ruby-hyperloop.io/chatrb.html at old_reactrb_master · ruby-hyperloop/ruby-hyperloop.io · GitHub

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<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <title>Hello React</title>
    <script language="JavaScript">
      function redirectHttpsToHttp() {
        if (window.location.protocol == "https:") {
          window.location = "http://" + window.location.hostname + window.location.pathname + window.location.search;
        }
      }
      redirectHttpsToHttp();
    </script>
    <script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/marked/0.3.5/marked.min.js"></script>
    <script src="https://rawgit.com/reactrb/reactrb-express/master/reactrb-express.js"></script>
    <script src="http://reactrb.github.io/react/js/chat_service.js"></script>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap-theme.min.css" integrity="sha384-fLW2N01lMqjakBkx3l/M9EahuwpSfeNvV63J5ezn3uZzapT0u7EYsXMjQV+0En5r" crossorigin="anonymous">
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js" integrity="sha384-0mSbJDEHialfmuBBQP6A4Qrprq5OVfW37PRR3j5ELqxss1yVqOtnepnHVP9aJ7xS" crossorigin="anonymous"></script>

    <style type="text/css">

      body {
        padding-top: 50px;
        padding-bottom: 60px;
      }
      div.alternating:nth-of-type(odd) {
        background-color: #ddd;
      }
      div.alternating:nth-of-type(even) {
        background-color: #ccc;
      }
      .input-box {
        padding: 10px;
      }
      .white {
        color: white;
      }
      .message {
        padding-top: 10px;
      }
      textarea {
        width: 100%;;
      }
      div.reactrb-icon {
        float: left;
        width: 50px;
        height: 50px;
        margin-right: 8px;
        background-size: contain;
        background-image: url("http://reactrb.github.io/react/img/logo_svg.png");
      }
    </style>
  </head>
  <body>
    <div id="app"></div>
    <script type="text/ruby">

      class App < React::Component::Base

        before_mount do
          @chat_service = ChatService.new do | message |
            state.messages! ((state.messages || []) + message)
          end
        end

        def render
          div do
            Nav(login: method(:login))
            if online?
              Messages messages: state.messages, chat_service: @chat_service
              InputBox chat_service: @chat_service
            end
          end
        end

        def login(user_name)
          state.messages! nil
          @chat_service.login(user_name)
        end

        def online?
          state.messages
        end

        def user_id
          @chat_service.user_id
        end

      end

      class Nav < React::Component::Base

        param :login, type: Proc

        before_mount do
          state.current_user_name! ""
          state.user_name_input! ""
        end

        def render
          div.navbar.navbar_inverse.navbar_fixed_top do
            div.container do
              div.navbar_header do
                div.reactrb_icon
                a.navbar_brand(href: "#", style: {color: "#00d8ff"}) { "Reactrb Chat Room " }
              end
              div.collapse.navbar_collapse(id: "navbar") do
                form.navbar_form.navbar_left(role: :search) do
                  div.form_group do
                    input.form_control(type: :text, value: state.user_name_input, placeholder: "Enter Your Handle").on(:change) do |e|
                      state.user_name_input! e.target.value
                    end.on(:key_down) do |e|
                      login! if valid_new_input? && e.key_code == 13
                    end
                    button.btn.btn_default(type: :button) { span.glyphicon.glyphicon_log_in }.on(:click) do
                      login!
                    end if valid_new_input?
                  end
                end.on(:submit) { |e| e.prevent_default }
              end
            end
          end
        end

        def valid_new_input?
          state.user_name_input.present? && state.user_name_input != state.current_user_name
        end

        def login!
          state.current_user_name! state.user_name_input
          params.login(state.user_name_input)
        end

      end

      class Messages < React::Component::Base

        param :messages, type: [Hash]
        param :chat_service, type: ChatService

        after_mount :scroll_to_bottom
        after_update :scroll_to_bottom

        def render
          div.container do
            params.messages.each do |message|
              Message user_id: params.chat_service.id, message: message
            end
          end
        end

        def scroll_to_bottom
          Element['html, body'].animate({scrollTop: Element[Document].height}, :slow)
        end

      end

      class Message < React::Component::Base

        param :message
        param :user_id

        def render
          div.row.alternating.message do
            div.col_sm_2 { sender }
            FormattedDiv class: "col-sm-8", html: params.message[:message]
            div.col_sm_2 { formatted_time }
          end
        end

        def formatted_time
          time = Time.at(params.message[:time])
          if Time.now < time+1.day
            time.strftime("%I:%M %p")
          elsif Time.now < time+7.days
            time.strftime("%A")
          else
            time.strftime("%D %I:%M %p")
          end
        end

        def sender
          if params.message[:from] == params.user_id
            "you: "
          else
            "#{params.message[:from]}:"
          end
        end

      end

      class InputBox < React::Component::Base

        param :chat_service, type: ChatService

        before_mount do
          state.composition! ""
          @mobile = `/Android|webOS|iPhone|iPad|iPod|BlackBerry/i.test(navigator.userAgent)`
        end

        def render
          div.row.form_group.input_box.navbar.navbar_inverse.navbar_fixed_bottom do
            div.col_sm_1.white {"Say Something: "}
            div.col_sm_5 do
              textarea(rows: rows, value: state.composition).on(:change) do |e|
                state.composition! e.target.value #unless is_send_key?(e)
              end.on(:key_down) do |e|
                send_message if is_send_key?(e)
              end.on(:key_press) do |e|
                e.prevent_default if is_send_key?(e)
              end
            end
            FormattedDiv class: "col-sm-5 white", html: state.composition
          end
        end

        def is_send_key?(e)
          (e.char_code == 13 || e.key_code == 13) && (@mobile || e.meta_key || e.ctrl_key)
        end

        def rows
          [state.composition.count("\n") + 1,20].min
        end

        def send_message
          params.chat_service.send(message: state.composition!(""), time: Time.now.to_i, from: params.chat_service.id)
        end

      end

      class FormattedDiv < React::Component::Base

        param :html, type: String
        #param className: "", type: String
        collect_other_params_as :attributes

        def render
          div(params.attributes) do
            div({dangerously_set_inner_HTML: { __html: %x{marked(#{params.html}, {sanitize: true })} }})
          end
        end
      end

      Element['#app'].render do
        App()
      end

    </script>
  </body>
</html>