Class: View::WorkingSet

Inherits:
Base
  • Object
show all
Defined in:
lib/view/working_set.rb

Overview

-------------------------------------------------------------------------- | Search or Working Set Name + (indicates dirty/saved state) | -------------------------------------------------------------------------- | Note if present | -------------------------------------------------------------------------- | | | app/models/foo.rb | | 10 def foo | | > 11 puts “bar” (highlight match) | | 12 end | | | | app/models/bar.rb | | 10 def bar | | 11 puts “foo” (highlight match) | | 12 end | | | | 10 def bar | | 11 puts “foo” (highlight match) | | 12 end | -------------------------------------------------------------------------- | 1-10 of 16 items | --------------------------------------------------------------------------

  • Highlight “selected item” with colors.

Constant Summary collapse

TITLE_ROWS = 
2
2

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(working_set) ⇒ WorkingSet

Returns a new instance of WorkingSet.



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# File 'lib/view/working_set.rb', line 36

def initialize(working_set)
  self.working_set = working_set
  self.file_index = index_files(working_set)
  self.selected_item_index = 0
  self.scroll_top = 0
  self.show_match_lines = true
end

Instance Attribute Details

#file_index ⇒ Object

Returns the value of attribute file_index.



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# File 'lib/view/working_set.rb', line 27

def file_index
  @file_index
end

#scroll_top ⇒ Object

Returns the value of attribute scroll_top.



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# File 'lib/view/working_set.rb', line 27

def scroll_top
  @scroll_top
end

#scrollable_height ⇒ Object

Returns the value of attribute scrollable_height.



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# File 'lib/view/working_set.rb', line 27

def scrollable_height
  @scrollable_height
end

#selected_item_index ⇒ Object

Returns the value of attribute selected_item_index.



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# File 'lib/view/working_set.rb', line 27

def selected_item_index
  @selected_item_index
end

#show_match_lines ⇒ Object

Returns the value of attribute show_match_lines.



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# File 'lib/view/working_set.rb', line 27

def show_match_lines
  @show_match_lines
end

#working_set ⇒ Object

Returns the value of attribute working_set.



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# File 'lib/view/working_set.rb', line 27

def working_set
  @working_set
end

Class Method Details

.render(working_set) ⇒ Object 



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# File 'lib/view/working_set.rb', line 32

def self.render(working_set)
  new(working_set).render
end

Instance Method Details

#calc_cols(percentage) ⇒ Object 



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# File 'lib/view/working_set.rb', line 309

def calc_cols(percentage)
  (Ncurses.COLS * percentage).to_i
end

#index_files(working_set) ⇒ Object 



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# File 'lib/view/working_set.rb', line 44

def index_files(working_set)
  index = {}
  prev_file = nil
  sorted_items.each_with_index do |item, idx|
    if prev_file == nil
      # first item in set
      prev_file = index[item.file_path] = { file_path: item.file_path, item_index: idx, prev_file: nil }
    elsif item.file_path == prev_file[:file_path]
      # another match within file, ignore it.
    else
      # next file
      current_file = index[item.file_path] = { file_path: item.file_path, item_index: idx, prev_file: prev_file }
      prev_file[:next_file] = current_file
      prev_file = current_file
    end
  end
  index
end

#needs_save? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/view/working_set.rb', line 88

def needs_save?
  !working_set.saved
end

#note ⇒ Object 



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# File 'lib/view/working_set.rb', line 84

def note
  working_set.note
end

#print_field(window, align, width, content) ⇒ Object 



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# File 'lib/view/working_set.rb', line 305

def print_field(window, align, width, content)
  window.printw "%#{align == :left ? "-" : ""}#{width}s", content
end

#print_scrollable_item(start_col, color_name, content, *color_content_pairs) ⇒ Object 



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# File 'lib/view/working_set.rb', line 267

def print_scrollable_item(start_col, color_name, content, *color_content_pairs)
  if scrolled_into_view?(@scrollable_line_number)
    y = scrollable_item_line_number_to_screen_row(@scrollable_line_number)
    x = start_col
    with_color @item_win, color_name do
      @item_win.mvprintw y, x, "%-#{Ncurses.COLS - start_col}s", content
    end
  end
end

