Class: Celerity::ViewerConnection

Inherits:

Object

Defined in:

lib/celerity/viewer_connection.rb

Method Summary

• + (Object) create(host, port) Create a new connection to the given host/port.
• - (Object) close Close the connection.
• - (Object) image_data Get the currently rendered page as a Base64-encoded PNG image.
• - (ViewerConnection) initialize(socket) A new instance of ViewerConnection.
• - (Object) render_html(html, url) Tells the viewer to render the given HTML, with the given URL as base url.
• - (Object) save(path) Tells the viewer to save a screenshot of the current page to the given path.
• - (Object) save_render_tree(path) Tells the viewer to dump the render tree to the given path.

15
16
17

# File 'lib/celerity/viewer_connection.rb', line 15

def initialize(socket)
  @socket = socket
end

8
9
10
11
12
13

# File 'lib/celerity/viewer_connection.rb', line 8

def self.create(host, port)
  # if the connection fails, we won't spend time loading json
  socket = TCPSocket.new(host, port)
  require "json"
  new(socket)
end

61
62
63

# File 'lib/celerity/viewer_connection.rb', line 61

def close
  @socket.close rescue nil
end

51
52
53
54
55

# File 'lib/celerity/viewer_connection.rb', line 51

def image_data
  send_data('method' => 'image_data')
  data = read_data
  data['image'] || data['error']
end

23
24
25

# File 'lib/celerity/viewer_connection.rb', line 23

def render_html(html, url)
  send_data('method' => 'page_changed', 'html' => html, 'url' => url)
end

32
33
34

# File 'lib/celerity/viewer_connection.rb', line 32

def save(path)
  send_data('method' => 'save', 'path' => path)
end

42
43
44

# File 'lib/celerity/viewer_connection.rb', line 42

def save_render_tree(path)
  send_data('method' => 'save_render_tree', 'path' => path)
end