chrome_frame/infobars/infobar_manager.h

   1 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_FRAME_INFOBARS_INFOBAR_MANAGER_H_
   6 #define CHROME_FRAME_INFOBARS_INFOBAR_MANAGER_H_
   7
   8 #include <windows.h>
   9
  10 class InfobarContent;
  11
  12 enum InfobarType {
  13   FIRST_INFOBAR_TYPE = 0,
  14   TOP_INFOBAR = 0,          // Infobar at the top.
  15   BOTTOM_INFOBAR = 1,       // Infobar at the bottom.
  16   END_OF_INFOBAR_TYPE = 2
  17 };
  18
  19 // Creates and manages infobars at the top or bottom of an IE content window.
  20 // Instances must only be retrieved and used within the UI thread of the IE
  21 // content window.
  22 class InfobarManager {
  23  public:
  24   // Returns an InfobarManager for the specified IE tab window. Caller does not
  25   // own the pointer (resources will be freed when the window is destroyed).
  26   //
  27   // The pointer may be invalidated by further processing of window events, and
  28   // as such should be immediately discarded after use.
  29   //
  30   // Returns NULL in case of failure.
  31   static InfobarManager* Get(HWND tab_window);
  32
  33   virtual ~InfobarManager();
  34
  35   // Shows the supplied content in an infobar of the specified type.
  36   // Normally, InfobarContent::InstallInFrame will be called with an interface
  37   // the content may use to interact with the Infobar facility.
  38   //
  39   // InfobarContent is deleted when the Infobar facility is finished with the
  40   // content (either through failure or when successfully hidden).
  41   virtual bool Show(InfobarContent* content, InfobarType type) = 0;
  42
  43   // Hides the infobar of the specified type.
  44   virtual void Hide(InfobarType type) = 0;
  45
  46   // Hides all infobars.
  47   virtual void HideAll() = 0;
  48 };  // class InfobarManager
  49
  50 #endif  // CHROME_FRAME_INFOBARS_INFOBAR_MANAGER_H_