Class: TTY::Draft

Inherits:
Object
  • Object
show all
Defined in:
lib/tty-draft.rb

Constant Summary collapse

VERSION = 
'0.1.1'

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Draft

Returns a new instance of Draft.



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# File 'lib/tty-draft.rb', line 31

def initialize
  @chars = [[]]
  @row = 0
  @col = 0
end

Instance Attribute Details

#done ⇒ Object (readonly)

Returns the value of attribute done.



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# File 'lib/tty-draft.rb', line 29

def done
  @done
end

Class Method Details

.gets ⇒ Object 



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# File 'lib/tty-draft.rb', line 9

def gets
  draft = new
  reader = Reader.new
  reader.subscribe(draft)
  live = Live.new

  loop do
    reader.read_char
    if draft.done
      live.update('')
      reader.unsubscribe(draft)
      print live.show
      return draft.edited
    end
    live.update(draft.editing)
    print live.hide
  end
end

Instance Method Details

#edited ⇒ Object 



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# File 'lib/tty-draft.rb', line 80

def edited
  to_string(@chars)
end

#editing ⇒ Object 



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# File 'lib/tty-draft.rb', line 84

def editing
  copy = @chars.dup
  copy[@row] = current_row.dup
  copy[@row][@col] = "\e[7m#{copy[@row][@col] || ' '}\e[27m"
  to_string(copy)
end

#keypress(event) ⇒ Object 



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# File 'lib/tty-draft.rb', line 37

def keypress(event)
  @done = false
  case event.key.name
  when :ctrl_d, :ctrl_z
    @done = true
  when :backspace
    if @col > 0
      @col -= 1
      return delete_char
    end
    if @row > 0
      @col = @chars[@row - 1].size
      @chars[@row - 1] += delete_row
      return @row -= 1
    end
  when :delete
    return delete_char if @col < current_row.size
    @chars[@row] = current_row + ((@row += 1) && delete_row.tap{@row -= 1})
  when :left
    return @col -= 1 if @col > 0
    return if @row <= 0
    @row -= 1
    @col = current_row.size
  when :right
    return @col += 1 if @col < current_row.size
    return if (@row + 1) >= @chars.size
    @row += 1
    @col = 0
  when :up
    @row -= 1 if @row > 0
    fix_col
  when :down
    @row += 1 if (@row + 1) < @chars.size
    fix_col
  when :return
    insert_row
  else
    return insert_row if event.value == "\n"
    current_row.insert(@col, event.value)
    @col += 1
  end
end