main-window: Add the 'about' action

This will be needed by the next commit to display an "About" dialog via
the corresponding entry in the app menu that will be added.

This also adds the PACKAGE_URL, PACKAGE_VERSION and VCS_TAG
configuration data.

meson.build

@@ -27,6 +27,8 @@ project('call', 'c',
 )
 
 calls_id = 'sm.puri.Calls'
+calls_homepage = 'https://source.puri.sm/Librem5/calls'
+calls_version = meson.project_version()
 
 subdir('libgdbofono')
 subdir('src')

src/calls-main-window.c

@@ -27,6 +27,7 @@
 #include "calls-call-holder.h"
 #include "calls-call-selector-item.h"
 #include "calls-new-call-box.h"
+#include "config.h"
 #include "util.h"
 
 #include <glib/gi18n.h>
@@ -75,6 +76,56 @@ enum {
 static guint signals [SIGNAL_LAST_SIGNAL];
 
 
+static void
+about_action (GSimpleAction *action,
+              GVariant      *parameter,
+              gpointer       user_data)
+{
+  CallsMainWindow *self = user_data;
+
+  const gchar *version = NULL;
+
+  static const gchar *authors[] = {
+    "Adrien Plazas <kekun.plazas@laposte.net>",
+    "Bob Ham <rah@settrans.net>",
+    "Guido Günther <agx@sigxcpu.org>",
+    NULL
+  };
+
+  static const gchar *artists[] = {
+    "Tobias Bernard <tbernard@gnome.org>",
+    NULL
+  };
+
+  static const gchar *documenters[] = {
+    "Heather Ellsworth <heather.ellsworth@puri.sm>",
+    NULL
+  };
+
+  version = g_str_equal (VCS_TAG, "") ? PACKAGE_VERSION:
+                                        PACKAGE_VERSION "-" VCS_TAG;
+
+  gtk_show_about_dialog (GTK_WINDOW (self),
+                         "artists", artists,
+                         "authors", authors,
+                         "copyright", "Copyright © 2018 Purism",
+                         "documenters", documenters,
+                         "license-type", GTK_LICENSE_GPL_3_0,
+                         "logo-icon-name", APP_ID,
+                         "program-name", _("Calls"),
+                         "translator-credits", _("translator-credits"),
+                         "version", version,
+                         "website", PACKAGE_URL,
+                         NULL);
+}
+
+
+static const GActionEntry window_entries [] =
+{
+  { "about", about_action },
+};
+
+
 CallsMainWindow *
 calls_main_window_new (GtkApplication *application, CallsProvider *provider)
 {
@@ -424,6 +475,28 @@ set_property (GObject      *object,
 }
 
 
+static void
+constructed (GObject *object)
+{
+  GObjectClass *parent_class = g_type_class_peek (GTK_TYPE_APPLICATION_WINDOW);
+  CallsMainWindow *self = CALLS_MAIN_WINDOW (object);
+  GSimpleActionGroup *simple_action_group;
+
+  /* Add actions */
+  simple_action_group = g_simple_action_group_new ();
+  g_action_map_add_action_entries (G_ACTION_MAP (simple_action_group),
+                                   window_entries,
+                                   G_N_ELEMENTS (window_entries),
+                                   self);
+  gtk_widget_insert_action_group (GTK_WIDGET (self),
+                                  "win",
+                                  G_ACTION_GROUP (simple_action_group));
+  g_object_unref (simple_action_group);
+
+  parent_class->constructed (object);
+}
+
+
 static void
 calls_main_window_init (CallsMainWindow *self)
 {
@@ -463,6 +536,7 @@ calls_main_window_class_init (CallsMainWindowClass *klass)
   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
 
   object_class->set_property = set_property;
+  object_class->constructed = constructed;
   object_class->dispose = dispose;
 
   props[PROP_PROVIDER] =

src/meson.build

@@ -60,6 +60,9 @@ calls_dummy_sources = ['calls-dummy-call.c', 'calls-dummy-call.h',
 
 config_data = configuration_data()
 config_data.set_quoted('APP_ID', calls_id)
+config_data.set_quoted('PACKAGE_URL', calls_homepage)
+config_data.set_quoted('PACKAGE_VERSION', calls_version)
+config_data.set_quoted('VCS_TAG', '@VCS_TAG@')
 
 config_h_in = configure_file(
   output: 'config.h.in',