Move widgets to separate files

lib/main.rb

@@ -3,6 +3,9 @@
 require 'thread'
 require 'curses'
 
+require 'widgets/search'
+require 'widgets/list'
+
 class Main
   def self.inherited(_base)
     raise "#{self} is final"
@@ -66,9 +69,9 @@ private
   end
 
   def initials
-    @search = Search.new 1, 1, Curses.stdscr.maxx - 2, 1
+    @search = Widgets::Search.new 1, 1, Curses.stdscr.maxx - 2, 1
 
-    @list = List.new(
+    @list = Widgets::List.new(
       1, 2,
       Curses.stdscr.maxx - 2, Curses.stdscr.maxy - 3,
       1.upto(Curses.stdscr.maxy - 1 + 10).map do
@@ -109,137 +112,3 @@ private
     Curses.refresh
   end
 end
-
-class Search
-  attr_reader :x, :y, :width, :height, :text, :cursor_pos
-
-  def initialize(x, y, width, height)
-    @x = x
-    @y = y
-    @width = width
-    @height = height
-    @text = ''
-    @cursor_pos = 0
-  end
-
-  def render
-    total = width - 1
-    start = [0, cursor_pos - total].max
-
-    cut = text[start...start + total]
-
-    Curses.setpos x, y
-
-    before_cursor = cut[0...cursor_pos]
-    under_cursor  = cut[cursor_pos] || ' '
-    after_cursor  = cut[(1 + cursor_pos)..-1] || ''
-
-    Curses.attron Curses.color_pair 3
-    Curses.addstr before_cursor
-
-    Curses.attron Curses.color_pair 4
-    Curses.addstr under_cursor
-
-    Curses.attron Curses.color_pair 3
-    Curses.addstr after_cursor
-  end
-
-  def putc(c)
-    @text = "#{text[0...cursor_pos]}#{c}#{text[cursor_pos..-1]}"
-    @cursor_pos += 1
-    update
-  end
-
-  def left
-    @cursor_pos -= 1
-    update
-  end
-
-  def right
-    @cursor_pos += 1
-    update
-  end
-
-  def home
-    @cursor_pos = 0
-  end
-
-  def end
-    @cursor_pos = @text.length
-  end
-
-  def backspace
-    return unless cursor_pos.positive?
-    @text = "#{text[0...(cursor_pos - 1)]}#{text[cursor_pos..-1]}"
-    @cursor_pos -= 1
-    update
-  end
-
-  def delete
-    return if cursor_pos > text.length
-    @text = "#{text[0...cursor_pos]}#{text[(cursor_pos + 1)..-1]}"
-  end
-
-  def update
-    if @cursor_pos.negative?
-      @cursor_pos = 0
-    elsif @cursor_pos > @text.length
-      @cursor_pos = @text.length
-    end
-  end
-end
-
-class List
-  attr_reader :x, :y, :width, :height, :active, :top, :items
-
-  def initialize(x, y, width, height, items)
-    @x = x
-    @y = y
-    @width = width
-    @height = height
-    @active = 0
-    @top = 0
-    @items = Array(items)
-  end
-
-  def render
-    items[top...(top + height)].each_with_index.each do |item, offset|
-      index = top + offset
-
-      if index == active
-        Curses.attron Curses.color_pair 2
-      else
-        Curses.attron Curses.color_pair 1
-      end
-
-      Curses.setpos y + offset, x
-
-      s = "#{index}: #{item}"
-      if s.length <= width
-        Curses.addstr s.ljust width
-      else
-        Curses.addstr "#{s[0...width - 3]}..."
-      end
-    end
-  end
-
-  def up
-    @active -= 1
-    @active = items.count - 1 if active.negative?
-    update
-  end
-
-  def down
-    @active += 1
-    @active = 0 if active >= items.count
-    update
-  end
-
-  def update
-    if active < top
-      @top = active
-    elsif active >= top + height
-      @top = active - height + 1
-    end
-  end
-end

lib/widgets/list.rb

@@ -0,0 +1,58 @@
+# frozen_string_literal: true
+
+module Widgets
+  class List
+    attr_reader :x, :y, :width, :height, :active, :top, :items
+
+    def initialize(x, y, width, height, items)
+      @x = x
+      @y = y
+      @width = width
+      @height = height
+      @active = 0
+      @top = 0
+      @items = Array(items)
+    end
+
+    def render
+      items[top...(top + height)].each_with_index.each do |item, offset|
+        index = top + offset
+
+        if index == active
+          Curses.attron Curses.color_pair 2
+        else
+          Curses.attron Curses.color_pair 1
+        end
+
+        Curses.setpos y + offset, x
+
+        s = "#{index}: #{item}"
+        if s.length <= width
+          Curses.addstr s.ljust width
+        else
+          Curses.addstr "#{s[0...width - 3]}..."
+        end
+      end
+    end
+
+    def up
+      @active -= 1
+      @active = items.count - 1 if active.negative?
+      update
+    end
+
+    def down
+      @active += 1
+      @active = 0 if active >= items.count
+      update
+    end
+
+    def update
+      if active < top
+        @top = active
+      elsif active >= top + height
+        @top = active - height + 1
+      end
+    end
+  end
+end

lib/widgets/search.rb

@@ -0,0 +1,82 @@
+# frozen_string_literal: true
+
+module Widgets
+  class Search
+    attr_reader :x, :y, :width, :height, :text, :cursor_pos
+
+    def initialize(x, y, width, height)
+      @x = x
+      @y = y
+      @width = width
+      @height = height
+      @text = ''
+      @cursor_pos = 0
+    end
+
+    def render
+      total = width - 1
+      start = [0, cursor_pos - total].max
+
+      cut = text[start...start + total]
+
+      Curses.setpos x, y
+
+      before_cursor = cut[0...cursor_pos]
+      under_cursor  = cut[cursor_pos] || ' '
+      after_cursor  = cut[(1 + cursor_pos)..-1] || ''
+
+      Curses.attron Curses.color_pair 3
+      Curses.addstr before_cursor
+
+      Curses.attron Curses.color_pair 4
+      Curses.addstr under_cursor
+
+      Curses.attron Curses.color_pair 3
+      Curses.addstr after_cursor
+    end
+
+    def putc(c)
+      @text = "#{text[0...cursor_pos]}#{c}#{text[cursor_pos..-1]}"
+      @cursor_pos += 1
+      update
+    end
+
+    def left
+      @cursor_pos -= 1
+      update
+    end
+
+    def right
+      @cursor_pos += 1
+      update
+    end
+
+    def home
+      @cursor_pos = 0
+    end
+
+    def end
+      @cursor_pos = @text.length
+    end
+
+    def backspace
+      return unless cursor_pos.positive?
+      @text = "#{text[0...(cursor_pos - 1)]}#{text[cursor_pos..-1]}"
+      @cursor_pos -= 1
+      update
+    end
+
+    def delete
+      return if cursor_pos > text.length
+      @text = "#{text[0...cursor_pos]}#{text[(cursor_pos + 1)..-1]}"
+    end
+
+    def update
+      if @cursor_pos.negative?
+        @cursor_pos = 0
+      elsif @cursor_pos > @text.length
+        @cursor_pos = @text.length
+      end
+    end
+  end
+end