SL-11216: Introduce LLVersionInfo::getReleaseNotes() method.

The default string returned by getReleaseNotes() is empty. It must be set by
posting the relevant release-notes URL string to a new LLEventMailDrop
instance named "relnotes".

Add unique_ptr<LLEventMailDrop> and unique_ptr<LLStoreListener<std::string>>
to LLVersionInfo -- using unique_ptr to leave those classes opaque to
header-file consumers. Introduce an out-of-line destructor to handle the
unique_ptr<opaque> idiom.

Initialize the LLEventMailDrop with the desired name; initialize the
LLStoreListener with that LLEventMailDrop and the data member returned by
getReleaseNotes().

1 files changed, 20 insertions, 1 deletions

diff --git a/indra/newview/llversioninfo.h b/indra/newview/llversioninfo.h
index 7857468697..02ff0c094a 100644
--- a/indra/newview/llversioninfo.h
+++ b/indra/newview/llversioninfo.h
@@ -28,9 +28,14 @@
 #ifndef LL_LLVERSIONINFO_H
 #define LL_LLVERSIONINFO_H
 
-#include <string>
 #include "stdtypes.h"
 #include "llsingleton.h"
+#include <string>
+#include <memory>
+
+class LLEventMailDrop;
+template <typename T>
+class LLStoreListener;
 
 ///
 /// This API provides version information for the viewer.  This
@@ -44,6 +49,8 @@ class LLVersionInfo: public LLSingleton<LLVersionInfo>
 	LLSINGLETON(LLVersionInfo);
 	void initSingleton();
 public:
+	~LLVersionInfo();
+
 	/// return the major version number as an integer
 	S32 getMajor();
 
@@ -87,6 +94,10 @@ public:
     } ViewerMaturity;
     ViewerMaturity getViewerMaturity();
 
+	/// get the release-notes URL, once it becomes available -- until then,
+	/// return empty string
+	std::string getReleaseNotes();
+
 private:
 	std::string version;
 	std::string short_version;
@@ -98,6 +109,14 @@ private:
 	// This will get reset too.
 	std::string mVersionChannel;
 	std::string build_configuration;
+	std::string mReleaseNotes;
+	// Store unique_ptrs to the next couple things so we don't have to explain
+	// to every consumer of this header file all the details of each.
+	// mPump is the LLEventMailDrop on which we listen for SLVersionChecker to
+	// post the release-notes URL from the Viewer Version Manager.
+	std::unique_ptr<LLEventMailDrop> mPump;
+	// mStore is an adapter that stores the release-notes URL in mReleaseNotes.
+	std::unique_ptr<LLStoreListener<std::string>> mStore;
 };
 
 #endif