duplicate removal support for the fav list (#159)

app/ui/main.glade

@@ -1003,6 +1003,11 @@ Author: Dmitriy Yefremov
     <property name="visible">True</property>
     <property name="can_focus">False</property>
     <property name="stock">gtk-find-and-replace</property>
+  </object>
+    <object class="GtkImage" id="remove_duplicates_image">
+    <property name="visible">True</property>
+    <property name="can_focus">False</property>
+    <property name="icon_name">edit-select-all</property>
   </object>
   <object class="GtkImage" id="mark_not_in_bq_image">
     <property name="visible">True</property>
@@ -4751,6 +4756,17 @@ Author: Dmitriy Yefremov
         <signal name="activate" handler="on_mark_duplicates" swapped="no"/>
       </object>
     </child>
+    <child>
+      <object class="GtkImageMenuItem" id="fav_remove_dup_popup_item">
+        <property name="label" translatable="yes">Remove duplicates</property>
+        <property name="visible">True</property>
+        <property name="sensitive">False</property>
+        <property name="can_focus">False</property>
+        <property name="image">remove_duplicates_image</property>
+        <property name="use_stock">False</property>
+        <signal name="activate" handler="on_remove_duplicates" swapped="no"/>
+      </object>
+    </child>
     <child>
       <object class="GtkSeparatorMenuItem" id="fav_popup_separator_3">
         <property name="visible">True</property>

app/ui/main.py

@@ -98,7 +98,8 @@ class Application(Gtk.Application):
     _FAV_ELEMENTS = ("fav_cut_popup_item", "fav_paste_popup_item", "fav_locate_popup_item", "fav_iptv_popup_item",
                      "fav_insert_marker_popup_item", "fav_insert_space_popup_item", "fav_edit_sub_menu_popup_item",
                      "fav_edit_popup_item", "fav_picon_popup_item", "fav_copy_popup_item", "fav_add_alt_popup_item",
-                     "fav_epg_configuration_popup_item", "fav_mark_dup_popup_item", "fav_reference_popup_item")
+                     "fav_epg_configuration_popup_item", "fav_mark_dup_popup_item", "fav_remove_dup_popup_item",
+                     "fav_reference_popup_item")
 
     _BOUQUET_ELEMENTS = ("bouquets_new_popup_item", "bouquets_edit_popup_item", "bouquets_cut_popup_item",
                          "bouquets_copy_popup_item", "bouquets_paste_popup_item", "new_header_button",
@@ -174,6 +175,7 @@ class Application(Gtk.Application):
                     "on_fav_press": self.on_fav_press,
                     "on_locate_in_services": self.on_locate_in_services,
                     "on_mark_duplicates": self.on_mark_duplicates,
+                    "on_remove_duplicates": self.on_remove_duplicates,
                     "on_services_mark_not_in_bouquets": self.on_services_mark_not_in_bouquets,
                     "on_services_clear_marked": self.on_services_clear_marked,
                     "on_services_clear_new_marked": self.on_services_clear_new_marked,
@@ -4022,6 +4024,26 @@ class Application(Gtk.Application):
             if r[Column.FAV_SERVICE] in dup:
                 r[Column.FAV_BACKGROUND] = self._NEW_COLOR
 
+    def on_remove_duplicates(self, item):
+        exist = set()
+        to_remove = []
+        for r in self._fav_model:
+            fav_id = r[Column.FAV_ID]
+            if fav_id in exist:
+                to_remove.append(r.iter)
+            else:
+                exist.add(fav_id)
+
+        count = len(to_remove)
+        if count:
+            if show_dialog(DialogType.QUESTION, self._main_window) != Gtk.ResponseType.OK:
+                return
+            gen = self.remove_favs(to_remove, self._fav_model)
+            GLib.idle_add(lambda: next(gen, False))
+            self.show_info_message(f"{get_message('Done!')} {get_message('Removed')}: {count}")
+        else:
+            self.show_info_message(f"{get_message('Done!')} {get_message('Found')}: {count}")
+
     def on_services_mark_not_in_bouquets(self, item):
         if self.is_data_loading():
             self.show_error_message("Data loading in progress!")

po/be/demon-editor.po

@@ -1440,3 +1440,9 @@ msgstr "Уключыць падтрымку пашырэнняў"
 
 msgid "After uploading the changes you may need to completely reboot the receiver!"
 msgstr "Пасля загрузкі змен можа запатрабавацца перазапуск рэсівера!"
+
+msgid "Remove duplicates"
+msgstr "Выдаліць дублікаты"
+
+msgid "Removed"
+msgstr "Выдалена"

po/de/demon-editor.po

@@ -1454,3 +1454,9 @@ msgstr "Erweiterungen Unterstützung aktivieren"
 
 msgid "After uploading the changes you may need to completely reboot the receiver!"
 msgstr "Nach dem Hochladen der Änderungen muss den Receiver eventuell komplett neu starten!"
+
+msgid "Remove duplicates"
+msgstr "Duplikate entfernen"
+
+msgid "Removed"
+msgstr "Entfernt"

po/ru/demon-editor.po

@@ -1437,3 +1437,9 @@ msgstr "Включить поддержку расширений"
 
 msgid "After uploading the changes you may need to completely reboot the receiver!"
 msgstr "После загрузки изменений может потребоваться перезапуск ресивера!"
+
+msgid "Remove duplicates"
+msgstr "Удалить дубликаты"
+
+msgid "Removed"
+msgstr "Удалено"