Part 1 to rename platform/Widget to platform/FrameViewBase.

third_party/WebKit/Source/platform/Widget.cpp

-/*
- * Copyright (C) 2004, 2005, 2006, 2010 Apple Inc. All rights reserved.
- * Copyright (C) 2013 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 COMPUTER, INC. ``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 COMPUTER, INC. OR
- * 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/Widget.h"
-
-#include "wtf/Assertions.h"
-
-namespace blink {
-
-Widget::Widget()
-    : m_parent(nullptr), m_selfVisible(false), m_parentVisible(false) {}
-
-Widget::~Widget() {}
-
-DEFINE_TRACE(Widget) {
-  visitor->trace(m_parent);
-}
-
-void Widget::setParent(Widget* widget) {
-  ASSERT(!widget || !m_parent);
-  if (!widget || !widget->isVisible())
-    setParentVisible(false);
-  m_parent = widget;
-  if (widget && widget->isVisible())
-    setParentVisible(true);
-}
-
-Widget* Widget::root() const {
-  const Widget* top = this;
-  while (top->parent())
-    top = top->parent();
-  if (top->isFrameView())
-    return const_cast<Widget*>(static_cast<const Widget*>(top));
-  return 0;
-}
-
-IntRect Widget::convertFromRootFrame(const IntRect& rectInRootFrame) const {
-  if (const Widget* parentWidget = parent()) {
-    IntRect parentRect = parentWidget->convertFromRootFrame(rectInRootFrame);
-    return convertFromContainingWidget(parentRect);
-  }
-  return rectInRootFrame;
-}
-
-IntRect Widget::convertToRootFrame(const IntRect& localRect) const {
-  if (const Widget* parentWidget = parent()) {
-    IntRect parentRect = convertToContainingWidget(localRect);
-    return parentWidget->convertToRootFrame(parentRect);
-  }
-  return localRect;
-}
-
-IntPoint Widget::convertFromRootFrame(const IntPoint& pointInRootFrame) const {
-  if (const Widget* parentWidget = parent()) {
-    IntPoint parentPoint = parentWidget->convertFromRootFrame(pointInRootFrame);
-    return convertFromContainingWidget(parentPoint);
-  }
-  return pointInRootFrame;
-}
-
-FloatPoint Widget::convertFromRootFrame(
-    const FloatPoint& pointInRootFrame) const {
-  // Widgets / windows are required to be IntPoint aligned, but we may need to
-  // convert FloatPoint values within them (eg. for event co-ordinates).
-  IntPoint flooredPoint = flooredIntPoint(pointInRootFrame);
-  FloatPoint parentPoint = this->convertFromRootFrame(flooredPoint);
-  FloatSize windowFraction = pointInRootFrame - flooredPoint;
-  // Use linear interpolation handle any fractional value (eg. for iframes
-  // subject to a transform beyond just a simple translation).
-  // FIXME: Add FloatPoint variants of all co-ordinate space conversion APIs.
-  if (!windowFraction.isEmpty()) {
-    const int kFactor = 1000;
-    IntPoint parentLineEnd = this->convertFromRootFrame(
-        flooredPoint + roundedIntSize(windowFraction.scaledBy(kFactor)));
-    FloatSize parentFraction =
-        (parentLineEnd - parentPoint).scaledBy(1.0f / kFactor);
-    parentPoint.move(parentFraction);
-  }
-  return parentPoint;
-}
-
-IntPoint Widget::convertToRootFrame(const IntPoint& localPoint) const {
-  if (const Widget* parentWidget = parent()) {
-    IntPoint parentPoint = convertToContainingWidget(localPoint);
-    return parentWidget->convertToRootFrame(parentPoint);
-  }
-  return localPoint;
-}
-
-IntRect Widget::convertToContainingWidget(const IntRect& localRect) const {
-  if (const Widget* parentWidget = parent()) {
-    IntRect parentRect(localRect);
-    parentRect.setLocation(
-        parentWidget->convertChildToSelf(this, localRect.location()));
-    return parentRect;
-  }
-  return localRect;
-}
-
-IntRect Widget::convertFromContainingWidget(const IntRect& parentRect) const {
-  if (const Widget* parentWidget = parent()) {
-    IntRect localRect = parentRect;
-    localRect.setLocation(
-        parentWidget->convertSelfToChild(this, localRect.location()));
-    return localRect;
-  }
-
-  return parentRect;
-}
-
-IntPoint Widget::convertToContainingWidget(const IntPoint& localPoint) const {
-  if (const Widget* parentWidget = parent())
-    return parentWidget->convertChildToSelf(this, localPoint);
-
-  return localPoint;
-}
-
-IntPoint Widget::convertFromContainingWidget(
-    const IntPoint& parentPoint) const {
-  if (const Widget* parentWidget = parent())
-    return parentWidget->convertSelfToChild(this, parentPoint);
-
-  return parentPoint;
-}
-
-IntPoint Widget::convertChildToSelf(const Widget*,
-                                    const IntPoint& point) const {
-  return point;
-}
-
-IntPoint Widget::convertSelfToChild(const Widget*,
-                                    const IntPoint& point) const {
-  return point;
-}
-
-}  // namespace blink