/lib/active_scaffold/bridges/date_picker/lib/datepicker_bridge.rb

class File #:nodoc:

  unless File.respond_to?(:binread)
    def self.binread(file)
      File.open(file, 'rb') { |f| f.read }
    end
  end

end 

ActiveScaffold::Config::Core.class_eval do
  def initialize_with_date_picker(model_id)
    initialize_without_date_picker(model_id)
    
    date_picker_fields = self.model.columns.collect{|c| {:name => c.name.to_sym, :type => c.type} if [:date, :datetime].include?(c.type) }.compact
    # check to see if file column was used on the model
    return if date_picker_fields.empty?
    
    # automatically set the forum_ui to a file column
    date_picker_fields.each{|field|
      col_config = self.columns[field[:name]] 
      col_config.form_ui = (field[:type] == :date ? :date_picker : :datetime_picker)
    }
  end
  
  alias_method_chain :initialize, :date_picker
end


module ActiveScaffold
  module Bridges
    module DatePickerBridge
      DATE_FORMAT_CONVERSION = {
        '%a' => 'D',
        '%A' => 'DD',
        '%b' => 'M',
        '$B' => 'MM',
        '%d' => 'dd',
        '%e' => 'd',
        '%j' => 'oo',
        '%m' => 'mm',
        '%y' => 'y',
        '%Y' => 'yy',
        '%H' => 'hh', # options ampm => false
        '%I' => 'hh', # options ampm => true
        '%M' => 'mm',
        '%p' => 'tt',
        '%S' => 'ss'
      }
      
      def self.localization
        "jQuery(function($){
  if (typeof($.datepicker) === 'object') {
    #{date_options_for_locales}
    $.datepicker.setDefaults($.datepicker.regional['#{I18n.locale}']);
  }
  if (typeof($.timepicker) === 'object') {
    #{datetime_options_for_locales}
    $.timepicker.setDefaults($.timepicker.regional['#{I18n.locale}']);
  }
});\n"        
      end

      def self.date_options_for_locales
        I18n.available_locales.collect do |locale|
          locale_date_options = date_options(locale)
          if locale_date_options
            "$.datepicker.regional['#{locale}'] = #{locale_date_options.to_json};"
          else
            nil
          end
        end.compact.join('')
      end
      
      def self.date_options(locale)
        begin
          date_options = I18n.translate! 'date', :locale => locale
          date_picker_options = { :closeText => as_(:close),
            :prevText => as_(:previous),
            :nextText => as_(:next),
            :currentText => as_(:today),
            :monthNames => date_options[:month_names][1, (date_options[:month_names].length - 1)],
            :monthNamesShort => date_options[:abbr_month_names][1, (date_options[:abbr_month_names].length - 1)],
            :dayNames => date_options[:day_names],
            :dayNamesShort => date_options[:abbr_day_names],
            :dayNamesMin => date_options[:abbr_day_names],
            :changeYear => true,
            :changeMonth => true,
          }

          begin
            as_date_picker_options = I18n.translate! 'active_scaffold.date_picker_options'
            date_picker_options.merge!(as_date_picker_options) if as_date_picker_options.is_a? Hash
          rescue
            Rails.logger.warn "ActiveScaffold: Missing date picker localization for your locale: #{locale}"
          end

          js_format = self.to_datepicker_format(date_options[:formats][:default])
          date_picker_options[:dateFormat] = js_format unless js_format.nil?
          date_picker_options
        rescue
          if locale == I18n.locale
            raise
          else
            nil
          end
        end
      end

      def self.datetime_options_for_locales
        I18n.available_locales.collect do |locale|
          locale_datetime_options = datetime_options(locale)
          if locale_datetime_options
            "$.timepicker.regional['#{locale}'] = #{locale_datetime_options.to_json};"
          else
            nil
          end
        end.compact.join('')
      end
      
      def self.datetime_options(locale)
        begin
          rails_time_format = I18n.translate! 'time.formats.default', :locale => locale
          datetime_options = I18n.translate! 'datetime.prompts', :locale => locale
          datetime_picker_options = {:ampm => false,
            :hourText => datetime_options[:hour],
            :minuteText => datetime_options[:minute],
            :secondText => datetime_options[:second],
          }

          begin
            as_datetime_picker_options = I18n.translate! 'active_scaffold.datetime_picker_options'
            datetime_picker_options.merge!(as_datetime_picker_options) if as_datetime_picker_options.is_a? Hash
          rescue
            Rails.logger.warn "ActiveScaffold: Missing datetime picker localization for your locale: #{locale}"
          end

          date_format, time_format = self.split_datetime_format(self.to_datepicker_format(rails_time_format))
          datetime_picker_options[:dateFormat] = date_format unless date_format.nil?
          unless time_format.nil?
            datetime_picker_options[:timeFormat] = time_format
            datetime_picker_options[:ampm] = true if rails_time_format.include?('%I')
          end
          datetime_picker_options
        rescue
          if locale == I18n.locale
            raise
          else
            nil
          end
        end
      end
      
