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[GNUnet-SVN] r20155 - in gnunet-gtk: contrib src/fs


From: gnunet
Subject: [GNUnet-SVN] r20155 - in gnunet-gtk: contrib src/fs
Date: Thu, 1 Mar 2012 09:26:33 +0100

Author: grothoff
Date: 2012-03-01 09:26:33 +0100 (Thu, 01 Mar 2012)
New Revision: 20155

Added:
   gnunet-gtk/contrib/gnunet_fs_gtk_namespace_manager.glade
   gnunet-gtk/src/fs/gnunet-fs-gtk_namespace_manager.c
Modified:
   gnunet-gtk/contrib/Makefile.am
   gnunet-gtk/contrib/gnunet_fs_gtk_main_window.glade
   gnunet-gtk/src/fs/Makefile.am
   gnunet-gtk/src/fs/gnunet-fs-gtk_common.c
   gnunet-gtk/src/fs/gnunet-fs-gtk_common.h
   gnunet-gtk/src/fs/gnunet-fs-gtk_event-handler.c
   gnunet-gtk/src/fs/gnunet-fs-gtk_main-window-namespace-dropdown.c
Log:
LRN: updates to pseudonym API from #1952, adding namespace manager

Modified: gnunet-gtk/contrib/Makefile.am
===================================================================
--- gnunet-gtk/contrib/Makefile.am      2012-03-01 08:24:17 UTC (rev 20154)
+++ gnunet-gtk/contrib/Makefile.am      2012-03-01 08:26:33 UTC (rev 20155)
@@ -17,6 +17,7 @@
   gnunet_fs_gtk_create_namespace_dialog.glade \
   gnunet_fs_gtk_download_as_dialog.glade \
   gnunet_fs_gtk_main_window.glade \
+  gnunet_fs_gtk_namespace_manager.glade \
   gnunet_fs_gtk_edit_publication.glade \
   gnunet_fs_gtk_open_directory_dialog.glade \
   gnunet_fs_gtk_open_url_dialog.glade \

Modified: gnunet-gtk/contrib/gnunet_fs_gtk_main_window.glade
===================================================================
--- gnunet-gtk/contrib/gnunet_fs_gtk_main_window.glade  2012-03-01 08:24:17 UTC 
(rev 20154)
+++ gnunet-gtk/contrib/gnunet_fs_gtk_main_window.glade  2012-03-01 08:26:33 UTC 
(rev 20155)
@@ -250,6 +250,15 @@
                       </object>
                     </child>
                     <child>
+                      <object class="GtkMenuItem" 
id="GNUNET_GTK_main_menu_file_manage_pseudonyms">
+                        <property name="visible">True</property>
+                        <property name="tooltip_text" translatable="yes">Opens 
namespace manager dialog to adjust the list of namespaces you want to use, as 
well as get detailed information about all discovered namespaces.</property>
+                        <property name="label" translatable="yes">_Manage 
namespaces</property>
+                        <property name="use_underline">True</property>
+                        <signal name="activate" 
handler="GNUNET_GTK_main_menu_file_manage_pseudonyms_activate_cb"/>
+                      </object>
+                    </child>
+                    <child>
                       <object class="GtkSeparatorMenuItem" 
id="GNUNET_GTK_main_menu_file_sep3">
                         <property name="visible">True</property>
                       </object>

