[gedit] Include Adwaita theming

[Matthias Clasen <matthiasc src gnome org>]

commit cec4be8ebabe2bddf901b5c2d7ebe64c71c0b8a6
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Jun 13 12:02:07 2014 -0400

    Include Adwaita theming
    
    With Adwaita moving into GTK+, the application-specific pieces
    of the theme have to live with the applications themselves.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=731624

 gedit/gedit-app.c         |   54 ++++++++++++++
 gedit/gedit.adwaita.css   |  178 +++++++++++++++++++++++++++++++++++++++++++++
 gedit/gedit.gresource.xml |    1 +
 3 files changed, 233 insertions(+), 0 deletions(-)
---
diff --git a/gedit/gedit-app.c b/gedit/gedit-app.c
index 2af769b..1e3c45c 100644
--- a/gedit/gedit-app.c
+++ b/gedit/gedit-app.c
@@ -439,6 +439,58 @@ get_builder_object_ref (GtkBuilder  *builder,
 }
 
 static void
+theme_changed (GtkSettings *settings,
+              GParamSpec  *pspec,
+              gpointer     data)
+{
+       static GtkCssProvider *provider;
+
+       if (pspec == NULL || g_str_equal (pspec->name, "gtk-theme-name"))
+       {
+               gchar *theme;
+               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)
+                       {
+                               GFile *file;
+
+                               provider = gtk_css_provider_new ();
+                               file = g_file_new_for_uri 
("resource:///org/gnome/gedit/ui/gedit.adwaita.css");
+                               gtk_css_provider_load_from_file (provider, file, NULL);
+                               g_object_unref (file);
+                       }
+
+                       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);
+               }
+
+               g_free (theme);
+       }
+}
+
+static void
+setup_theme_extensions (void)
+{
+       GtkSettings *settings;
+
+       settings = gtk_settings_get_default ();
+       g_signal_connect (settings, "notify", G_CALLBACK (theme_changed), NULL);
+       theme_changed (settings, NULL, NULL);
+}
+
+static void
 gedit_app_startup (GApplication *application)
 {
        GeditApp *app = GEDIT_APP (application);
@@ -475,6 +527,8 @@ gedit_app_startup (GApplication *application)
        gtk_icon_theme_append_search_path (gtk_icon_theme_get_default (), icon_dir);
        g_free (icon_dir);
 
