text: // 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 UI_VIEWS_LINUX_UI_STATUS_ICON_LINUX_H_
  #define UI_VIEWS_LINUX_UI_STATUS_ICON_LINUX_H_
  
  #include "base/strings/string16.h"
  #include "ui/views/views_export.h"
  
  namespace gfx {
  class ImageSkia;
  }
  
  namespace ui {
  class MenuModel;
  }  // namespace ui
  
  namespace views {
  
  // Since liblinux_ui cannot have dependencies on any chrome browser components
  // we cannot inherit from StatusIcon. So we implement the necessary methods
  // and let a wrapper class implement the StatusIcon interface and defer the
  // callbacks to a delegate. For the same reason, do not use StatusIconMenuModel.
  class VIEWS_EXPORT StatusIconLinux {
   public:
    class Delegate {
     public:
      virtual void OnClick() = 0;
      virtual bool HasClickAction() = 0;
  
     protected:
      virtual ~Delegate();
    };
  
    StatusIconLinux();
    virtual ~StatusIconLinux();
  
    virtual void SetImage(const gfx::ImageSkia& image) = 0;
    virtual void SetPressedImage(const gfx::ImageSkia& image) = 0;
    virtual void SetToolTip(const base::string16& tool_tip) = 0;
  
    // Invoked after a call to SetContextMenu() to let the platform-specific
    // subclass update the native context menu based on the new model. The
    // subclass should destroy the existing native context menu on this call.
    virtual void UpdatePlatformContextMenu(ui::MenuModel* model) = 0;
  
    // Update all the enabled/checked states and the dynamic labels. Some status
    // icon implementations do not refresh the native menu before showing so we
    // need to manually refresh it when the menu model changes.
    virtual void RefreshPlatformContextMenu();
  
    Delegate* delegate() { return delegate_; }
    void set_delegate(Delegate* delegate) { delegate_ = delegate; }
  
   private:
    Delegate* delegate_;
  };
  
  }  // namespace views
  
  #endif  // UI_LINUX_UI_STATUS_ICON_LINUX_H_
  