question.rb in tty-prompt-0.19.0

- old
+ new

@@ -32,11 +32,11 @@
       attr_reader :validation
 
       # Initialize a Question
       #
       # @api public
-      def initialize(prompt, options = {})
+      def initialize(prompt, **options)
         @prompt     = prompt
         @prefix     = options.fetch(:prefix) { @prompt.prefix }
         @default    = options.fetch(:default) { UndefinedSetting }
         @required   = options.fetch(:required) { false }
         @echo       = options.fetch(:echo) { true }
@@ -45,12 +45,14 @@
         @validation = options.fetch(:validation) { UndefinedSetting }
         @convert    = options.fetch(:convert) { UndefinedSetting }
         @active_color = options.fetch(:active_color) { @prompt.active_color }
         @help_color = options.fetch(:help_color) { @prompt.help_color }
         @error_color = options.fetch(:error_color) { :red }
+        @value      = options.fetch(:value) { UndefinedSetting }
         @messages   = Utils.deep_copy(options.fetch(:messages) { { } })
         @done       = false
+        @first_render = true
         @input      = nil
 
         @evaluator = Evaluator.new(self)
 
         @evaluator << CheckRequired
@@ -92,12 +94,11 @@
       # @param [String] message
       #
       # @return [self]
       #
       # @api public
-      def call(message, &block)
-        return if Utils.blank?(message)
+      def call(message = '', &block)
         @message = message
         block.call(self) if block
         @prompt.subscribe(self) do
           render
         end
@@ -129,11 +130,14 @@
       #
       # @return [String]
       #
       # @api private
       def render_question
-        header = ["#{@prefix}#{message} "]
+        header = []
+        if !Utils.blank?(@prefix) || !Utils.blank?(message)
+          header << "#{@prefix}#{message} "
+        end
         if !echo?
           header
         elsif @done
           header << @prompt.decorate(@input.to_s, @active_color)
         elsif default? && !Utils.blank?(@default)
@@ -156,11 +160,16 @@
 
       # Process input
       #
       # @api private
       def read_input(question)
-        @prompt.read_line(question, echo: echo).chomp
+        options = {echo: echo}
+        if value? && @first_render
+          options[:value] = @value
+          @first_render = false
+        end
+        @prompt.read_line(question, options).chomp
       end
 
       # Handle error condition
       #
       # @return [String]
@@ -262,9 +271,24 @@
       #
       # @api public
       def validate(value = nil, message = nil, &block)
         messages[:valid?] = message if message
         @validation = (value || block)
+      end
+
+      # Prepopulate input with custom content
+      #
+      # @api public
+      def value(val)
+        return @value if val.nil?
+        @value = val
+      end
+
+      # Check if custom value is present
+      #
+      # @api private
+      def value?
+        @value != UndefinedSetting
       end
 
       def validation?
         @validation != UndefinedSetting
       end