infobars: Componentize ConfirmInfoBarDelegate.

chrome/browser/infobars/confirm_infobar_delegate.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_INFOBARS_CONFIRM_INFOBAR_DELEGATE_H_
-#define CHROME_BROWSER_INFOBARS_CONFIRM_INFOBAR_DELEGATE_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "base/strings/string16.h"
-#include "components/infobars/core/infobar_delegate.h"
-
-namespace infobars {
-class InfoBar;
-}
-
-// An interface derived from InfoBarDelegate implemented by objects wishing to
-// control a ConfirmInfoBar.
-class ConfirmInfoBarDelegate : public infobars::InfoBarDelegate {
- public:
-  enum InfoBarButton {
-    BUTTON_NONE   = 0,
-    BUTTON_OK     = 1 << 0,
-    BUTTON_CANCEL = 1 << 1,
-  };
-
-  virtual ~ConfirmInfoBarDelegate();
-
-  // Returns the InfoBar type to be displayed for the InfoBar.
-  virtual InfoBarAutomationType GetInfoBarAutomationType() const OVERRIDE;
-
-  // Returns the message string to be displayed for the InfoBar.
-  virtual base::string16 GetMessageText() const = 0;
-
-  // Returns the buttons to be shown for this InfoBar.
-  virtual int GetButtons() const;
-
-  // Returns the label for the specified button. The default implementation
-  // returns "OK" for the OK button and "Cancel" for the Cancel button.
-  virtual base::string16 GetButtonLabel(InfoBarButton button) const;
-
-  // Returns whether or not the OK button will trigger a UAC elevation prompt on
-  // Windows.
-  virtual bool OKButtonTriggersUACPrompt() const;
-
-  // Called when the OK button is pressed. If this function returns true, the
-  // infobar is then immediately closed. Subclasses MUST NOT return true if in
-  // handling this call something triggers the infobar to begin closing.
-  virtual bool Accept();
-
-  // Called when the Cancel button is pressed. If this function returns true,
-  // the infobar is then immediately closed. Subclasses MUST NOT return true if
-  // in handling this call something triggers the infobar to begin closing.
-  virtual bool Cancel();
-
-  // Returns the text of the link to be displayed, if any. Otherwise returns
-  // and empty string.
-  virtual base::string16 GetLinkText() const;
-
-  // Called when the Link (if any) is clicked. The |disposition| specifies how
-  // the resulting document should be loaded (based on the event flags present
-  // when the link was clicked). If this function returns true, the infobar is
-  // then immediately closed. Subclasses MUST NOT return true if in handling
-  // this call something triggers the infobar to begin closing.
-  virtual bool LinkClicked(WindowOpenDisposition disposition);
-
- protected:
-  ConfirmInfoBarDelegate();
-
-  // Returns a confirm infobar that owns |delegate|.
-  static scoped_ptr<infobars::InfoBar> CreateInfoBar(
-      scoped_ptr<ConfirmInfoBarDelegate> delegate);
-
-  virtual bool ShouldExpireInternal(
-      const NavigationDetails& details) const OVERRIDE;
-
- private:
-  // InfoBarDelegate:
-  virtual bool EqualsDelegate(
-      infobars::InfoBarDelegate* delegate) const OVERRIDE;
-  virtual ConfirmInfoBarDelegate* AsConfirmInfoBarDelegate() OVERRIDE;
-
-  DISALLOW_COPY_AND_ASSIGN(ConfirmInfoBarDelegate);
-};
-
-#endif  // CHROME_BROWSER_INFOBARS_CONFIRM_INFOBAR_DELEGATE_H_