Added: gnunet-gtk/contrib/gnunet_fs_gtk_namespace_manager.glade
===================================================================
--- gnunet-gtk/contrib/gnunet_fs_gtk_namespace_manager.glade                    
        (rev 0)
+++ gnunet-gtk/contrib/gnunet_fs_gtk_namespace_manager.glade    2012-03-01 
08:26:33 UTC (rev 20155)
@@ -0,0 +1,628 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <requires lib="gtk+" version="2.24"/>
+  <!-- interface-naming-policy project-wide -->
+  <object class="GtkListStore" 
id="GNUNET_GTK_namespace_manager_known_liststore">
+    <columns>
+      <!-- column-name IsMine -->
+      <column type="gboolean"/>
+      <!-- column-name Rank -->
+      <column type="gint"/>
+      <!-- column-name NamespaceName -->
+      <column type="gchararray"/>
+      <!-- column-name NamespaceKey -->
+      <column type="gchararray"/>
+      <!-- column-name NamespaceKeyBinary -->
+      <column type="gpointer"/>
+      <!-- column-name OrderListRowReference -->
+      <column type="gpointer"/>
+      <!-- column-name MetaData -->
+      <column type="gpointer"/>
+      <!-- column-name NonUniqueName -->
+      <column type="gchararray"/>
+    </columns>
+  </object>
+  <object class="GtkAdjustment" 
id="GNUNET_GTK_namespace_manager_known_namespaces_hadj">
+    <property name="upper">100</property>
+    <property name="step_increment">1</property>
+    <property name="page_increment">10</property>
+  </object>
+  <object class="GtkAdjustment" 
id="GNUNET_GTK_namespace_manager_known_namespaces_vadj">
+    <property name="upper">100</property>
+    <property name="step_increment">1</property>
+    <property name="page_increment">10</property>
+  </object>
+  <object class="GtkAdjustment" 
id="GNUNET_GTK_namespace_manager_namespace_details_hadj">
+    <property name="upper">100</property>
+    <property name="step_increment">1</property>
+    <property name="page_increment">10</property>
+  </object>
+  <object class="GtkDialog" id="GNUNET_GTK_namespace_manager_dialog">
+    <property name="can_focus">False</property>
+    <property name="border_width">5</property>
+    <property name="destroy_with_parent">True</property>
+    <property name="type_hint">dialog</property>
+    <property name="has_separator">True</property>
+    <signal name="response" 
handler="GNUNET_GTK_namespace_manager_dialog_response_cb" swapped="no"/>
+    <child internal-child="vbox">
+      <object class="GtkVBox" id="GNUNET_GTK_namespace_manager_vbox">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="spacing">2</property>
+        <child internal-child="action_area">
+          <object class="GtkHButtonBox" 
id="GNUNET_GTK_namespace_manager_action_area">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="layout_style">end</property>
+            <child>
+              <object class="GtkButton" 
id="GNUNET_GTK_namespace_manager_apply_button">
+                <property name="label">gtk-apply</property>
+                <property name="use_action_appearance">False</property>
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="receives_default">True</property>
+                <property name="tooltip_text" translatable="yes">Saves all 
changes made in this dialog to disk without closing the dialog.</property>
+                <property name="use_stock">True</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">False</property>
+                <property name="position">0</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkButton" 
id="GNUNET_GTK_namespace_manager_ok_button">
+                <property name="label">gtk-ok</property>
+                <property name="use_action_appearance">False</property>
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="receives_default">True</property>
+                <property name="tooltip_text" translatable="yes">Saves all 
changes made in this dialog to disk and closes the dialog.</property>
+                <property name="use_stock">True</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">False</property>
+                <property name="position">1</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkButton" 
id="GNUNET_GTK_namespace_manager_cancel_button">
+                <property name="label">gtk-cancel</property>
+                <property name="use_action_appearance">False</property>
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="receives_default">True</property>
+                <property name="tooltip_text" translatable="yes">Closes the 
dialog. Changes made in this dialog will not be preserved.</property>
+                <property name="use_stock">True</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">False</property>
+                <property name="position">2</property>
+              </packing>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="fill">True</property>
+            <property name="pack_type">end</property>
+            <property name="position">0</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkVPaned" 
id="GNUNET_GTK_namespace_manager_main_vpaned">
+            <property name="visible">True</property>
+            <property name="can_focus">True</property>
+            <child>
+              <object class="GtkHPaned" 
id="GNUNET_GTK_namespace_manager_top_hpaned">
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <child>
+                  <object class="GtkVBox" 
id="GNUNET_GTK_namespace_manager_known_namespaces_vbox">
+                    <property name="visible">True</property>
+                    <property name="can_focus">False</property>
+                    <child>
+                      <object class="GtkLabel" 
id="GNUNET_GTK_namespace_manager_known_namespaces_label">
+                        <property name="visible">True</property>
+                        <property name="can_focus">False</property>
+                        <property name="label" translatable="yes">Known 
namespaces:
+Select a namespace to see its complete metadata. Click "Delete" to delete 
(forget) namespace.
+Namespace names are editable.</property>
+                      </object>
+                      <packing>
+                        <property name="expand">False</property>
+                        <property name="fill">False</property>
+                        <property name="position">0</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkScrolledWindow" 
id="GNUNET_GTK_namespace_manager_known_namespaces_scrolledwindow">
+                        <property name="visible">True</property>
+                        <property name="can_focus">True</property>
+                        <property 
name="hadjustment">GNUNET_GTK_namespace_manager_known_namespaces_hadj</property>
+                        <property 
name="vadjustment">GNUNET_GTK_namespace_manager_known_namespaces_vadj</property>
+                        <property name="hscrollbar_policy">automatic</property>
+                        <property name="vscrollbar_policy">automatic</property>
+                        <property name="shadow_type">in</property>
+                        <child>
+                          <object class="GtkTreeView" 
id="GNUNET_GTK_namespace_manager_known_treeview">
+                            <property name="visible">True</property>
+                            <property name="can_focus">True</property>
+                            <property 
name="model">GNUNET_GTK_namespace_manager_known_liststore</property>
+                            <property 
name="hadjustment">GNUNET_GTK_namespace_manager_known_namespaces_hadj</property>
+                            <property 
name="vadjustment">GNUNET_GTK_namespace_manager_known_namespaces_vadj</property>
+                            <property name="rules_hint">True</property>
+                            <property name="search_column">2</property>
+                            <property name="show_expanders">False</property>
+                            <child>
+                              <object class="GtkTreeViewColumn" 
id="GNUNET_GTK_namespace_manager_is_mine_column">
+                                <property name="title" translatable="yes">Is 
mine</property>
+                                <property name="clickable">True</property>
+                                <property name="sort_indicator">True</property>
+                                <property name="sort_column_id">0</property>
+                                <child>
+                                  <object class="GtkCellRendererToggle" 
id="GNUNET_GTK_namespace_manager_is_mine_toggle">
+                                    <property 
name="activatable">False</property>
+                                  </object>
+                                  <attributes>
+                                    <attribute name="active">0</attribute>
+                                  </attributes>
+                                </child>
+                              </object>
+                            </child>
+                            <child>
+                              <object class="GtkTreeViewColumn" 
id="GNUNET_GTK_namespace_manager_rank_column">
+                                <property name="title" 
translatable="yes">Rank</property>
+                                <property name="clickable">True</property>
+                                <property name="sort_indicator">True</property>
+                                <property name="sort_column_id">1</property>
+                                <child>
+                                  <object class="GtkCellRendererText" 
id="GNUNET_GTK_namespace_manager_rank_text"/>
+                                  <attributes>
+                                    <attribute name="text">1</attribute>
+                                  </attributes>
+                                </child>
+                              </object>
+                            </child>
+                            <child>
+                              <object class="GtkTreeViewColumn" 
id="GNUNET_GTK_namespace_manager_namespace_name_column">
+                                <property name="title" 
translatable="yes">Name</property>
+                                <property name="clickable">True</property>
+                                <property name="sort_indicator">True</property>
+                                <property name="sort_column_id">2</property>
+                                <child>
+                                  <object class="GtkCellRendererText" 
id="GNUNET_GTK_namespace_manager_name_text">
+                                    <property name="editable">True</property>
+                                    <signal name="editing-started" 
handler="GNUNET_GTK_namespace_manager_name_text_editing_started_cb" 
swapped="no"/>
+                                    <signal name="edited" 
handler="GNUNET_GTK_namespace_manager_name_text_edited_cb" swapped="no"/>
+                                  </object>
+                                  <attributes>
+                                    <attribute name="text">2</attribute>
+                                  </attributes>
+                                </child>
+                              </object>
+                            </child>
+                            <child>
+                              <object class="GtkTreeViewColumn" 
id="GNUNET_GTK_namespace_manager_namespace_id_column">
+                                <property name="title" 
translatable="yes">Identifier</property>
+                                <property name="clickable">True</property>
+                                <property name="sort_indicator">True</property>
+                                <property name="sort_column_id">3</property>
+                                <child>
+                                  <object class="GtkCellRendererText" 
id="GNUNET_GTK_namespace_manager_namespace_id_text"/>
+                                  <attributes>
+                                    <attribute name="text">3</attribute>
+                                  </attributes>
+                                </child>
+                              </object>
+                            </child>
+                          </object>
+                        </child>
+                      </object>
+                      <packing>
+                        <property name="expand">True</property>
+                        <property name="fill">True</property>
+                        <property name="position">1</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkHButtonBox" 
id="GNUNET_GTK_namespace_manager_known_namespaces_buttonbox">
+                        <property name="visible">True</property>
+                        <property name="can_focus">False</property>
+                        <property name="extension_events">cursor</property>
+                        <property name="border_width">5</property>
+                        <property name="spacing">5</property>
+                        <property name="layout_style">end</property>
+                        <child>
+                          <object class="GtkButton" 
id="GNUNET_GTK_namespace_manager_known_namespaces_delete_button">
+                            <property name="label">gtk-delete</property>
+                            <property 
name="use_action_appearance">False</property>
+                            <property name="visible">True</property>
+                            <property name="can_focus">True</property>
+                            <property name="receives_default">True</property>
+                            <property name="tooltip_text" 
translatable="yes">Makes GNUnet "forget" about selected known namespace.
+However, GNUnet will be able to learn about this namespace, if it ever 
discovers it again.</property>
+                            <property name="use_stock">True</property>
+                            <signal name="clicked" 
handler="GNUNET_GTK_namespace_manager_known_namespaces_delete_button_clicked_cb"
 swapped="no"/>
+                          </object>
+                          <packing>
+                            <property name="expand">False</property>
+                            <property name="fill">False</property>
+                            <property name="position">0</property>
+                          </packing>
+                        </child>
+                        <child>
+                          <object class="GtkButton" 
id="GNUNET_GTK_namespace_manager_known_namespaces_swap_rank_button">
+                            <property name="label" translatable="yes">Swap 
_Rank</property>
+                            <property 
name="use_action_appearance">False</property>
+                            <property name="visible">True</property>
+                            <property name="can_focus">True</property>
+                            <property name="receives_default">True</property>
+                            <property name="tooltip_text" 
translatable="yes">Changes the rank value of the selected namespace in "Known 
namespaces" list.
+If it had rank 0, it's given rank -1, otherwise the sign of its rank is 
flipped.
+Only namespaces with positive ranks are displayed in "Namespace order" 
list.</property>
+                            <property name="use_underline">True</property>
+                            <signal name="clicked" 
handler="GNUNET_GTK_namespace_manager_known_namespaces_swap_rank_button_clicked_cb"
 swapped="no"/>
+                          </object>
+                          <packing>
+                            <property name="expand">False</property>
+                            <property name="fill">False</property>
+                            <property name="position">1</property>
+                          </packing>
+                        </child>
+                      </object>
+                      <packing>
+                        <property name="expand">False</property>
+                        <property name="fill">False</property>
+                        <property name="position">2</property>
+                      </packing>
+                    </child>
+                  </object>
+                  <packing>
+                    <property name="resize">True</property>
+                    <property name="shrink">False</property>
+                  </packing>
+                </child>
+                <child>
+                  <object class="GtkVBox" 
id="GNUNET_GTK_namespace_manager_namespace_order_vbox_vbox">
+                    <property name="visible">True</property>
+                    <property name="can_focus">False</property>
+                    <child>
+                      <object class="GtkLabel" 
id="GNUNET_GTK_namespace_manager_namespace_order_label">
+                        <property name="visible">True</property>
+                        <property name="can_focus">False</property>
+                        <property name="label" translatable="yes">Namespace 
order:
+Drag rows to change namespace order, click "Apply" to save it.</property>
+                      </object>
+                      <packing>
+                        <property name="expand">False</property>
+                        <property name="fill">False</property>
+                        <property name="position">0</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkScrolledWindow" 
id="GNUNET_GTK_namespace_manager_namespace_order_scrolledwindow">
+                        <property name="visible">True</property>
+                        <property name="can_focus">True</property>
+                        <property 
name="hadjustment">GNUNET_GTK_namespace_manager_namespace_order_hadj</property>
+                        <property 
name="vadjustment">GNUNET_GTK_namespace_manager_namespace_order_vadj</property>
+                        <property name="hscrollbar_policy">automatic</property>
+                        <property name="vscrollbar_policy">automatic</property>
+                        <property name="shadow_type">in</property>
+                        <child>
+                          <object class="GtkTreeView" 
