Class: Puppeteer::FrameManager

Inherits:
Object
  • Object
show all
Includes:
DebugPrint, EventCallbackable, IfPresent
Defined in:
lib/puppeteer/frame_manager.rb

Defined Under Namespace

Classes: FrameNotFoundError, NavigationError

Constant Summary collapse

UTILITY_WORLD_NAME = 
'__puppeteer_utility_world__'

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from EventCallbackable

#add_event_listener, #emit_event, #observe_first, #on_event, #remove_event_listener

Methods included from IfPresent

#if_present

Methods included from DebugPrint

#debug_print, #debug_puts

Constructor Details

#initialize(client, page, ignore_https_errors, timeout_settings) ⇒ FrameManager

Returns a new instance of FrameManager.

Parameters:



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# File 'lib/puppeteer/frame_manager.rb', line 15

def initialize(client, page, ignore_https_errors, timeout_settings)
  @client = client
  @page = page
  @network_manager = Puppeteer::NetworkManager.new(client, ignore_https_errors, self)
  @timeout_settings = timeout_settings

  # @type {!Map<string, !Frame>}
  @frames = {}

  @frame_naviigated_received = Set.new

  # @type {!Map<number, !ExecutionContext>}
  @context_id_to_context = {}

  # @type {!Set<string>}
  @isolated_worlds = Set.new

  # Keeps track of OOPIF targets/frames (target ID == frame ID for OOPIFs)
  # that are being initialized.
  @frames_pending_target_init = {}

  # Keeps track of frames that are in the process of being attached in #onFrameAttached.
  @frames_pending_attachment = {}

  setup_listeners(@client)
end

Instance Attribute Details

#client ⇒ Object (readonly)

Returns the value of attribute client.



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# File 'lib/puppeteer/frame_manager.rb', line 76

def client
  @client
end

#network_manager ⇒ Object (readonly)

Returns the value of attribute network_manager.



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# File 'lib/puppeteer/frame_manager.rb', line 106

def network_manager
  @network_manager
end

#timeout_settings ⇒ Object (readonly)

Returns the value of attribute timeout_settings.



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# File 'lib/puppeteer/frame_manager.rb', line 76

def timeout_settings
  @timeout_settings
end

Instance Method Details

#execution_context_by_id(context_id, session) ⇒ Object 



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# File 'lib/puppeteer/frame_manager.rb', line 469

def execution_context_by_id(context_id, session)
  key = "#{session.id}:#{context_id}"
  @context_id_to_context[key] or raise "INTERNAL ERROR: missing context with id = #{context_id}"
end

#frame(frame_id) ⇒ ?Frame

Parameters:

  • frameId (!string)

Returns:



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# File 'lib/puppeteer/frame_manager.rb', line 260

def frame(frame_id)
  @frames[frame_id]
end

#frames ⇒ !Array<!Frame>

Returns:



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# File 'lib/puppeteer/frame_manager.rb', line 254

def frames
  @frames.values
end

#handle_attached_to_target(target) ⇒ Object

Parameters:

  • event (Hash) 


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# File 'lib/puppeteer/frame_manager.rb', line 184

def handle_attached_to_target(target)
  return if target.target_info.type != 'iframe'

  frame = @frames[target.target_info.target_id]
  session = target.session
  frame&.send(:update_client, session)
  setup_listeners(session)
  async_init(target.target_info.target_id, session)
end

#handle_detached_from_target(target) ⇒ Object

Parameters:

  • event (Hash) 


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# File 'lib/puppeteer/frame_manager.rb', line 195

def handle_detached_from_target(target)
  frame = @frames[target.target_id]
  if frame && frame.oop_frame?
    # When an OOP iframe is removed from the page, it
    # will only get a Target.detachedFromTarget event.
    remove_frame_recursively(frame)
  end
end

#handle_execution_context_created(context_payload, session) ⇒ Object

Parameters:

  • context_payload (Hash) 


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# File 'lib/puppeteer/frame_manager.rb', line 409

def handle_execution_context_created(context_payload, session)
  frame = if_present(context_payload.dig('auxData', 'frameId')) { |frame_id| @frames[frame_id] }

  world = nil
  if frame
    # commented out the original implementation for allowing us to use Frame#evaluate on OOP iframe.
    #
    # # Only care about execution contexts created for the current session.
    # return if @client != session

    if context_payload.dig('auxData', 'isDefault')
      world = frame.main_world
    elsif context_payload['name'] == UTILITY_WORLD_NAME && !frame.puppeteer_world.has_context?
      # In case of multiple sessions to the same target, there's a race between
      # connections so we might end up creating multiple isolated worlds.
      # We can use either.
      world = frame.puppeteer_world
    end
  end

  if context_payload.dig('auxData', 'type') == 'isolated'
    @isolated_worlds << context_payload['name']
  end

  context = Puppeteer::ExecutionContext.new(frame&._client || @client, context_payload, world)
  if world
    world.context = context
  end
  key = "#{session.id}:#{context_payload['id']}"
  @context_id_to_context[key] = context
end

