HRESULT DropTargetWin::DragEnter(IDataObject* data_object,
DWORD key_state,
POINTL cursor_position,
DWORD* effect) {
if (!callback_)
return E_UNEXPECTED;
HRESULT hr;
IDropTargetHelper* drop_helper = DropHelper();
if (drop_helper) {
hr = drop_helper->DragEnter(hWnd_, data_object,
reinterpret_cast<POINT*>(&cursor_position), *effect);
}
CefRefPtr<CefDragData> drag_data = current_drag_data_;
if (!drag_data) {
drag_data = DataObjectToDragData(data_object);
}
CefMouseEvent ev = ToMouseEvent(cursor_position, key_state, hWnd_);
CefBrowserHost::DragOperationsMask mask = DropEffectToDragOperation(*effect);
mask = callback_->OnDragEnter(drag_data, ev, mask);
*effect = DragOperationToDropEffect(mask);
return S_OK;
}
HRESULT DropTargetWin::DragLeave() {
if (!callback_)
return E_UNEXPECTED;
IDropTargetHelper* drop_helper = DropHelper();
if (drop_helper)
drop_helper->DragLeave();
callback_->OnDragLeave();
return S_OK;
}
HRESULT DropTarget::DragLeave() {
// Tell the helper that we moved out of it so it can update the drag image.
IDropTargetHelper* drop_helper = DropHelper();
if (drop_helper)
drop_helper->DragLeave();
if (suspended_)
return S_OK;
OnDragLeave(current_data_object_);
current_data_object_ = NULL;
return S_OK;
}
HRESULT DropTargetWin::DragOver(DWORD key_state,
POINTL cursor_position,
DWORD* effect) {
if (!callback_)
return E_UNEXPECTED;
// Tell the helper that we moved over it so it can update the drag image.
IDropTargetHelper* drop_helper = DropHelper();
if (drop_helper)
drop_helper->DragOver(reinterpret_cast<POINT*>(&cursor_position), *effect);
CefMouseEvent ev = ToMouseEvent(cursor_position, key_state, hWnd_);
CefBrowserHost::DragOperationsMask mask = DropEffectToDragOperation(*effect);
mask = callback_->OnDragOver(ev, mask);
*effect = DragOperationToDropEffect(mask);
return S_OK;
}
HRESULT DropTarget::DragOver(DWORD key_state,
POINTL cursor_position,
DWORD* effect) {
// Tell the helper that we moved over it so it can update the drag image.
IDropTargetHelper* drop_helper = DropHelper();
if (drop_helper)
drop_helper->DragOver(reinterpret_cast<POINT*>(&cursor_position), *effect);
if (suspended_) {
*effect = DROPEFFECT_NONE;
return S_OK;
}
POINT screen_pt = { cursor_position.x, cursor_position.y };
*effect = OnDragOver(current_data_object_, key_state, screen_pt, *effect);
return S_OK;
}
HRESULT DropTarget::DragEnter(IDataObject* data_object,
DWORD key_state,
POINTL cursor_position,
DWORD* effect) {
// Tell the helper that we entered so it can update the drag image.
IDropTargetHelper* drop_helper = DropHelper();
if (drop_helper) {
drop_helper->DragEnter(GetHWND(), data_object,
reinterpret_cast<POINT*>(&cursor_position), *effect);
}
// You can't drag and drop within the same HWND.
if (suspended_) {
*effect = DROPEFFECT_NONE;
return S_OK;
}
current_data_object_ = data_object;
POINT screen_pt = { cursor_position.x, cursor_position.y };
*effect = OnDragEnter(current_data_object_, key_state, screen_pt, *effect);
return S_OK;
}