id="GNUNET_GTK_namespace_manager_namespace_order_treeview">
+                            <property name="visible">True</property>
+                            <property name="can_focus">True</property>
+                            <property 
name="model">GNUNET_GTK_namespace_manager_namespace_order_liststore</property>
+                            <property 
name="hadjustment">GNUNET_GTK_namespace_manager_namespace_order_hadj</property>
+                            <property 
name="vadjustment">GNUNET_GTK_namespace_manager_namespace_order_vadj</property>
+                            <property name="headers_clickable">False</property>
+                            <property name="reorderable">True</property>
+                            <property name="rules_hint">True</property>
+                            <property name="search_column">0</property>
+                            <property name="show_expanders">False</property>
+                            <property name="rubber_banding">True</property>
+                            <child>
+                              <object class="GtkTreeViewColumn" 
id="GNUNET_GTK_namespace_manager_namespace_order_rank_column">
+                                <property name="title" 
translatable="yes">Rank</property>
+                                <property name="clickable">True</property>
+                                <signal name="clicked" 
handler="GNUNET_GTK_namespace_manager_namespace_order_column_clicked_cb" 
swapped="no"/>
+                                <child>
+                                  <object class="GtkCellRendererText" 
id="GNUNET_GTK_namespace_manager_namespace_order_rank_text"/>
+                                  <attributes>
+                                    <attribute name="text">0</attribute>
+                                  </attributes>
+                                </child>
+                              </object>
+                            </child>
+                            <child>
+                              <object class="GtkTreeViewColumn" 
id="GNUNET_GTK_namespace_manager_namespace_order_name_column">
+                                <property name="title" 
translatable="yes">Name</property>
+                                <property name="clickable">True</property>
+                                <signal name="clicked" 
handler="GNUNET_GTK_namespace_manager_namespace_order_column_clicked_cb" 
swapped="no"/>
+                                <child>
+                                  <object class="GtkCellRendererText" 
id="GNUNET_GTK_namespace_manager_namespace_order_name_text"/>
+                                  <attributes>
+                                    <attribute name="text">1</attribute>
+                                  </attributes>
+                                </child>
+                              </object>
+                            </child>
+                            <child>
+                              <object class="GtkTreeViewColumn" 
id="GNUNET_GTK_namespace_manager_namespace_order_identifier_column">
+                                <property name="title" 
translatable="yes">Identifier</property>
+                                <property name="clickable">True</property>
+                                <signal name="clicked" 
handler="GNUNET_GTK_namespace_manager_namespace_order_column_clicked_cb" 
swapped="no"/>
+                                <child>
+                                  <object class="GtkCellRendererText" 
id="GNUNET_GTK_namespace_manager_namespace_order_identifier_text"/>
+                                  <attributes>
+                                    <attribute name="text">2</attribute>
+                                  </attributes>
+                                </child>
+                              </object>
+                            </child>
+                          </object>
+                        </child>
+                      </object>
+                      <packing>
+                        <property name="expand">True</property>
+                        <property name="fill">True</property>
+                        <property name="position">1</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkHButtonBox" 
id="GNUNET_GTK_namespace_manager_namespace_order_buttonbox">
+                        <property name="visible">True</property>
+                        <property name="can_focus">False</property>
+                        <property name="border_width">5</property>
+                        <property name="layout_style">end</property>
+                        <child>
+                          <object class="GtkButton" 
id="GNUNET_GTK_namespace_manager_namespace_order_apply">
+                            <property name="label">gtk-apply</property>
+                            <property 
name="use_action_appearance">False</property>
+                            <property name="visible">True</property>
+                            <property name="can_focus">True</property>
+                            <property name="receives_default">True</property>
+                            <property name="tooltip_text" 
translatable="yes">Convert the order in which namespaces are arranged in 
"Namespace order" list to ranks.
+Top namespace is assigned rank 0, namespace below it - rank 1, and so 
on.</property>
+                            <property name="use_stock">True</property>
+                            <signal name="clicked" 
handler="GNUNET_GTK_namespace_manager_namespace_order_apply_clicked_cb" 
swapped="no"/>
+                          </object>
+                          <packing>
+                            <property name="expand">False</property>
+                            <property name="fill">False</property>
+                            <property name="position">0</property>
+                          </packing>
+                        </child>
+                      </object>
+                      <packing>
+                        <property name="expand">False</property>
+                        <property name="fill">False</property>
+                        <property name="position">2</property>
+                      </packing>
+                    </child>
+                  </object>
+                  <packing>
+                    <property name="resize">True</property>
+                    <property name="shrink">False</property>
+                  </packing>
+                </child>
+              </object>
+              <packing>
+                <property name="resize">True</property>
+                <property name="shrink">False</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkVBox" 
id="GNUNET_GTK_namespace_manager_namespace_details_vbox">
+                <property name="visible">True</property>
+                <property name="can_focus">False</property>
+                <child>
+                  <object class="GtkLabel" 
id="GNUNET_GTK_namespace_manager_namespace_details_label">
+                    <property name="visible">True</property>
+                    <property name="can_focus">False</property>
+                    <property name="label" translatable="yes">Selected 
namespace details:
+Metadata can be &lt;s&gt;added,&lt;/s&gt; deleted and edited. Click "Apply" to 
save metadata changes.</property>
+                    <property name="use_markup">True</property>
+                  </object>
+                  <packing>
+                    <property name="expand">False</property>
+                    <property name="fill">False</property>
+                    <property name="position">0</property>
+                  </packing>
+                </child>
+                <child>
+                  <object class="GtkScrolledWindow" 
id="GNUNET_GTK_namespace_manager_namespace_details_scrolledwindow">
+                    <property name="visible">True</property>
+                    <property name="can_focus">True</property>
+                    <property 
name="hadjustment">GNUNET_GTK_namespace_manager_namespace_details_hadj</property>
+                    <property 
name="vadjustment">GNUNET_GTK_namespace_manager_namespace_details_vadj</property>
+                    <property name="hscrollbar_policy">automatic</property>
+                    <property name="vscrollbar_policy">automatic</property>
+                    <property name="shadow_type">in</property>
+                    <child>
+                      <object class="GtkTreeView" 
id="GNUNET_GTK_namespace_manager_namespace_details_treeview">
+                        <property name="visible">True</property>
+                        <property name="can_focus">True</property>
+                        <property 
name="model">GNUNET_GTK_namespace_manager_namespace_details_liststore</property>
+                        <property 
name="hadjustment">GNUNET_GTK_namespace_manager_namespace_details_hadj</property>
+                        <property 
name="vadjustment">GNUNET_GTK_namespace_manager_namespace_details_vadj</property>
+                        <property name="headers_clickable">False</property>
+                        <property name="rules_hint">True</property>
+                        <property name="search_column">0</property>
+                        <property name="show_expanders">False</property>
+                        <property name="rubber_banding">True</property>
+                        <property name="enable_grid_lines">both</property>
+                        <child>
+                          <object class="GtkTreeViewColumn" 
id="GNUNET_GTK_namespace_manager_details_type_column">
+                            <property name="title" 
translatable="yes">Type</property>
+                            <child>
+                              <object class="GtkCellRendererText" 
id="GNUNET_GTK_namespace_manager_namespace_details_type_text">
+                                <signal name="edited" 
handler="GNUNET_GTK_namespace_manager_namespace_details_type_text_edited_cb" 
swapped="no"/>
+                              </object>
+                              <attributes>
+                                <attribute name="text">2</attribute>
+                              </attributes>
+                            </child>
+                          </object>
+                        </child>
+                        <child>
+                          <object class="GtkTreeViewColumn" 
id="GNUNET_GTK_namespace_manager_details_value_column">
+                            <property name="title" 
translatable="yes">Value</property>
+                            <child>
+                              <object class="GtkCellRendererText" 
id="GNUNET_GTK_namespace_manager_namespace_details_value_text">
+                                <property name="editable">True</property>
+                                <signal name="edited" 
handler="GNUNET_GTK_namespace_manager_namespace_details_value_text_edited_cb" 
swapped="no"/>
+                              </object>
+                              <attributes>
+                                <attribute name="text">5</attribute>
+                              </attributes>
+                            </child>
+                          </object>
+                        </child>
+                      </object>
+                    </child>
+                  </object>
+                  <packing>
+                    <property name="expand">True</property>
+                    <property name="fill">True</property>
+                    <property name="position">1</property>
+                  </packing>
+                </child>
+                <child>
+                  <object class="GtkHButtonBox" 
id="GNUNET_GTK_namespace_manager_namespace_details_buttonbox">
+                    <property name="visible">True</property>
+                    <property name="can_focus">False</property>
+                    <property name="border_width">5</property>
+                    <property name="spacing">5</property>
+                    <property name="layout_style">end</property>
+                    <child>
+                      <object class="GtkButton" 
id="GNUNET_GTK_namespace_manager_namespace_details_add_button">
+                        <property name="label">gtk-add</property>
+                        <property name="use_action_appearance">False</property>
+                        <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">Adds 
a new metadata Type=Value pair to the list.
+This functionality is not available at the moment.</property>
+                        <property name="use_stock">True</property>
+                        <signal name="clicked" 
handler="GNUNET_GTK_namespace_manager_namespace_details_add_button_clicked_cb" 
swapped="no"/>
+                      </object>
+                      <packing>
+                        <property name="expand">False</property>
+                        <property name="fill">False</property>
+                        <property name="position">0</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkButton" 
id="GNUNET_GTK_namespace_manager_namespace_details_delete_button">
+                        <property name="label">gtk-delete</property>
+                        <property name="use_action_appearance">False</property>
+                        <property name="visible">True</property>
+                        <property name="can_focus">True</property>
+                        <property name="receives_default">True</property>
+                        <property name="tooltip_text" 
translatable="yes">Removes selected Type=Value pair from metadata list.
+The change will not last unless you click on "Apply" button before closing the 
window or selecing some other known namespace.</property>
+                        <property name="use_stock">True</property>
+                        <signal name="clicked" 
handler="GNUNET_GTK_namespace_manager_namespace_details_delete_button_clicked_cb"
 swapped="no"/>
+                      </object>
+                      <packing>
+                        <property name="expand">False</property>
+                        <property name="fill">False</property>
+                        <property name="position">1</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkButton" 
id="GNUNET_GTK_namespace_manager_namespace_details_apply_button">
+                        <property name="label">gtk-apply</property>
+                        <property name="use_action_appearance">False</property>
+                        <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">Applies changes made in metadata list to currently selected 
known namespace.</property>
+                        <property name="use_stock">True</property>
+                        <signal name="clicked" 
handler="GNUNET_GTK_namespace_manager_namespace_details_apply_button_clicked_cb"
 swapped="no"/>
+                      </object>
+                      <packing>
+                        <property name="expand">False</property>
+                        <property name="fill">False</property>
+                        <property name="position">2</property>
+                      </packing>
+                    </child>
+                  </object>
+                  <packing>
+                    <property name="expand">False</property>
+                    <property name="fill">False</property>
+                    <property name="position">2</property>
+                  </packing>
+                </child>
+              </object>
+              <packing>
+                <property name="resize">True</property>
+                <property name="shrink">False</property>
+              </packing>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">True</property>
+            <property name="fill">True</property>
+            <property name="position">1</property>
+          </packing>
+        </child>
+      </object>
+    </child>
+    <action-widgets>
+      <action-widget 
response="-10">GNUNET_GTK_namespace_manager_apply_button</action-widget>
+      <action-widget 
response="-5">GNUNET_GTK_namespace_manager_ok_button</action-widget>
+      <action-widget 
response="-6">GNUNET_GTK_namespace_manager_cancel_button</action-widget>
+    </action-widgets>
+  </object>
+  <object class="GtkListStore" 
id="GNUNET_GTK_namespace_manager_namespace_details_liststore">
+    <columns>
+      <!-- column-name PluginName -->
+      <column type="gchararray"/>
+      <!-- column-name TypeBin -->
+      <column type="gint"/>
+      <!-- column-name Type -->
+      <column type="gchararray"/>
+      <!-- column-name Format -->
+      <column type="gint"/>
+      <!-- column-name DataMime -->
+      <column type="gchararray"/>
+      <!-- column-name Value -->
+      <column type="gchararray"/>
+    </columns>
+  </object>
+  <object class="GtkAdjustment" 
id="GNUNET_GTK_namespace_manager_namespace_details_vadj">
+    <property name="upper">100</property>
+    <property name="step_increment">1</property>
+    <property name="page_increment">10</property>
+  </object>
+  <object class="GtkAdjustment" 
id="GNUNET_GTK_namespace_manager_namespace_order_hadj">
+    <property name="upper">100</property>
+    <property name="step_increment">1</property>
+    <property name="page_increment">10</property>
+  </object>
+  <object class="GtkListStore" 
id="GNUNET_GTK_namespace_manager_namespace_order_liststore">
+    <columns>
+      <!-- column-name Rank -->
+      <column type="gint"/>
+      <!-- column-name Name -->
+      <column type="gchararray"/>
+      <!-- column-name Identifier -->
+      <column type="gchararray"/>
+      <!-- column-name IdentifierBin -->
+      <column type="gpointer"/>
+      <!-- column-name KnownListRowReference -->
+      <column type="gpointer"/>
+    </columns>
+  </object>
+  <object class="GtkAdjustment" 
id="GNUNET_GTK_namespace_manager_namespace_order_vadj">
+    <property name="upper">100</property>
+    <property name="step_increment">1</property>
+    <property name="page_increment">10</property>
+  </object>
+</interface>