#handle_execution_context_destroyed(execution_context_id, session) ⇒ Object

Parameters:

  • execution_context_id (Integer)
  • session (Puppeteer::CDPSEssion) 


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# File 'lib/puppeteer/frame_manager.rb', line 443

def handle_execution_context_destroyed(execution_context_id, session)
  key = "#{session.id}:#{execution_context_id}"
  context = @context_id_to_context[key]
  return unless context
  @context_id_to_context.delete(key)
  if context.world
    context.world.delete_context(execution_context_id)
  end
end

#handle_execution_contexts_cleared(session) ⇒ Object

Parameters:



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# File 'lib/puppeteer/frame_manager.rb', line 454

def handle_execution_contexts_cleared(session)
  @context_id_to_context.select! do |execution_context_id, context|
    # Make sure to only clear execution contexts that belong
    # to the current session.
    if context.client != session
      true # keep
    else
      if context.world
        context.world.delete_context(execution_context_id)
      end
      false # remove
    end
  end
end

#handle_frame_attached(session, frame_id, parent_frame_id) ⇒ Object

Parameters:

Raises:



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# File 'lib/puppeteer/frame_manager.rb', line 267

def handle_frame_attached(session, frame_id, parent_frame_id)
  if @frames.has_key?(frame_id)
    frame = @frames[frame_id]
    if session && frame.oop_frame?
      # If an OOP iframes becomes a normal iframe again
      # it is first attached to the parent page before
      # the target is removed.
      frame.send(:update_client, session)
    end
    return
  end
  parent_frame = @frames[parent_frame_id]
  if parent_frame
    attach_child_frame(parent_frame, parent_frame_id, frame_id, session)
    return
  end

  if @frames_pending_target_init[parent_frame_id]
    @frames_pending_attachment[frame_id] ||= resolvable_future
    @frames_pending_target_init[parent_frame_id].then do |_|
      attach_child_frame(@frames[parent_frame_id], parent_frame_id, frame_id, session)
      @frames_pending_attachment.delete(frame_id)&.fulfill(nil)
    end
    return
  end

  raise FrameNotFoundError.new("Parent frame #{parent_frame_id} not found.")
end

#handle_frame_detached(frame_id, reason) ⇒ Object

Parameters:

  • frame_id (String)
  • reason (String) 


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# File 'lib/puppeteer/frame_manager.rb', line 393

def handle_frame_detached(frame_id, reason)
  frame = @frames[frame_id]
  if reason == 'remove'
    # Only remove the frame if the reason for the detached event is
    # an actual removement of the frame.
    # For frames that become OOP iframes, the reason would be 'swap'.
    if frame
      remove_frame_recursively(frame)
    end
  elsif reason == 'swap'
    emit_event(FrameManagerEmittedEvents::FrameSwapped, frame)
  end
end

#handle_frame_navigated(frame_payload) ⇒ Object

Parameters:

  • frame_payload (Hash) 


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# File 'lib/puppeteer/frame_manager.rb', line 310

def handle_frame_navigated(frame_payload)
  frame_id = frame_payload['id']
  is_main_frame = !frame_payload['parentId']


  if @frames_pending_attachment[frame_id]
    @frames_pending_attachment[frame_id].then do |_|
      frame = is_main_frame ? @main_frame : @frames[frame_id]
      reattach_frame(frame, frame_id, is_main_frame, frame_payload)
    end
  else
    frame = is_main_frame ? @main_frame : @frames[frame_id]
    reattach_frame(frame, frame_id, is_main_frame, frame_payload)
  end
end

#handle_frame_navigated_within_document(frame_id, url) ⇒ Object

Parameters:

  • frame_id (String)
  • url (String) 


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# File 'lib/puppeteer/frame_manager.rb', line 383

def handle_frame_navigated_within_document(frame_id, url)
  frame = @frames[frame_id]
  return unless frame
  frame.navigated_within_document(url)
  emit_event(FrameManagerEmittedEvents::FrameNavigatedWithinDocument, frame)
  emit_event(FrameManagerEmittedEvents::FrameNavigated, frame)
end

#handle_frame_started_loading(frame_id) ⇒ Object

Parameters:

  • frame_id (String) 


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# File 'lib/puppeteer/frame_manager.rb', line 213

def handle_frame_started_loading(frame_id)
  frame = @frames[frame_id]
  return if !frame
  frame.handle_loading_started
end

