chrome/browser/ui/translate/translate_bubble_view_state_transition.h

   1 // Copyright 2013 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_BROWSER_UI_TRANSLATE_TRANSLATE_BUBBLE_VIEW_STATE_TRANSITION_H_
   6 #define CHROME_BROWSER_UI_TRANSLATE_TRANSLATE_BUBBLE_VIEW_STATE_TRANSITION_H_
   7
   8 #include "base/basictypes.h"
   9 #include "chrome/browser/ui/translate/translate_bubble_model.h"
  10
  11 // The class which manages the transition of the view state of the Translate
  12 // bubble.
  13 class TranslateBubbleViewStateTransition {
  14  public:
  15   explicit TranslateBubbleViewStateTransition(
  16       TranslateBubbleModel::ViewState view_state);
  17
  18   TranslateBubbleModel::ViewState view_state() const { return view_state_; }
  19
  20   // Transitions the view state.
  21   void SetViewState(TranslateBubbleModel::ViewState view_state);
  22
  23   // Goes back from the 'Advanced' view state.
  24   void GoBackFromAdvanced();
  25
  26  private:
  27   // The current view type.
  28   TranslateBubbleModel::ViewState view_state_;
  29
  30   // The view type. When the current view type is not 'Advanced' view, this is
  31   // equivalent to |view_state_|. Otherwise, this is the previous view type
  32   // before the user opens the 'Advanced' view. This is used to navigate when
  33   // pressing 'Cancel' button on the 'Advanced' view.
  34   TranslateBubbleModel::ViewState view_state_before_advanced_view_;
  35
  36   DISALLOW_COPY_AND_ASSIGN(TranslateBubbleViewStateTransition);
  37 };
  38
  39 #endif  // CHROME_BROWSER_UI_TRANSLATE_TRANSLATE_BUBBLE_VIEW_STATE_TRANSITION_H_