app: add shell provider implementation skeleton

data/Makefile.am

@@ -45,6 +45,7 @@ EXTRA_DIST=                     \
   org.gnome.Calendar.search-provider.ini.in.in \
   org.gnome.Calendar.desktop    \
   calendar.gresource.xml        \
+  shell-search-provider-dbus-interfaces.xml \
   ui/date-selector.ui           \
   ui/edit-dialog.ui             \
   ui/menus.ui                   \

data/shell-search-provider-dbus-interfaces.xml

@@ -0,0 +1,44 @@
+<!DOCTYPE node PUBLIC
+"-//freedesktop//DTD D-BUS Object Introspection 1.0//EN"
+"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd">
+
+<!--
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General
+ Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
+-->
+<node name="/" xmlns:doc="http://www.freedesktop.org/dbus/1.0/doc.dtd">
+  <interface name='org.gnome.Shell.SearchProvider2'>
+    <method name='GetInitialResultSet'>
+      <arg type='as' name='Terms' direction='in' />
+      <arg type='as' name='Results' direction='out' />
+    </method>
+    <method name = 'GetSubsearchResultSet'>
+      <arg type='as' name='PreviousResults' direction='in' />
+      <arg type='as' name='Terms' direction='in' />
+      <arg type='as' name='Results' direction='out' />
+    </method>
+    <method name = 'GetResultMetas'>
+      <arg type='as' name='Results' direction='in' />
+      <arg type='aa{sv}' name='Metas' direction='out' />
+    </method>
+    <method name = 'ActivateResult'>
+      <arg type='s' name='Result' direction='in' />
+      <arg type='as' name='Terms' direction='in' />
+      <arg type='u' name='Timestamp' direction='in' />
+    </method>
+    <method name = 'LaunchSearch'>
+      <arg type='as' name='Terms' direction='in' />
+      <arg type='u' name='Timestamp' direction='in' />
+    </method>
+  </interface>
+</node>