Class: FilePicker

Inherits:
Object
  • Object
show all
Defined in:
lib/terminal-file-picker/file_picker.rb

Overview

Responsible for keeping the state of the interactive file picker. Also responds to user input to modify the state and redraw file picker to reflect new state.

Instance Method Summary collapse

Constructor Details

#initialize(start_dir_path, options = {}) ⇒ FilePicker 



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# File 'lib/terminal-file-picker/file_picker.rb', line 11

def initialize(start_dir_path, options = {})
  @model = FileBrowserModel.new(start_dir_path, options)
  @view = FileBrowserView.new(options)
  @reader = TTY::Reader.new(interrupt: :exit)
  @reader.subscribe(self)
  @cursor = TTY::Cursor
  @user_have_picked = false

  absolute_start_path = File.absolute_path(start_dir_path)
  change_directory(absolute_start_path)
end

Instance Method Details

#keydown(_event) ⇒ Object 



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# File 'lib/terminal-file-picker/file_picker.rb', line 35

def keydown(_event)
  @model.selected += 1 unless selected_at_bottom?
  if selected_below_page?
    @model.page += 1
    print(@cursor.clear_screen_down)
  end
  redraw(true)
end

#keypress(event) ⇒ Object 



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# File 'lib/terminal-file-picker/file_picker.rb', line 53

def keypress(event)
  case event.value
  when "\r"
    selected = @model.selected_absolute_path

    if File.directory?(selected)
      change_directory(selected)
      print(@cursor.clear_screen_down)
      # Cache keeps a rendering of current directory.
      # Going to a new directory, so needs to refresh
      # the cache.
      redraw(false)
    else
      @user_have_picked = true
    end
  end
end

#keyup(_event) ⇒ Object 



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# File 'lib/terminal-file-picker/file_picker.rb', line 44

def keyup(_event)
  @model.selected -= 1 unless selected_at_top?
  if selected_above_page?
    @model.page -= 1
    print(@cursor.clear_screen_down)
  end
  redraw(true)
end

#pick_file ⇒ Object 



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# File 'lib/terminal-file-picker/file_picker.rb', line 23

def pick_file
  @user_have_picked = false
  redraw(false)

  @cursor.invisible do
    @reader.read_keypress until @user_have_picked
  end

  print(@cursor.clear_screen_down)
  @model.selected_absolute_path
end