Add a TabController class to manage a TabView (with corresponding xib). Rewri...

chrome/browser/cocoa/tab_controller.mm

+// 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/tab_controller.h"
+
+@implementation TabController
+
+@synthesize image = image_;
+@synthesize loading = loading_;
+@synthesize target = target_;
+@synthesize action = action_;
+
++ (float)minTabWidth { return 64.0; }
++ (float)maxTabWidth { return 160.0; }
+
+- (TabView*)tabView {
+  return static_cast<TabView*>([self view]);
+}
+
+- (id)init {
+  self = [super initWithNibName:@"TabView" bundle:nil];
+  if (self != nil) {
+    [self setImage:[NSImage imageNamed:@"nav"]];
+  }
+  return self;
+}
+
+// Called when the tab's nib is done loading and all outlets are hooked up.
+- (void)awakeFromNib {
+  [[self view] addSubview:backgroundButton_
+               positioned:NSWindowBelow
+               relativeTo:nil];
+  // TODO(alcor): figure out what to do with the close button v. cell. Note
+  // there is no close button in the nib at the moment.
+  [closeButton_ setWantsLayer:YES];
+  [closeButton_ setAlphaValue:0.2];
+  [self setSelected:NO];
+}
+
+- (void)setSelected:(BOOL)selected {
+  selected_ = selected;

[TVL, 2009/03/12 15:56:42]

see if the state changed to avoid updates if it's the current value?

[pink (ping after 24hrs), 2009/03/12 16:04:48]

Done.

+  [backgroundButton_ setState:selected];
+  [[self view] setNeedsDisplay:YES];
+}
+
+- (BOOL)selected {
+  return selected_;
+}
+
+@end