Setting default input mode to text form for mobile client.

inputmode.rb

module ActionView
  module Helpers
    module FormHelper
      alias :text_field_without_inputmode :text_field

      # ==== Options
      # * <tt>:inputmode</tt> - 入力モード。Jpmobile::InputMode::HIRAGANA-全角ひらがな、Jpmobile::InputMode::HANKAKUKANA-半角カナ、Jpmobile::InputMode::ALPHABET-半角英字、Jpmobile::InputMode::NUMERIC-半角数字
      # ==== Examples
      #   text_field_tag(:user, :name, :size => 20, :inputmode => Jpmobile::InputMode::HIRAGANA)
      #   # => <input id="name" name="name" type="text" size="20" istyle="1" style="-wap-input-format:&quot;&lt;ja:h&gt;&quot;">
      def text_field(object_name, method, options = {})
        ActionView::Helpers.add_inputmode_option(options, request)
        text_field_without_inputmode(object_name, method, options)
      end

      alias :password_field_without_input_mode :password_field

      # ==== Options
      # * <tt>:inputmode</tt> - 入力モード。Jpmobile::InputMode::HIRAGANA-全角ひらがな、Jpmobile::InputMode::HANKAKUKANA-半角カナ、Jpmobile::InputMode::ALPHABET-半角英字、Jpmobile::InputMode::NUMERIC-半角数字
      # ==== Examples
      #   password_field_tag(:user, :password, :size => 20, :inputmode => Jpmobile::InputMode::ALPHABET)
      #   # => <input id="user_password" name="user[password]" type="password" value="#{@user.password}" size="20" istyle="3" style="-wap-input-format:&quot;*&lt;ja:en&gt;&quot;">
      def password_field(object_name, method, options = {})
        ActionView::Helpers.add_input_mode_option(options, request)
        password_field_without_input_mode(object_name, method, options)
      end
    end

    module FormTagHelper
      alias :text_field_tag_without_inputmode :text_field_tag

      # ==== Options
      # * <tt>:inputmode</tt> - 入力モード。Jpmobile::InputMode::HIRAGANA-全角ひらがな、Jpmobile::InputMode::HANKAKUKANA-半角カナ、Jpmobile::InputMode::ALPHABET-半角英字、Jpmobile::InputMode::NUMERIC-半角数字
      # ==== Examples
      #   text_field_tag('name', nil, :inputmode => Jpmobile::InputMode::HIRAGANA)
      #   # => <input id="name" name="name" type="text" istyle="1" style="-wap-input-format:&quot;&lt;ja:h&gt;&quot;">
      def text_field_tag(name, value = nil, options = {})
        ActionView::Helpers.add_inputmode_option(options, request)
        text_field_tag_without_inputmode(name, value, options)
      end
    end

    def self.add_inputmode_option(options, request)
      case request.mobile
      when Jpmobile::Mobile::Docomo
        case options[:inputmode]
        when Jpmobile::InputMode::HIRAGANA
          options[:istyle] = '1'                            # 全角かな
          options[:style]  = '-wap-input-format:"*<ja:h>"'  # 全角かな
        when Jpmobile::InputMode::HANKAKUKANA
          options[:istyle] = '2'                            # 半角カナ
          options[:style]  = '-wap-input-format:"*<ja:hk>"' # 半角カナ
        when Jpmobile::InputMode::ALPHABET
          options[:istyle] = '3'                            # 英字
          options[:style]  = '-wap-input-format:"*<ja:en>"' # 英字/半角文字
        when Jpmobile::InputMode::NUMERIC
          options[:istyle] = '4'                            # 数字
          options[:style]  = '-wap-input-format:"*<ja:n>"'  # 数字/半角文字
        end

      when Jpmobile::Mobile::Au
        case options[:inputmode]
        when Jpmobile::InputMode::HIRAGANA
          options[:istyle] = '1'                      # 全角かな
          options[:style]  = '-wap-input-format:*M;'  # 全角かな
        when Jpmobile::InputMode::HANKAKUKANA
          options[:istyle] = '2'                      # 半角カナ
          options[:style]  = '-wap-input-format:*M;'  # 全角かな
        when Jpmobile::InputMode::ALPHABET
          options[:istyle] = '3'                      # 英字
          options[:style]  = '-wap-input-format:*m;'  # 英字/半角文字
        when Jpmobile::InputMode::NUMERIC
          options[:istyle] = '4'                      # 数字
          options[:style]  = '-wap-input-format:*N;'  # 数字/半角文字
        end

      when Jpmobile::Mobile::Softbank
        case options[:inputmode]
        when Jpmobile::InputMode::HIRAGANA
          options[:mode]   = 'hiragana'                     # 全角かな
          options[:istyle] = '1'                            # 全角かな
          options[:style]  = '-wap-input-format:"*<ja:h>"'  # 全角かな
        when Jpmobile::InputMode::HANKAKUKANA
          options[:mode]   = 'hankakukana'                  # 半角カナ
          options[:istyle] = '2'                            # 半角カナ
          options[:style]  = '-wap-input-format:"*<ja:hk>"' # 半角カナ
        when Jpmobile::InputMode::ALPHABET
          options[:mode]   = 'alphabet'                     # 英字
          options[:istyle] = '3'                            # 英字
          options[:style]  = '-wap-input-format:"*<ja:en>"' # 英字/半角文字
        when Jpmobile::InputMode::NUMERIC
          options[:mode]   = 'numeric'                      # 数字
          options[:istyle] = '4'                            # 数字
          options[:style]  = '-wap-input-format:"*<ja:n>"'  # 数字/半角文字
        end
      end

      options.delete(:inputmode)
    end
  end
end

module Jpmobile
  module InputMode
    HIRAGANA    = 1   # 全角ひらがな
    HANKAKUKANA = 2   # 半角カナ
    ALPHABET    = 3   # 半角英字
    NUMERIC     = 4   # 半角数字
  end
end