DragOperation DragController::dragEnteredOrUpdated(DragData* dragData)
{
ASSERT(dragData);
IntPoint windowPoint = dragData->clientPosition();
Document* newDraggingDoc = 0;
if (Frame* frame = m_page->mainFrame())
newDraggingDoc = frame->documentAtPoint(windowPoint);
if (m_document != newDraggingDoc) {
if (m_document)
cancelDrag();
m_document = newDraggingDoc;
}
m_dragDestinationAction = m_client->actionMaskForDrag(dragData);
DragOperation operation = DragOperationNone;
if (m_dragDestinationAction == DragDestinationActionNone)
cancelDrag();
else {
operation = tryDocumentDrag(dragData, m_dragDestinationAction);
if (operation == DragOperationNone && (m_dragDestinationAction & DragDestinationActionLoad))
return operationForLoad(dragData);
}
return operation;
}
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;
}
