/**
* Queries the medium state. Call this and then read the state field instead
* of calling GetState() on medium directly as it will properly handle the
* situation when GetState() itself fails by setting state to Inaccessible
* and memorizing the error info describing why GetState() failed.
*
* As the last step, this method calls #refresh() to refresh all precomposed
* strings.
*
* @note This method blocks for the duration of the state check. Since this
* check may take quite a while (e.g. for a medium located on a
* network share), the calling thread must not be the UI thread. You
* have been warned.
*/
void UIMedium::blockAndQueryState()
{
if (mMedium.isNull()) return;
mState = mMedium.RefreshState();
/* Save the result to distinguish between inaccessible and e.g. uninitialized objects */
mResult = COMResult (mMedium);
if (!mResult.isOk())
{
mState = KMediumState_Inaccessible;
mLastAccessError = QString::null;
}
else
mLastAccessError = mMedium.GetLastAccessError();
refresh();
}
void UIMedium::blockAndQueryState()
{
/* Ignore for NULL medium: */
if (m_medium.isNull())
return;
/* Acquire actual medium state: */
m_state = m_medium.RefreshState();
/* Save the result to distinguish between
* inaccessible and e.g. uninitialized objects: */
m_result = COMResult(m_medium);
if (!m_result.isOk())
{
m_state = KMediumState_Inaccessible;
m_strLastAccessError = QString();
}
else
m_strLastAccessError = m_medium.GetLastAccessError();
/* Refresh finally: */
refresh();
}