[gspell] language-choosers: accept NULL language to pick the default language

[Sébastien Wilmet <swilmet src gnome org>]

commit 5398f9bcfd2e268f09f6a407bae2c9b55cd38742
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Thu Jan 14 14:10:51 2016 +0100

    language-choosers: accept NULL language to pick the default language

 gspell/gspell-language-chooser-button.c |   10 ++++++++--
 gspell/gspell-language-chooser-dialog.c |   10 ++++++++--
 gspell/gspell-language-chooser.c        |    5 +++--
 3 files changed, 19 insertions(+), 6 deletions(-)
---
diff --git a/gspell/gspell-language-chooser-button.c b/gspell/gspell-language-chooser-button.c
index bc7b4bd..76b222f 100644
--- a/gspell/gspell-language-chooser-button.c
+++ b/gspell/gspell-language-chooser-button.c
@@ -1,7 +1,7 @@
 /*
  * This file is part of gspell, a spell-checking library.
  *
- * Copyright 2015 - Sébastien Wilmet <swilmet gnome org>
+ * Copyright 2015, 2016 - Sébastien Wilmet <swilmet gnome org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -99,6 +99,11 @@ gspell_language_chooser_button_set_language (GspellLanguageChooser *chooser,
        button = GSPELL_LANGUAGE_CHOOSER_BUTTON (chooser);
        priv = gspell_language_chooser_button_get_instance_private (button);
 
+       if (language == NULL)
+       {
+               language = gspell_language_get_default ();
+       }
+
        if (priv->language != language)
        {
                priv->language = language;
@@ -270,7 +275,8 @@ gspell_language_chooser_button_init (GspellLanguageChooserButton *button)
 
 /**
  * gspell_language_chooser_button_new:
- * @current_language: a #GspellLanguage.
+ * @current_language: (nullable): a #GspellLanguage, or %NULL to pick the
+ *   default language.
  *
  * Returns: a new #GspellLanguageChooserButton widget.
  */
diff --git a/gspell/gspell-language-chooser-dialog.c b/gspell/gspell-language-chooser-dialog.c
index 8b86c79..6a36844 100644
--- a/gspell/gspell-language-chooser-dialog.c
+++ b/gspell/gspell-language-chooser-dialog.c
@@ -2,7 +2,7 @@
  * This file is part of gspell, a spell-checking library.
  *
  * Copyright 2002 - Paolo Maggi
- * Copyright 2015 - Sébastien Wilmet
+ * Copyright 2015, 2016 - Sébastien Wilmet
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -118,6 +118,11 @@ gspell_language_chooser_dialog_set_language (GspellLanguageChooser *chooser,
        dialog = GSPELL_LANGUAGE_CHOOSER_DIALOG (chooser);
        priv = gspell_language_chooser_dialog_get_instance_private (dialog);
 
+       if (language == NULL)
+       {
+               language = gspell_language_get_default ();
+       }
+
        selection = gtk_tree_view_get_selection (priv->treeview);
 
        if (language == NULL)
@@ -389,7 +394,8 @@ gspell_language_chooser_dialog_init (GspellLanguageChooserDialog *dialog)
 /**
  * gspell_language_chooser_dialog_new:
  * @parent: transient parent of the dialog.
- * @current_language: the #GspellLanguage to select initially.
+ * @current_language: (nullable): the #GspellLanguage to select initially, or
+ *   %NULL to pick the default language.
  * @flags: #GtkDialogFlags
  *
  * Returns: a new #GspellLanguageChooserDialog widget.
diff --git a/gspell/gspell-language-chooser.c b/gspell/gspell-language-chooser.c
index b09dbd5..eeaf3ee 100644
--- a/gspell/gspell-language-chooser.c
+++ b/gspell/gspell-language-chooser.c
@@ -1,7 +1,7 @@
 /*
  * This file is part of gspell, a spell-checking library.
  *
- * Copyright 2015 - Sébastien Wilmet <swilmet gnome org>
+ * Copyright 2015, 2016 - Sébastien Wilmet <swilmet gnome org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -65,7 +65,8 @@ gspell_language_chooser_get_language (GspellLanguageChooser *chooser)
 /**
  * gspell_language_chooser_set_language:
  * @chooser: a #GspellLanguageChooser.
- * @language: a #GspellLanguage.
+ * @language: (nullable): a #GspellLanguage or %NULL to pick the default
+ *   language.
  *
  * Sets the selected language.
  */