Module: Canis::ListBindings

Extended by:
ListBindings
Included in:
ListBindings
Defined in:
lib/canis/core/include/listbindings.rb

Overview

bindings for multi-row widgets such as listbox, table,

Instance Method Summary collapse

Instance Method Details

#bindings ⇒ Object 



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# File 'lib/canis/core/include/listbindings.rb', line 16

def bindings
  $log.debug "YYYY:  INSIDE LISTBINDING FOR #{self.class} "
  bind_key(Ncurses::KEY_LEFT, 'cursor backward'){ cursor_backward } if respond_to? :cursor_backward
  bind_key(Ncurses::KEY_RIGHT, 'cursor_forward'){ cursor_forward } if respond_to? :cursor_forward
  # very irritating when user pressed up arrow, commented off 2012-01-4  can be made optional
  bind_key(Ncurses::KEY_UP, 'previous row'){ ret = up;  } #get_window.ungetch(KEY_BTAB) if ret == :NO_PREVIOUS_ROW }
  # the next was irritating if user wanted to add a row ! 2011-10-10 
  #bind_key(Ncurses::KEY_DOWN){ ret = down ; get_window.ungetch(KEY_TAB) if ret == :NO_NEXT_ROW }
  bind_key(Ncurses::KEY_DOWN, 'next row'){ ret = down ; }
  bind_key(279, 'goto_start'){ goto_start } 
  bind_key(277, 'goto end'){ goto_end } 
  bind_key(338, 'scroll forward'){ scroll_forward() } 
  bind_key(339, 'scroll backward'){ scroll_backward() } 

  # this allows us to set on a component basis, or global basis
  # Motivation was mainly for textarea which needs emacs keys
  kmap = $key_map_type || :both
  if kmap == :emacs || kmap == :both
    bind_key(?\C-v, 'scroll forward'){ scroll_forward }
    # clashes with M-v for toggle one key selection, i guess you can set it as you like
    bind_key(?\M-v, 'scroll backward'){ scroll_backward }
    bind_key(?\C-s, 'ask search'){ ask_search() }
    bind_key(?\C-n, 'next row'){ down() }
    bind_key(?\C-p, 'previous row'){ down() }
    bind_key(?\M->, 'goto bottom'){ goto_end() }
    bind_key(?\M-<, 'goto top'){ goto_start() }
    bind_key([?\C-x, ?>], :scroll_right)
    bind_key([?\C-x, ?<], :scroll_left)
  end
  if kmap == :vim || kmap == :both
    # some of these will not have effect in textarea such as j k, gg and G, search
    bind_key(?j, 'next row'){ down() }
    bind_key(?k, 'previous row'){ up() }
    bind_key(?w, 'forward_word'){ forward_word }
    bind_key(?b, 'backward_word'){ backward_word }
    bind_key(?W, 'forward WORD'){ forward_regex :WORD }
    bind_key(?B, 'backward WORD'){ backward_regex :WORD }
    bind_key(?\C-d, 'scroll forward'){ scroll_forward() }
    bind_key(32, 'scroll forward'){ scroll_forward() } unless $row_selector == 32
    bind_key(0, 'scroll backward'){ scroll_backward() } unless $range_selector == 0
    bind_key(?\C-b, 'scroll backward'){ scroll_backward() }
    bind_key(?\C-e, "Scroll Window Down"){ scroll_window_down } 
    bind_key(?\C-y, "Scroll Window Up"){ scroll_window_up } 
    bind_key([?g,?g], 'goto start'){ goto_start } # mapping double keys like vim
    bind_key(?G, 'goto end'){ goto_end() }

    # textpad has removed this since it messes with bookmarks which are on single-quote
    bind_key([?',?'], 'goto last position'){ goto_last_position } # vim , goto last row position (not column)
    bind_key(?L, :bottom_of_window)
    bind_key(?M, :middle_of_window)
    bind_key(?H, :top_of_window)

    bind_key(?/, :ask_search)
    bind_key(?n, :find_more)
    bind_key(?h, 'cursor backward'){ cursor_backward }  if respond_to? :cursor_backward
    bind_key(?l, 'cursor forward'){ cursor_forward } if respond_to? :cursor_forward
    bind_key(?$, :cursor_eol)
  end
  bind_key(?\C-a, 'start of line'){ cursor_bol } if respond_to? :cursor_bol
  bind_key(?\C-e, 'end of line'){ cursor_eol } if respond_to? :cursor_eol
  bind_key(?\M-l, :scroll_right)
  bind_key(?\M-h, :scroll_left)
  bind_key(KEY_ENTER, :fire_action_event)

  # save as and edit_external are only in tv and textarea
  # save_as can be given to list's also and tables
  # put them someplace so the code can be shared.
  bind_key([?\C-x, ?\C-s], :saveas)
  bind_key([?\C-x, ?e], :edit_external)
  
end

#edit_external ⇒ Object

Edit the content of the textpad using external editor defaulting to EDITOR. copied from textarea, modified for textpad and document, needs to be tested TODO This should not be allowed as a default, some objects may not want to allow it. It should be enabled, or programmer should bind it to a key



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# File 'lib/canis/core/include/listbindings.rb', line 136

def edit_external
  require 'canis/core/include/appmethods'
  require 'tempfile'
  f = Tempfile.new("canis")
  l = self.text
  l.each { |line| f.puts line }
  fp = f.path
  f.flush

  editor = ENV['EDITOR'] || 'vi'
  vimp = %x[which #{editor}].chomp
  ret = shell_out "#{vimp} #{fp}"
  if ret
    lines = File.open(f,'r').readlines
    if @document
      @document.text = lines
      @document.parse_required
      self.text(@document)
      # next line works
      #self.text(lines, :content_type => :tmux)
    else
      set_content(lines)
    end
  end
end

#saveas(name = nil, config = {}) ⇒ Object

adding here so that textpad can also use. Earlier in textarea only Test out with textarea too TODO 2014-09-03 - 12:49



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# File 'lib/canis/core/include/listbindings.rb', line 90

def saveas name=nil, config={}
  unless name
    name = rb_gets "File to save as: "
    return if name.nil? || name == ""
  end
  overwrite_if_exists = config[:overwrite_if_exists] || false
  unless overwrite_if_exists
    exists = File.exists? name
    if exists # need to prompt
      return unless rb_confirm("Overwrite existing file? ")
    end
  end
  # if it has been set do not prompt. or ask only if value is :ask
  # But this should only be if there is someformatting provided, that is there 
  # is a @document
  l = @list
  # the check for document is to see if it is some old widget like textarea that is calling this.
  if @document
    if config.key? :save_with_formatting
      save_with_formatting = config[:save_with_formatting] 
    else
      save_with_formatting = rb_confirm("Save with formatting?")
    end
    if save_with_formatting
      l = @list
    else
      l = @document.native_text().map do |w| w.to_s ; end
    end
  end
  #l = getvalue
  File.open(name, "w"){ |f|
    l.each { |line| f.puts line }
    #l.each { |line| f.write line.gsub(/\r/,"\n") }
  }
  rb_puts "#{name} written."
end

#saveas!(name = nil, config = {}) ⇒ Object

save content of textpad overwriting if name exists



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# File 'lib/canis/core/include/listbindings.rb', line 127

def saveas! name=nil, config={}
  config[:overwrite_if_exists] = true
  saveas name, config
end