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# Copyright 2014 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""An adapter to access the local display facade."""
import logging
import tempfile
from PIL import Image
from autotest_lib.client.common_lib import error
from autotest_lib.client.cros.multimedia import display_facade_native
from autotest_lib.client.cros.multimedia import facade_resource
from autotest_lib.client.cros.multimedia.display_info import DisplayInfo
from autotest_lib.client.cros.power import sys_power
class DisplayFacadeLocalAdapter(object):
"""DisplayFacadeLocalAdapter is an adapter to control the local display.
Methods with non-native-type arguments go to this class and do some
conversion; otherwise, go to the DisplayFacadeNative class.
def __init__(self, chrome):
"""Construct a DisplayFacadeLocalAdapter.
@param chrome: A Chrome object.
# Create a DisplayFacadeNative object as a component such that this
# class can expose and manipulate its interfaces.
self._display_component = display_facade_native.DisplayFacadeNative(
def get_external_connector_name(self):
"""Gets the name of the external output connector.
@return The external output connector name as a string; False if nothing
is connected.
return self._display_component.get_external_connector_name()
def get_internal_connector_name(self):
"""Gets the name of the internal output connector.
@return The internal output connector name as a string; False if nothing
is connected.
return self._display_component.get_internal_connector_name()
def move_to_display(self, display_id):
"""Moves the current window to the indicated display.
@param display_id: The id of the indicated display.
def create_window(self, url='chrome://newtab'):
"""Creates a new window from API.
@param url: Optional URL for the new window.
@return Identifier for the new window.
return self._display_component.create_window(url)
def update_window(self, window_id, state=None, bounds=None):
"""Updates an existing window using the API.
@param window_id: Identifier for the window to update.
@param state: Optional string to set the state such as 'normal',
'maximized', or 'fullscreen'.
@param bounds: Optional dictionary with keys top, left, width, and
height to reposition the window.
self._display_component.update_window(window_id, state, bounds)
def set_fullscreen(self, is_fullscreen):
"""Sets the current window to full screen.
@param is_fullscreen: True or False to indicate fullscreen state.
@return True if success, False otherwise.
return self._display_component.set_fullscreen(is_fullscreen)
def load_url(self, url):
"""Loads the given url in a new tab. The new tab will be active.
@param url: The url to load as a string.
@return a str, the tab descriptor of the opened tab.
return self._display_component.load_url(url)
def load_calibration_image(self, resolution):
"""Load a full screen calibration image from the HTTP server.
@param resolution: A tuple (width, height) of resolution.
@return a str, the tab descriptor of the opened tab.
return self._display_component.load_calibration_image(resolution)
def load_color_sequence(self, tab_descriptor, color_sequence):
"""Displays a series of colors on full screen on the tab.
tab_descriptor is returned by any open tab API of display facade.
tab_descriptor = load_url('about:blank')
load_color_sequence(tab_descriptor, color)
@param tab_descriptor: Indicate which tab to test.
@param color_sequence: An integer list for switching colors.
@return A list of the timestamp for each switch.
return self._display_component.load_color_sequence(tab_descriptor,
def close_tab(self, tab_descriptor):
"""Disables fullscreen and closes the tab of the given tab descriptor.
tab_descriptor is returned by any open tab API of display facade.
tab_descriptor = load_url(url)
tab_descriptor = load_calibration_image(resolution)
@param tab_descriptor: Indicate which tab to close.
def is_mirrored_enabled(self):
"""Checks the mirrored state.
@return True if mirrored mode is enabled.
return self._display_component.is_mirrored_enabled()
def set_mirrored(self, is_mirrored):
"""Sets mirrored mode.
@param is_mirrored: True or False to indicate mirrored state.
@throws error.TestError when the call fails.
if not self._display_component.set_mirrored(is_mirrored):
raise error.TestError('Failed to set_mirrored(%s)' % is_mirrored)
def is_display_primary(self, internal=True):
"""Checks if internal screen is primary display.
@param internal: is internal/external screen primary status requested
@return boolean True if internal display is primary.
return self._display_component.is_display_primary(internal)
def suspend_resume(self, suspend_time=10):
"""Suspends the DUT for a given time in second.
@param suspend_time: Suspend time in second.
except sys_power.SpuriousWakeupError as e:
# Log suspend/resume errors but continue the test.
logging.error('suspend_resume error: %s', str(e))
def suspend_resume_bg(self, suspend_time=10):
"""Suspends the DUT for a given time in second in the background.