+        setup_theme_extensions ();
+
 #ifndef ENABLE_GVFS_METADATA
        gedit_metadata_manager_init ();
 #endif
diff --git a/gedit/gedit.adwaita.css b/gedit/gedit.adwaita.css
new file mode 100644
index 0000000..3bd981a
--- /dev/null
+++ b/gedit/gedit.adwaita.css
@@ -0,0 +1,178 @@
+ define-color gedit_not_found_bg rgb (237, 54, 54);
+ define-color gedit_not_found_fg white;
+
+GeditWindow .pane-separator,
+GeditWindow .pane-separator:hover {
+    border-width: 0 1px 1px 1px;
+    border-style: solid;
+    border-color: @borders;
+    background-color: shade(@theme_bg_color, 0.95);
+    color: @borders;
+}
+
+.gedit-document-panel {
+    background-color: @sidebar_bg;
+}
+
+.gedit-document-panel-group-row,
+.gedit-document-panel-group-row:hover {
+    border-top: 1px solid shade(@sidebar_bg, 0.90);
+    background-color: @sidebar_bg;
+}
+
+.gedit-document-panel-document-row:hover {
+    background-color: shade(@sidebar_bg, 0.95);
+}
+
+.gedit-document-panel-document-row:selected,
+.gedit-document-panel-document-row:selected:hover {
+    background-color: @theme_selected_bg_color;
+}
+
+/* sidepane close button styling (copied from the gtk tab close button) */
+.gedit-document-panel .list-row .button {
+    color: transparent;
+    border-image: none;
+    background-image: none;
+    background-color: transparent;
+    border-radius: 3px;
+    border-style: solid;
+    border-color: transparent;
+    border-width: 1px;
+    padding: 1px;
+    icon-shadow: none;
+}
+
+.gedit-document-panel .prelight-row .button  {
+    color: mix(@theme_fg_color, @sidebar_bg, 0.6);
+    border-color: alpha(black, 0.1);
+    transition: all 200ms ease-in;
+}
+
+.gedit-document-panel .list-row .button:hover,
+.gedit-document-panel .prelight-row .button:hover {
+    color: @theme_fg_color;
+    border-color: alpha(black, 0.1);
+    transition: all 200ms ease-in;
+}
+
+.gedit-document-panel .prelight-row .button:active {
+    color:  @button_active_text;
+    background-color: alpha(black, 0.08);
+    box-shadow: inset 0 1px alpha(black, 0.05);
+    icon-shadow: 0 1px @button_active_text_shadow;
+
+    border-color: alpha(black, 0.27)
+                  alpha(black, 0.13)
+                  alpha(black, 0.13)
+                  alpha(black, 0.13);
+}
+
+.gedit-document-panel .prelight-row .button:backdrop {
+    color: mix(@theme_unfocused_fg_color, @theme_unfocused_base_color, 0.7);
+    icon-shadow: none;
+}
+
+.gedit-document-panel .prelight-row .button:backdrop:hover {
+    color: @theme_unfocused_fg_color;
+    transition: all 200ms ease-out;
+}
+
+.gedit-document-panel-dragged-row {
+    border: 1px solid @borders;
+    background-color: shade(@sidebar_bg, 0.90);
+    color: @theme_fg_color;
+}
+
+.gedit-document-panel-placeholder-row {
+    border: none;
+    background-color: mix(@sidebar_bg, @theme_selected_bg_color, 0.20);
+    transition: all 200ms ease-in;
+}
+
+GeditStatusbar {
+    border-top: 1px solid @borders;
+}
+
+GeditStatusbar GeditSmallButton,
+GeditStatusMenuButton {
+    text-shadow: none;
+}
+
+GeditStatusbar GeditSmallButton.button:backdrop,
+GeditStatusbar GeditSmallButton.button:backdrop:hover,
+GeditStatusbar GeditSmallButton.button,
+GeditStatusbar GeditSmallButton.button:hover,
+GeditStatusbar GeditSmallButton.button:active,
+GeditStatusbar GeditSmallButton.button:active:hover,
+GeditStatusMenuButton.button:backdrop,
+GeditStatusMenuButton.button:backdrop:hover,
+GeditStatusMenuButton.button,
+GeditStatusMenuButton.button:hover,
+GeditStatusMenuButton.button:active,
+GeditStatusMenuButton.button:active:hover {
+    border-image: none;
+    border-style: solid;
+    border-width: 0 1px;
+    border-radius: 0;
+    padding: 1px 8px 2px 4px;
+}
+
+GeditStatusbar GeditSmallButton.button:hover,
+GeditStatusbar GeditSmallButton.button:active,
+GeditStatusbar GeditSmallButton.button:active:hover,
+GeditStatusMenuButton.button:hover,
+GeditStatusMenuButton.button:active,
+GeditStatusMenuButton.button:active:hover {
+    border-color: @borders;
+}
+
+GeditStatusbar GeditSmallButton.button:active,
+GeditStatusMenuButton.button:active {
+    background-image: linear-gradient(to bottom,
+                                      @borders,
+                                      shade(@theme_bg_color, 0.95));
+    background-color: transparent;
+    color: @theme_selected_fg_color;
+    text-shadow: 0 1px @button_text_shadow;
+}
+
+GeditStatusbar GeditSmallButton.button:backdrop,
+GeditStatusbar GeditSmallButton.button:backdrop:hover,
+GeditStatusMenuButton.button:backdrop,
+GeditStatusMenuButton.button:backdrop:hover {
+    border-color: @unfocused_borders;
+}
+
+GeditViewFrame .gedit-search-slider {
+    background-color: @theme_base_color;
+    padding: 6px;
+    border-color: shade (@notebook_tab_gradient_b, 0.80);
+    border-radius: 0 0 3px 3px;
+    border-width: 0 1px 1px 1px;
+    border-style: solid;
+}
+
+GeditViewFrame .gedit-search-slider .not-found {
+    color: @gedit_not_found_fg;
+    background-image: none;
+    background-color: @gedit_not_found_bg;
+}
+
+GeditViewFrame .gedit-search-slider .not-found:selected {
+    background-color: @theme_selected_bg_color;
+    color: @theme_selected_fg_color;
+}
+
+GeditFileBrowserWidget .toolbar {
+    padding: 3px;
+    border-bottom: 1px solid @borders;
+    box-shadow: inset 0 3px alpha(black, 0.03), inset 0 2px alpha(black, 0.03), inset 0 1px alpha(black, 
0.03);
+    background-color: shade(@theme_bg_color, 0.95);
+}
+
+.gedit-search-entry-occurrences-tag {
+    color: shade (@theme_unfocused_fg_color, 0.8);
+    margin: 2px;
+    padding: 2px;
+}
diff --git a/gedit/gedit.gresource.xml b/gedit/gedit.gresource.xml
index 7ac35b0..ce6fc2c 100644
--- a/gedit/gedit.gresource.xml
+++ b/gedit/gedit.gresource.xml
@@ -16,5 +16,6 @@
     <file preprocess="xml-stripblanks">gedit-window.ui</file>
     <file preprocess="xml-stripblanks">gedit-statusbar.ui</file>
     <file>gedit-style.css</file>
+    <file>gedit.adwaita.css</file>
   </gresource>
 </gresources>