[installer] Use get_builder()

plugin_installer/config.ui

+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Generated with glade 3.22.1 -->
+<interface>
+  <requires lib="gtk+" version="3.20"/>
+  <object class="GtkGrid" id="config_grid">
+    <property name="visible">True</property>
+    <property name="can_focus">False</property>
+    <property name="margin_top">12</property>
+    <property name="margin_bottom">12</property>
+    <child>
+      <object class="GtkCheckButton" id="check_update">
+        <property name="label" translatable="yes">Check update after start</property>
+        <property name="visible">True</property>
+        <property name="can_focus">True</property>
+        <property name="focus_on_click">False</property>
+        <property name="receives_default">False</property>
+        <property name="draw_indicator">True</property>
+      </object>
+      <packing>
+        <property name="left_attach">0</property>
+        <property name="top_attach">0</property>
+      </packing>
+    </child>
+  </object>
+</interface>

plugin_installer/config_dialog.ui → plugin_installer/installer.ui

@@ -2,37 +2,6 @@
 <!-- Generated with glade 3.22.1 -->
 <interface>
   <requires lib="gtk+" version="3.20"/>
-  <object class="GtkWindow" id="ConfigWindow">
-    <property name="can_focus">False</property>
-    <child>
-      <placeholder/>
-    </child>
-    <child>
-      <object class="GtkGrid" id="config_grid">
-        <property name="visible">True</property>
-        <property name="can_focus">False</property>
-        <property name="margin_left">12</property>
-        <property name="margin_right">12</property>
-        <property name="margin_top">12</property>
-        <property name="margin_bottom">12</property>
-        <child>
-          <object class="GtkCheckButton" id="check_update">
-            <property name="label" translatable="yes">Check update after start</property>
-            <property name="visible">True</property>
-            <property name="can_focus">False</property>
-            <property name="focus_on_click">False</property>
-            <property name="receives_default">False</property>
-            <property name="draw_indicator">True</property>
-            <signal name="toggled" handler="on_check_update_toggled" swapped="no"/>
-          </object>
-          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">0</property>
-          </packing>
-        </child>
-      </object>
-    </child>
-  </object>
   <object class="GtkListStore" id="plugin_store">
     <columns>
       <!-- column-name icon -->

plugin_installer/plugin_installer.py

@@ -36,22 +36,18 @@ from urllib.request import urlopen
 
 from gi.repository import Gtk
 from gi.repository import GdkPixbuf
-from gi.repository import Pango
 from gi.repository import GLib
 
-try:
-    from common import gajim as app
-    from plugins import GajimPlugin
-    from plugins.gui import GajimPluginConfigDialog
-    from dialogs import WarningDialog, HigDialog, YesNoDialog
-    from gtkgui_helpers import get_action
-except ImportError:
-    from gajim.common import app
-    from gajim.common import configpaths
-    from gajim.plugins import GajimPlugin
-    from gajim.plugins.gui import GajimPluginConfigDialog
-    from gajim.dialogs import WarningDialog, HigDialog, YesNoDialog
-    from gajim.gtkgui_helpers import get_action
+from gajim.common import app
+from gajim.common import configpaths
+from gajim.plugins import GajimPlugin
+from gajim.plugins.gui import GajimPluginConfigDialog
+from gajim.plugins.plugins_i18n import _
+from gajim.plugins.helpers import get_builder
+from gajim.gtk.dialogs import WarningDialog
+from gajim.gtk.dialogs import HigDialog
+from gajim.gtk.dialogs import YesNoDialog
+from gajim.gtkgui_helpers import get_action
 
 log = logging.getLogger('gajim.plugin_system.plugin_installer')
 
@@ -176,11 +172,9 @@ class PluginInstaller(GajimPlugin):
         self.window = plugin_win.window
         id_ = self.window.connect('destroy', self.on_win_destroy)
         self.connected_ids[id_] = self.window
-        self.Gtk_BUILDER_FILE_PATH = self.local_file_path('config_dialog.ui')
-        self.xml = Gtk.Builder()
-        self.xml.set_translation_domain('gajim_plugins')
-        self.xml.add_objects_from_file(self.Gtk_BUILDER_FILE_PATH,
-                                       ['refresh', 'available_plugins_box', 'plugin_store'])
+        path = self.local_file_path('installer.ui')
+        self.xml = get_builder(
+            path, widgets=['refresh', 'available_plugins_box', 'plugin_store'])
 
         widgets_to_extract = (
             'available_plugins_box', 'install_plugin_button', 'plugin_name_label',
@@ -511,18 +505,14 @@ class DownloadAsync(threading.Thread):
 
 class PluginInstallerPluginConfigDialog(GajimPluginConfigDialog):
     def init(self):
-        glade_file_path = self.plugin.local_file_path('config_dialog.ui')
-        self.xml = Gtk.Builder()
-        self.xml.set_translation_domain('gajim_plugins')
-        self.xml.add_objects_from_file(glade_file_path, ['config_grid'])
-        grid = self.xml.get_object('config_grid')
-        self.get_child().pack_start(grid, True, True, 0)
+        glade_file_path = self.plugin.local_file_path('config.ui')
+        self.xml = get_builder(glade_file_path)
+        self.get_child().pack_start(self.xml.config_grid, True, True, 0)
 
         self.xml.connect_signals(self)
 
     def on_run(self):
-        self.xml.get_object('check_update').set_active(
-            self.plugin.config['check_update'])
+        self.xml.check_update.set_active(self.plugin.config['check_update'])
 
     def on_check_update_toggled(self, widget):
         self.plugin.config['check_update'] = widget.get_active()