Improve behavior of menubar switching when windows are activated.

Specifically, if a non-wx (e.g. internal Cocoa) window becomes key but a
wx window remains main, be sure to use the wx window's menubar rather
than swapping it out for the menubar we show when no wx window
is active.  Fixes Leopard issue.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@49241 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/src/cocoa/mbarman.mm b/src/cocoa/mbarman.mm
index 35e158a1bd72cdf64e4636f9fa5fb74c87d90307..7870e6dca35016dfbb5640eb8de52e7c15da0a3c 100644 (file)
--- a/src/cocoa/mbarman.mm
+++ b/src/cocoa/mbarman.mm
@@ -132,6 +132,12 @@ wxMenuBarManager::wxMenuBarManager()
     [[NSNotificationCenter defaultCenter] addObserver:m_observer
             selector:@selector(windowDidBecomeKey:)
             name:NSWindowDidBecomeKeyNotification object:nil];
+
+    // HACK: Reuse the same selector and eventual C++ method and make it
+    // check for whether the notification is to become key or main.
+    [[NSNotificationCenter defaultCenter] addObserver:m_observer
+            selector:@selector(windowDidBecomeKey:)
+            name:NSWindowDidBecomeMainNotification object:nil];
 #if 0
     [[NSNotificationCenter defaultCenter] addObserver:m_observer
             selector:@selector(windowDidResignKey:)
@@ -271,6 +277,78 @@ void wxMenuBarManager::WindowDidBecomeKey(NSNotification *notification)
 {
     /* NOTE: m_currentNSWindow might be destroyed but we only ever use it
        to look it up in the hash table.  Do not send messages to it. */
+
+    /*  Update m_currentNSWindow only if we really should.  For instance,
+        if a non-wx window is becoming key but a wx window remains main
+        then don't change out the menubar.  However, if a non-wx window
+        (whether the same window or not) is main, then switch to the
+        generic menubar so the wx window that last installed a menubar
+        doesn't get menu events it doesn't expect.
+
+        If a wx window is becoming main then check to see if the key
+        window is a wx window and if so do nothing because that
+        is what would have been done before.
+
+        If a non-wx window is becoming main and 
+     */
+    NSString *notificationName = [notification name];
+    if(NULL == notificationName)
+        return;
+    else if([NSWindowDidBecomeKeyNotification isEqualTo:notificationName])
+    {   // This is the only one that was handled in 2.8 as shipped
+        // Generally the key window can change without the main window changing.
+        // The user can do this simply by clicking on something in a palette window
+        // that needs to become key.
+        NSWindow *newKeyWindow = [notification object];
+        wxCocoaNSWindow *theWxKeyWindow = wxCocoaNSWindow::GetFromCocoa(newKeyWindow);
+        if(theWxKeyWindow != NULL)
+        {   // If the new key window is a wx window, handle it as before
+            // even if it has not actually changed.
+            m_currentNSWindow = newKeyWindow;
+        }
+        else
+        {   // If the new key window is not wx then check the main window.
+            NSWindow *mainWindow = [[NSApplication sharedApplication] mainWindow];
+            if(m_currentNSWindow == mainWindow)
+                // Don't reset if the menubar doesn't need to change.
+                return;
+            else
+                // This is strange because theoretically we should have picked this up
+                // already in the main window notification but it's possible that
+                // we simply haven't gotten it yet and will about as soon as we return.
+                // We already know that the key window isn't wx so fall back to this
+                // one and let the code go ahead and set the wx menubar if it is
+                // a wx window and set the generic one if it isn't.
+                m_currentNSWindow = mainWindow;
+        }
+    }
+    else if([NSWindowDidBecomeMainNotification isEqualTo:notificationName])
+    {   // Handling this is new
+        // Generally the main window cannot change without the key window changing
+        // because if the user clicks on a window that can become main then the
+        // window will also become key.
+        // However, it's possible that when it becomes main it automatically makes
+        // some palette the key window.
+        NSWindow *newMainWindow = [notification object];
+        // If we already know about the window, bail.
+        if(newMainWindow == m_currentNSWindow)
+            return;
+        else
+        {
+            NSWindow *keyWindow = [[NSApplication sharedApplication] keyWindow];
+            if(keyWindow == m_currentNSWindow)
+                // if we already know about the key window, bail
+                return;
+            else
+            {   // As above, sort of strange.  Neither one is current.  Prefer key over main.
+                wxCocoaNSWindow *theWxMainWindow = wxCocoaNSWindow::GetFromCocoa(keyWindow);
+                if(theWxMainWindow != NULL)
+                    m_currentNSWindow = keyWindow;
+                else
+                    m_currentNSWindow = newMainWindow;
+            }
+        }
+    }
     m_currentNSWindow = [notification object];
     wxCocoaNSWindow *win = wxCocoaNSWindow::GetFromCocoa(m_currentNSWindow);
     if(win)