Fl_Input::draw and Fl_File_Input::draw both call Fl_Input_::drawtext to do the majority of their drawing. This method has repeated checks for whether Fl::focus() == this, which control whether to draw the cursor and selection. If Fl::focus() == this were passed to drawtext as a bool focused parameter, it would be easier to extend the Fl_Input class for custom grouped widgets. The drawtext method does not modify the focus state, so it would be valid as a passed parameter.

(My own use case is an Fl_Input that pops up an Fl_Browser with autocomplete suggestions within an Fl_Menu_Window when you start typing. So far it passes events down to the Fl_Input so the popup menu can coexist with continuing to type, but the cursor and selection do not show up.)

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