[sharing] Add's 'Share to Facebook' capability

This also sets the foundations for adding sharing
capabilities for other services out there.

I guess this is mainly RFC for now, some thinking
is needed for the whole workflow of sharing out and
into the Journal.

5 files changed, 136 insertions, 1 deletions

diff --git a/extensions/cpsection/Makefile.am b/extensions/cpsection/Makefile.am
index a92b5dd..0c4e852 100644
--- a/extensions/cpsection/Makefile.am
+++ b/extensions/cpsection/Makefile.am
@@ -1,5 +1,5 @@
 SUBDIRS = aboutme aboutcomputer datetime frame keyboard language \
-    modemconfiguration network power updater
+    modemconfiguration network power updater facebook
 
 sugardir = $(pkgdatadir)/extensions/cpsection
 sugar_PYTHON = __init__.py
diff --git a/extensions/cpsection/facebook/Makefile.am b/extensions/cpsection/facebook/Makefile.am
new file mode 100644
index 0000000..471c047
--- /dev/null
+++ b/extensions/cpsection/facebook/Makefile.am
@@ -0,0 +1,7 @@
+sugardir = $(pkgdatadir)/extensions/cpsection/facebook
+
+sugar_PYTHON = 		\
+	__init__.py	\
+	model.py	\
+	view.py
+
diff --git a/extensions/cpsection/facebook/__init__.py b/extensions/cpsection/facebook/__init__.py
new file mode 100644
index 0000000..28c0cca
--- /dev/null
+++ b/extensions/cpsection/facebook/__init__.py
@@ -0,0 +1,21 @@
+# Copyright (C) 2013, Walter Bender - Raul Gutierrez Segales
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+
+from gettext import gettext as _
+
+CLASS = 'FacebookConfig'
+ICON = 'facebook-share'
+TITLE = _('Configure your Facebook account')
diff --git a/extensions/cpsection/facebook/model.py b/extensions/cpsection/facebook/model.py
new file mode 100644
index 0000000..6eed773
--- /dev/null
+++ b/extensions/cpsection/facebook/model.py
@@ -0,0 +1,30 @@
+# Copyright (C) 2013 Walter Bender - Raul Gutierrez Segales
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+
+from gettext import gettext as _
+from gi.repository import GConf
+
+import time
+
+from jarabe.util import facebook_online_account as fboa
+
+def save_access_token(access_token, expires_in):
+    client = GConf.Client.get_default()
+    client.set_string(fboa.FacebookOnlineAccount.ACCESS_TOKEN_KEY, access_token)
+    expiry_time = int(time.time()) + expires_in
+    client.set_int(fboa.FacebookOnlineAccount.ACCESS_TOKEN_KEY_EXPIRATION_DATE,
+                   expiry_time)
diff --git a/extensions/cpsection/facebook/view.py b/extensions/cpsection/facebook/view.py
new file mode 100644
index 0000000..fa394f7
--- /dev/null
+++ b/extensions/cpsection/facebook/view.py
@@ -0,0 +1,77 @@
+# Copyright (C) 2013, Walter Bender - Raul Gutierrez Segales
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+
+from gi.repository import Gtk
+from gi.repository import GObject
+from gi.repository import WebKit
+
+import urllib
+import urlparse
+
+from gettext import gettext as _
+
+from jarabe.controlpanel.sectionview import SectionView
+
+class FacebookConfig(SectionView):
+    APP_ID = "172917389475707"
+    REDIRECT_URI = "http://www.sugarlabs.org"
+
+    def __init__(self, model, alerts):
+        SectionView.__init__(self)
+
+        self._model = model
+        self.restart_alerts = alerts
+
+        scrolled = Gtk.ScrolledWindow()
+        self.add(scrolled)
+        scrolled.set_policy(Gtk.PolicyType.NEVER, Gtk.PolicyType.AUTOMATIC)
+        scrolled.show()
+
+        workspace = Gtk.VBox()
+        scrolled.add_with_viewport(workspace)
+        workspace.show()
+
+        wkv = WebKit.WebView()
+        wkv.load_uri(self._auth_url())
+        wkv.grab_focus()
+        wkv.connect('navigation-policy-decision-requested', self._nav_policy_cb)
+        workspace.add(wkv)
+        workspace.show_all()
+
+    def undo(self):
+        pass
+
+    def _auth_url(self):
+        url = 'http://www.facebook.com/dialog/oauth'
+        params = [
+            ('client_id', self.APP_ID),
+            ('redirect_uri', self.REDIRECT_URI),
+            ('response_type', 'token'),
+            ('scope', 'publish_stream')
+            ]
+
+        return "%s?%s" % (url, urllib.urlencode(params))
+
+    def _nav_policy_cb(self, view, frame, req, action, param):
+        uri = req.get_uri()
+        if uri is None:
+            return
+
+        url_o = urlparse.urlparse(uri)
+        params = urlparse.parse_qs(url_o.fragment)
+        if params.has_key('access_token') and params.has_key('expires_in'):
+            self._model.save_access_token(params['access_token'][0],
+                                          int(params['expires_in'][0]))