Add new event handler for parent.
Change method of handler registration.
Revert "Add new event handler for parent."

This reverts commit 1433306027c0d92351502ce2cd95f64a787f864e.
Revert "Use Body class for Parent data holder."

This reverts commit 919e6779f628e4bf2efef7fe2fc238f9d6b059d8.
Revert "Add select for parent body."

This reverts commit 8a6d2f1c3b0e0b73e61a254fbf26ce249e73b98e.
Revert "Fix comments."

This reverts commit 2b912195b1abcdb44818bc2105b177aef4bee701.
Revert "Add night view for parent."

This reverts commit f3c358b78a651c4f3d408cd4ecd2928e4eb90803.