[gnome-tweaks/insensitive-desktop-icons] desktop: Make desktop icons switch insensitive in classic mode

[Carlos Soriano <csoriano src gnome org>]

commit fd68779956bd7c3e4416c77f3f3b673b9b9a6079
Author: Carlos Soriano <csoriano redhat com>
Date:   Wed Sep 5 16:52:34 2018 +0200

    desktop: Make desktop icons switch insensitive in classic mode
    
    It's not possible to disable them there, so disable the button
    to not be confusing.
    
    Patch by zhengqiang at https://bugzilla.gnome.org/show_bug.cgi?id=785513
    
    Closes: https://gitlab.gnome.org/GNOME/gnome-tweaks/issues/101

 gtweak/tweaks/tweak_group_desktop.py | 7 +++++++
 gtweak/widgets.py                    | 6 +++---
 2 files changed, 10 insertions(+), 3 deletions(-)
---
diff --git a/gtweak/tweaks/tweak_group_desktop.py b/gtweak/tweaks/tweak_group_desktop.py
index f55c696..143f638 100644
--- a/gtweak/tweaks/tweak_group_desktop.py
+++ b/gtweak/tweaks/tweak_group_desktop.py
@@ -3,8 +3,15 @@
 # License-Filename: LICENSES/GPL-3.0
 
 from gtweak.widgets import ListBoxTweakGroup, GSettingsSwitchTweak, Title
+from gtweak.gshellwrapper import GnomeShellFactory
 
 dicons = GSettingsSwitchTweak(_("Show Icons"),"org.gnome.desktop.background","show-desktop-icons")
+_shell = GnomeShellFactory().get_shell()
+if (_shell.mode == 'classic'):
+    dicons.switch.set_active(True)
+    dicons.switch.set_sensitive(False)
+else:
+    dicons.switch.set_sensitive(True)
 
 # show-desktop-icons is in gsettings-desktop-schemas, but it won't actually
 # *work* unless we have a version of Nautilus that still has the ability to
diff --git a/gtweak/widgets.py b/gtweak/widgets.py
index f1d607c..6c765a7 100644
--- a/gtweak/widgets.py
+++ b/gtweak/widgets.py
@@ -239,8 +239,8 @@ class GSettingsSwitchTweak(Gtk.Box, _GSettingsTweak, _DependableMixin):
         Gtk.Box.__init__(self, orientation=Gtk.Orientation.HORIZONTAL)
         _GSettingsTweak.__init__(self, name, schema_name, key_name, **options)
 
-        w = Gtk.Switch()
-        self.settings.bind(key_name, w, "active", Gio.SettingsBindFlags.DEFAULT)
+        self.switch = Gtk.Switch()
+        self.settings.bind(key_name, self.switch, "active", Gio.SettingsBindFlags.DEFAULT)
 
         self.add_dependency_on_tweak(
                 options.get("depends_on"),
@@ -267,7 +267,7 @@ class GSettingsSwitchTweak(Gtk.Box, _GSettingsTweak, _DependableMixin):
         vbox2_upper = Gtk.Box()
         vbox2_lower = Gtk.Box()
         vbox2.pack_start(vbox2_upper, True, True, 0)
-        vbox2.pack_start(w, False, False, 0)
+        vbox2.pack_start(self.switch, False, False, 0)
         vbox2.pack_start(vbox2_lower, True, True, 0)
 
         self.pack_start(vbox1, True, True, 0)