number.view.tree

$mol_number $mol_view
	precision_view <= precision 1
	precision_change <= precision 1
	value_min -Infinity
	value_max +Infinity
	value? +NaN
	enabled true
	sub /
		<= String $mol_string
			- \ we don't want native number controls in mobile devices
			- \ https://stackoverflow.com/questions/3790935/can-i-hide-the-html5-number-input-s-spin-box
			type <= type \tel
			value? <=> value_string? \
			hint <= hint \ 
			enabled <= string_enabled <= enabled
			submit? <=> submit? null
		<= Dec $mol_button_minor
			event_click? <=> event_dec? null
			enabled <= dec_enabled <= enabled
			sub / <= dec_icon $mol_icon_minus
		<= Inc $mol_button_minor
			event_click? <=> event_inc? null
			enabled <= inc_enabled <= enabled
			sub / <= inc_icon $mol_icon_plus