winemac: Keep floating windows in a higher window level than non-floating full-screen windows.

[Ken Thomases]

When windows aren't full-screen, non-floating windows go in NSNormalWindowLevel
and floating ones go in NSFloatingWindowLevel, which is higher.  However, a
non-floating full-screen window will go into a level higher than either of
those.  The prior logic of the -adjustWindowLevels: method would keep the
floating windows at a window level at least that high.  They should actually
be in a strictly higher level.

Signed-off-by: Ken Thomases <ken at codeweavers.com>
---
 dlls/winemac.drv/cocoa_app.m | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/dlls/winemac.drv/cocoa_app.m b/dlls/winemac.drv/cocoa_app.m
index 0eaea57..09c95d0 100644
--- a/dlls/winemac.drv/cocoa_app.m
+++ b/dlls/winemac.drv/cocoa_app.m
@@ -520,6 +520,7 @@ - (void) adjustWindowLevels:(BOOL)active
         NSUInteger nextFloatingIndex = 0;
         __block NSInteger maxLevel = NSIntegerMin;
         __block NSInteger maxNonfloatingLevel = NSNormalWindowLevel;
+        __block NSInteger minFloatingLevel = NSFloatingWindowLevel;
         __block WineWindow* prev = nil;
         WineWindow* window;
 
@@ -556,6 +557,14 @@ - (void) adjustWindowLevels:(BOOL)active
             NSInteger origLevel = [window level];
             NSInteger newLevel = [window minimumLevelForActive:active];
 
+            if (window.floating)
+            {
+                if (minFloatingLevel <= maxNonfloatingLevel)
+                    minFloatingLevel = maxNonfloatingLevel + 1;
+                if (newLevel < minFloatingLevel)
+                    newLevel = minFloatingLevel;
+            }
+
             if (newLevel < maxLevel)
                 newLevel = maxLevel;
             else
-- 
2.10.2