Modified: gnunet-gtk/src/fs/Makefile.am
===================================================================
--- gnunet-gtk/src/fs/Makefile.am       2012-03-01 08:24:17 UTC (rev 20154)
+++ gnunet-gtk/src/fs/Makefile.am       2012-03-01 08:26:33 UTC (rev 20155)
@@ -25,7 +25,8 @@
   gnunet-fs-gtk_open-directory.c \
   gnunet-fs-gtk_open-uri.c \
   gnunet-fs-gtk_publish-dialog.c \
-  gnunet-fs-gtk_publish-edit-dialog.c gnunet-fs-gtk_publish-edit-dialog.h 
+  gnunet-fs-gtk_publish-edit-dialog.c gnunet-fs-gtk_publish-edit-dialog.h \
+  gnunet-fs-gtk_namespace_manager.c gnunet-fs-gtk_namespace_manager.h
 gnunet_fs_gtk_LDADD = \
   $(top_builddir)/src/lib/libgnunetgtk.la \
   @GTK_LIBS@ \

Modified: gnunet-gtk/src/fs/gnunet-fs-gtk_common.c
===================================================================
--- gnunet-gtk/src/fs/gnunet-fs-gtk_common.c    2012-03-01 08:24:17 UTC (rev 
20154)
+++ gnunet-gtk/src/fs/gnunet-fs-gtk_common.c    2012-03-01 08:26:33 UTC (rev 
20155)
@@ -416,5 +416,117 @@
   GNUNET_break (0);
 }
 
+/* Largest rating value among all namespaces. INT_MIN means "undefined" */
+static int largest_namespace_rating = INT_MIN;
 