#puts_scrollable_item(start_col, color_name, content) ⇒ Object 



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# File 'lib/view/working_set.rb', line 262

def puts_scrollable_item(start_col, color_name, content)
  print_scrollable_item(start_col, color_name, content)
  @scrollable_line_number += 1
end

#render ⇒ Object 



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# File 'lib/view/working_set.rb', line 96

def render
  UserInputActor.set_user_input_mode :working_set
  stdscr.clear
  stdscr.refresh
  render_title.refresh
  render_items.refresh
  render_footer.refresh
end

#render_footer ⇒ Object 



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# File 'lib/view/working_set.rb', line 188

def render_footer
  # Height, Width, Y, X   note: (0 width == full width)
  @footer_win ||= Ncurses.newwin(1, 0, Ncurses.LINES - 1, 0)
  @footer_win.move 0, 0
  with_color @footer_win, :blue do
    print_field @footer_win, :right, calc_cols(1), "#{selected_item_index + 1} of #{sorted_items.size} (#{file_index.keys.size} files)"
  end
  @footer_win
end

#render_items ⇒ Object 



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# File 'lib/view/working_set.rb', line 198

def render_items

  # Height, Width, Y, X   note: (0 width == full width)
  @item_win ||= Ncurses.newwin(scrollable_height, 0, TITLE_ROWS, 0)

  previous_file_path      = nil
  previous_row            = 0
  @scrollable_line_number = 0
  @scrollable_line_count  = 0

  sorted_items.each do |item|

    if !show_match_lines
      if item.file_path != previous_file_path
        color = item.file_path == selected_item.file_path ? :cyan : :green
        puts_scrollable_item 0, color, item.file_path
      end
    else
      # Print file name if it's a new file, a "--" separator if it's the same
      # file but non-consecutive lines, otherwise just nothing.
      if item.file_path == previous_file_path
        if item.row > previous_row + 1
          puts_scrollable_item 0, :white, "  --"
        end
      else
        if previous_file_path
          puts_scrollable_item 0, :white, ""
        end
        color = item.file_path == selected_item.file_path ? :cyan : :green
        puts_scrollable_item 0, color, item.file_path
      end

      # Print pre-match lines.
      item.pre_match_lines.each_with_index do |line, i|
        print_scrollable_item 0, :white, "  #{item.row - item.pre_match_lines.size + i}"
        puts_scrollable_item 5, :white, line
      end

      # Record match line number
      if item == selected_item
        @selected_item_line_number = @scrollable_line_number
      end

      # Print match line.
      print_scrollable_item 0, :blue, "#{item == selected_item ? ">" : " "}"
      print_scrollable_item 2, :yellow, item.row
      puts_scrollable_item 5, :yellow, item.match_line

      # Print post-match lines.
      item.post_match_lines.each_with_index do |line, i|
        print_scrollable_item 0, :white, "  #{item.row + 1 + i}"
        puts_scrollable_item 5, :white, line
      end
    end

    previous_file_path = item.file_path
    previous_row       = item.row + item.post_match_lines.size
  end

  @scrollable_line_count = @scrollable_line_number

  @item_win
end

#render_items_and_footer ⇒ Object 



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# File 'lib/view/working_set.rb', line 112

def render_items_and_footer
  render_items.refresh
  render_footer.refresh
end

#render_title ⇒ Object 



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# File 'lib/view/working_set.rb', line 166

def render_title
  # Height, Width, Y, X   note: (0 width == full width)
  @title_win ||= Ncurses.newwin(1, 0, 0, 0)
  @title_win.move 0, 0
  print_field @title_win, :left, calc_cols(1), " "
  @title_win.move 0, 0
  with_color @title_win, :blue do
    @title_win.printw title
  end
  if working_set.options["whole_word"]
    with_color @title_win, :red do
      @title_win.printw " [w]"
    end
  end
  # if needs_save?
  #   with_color @title_win, :red do
  #     @title_win.printw " +"
  #   end
  # end
  @title_win
end

#restore_selection_state(from_working_set_view) ⇒ Object 



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# File 'lib/view/working_set.rb', line 67

def restore_selection_state(from_working_set_view)
  if idx = sorted_items.find_index(from_working_set_view.selected_item)
    self.selected_item_index = idx
    self.show_match_lines    = from_working_set_view.show_match_lines
    render_items_and_footer # have to render to set @scrollable_line_count or the next call won't work
    set_scroll_top(from_working_set_view.scroll_top)
  end
end

