EXP-1804 FIX -- Drag and drop operations can be blocked by modal dialogs

* Added support for marketplace notifications that don't display the dialog
  until the next frame, leaving room for the drag and drop operation to
  properly complete before the notification shows up and interferes.

1 files changed, 57 insertions, 0 deletions

diff --git a/indra/newview/llmarketplacenotifications.h b/indra/newview/llmarketplacenotifications.h
new file mode 100644
index 0000000000..83a4e163c7
--- /dev/null
+++ b/indra/newview/llmarketplacenotifications.h
@@ -0,0 +1,57 @@
+/** 
+ * @file llmarketplacenotifications.h
+ * @brief Handler for notifications related to marketplace file I/O
+ * class definition
+ *
+ * $LicenseInfo:firstyear=2001&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2011, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_LLMARKETPLACENOTIFICATIONS_H
+#define LL_LLMARKETPLACENOTIFICATIONS_H
+
+
+#include <llsd.h>
+#include <boost/function.hpp>
+
+
+//
+// This is a set of helper functions to handle a unique notification with multiple
+// payloads, helpful when dragging and dropping items to the merchant outbox that
+// trigger notifications that can potentially interfere with the current drag and
+// drop operation.
+//
+// Notification payloads are cached locally when initiated, the notification itself
+// is triggered on the following frame during the call to "update" and then the
+// response is triggered once per payload.
+//
+
+namespace LLMarketplaceInventoryNotifications
+{
+	void update();
+
+	typedef boost::function<void (const LLSD&)> NoCopyCallbackFunction;
+	
+	void addNoCopyNotification(const LLSD& payload, const NoCopyCallbackFunction& cb);
+};
+
+
+#endif // LL_LLMARKETPLACENOTIFICATIONS_H