7 files changed, 38 insertions, 6 deletions
diff --git a/indra/llwindow/llopenglview-objc.h b/indra/llwindow/llopenglview-objc.h
index 1e0e47cd02..f1fab3b2c6 100644
--- a/indra/llwindow/llopenglview-objc.h
+++ b/indra/llwindow/llopenglview-objc.h
@@ -42,6 +42,7 @@
 	unsigned int mMarkedTextLength;
     bool mMarkedTextAllowed;
     bool mSimulatedRightClick;
+    bool mOldResize;
 }
 - (id) initWithSamples:(NSUInteger)samples;
 - (id) initWithSamples:(NSUInteger)samples andVsync:(BOOL)vsync;
@@ -49,6 +50,8 @@
 
 - (void)commitCurrentPreedit;
 
+- (void) setOldResize:(bool)oldresize;
+
 // rebuildContext
 // Destroys and recreates a context with the view's internal format set via setPixelFormat;
 // Use this in event of needing to rebuild a context for whatever reason, without needing to assign a new pixel format.
diff --git a/indra/llwindow/llopenglview-objc.mm b/indra/llwindow/llopenglview-objc.mm
index 7415c9d8dc..82ee5ccce4 100644
--- a/indra/llwindow/llopenglview-objc.mm
+++ b/indra/llwindow/llopenglview-objc.mm
@@ -94,8 +94,11 @@ attributedStringInfo getSegments(NSAttributedString *str)
 // Force a high quality update after live resizing
 - (void) viewDidEndLiveResize
 {
-    NSSize size = [self frame].size;
-    callResize(size.width, size.height);
+    if (mOldResize)  //Maint-3135
+    {
+        NSSize size = [self frame].size;
+        callResize(size.width, size.height);
+    }
 }
 
 - (unsigned long)getVramSize
@@ -124,10 +127,18 @@ attributedStringInfo getSegments(NSAttributedString *str)
 											   object:[self window]];
 }
 
+- (void)setOldResize:(bool)oldresize
+{
+    mOldResize = oldresize;
+}
+
 - (void)windowResized:(NSNotification *)notification;
 {
-	//NSSize size = [self frame].size;
-	//callResize(size.width, size.height);
+    if (!mOldResize)  //Maint-3288
+    {
+        NSSize size = [self frame].size;
+        callResize(size.width, size.height);
+    }
 }
 
 - (void)dealloc
@@ -204,6 +215,8 @@ attributedStringInfo getSegments(NSAttributedString *str)
 		[glContext setValues:(const GLint*)0 forParameter:NSOpenGLCPSwapInterval];
 	}
 	
+    mOldResize = false;
+    
 	return self;
 }
 
diff --git a/indra/llwindow/llwindow.h b/indra/llwindow/llwindow.h
index 78186004b8..50ea614634 100755
--- a/indra/llwindow/llwindow.h
+++ b/indra/llwindow/llwindow.h
@@ -123,7 +123,7 @@ public:
 	virtual void swapBuffers() = 0;
 	virtual void bringToFront() = 0;
 	virtual void focusClient() { };		// this may not have meaning or be required on other platforms, therefore, it's not abstract
-	
+	virtual void setOldResize(bool oldresize) { };
 	// handy coordinate space conversion routines
 	// NB: screen to window and vice verse won't work on width/height coordinate pairs,
 	// as the conversion must take into account left AND right border widths, etc.
diff --git a/indra/llwindow/llwindowmacosx-objc.h b/indra/llwindow/llwindowmacosx-objc.h
index 81b25601a9..d64525fbdd 100755
--- a/indra/llwindow/llwindowmacosx-objc.h
+++ b/indra/llwindow/llwindowmacosx-objc.h
@@ -74,6 +74,7 @@ void showNSCursor();
 void hideNSCursorTillMove(bool hide);
 void requestUserAttention();
 long showAlert(std::string title, std::string text, int type);
+void setResizeMode(bool oldresize, void* glview);
 
 NSWindowRef createNSWindow(int x, int y, int width, int height);
 
diff --git a/indra/llwindow/llwindowmacosx-objc.mm b/indra/llwindow/llwindowmacosx-objc.mm
index ace1ec0e73..1a21bf8430 100755
--- a/indra/llwindow/llwindowmacosx-objc.mm
+++ b/indra/llwindow/llwindowmacosx-objc.mm
@@ -222,6 +222,11 @@ GLViewRef createOpenGLView(NSWindowRef window, unsigned int samples, bool vsync)
 	return glview;
 }
 
+void setResizeMode(bool oldresize, void* glview)
+{
+    [(LLOpenGLView *)glview setOldResize:oldresize];
+}
+
 void glSwapBuffers(void* context)
 {
 	[(NSOpenGLContext*)context flushBuffer];
diff --git a/indra/llwindow/llwindowmacosx.h b/indra/llwindow/llwindowmacosx.h
index 6a6b39e674..825fd05c5f 100755
--- a/indra/llwindow/llwindowmacosx.h
+++ b/indra/llwindow/llwindowmacosx.h
@@ -152,7 +152,10 @@ protected:
 	BOOL	resetDisplayResolution();
 
 	BOOL	shouldPostQuit() { return mPostQuit; }
-
+    
+    //Satisfy MAINT-3135 and MAINT-3288 with a flag.
+    /*virtual */ void setOldResize(bool oldresize) {setResizeMode(oldresize, mGLView); }
+ 
 
 protected:
 	//
diff --git a/indra/newview/llappviewer.cpp b/indra/newview/llappviewer.cpp
index e3c89f1a5f..b7a8194b4d 100755
--- a/indra/newview/llappviewer.cpp
+++ b/indra/newview/llappviewer.cpp
@@ -3190,6 +3190,13 @@ bool LLAppViewer::initWindow()
 
 	LLNotificationsUI::LLNotificationManager::getInstance();
 		
+    
+#ifdef LL_DARWIN
+    //Satisfy both MAINT-3135 (OSX 10.6 and earlier) MAINT-3288 (OSX 10.7 and later)
+   if (getOSInfo().mMajorVer == 10 && getOSInfo().mMinorVer < 7)
+       gViewerWindow->getWindow()->setOldResize(true);
+#endif
+    
 	if (gSavedSettings.getBOOL("WindowMaximized"))
 	{
 		gViewerWindow->getWindow()->maximize();