IRuby::Input (#77)

Adds the IRuby::Input class which provides widgets for getting inputs from the user.

Author: kylekyle

iruby.gemspec

@@ -30,4 +30,5 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency 'bond', '~> 0.5'
   s.add_runtime_dependency 'multi_json', '~> 1.11'
   s.add_runtime_dependency 'mimemagic', '~> 0.3'
+  s.add_runtime_dependency 'data_uri', '~> 0.1'
 end

lib/iruby.rb

@@ -8,6 +8,7 @@
 require 'iruby/kernel'
 require 'iruby/backend'
 require 'iruby/ostream'
+require 'iruby/input'
 require 'iruby/formatter'
 require 'iruby/utils'
 require 'iruby/display'

lib/iruby/input.rb

@@ -0,0 +1,41 @@
+module IRuby
+  module Input
+    # autoload so that erector is not a required
+    # runtime dependency of IRuby
+    autoload :Builder, 'iruby/input/autoload'
+
+    def input prompt='Input'
+      result = form{input label: prompt}
+      result[:input] unless result.nil?
+    end
+
+    def password prompt='Password'
+      result = form{password label: prompt}
+      result[:password] unless result.nil?
+    end
+
+    def form &block
+      builder = Builder.new &block
+      form = InputForm.new(
+        fields: builder.fields, 
+        buttons: builder.buttons
+      )
+      form.widget_display
+      builder.process_result form.submit
+    end
+       
+    def popup title='Input', &block
+      builder = Builder.new &block
+      form = InputForm.new fields: builder.fields
+      popup = Popup.new(
+        title: title, 
+        form: form, 
+        buttons: builder.buttons
+      )
+      popup.widget_display
+      builder.process_result form.submit
+    end
+  end
+
+  extend Input
+end