      def self.to_datepicker_format(rails_format)
        return nil if rails_format.nil?
        if rails_format =~ /%[cUWwxXZz]/
          Rails.logger.warn("AS DatePickerBridge: Can t convert rails date format: #{rails_format} to jquery datepicker format. Options %c, %U, %W, %w, %x %X, %z, %Z are not supported by datepicker]")
          nil
        else
          js_format = rails_format.dup
          DATE_FORMAT_CONVERSION.each do |key, value|
            js_format.gsub!(Regexp.new("#{key}"), value)
          end
          js_format
        end
      end
      
      def self.split_datetime_format(datetime_format)
        date_format = datetime_format
        time_format = nil
        time_start_indicators = %w{hh mm tt ss}
        unless datetime_format.nil?
          start_indicator = time_start_indicators.detect {|indicator| datetime_format.include?(indicator)}
          unless start_indicator.nil?
            pos_time_format = datetime_format.index(start_indicator)
            date_format = datetime_format.to(pos_time_format - 1)
            time_format = datetime_format.from(pos_time_format)
          end
        end
        return date_format, time_format
      end
      
      module DatepickerColumnHelpers
        def datepicker_split_datetime_format(datetime_format)
          ActiveScaffold::Bridges::DatePickerBridge.split_datetime_format(datetime_format)
        end
        
        def to_datepicker_format(rails_format)
          ActiveScaffold::Bridges::DatePickerBridge.to_datepicker_format(rails_format)
        end
        
        def datepicker_format_options(column, format, options)
          if column.form_ui == :date_picker
            js_format = to_datepicker_format(I18n.translate!("date.formats.#{format}"))
            options['date:dateFormat'] = js_format unless js_format.nil?
          else
            rails_time_format = I18n.translate!("time.formats.#{format}")
            date_format, time_format = datepicker_split_datetime_format(self.to_datepicker_format(rails_time_format))
            options['date:dateFormat'] = date_format unless date_format.nil?
            unless time_format.nil?
              options['time:timeFormat'] = time_format
              options['time:ampm'] = true if rails_time_format.include?('%I')
            end
          end unless format == :default
        end
      end
      
      module SearchColumnHelpers
        def active_scaffold_search_date_bridge_calendar_control(column, options, current_search, name)
          if current_search.is_a? Hash
            value = controller.class.condition_value_for_datetime(current_search[name], column.form_ui == :date_picker ? :to_date : :to_time)
          else
            value = current_search
          end
          options = column.options.merge(options).except!(:include_blank, :discard_time, :discard_date, :value)
          options = active_scaffold_input_text_options(options.merge(column.options))
          options[:class] << " #{column.search_ui.to_s}"
          options[:style] = "display:#{(options[:show].nil? || options[:show]) ? '' : 'none'}"
          format = options.delete(:format) || :default
          datepicker_format_options(column, format, options)
          text_field_tag("#{options[:name]}[#{name}]", value ? l(value, :format => format) : nil, options.merge(:id => "#{options[:id]}_#{name}", :name => "#{options[:name]}[#{name}]"))
        end
      end
      
      module FormColumnHelpers
        def active_scaffold_input_date_picker(column, options)
          options = active_scaffold_input_text_options(options.merge(column.options))
          options[:class] << " #{column.form_ui.to_s}"
          value = controller.class.condition_value_for_datetime(@record.send(column.name), column.form_ui == :date_picker ? :to_date : :to_time)
          format = options.delete(:format) || :default
          datepicker_format_options(column, format, options)
          options[:value] = (value ? l(value, :format => format) : nil)
          text_field(:record, column.name, options)
        end
      end
    end
  end
end

ActionView::Base.class_eval do
  include ActiveScaffold::Bridges::Shared::DateBridge::SearchColumnHelpers
  alias_method :active_scaffold_search_date_picker, :active_scaffold_search_date_bridge
  alias_method :active_scaffold_search_datetime_picker, :active_scaffold_search_date_bridge
  include ActiveScaffold::Bridges::Shared::DateBridge::HumanConditionHelpers
  alias_method :active_scaffold_human_condition_date_picker, :active_scaffold_human_condition_date_bridge
  alias_method :active_scaffold_human_condition_datetime_picker, :active_scaffold_human_condition_date_bridge
  include ActiveScaffold::Bridges::DatePickerBridge::SearchColumnHelpers
  include ActiveScaffold::Bridges::DatePickerBridge::FormColumnHelpers
  alias_method :active_scaffold_input_datetime_picker, :active_scaffold_input_date_picker
  include ActiveScaffold::Bridges::DatePickerBridge::DatepickerColumnHelpers
end
ActiveScaffold::Finder::ClassMethods.module_eval do
  include ActiveScaffold::Bridges::Shared::DateBridge::Finder::ClassMethods
  alias_method :condition_for_date_picker_type, :condition_for_date_bridge_type
  alias_method :condition_for_datetime_picker_type, :condition_for_date_picker_type
end