calendar/Header renders a calendar header The calendar header consists of 3 buttons where the text can be set and a previous and a next button. In the normal calendar the first button contains the displayed day, the second button the displayed month and the third button the displayed year. <b>Note:</b> This is used inside the calendar. Not for standalone usage 1.28.0 sap.ui.core/Control Text of the first button (normally day) Additional text of the first button (normally day) aria-label of the first button (normally day) If set, the first button will be displayed <b>Note:</b> The default is set to false to be compatible to older versions Text of the second button (normally month) Additional text of the second button (normally month) aria-label of the second button (normally month) If set, the second button will be displayed Text of the third button (normally year) Additional text of the third button (normally year) aria-label of the third button (normally year) If set, the third button will be displayed Enables the previous button Enables the Next button Previous button pressed Next button pressed First button pressed (normally day) Second button pressed (normally month) Third button pressed (normally year)