+
+/**
+ * Helper function for finding the largest namespace rating.
+ *
+ * @param cls closure
+ * @param pseudonym pseudonym hash
+ * @param md metadata container
+ * @param rating rating
+ * @return GNUNET_OK to keep iterating
+ */
+static int
+find_largest_namespace_rating_iterator (void *cls,
+    const GNUNET_HashCode *pseudonym, const char *name,
+    const char *unique_name,
+    const struct GNUNET_CONTAINER_MetaData *md, int rating)
+{
+  int *largest = cls;
+  if (*largest < rating)
+    *largest = rating;
+  return GNUNET_OK;
+}
+
+/**
+ * Finds largest namespace rating.
+ * Used to calculate a rating for newly discovered namespaces.
+ * Returns from cache, if possible.
+ *
+ * @return largest namespace rating. Might be negative and even. INT_MIN means
+ *         that no namespaces are known.
+ */
+int
+GNUNET_GTK_find_largest_namespace_rating ()
+{
+  if (largest_namespace_rating != INT_MIN)
+    return largest_namespace_rating;
+  (void) GNUNET_PSEUDONYM_list_all (GNUNET_FS_GTK_get_configuration (),
+      find_largest_namespace_rating_iterator, &largest_namespace_rating);
+  return largest_namespace_rating;
+}
+
+/**
+ * Sets largest namespace rating.
+ * Used to change cached largest namespace rating, when namespace list
+ * was changed in a way that is easy to track.
+ * If namespace list was changed in a way that makes it difficult to
+ * decide upon the new value, set new value to INT_MIN.
+ *
+ * @param new_value new value for the rating.
+ */
+void
+GNUNET_GTK_set_largest_namespace_rating (int new_value)
+{
+  largest_namespace_rating = new_value;
+}
+
+/**
+ * Converts a GtkTreeRowReference to a GtkTreeIter.
+ *
+ * @param rr row reference
+ * @param iter pointer to an iter structure to fill
+ * @return GNUNET_OK if iter was filled, GNUNET_SYSERR otherwise
+ */
+int
+GNUNET_GTK_get_iter_from_reference (GtkTreeRowReference *rr, GtkTreeIter *iter)
+{
+  int result = GNUNET_SYSERR;
+  if (rr != NULL)
+  {
+    if (gtk_tree_row_reference_valid (rr))
+    {
+      GtkTreePath *path;
+      GtkTreeModel *model;
+      path = gtk_tree_row_reference_get_path (rr);
+      model = gtk_tree_row_reference_get_model (rr);
+      if (path != NULL && model != NULL)
+      {
+        if (gtk_tree_model_get_iter (model,
+            iter, path))
+          result = GNUNET_OK;
+        gtk_tree_path_free (path);
+      }
+    }
+  }
+  return result;
+}
+
+/**
+ * Creates a GtkTreeRowReference from a GtkTreeIter.
+ *
+ * @param model a model to reference
+ * @param iter an iter that points to a row in the model
+ * @return newly created reference or NULL in case of error
+ */
+GtkTreeRowReference *
+GNUNET_GTK_get_reference_from_iter (GtkTreeModel *model, GtkTreeIter *iter)
+{
+  GtkTreeRowReference *result = NULL;
+  if (iter != NULL && model != NULL)
+  {
+    GtkTreePath *path = gtk_tree_model_get_path (model, iter);
+    if (path != NULL)
+    {
+      result = gtk_tree_row_reference_new (model, path);
+      gtk_tree_path_free (path);
+    }
+  }
+  return result;
+}
+
+
 /* end of gnunet-fs-gtk-common.c */

Modified: gnunet-gtk/src/fs/gnunet-fs-gtk_common.h
===================================================================
--- gnunet-gtk/src/fs/gnunet-fs-gtk_common.h    2012-03-01 08:24:17 UTC (rev 
20154)
+++ gnunet-gtk/src/fs/gnunet-fs-gtk_common.h    2012-03-01 08:26:33 UTC (rev 
20155)
@@ -147,5 +147,48 @@
 void
 GNUNET_FS_GTK_handle_uri (const struct GNUNET_FS_Uri *uri);
 
+/**
+ * Finds largest namespace rating.
+ * Used to calculate a rating for newly discovered namespaces.
+ * Returns from cache, if possible.
+ *
+ * @return largest namespace rating. Might be negative and even. INT_MIN means
+ *         that no namespaces are known.
+ */
+int
+GNUNET_GTK_find_largest_namespace_rating ();
+
+/**
+ * Sets largest namespace rating.
+ * Used to change cached largest namespace rating, when namespace list
+ * was changed in a way that is easy to track.
+ * If namespace list was changed in a way that makes it difficult to
+ * decide upon the new value, set new value to INT_MIN.
+ *
+ * @param new_value new value for the rating.
+ */
+void
+GNUNET_GTK_set_largest_namespace_rating (int new_value);
+
+/**
+ * Converts a GtkTreeRowReference to a GtkTreeIter.
+ *
+ * @param rr row reference
+ * @param iter pointer to an iter structure to fill
+ * @return GNUNET_OK if iter was filled, GNUNET_SYSERR otherwise
+ */
+int
+GNUNET_GTK_get_iter_from_reference (GtkTreeRowReference *rr, GtkTreeIter 
*iter);
+
+/**
+ * Creates a GtkTreeRowReference from a GtkTreeIter.
+ *
+ * @param model a model to reference
+ * @param iter an iter that points to a row in the model
+ * @return newly created reference or NULL in case of error
+ */
+GtkTreeRowReference *
+GNUNET_GTK_get_reference_from_iter (GtkTreeModel *model, GtkTreeIter *iter);
+
 #endif
 /* end of gnunet-fs-gtk-common.h */

Modified: gnunet-gtk/src/fs/gnunet-fs-gtk_event-handler.c
===================================================================
--- gnunet-gtk/src/fs/gnunet-fs-gtk_event-handler.c     2012-03-01 08:24:17 UTC 
(rev 20154)
+++ gnunet-gtk/src/fs/gnunet-fs-gtk_event-handler.c     2012-03-01 08:26:33 UTC 
(rev 20155)
@@ -27,6 +27,7 @@
 #include "gnunet-fs-gtk_common.h"
 #include "gnunet-fs-gtk_download-save-as.h"
 #include "gnunet-fs-gtk_event-handler.h"
+#include "gnunet-fs-gtk_namespace_manager.h"
 
 
 /**
@@ -3030,5 +3031,12 @@
   return NULL;
 }
 
+void
+GNUNET_GTK_main_menu_file_manage_pseudonyms_activate_cb (GtkMenuItem *menuitem,
+    gpointer user_data)
+{
+  GNUNET_GTK_namespace_manager_open ();
+}
 
+
 /* end of gnunet-fs-gtk-event_handler.c */

Modified: gnunet-gtk/src/fs/gnunet-fs-gtk_main-window-namespace-dropdown.c
===================================================================
--- gnunet-gtk/src/fs/gnunet-fs-gtk_main-window-namespace-dropdown.c    
2012-03-01 08:24:17 UTC (rev 20154)
+++ gnunet-gtk/src/fs/gnunet-fs-gtk_main-window-namespace-dropdown.c    
2012-03-01 08:26:33 UTC (rev 20155)
@@ -322,11 +322,12 @@
  */
 static int
 add_namespace_to_ts (void *cls, const GNUNET_HashCode * pseudonym,
+                     const char *name, const char *unique_name,
                      const struct GNUNET_CONTAINER_MetaData *md, int rating)
 {
   GtkTreeStore *ts = cls;
   char *root;
-  char *ns_name;
+  char *ns_name, *unique_ns_name;
   GNUNET_HashCode *nsid;
   char *description;
   int desc_is_a_dup;
@@ -335,9 +336,14 @@
   struct GNUNET_FS_Uri *uri;
   GtkTreeIter iter;
 
-  ns_name =
-      GNUNET_PSEUDONYM_id_to_name (GNUNET_FS_GTK_get_configuration (),
-                                   pseudonym);
+  if (rating < 0)
+    return GNUNET_OK;
+
+  GNUNET_PSEUDONYM_get_info (GNUNET_FS_GTK_get_configuration (),
+                             pseudonym, NULL, NULL, &ns_name, NULL);
+  unique_ns_name = GNUNET_PSEUDONYM_name_uniquify (
+      GNUNET_FS_GTK_get_configuration (), pseudonym, ns_name, NULL);
+  GNUNET_free (ns_name);
   nsid = GNUNET_malloc (sizeof (GNUNET_HashCode));
   *nsid = *pseudonym;
   root = NULL;
@@ -352,13 +358,13 @@
     GNUNET_FS_uri_destroy (uri);
   }
   description = GNUNET_FS_GTK_get_description_from_metadata (md, 
&desc_is_a_dup);
-  gtk_tree_store_insert_with_values (ts, &iter, NULL, G_MAXINT, 
-                                    0, ns_name, 
-                                    1, nsid, 
+  gtk_tree_store_insert_with_values (ts, &iter, NULL, G_MAXINT,
+                                    0, unique_ns_name,
+                                    1, nsid,
                                     2, root,
-                                    3, description, 
+                                    3, description,
                                     -1);
-  GNUNET_free (ns_name);
+  GNUNET_free (unique_ns_name);
   GNUNET_free_non_null (root);
   GNUNET_free (description);
   return GNUNET_OK;

