Method: React::Component::API#get_react_element

Defined in:
lib/react/component/api.rb

#get_react_element(arg, &block) ⇒ Object Also known as: gre 



70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
 
# File 'lib/react/component/api.rb', line 70

def get_react_element(arg, &block)
  if block_given?
    # execute block, fetch last element from buffer
    %x{
      let last_buffer_length = Opal.React.render_buffer[Opal.React.render_buffer.length - 1].length;
      let last_buffer_element = Opal.React.render_buffer[Opal.React.render_buffer.length - 1][last_buffer_length - 1];
      block.$call();
      // console.log("get_react_element popping", Opal.React.render_buffer, Opal.React.render_buffer.toString())
      let new_element = Opal.React.render_buffer[Opal.React.render_buffer.length - 1].pop();
      if (last_buffer_element === new_element) { #{raise "Block did not create any React element!"} }
      return new_element;
    }
  else
    # element was rendered before being passed as arg
    # fetch last element from buffer
    # `console.log("get_react_element popping", Opal.React.render_buffer, Opal.React.render_buffer.toString())`
    `Opal.React.render_buffer[Opal.React.render_buffer.length - 1].pop()`
  end
end