Class: WatchDoge::Worker

Inherits:
Object
  • Object
show all
Defined in:
lib/watchdoge/worker.rb

Instance Method Summary collapse

Constructor Details

#initialize(uid, options) ⇒ Worker

options:

1. width: browser's width, default to 1280
2. height: browser's height, default to 768
3. http_client: instance of Selenium::WebDriver::Remote::Http
4. all acceptable arguments of Watir::Browser class



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# File 'lib/watchdoge/worker.rb', line 23

def initialize uid, options
  @http = Selenium::WebDriver::Remote::Http::Default.new

  # HTTP timeout default to 120 sec
  @http.read_timeout = options.delete(:timeout)

  @browser = options[:browser]

  @uid = uid

  options = {
    # Selenium HTTP configuration
    http_client: @http
  }.merge(options).merge(default_browser_profile)

  # intall required version driver
  WatchDoge::WebdriverManager.new @browser
  @core = WatchDoge.configuration.engine.new @browser, options

  # for generate uri hash
  @landed_page = nil

  # autosaving cookies while worker closed
  @cookie_autosave = false

  # flag for cookies loaded
  @cookie_loaded = false

  # width/height
  @width = options[:width]
  @height = options[:height]
  @core.window.resize_to @width, @height
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_name, *args) ⇒ Object (private)

try delegate all missing methods to selenium



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# File 'lib/watchdoge/worker.rb', line 147

def method_missing(method_name, *args)
  result = @core.__send__(method_name, *args)

  result
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/watchdoge/worker.rb', line 63

def close
  save_cookie
  @core.close
end

#fullpage_screenshot(**kwargs) ⇒ Object 



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# File 'lib/watchdoge/worker.rb', line 57

def fullpage_screenshot **kwargs
  resize_by_viewport(kwargs) do |resize|
    return resize.screenshot
  end
end

#goto(uri) ⇒ Object 



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# File 'lib/watchdoge/worker.rb', line 68

def goto uri
  @core.goto uri

  @landed_page = uri

  load_cookie unless cookie_loaded?

  @core.refresh
end

#resize_by_viewport(**kwargs) {|@core| ... } ⇒ Object

Yields:

  • (@core) 


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# File 'lib/watchdoge/worker.rb', line 78

def resize_by_viewport **kwargs
  width = (kwargs.delete :width) || @core.body.width
  height = (kwargs.delete :height) || @core.body.height

  # TODO: improve "wait" logic
  sleep_sec = kwargs.delete :wait

  # has element selector
  unless kwargs.empty?
    sleep 0.5
    target = @core.element(kwargs)
    width = [target.width, @core.body.width].max
    height = [target.height, @core.body.height].max
  end

  @core.window.resize_to [width, 5000].min, [height, 15000].min

  # TODO: improve "wait" logic
  puts "  -> wait rendering #{sleep_sec} sec" if sleep_sec
  sleep sleep_sec.to_i

  yield(@core)
  @core.window.resize_to @width, @height
end