module ActionView module Helpers module JavaScriptHelper # This function can be used to render rjs inline # # <%= javascript_function do |page| # page.replace_html :list, :partial => 'list', :object => @list # end %> # def javascript_function(*args, &block) html_options = args.extract_options! function = args[0] || '' html_options.symbolize_keys! function = update_page(&block) if block_given? javascript_tag(function) end def jquery_id(id) id.to_s.count('#.*,>+~:[/ ') == 0 ? "##{id}" : id end def jquery_ids(ids) Array(ids).map{|id| jquery_id(id)}.join(',') end end module PrototypeHelper unless const_defined? :JQUERY_VAR JQUERY_VAR = '$' end unless const_defined? :JQCALLBACKS JQCALLBACKS = Set.new([ :beforeSend, :complete, :error, :success ] + (100..599).to_a) AJAX_OPTIONS = Set.new([ :before, :after, :condition, :url, :asynchronous, :method, :insertion, :position, :form, :with, :update, :script ]).merge(JQCALLBACKS) end def periodically_call_remote(options = {}) frequency = options[:frequency] || 10 # every ten seconds by default code = "setInterval(function() {#{remote_function(options)}}, #{frequency} * 1000)" javascript_tag(code) end def remote_function(options) javascript_options = options_for_ajax(options) update = '' if options[:update] && options[:update].is_a?(Hash) update = [] update << "success:'#{options[:update][:success]}'" if options[:update][:success] update << "failure:'#{options[:update][:failure]}'" if options[:update][:failure] update = '{' + update.join(',') + '}' elsif options[:update] update << "'#{options[:update]}'" end function = "#{JQUERY_VAR}.ajax(#{javascript_options})" function = "#{options[:before]}; #{function}" if options[:before] function = "#{function}; #{options[:after]}" if options[:after] function = "if (#{options[:condition]}) { #{function}; }" if options[:condition] function = "if (confirm('#{escape_javascript(options[:confirm])}')) { #{function}; }" if options[:confirm] return function end class JavaScriptGenerator module GeneratorMethods def insert_html(position, id, *options_for_render) insertion = position.to_s.downcase insertion = 'append' if insertion == 'bottom' insertion = 'prepend' if insertion == 'top' call "#{JQUERY_VAR}(\"#{jquery_id(id)}\").#{insertion}", render(*options_for_render) end def replace_html(id, *options_for_render) insert_html(:html, id, *options_for_render) end def replace(id, *options_for_render) call "#{JQUERY_VAR}(\"#{jquery_id(id)}\").replaceWith", render(*options_for_render) end def remove(*ids) call "#{JQUERY_VAR}(\"#{jquery_ids(ids)}\").remove" end def show(*ids) call "#{JQUERY_VAR}(\"#{jquery_ids(ids)}\").show" end def hide(*ids) call "#{JQUERY_VAR}(\"#{jquery_ids(ids)}\").hide" end def toggle(*ids) call "#{JQUERY_VAR}(\"#{jquery_ids(ids)}\").toggle" end def jquery_id(id) id.to_s.count('#.*,>+~:[/ ') == 0 ? "##{id}" : id end def jquery_ids(ids) Array(ids).map{|id| jquery_id(id)}.join(',') end end end protected def options_for_ajax(options) js_options = build_callbacks(options) url_options = options[:url] url_options = url_options.merge(:escape => false) if url_options.is_a?(Hash) js_options['url'] = "'#{url_for(url_options)}'" js_options['async'] = false if options[:type] == :synchronous js_options['type'] = options[:method] ? method_option_to_s(options[:method]) : ( options[:form] ? "'post'" : nil ) js_options['dataType'] = options[:datatype] ? "'#{options[:datatype]}'" : (options[:update] ? nil : "'script'") if options[:form] js_options['data'] = "#{JQUERY_VAR}.param(#{JQUERY_VAR}(this).serializeArray())" elsif options[:submit] js_options['data'] = "#{JQUERY_VAR}(\"##{options[:submit]} :input\").serialize()" elsif options[:with] js_options['data'] = options[:with].gsub("Form.serialize(this.form)","#{JQUERY_VAR}.param(#{JQUERY_VAR}(this.form).serializeArray())") end js_options['type'] ||= "'post'" if options[:method] if method_option_to_s(options[:method]) == "'put'" || method_option_to_s(options[:method]) == "'delete'" js_options['type'] = "'post'" if js_options['data'] js_options['data'] << " + '&" else js_options['data'] = "'" end js_options['data'] << "_method=#{options[:method]}'" end end if respond_to?('protect_against_forgery?') && protect_against_forgery? if js_options['data'] js_options['data'] << " + '&" else js_options['data'] = "'" end js_options['data'] << "#{request_forgery_protection_token}=' + encodeURIComponent('#{escape_javascript form_authenticity_token}')" end js_options['data'] = "''" if js_options['type'] == "'post'" && js_options['data'].nil? options_for_javascript(js_options.reject {|key, value| value.nil?