text: // Copyright (c) 2010 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 PPAPI_CPP_DEV_SCROLLBAR_DEV_H_
  #define PPAPI_CPP_DEV_SCROLLBAR_DEV_H_
  
  #include "ppapi/c/dev/ppb_scrollbar_dev.h"
  #include "ppapi/cpp/dev/widget_dev.h"
  
  namespace pp {
  
  class Instance;
  
  // This class allows a plugin to use the browser's scrollbar widget.
  class Scrollbar_Dev : public Widget_Dev {
   public:
    // Creates an is_null() Scrollbar object.
    Scrollbar_Dev() {}
  
    explicit Scrollbar_Dev(PP_Resource resource);
    Scrollbar_Dev(const Instance& instance, bool vertical);
    Scrollbar_Dev(const Scrollbar_Dev& other);
  
    Scrollbar_Dev& operator=(const Scrollbar_Dev& other);
    void swap(Scrollbar_Dev& other);
  
    // PPB_Scrollbar methods:
    static uint32_t GetThickness();
    uint32_t GetValue();
    void SetValue(uint32_t value);
    void SetDocumentSize(uint32_t size);
    void SetTickMarks(const Rect* tick_marks, uint32_t count);
    void ScrollBy(PP_ScrollBy_Dev unit, int32_t multiplier);
  };
  
  }  // namespace pp
  
  #endif  // PPAPI_CPP_DEV_SCROLLBAR_DEV_H_
  