module Nitro # A helper mixin for programmatically building XHTML # blocks. module XhtmlMixin private # Render select options. The parameter is a hash of options. # # [+labels+] # The option labels. # # [+values+] # The corresponding values. # # [+labels_values+] # Use when labels == values. # # [+selected+] # The value of the selected option. # # === Examples # # labels = ['Male', 'Female'] # o.select(:name => 'sex') { # o.options(:labels => labels, :selected => 1) # } # # or # # #{options :labels => labels, :values => [..], :selected => 1} # #{build :options, :labels => labels, :values => [..], :selected => 1} def options(options = {}) if labels = options[:labels] || options[:labels_values] str = '' unless values = options[:values] if values = options[:labels_values] else values = (0...labels.size).to_a end end selected = (options[:selected] || -1).to_i labels.each_with_index do |label, idx| value = values[idx] if value == selected str << %|| else str << %|| end end return str else raise ArgumentError.new('No labels provided') end end # Render a submit input. def submit(options = nil) str = '' if options opts = options.collect { |k, v| %[#{k}="#{v}"] }.join(' ') str << %[] else str << %|| end return str end # Render a date select. Override to customize this. # # === Example # # #{date_select date, :name => 'brithday'} def date_select(date, options = {}) raise 'No name provided to date_select' unless name = options[:name] date ||= Time.now %{     } end # Render a time select. Override to customize this. def time_select(time, options = {}) raise 'No name provided to time_select' unless name = options[:name] time ||= Time.now %{   } end # Render a datetime select. Override to customize this. def datetime_select(time, options) date_select(time, options) + ' at ' + time_select(time, options) end # gmosx: keep the leading / to be IE friendly. def js_popup(options = {}) o = { :width => 320, :height => 240, :title => 'Popup', :resizable => false, :scrollbars => false, }.merge(options) poptions = (o[:resizable] ? 'resizable=yes,' : 'resizable=no,') poptions << (o[:scrollbars] ? 'scrollbars=yes' : 'scrollbars=no') url = o[:url] || o[:uri] %[javascript: var pwl = (screen.width - #{o[:width]}) / 2; var pwt = (screen.height - #{o[:height]}) / 2; window.open('#{url}', '#{o[:title]}', 'width=#{o[:width]},height=#{o[:height]},top='+pwt+',left='+pwl+', #{poptions}'); return false;"] end # === Example # # true}>Hello def onclick_popup(options = {}) %|onclick="#{js_popup(options)}"| end # Emit a link that spawns a popup window. # # === Example # # 'Hello', :url => 'add-comment', :scrollbars => true}>Hello def popup(options = {}) %|#{options[:text] || 'Popup'}| end end end # * George Moschovitis