Class: Capybara::Poltergeist::Client

Inherits:
Object
  • Object
show all
Defined in:
lib/capybara/poltergeist/client.rb

Constant Summary collapse

PHANTOMJS_SCRIPT = 
File.expand_path('../client/compiled/main.js', __FILE__)
PHANTOMJS_VERSION = 
'1.4.1'
PHANTOMJS_NAME = 
'phantomjs'

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(port, inspector = nil, path = nil) ⇒ Client

Returns a new instance of Client.



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# File 'lib/capybara/poltergeist/client.rb', line 15

def initialize(port, inspector = nil, path = nil)
  @port      = port
  @inspector = inspector
  @path      = path || PHANTOMJS_NAME

  pid = Process.pid
  at_exit { stop if Process.pid == pid }
end

Instance Attribute Details

#inspector ⇒ Object (readonly)

Returns the value of attribute inspector.



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# File 'lib/capybara/poltergeist/client.rb', line 13

def inspector
  @inspector
end

#path ⇒ Object (readonly)

Returns the value of attribute path.



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# File 'lib/capybara/poltergeist/client.rb', line 13

def path
  @path
end

#pid ⇒ Object (readonly)

Returns the value of attribute pid.



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# File 'lib/capybara/poltergeist/client.rb', line 13

def pid
  @pid
end

#port ⇒ Object (readonly)

Returns the value of attribute port.



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# File 'lib/capybara/poltergeist/client.rb', line 13

def port
  @port
end

Class Method Details

.start(*args) ⇒ Object 



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# File 'lib/capybara/poltergeist/client.rb', line 7

def self.start(*args)
  client = new(*args)
  client.start
  client
end

Instance Method Details

#command ⇒ Object 



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# File 'lib/capybara/poltergeist/client.rb', line 47

def command
  @command ||= begin
    parts = [path]

    if inspector
      parts << "--remote-debugger-port=#{inspector.port}"
      parts << "--remote-debugger-autorun=yes"
    end

    parts << PHANTOMJS_SCRIPT
    parts << port
    parts
  end
end

#restart ⇒ Object 



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# File 'lib/capybara/poltergeist/client.rb', line 42

def restart
  stop
  start
end

#start ⇒ Object 



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# File 'lib/capybara/poltergeist/client.rb', line 24

def start
  check_phantomjs_version
  @pid = Spawn.spawn(*command)
end

#stop ⇒ Object 



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# File 'lib/capybara/poltergeist/client.rb', line 29

def stop
  if pid
    begin
      Process.kill('TERM', pid)
      Process.wait(pid)
    rescue Errno::ESRCH, Errno::ECHILD
      # Zed's dead, baby
    end

    @pid = nil
  end
end