[pitivi] dialogs: Refactor PluginPreferencesRow to use Gtk Templates

[Alexandru Băluț <alexbalut src gnome org>]

commit 20555f2e28a6817f56b5e48468b72501f64f3268
Author: Fabián Orccón <cfoch fabian gmail com>
Date:   Sun Dec 20 21:11:33 2020 -0500

    dialogs: Refactor PluginPreferencesRow to use Gtk Templates

 data/ui/pluginpreferencesrow.ui | 73 +++++++++++++++++++++++++++++++++++++++++
 pitivi/dialogs/prefs.py         | 37 ++++++---------------
 2 files changed, 83 insertions(+), 27 deletions(-)
---
diff --git a/data/ui/pluginpreferencesrow.ui b/data/ui/pluginpreferencesrow.ui
new file mode 100644
index 000000000..3c6371cb6
--- /dev/null
+++ b/data/ui/pluginpreferencesrow.ui
@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Generated with glade 3.38.2 -->
+<interface>
+  <requires lib="gtk+" version="3.24"/>
+  <template class="PluginPreferencesRow" parent="GtkListBoxRow">
+    <property name="visible">True</property>
+    <property name="can-focus">False</property>
+    <child>
+      <object class="GtkBox">
+        <property name="visible">True</property>
+        <property name="can-focus">False</property>
+        <property name="margin-start">12</property>
+        <property name="margin-end">12</property>
+        <property name="margin-top">6</property>
+        <property name="margin-bottom">6</property>
+        <child>
+          <object class="GtkBox">
+            <property name="visible">True</property>
+            <property name="can-focus">False</property>
+            <property name="orientation">vertical</property>
+            <child>
+              <object class="GtkLabel" id="_title_label">
+                <property name="visible">True</property>
+                <property name="can-focus">False</property>
+                <property name="xalign">0</property>
+              </object>
+              <packing>
+                <property name="expand">True</property>
+                <property name="fill">True</property>
+                <property name="position">0</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkLabel" id="_description_label">
+                <property name="visible">True</property>
+                <property name="can-focus">False</property>
+                <property name="use-markup">True</property>
+                <property name="xalign">0</property>
+                <style>
+                  <class name="dim-label"/>
+                </style>
+              </object>
+              <packing>
+                <property name="expand">True</property>
+                <property name="fill">True</property>
+                <property name="position">1</property>
+              </packing>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="fill">True</property>
+            <property name="position">0</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkSwitch" id="switch">
+            <property name="visible">True</property>
+            <property name="can-focus">True</property>
+            <property name="valign">center</property>
+            <property name="margin-start">6</property>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="fill">False</property>
+            <property name="pack-type">end</property>
+            <property name="position">1</property>
+          </packing>
+        </child>
+      </object>
+    </child>
+  </template>
+</interface>
diff --git a/pitivi/dialogs/prefs.py b/pitivi/dialogs/prefs.py
index 14d593917..22ed36ec4 100644
--- a/pitivi/dialogs/prefs.py
+++ b/pitivi/dialogs/prefs.py
@@ -714,19 +714,22 @@ class CustomShortcutDialog(Gtk.Dialog):
         self.destroy()
 
 
+@Gtk.Template(filename=os.path.join(get_ui_dir(), "pluginpreferencesrow.ui"))
 class PluginPreferencesRow(Gtk.ListBoxRow):
     """A row in the plugins list allowing activating and deactivating a plugin."""
 
+    __gtype_name__ = "PluginPreferencesRow"
+
+    _title_label = Gtk.Template.Child()
+    _description_label = Gtk.Template.Child()
+    switch = Gtk.Template.Child()
+
     def __init__(self, item):
-        Gtk.ListBoxRow.__init__(self)
+        super().__init__()
         self.plugin_info = item.plugin_info
+        self.switch_handler_id = None
 
-        self._container = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL)
-        self.add(self._container)
-
-        self._title_box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
-        self._title_label = Gtk.Label(self.plugin_info.get_name())
-        self._description_label = Gtk.Label()
+        self._title_label.set_text(self.plugin_info.get_name())
 
         description = self.plugin_info.get_description()
         if not description:
@@ -736,26 +739,6 @@ class PluginPreferencesRow(Gtk.ListBoxRow):
         else:
             self._description_label.set_text(description)
 
-        self.switch = Gtk.Switch()
-        self.switch.props.valign = Gtk.Align.CENTER
-        self.switch_handler_id = None
-
-        # Pack widgets.
-        self._title_box.pack_start(self._title_label, True, True, 0)
-        self._title_box.pack_start(self._description_label, True, True, 0)
-        self._container.pack_start(self._title_box, True, True, 0)
-        self._container.pack_end(self.switch, False, False, 0)
-
-        # Widgets' design.
-        self._container.props.margin_left = PADDING * 2
-        self._container.props.margin_right = PADDING * 2
-        self._container.props.margin_top = PADDING
-        self._container.props.margin_bottom = PADDING
-        self._title_label.props.xalign = 0
-        self._description_label.props.xalign = 0
-        self._description_label.get_style_context().add_class("dim-label")
-        self.switch.props.margin_left = PADDING
-
 
 class PluginItem(GObject.Object):
     """Holds the data of a plugin info for a Gio.ListStore."""