text: # Licensed to the Software Freedom Conservancy (SFC) under one
  # or more contributor license agreements.  See the NOTICE file
  # distributed with this work for additional information
  # regarding copyright ownership.  The SFC licenses this file
  # to you under the Apache License, Version 2.0 (the
  # "License"); you may not use this file except in compliance
  # with the License.  You may obtain a copy of the License at
  #
  #   http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing,
  # software distributed under the License is distributed on an
  # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  # KIND, either express or implied.  See the License for the
  # specific language governing permissions and limitations
  # under the License.
  from . import interaction
  
  from .interaction import Interaction
  from .mouse_button import MouseButton
  from .pointer_input import PointerInput
  
  from selenium.webdriver.remote.webelement import WebElement
  
  
  class PointerActions(Interaction):
  
      def __init__(self, source=None, duration=250):
          """
          Args:
          - source: PointerInput instance
          - duration: override the default 250 msecs of DEFAULT_MOVE_DURATION in source
          """
          if not source:
              source = PointerInput(interaction.POINTER_MOUSE, "mouse")
          self.source = source
          self._duration = duration
          super(PointerActions, self).__init__(source)
  
      def pointer_down(self, button=MouseButton.LEFT):
          self._button_action("create_pointer_down", button=button)
  
      def pointer_up(self, button=MouseButton.LEFT):
          self._button_action("create_pointer_up", button=button)
  
      def move_to(self, element, x=None, y=None):
          if not isinstance(element, WebElement):
              raise AttributeError("move_to requires a WebElement")
          if x or y:
              el_rect = element.rect
              left_offset = el_rect['width'] / 2
              top_offset = el_rect['height'] / 2
              left = -left_offset + (x or 0)
              top = -top_offset + (y or 0)
          else:
              left = 0
              top = 0
          self.source.create_pointer_move(origin=element, duration=self._duration, x=int(left), y=int(top))
          return self
  
      def move_by(self, x, y):
          self.source.create_pointer_move(origin=interaction.POINTER, duration=self._duration, x=int(x), y=int(y))
          return self
  
      def move_to_location(self, x, y):
          self.source.create_pointer_move(origin='viewport', duration=self._duration, x=int(x), y=int(y))
          return self
  
      def click(self, element=None):
          if element:
              self.move_to(element)
          self.pointer_down(MouseButton.LEFT)
          self.pointer_up(MouseButton.LEFT)
          return self
  
      def context_click(self, element=None):
          if element:
              self.move_to(element)
          self.pointer_down(MouseButton.RIGHT)
          self.pointer_up(MouseButton.RIGHT)
          return self
  
      def click_and_hold(self, element=None):
          if element:
              self.move_to(element)
          self.pointer_down()
          return self
  
      def release(self):
          self.pointer_up()
          return self
  
      def double_click(self, element=None):
          if element:
              self.move_to(element)
          self.pointer_down(MouseButton.LEFT)
          self.pointer_up(MouseButton.LEFT)
          self.pointer_down(MouseButton.LEFT)
          self.pointer_up(MouseButton.LEFT)
          return self
  
      def pause(self, duration=0):
          self.source.create_pause(duration)
          return self
  
      def _button_action(self, action, button=MouseButton.LEFT):
          meth = getattr(self.source, action)
          meth(button)
          return self
  