merge from viewer-development.

1 files changed, 18 insertions, 0 deletions

diff --git a/indra/llui/lltoggleablemenu.cpp b/indra/llui/lltoggleablemenu.cpp
index 0eb2dc1387..d29260750f 100644
--- a/indra/llui/lltoggleablemenu.cpp
+++ b/indra/llui/lltoggleablemenu.cpp
@@ -35,10 +35,22 @@ static LLDefaultChildRegistry::Register<LLToggleableMenu> r("toggleable_menu");
 LLToggleableMenu::LLToggleableMenu(const LLToggleableMenu::Params& p)
 :	LLMenuGL(p),
 	mButtonRect(),
+	mVisibilityChangeSignal(NULL),
 	mClosedByButtonClick(false)
 {
 }
 
+LLToggleableMenu::~LLToggleableMenu()
+{
+	delete mVisibilityChangeSignal;
+}
+
+boost::signals2::connection LLToggleableMenu::setVisibilityChangeCallback(const commit_signal_t::slot_type& cb)
+{
+	if (!mVisibilityChangeSignal) mVisibilityChangeSignal = new commit_signal_t();
+	return mVisibilityChangeSignal->connect(cb);
+}
+
 // virtual
 void LLToggleableMenu::handleVisibilityChange (BOOL curVisibilityIn)
 {
@@ -49,6 +61,12 @@ void LLToggleableMenu::handleVisibilityChange (BOOL curVisibilityIn)
 	{
 		mClosedByButtonClick = true;
 	}
+
+	if (mVisibilityChangeSignal)
+	{
+		(*mVisibilityChangeSignal)(this,
+				LLSD().with("visibility", curVisibilityIn).with("closed_by_button_click", mClosedByButtonClick));
+	}
 }
 
 void LLToggleableMenu::setButtonRect(const LLRect& rect, LLView* current_view)