#scroll(delta) ⇒ Object 



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# File 'lib/view/working_set.rb', line 139

def scroll(delta)
  return if @scrollable_line_count <= scrollable_height
  set_scroll_top(scroll_top + delta)
  render_items_and_footer
end

#scroll_bottom ⇒ Object 



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# File 'lib/view/working_set.rb', line 162

def scroll_bottom
  scroll_top + scrollable_height
end

#scrollable_item_line_number_to_screen_row(line_number) ⇒ Object 



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# File 'lib/view/working_set.rb', line 277

def scrollable_item_line_number_to_screen_row(line_number)
  line_number - scroll_top
end

#scrolled_into_view?(line_number, context_lines: 0) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/view/working_set.rb', line 281

def scrolled_into_view?(line_number, context_lines: 0)
  result = (line_number - context_lines) >= scroll_top && (line_number + context_lines) < scroll_bottom
  debug_message "scrolled_into_view line_number: #{line_number} context_lines: #{context_lines} result: #{result.inspect}"
  result
end

#select_next_file ⇒ Object 



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# File 'lib/view/working_set.rb', line 117

def select_next_file
  next_file = file_index[selected_item.file_path][:next_file]
  self.selected_item_index = next_file[:item_index] if next_file
  render_items_and_footer
end

#select_next_item ⇒ Object 



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# File 'lib/view/working_set.rb', line 129

def select_next_item
  self.selected_item_index += 1 unless selected_item_index >= sorted_items.size - 1
  render_items_and_footer
end

#select_prev_file ⇒ Object 



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# File 'lib/view/working_set.rb', line 123

def select_prev_file
  prev_file = file_index[selected_item.file_path][:prev_file]
  self.selected_item_index = prev_file[:item_index] if prev_file
  render_items_and_footer
end

#select_prev_item ⇒ Object 



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# File 'lib/view/working_set.rb', line 134

def select_prev_item
  self.selected_item_index -= 1 unless selected_item_index <= 0
  render_items_and_footer
end

#selected_item ⇒ Object 



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# File 'lib/view/working_set.rb', line 63

def selected_item
  sorted_items[selected_item_index]
end

#selected_item_in_view? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/view/working_set.rb', line 287

def selected_item_in_view?
  scrolled_into_view? @selected_item_line_number, context_lines: $CONTEXT_LINES
end

#selected_item_scroll_delta ⇒ Object 



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# File 'lib/view/working_set.rb', line 291

def selected_item_scroll_delta
  scroll_padding = 2 + $CONTEXT_LINES
  debug_message "scrolling #{@selected_item_line_number} | #{scroll_top} | #{scroll_bottom}"
  if scroll_top > (@selected_item_line_number - $CONTEXT_LINES)
    # scroll up
    ((scroll_top - @selected_item_line_number) * -1) - scroll_padding
  elsif scroll_bottom < (@selected_item_line_number + $CONTEXT_LINES)
    # scroll down
    @selected_item_line_number - scroll_bottom + scroll_padding
  else
    0
  end
end

#set_scroll_top(value) ⇒ Object 



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# File 'lib/view/working_set.rb', line 145

def set_scroll_top(value)
  self.scroll_top = if value < 2
                      # Reached top
                      0
                    elsif (value + scrollable_height) > @scrollable_line_count
                      # Reached bottom
                      [@scrollable_line_count - scrollable_height, 0].max
                    else
                      # Normal scroll
                      value
                    end
end

#sorted_items ⇒ Object 



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# File 'lib/view/working_set.rb', line 92

def sorted_items
  @_sorted_items ||= working_set.items.sort_by { |i| [i.file_path, i.row.to_i]  }
end

#title ⇒ Object 



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# File 'lib/view/working_set.rb', line 76

def title
  if working_set.name
    "Name: #{working_set.name}"
  else
    "Search: #{working_set.search}"
  end
end

#toggle_match_lines ⇒ Object 



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# File 'lib/view/working_set.rb', line 105

def toggle_match_lines
  self.show_match_lines = !show_match_lines
  self.scroll_top = 0
  @item_win.clear
  render_items.refresh
end