@param suspend_time: Suspend time in second, default: 10s.
def wait_external_display_connected(self, display):
"""Waits for the specified display to be connected.
@param display: The display name as a string, like 'HDMI1', or
False if no external display is expected.
@return: True if display is connected; False otherwise.
return self._display_component.wait_external_display_connected(display)
def hide_cursor(self):
"""Hides mouse cursor by sending a keystroke."""
def hide_typing_cursor(self):
"""Hides typing cursor by moving outside typing bar."""
def set_content_protection(self, state):
"""Sets the content protection of the external screen.
@param state: One of the states 'Undesired', 'Desired', or 'Enabled'
def get_content_protection(self):
"""Gets the state of the content protection.
@param output: The output name as a string.
@return: A string of the state, like 'Undesired', 'Desired', or 'Enabled'.
False if not supported.
return self._display_component.get_content_protection()
def _take_screenshot(self, screenshot_func):
"""Gets screenshot from frame buffer.
@param screenshot_func: function to take a screenshot and save the image
to specified path. Usage: screenshot_func(path).
@return: An Image object.
Notice that the returned image may not be in RGB format,
depending on PIL implementation.
with tempfile.NamedTemporaryFile(suffix='.png') as f:
def capture_internal_screen(self):
"""Captures the internal screen framebuffer.
@return: An Image object.
screenshot_func = self._display_component.take_internal_screenshot
return self._take_screenshot(screenshot_func)
# TODO(ihf): This function needs to be fixed for multiple screens.
def capture_external_screen(self):
"""Captures the external screen framebuffer.
@return: An Image object.
screenshot_func = self._display_component.take_external_screenshot
return self._take_screenshot(screenshot_func)
def capture_calibration_image(self):
"""Captures the calibration image.
@return: An Image object.
screenshot_func = self._display_component.save_calibration_image
return self._take_screenshot(screenshot_func)
def get_external_resolution(self):
"""Gets the resolution of the external screen.
@return The resolution tuple (width, height) or None if no external
display is connected.
resolution = self._display_component.get_external_resolution()
return tuple(resolution) if resolution else None
def get_internal_resolution(self):
"""Gets the resolution of the internal screen.
@return The resolution tuple (width, height) or None if no internal
resolution = self._display_component.get_internal_resolution()
return tuple(resolution) if resolution else None
def set_resolution(self, display_id, width, height):
"""Sets the resolution on the specified display.
@param display_id: id of the display to set resolutions for.
@param width: width of the resolution
@param height: height of the resolution
self._display_component.set_resolution(display_id, width, height)
def get_display_info(self):
"""Gets the information of all the displays that are connected to the
@return: list of object DisplayInfo for display informtion
return map(DisplayInfo, self._display_component.get_display_info())
def get_display_modes(self, display_id):
"""Gets the display modes of the specified display.
@param display_id: id of the display to get modes from; the id is from
the DisplayInfo list obtained by get_display_info().
@return: list of DisplayMode dicts.
return self._display_component.get_display_modes(display_id)
def get_available_resolutions(self, display_id):
"""Gets the resolutions from the specified display.
@param display_id: id of the display to get modes from.
@return a list of (width, height) tuples.
return [tuple(r) for r in
def get_display_rotation(self, display_id):
"""Gets the display rotation for the specified display.
@param display_id: id of the display to get modes from.
@return: Degree of rotation.
return self._display_component.get_display_rotation(display_id)
def set_display_rotation(self, display_id, rotation,
delay_before_rotation=0, delay_after_rotation=0):
"""Sets the display rotation for the specified display.
@param display_id: id of the display to get modes from.
@param rotation: degree of rotation
@param delay_before_rotation: time in second for delay before rotation
@param delay_after_rotation: time in second for delay after rotation
display_id, rotation, delay_before_rotation,
def get_internal_display_id(self):
"""Gets the internal display id.
@return the id of the internal display.
return self._display_component.get_internal_display_id()
def get_first_external_display_id(self):
"""Gets the first external display id.
@return the id of the first external display; -1 if not found.
return self._display_component.get_first_external_display_id()
def reset_connector_if_applicable(self, connector_type):
"""Resets Type-C video connector from host end if applicable.
It's the workaround sequence since sometimes Type-C dongle becomes
corrupted and needs to be re-plugged.
@param connector_type: A string, like "VGA", "DVI", "HDMI", or "DP".
return self._display_component.reset_connector_if_applicable(