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Module: Kward::DiffViewMode

Defined in:
lib/kward/diff_view_mode.rb

Overview

Normalizes and resolves the integrated diff viewer display mode.

Constant Summary collapse

AUTO = 
"auto"
UNIFIED = 
"unified"
SIDE_BY_SIDE = 
"side_by_side"
MODES = 
[AUTO, UNIFIED, SIDE_BY_SIDE].freeze
SIDE_BY_SIDE_MIN_WIDTH = 
120

Class Method Summary collapse

Class Method Details

.label(value) ⇒ Object 



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# File 'lib/kward/diff_view_mode.rb', line 18

def label(value)
  case normalize(value)
  when SIDE_BY_SIDE
    "side-by-side"
  when UNIFIED
    "unified"
  else
    "auto"
  end
end

.normalize(value) ⇒ Object 



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# File 'lib/kward/diff_view_mode.rb', line 13

def normalize(value)
  text = value.to_s.downcase.tr("-", "_")
  MODES.include?(text) ? text : AUTO
end

.resolve(value, terminal_width: nil) ⇒ Object 



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# File 'lib/kward/diff_view_mode.rb', line 29

def resolve(value, terminal_width: nil)
  mode = normalize(value)
  return mode unless mode == AUTO

  terminal_width.to_i >= SIDE_BY_SIDE_MIN_WIDTH ? SIDE_BY_SIDE : UNIFIED
end