module VirtualDOM module DOM HTML_TAGS = %w(a abbr address area article aside audio b base bdi bdo big blockquote body br button canvas caption cite code col colgroup data datalist dd del details dfn dialog div dl dt em embed fieldset figcaption figure footer form h1 h2 h3 h4 h5 h6 head header hr html i iframe img input ins kbd keygen label legend li link main map mark menu menuitem meta meter nav noscript object ol optgroup option output p param picture pre progress q rp rt ruby s samp script section select small source span strong style sub summary sup table tbody td textarea tfoot th thead time title tr track u ul var video wbr) HTML_TAGS.each do |tag| define_method tag do |params, &block| @__virtual_nodes__ ||= [] if block current = @__virtual_nodes__ @__virtual_nodes__ = [] result = block.call || '' vnode = VirtualNode.new(tag, process_params(params), @__virtual_nodes__.count == 0 ? result : @__virtual_nodes__).to_n @__virtual_nodes__ = current else vnode = VirtualNode.new(tag, process_params(params), []).to_n end @__virtual_nodes__ << vnode vnode end end def process_params(params) return {} unless params.is_a?(Hash) params.dup.each do |k, v| case k when 'class' params['className'] = params.delete('class') when 'data' params['dataset'] = params.delete('data') when 'default' params['defaultValue'] = params.delete('default') when /^on/ params[k] = event_callback(v) end end params end if defined?(Browser::Event) def event_callback(v) proc do |e| v.call(Browser::Event.new(e)) end end else def event_callback(v) proc do |e| v.call(Native(e)) end end end # for backwards compatibility, you can return string def text(string) @__virtual_nodes__ << string.to_s end # for backwards compatibility def virtual_dom(&block) block.call end end end