views/controls/scrollbar/scroll_bar.cc

// Copyright (c) 2011 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.

#include "views/controls/scrollbar/scroll_bar.h"

#include "ui/base/accessibility/accessible_view_state.h"

namespace views {

ScrollBar::~ScrollBar() {
}

void ScrollBar::GetAccessibleState(ui::AccessibleViewState* state) {
  state->role = ui::AccessibilityTypes::ROLE_SCROLLBAR;
}

bool ScrollBar::IsHorizontal() const {
  return is_horiz_;
}

void ScrollBar::Update(int viewport_size, int content_size, int current_pos) {
  max_pos_ = std::max(0, content_size - viewport_size);
}

int ScrollBar::GetMaxPosition() const {
  return max_pos_;
}

int ScrollBar::GetMinPosition() const {
  return 0;
}

ScrollBar::ScrollBar(bool is_horiz)
    : is_horiz_(is_horiz),
      controller_(NULL),
      max_pos_(0) {
}

}  // namespace views