Method canCopy

src/kdiff3.cpp:556–561

Please do not add logic for MergeResultWindow or DiffTextWindow here they have their own handlers. This function is only concerned with qt objects that don't support canCopy. allowCopy() or's the results from all canCopy signals sent via boost. returns true if a QLineEdit or QLineEdit is in focus because Qt handles these internally. */

    returns true if a QLineEdit or QLineEdit is in focus because Qt handles these internally.
*/
bool KDiff3App::canCopy()
{
    QWidget* focus = focusWidget();

    return (qobject_cast<QLineEdit*>(focus) != nullptr || qobject_cast<QTextEdit*>(focus) != nullptr);
}
/*
    Make sure Edit menu tracks focus correctly.
*/