diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/ld-window-main.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/src/ld-window-main.c b/src/ld-window-main.c index 855bf48..4977508 100644 --- a/src/ld-window-main.c +++ b/src/ld-window-main.c @@ -100,6 +100,7 @@ static void on_action_open (GtkAction *action, LdWindowMain *self); static void on_action_save (GtkAction *action, LdWindowMain *self); static void on_action_save_as (GtkAction *action, LdWindowMain *self); static void on_action_quit (GtkAction *action, LdWindowMain *self); +static void on_action_user_guide (GtkAction *action, LdWindowMain *self); static void on_action_about (GtkAction *action, LdWindowMain *self); static void on_action_undo (GtkAction *action, LdWindowMain *self); @@ -176,6 +177,9 @@ static GtkActionEntry wm_action_entries[] = G_CALLBACK (on_action_normal_size)}, {"HelpMenu", NULL, N_("_Help"), NULL, NULL, NULL}, + {"UserGuide", GTK_STOCK_HELP, N_("_User Guide"), NULL, + N_("Open the manual"), + G_CALLBACK (on_action_user_guide)}, {"About", GTK_STOCK_ABOUT, N_("_About"), NULL, N_("Show a dialog about this application"), G_CALLBACK (on_action_about)} @@ -973,6 +977,79 @@ on_action_quit (GtkAction *action, LdWindowMain *self) gtk_widget_destroy (GTK_WIDGET (self)); } +static GFile * +user_guide_path (const gchar *language) +{ + gchar *filename, *path; + GFile *file; + + filename = g_strdup_printf ("user-guide-%s.html", language); + path = g_build_filename (PROJECT_DOC_DIR, "user-guide", filename, NULL); + g_free (filename); + file = g_file_new_for_path (path); + g_free (path); + return file; +} + +static gboolean +open_file (GFile *file, GdkScreen *screen, GError **error) +{ + GdkDisplay *display; + GAppInfo *app_info; + GdkAppLaunchContext *context; + GList link; + gboolean success; + + /* GLib 2.36.1 prevents us from using gtk_show_uri() on Windows XP. */ + if (!(app_info = g_file_query_default_handler (file, NULL, error))) + return FALSE; + + link.next = link.prev = NULL; + link.data = file; + + display = gdk_screen_get_display (screen); + context = gdk_display_get_app_launch_context (display); + gdk_app_launch_context_set_screen (context, screen); + success = g_app_info_launch (app_info, + &link, G_APP_LAUNCH_CONTEXT (context), error); + g_object_unref (context); + return success; +} + +static void +on_action_user_guide (GtkAction *action, LdWindowMain *self) +{ + const gchar *const *iter; + GFile *file; + GError *error = NULL; + + /* Look for a usable language variant, or fall back to the lingua franca. */ + for (iter = g_get_language_names (); *iter; iter++) + { + if (g_file_query_exists ((file = user_guide_path (*iter)), NULL)) + break; + g_object_unref (file); + } + if (!*iter) + file = user_guide_path ("en"); + + if (!open_file (file, gtk_window_get_screen (GTK_WINDOW (self)), &error)) + { + GtkWidget *message_dialog; + + message_dialog = gtk_message_dialog_new (GTK_WINDOW (self), + GTK_DIALOG_MODAL, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, + _("Failed to open the user guide")); + gtk_message_dialog_format_secondary_text + (GTK_MESSAGE_DIALOG (message_dialog), "%s", error->message); + g_error_free (error); + + gtk_dialog_run (GTK_DIALOG (message_dialog)); + gtk_widget_destroy (message_dialog); + } + g_object_unref (file); +} + static void on_action_about (GtkAction *action, LdWindowMain *self) { |