// Manual drag caret manipulation
void DragController::placeDragCaret(const IntPoint& windowPoint)
{
mouseMovedIntoDocument(m_page->mainFrame()->documentAtPoint(windowPoint));
if (!m_documentUnderMouse)
return;
Frame* frame = m_documentUnderMouse->frame();
FrameView* frameView = frame->view();
if (!frameView)
return;
IntPoint framePoint = frameView->windowToContents(windowPoint);
m_page->dragCaretController()->setCaretPosition(frame->visiblePositionForPoint(framePoint));
}
void DragController::dragExited(DragData* dragData)
{
ASSERT(dragData);
Frame* mainFrame = m_page->mainFrame();
if (RefPtr<FrameView> v = mainFrame->view()) {
ClipboardAccessPolicy policy = (!m_documentUnderMouse || m_documentUnderMouse->securityOrigin()->isLocal()) ? ClipboardReadable : ClipboardTypesReadable;
RefPtr<Clipboard> clipboard = dragData->createClipboard(policy);
clipboard->setSourceOperation(dragData->draggingSourceOperationMask());
mainFrame->eventHandler()->cancelDragAndDrop(createMouseEvent(dragData), clipboard.get());
clipboard->setAccessPolicy(ClipboardNumb); // invalidate clipboard here for security
}
mouseMovedIntoDocument(0);
}
DragSession DragController::dragEnteredOrUpdated(DragData* dragData)
{
ASSERT(dragData);
ASSERT(m_page->mainFrame()); // It is not possible in Mac WebKit to have a Page without a mainFrame()
mouseMovedIntoDocument(m_page->mainFrame()->documentAtPoint(dragData->clientPosition()));
m_dragDestinationAction = m_client->actionMaskForDrag(dragData);
if (m_dragDestinationAction == DragDestinationActionNone) {
cancelDrag(); // FIXME: Why not call mouseMovedIntoDocument(0)?
return DragSession();
}
DragSession dragSession;
bool handledByDocument = tryDocumentDrag(dragData, m_dragDestinationAction, dragSession);
if (!handledByDocument && (m_dragDestinationAction & DragDestinationActionLoad))
dragSession.operation = operationForLoad(dragData);
return dragSession;
}
