[gnome-builder] do split in idle callback

[Christian Hergert <chergert src gnome org>]

commit 54e01c8ea7cdc4d007f3630d35f957201d0ccb11
Author: Christian Hergert <christian hergert me>
Date:   Thu Mar 19 13:56:35 2015 -0700

    do split in idle callback
    
    helps when we are performing action from a gsignalaction

 data/keybindings/vim.css          |    2 +-
 src/views/gb-view-stack-actions.c |   24 +++++++++++++++++++-----
 2 files changed, 20 insertions(+), 6 deletions(-)
---
diff --git a/data/keybindings/vim.css b/data/keybindings/vim.css
index 00a12bf..abd6747 100644
--- a/data/keybindings/vim.css
+++ b/data/keybindings/vim.css
@@ -898,7 +898,7 @@
   bind "c" { "action" ("view", "close", "") };
   bind "<ctrl>c" { "action" ("view", "close", "") };
 
-  bind "s" { "action" ("view", "toggle-split", "") };
+  bind "s" { "action" ("view-stack", "split-down", "") };
 
   bind "w" { "action" ("view-grid", "focus-neighbor", "0") };
   bind "<ctrl>w" { "action" ("view-grid", "focus-neighbor", "0") };
diff --git a/src/views/gb-view-stack-actions.c b/src/views/gb-view-stack-actions.c
index 7f1cafe..57d4d85 100644
--- a/src/views/gb-view-stack-actions.c
+++ b/src/views/gb-view-stack-actions.c
@@ -118,13 +118,28 @@ gb_view_stack_actions_save_as (GSimpleAction *action,
 }
 
 static void
+do_split_down_cb (GObject      *object,
+                  GAsyncResult *result,
+                  gpointer      user_data)
+{
+  g_autoptr(GSimpleAction) action = user_data;
+  GTask *task = (GTask *)result;
+  GbView *view = (GbView *)object;
+  GVariant *param = g_task_get_task_data (task);
+  gboolean split_view = g_variant_get_boolean (param);
+
+  gb_view_set_split_view (view, split_view);
+  g_simple_action_set_state (action, param);
+}
+
+static void
 gb_view_stack_actions_split_down (GSimpleAction *action,
                                   GVariant      *param,
                                   gpointer       user_data)
 {
   GbViewStack *self = user_data;
   GtkWidget *active_view;
-  gboolean split_view;
+  g_autoptr(GTask) task = NULL;
 
   g_assert (GB_IS_VIEW_STACK (self));
 
@@ -132,10 +147,9 @@ gb_view_stack_actions_split_down (GSimpleAction *action,
   if (!GB_IS_VIEW (active_view))
     return;
 
-  split_view = g_variant_get_boolean (param);
-  gb_view_set_split_view (GB_VIEW (active_view), split_view);
-
-  g_simple_action_set_state (action, param);
+  task = g_task_new (active_view, NULL, do_split_down_cb, g_object_ref (action));
+  g_task_set_task_data (task, g_variant_ref (param), (GDestroyNotify)g_variant_unref);
+  g_task_return_boolean (task, TRUE);
 }
 
 static void