Better links to share (to engage page)

weblate/html/share.html

 {% load i18n %}
 
+{% with object.get_share_url as share_url %}
 <p>
-<a href="http://www.facebook.com/sharer.php?u=http://{{ request.get_host }}{{ object.get_absolute_url }}" class="button">{% trans "Share on Facebook!" %}</a>
-<a href="https://twitter.com/share?text={% blocktrans %}Translate {{ object }} using %23Weblate!{% endblocktrans %}" class="button">{% trans "Tweet this translation!" %}</a>
+<a href="http://www.facebook.com/sharer.php?u={{ share_url }}" class="button">{% trans "Share on Facebook!" %}</a>
+<a href="https://twitter.com/share?text={% blocktrans %}Translate {{ object }} using %23Weblate at {{ share_url }}!{% endblocktrans %}" class="button">{% trans "Tweet this translation!" %}</a>
 </p>
+{% endwith %}
 
 <p>
 {% blocktrans %}You can also promote this translation project using various <a href="{{ widgets_url }}">widgets</a>.{% endblocktrans %}

weblate/trans/models.py

@@ -31,6 +31,7 @@ from django.utils.formats import date_format
 from django.contrib.sites.models import Site
 from django.core.cache import cache
 from django.utils import timezone
+from django.core.urlresolvers import reverse
 from glob import glob
 import os
 import time
@@ -301,6 +302,16 @@ class Project(models.Model):
             'project': self.slug
         })
 
+    def get_share_url(self):
+        '''
+        Returns absolute URL usable for sharing.
+        '''
+        site = Site.objects.get_current()
+        return 'http://%s%s' % (
+            site.domain,
+            reverse('engage', kwargs = {'project': self.slug}),
+        )
+
     @models.permalink
     def get_commit_url(self):
         return ('weblate.trans.views.commit_project', (), {
@@ -542,6 +553,16 @@ class SubProject(models.Model):
             'subproject': self.slug
         })
 
+    def get_share_url(self):
+        '''
+        Returns absolute URL usable for sharing.
+        '''
+        site = Site.objects.get_current()
+        return 'http://%s%s' % (
+            site.domain,
+            reverse('engage', kwargs = {'project': self.project.slug}),
+        )
+
     @models.permalink
     def get_commit_url(self):
         return ('weblate.trans.views.commit_subproject', (), {
@@ -1344,6 +1365,16 @@ class Translation(models.Model):
             'lang': self.language.code
         })
 
+    def get_share_url(self):
+        '''
+        Returns absolute URL usable for sharing.
+        '''
+        site = Site.objects.get_current()
+        return 'http://%s%s' % (
+            site.domain,
+            reverse('engage-lang', kwargs = {'project': self.subproject.project.slug, 'lang': self.language.code}),
+        )
+
     @models.permalink
     def get_commit_url(self):
         return ('weblate.trans.views.commit_translation', (), {