Module: ShenmeGUI

Defined in:
lib/shenmegui/utils.rb,
lib/shenmegui/core.rb,
lib/shenmegui/controls.rb,
lib/shenmegui/file_dialog.rb

Overview

用在控件的属性上，给Array String Hash加上钩子，监视其对自身的操作，一旦内容有改变立刻请求同步控件属性

Defined Under Namespace

Modules: Control, FileDialog Classes: FakeSocket

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.elements ⇒ Object (readonly)

Returns the value of attribute elements.



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# File 'lib/shenmegui/core.rb', line 20

def elements
  @elements
end

.socket ⇒ Object (readonly)

Returns the value of attribute socket.



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# File 'lib/shenmegui/core.rb', line 20

def socket
  @socket
end

.this ⇒ Object (readonly)

Returns the value of attribute this.



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# File 'lib/shenmegui/core.rb', line 20

def this
  @this
end

Class Method Details

.alert(msg) ⇒ Object 



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# File 'lib/shenmegui/core.rb', line 58

def alert(msg)
  data = {message: msg}
  @socket.send("alert:0->#{data.to_json}")
end

.app(params = {}, &block) ⇒ Object 



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# File 'lib/shenmegui/core.rb', line 42

def app(params={}, &block)
  raise "ShenmeGUI app has been initialized" if @initialized
  @initialized = true
  @fake_socket = FakeSocket.new
  @socket = @fake_socket
  body(params, &block)
  #找一个空闲的端口，不太好看
  temp_server = TCPServer.open('localhost', 0)
  @port = temp_server.addr[1]
  temp_server.close
  @title = params[:title] || 'Application'
  app_dir = File.expand_path($PROGRAM_NAME).match(/(.+)\/.+/)[1]
  File.open("#{app_dir}/index.html", 'w'){ |f| f.write @elements[0].render(port: @port, title: @title) }
  nil
end

.enable_debugging ⇒ Object 



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# File 'lib/shenmegui/core.rb', line 71

def enable_debugging
  Thread.new do
    ShenmeGUI.instance_eval do
      bind = binding
      while true
        begin
          command = $stdin.gets.chomp
          result = bind.eval command
          puts "=> #{result}"
        rescue
          puts "#{$!}"
        end
      end
    end

  end
end

.get_open_file_name(params = {}) ⇒ Object 



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# File 'lib/shenmegui/core.rb', line 63

def get_open_file_name(params={})
  FileDialog.get_open_file_name(params)
end

.get_save_file_name(params = {}) ⇒ Object 



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# File 'lib/shenmegui/core.rb', line 67

def get_save_file_name(params={})
  FileDialog.get_save_file_name(params)
end

.handle_message(msg) ⇒ Object 



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# File 'lib/shenmegui/core.rb', line 22

def handle_message(msg)
  match_data = msg.match(/(.+?):(\d+)(?:->)?({.+?})?/)
  command = match_data[1].to_sym
  id = match_data[2].to_i
  target = @elements[id]
  data = JSON.parse(match_data[3]) if match_data[3]
  case command
    when :sync
      target.update_properties(data)
    else
      event_lambda = target.events[command]
      @this = @elements[id]
      ShenmeGUI.instance_exec(&event_lambda) if event_lambda
      @this = nil

  end
  target
end

.open_browser ⇒ Object 



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# File 'lib/shenmegui/core.rb', line 89

def open_browser
  app_dir = File.expand_path($PROGRAM_NAME).match(/(.+)\/.+/)[1]
  index_path = "#{app_dir}/index.html"
  if Gem.win_platform?
    `start #{index_path}`
  elsif Gem.platforms[1].os == 'linux'
    `xdg-open #{index_path}`
  elsif Gem.platforms[1].os == 'darwin'
    `open #{index_path}`
  end
rescue
end

.start! ⇒ Object 



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# File 'lib/shenmegui/core.rb', line 102

def start!
  EM.run do
    EM::WebSocket.run(:host => "0.0.0.0", :port => @port) do |ws|
      ws.onopen do
        puts "WebSocket connection open"
        # 同时只能有一个连接，而正常连接关闭的时候会把@socket指向FakeSocket，如果建立连接的时候发现@socket是WebSocket，便把连接关掉
        @socket.close if @socket.respond_to? :close
        @socket = ws

        class << ws
          alias :original_send :send
          def send(msg)
            puts "Sent: #{msg}"
            original_send(msg)
          end
        end

        @elements.each do |e|
          e.sync_events
          e.sync
        end
        @socket.send(@fake_socket.messages.shift) until @fake_socket.messages.empty?
      end

      ws.onclose do
        puts "Connection closed"
        @socket = @fake_socket
      end

      ws.onmessage do |msg|
        puts "Recieved: #{msg}"
        handle_message msg
      end

    end
  end
rescue Interrupt
  puts 'bye~'
end