}) end def build_update_for_success(html_id, insertion=nil) insertion = build_insertion(insertion) "#{JQUERY_VAR}('#{jquery_id(html_id)}').#{insertion}(request);" end def build_update_for_error(html_id, insertion=nil) insertion = build_insertion(insertion) "#{JQUERY_VAR}('#{jquery_id(html_id)}').#{insertion}(request.responseText);" end def build_insertion(insertion) insertion = insertion ? insertion.to_s.downcase : 'html' insertion = 'append' if insertion == 'bottom' insertion = 'prepend' if insertion == 'top' insertion end def build_observer(klass, name, options = {}) if options[:with] && (options[:with] !~ /[\{=(.]/) options[:with] = "'#{options[:with]}=' + value" else options[:with] ||= 'value' unless options[:function] end callback = options[:function] || remote_function(options) javascript = "#{JQUERY_VAR}('#{jquery_id(name)}').delayedObserver(" javascript << "#{options[:frequency] || 0}, " javascript << "function(element, value) {" javascript << "#{callback}}" #javascript << ", '#{options[:on]}'" if options[:on] javascript << ")" javascript_tag(javascript) end def build_callbacks(options) callbacks = {} options[:beforeSend] = ''; [:uninitialized,:loading,:loaded].each do |key| options[:beforeSend] << (options[key].last == ';' ? options.delete(key) : options.delete(key) << ';') if options[key] end options.delete(:beforeSend) if options[:beforeSend].blank? options[:error] = options.delete(:failure) if options[:failure] if options[:update] if options[:update].is_a?(Hash) options[:update][:error] = options[:update].delete(:failure) if options[:update][:failure] if options[:update][:success] options[:success] = build_update_for_success(options[:update][:success], options[:position]) << (options[:success] ? options[:success] : '') end if options[:update][:error] options[:error] = build_update_for_error(options[:update][:error], options[:position]) << (options[:error] ? options[:error] : '') end else options[:success] = build_update_for_success(options[:update], options[:position]) << (options[:success] ? options[:success] : '') end end options.each do |callback, code| if JQCALLBACKS.include?(callback) callbacks[callback] = "function(request){#{code}}" end end callbacks end end class JavaScriptElementProxy < JavaScriptProxy #:nodoc: unless const_defined? :JQUERY_VAR JQUERY_VAR = ActionView::Helpers::PrototypeHelper::JQUERY_VAR end def initialize(generator, id) id = id.to_s.count('#.*,>+~:[/ ') == 0 ? "##{id}" : id @id = id super(generator, "#{JQUERY_VAR}(\"#{id}\")") end def replace_html(*options_for_render) call 'html', @generator.send(:render, *options_for_render) end def replace(*options_for_render) call 'replaceWith', @generator.send(:render, *options_for_render) end def value() call 'val()' end def value=(value) call 'val', value end end class JavaScriptElementCollectionProxy < JavaScriptCollectionProxy #:nodoc:\ unless const_defined? :JQUERY_VAR JQUERY_VAR = ActionView::Helpers::PrototypeHelper::JQUERY_VAR end def initialize(generator, pattern) super(generator, "#{JQUERY_VAR}(#{pattern.to_json})") end end module ScriptaculousHelper unless const_defined? :JQUERY_VAR JQUERY_VAR = ActionView::Helpers::PrototypeHelper::JQUERY_VAR end unless const_defined? :SCRIPTACULOUS_EFFECTS SCRIPTACULOUS_EFFECTS = { :appear => {:method => 'fadeIn'}, :blind_down => {:method => 'blind', :mode => 'show', :options => {:direction => 'vertical'}}, :blind_up => {:method => 'blind', :mode => 'hide', :options => {:direction => 'vertical'}}, :blind_right => {:method => 'blind', :mode => 'show', :options => {:direction => 'horizontal'}}, :blind_left => {:method => 'blind', :mode => 'hide', :options => {:direction => 'horizontal'}}, :bounce_in => {:method => 'bounce', :mode => 'show', :options => {:direction => 'up'}}, :bounce_out => {:method => 'bounce', :mode => 'hide', :options => {:direction => 'up'}}, :drop_in => {:method => 'drop', :mode => 'show', :options => {:direction => 'up'}}, :drop_out => {:method => 'drop', :mode => 'hide', :options => {:direction => 'down'}}, :fade => {:method => 'fadeOut'}, :fold_in => {:method => 'fold', :mode => 'hide'}, :fold_out => {:method => 'fold', :mode => 'show'}, :grow => {:method => 'scale', :mode => 'show'}, :shrink => {:method => 'scale', :mode => 'hide'}, :slide_down => {:method => 'slide', :mode => 'show', :options => {:direction => 'up'}}, :slide_up => {:method => 'slide', :mode => 'hide', :options => {:direction => 'up'}}, :slide_right => {:method => 'slide', :mode => 'show', :options => {:direction => 'left'}}, :slide_left => {:method => 'slide', :mode => 'hide', :options => {:direction => 'left'}}, :squish => {:method => 'scale', :mode => 'hide', :options => {:origin => "['top','left']"}}, :switch_on => {:method => 'clip', :mode => 'show', :options => {:direction => 'vertical'}}, :switch_off => {:method => 'clip', :mode => 'hide', :options => {:direction => 'vertical'}}, :toggle_appear => {:method => 'fadeToggle'}, :toggle_slide => {:method => 'slide', :mode => 'toggle', :options => {:direction => 'up'}}, :toggle_blind => {:method => 'blind', :mode => 'toggle', :options => {:direction => 'vertical'}}, } end def visual_effect(name, element_id = false, js_options = {}) element = element_id ? element_id : "this" if SCRIPTACULOUS_EFFECTS.has_key? name.to_sym effect = SCRIPTACULOUS_EFFECTS[name.to_sym] name = effect[:method] mode = effect[:mode] js_options = js_options.merge(effect[:options]) if effect[:options] end [:color, :direction].each do |option| js_options[option] = "'#{js_options[option]}'" if js_options[option] end if js_options.has_key? :duration speed = js_options.delete :duration speed = (speed * 1000).to_i unless speed.nil? else speed = js_options.delete :speed end if ['fadeIn','fadeOut','fadeToggle'].include?(name) javascript = "#{JQUERY_VAR}('#{jquery_id(element_id)}').#{name}(" javascript << "#{speed}" unless speed.nil? javascript << ");" else javascript = "#{JQUERY_VAR}('#{jquery_id(element_id)}').#{mode || 'effect'}('#{name}'" javascript << ",#{options_for_javascript(js_options)}" unless speed.nil? && js_options.empty? javascript << ",#{speed}" unless speed.nil? javascript << ");" end end def sortable_element_js(element_id, options = {}) #:nodoc: #convert similar attributes options[:handle] = ".#{options[:handle]}" if options[:handle] if options[:tag] || options[:only] options[:items] = "> " options[:items] << options.delete(:tag) if options[:tag] options[:items] << ".#{options.delete(:only)}" if options[:only] end options[:connectWith] = options.delete(:containment).map {|x| "##{x}"} if options[:containment] options[:containment] = options.delete(:container) if options[:container] options[:dropOnEmpty] = false unless options[:dropOnEmpty] options[:helper] = "'clone'" if options[:ghosting] == true options[:axis] = case options.delete(:constraint) when "vertical" "y" when "horizontal" "x" when false nil when nil "y" end options.delete(:axis) if options[:axis].nil? options.delete(:overlap) options.delete(:ghosting) if options[:onUpdate] || options[:url] options[:with] ||= "#{JQUERY_VAR}(this).sortable('serialize',{key:'#{element_id}'})" options[:onUpdate] ||= "function(){" + remote_function(options) + "}" end options.delete_if { |key, value| PrototypeHelper::AJAX_OPTIONS.include?(key) } options[:update] = options.delete(:onUpdate) if options[:onUpdate] [:axis, :cancel, :containment, :cursor, :handle, :tolerance, :items, :placeholder].each do |option| options[option] = "'#{options[option]}'" if options[option] end options[:connectWith] = array_or_string_for_javascript(options[:connectWith]) if options[:connectWith] %(#{JQUERY_VAR}('#{jquery_id(element_id)}').sortable(#{options_for_javascript(options)});) end def draggable_element_js(element_id, options = {}) %(#{JQUERY_VAR}("#{jquery_id(element_id)}").draggable(#{options_for_javascript(options)});) end def drop_receiving_element_js(element_id, options = {}) #convert similar options options[:hoverClass] = options.delete(:hoverclass) if options[:hoverclass] options[:drop] = options.delete(:onDrop) if options[:onDrop] if options[:drop] || options[:url] options[:with] ||= "'id=' + encodeURIComponent(#{JQUERY_VAR}(ui.draggable).attr('id'))" options[:drop] ||= "function(ev, ui){" + remote_function(options) + "}" end options.delete_if { |key, value| PrototypeHelper::AJAX_OPTIONS.include?(key) } options[:accept] = array_or_string_for_javascript(options[:accept]) if options[:accept] [:activeClass, :hoverClass, :tolerance].each do |option| options[option] = "'#{options[option]}'" if options[option] end %(#{JQUERY_VAR}('#{jquery_id(element_id)}').droppable(#{options_for_javascript(options)});) end end end end