Added: gnunet-gtk/src/fs/gnunet-fs-gtk_namespace_manager.c
===================================================================
--- gnunet-gtk/src/fs/gnunet-fs-gtk_namespace_manager.c                         
(rev 0)
+++ gnunet-gtk/src/fs/gnunet-fs-gtk_namespace_manager.c 2012-03-01 08:26:33 UTC 
(rev 20155)
@@ -0,0 +1,970 @@
+/*
+     This file is part of GNUnet
+     (C) 2005, 2006, 2010, 2012 Christian Grothoff (and other contributing 
authors)
+
+     GNUnet 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, or (at your
+     option) any later version.
+
+     GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
+     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+     Boston, MA 02111-1307, USA.
+*/
+
+/**
+ * @file src/fs/gnunet-fs-gtk_namespace_manager.c
+ * @author LRN
+ */
+#include "gnunet-fs-gtk_common.h"
+#include "gnunet-fs-gtk.h"
+#include <gnunet/gnunet_util_lib.h>
+#include <gnunet/gnunet_fs_service.h>
+
+struct GNUNET_GTK_NamespaceManagerContext
+{
+  GtkBuilder *builder;
+  GtkWidget *known_ns;
+  GtkWidget *ns_order;
+  GtkWidget *ns_details;
+  GtkTreeSelection *known_ns_sel;
+  GtkTreeSelection *ns_order_sel;
+  GtkTreeSelection *ns_details_sel;
+  GtkListStore *ns_order_store;
+  GtkListStore *known_ns_store;
+  GtkListStore *ns_details_store;
+  GtkWindow *namespace_manager;
+  GtkTreeViewColumn *order_rank;
+  GtkTreeViewColumn *order_name;
+  GtkTreeViewColumn *order_id;
+  GtkWidget *details_apply_button;
+  GtkWidget *details_delete_button;
+  int sort_direction;
+  struct GNUNET_CONTAINER_MetaData *uneditable_md;
+};
+
+/**
+ * THIS IS EVIL! Used to avoid opening more than one ns manager
+ * at once. Could be fixed by saving a pointer to the ns manager window
+ * somewhere in the main gnunet-fs-gtk window, but main window does
+ * not have a context structure for such things at the moment, hence
+ * this VERY EVIL GLOBAL VARIABLE!
+ */
+static struct GNUNET_GTK_NamespaceManagerContext *ns_manager = NULL;
+
+#define GNUNET_GTK_KNOWN_NAMESPACES_IS_MINE_COLUMN 0
+#define GNUNET_GTK_KNOWN_NAMESPACES_RANK_COLUMN 1
+#define GNUNET_GTK_KNOWN_NAMESPACES_NAME_COLUMN 2
+#define GNUNET_GTK_KNOWN_NAMESPACES_IDENTIFIER_COLUMN 3
+#define GNUNET_GTK_KNOWN_NAMESPACES_IDENTIFIER_BIN_COLUMN 4
+#define GNUNET_GTK_KNOWN_NAMESPACES_ORDER_ROW_REFERENCE_COLUMN 5
+#define GNUNET_GTK_KNOWN_NAMESPACES_METADATA_COLUMN 6
+#define GNUNET_GTK_KNOWN_NAMESPACES_NON_UNIQUE_NAME_COLUMN 7
+
+#define GNUNET_GTK_NAMESPACE_ORDER_RANK_COLUMN 0
+#define GNUNET_GTK_NAMESPACE_ORDER_NAME_COLUMN 1
+#define GNUNET_GTK_NAMESPACE_ORDER_IDENTIFIER_COLUMN 2
+#define GNUNET_GTK_NAMESPACE_ORDER_IDENTIFIER_BIN_COLUMN 3
+#define GNUNET_GTK_NAMESPACE_ORDER_KNOWN_ROW_REFERENCE_COLUMN 4
+
+#define GNUNET_GTK_NAMESPACE_DETAILS_PLUGIN_NAME_COLUMN 0
+#define GNUNET_GTK_NAMESPACE_DETAILS_TYPE_BIN_COLUMN 1
+#define GNUNET_GTK_NAMESPACE_DETAILS_TYPE_COLUMN 2
+#define GNUNET_GTK_NAMESPACE_DETAILS_FORMAT_COLUMN 3
+#define GNUNET_GTK_NAMESPACE_DETAILS_DATA_MIME_COLUMN 4
+#define GNUNET_GTK_NAMESPACE_DETAILS_VALUE_COLUMN 5
+
+static void
+sort_order_list (struct GNUNET_GTK_NamespaceManagerContext *ctx,
+    int sort_column)
+{
+  int sorted = GNUNET_NO;
+  GtkTreeIter iter;
+  gint i;
+  gint row_count;
+  gint *row_indices, *row_ints;
+  gchar **row_strings;
+
+  ctx->sort_direction = ctx->sort_direction <= 0 ? 1 : 0;
+
+  row_count = gtk_tree_model_iter_n_children (GTK_TREE_MODEL (
+      ctx->ns_order_store), NULL);
+  if (TRUE != gtk_tree_model_get_iter_first (GTK_TREE_MODEL (
+      ctx->ns_order_store), &iter))
+    return;
+
+  row_indices = g_new0 (gint, row_count);
+  row_ints = g_new0 (gint, row_count);
+  row_strings = g_new0 (gchar *, row_count);
+
+  for (i = 0; i < row_count; i++)
+  {
+    int an_int;
+    char *a_string;
+    row_indices[i] = i;
+    switch (sort_column)
+    {
+    case GNUNET_GTK_NAMESPACE_ORDER_RANK_COLUMN:
+      gtk_tree_model_get (GTK_TREE_MODEL (ctx->ns_order_store), &iter,
+          sort_column, &an_int, -1);
+      row_ints[i] = an_int;
+      row_strings[i] = NULL;
+      break;
+    case GNUNET_GTK_NAMESPACE_ORDER_NAME_COLUMN:
+    case GNUNET_GTK_NAMESPACE_ORDER_IDENTIFIER_COLUMN:
+      gtk_tree_model_get (GTK_TREE_MODEL (ctx->ns_order_store), &iter,
+          sort_column, &a_string, -1);
+      row_strings[i] = a_string;
+      break;
+    default:
+      row_strings[i] = NULL;
+      break;
+    }
+    if (TRUE != gtk_tree_model_iter_next (GTK_TREE_MODEL (
+      ctx->ns_order_store), &iter))
+      break;
+  }
+
+  while (sorted != GNUNET_YES)
+  {
+    sorted = GNUNET_YES;
+    for (i = 0; i < row_count - 1; i++)
+    {
+      int cmp_result;
+
+      switch (sort_column)
+      {
+      case GNUNET_GTK_NAMESPACE_ORDER_RANK_COLUMN:
+        cmp_result = row_ints[i] <= row_ints[i + 1] ? 0 : 1;
+        break;
+      case GNUNET_GTK_NAMESPACE_ORDER_NAME_COLUMN:
+      case GNUNET_GTK_NAMESPACE_ORDER_IDENTIFIER_COLUMN:
+        /* FIXME: name can be UTF-8-encoded, use UTF-8-aware comparison func */
+        cmp_result = strcmp (row_strings[i], row_strings[i + 1]);
+        break;
+      default:
+        break;
+      }
+
+      if (((ctx->sort_direction <= 0) && (cmp_result <= 0)) ||
+          ((ctx->sort_direction > 0) && (cmp_result > 0)))
+      {
+        int tmp_int, tmp_index;
+        char *tmp_string;
+        tmp_index = row_indices[i];
+        tmp_int = row_ints[i];
+        tmp_string = row_strings[i];
+        row_indices[i] = row_indices[i + 1];
+        row_ints[i] = row_ints[i + 1];
+        row_strings[i] = row_strings[i + 1];
+        row_ints[i + 1] = tmp_int;
+        row_strings[i + 1] = tmp_string;
+        row_indices[i + 1] = tmp_index;
+        sorted = GNUNET_NO;
+      }
+    }
+  }
+
+  gtk_list_store_reorder (ctx->ns_order_store, row_indices);
+
+  g_free (row_indices);
+  for (i = 0; i < row_count; i++)
+    g_free (row_strings[i]);
+  g_free (row_strings);
+  g_free (row_ints);
+}
+
+void
+GNUNET_GTK_namespace_manager_namespace_order_column_clicked_cb (
+    GtkTreeViewColumn *treeviewcolumn, gpointer user_data)
+{
+  struct GNUNET_GTK_NamespaceManagerContext *ctx = user_data;
+  if (treeviewcolumn == ctx->order_rank)
+  {
+    sort_order_list (ctx, GNUNET_GTK_NAMESPACE_ORDER_RANK_COLUMN);
+  }
+  else if (treeviewcolumn == ctx->order_name)
+  {
+    sort_order_list (ctx, GNUNET_GTK_NAMESPACE_ORDER_NAME_COLUMN);
+  }
+  else if (treeviewcolumn == ctx->order_id)
+  {
+    sort_order_list (ctx, GNUNET_GTK_NAMESPACE_ORDER_IDENTIFIER_COLUMN);
+  }
+}
+
+void
+GNUNET_GTK_namespace_manager_known_namespaces_delete_button_clicked_cb (
+    GtkButton *button, gpointer user_data)
+{
+  struct GNUNET_GTK_NamespaceManagerContext *ctx = user_data;
+  GtkTreeIter iter;
+  GNUNET_HashCode *nsid;
+  GtkTreeRowReference *order_row, *known_row;
+  struct GNUNET_CONTAINER_MetaData *md;
+
+  if (FALSE == gtk_tree_selection_get_selected (ctx->known_ns_sel, NULL, 
&iter))
+    return;
+
+  gtk_tree_model_get (GTK_TREE_MODEL (ctx->known_ns_store), &iter,
+      GNUNET_GTK_KNOWN_NAMESPACES_IDENTIFIER_BIN_COLUMN, &nsid,
+      GNUNET_GTK_KNOWN_NAMESPACES_ORDER_ROW_REFERENCE_COLUMN, &order_row,
+      GNUNET_GTK_KNOWN_NAMESPACES_METADATA_COLUMN, &md,
+      -1);
+  GNUNET_CONTAINER_meta_data_destroy (md);
+  gtk_list_store_remove (ctx->known_ns_store, &iter);
+  if (order_row != NULL)
+  {
+    if (GNUNET_OK == GNUNET_GTK_get_iter_from_reference (order_row, &iter))
+    {
+      gtk_tree_model_get (GTK_TREE_MODEL (ctx->ns_order_store), &iter,
+        GNUNET_GTK_NAMESPACE_ORDER_KNOWN_ROW_REFERENCE_COLUMN, &known_row, -1);
+      gtk_list_store_remove (ctx->ns_order_store, &iter);
+      if (known_row != NULL)
+        gtk_tree_row_reference_free (known_row);
+    }
+    gtk_tree_row_reference_free (order_row);
+  }
+  GNUNET_free (nsid);
+
+  gtk_list_store_clear (ctx->ns_details_store);
+  GNUNET_CONTAINER_meta_data_destroy (ctx->uneditable_md);
+  ctx->uneditable_md = NULL;
+}
+
+void
+GNUNET_GTK_namespace_manager_known_namespaces_swap_rank_button_clicked_cb (
+    GtkButton *button, gpointer user_data)
+{
+  struct GNUNET_GTK_NamespaceManagerContext *ctx = user_data;
+  GtkTreeIter known_iter, order_iter;
+  GNUNET_HashCode *nsid;
+  int32_t old_rank, new_rank;
+  GtkTreeRowReference *order_row, *known_row;
+
+  if (FALSE == gtk_tree_selection_get_selected (ctx->known_ns_sel, NULL, 
&known_iter))
+    return;
+
+  gtk_tree_model_get (GTK_TREE_MODEL (ctx->known_ns_store), &known_iter,
+      GNUNET_GTK_KNOWN_NAMESPACES_IDENTIFIER_BIN_COLUMN, &nsid,
+      GNUNET_GTK_KNOWN_NAMESPACES_RANK_COLUMN, &old_rank,
+      GNUNET_GTK_KNOWN_NAMESPACES_ORDER_ROW_REFERENCE_COLUMN, &order_row,
+      -1);
+
+  if (old_rank == 0)
+    new_rank = -1;
+  else
+    new_rank = -old_rank;
+
+  gtk_list_store_set (ctx->known_ns_store, &known_iter,
+      GNUNET_GTK_KNOWN_NAMESPACES_RANK_COLUMN, new_rank,
+      GNUNET_GTK_KNOWN_NAMESPACES_ORDER_ROW_REFERENCE_COLUMN, NULL,
+      -1);
+
+  if (order_row != NULL)
+  {
+    if (new_rank < 0)
+    {
+      if (GNUNET_OK == GNUNET_GTK_get_iter_from_reference (order_row, 
&order_iter))
+      {
+        gtk_tree_model_get (GTK_TREE_MODEL (ctx->ns_order_store), &order_iter,
+            GNUNET_GTK_NAMESPACE_ORDER_KNOWN_ROW_REFERENCE_COLUMN, &known_row, 
-1);
+        gtk_list_store_remove (ctx->ns_order_store, &order_iter);
+        if (known_row != NULL)
+          gtk_tree_row_reference_free (known_row);
+      }
+    }
+    gtk_tree_row_reference_free (order_row);
+  }
+  if (new_rank >= 0)
+  {
+    char *name, *identifier;
+    if (order_row != NULL)
+    {
+      /* This should not happen */
+      GNUNET_break (0);
+    }
+    gtk_tree_model_get (GTK_TREE_MODEL (ctx->known_ns_store), &known_iter,
+        GNUNET_GTK_KNOWN_NAMESPACES_NAME_COLUMN, &name,
+        GNUNET_GTK_KNOWN_NAMESPACES_IDENTIFIER_COLUMN, &identifier,
+        -1);
+    known_row = GNUNET_GTK_get_reference_from_iter (GTK_TREE_MODEL (
+        ctx->known_ns_store), &known_iter);
+    gtk_list_store_insert_with_values (ctx->ns_order_store, &order_iter, 
G_MAXINT,
+        GNUNET_GTK_NAMESPACE_ORDER_RANK_COLUMN, new_rank,
+        GNUNET_GTK_NAMESPACE_ORDER_NAME_COLUMN, name,
+        GNUNET_GTK_NAMESPACE_ORDER_IDENTIFIER_COLUMN, identifier,
+        GNUNET_GTK_NAMESPACE_ORDER_IDENTIFIER_BIN_COLUMN, nsid,
+        GNUNET_GTK_NAMESPACE_ORDER_KNOWN_ROW_REFERENCE_COLUMN, known_row,
+        -1);
+    g_free (name);
+    g_free (identifier);
+    order_row = GNUNET_GTK_get_reference_from_iter (GTK_TREE_MODEL 
(ctx->ns_order_store),
+        &order_iter);
+    gtk_list_store_set (ctx->known_ns_store, &known_iter,
+      GNUNET_GTK_KNOWN_NAMESPACES_ORDER_ROW_REFERENCE_COLUMN, order_row, -1);
+  }
+}
+
+void
+GNUNET_GTK_namespace_manager_namespace_order_apply_clicked_cb (
+    GtkButton *button, gpointer user_data)
+{
+  struct GNUNET_GTK_NamespaceManagerContext *ctx = user_data;
+  GtkTreeIter iter;
+  gint i;
+  gint row_count;
+  GtkTreeRowReference *known_row;
+
+  row_count = gtk_tree_model_iter_n_children (GTK_TREE_MODEL (
+      ctx->ns_order_store), NULL);
