third_party/WebKit/Source/platform/exported/WebScrollbarThemeClientImpl.cpp

/*
 * Copyright (C) 2012 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "platform/exported/WebScrollbarThemeClientImpl.h"

#include "platform/scroll/ScrollbarTheme.h"

namespace blink {

WebScrollbarThemeClientImpl::WebScrollbarThemeClientImpl(
    WebScrollbar& scrollbar)
    : m_scrollbar(scrollbar) {
  ScrollbarTheme::theme().registerScrollbar(*this);
}

WebScrollbarThemeClientImpl::~WebScrollbarThemeClientImpl() {
  ScrollbarTheme::theme().unregisterScrollbar(*this);
}

int WebScrollbarThemeClientImpl::x() const {
  return location().x();
}

int WebScrollbarThemeClientImpl::y() const {
  return location().y();
}

int WebScrollbarThemeClientImpl::width() const {
  return size().width();
}

int WebScrollbarThemeClientImpl::height() const {
  return size().height();
}

IntSize WebScrollbarThemeClientImpl::size() const {
  return m_scrollbar.size();
}

IntPoint WebScrollbarThemeClientImpl::location() const {
  return m_scrollbar.location();
}

Widget* WebScrollbarThemeClientImpl::parent() const {
  // Unused by Chromium scrollbar themes.
  ASSERT_NOT_REACHED();
  return 0;
}

Widget* WebScrollbarThemeClientImpl::root() const {
  // Unused by Chromium scrollbar themes.
  ASSERT_NOT_REACHED();
  return 0;
}

void WebScrollbarThemeClientImpl::setFrameRect(const IntRect&) {
  // Unused by Chromium scrollbar themes.
  ASSERT_NOT_REACHED();
}

IntRect WebScrollbarThemeClientImpl::frameRect() const {
  return IntRect(location(), size());
}

void WebScrollbarThemeClientImpl::invalidate() {
  // Unused by Chromium scrollbar themes.
  ASSERT_NOT_REACHED();
}

void WebScrollbarThemeClientImpl::invalidateRect(const IntRect&) {
  // Unused by Chromium scrollbar themes.
  ASSERT_NOT_REACHED();
}

ScrollbarOverlayColorTheme
WebScrollbarThemeClientImpl::getScrollbarOverlayColorTheme() const {
  return static_cast<ScrollbarOverlayColorTheme>(
      m_scrollbar.scrollbarOverlayColorTheme());
}

void WebScrollbarThemeClientImpl::getTickmarks(
    Vector<IntRect>& tickmarks) const {
  WebVector<WebRect> webTickmarks;
  m_scrollbar.getTickmarks(webTickmarks);
  tickmarks.resize(webTickmarks.size());
  for (size_t i = 0; i < webTickmarks.size(); ++i)
    tickmarks[i] = webTickmarks[i];
}

bool WebScrollbarThemeClientImpl::isScrollableAreaActive() const {
  return m_scrollbar.isScrollableAreaActive();
}

IntPoint WebScrollbarThemeClientImpl::convertFromRootFrame(
    const IntPoint& pointInRootFrame) const {
  // Unused by Chromium scrollbar themes.
  ASSERT_NOT_REACHED();
  return pointInRootFrame;
}

bool WebScrollbarThemeClientImpl::isCustomScrollbar() const {
  return m_scrollbar.isCustomScrollbar();
}

ScrollbarOrientation WebScrollbarThemeClientImpl::orientation() const {
  return static_cast<ScrollbarOrientation>(m_scrollbar.orientation());
}

bool WebScrollbarThemeClientImpl::isLeftSideVerticalScrollbar() const {
  return m_scrollbar.isLeftSideVerticalScrollbar();
}

int WebScrollbarThemeClientImpl::value() const {
  return m_scrollbar.value();
}

float WebScrollbarThemeClientImpl::currentPos() const {
  return value();
}

int WebScrollbarThemeClientImpl::visibleSize() const {
  return totalSize() - maximum();
}

int WebScrollbarThemeClientImpl::totalSize() const {
  return m_scrollbar.totalSize();
}

int WebScrollbarThemeClientImpl::maximum() const {
  return m_scrollbar.maximum();
}

ScrollbarControlSize WebScrollbarThemeClientImpl::controlSize() const {
  return static_cast<ScrollbarControlSize>(m_scrollbar.controlSize());
}

ScrollbarPart WebScrollbarThemeClientImpl::pressedPart() const {
  return static_cast<ScrollbarPart>(m_scrollbar.pressedPart());
}

ScrollbarPart WebScrollbarThemeClientImpl::hoveredPart() const {
  return static_cast<ScrollbarPart>(m_scrollbar.hoveredPart());
}

void WebScrollbarThemeClientImpl::styleChanged() {
  ASSERT_NOT_REACHED();
}

void WebScrollbarThemeClientImpl::setScrollbarsHidden(bool hidden) {
  ASSERT_NOT_REACHED();
}

bool WebScrollbarThemeClientImpl::enabled() const {
  return m_scrollbar.enabled();
}

void WebScrollbarThemeClientImpl::setEnabled(bool) {
  ASSERT_NOT_REACHED();
}

bool WebScrollbarThemeClientImpl::isOverlayScrollbar() const {
  return m_scrollbar.isOverlay();
}

float WebScrollbarThemeClientImpl::elasticOverscroll() const {
  return m_scrollbar.elasticOverscroll();
}

void WebScrollbarThemeClientImpl::setElasticOverscroll(
    float elasticOverscroll) {
  return m_scrollbar.setElasticOverscroll(elasticOverscroll);
}

}  // namespace blink