Add profile button to add contact dialog

This lets the user query the VCard of the contact before adding

gajim/data/gui/add_new_contact_window.ui

@@ -16,6 +16,11 @@
       <column type="gchararray"/>
     </columns>
   </object>
+  <object class="GtkImage" id="image1">
+    <property name="visible">True</property>
+    <property name="can_focus">False</property>
+    <property name="icon_name">user-info-symbolic</property>
+  </object>
   <object class="GtkTextBuffer" id="message_textbuffer">
     <property name="text" translatable="yes">I would like to add you to my contact list.</property>
     <signal name="end-user-action" handler="on_message_textbuffer_changed" swapped="no"/>
@@ -144,6 +149,7 @@
           <packing>
             <property name="left_attach">1</property>
             <property name="top_attach">3</property>
+            <property name="width">2</property>
           </packing>
         </child>
         <child>
@@ -163,6 +169,7 @@
           <packing>
             <property name="left_attach">1</property>
             <property name="top_attach">4</property>
+            <property name="width">2</property>
           </packing>
         </child>
         <child>
@@ -254,6 +261,7 @@
           <packing>
             <property name="left_attach">1</property>
             <property name="top_attach">1</property>
+            <property name="width">2</property>
           </packing>
         </child>
         <child>
@@ -275,6 +283,22 @@
           <packing>
             <property name="left_attach">1</property>
             <property name="top_attach">0</property>
+            <property name="width">2</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkButton" id="show_contact_info_button">
+            <property name="visible">True</property>
+            <property name="sensitive">False</property>
+            <property name="can_focus">True</property>
+            <property name="receives_default">True</property>
+            <property name="tooltip_text" translatable="yes">Query Contact Info</property>
+            <property name="image">image1</property>
+            <signal name="clicked" handler="on_show_contact_info_button_clicked" swapped="no"/>
+          </object>
+          <packing>
+            <property name="left_attach">2</property>
+            <property name="top_attach">2</property>
           </packing>
         </child>
       </object>

gajim/gtk/add_contact.py

@@ -15,6 +15,7 @@
 from gi.repository import Gdk
 from gi.repository import Gtk
 
+from gajim import vcard
 from gajim.common import app
 from gajim.common import ged
 from gajim.common import helpers
@@ -58,8 +59,9 @@ class AddNewContactWindow(Gtk.ApplicationWindow):
         self.xml.connect_signals(self)
 
         for w in ('account_combobox', 'account_label', 'prompt_label',
-                  'uid_label', 'uid_entry', 'protocol_combobox',
-                  'protocol_jid_combobox', 'protocol_label', 'nickname_entry',
+                  'uid_label', 'uid_entry', 'show_contact_info_button',
+                  'protocol_combobox', 'protocol_jid_combobox',
+                  'protocol_label', 'nickname_entry',
                   'message_scrolledwindow', 'save_message_checkbutton',
                   'register_hbox', 'add_button', 'message_textview',
                   'connected_label', 'group_comboboxentry',
@@ -68,6 +70,7 @@ class AddNewContactWindow(Gtk.ApplicationWindow):
             self.__dict__[w] = self.xml.get_object(w)
 
         self.subscription_table = [self.uid_label, self.uid_entry,
+                                   self.show_contact_info_button,
                                    self.nickname_label, self.nickname_entry,
                                    self.group_label, self.group_comboboxentry]
 
@@ -191,6 +194,7 @@ class AddNewContactWindow(Gtk.ApplicationWindow):
                 self.account))
             message_buffer.set_text(msg)
 
+        self.uid_entry.connect('changed', self.on_uid_entry_changed)
         self.show_all()
 
         app.ged.register_event_handler('gateway-prompt-received', ged.GUI1,
@@ -204,6 +208,26 @@ class AddNewContactWindow(Gtk.ApplicationWindow):
         app.ged.remove_event_handler('gateway-prompt-received', ged.GUI1,
                                      self._nec_gateway_prompt_received)
 
+    def on_uid_entry_changed(self, widget):
+        is_empty = bool(not self.uid_entry.get_text() == '')
+        self.show_contact_info_button.set_sensitive(is_empty)
+
+    def on_show_contact_info_button_clicked(self, widget):
+        """
+        Ask for vCard
+        """
+        jid = self.uid_entry.get_text().strip()
+
+        if jid in app.interface.instances[self.account]['infos']:
+            app.interface.instances[self.account]['infos'][jid].window.present()
+        else:
+            contact = app.contacts.create_contact(jid=jid, account=self.account)
+            app.interface.instances[self.account]['infos'][jid] = \
+                     vcard.VcardWindow(contact, self.account)
+            # Remove xmpp page
+            app.interface.instances[self.account]['infos'][jid].xml.\
+                     get_object('information_notebook').remove_page(0)
+
     def on_register_button_clicked(self, widget):
         model = self.protocol_jid_combobox.get_model()
         row = self.protocol_jid_combobox.get_active()