FloatPoint RotationViewportAnchor::getInnerOrigin(
const FloatSize& innerSize) const {
if (!m_anchorNode || !m_anchorNode->isConnected())
return m_visualViewportInDocument;
const LayoutRect currentNodeBounds = m_anchorNode->boundingBox();
if (m_anchorNodeBounds == currentNodeBounds)
return m_visualViewportInDocument;
RootFrameViewport* rootFrameViewport =
m_rootFrameView->getRootFrameViewport();
const LayoutRect currentNodeBoundsInLayoutViewport =
rootFrameViewport->rootContentsToLayoutViewportContents(
*m_rootFrameView.get(), currentNodeBounds);
// Compute the new anchor point relative to the node position
FloatSize anchorOffsetFromNode(currentNodeBoundsInLayoutViewport.size());
anchorOffsetFromNode.scale(m_anchorInNodeCoords.width(),
m_anchorInNodeCoords.height());
FloatPoint anchorPoint =
FloatPoint(currentNodeBoundsInLayoutViewport.location()) +
anchorOffsetFromNode;
// Compute the new origin point relative to the new anchor point
FloatSize anchorOffsetFromOrigin = innerSize;
anchorOffsetFromOrigin.scale(m_anchorInInnerViewCoords.width(),
m_anchorInInnerViewCoords.height());
return anchorPoint - anchorOffsetFromOrigin;
}
FloatPoint ViewportAnchor::getInnerOrigin(const FloatSize& innerSize) const
{
if (!m_anchorNode || !m_anchorNode->inDocument())
return m_pinchViewportInDocument;
const LayoutRect currentNodeBounds = m_anchorNode->boundingBox();
if (m_anchorNodeBounds == currentNodeBounds)
return m_pinchViewportInDocument;
// Compute the new anchor point relative to the node position
FloatSize anchorOffsetFromNode(currentNodeBounds.size());
anchorOffsetFromNode.scale(m_anchorInNodeCoords.width(), m_anchorInNodeCoords.height());
FloatPoint anchorPoint = FloatPoint(currentNodeBounds.location()) + anchorOffsetFromNode;
// Compute the new origin point relative to the new anchor point
FloatSize anchorOffsetFromOrigin = innerSize;
anchorOffsetFromOrigin.scale(m_anchorInInnerViewCoords.width(), m_anchorInInnerViewCoords.height());
return anchorPoint - anchorOffsetFromOrigin;
}
