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Contents
require "observer"
#Presents login screen data
class LoginPresenter
attr_accessor :user_name
attr_accessor :password
attr_accessor :status
def initialize
@user_name = ""
@password = ""
@status = "Logged Out"
end
def status=(status)
@status = status
#TODO add feature to bind dependent properties to master property (2017-07-25 nested data binding)
notify_observers("logged_in")
notify_observers("logged_out")
end
def logged_in
self.status == "Logged In"
end
def logged_out
!self.logged_in
end
def login
self.status = "Logged In"
end
def logout
self.user_name = ""
self.password = ""
self.status = "Logged Out"
end
end
#Login screen
class Login
include Glimmer
def launch
presenter = LoginPresenter.new
@shell = shell {
text "Login"
composite {
grid_layout 2, false #two columns with differing widths
label { text "Username:" } # goes in column 1
text { # goes in column 2
text bind(presenter, :user_name)
enabled bind(presenter, :logged_out)
}
label { text "Password:" }
text(:password, :border) {
text bind(presenter, :password)
enabled bind(presenter, :logged_out)
}
label { text "Status:" }
label { text bind(presenter, :status) }
button {
text "Login"
enabled bind(presenter, :logged_out)
on_widget_selected { presenter.login }
}
button {
text "Logout"
enabled bind(presenter, :logged_in)
on_widget_selected { presenter.logout }
}
}
}
@shell.open
end
end
Login.new.launch
Version data entries
16 entries across 16 versions & 1 rubygems