+from functools import wraps
+
+from django.core.exceptions import ImproperlyConfigured
+try:
+    from jinja2 import Markup
+except ImportError:
+    Markup = None
+
+from .templatetags import meta
+
+
+class MetaProxy(object):
+
+    def __init__(self, *args, **kwargs):
+        if Markup is None:
+            raise ImproperlyConfigured('Jinja2 package is not installed')
+
+    def __getattr__(self, item):
+        f = getattr(meta, item)
+
+        @wraps(f)
+        def wrapped(*args, **kwargs):
+            tag = f(*args, **kwargs)
+            return Markup(tag)
+
+        return wrapped

meta/jinja2/meta/meta.html

@@ -0,0 +1,56 @@
+{% macro meta_macro() -%}
+  {% if meta is defined %}
+    {% if meta.description %}{{ meta_global.meta('description', meta.description) }}{% endif %}
+    {% if meta.keywords %}{{ meta_global.meta_list('keywords', meta.keywords) }}{% endif %}
+    {% if meta.extra_props %}{{ meta_global.meta_extras(meta.extra_props) }}{% endif %}
+    {% if meta.extra_custom_props %}{{ meta_global.custom_meta_extras(meta.extra_custom_props) }}{% endif %}
+    {% if meta.use_title_tag %}
+        {% if meta.title %}{{ meta_global.title_prop(meta.title) }}{% endif %}
+    {% endif %}
+    {% if meta.use_og %}
+        {% if meta.title %}{{ meta_global.og_prop('title', meta.title) }}{% endif %}
+        {% if meta.url %}{{ meta_global.og_prop('url', meta.url) }}{% endif %}
+        {% if meta.og_description %}{{ meta_global.og_prop('description', meta.og_description) }}
+        {% elif meta.description %}{{ meta_global.og_prop('description', meta.description) }}{% endif %}
+        {% if meta.image %}{{ meta_global.og_prop('image', meta.image) }}{% endif %}
+        {% if meta.og_type %}{{ meta_global.og_prop('type', meta.og_type) }}
+        {% elif meta.object_type %}{{ meta_global.og_prop('type', meta.object_type) }}{% endif %}
+        {% if meta.site_name %}{{ meta_global.og_prop('site_name', meta.site_name) }}{% endif %}
+        {% if meta.og_author_url %}{{ meta_global.generic_prop('article', 'author', meta.og_author_url) }}
+        {% elif meta.og_author %}{{ meta_global.generic_prop('article', 'author', meta.og_author) }}{% endif %}
+        {% if meta.published_time %}{{ meta_global.generic_prop('article', 'published_time', meta.published_time) }}{% endif %}
+        {% if meta.modified_time %}{{ meta_global.generic_prop('article', 'modified_time', meta.modified_time) }}{% endif %}
+        {% if meta.expiration_time %}{{ meta_global.generic_prop('article', 'expiration_time', meta.expiration_time) }}{% endif %}
+        {% if meta.og_publisher %}{{ meta_global.generic_prop('article', 'publisher', meta.og_publisher) }}{% endif %}
+        {% if meta.og_app_id %}{{ meta_global.facebook_prop('app_id', meta.og_app_id) }}
+        {% elif meta.facebook_app_id %}{{ meta_global.facebook_prop('app_id', meta.facebook_app_id) }}{% endif %}
+        {% if meta.fb_pages %}{{ meta_global.facebook_prop('pages', meta.fb_pages) }}{% endif %}
+        {% if meta.og_profile_id %}{{ meta_global.facebook_prop('profile_id', meta.og_profile_id) }}{% endif %}
+        {% if meta.tag %}{{ meta_global.generic_prop('article', 'tag', meta.tag) }}{% endif %}
+        {% if meta.locale %}{{ meta_global.og_prop('locale', meta.locale) }}{% endif %}
+    {% endif %}
+    {% if meta.use_twitter %}
+        {{ meta_global.twitter_prop('domain', meta.get_domain) }}
+        {% if meta.twitter_type %}{{ meta_global.twitter_prop('card', meta.twitter_type) }}
+        {% elif meta.twitter_card %}{{ meta_global.twitter_prop('card', meta.twitter_card) }}{% endif %}
+        {% if meta.title %}{{ meta_global.twitter_prop('title', meta.title) }}{% endif %}
+        {% if meta.url %}{{ meta_global.twitter_prop('url', meta.url) }}{% endif %}
+        {% if meta.twitter_description %}{{ meta_global.twitter_prop('description', meta.twitter_description) }}
+        {% elif meta.description %}{{ meta_global.twitter_prop('description', meta.description) }}{% endif %}
+        {% if meta.image %}{{ meta_global.twitter_prop('image', meta.image) }}{% endif %}
+        {% if meta.twitter_creator %}{{ meta_global.twitter_prop('creator', meta.twitter_creator) }}{% endif %}
+        {% if meta.twitter_site %}{{ meta_global.twitter_prop('site', meta.twitter_site) }}{% endif %}
+    {% endif %}
+    {% if meta.use_googleplus %}
+        {% if meta.gplus_author %}<link rel="author" href="https://plus.google.com/{{ meta.gplus_author }}"/>{% endif %}
+        {% if meta.gplus_publisher %}<link rel="publisher" href="https://plus.google.com/{{ meta.gplus_publisher }}"/>{% endif %}
+        {% if meta.title %}{{ meta_global.googleplus_prop('name', meta.title) }}{% endif %}
+        {% if meta.published_time %}{{ meta_global.googleplus_prop('datePublished', meta.published_time) }}{% endif %}
+        {% if meta.modified_time %}{{ meta_global.googleplus_prop('dateModified', meta.modified_time) }}{% endif %}
+        {% if meta.url %}{{ meta_global.googleplus_prop('url', meta.url) }}{% endif %}
+        {% if meta.gplus_description %}{{ meta_global.googleplus_prop('description', meta.gplus_description) }}
+        {% elif meta.description %}{{ meta_global.googleplus_prop('description', meta.description) }}{% endif %}
+        {% if meta.image %}{{ meta_global.googleplus_prop('image', meta.image) }}{% endif %}
+      {% endif %}
+  {% endif %}
+{%- endmacro %}