Dialog

A modal dialog with optional secondary and primary buttons. Only one dialog can be open at a time. The buttons can be placed on the left or the right side. Each button has a callback. The callback is either a Callback which always closes the dialog or a ResultCallback with a boolean return value. A value of {@code true} indicates that the dialog should be closed whereas {@code false} keeps the dialog open. You can add as many buttons as you like, but only one of them should be the primary button.

There are convenience methods to add primary and secondary buttons which come with pre-defined placements. If you want to define the placement by yourself use negative numbers to place the buttons on the left side and positive numbers for the right side. On each side the buttons are ordered according to the placement.