module CLI::UI::Terminal

Constants

DEFAULT_HEIGHT
DEFAULT_WIDTH

Public Class Methods

height() click to toggle source

Returns the width of the terminal, if possible Otherwise, will return DEFAULT_HEIGHT

# File lib/cli/ui/terminal.rb, line 20
def self.height
  winsize[0]
end
setup_winsize_trap() click to toggle source
# File lib/cli/ui/terminal.rb, line 39
def self.setup_winsize_trap
  @winsize_trap ||= Signal.trap('WINCH') do
    @winsize = nil
  end
end
width() click to toggle source

Returns the width of the terminal, if possible Otherwise will return DEFAULT_WIDTH

# File lib/cli/ui/terminal.rb, line 13
def self.width
  winsize[1]
end
winsize() click to toggle source
# File lib/cli/ui/terminal.rb, line 24
def self.winsize
  @winsize ||= begin
    winsize = IO.console.winsize
    setup_winsize_trap

    if winsize.any?(&:zero?)
      [DEFAULT_HEIGHT, DEFAULT_WIDTH]
    else
      winsize
    end
  rescue
    [DEFAULT_HEIGHT, DEFAULT_WIDTH]
  end
end