[libgames-support] Add optional cancellable parameter to add_score

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 64e57b379716b9671571180578432f4f92f8d7ea
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Sun Sep 20 17:53:52 2015 -0500

    Add optional cancellable parameter to add_score
    
    Not sure why anyone would want to use this, but it'd be silly to not
    have it.

 games/scores/context.vala |    9 ++++-----
 tests/test-scores.vala    |    2 +-
 2 files changed, 5 insertions(+), 6 deletions(-)
---
diff --git a/games/scores/context.vala b/games/scores/context.vala
index 6ddf96c..eaad77a 100644
--- a/games/scores/context.vala
+++ b/games/scores/context.vala
@@ -152,7 +152,7 @@ public class Context : Object
     }
 
     /* Return true if a dialog was launched on attaining high score */
-    public async bool add_score (long score_value, Category category) throws Error
+    public async bool add_score (long score_value, Category category, Cancellable? cancellable = null) 
throws Error
     {
         var high_score_added = false;
        /* We need to check for game_window to be not null because thats a way to identify if add_score is 
being called by the test file.
@@ -175,11 +175,11 @@ public class Context : Object
         if (high_score_added)
             run_dialog_internal (score);
 
-        yield save_score_to_file (score, current_category);
+        yield save_score_to_file (score, current_category, cancellable);
         return high_score_added;
     }
 
-    private async void save_score_to_file (Score score, Category category) throws Error
+    private async void save_score_to_file (Score score, Category category, Cancellable? cancellable) throws 
Error
     {
         if (DirUtils.create_with_parents (user_score_dir, 0766) == -1)
         {
@@ -190,8 +190,7 @@ public class Context : Object
         var stream = file.append_to (FileCreateFlags.NONE);
         var line = @"$(score.score) $(score.time) $(score.user)\n";
 
-        // FIXME add cancellable parameter
-        yield stream.write_all_async (line.data, Priority.DEFAULT, null, null);
+        yield stream.write_all_async (line.data, Priority.DEFAULT, cancellable, null);
     }
 
     private void load_scores_from_files () throws Error
diff --git a/tests/test-scores.vala b/tests/test-scores.vala
index a2e9728..92a0ece 100644
--- a/tests/test-scores.vala
+++ b/tests/test-scores.vala
@@ -29,7 +29,7 @@ private Category category_request (string category_key)
 
 private void add_score_sync (Context context, int score, Category category) {
     var main_loop = new MainLoop (MainContext  default (), false);
-    context.add_score.begin (score, category, (object, result) => {
+    context.add_score.begin (score, category, null, (object, result) => {
         try
         {
             (void) context.add_score.end (result);