[recipes] shopping: Make the title a property

[Matthias Clasen <matthiasc src gnome org>]

commit 384d9c568d05cc4c2f27abb52fe0570f174be02a
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Jan 16 08:33:25 2017 -0500

    shopping: Make the title a property
    
    Setting the window title from here does not really work, since
    we end up overwriting the title of unrelated pages. Instead, we
    will listen for property changes from the window side.

 src/gr-shopping-page.c |   76 ++++++++++++++++++++++++++++++++++++++++-------
 1 files changed, 64 insertions(+), 12 deletions(-)
---
diff --git a/src/gr-shopping-page.c b/src/gr-shopping-page.c
index c1caae6..f57d061 100644
--- a/src/gr-shopping-page.c
+++ b/src/gr-shopping-page.c
@@ -51,10 +51,18 @@ struct _GrShoppingPage
         GHashTable *ingredients;
 
         GrShoppingListPrinter *printer;
+
+        char *title;
 };
 
 G_DEFINE_TYPE (GrShoppingPage, gr_shopping_page, GTK_TYPE_BOX)
 
+enum {
+        PROP_0,
+        PROP_TITLE,
+        N_PROPS
+};
+
 static void connect_store_signals (GrShoppingPage *page);
 
 static void
@@ -67,6 +75,8 @@ shopping_page_finalize (GObject *object)
         g_clear_pointer (&self->ingredients, g_hash_table_unref);
         g_clear_object (&self->printer);
 
+        g_free (self->title);
+
         G_OBJECT_CLASS (gr_shopping_page_parent_class)->finalize (object);
 }
 
@@ -101,8 +111,6 @@ recount_recipes (GrShoppingPage *page)
         GList *children, *l;
         int count;
         g_autofree char *tmp = NULL;
-        g_autofree char *tmp2 = NULL;
-        GtkWidget *window;
 
         children = gtk_container_get_children (GTK_CONTAINER (page->recipe_list));
 
@@ -117,17 +125,16 @@ recount_recipes (GrShoppingPage *page)
         }
         g_list_free (children);
 
-        window = gtk_widget_get_ancestor (GTK_WIDGET (page), GTK_TYPE_APPLICATION_WINDOW);
-
-        tmp = g_strdup_printf (ngettext ("Cook it later (%d recipe)",
-                                         "Cook it later (%d recipes)", page->recipe_count),
-                               page->recipe_count);
-        gtk_window_set_title (GTK_WINDOW (window), tmp);
+        g_free (page->title);
+        page->title = g_strdup_printf (ngettext ("Cook it later (%d recipe)",
+                                                 "Cook it later (%d recipes)", page->recipe_count),
+                                       page->recipe_count);
+        g_object_notify (G_OBJECT (page), "title");
 
-        tmp2 = g_strdup_printf (ngettext ("%d Recipe marked for preparation",
-                                          "%d Recipes marked for preparation", count),
-                                count);
-        gtk_label_set_label (GTK_LABEL (page->recipe_count_label), tmp2);
+        tmp = g_strdup_printf (ngettext ("%d Recipe marked for preparation",
+                                         "%d Recipes marked for preparation", count),
+                               count);
+        gtk_label_set_label (GTK_LABEL (page->recipe_count_label), tmp);
 }
 
 static void
@@ -559,12 +566,57 @@ gr_shopping_page_init (GrShoppingPage *page)
 }
 
 static void
+shopping_page_get_property (GObject    *object,
+                            guint       prop_id,
+                            GValue     *value,
+                            GParamSpec *pspec)
+{
+        GrShoppingPage *self = GR_SHOPPING_PAGE (object);
+
+        switch (prop_id) {
+        case PROP_TITLE:
+                g_value_set_string (value, self->title);
+                break;
+
+        default:
+                G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+        }
+}
+
+static void
+shopping_page_set_property (GObject      *object,
+                            guint         prop_id,
+                            const GValue *value,
+                            GParamSpec   *pspec)
+{
+        GrShoppingPage *self = GR_SHOPPING_PAGE (object);
+
+        switch (prop_id) {
+        case PROP_TITLE:
+                g_free (self->title);
+                self->title = g_value_dup_string (value);
+                break;
+
+        default:
+                G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+        }
+}
+
+static void
 gr_shopping_page_class_init (GrShoppingPageClass *klass)
 {
         GObjectClass *object_class = G_OBJECT_CLASS (klass);
         GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+        GParamSpec *pspec;
 
         object_class->finalize = shopping_page_finalize;
+        object_class->get_property = shopping_page_get_property;
+        object_class->set_property = shopping_page_set_property;
+
+        pspec = g_param_spec_string ("title", NULL, NULL,
+                                     NULL,
+                                     G_PARAM_READWRITE);
+        g_object_class_install_property (object_class, PROP_TITLE, pspec);
 
         gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/Recipes/gr-shopping-page.ui");