Assistant.updateButtonsState

Forces @assistant to recompute the buttons state.

GTK automatically takes care of this in most situations, e.g. when the user goes to a different page, or when the visibility or completeness of a page changes.

One situation where it can be necessary to call this function is when changing a value on the current page affects the future page flow of the assistant.

class Assistant
void
updateButtonsState
()

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