#handle_frame_stopped_loading(frame_id) ⇒ Object

Parameters:

  • frame_id (String) 


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# File 'lib/puppeteer/frame_manager.rb', line 220

def handle_frame_stopped_loading(frame_id)
  frame = @frames[frame_id]
  return if !frame
  frame.handle_loading_stopped
  emit_event(FrameManagerEmittedEvents::LifecycleEvent, frame)
end

#handle_frame_tree(session, frame_tree) ⇒ Object

Parameters:



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# File 'lib/puppeteer/frame_manager.rb', line 229

def handle_frame_tree(session, frame_tree)
  if frame_tree['frame']['parentId']
    handle_frame_attached(session, frame_tree['frame']['id'], frame_tree['frame']['parentId'])
  end
  unless @frame_naviigated_received.delete?(frame_tree['frame']['id'])
    handle_frame_navigated(frame_tree['frame'])
  end
  return if !frame_tree['childFrames']

  frame_tree['childFrames'].each do |child|
    handle_frame_tree(session, child)
  end
end

#handle_lifecycle_event(event) ⇒ Object

Parameters:

  • event (Hash) 


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# File 'lib/puppeteer/frame_manager.rb', line 205

def handle_lifecycle_event(event)
  frame = @frames[event['frameId']]
  return if !frame
  frame.handle_lifecycle_event(event['loaderId'], event['name'])
  emit_event(FrameManagerEmittedEvents::LifecycleEvent, frame)
end

#main_frame ⇒ !Frame

Returns:



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# File 'lib/puppeteer/frame_manager.rb', line 249

def main_frame
  @main_frame
end

#navigate_frame(frame, url, referer: nil, timeout: nil, wait_until: nil) ⇒ Puppeteer::HTTPResponse

Parameters:

  • frame (Puppeteer::Frame)
  • url (String)
  • options (!{referer?: string, timeout?: number, waitUntil?: string|!Array<string>}=)

Returns:



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# File 'lib/puppeteer/frame_manager.rb', line 114

def navigate_frame(frame, url, referer: nil, timeout: nil, wait_until: nil)
  assert_no_legacy_navigation_options(wait_until: wait_until)

  navigate_params = {
    url: url,
    referer: referer || @network_manager.extra_http_headers['referer'],
    frameId: frame.id,
  }.compact
  option_wait_until = wait_until || ['load']
  option_timeout = timeout || @timeout_settings.navigation_timeout

  watcher = Puppeteer::LifecycleWatcher.new(self, frame, option_wait_until, option_timeout)
  ensure_new_document_navigation = false

  begin
    navigate = future do
      result = @client.send_message('Page.navigate', navigate_params)
      loader_id = result['loaderId']
      ensure_new_document_navigation = !!loader_id
      if result['errorText']
        raise NavigationError.new("#{result['errorText']} at #{url}")
      end
    end
    await_any(
      navigate,
      watcher.timeout_or_termination_promise,
    )

    await_any(
      watcher.timeout_or_termination_promise,
      if ensure_new_document_navigation
        watcher.new_document_navigation_promise
      else
        watcher.same_document_navigation_promise
      end,
    )

    watcher.navigation_response
  rescue Puppeteer::TimeoutError => err
    raise NavigationError.new(err)
  ensure
    watcher.dispose
  end
end

#page ⇒ !Puppeteer.Page

Returns:



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# File 'lib/puppeteer/frame_manager.rb', line 244

def page
  @page
end

#wait_for_frame_navigation(frame, timeout: nil, wait_until: nil) ⇒ Puppeteer::HTTPResponse

Parameters:

  • timeout (number|nil) (defaults to: nil)
  • wait_until (string|nil) (defaults to: nil) —

    ‘load’ | ‘domcontentloaded’ | ‘networkidle0’ | ‘networkidle2’

Returns:



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# File 'lib/puppeteer/frame_manager.rb', line 162

def wait_for_frame_navigation(frame, timeout: nil, wait_until: nil)
  assert_no_legacy_navigation_options(wait_until: wait_until)

  option_wait_until = wait_until || ['load']
  option_timeout = timeout || @timeout_settings.navigation_timeout
  watcher = Puppeteer::LifecycleWatcher.new(self, frame, option_wait_until, option_timeout)
  begin
    await_any(
      watcher.timeout_or_termination_promise,
      watcher.same_document_navigation_promise,
      watcher.new_document_navigation_promise,
    )

    watcher.navigation_response
  rescue Puppeteer::TimeoutError => err
    raise NavigationError.new(err)
  ensure
    watcher.dispose
  end
end