Implement confirm bubble for Mac.

chrome/browser/ui/cocoa/confirm_bubble_view.h

+// Copyright (c) 2012 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_CONFIRM_BUBBLE_VIEW_H_
+#define CHROME_BROWSER_UI_COCOA_CONFIRM_BUBBLE_VIEW_H_
+#pragma once
+
+#import <Cocoa/Cocoa.h>
+
+#import "base/mac/cocoa_protocols.h"
+#include "base/memory/scoped_nsobject.h"
+
+@class ConfirmBubbleController;
+class ConfirmBubbleModel;
+
+// A view class that implements a bubble consisting of the following items:
+// * one icon ("icon")
+// * one title text ("title")
+// * one message text ("message")
+// * one optional link ("link")
+// * two optional buttons ("ok" and "cancel")
+//
+// This bubble is convenient when we wish to ask transient, non-blocking
+// questions. Unlike a dialog, a bubble menu disappears when we click outside of
+// its window to avoid blocking user operations. A bubble is laid out as
+// follows:
+//
+//   +------------------------+
+//   | icon title             |
+//   | message                |
+//   | link                   |
+//   |          [Cancel] [OK] |
+//   +------------------------+
+//
+@interface ConfirmBubbleView : NSView<NSTextViewDelegate> {
+ @private
+  NSView* parent_;  // weak
+  ConfirmBubbleController* controller_;  // weak
+
+  // Controls used in this bubble.
+  scoped_nsobject<NSImageView> icon_;
+  scoped_nsobject<NSTextView> titleLabel_;
+  scoped_nsobject<NSTextView> messageLabel_;
+  scoped_nsobject<NSButton> okButton_;
+  scoped_nsobject<NSButton> cancelButton_;
+}
+
+// Initializes a bubble view. Since this initializer programmatically creates a
+// custom NSView (i.e. without using a nib file), this function should be called
+// from loadView: of the controller object which owns this view.
+- (id)initWithParent:(NSView*)parent
+          controller:(ConfirmBubbleController*)controller;
+
+@end
+
+// Exposed only for unit testing.
+@interface ConfirmBubbleView (ExposedForUnitTesting)
+- (void)clickOk;
+- (void)clickCancel;
+- (void)clickLink;
+@end
+
+#endif  // CHROME_BROWSER_UI_COCOA_CONFIRM_BUBBLE_VIEW_H_