[gnome-notes/136-implement-the-list-row-pattern-in-main-view: 21/25] css: Remove theme change code



commit 299dab43433fcb50d855a264106cd9d8314e30b1
Author: Isaque Galdino <igaldino gmail com>
Date:   Wed Apr 15 09:44:01 2020 -0300

    css: Remove theme change code
    
    GNOME Notes won't have Adwaita specific theme dependencies hard coded
    anymore, in order to adhere to UI standards.
    
    Only styles used are relative font sizes which should inherit from
    current used theme.

 data/bjb.gresource.xml                    |  2 +-
 data/meson.build                          |  2 +-
 data/resources/{Adwaita.css => style.css} |  0
 src/bjb-application.c                     | 68 +++++++++----------------------
 4 files changed, 21 insertions(+), 51 deletions(-)
---
diff --git a/data/bjb.gresource.xml b/data/bjb.gresource.xml
index c4f13a3..d5ac291 100644
--- a/data/bjb.gresource.xml
+++ b/data/bjb.gresource.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <gresources>
   <gresource prefix="/org/gnome/Notes">
-    <file alias="Adwaita.css">resources/Adwaita.css</file>
+    <file alias="style.css">resources/style.css</file>
     <file alias="editor-toolbar.ui" compressed="true" 
preprocess="xml-stripblanks">resources/editor-toolbar.ui</file>
   </gresource>
 
diff --git a/data/meson.build b/data/meson.build
index 3732cec..bbf2c6d 100644
--- a/data/meson.build
+++ b/data/meson.build
@@ -44,7 +44,7 @@ install_data(
 )
 
 resource_data = files(
-  'resources/Adwaita.css',
+  'resources/style.css',
   'resources/note-symbolic.svg'
 )
 
diff --git a/data/resources/Adwaita.css b/data/resources/style.css
similarity index 100%
rename from data/resources/Adwaita.css
rename to data/resources/style.css
diff --git a/src/bjb-application.c b/src/bjb-application.c
index b01409b..e718890 100644
--- a/src/bjb-application.c
+++ b/src/bjb-application.c
@@ -37,17 +37,18 @@
 
 struct _BjbApplication
 {
-  GtkApplication parent_instance;
+  GtkApplication  parent_instance;
 
-  BijiManager *manager;
-  BjbSettings *settings;
+  GtkCssProvider *css_provider;
+  BijiManager    *manager;
+  BjbSettings    *settings;
 
   /* Controls. to_open is for startup */
-  GAction     *text_size;
-  gboolean     first_run;
-  gboolean     is_loaded;
-  gboolean     new_note;
-  GQueue       files_to_open; // paths
+  GAction        *text_size;
+  gboolean        first_run;
+  gboolean        is_loaded;
+  gboolean        new_note;
+  GQueue          files_to_open; // paths
 };
 
 G_DEFINE_TYPE (BjbApplication, bjb_application, GTK_TYPE_APPLICATION)
@@ -287,50 +288,18 @@ text_size_mapping_set (const GValue       *value,
 }
 
 static void
-theme_changed (GtkSettings *settings)
+bjb_apply_style (BjbApplication *self)
 {
-  static GtkCssProvider *provider = NULL;
-  g_autofree gchar *theme = NULL;
-  GdkScreen *screen;
-
-  g_object_get (settings, "gtk-theme-name", &theme, NULL);
-  screen = gdk_screen_get_default ();
-
-  if (g_str_equal (theme, "Adwaita"))
-  {
-    if (provider == NULL)
+  if (self->css_provider == NULL)
     {
-        g_autoptr(GFile) file = NULL;
+      g_autoptr(GFile) file = g_file_new_for_uri ("resource:///org/gnome/Notes/style.css");
+      self->css_provider = gtk_css_provider_new ();
+      gtk_css_provider_load_from_file (self->css_provider, file, NULL);
 
-        provider = gtk_css_provider_new ();
-        file = g_file_new_for_uri ("resource:///org/gnome/Notes/Adwaita.css");
-        gtk_css_provider_load_from_file (provider, file, NULL);
+      gtk_style_context_add_provider_for_screen (gdk_screen_get_default (),
+                                                 GTK_STYLE_PROVIDER (self->css_provider),
+                                                 GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
     }
-
-    gtk_style_context_add_provider_for_screen (screen,
-                                               GTK_STYLE_PROVIDER (provider),
-                                               GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
-  }
-  else if (provider != NULL)
-  {
-    gtk_style_context_remove_provider_for_screen (screen,
-                                                  GTK_STYLE_PROVIDER (provider));
-    g_clear_object (&provider);
-  }
-}
-
-static void
-bjb_apply_style (void)
-{
-  GtkSettings *settings;
-
-  /* Set up a handler to load our custom css for Adwaita.
-   * See https://bugzilla.gnome.org/show_bug.cgi?id=732959
-   * for a more automatic solution that is still under discussion.
-   */
-  settings = gtk_settings_get_default ();
-  g_signal_connect (settings, "notify::gtk-theme-name", G_CALLBACK (theme_changed), NULL);
-  theme_changed (settings);
 }
 
 static void
@@ -399,7 +368,7 @@ bijiben_startup (GApplication *application)
   G_APPLICATION_CLASS (bjb_application_parent_class)->startup (application);
   self = BJB_APPLICATION (application);
 
-  bjb_apply_style ();
+  bjb_apply_style (self);
 
   gtk_application_set_accels_for_action (GTK_APPLICATION (application), "win.close", vaccels_close);
   gtk_application_set_accels_for_action (GTK_APPLICATION (application), "win.detach-window", vaccels_detach);
@@ -531,6 +500,7 @@ bijiben_finalize (GObject *object)
 {
   BjbApplication *self = BJB_APPLICATION (object);
 
+  g_clear_object (&self->css_provider);
   g_clear_object (&self->manager);
   g_clear_object (&self->settings);
   g_queue_foreach (&self->files_to_open, (GFunc) g_free, NULL);


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