+  if (TRUE != gtk_tree_model_get_iter_first (GTK_TREE_MODEL (
+      ctx->ns_order_store), &iter))
+    return;
+
+  for (i = 0; i < row_count; i++)
+  {
+    gtk_list_store_set (ctx->ns_order_store, &iter,
+        GNUNET_GTK_NAMESPACE_ORDER_RANK_COLUMN, i, -1);
+    gtk_tree_model_get (GTK_TREE_MODEL (ctx->ns_order_store), &iter,
+        GNUNET_GTK_NAMESPACE_ORDER_KNOWN_ROW_REFERENCE_COLUMN, &known_row, -1);
+    if (known_row == NULL)
+    {
+      /* This is not supposed to happen. What to do? */
+      GNUNET_break (0);
+    }
+    else
+    {
+      GtkTreeIter known_iter;
+      if (GNUNET_OK == GNUNET_GTK_get_iter_from_reference (known_row, 
&known_iter))
+      {
+        gtk_list_store_set (ctx->known_ns_store, &known_iter,
+            GNUNET_GTK_KNOWN_NAMESPACES_RANK_COLUMN, i,
+            -1);
+      }
+    }
+    if (TRUE != gtk_tree_model_iter_next (GTK_TREE_MODEL (
+      ctx->ns_order_store), &iter))
+      break;
+  }
+}
+
+void
+GNUNET_GTK_namespace_manager_namespace_details_add_button_clicked_cb (
+    GtkButton *button, gpointer user_data)
+{
+  /* FIXME: add a row to the details list. Disabled at the moment, since
+   * metadata type selection is not implemented.
+   */
+}
+
+void
+GNUNET_GTK_namespace_manager_namespace_details_delete_button_clicked_cb (
+    GtkButton *button, gpointer user_data)
+{
+  struct GNUNET_GTK_NamespaceManagerContext *ctx = user_data;
+  GtkTreeIter iter;
+
+  if (FALSE == gtk_tree_selection_get_selected (ctx->ns_details_sel, NULL, 
&iter))
+    return;
+
+  gtk_list_store_remove (ctx->ns_details_store, &iter);
+  gtk_widget_set_sensitive (ctx->details_apply_button, TRUE);
+}
+
+void
+GNUNET_GTK_namespace_manager_namespace_details_apply_button_clicked_cb (
+    GtkButton *button, gpointer user_data)
+{
+  struct GNUNET_GTK_NamespaceManagerContext *ctx = user_data;
+  GtkTreeIter iter, known_iter;
+  gint i;
+  gint row_count;
+  struct GNUNET_CONTAINER_MetaData *md, *old_md;
+  char *plugin_name;
+  int type;
+  char *type_name;
+  int format;
+  char *data_mime_type;
+  char *data;
+
+  row_count = gtk_tree_model_iter_n_children (GTK_TREE_MODEL (
+      ctx->ns_details_store), NULL);
+  if ((row_count > 0) && (TRUE != gtk_tree_model_get_iter_first (
+      GTK_TREE_MODEL (ctx->ns_details_store), &iter)))
+  {
+    /* This should not happen */
+    return;
+  }
+
+  if (FALSE == gtk_tree_selection_get_selected (ctx->known_ns_sel, NULL,
+      &known_iter))
+  {
+    /* This should not happen */
+    return;
+  }
+
+  md = GNUNET_CONTAINER_meta_data_create ();
+
+  for (i = 0; i < row_count; i++)
+  {
+    gtk_tree_model_get (GTK_TREE_MODEL (ctx->ns_details_store), &iter,
+        GNUNET_GTK_NAMESPACE_DETAILS_PLUGIN_NAME_COLUMN, &plugin_name,
+        GNUNET_GTK_NAMESPACE_DETAILS_TYPE_BIN_COLUMN, &type,
+        GNUNET_GTK_NAMESPACE_DETAILS_TYPE_COLUMN, &type_name,
+        GNUNET_GTK_NAMESPACE_DETAILS_FORMAT_COLUMN, &format,
+        GNUNET_GTK_NAMESPACE_DETAILS_DATA_MIME_COLUMN, &data_mime_type,
+        GNUNET_GTK_NAMESPACE_DETAILS_VALUE_COLUMN, &data,
+        -1);
+    GNUNET_CONTAINER_meta_data_insert (md, plugin_name,
+        type, format, data_mime_type, data, strlen (data) + 1);
+    g_free (plugin_name);
+    g_free (type_name);
+    g_free (data_mime_type);
+    g_free (data);
+    if (TRUE != gtk_tree_model_iter_next (GTK_TREE_MODEL (
+      ctx->ns_details_store), &iter))
+      break;
+  }
+  GNUNET_CONTAINER_meta_data_merge (md,
+      (const struct GNUNET_CONTAINER_MetaData *) ctx->uneditable_md);
+
+  gtk_tree_model_get (GTK_TREE_MODEL (ctx->known_ns_store), &known_iter,
+      GNUNET_GTK_KNOWN_NAMESPACES_METADATA_COLUMN, &old_md,
+      -1);
+  GNUNET_CONTAINER_meta_data_destroy (old_md);
+  gtk_list_store_set (ctx->known_ns_store, &known_iter,
+      GNUNET_GTK_KNOWN_NAMESPACES_METADATA_COLUMN, md,
+      -1);
+  gtk_widget_set_sensitive (ctx->details_apply_button, FALSE);
+}
+
+void
+GNUNET_GTK_namespace_manager_name_text_editing_started_cb (
+    GtkCellRenderer *renderer, GtkCellEditable *editable, gchar *path,
+    gpointer user_data)
+{
+  struct GNUNET_GTK_NamespaceManagerContext *ctx = user_data;
+
+  if (GTK_IS_ENTRY (editable)) 
+  {
+    GtkTreePath *tree_path;
+    GtkTreeIter iter;
+    char *non_unique_name = NULL;
+    GtkEntry *entry = GTK_ENTRY (editable);
+
+    tree_path = gtk_tree_path_new_from_string (path);
+    if (tree_path != NULL)
+    {
+      if (gtk_tree_model_get_iter (GTK_TREE_MODEL (ctx->known_ns_store),
+          &iter, tree_path))
+      {
+        gtk_tree_model_get (GTK_TREE_MODEL (ctx->known_ns_store), &iter,
+            GNUNET_GTK_KNOWN_NAMESPACES_NON_UNIQUE_NAME_COLUMN, 
&non_unique_name,
+            -1);
+      }
+      gtk_tree_path_free (tree_path);
+    }
+    if (non_unique_name == NULL)
+    {
+      gtk_cell_editable_editing_done (editable);
+      return;
+    }
+    gtk_entry_set_text (entry, non_unique_name);
+    g_free (non_unique_name);
+  }
+}
+
+void
+GNUNET_GTK_namespace_manager_name_text_edited_cb (
+    GtkCellRendererText *renderer, gchar *path, gchar *new_text,
+    gpointer user_data)
+{
+  struct GNUNET_GTK_NamespaceManagerContext *ctx = user_data;
+  char *unique_name;
+  GtkTreeRowReference *order_row;
+
+  if (strlen (new_text) == 0)
+    return;
+
+  GtkTreePath *tree_path;
+  GtkTreeIter iter;
+  tree_path = gtk_tree_path_new_from_string (path);
+  if (tree_path != NULL)
+  {
+    if (gtk_tree_model_get_iter (GTK_TREE_MODEL (ctx->known_ns_store),
+        &iter, tree_path))
+    {
+      GNUNET_HashCode *nsid;
+      gtk_tree_model_get (GTK_TREE_MODEL (ctx->known_ns_store), &iter,
+          GNUNET_GTK_KNOWN_NAMESPACES_IDENTIFIER_BIN_COLUMN, &nsid,
+          GNUNET_GTK_KNOWN_NAMESPACES_ORDER_ROW_REFERENCE_COLUMN, &order_row,
+          -1);
+
+      unique_name = GNUNET_PSEUDONYM_name_uniquify (
+          GNUNET_FS_GTK_get_configuration (), nsid, new_text, NULL);
+
+      gtk_list_store_set (ctx->known_ns_store, &iter,
+          GNUNET_GTK_KNOWN_NAMESPACES_NON_UNIQUE_NAME_COLUMN, new_text,
+          GNUNET_GTK_KNOWN_NAMESPACES_NAME_COLUMN, unique_name,
+          -1);
+
+      if (order_row != NULL)
+      {
+        GtkTreeIter order_iter;
+        if (GNUNET_OK == GNUNET_GTK_get_iter_from_reference (order_row, 
&order_iter))
+        {
+          gtk_list_store_set (ctx->ns_order_store, &order_iter,
+            GNUNET_GTK_NAMESPACE_ORDER_NAME_COLUMN, unique_name,
+            -1);
+        }
+      }
+
+      GNUNET_free (unique_name);
+    }
+    gtk_tree_path_free (tree_path);
+  }
+}
+
+void
+GNUNET_GTK_namespace_manager_namespace_details_type_text_edited_cb (
+    GtkCellRendererText *renderer, gchar *path, gchar *new_text,
+    gpointer user_data)
+{
+  /* Changing metadata type is more difficult than simply entering a
+   * new string, see publication editing dialog. So this is disabled
+   * for now. In fact, it's not going to be a Text renderer when it's done.
+   */
+  /*
+  struct GNUNET_GTK_NamespaceManagerContext *ctx = cls;
+  GtkTreeIter iter;
+  if (gtk_tree_model_get_iter (GTK_TREE_MODEL (ctx->ns_details_store),
+      &iter, path))
+  {
+    gtk_list_store_set (ctx->ns_details_store, &iter,
+        GNUNET_GTK_NAMESPACE_DETAILS_TYPE_COLUMN, new_text,
+        -1);
+  }
+  */
+}
+
+void
+GNUNET_GTK_namespace_manager_namespace_details_value_text_edited_cb (
+    GtkCellRendererText *renderer, gchar *path, gchar *new_text,
+    gpointer user_data)
+{
+  struct GNUNET_GTK_NamespaceManagerContext *ctx = user_data;
+  GtkTreePath *tree_path;
+  GtkTreeIter iter;
+  tree_path = gtk_tree_path_new_from_string (path);
+  if (tree_path != NULL)
+  {
+    if (gtk_tree_model_get_iter (GTK_TREE_MODEL (ctx->ns_details_store),
+        &iter, tree_path))
+    {
+      char *old_text;
+      gtk_tree_model_get (GTK_TREE_MODEL (ctx->ns_details_store), &iter,
+          GNUNET_GTK_NAMESPACE_DETAILS_VALUE_COLUMN, &old_text,
+          -1);
+      if (strcmp (old_text, new_text) != 0)
+      {
+        gtk_list_store_set (ctx->ns_details_store, &iter,
+            GNUNET_GTK_NAMESPACE_DETAILS_VALUE_COLUMN, new_text,
+            -1);
+        gtk_widget_set_sensitive (ctx->details_apply_button, TRUE);
+      }
+      g_free (old_text);
+    }
+    gtk_tree_path_free (tree_path);
+  }
+}
+
+/**
+ * Iterator over all known pseudonyms.
+ * Populate "known ns" and "ns order" lists.
+ *
+ * @param cls closure
+ * @param pseudonym hash code of public key of pseudonym
+ * @param md meta data known about the pseudonym
+ * @param rating the local rating of the pseudonym
+ * @return GNUNET_OK to continue iteration, GNUNET_SYSERR to abort
+ */
+static int
+populate_known_ns_list (void *cls, const GNUNET_HashCode *pseudonym,
+    const char *name, const char *unique_name,
+    const struct GNUNET_CONTAINER_MetaData *md, int rating)
+{
+  struct GNUNET_GTK_NamespaceManagerContext *ctx = cls;
+  GNUNET_HashCode *nsid;
+  struct GNUNET_CRYPTO_HashAsciiEncoded identifier;
+  GtkTreeIter known_iter, order_iter;
+  struct GNUNET_CONTAINER_MetaData *md_copy;
+  char *non_null_name, *non_null_unique_name;
+
+  nsid = GNUNET_malloc (sizeof (GNUNET_HashCode));
+  *nsid = *pseudonym;
+
+  GNUNET_CRYPTO_hash_to_enc (nsid, &identifier);
+
+  GNUNET_PSEUDONYM_get_info (GNUNET_FS_GTK_get_configuration (),
+                             nsid, NULL, NULL, &non_null_name, NULL);
+  non_null_unique_name = GNUNET_PSEUDONYM_name_uniquify (
+      GNUNET_FS_GTK_get_configuration (), nsid, non_null_name, NULL);
+
+  md_copy = GNUNET_CONTAINER_meta_data_duplicate (md);
+
+  gtk_list_store_insert_with_values (ctx->known_ns_store, &known_iter, 
G_MAXINT,
+      GNUNET_GTK_KNOWN_NAMESPACES_IS_MINE_COLUMN, FALSE,
+      GNUNET_GTK_KNOWN_NAMESPACES_RANK_COLUMN, rating,
+      GNUNET_GTK_KNOWN_NAMESPACES_NAME_COLUMN, non_null_unique_name,
+      GNUNET_GTK_KNOWN_NAMESPACES_IDENTIFIER_COLUMN, identifier.encoding,
+      GNUNET_GTK_KNOWN_NAMESPACES_IDENTIFIER_BIN_COLUMN, nsid,
+      GNUNET_GTK_KNOWN_NAMESPACES_ORDER_ROW_REFERENCE_COLUMN, NULL,
+      GNUNET_GTK_KNOWN_NAMESPACES_METADATA_COLUMN, md_copy,
+      GNUNET_GTK_KNOWN_NAMESPACES_NON_UNIQUE_NAME_COLUMN, non_null_name,
+      -1);
+
+  if (rating >= 0)
+  {
+    GtkTreeRowReference *rr = GNUNET_GTK_get_reference_from_iter 
(GTK_TREE_MODEL (
+        ctx->known_ns_store), &known_iter);
+    gtk_list_store_insert_with_values (ctx->ns_order_store, &order_iter, 
G_MAXINT,
+        GNUNET_GTK_NAMESPACE_ORDER_RANK_COLUMN, rating,
+        GNUNET_GTK_NAMESPACE_ORDER_NAME_COLUMN, non_null_unique_name,
+        GNUNET_GTK_NAMESPACE_ORDER_IDENTIFIER_COLUMN, identifier.encoding,
+        GNUNET_GTK_NAMESPACE_ORDER_IDENTIFIER_BIN_COLUMN, nsid,
+        GNUNET_GTK_NAMESPACE_ORDER_KNOWN_ROW_REFERENCE_COLUMN, rr,
+        -1);
+    rr = GNUNET_GTK_get_reference_from_iter (GTK_TREE_MODEL 
(ctx->ns_order_store),
+        &order_iter);
+    gtk_list_store_set (ctx->known_ns_store, &known_iter,
+      GNUNET_GTK_KNOWN_NAMESPACES_ORDER_ROW_REFERENCE_COLUMN, rr, -1);
+  }
+  GNUNET_free (non_null_name);
+  GNUNET_free (non_null_unique_name);
+
+  return GNUNET_OK;
+}
+
+static void
