[rAc OSX] Animate the dots in the "Loading ..." message.

chrome/browser/ui/cocoa/autofill/autofill_loading_shield_controller.h

+// Copyright 2013 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.
+
+#ifndef CHROME_BROWSER_UI_COCOA_AUTOFILL_AUTOFILL_LOADING_SHIELD_CONTROLLER_H_
+#define CHROME_BROWSER_UI_COCOA_AUTOFILL_AUTOFILL_LOADING_SHIELD_CONTROLLER_H_
+
+#import <Cocoa/Cocoa.h>
+
+#include "base/mac/scoped_nsobject.h"
+#include "base/memory/scoped_ptr.h"
+#import "chrome/browser/ui/cocoa/autofill/autofill_layout.h"
+
+class AutofillLoadingAnimationBridge;
+
+namespace autofill {
+class AutofillDialogViewDelegate;
+class LoadingAnimation;
+}
+
+// Controller for the "Loading..." shield view of the Autofill dialog.
+@interface AutofillLoadingShieldController : NSViewController<AutofillLayout> {
+ @private
+  // The main label for the shield.
+  base::scoped_nsobject<NSTextField> message_;
+
+  // The animate dots that follow the |message_|.
+  base::scoped_nsobject<NSArray> dots_;
+
+  // C++ bridge class for animating the dots.
+  scoped_ptr<AutofillLoadingAnimationBridge> animationDriver_;
+
+  autofill::AutofillDialogViewDelegate* delegate_;  // not owned, owns dialog.
+}
+
+// Designated initializer.
+- (id)initWithDelegate:(autofill::AutofillDialogViewDelegate*)delegate;
+
+// Updates the layout of the loading shield based on the |delegate_|'s state.
+- (void)update;
+
+// Updates the positions of the dots to match the current frame of the
+// |animation|.
+- (void)relayoutDotsForSteppedAnimation:
+    (const autofill::LoadingAnimation&)animation;
+
+@end
+
+#endif  // CHROME_BROWSER_UI_COCOA_AUTOFILL_AUTOFILL_LOADING_SHIELD_CONTROLLER_H_