pager.rb in tty-pager-0.8.0

- old
+ new

@@ -7,57 +7,35 @@
 require_relative "pager/system"
 require_relative "pager/version"
 
 module TTY
   class Pager
-    PROMPT_HEIGHT = 2
+    Error = Class.new(StandardError)
 
-    PAGE_BREAK = "\n--- Page -%s- " \
-                  "Press enter/return to continue " \
-                  "(or q to quit) ---".freeze
-
     # Create a pager
     #
     # @param [Hash] options
     # @option options [Proc] :prompt
     #   a proc object that accepts page number
     # @option options [IO] :input
     #   the object to send input to
     # @option options [IO] :output
     #   the object to send output to
-    # @option options [Integer] :height
-    #   the terminal height
-    # @option options [Integer] :width
-    #   the terminal width
     # @option options [Boolean] :enabled
     #   disable/enable text paging
     #
     # @api public
     def initialize(options = {})
-      @height  = options.fetch(:height) { page_height }
-      @width   = options.fetch(:width)  { page_width }
       @input   = options.fetch(:input)  { $stdin }
       @output  = options.fetch(:output) { $stdout }
       @enabled = options.fetch(:enabled) { true }
-      @prompt  = options.fetch(:prompt) { default_prompt }
-      @height -= PROMPT_HEIGHT
-      @output = output
 
       if self.class == TTY::Pager
-        @pager = find_available
+        @pager = find_available(options)
       end
     end
 
-    # Default prompt for paging
-    #
-    # @return [Proc]
-    #
-    # @api private
-    def default_prompt
-      proc { |page_num| output.puts PAGE_BREAK % page_num }
-    end
-
     # Check if pager is enabled
     #
     # @return [Boolean]
     #
     # @api public
@@ -109,16 +87,16 @@
     # utility to perform pagination with SystemPager. Finally,
     # if no system utility exists a BasicPager is used which
     # is pure Ruby implementation.
     #
     # @api private
-    def find_available
+    def find_available(options)
       if !enabled?
         NullPager.new
-      elsif SystemPager.available? && !Pager.jruby?
-        SystemPager.new
+      elsif !Pager.jruby? && SystemPager.can?
+        SystemPager.new(options)
       else
-        BasicPager.new
+        BasicPager.new(options)
       end
     end
 
     # Check if running on jruby
     #