[gnome-calendar/calendar-editor] source-dialog: implement color selection

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit ed293a81e7f6d950563ea46c30845e6175795f05
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Mon Feb 9 15:56:28 2015 -0200

    source-dialog: implement color selection

 data/ui/source-dialog.ui |    1 +
 src/gcal-source-dialog.c |   19 +++++++++++++++++++
 2 files changed, 20 insertions(+), 0 deletions(-)
---
diff --git a/data/ui/source-dialog.ui b/data/ui/source-dialog.ui
index bea1bed..9a8a43e 100644
--- a/data/ui/source-dialog.ui
+++ b/data/ui/source-dialog.ui
@@ -111,6 +111,7 @@
                     <property name="visible">True</property>
                     <property name="can_focus">True</property>
                     <property name="receives_default">True</property>
+                    <signal name="color-set" handler="color_set" object="GcalSourceDialog" swapped="no"/>
                   </object>
                   <packing>
                     <property name="left_attach">2</property>
diff --git a/src/gcal-source-dialog.c b/src/gcal-source-dialog.c
index f9b2cbe..982eebc 100644
--- a/src/gcal-source-dialog.c
+++ b/src/gcal-source-dialog.c
@@ -52,6 +52,9 @@ struct _GcalSourceDialog
 static void       action_widget_activated               (GtkWidget            *widget,
                                                          gpointer              user_data);
 
+static void       color_set                             (GtkColorButton       *button,
+                                                         gpointer              user_data);
+
 static gboolean   description_label_link_activated      (GtkWidget            *widget,
                                                          gchar                *uri,
                                                          gpointer              user_data);
@@ -91,6 +94,21 @@ action_widget_activated (GtkWidget *widget,
   gtk_dialog_response (GTK_DIALOG (user_data), response);
 }
 
+static void
+color_set (GtkColorButton *button,
+           gpointer        user_data)
+{
+  GcalSourceDialogPrivate *priv = GCAL_SOURCE_DIALOG (user_data)->priv;
+  ESourceSelectable *extension;
+  GdkRGBA color;
+
+  gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (button), &color);
+
+  extension = E_SOURCE_SELECTABLE (e_source_get_extension (priv->source, E_SOURCE_EXTENSION_CALENDAR));
+
+  e_source_selectable_set_color (extension, gdk_rgba_to_string (&color));
+}
+
 /**
  * description_label_link_activated:
  *
@@ -220,6 +238,7 @@ gcal_source_dialog_class_init (GcalSourceDialogClass *klass)
   gtk_widget_class_bind_template_child_private (widget_class, GcalSourceDialog, stack);
 
   gtk_widget_class_bind_template_callback (widget_class, action_widget_activated);
+  gtk_widget_class_bind_template_callback (widget_class, color_set);
   gtk_widget_class_bind_template_callback (widget_class, description_label_link_activated);
   gtk_widget_class_bind_template_callback (widget_class, name_entry_text_changed);
 }