void ViewNavigationDelegate::MoveMouseCursorToNode(WebCore::Node* node, bool scrollIfNecessary)
{
if (node)
{
WebCore::HTMLElement* element = (WebCore::HTMLElement*)node;
WebCore::IntRect rect = element->getRect();
WebCore::IntPoint frameOffset;
WebCore::IntPoint scrollOffset;
WebCore::FrameView* pFrameView = element->document()->view(); //Can be NULL
if(pFrameView)
{
//Use move here instead of setX/setY as it results in 1 call instead of two and takes advantage that ctor sets x,y to 0.
frameOffset.move(pFrameView->x(), pFrameView->y());
scrollOffset.move(pFrameView->scrollOffset().width(), pFrameView->scrollOffset().height());
}
int width = mView->GetSize().mWidth;
int height = mView->GetSize().mHeight;
// This will be true if this function is called from anywhere except JumpToNearestElement(). This enables us to not lose the cursor during
// arbitrary jumping of elements from either code or webpage using the Navigation APIs.
if(scrollIfNecessary)
{
int cursorX, cursorY;
mView->GetCursorPosition(cursorX, cursorY);
WebCore::IntPoint targetCursorLocation(frameOffset.x()+rect.x()+rect.width()/2 - scrollOffset.x(), frameOffset.y()+rect.y()+rect.height()/2 - scrollOffset.y());
// Added 1 in all the line delta below resulting in a better visual behavior when the element happens to be at the edge.
if(targetCursorLocation.y() > height)
{
float numLinesDelta = (((targetCursorLocation.y() - cursorY)/WebCore::Scrollbar::pixelsPerLineStep())+1);
ScrollOnJump(true, -120, numLinesDelta);
}
if(targetCursorLocation.y()< 0.0f)
{
float numLinesDelta = (((cursorY - targetCursorLocation.y())/WebCore::Scrollbar::pixelsPerLineStep())+1);
ScrollOnJump(true, 120, numLinesDelta);
}
if(targetCursorLocation.x() > width)
{
float numLinesDelta = (((targetCursorLocation.x() - cursorX)/WebCore::Scrollbar::pixelsPerLineStep())+1);
ScrollOnJump(false, -120, numLinesDelta);
}
if(targetCursorLocation.x()< 0.0f)
{
float numLinesDelta = (((cursorX - targetCursorLocation.x())/WebCore::Scrollbar::pixelsPerLineStep())+1);
ScrollOnJump(false, 120, numLinesDelta);
}
// Read the scroll offset again as it may have changed.
if(pFrameView)
{
scrollOffset.setX(pFrameView->scrollOffset().width());
scrollOffset.setY(pFrameView->scrollOffset().height());
}
}
mBestNodeFrame = element->document()->frame(); //Can be NULL
mBestNodeX = frameOffset.x() + rect.x();
mBestNodeY = frameOffset.y() + rect.y();
mBestNodeWidth = rect.width();
mBestNodeHeight = rect.height();
int lastX, lastY;
mView->GetCursorPosition(lastX, lastY);
int newX = mBestNodeX + rect.width()/2 - scrollOffset.x();
int newY = mBestNodeY + rect.height()/2 - scrollOffset.y();
EA::WebKit::MouseMoveEvent moveEvent;
memset( &moveEvent, 0, sizeof(moveEvent) );
const int cursorInset = 5;// Make cursor stay inside 5 pixels from boundaries. No known issues but added this as a safety measure so that we do not lose cursor ever.
moveEvent.mX = Clamp( cursorInset, newX, width - cursorInset );
moveEvent.mY = Clamp( cursorInset, newY, height - cursorInset );
mView->OnMouseMoveEvent( moveEvent );
if(EAWebKitClient* const pClient = GetEAWebKitClient())
{
CursorMovedInfo cmInfo(mView, mView->GetUserData(), moveEvent.mX, moveEvent.mY);
pClient->CursorMoved(cmInfo);
}
UpdateCachedHints(node);
}
}