+apply_known_ns_changes (struct GNUNET_GTK_NamespaceManagerContext *ctx)
+{
+  GtkTreeIter iter;
+  gint i;
+  gint row_count;
+  GNUNET_HashCode *nsid;
+  char *name;
+  int32_t rank;
+  struct GNUNET_CONTAINER_MetaData *md;
+
+  row_count = gtk_tree_model_iter_n_children (GTK_TREE_MODEL (
+      ctx->known_ns_store), NULL);
+  if (TRUE != gtk_tree_model_get_iter_first (GTK_TREE_MODEL (
+      ctx->known_ns_store), &iter))
+    return;
+
+  for (i = 0; i < row_count; i++)
+  {
+    gtk_tree_model_get (GTK_TREE_MODEL (ctx->known_ns_store), &iter,
+        GNUNET_GTK_KNOWN_NAMESPACES_IDENTIFIER_BIN_COLUMN, &nsid,
+        GNUNET_GTK_KNOWN_NAMESPACES_NON_UNIQUE_NAME_COLUMN, &name,
+        GNUNET_GTK_KNOWN_NAMESPACES_METADATA_COLUMN, &md,
+        GNUNET_GTK_KNOWN_NAMESPACES_RANK_COLUMN, &rank,
+        -1);
+    GNUNET_PSEUDONYM_set_info (GNUNET_FS_GTK_get_configuration (),
+        nsid, name, md, rank);
+    g_free (name);
+    if (TRUE != gtk_tree_model_iter_next (GTK_TREE_MODEL (
+      ctx->known_ns_store), &iter))
+      break;
+  }
+}
+
+static void
+free_lists_contents (struct GNUNET_GTK_NamespaceManagerContext *ctx)
+{
+  GtkTreeIter iter;
+  gint i;
+  gint row_count;
+  GNUNET_HashCode *nsid;
+  GtkTreeRowReference *order_row;
+  struct GNUNET_CONTAINER_MetaData *md;
+
+  row_count = gtk_tree_model_iter_n_children (GTK_TREE_MODEL (
+      ctx->known_ns_store), NULL);
+  if (TRUE != gtk_tree_model_get_iter_first (GTK_TREE_MODEL (
+      ctx->known_ns_store), &iter))
+    return;
+
+  for (i = 0; i < row_count; i++)
+  {
+    gtk_tree_model_get (GTK_TREE_MODEL (ctx->known_ns_store), &iter,
+        GNUNET_GTK_KNOWN_NAMESPACES_IDENTIFIER_BIN_COLUMN, &nsid,
+        GNUNET_GTK_KNOWN_NAMESPACES_ORDER_ROW_REFERENCE_COLUMN, &order_row,
+        GNUNET_GTK_KNOWN_NAMESPACES_METADATA_COLUMN, &md,
+        -1);
+    if (order_row != NULL)
+    {
+      GtkTreeIter order_iter;
+      if (GNUNET_OK == GNUNET_GTK_get_iter_from_reference (order_row, 
&order_iter))
+      {
+        GtkTreeRowReference *known_row;
+        gtk_tree_model_get (GTK_TREE_MODEL (ctx->ns_order_store), &order_iter,
+            GNUNET_GTK_NAMESPACE_ORDER_KNOWN_ROW_REFERENCE_COLUMN, &known_row,
+            -1);
+        if (known_row != NULL)
+          gtk_tree_row_reference_free (known_row);
+      }
+      gtk_tree_row_reference_free (order_row);
+    }
+    GNUNET_CONTAINER_meta_data_destroy (md);
+    GNUNET_free (nsid);
+    if (TRUE != gtk_tree_model_iter_next (GTK_TREE_MODEL (
+      ctx->known_ns_store), &iter))
+      break;
+  }
+
+  gtk_list_store_clear (ctx->ns_order_store);
+  gtk_list_store_clear (ctx->known_ns_store);
+  gtk_list_store_clear (ctx->ns_details_store);
+  if (ctx->uneditable_md != NULL)
+    GNUNET_CONTAINER_meta_data_destroy (ctx->uneditable_md);
+}
+
+void
+GNUNET_GTK_namespace_manager_dialog_response_cb (GtkDialog *dialog,
+    gint response_id, gpointer user_data)
+{
+  struct GNUNET_GTK_NamespaceManagerContext *ctx = user_data;
+  switch (response_id)
+  {
+  case GTK_RESPONSE_APPLY:
+  case GTK_RESPONSE_OK:
+    apply_known_ns_changes (ctx);
+    break;
+  default:
+    break;
+  }
+  switch (response_id)
+  {
+  case GTK_RESPONSE_APPLY:
+    break;
+  case GTK_RESPONSE_OK:
+  case GTK_RESPONSE_CANCEL:
+  default:
+    free_lists_contents (ctx);
+    gtk_widget_destroy (GTK_WIDGET (ctx->namespace_manager));
+    GNUNET_free (ctx);
+    ns_manager = NULL;
+  }
+}
+
+
+static gboolean
+mark_as_mine (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter,
+    gpointer data)
+{
+  const GNUNET_HashCode *mine_id = data;
+  const GNUNET_HashCode *ns_id;
+
+  gtk_tree_model_get (model, iter,
+      GNUNET_GTK_KNOWN_NAMESPACES_IDENTIFIER_BIN_COLUMN, &ns_id, -1);
+
+  if (memcmp (ns_id, mine_id, sizeof (GNUNET_HashCode)) != 0)
+    return FALSE;
+
+  gtk_list_store_set (GTK_LIST_STORE (model), iter,
+      GNUNET_GTK_KNOWN_NAMESPACES_IS_MINE_COLUMN, TRUE, -1);
+  return TRUE;
+}
+
+/**
+ * Callback with information about local (!) namespaces.
+ * Contains the names of the local namespace and the global
+ * ID.
+ *
+ * @param cls closure
+ * @param name human-readable identifier of the namespace
+ * @param id hash identifier for the namespace
+ */
+static void
+mark_namespaces_as_mine (void *cls, const char *name,
+    const GNUNET_HashCode * id)
+{
+  struct GNUNET_GTK_NamespaceManagerContext *ctx = cls;
+
+  gtk_tree_model_foreach (GTK_TREE_MODEL (ctx->known_ns_store), mark_as_mine,
+      (gpointer) id);
+}
+
+/**
+ * Type of a function that libextractor calls for each
+ * meta data item found.
+ *
+ * @param cls closure (user-defined)
+ * @param plugin_name name of the plugin that produced this value;
+ *        special values can be used (i.e. '&lt;zlib&gt;' for zlib being
+ *        used in the main libextractor library and yielding
+ *        meta data).
+ * @param type libextractor-type describing the meta data
+ * @param format basic format information about data 
+ * @param data_mime_type mime-type of data (not of the original file);
+ *        can be NULL (if mime-type is not known)
+ * @param data actual meta-data found
+ * @param data_len number of bytes in data
+ * @return 0 to continue extracting, 1 to abort
+ */ 
+static int
+populate_details_list (void *cls, const char *plugin_name,
+    enum EXTRACTOR_MetaType type, enum EXTRACTOR_MetaFormat format,
+    const char *data_mime_type, const char *data, size_t data_len)
+{
+  struct GNUNET_GTK_NamespaceManagerContext *ctx = cls;
+  const char *type_name;
+  char *data_utf8;
+
+  if (format == EXTRACTOR_METAFORMAT_UTF8 ||
+      format == EXTRACTOR_METAFORMAT_C_STRING)
+  {
+    type_name = EXTRACTOR_metatype_to_string (type);
+    /* TODO: translate type_name using dgettext? */
+    data_utf8 = GNUNET_FS_GTK_dubious_meta_to_utf8 (format, data, data_len);
+    if (data != NULL)
+    {
+      gtk_list_store_insert_with_values (ctx->ns_details_store, NULL, G_MAXINT,
+          GNUNET_GTK_NAMESPACE_DETAILS_PLUGIN_NAME_COLUMN, plugin_name,
+          GNUNET_GTK_NAMESPACE_DETAILS_TYPE_BIN_COLUMN, type,
+          GNUNET_GTK_NAMESPACE_DETAILS_TYPE_COLUMN, type_name,
+          GNUNET_GTK_NAMESPACE_DETAILS_FORMAT_COLUMN,
+          EXTRACTOR_METAFORMAT_UTF8,
+          GNUNET_GTK_NAMESPACE_DETAILS_DATA_MIME_COLUMN, data_mime_type,
+          GNUNET_GTK_NAMESPACE_DETAILS_VALUE_COLUMN, data_utf8,
+          -1);
+      GNUNET_free (data_utf8);
+      return 0;
+    }
+  }
+  GNUNET_CONTAINER_meta_data_insert (ctx->uneditable_md,
+      plugin_name, type, format, data_mime_type, data, data_len);
+  return 0;
+}
+
+static void
+ns_details_selection_changed (GtkTreeSelection *treeselection,
+    gpointer user_data)
+{
+  struct GNUNET_GTK_NamespaceManagerContext *ctx = user_data;
+  GtkTreeIter iter;
+
+  if (FALSE == gtk_tree_selection_get_selected (ctx->ns_details_sel, NULL, 
&iter))
+  {
+    gtk_widget_set_sensitive (ctx->details_delete_button, FALSE);
+    return;
+  }
+
+  gtk_widget_set_sensitive (ctx->details_delete_button, TRUE);
+}
+
+static void
+known_ns_selection_changed (GtkTreeSelection *treeselection,
+    gpointer user_data)
+{
+  struct GNUNET_GTK_NamespaceManagerContext *ctx = user_data;
+  GtkTreeIter iter;
+  const struct GNUNET_CONTAINER_MetaData *md;
+
+  if (FALSE == gtk_tree_selection_get_selected (ctx->known_ns_sel, NULL, 
&iter))
+    return;
+
+  gtk_tree_model_get (GTK_TREE_MODEL (ctx->known_ns_store), &iter,
+      GNUNET_GTK_KNOWN_NAMESPACES_METADATA_COLUMN, &md,
+      -1);
+  if (ctx->uneditable_md != NULL)
+    GNUNET_CONTAINER_meta_data_clear (ctx->uneditable_md);
+  else
+    ctx->uneditable_md = GNUNET_CONTAINER_meta_data_create ();
+  gtk_list_store_clear (ctx->ns_details_store);
+  gtk_widget_set_sensitive (ctx->details_apply_button, FALSE);
+  GNUNET_CONTAINER_meta_data_iterate ((const struct GNUNET_CONTAINER_MetaData 
*) md,
+      populate_details_list, ctx);
+  gtk_widget_set_sensitive (ctx->details_apply_button, FALSE);
+}
+
+void
+GNUNET_GTK_namespace_manager_open ()
+{
+  struct GNUNET_GTK_NamespaceManagerContext *ctx;
+
+  if (ns_manager != NULL)
+    return;
+
+  ctx = GNUNET_malloc (sizeof (struct GNUNET_GTK_NamespaceManagerContext));
+  ctx->builder = GNUNET_GTK_get_new_builder 
("gnunet_fs_gtk_namespace_manager.glade", ctx);
+  if (ctx->builder == NULL)
+  {
+    GNUNET_break (0);
+    GNUNET_free (ctx);
+    return;
+  }
+
+  /* initialize widget references */
+  ctx->known_ns = GTK_WIDGET (gtk_builder_get_object (ctx->builder,
+      "GNUNET_GTK_namespace_manager_known_treeview"));
+  ctx->ns_order = GTK_WIDGET (gtk_builder_get_object (ctx->builder,
+      "GNUNET_GTK_namespace_manager_namespace_order_treeview"));
+  ctx->ns_details = GTK_WIDGET (gtk_builder_get_object (ctx->builder,
+      "GNUNET_GTK_namespace_manager_namespace_details_treeview"));
+  ctx->known_ns_sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (
+      ctx->known_ns));
+  ctx->ns_order_sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (
+      ctx->ns_order));
+  ctx->ns_details_sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (
+      ctx->ns_details));
+  ctx->ns_order_store = GTK_LIST_STORE (gtk_tree_view_get_model (
+      GTK_TREE_VIEW (ctx->ns_order)));
+  ctx->known_ns_store = GTK_LIST_STORE (gtk_tree_view_get_model (
+      GTK_TREE_VIEW (ctx->known_ns)));
+  ctx->ns_details_store = GTK_LIST_STORE (gtk_tree_view_get_model (
+      GTK_TREE_VIEW (ctx->ns_details)));
+  ctx->namespace_manager = GTK_WINDOW (gtk_builder_get_object (
+      ctx->builder, "GNUNET_GTK_namespace_manager_dialog"));
+  ctx->details_apply_button = GTK_WIDGET (gtk_builder_get_object (ctx->builder,
+      "GNUNET_GTK_namespace_manager_namespace_details_apply_button"));
+  ctx->details_delete_button = GTK_WIDGET (gtk_builder_get_object 
(ctx->builder,
+      "GNUNET_GTK_namespace_manager_namespace_details_delete_button"));
+  ctx->order_rank = gtk_tree_view_get_column (GTK_TREE_VIEW (ctx->ns_order), 
0);
+  ctx->order_name = gtk_tree_view_get_column (GTK_TREE_VIEW (ctx->ns_order), 
1);
+  ctx->order_id = gtk_tree_view_get_column (GTK_TREE_VIEW (ctx->ns_order), 2);
+
+  /* connect signals; FIXME-GTK3: these could be connected with (modern) Glade 
*/
+  g_signal_connect (G_OBJECT (ctx->known_ns_sel), "changed",
+      G_CALLBACK (known_ns_selection_changed), ctx);
+  g_signal_connect (G_OBJECT (ctx->ns_details_sel), "changed",
+      G_CALLBACK (ns_details_selection_changed), ctx);
+
+  /* populate namespace model */
+  (void) GNUNET_PSEUDONYM_list_all (GNUNET_FS_GTK_get_configuration (),
+      populate_known_ns_list, ctx);
+
+  /* mark our own namespaces as such */
+  GNUNET_FS_namespace_list (GNUNET_FS_GTK_get_fs_handle (),
+      mark_namespaces_as_mine, ctx);
+
+  /* sort namespace order list by rank (initially) */
+  sort_order_list (ctx, GNUNET_GTK_NAMESPACE_ORDER_RANK_COLUMN);
+
+  ns_manager = ctx;
+
+  gtk_widget_set_sensitive (ctx->details_apply_button, FALSE);
+
+  /* show dialog */
+  gtk_window_present (GTK_WINDOW (ctx->namespace_manager));
+}
+
+/* end of gnunet-fs-gtk_namespace_manager.c */




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