1 files changed, 36 insertions, 0 deletions
diff --git a/chrome/browser/cocoa/info_bubble_window.mm b/chrome/browser/cocoa/info_bubble_window.mm
new file mode 100644
index 0000000..9941c62
--- /dev/null
+++ b/chrome/browser/cocoa/info_bubble_window.mm
@@ -0,0 +1,36 @@
+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#import "chrome/browser/cocoa/info_bubble_window.h"
+
+@implementation InfoBubbleWindow
+
+- (id)initWithContentRect:(NSRect)contentRect
+                styleMask:(NSUInteger)aStyle
+                  backing:(NSBackingStoreType)bufferingType
+                    defer:(BOOL)flag {
+  if ((self = [super initWithContentRect:contentRect
+                               styleMask:NSBorderlessWindowMask
+                                 backing:bufferingType
+                                   defer:flag])) {
+    [self setBackgroundColor:[NSColor clearColor]];
+    [self setExcludedFromWindowsMenu:YES];
+    [self setAlphaValue:1.0];
+    [self setOpaque:NO];
+    [self setHasShadow:YES];
+  }
+  return self;
+}
+
+// According to
+// http://www.cocoabuilder.com/archive/message/cocoa/2006/6/19/165953,
+// NSBorderlessWindowMask windows cannot become key or main. In our
+// case, however, we don't want all of that behavior. As an example,
+// our bubble could have buttons.
+
+- (BOOL)canBecomeKeyWindow {
+  return YES;
+}
+
+@end