Module emulation

This domain emulates different environments for the page.

Structs

• ClearDeviceMetricsOverrideParams
  Clears the overridden device metrics. clearDeviceMetricsOverride
• ClearDeviceMetricsOverrideReturns
  Clears the overridden device metrics. clearDeviceMetricsOverride
• ClearDevicePostureOverrideParams
  Clears a device posture override set with either setDeviceMetricsOverride() or setDevicePostureOverride() and starts using posture information from the platform again. Does nothing if no override is set. clearDevicePostureOverride
• ClearDevicePostureOverrideReturns
  Clears a device posture override set with either setDeviceMetricsOverride() or setDevicePostureOverride() and starts using posture information from the platform again. Does nothing if no override is set. clearDevicePostureOverride
• ClearGeolocationOverrideParams
  Clears the overridden Geolocation Position and Error. clearGeolocationOverride
• ClearGeolocationOverrideReturns
  Clears the overridden Geolocation Position and Error. clearGeolocationOverride
• ClearIdleOverrideParams
  Clears Idle state overrides. clearIdleOverride
• ClearIdleOverrideReturns
  Clears Idle state overrides. clearIdleOverride
• DevicePosture
• DevicePostureBuilder
• DisplayFeature
• DisplayFeatureBuilder
• EventVirtualTimeBudgetExpired
  Notification sent after the virtual time budget for the current VirtualTimePolicy has run out. virtualTimeBudgetExpired
• GetOverriddenSensorInformationParams
• GetOverriddenSensorInformationParamsBuilder
• GetOverriddenSensorInformationReturns
• GetOverriddenSensorInformationReturnsBuilder
• MediaFeature
• MediaFeatureBuilder
• PressureMetadata
• PressureMetadataBuilder
• ResetPageScaleFactorParams
  Requests that page scale factor is reset to initial values. resetPageScaleFactor
• ResetPageScaleFactorReturns
  Requests that page scale factor is reset to initial values. resetPageScaleFactor
• ScreenOrientation
  Screen orientation. ScreenOrientation
• ScreenOrientationBuilder
• SensorMetadata
• SensorMetadataBuilder
• SensorReading
• SensorReadingBuilder
• SensorReadingQuaternion
• SensorReadingQuaternionBuilder
• SensorReadingSingle
• SensorReadingSingleBuilder
• SensorReadingXyz
• SensorReadingXyzBuilder
• SetAutoDarkModeOverrideParams
  Automatically render all web contents using a dark theme. setAutoDarkModeOverride
• SetAutoDarkModeOverrideParamsBuilder
• SetAutoDarkModeOverrideReturns
  Automatically render all web contents using a dark theme. setAutoDarkModeOverride
• SetAutomationOverrideParams
  Allows overriding the automation flag. setAutomationOverride
• SetAutomationOverrideParamsBuilder
• SetAutomationOverrideReturns
  Allows overriding the automation flag. setAutomationOverride
• SetCpuThrottlingRateParams
  Enables CPU throttling to emulate slow CPUs. setCPUThrottlingRate
• SetCpuThrottlingRateParamsBuilder
• SetCpuThrottlingRateReturns
  Enables CPU throttling to emulate slow CPUs. setCPUThrottlingRate
• SetDefaultBackgroundColorOverrideParams
  Sets or clears an override of the default background color of the frame. This override is used if the content does not specify one. setDefaultBackgroundColorOverride
• SetDefaultBackgroundColorOverrideParamsBuilder
• SetDefaultBackgroundColorOverrideReturns
  Sets or clears an override of the default background color of the frame. This override is used if the content does not specify one. setDefaultBackgroundColorOverride
• SetDeviceMetricsOverrideParams
  Overrides the values of device screen dimensions (window.screen.width, window.screen.height, window.innerWidth, window.innerHeight, and “device-width”/“device-height”-related CSS media query results). setDeviceMetricsOverride
• SetDeviceMetricsOverrideParamsBuilder
• SetDeviceMetricsOverrideReturns
  Overrides the values of device screen dimensions (window.screen.width, window.screen.height, window.innerWidth, window.innerHeight, and “device-width”/“device-height”-related CSS media query results). setDeviceMetricsOverride
• SetDevicePostureOverrideParams
  Start reporting the given posture value to the Device Posture API. This override can also be set in setDeviceMetricsOverride(). setDevicePostureOverride
• SetDevicePostureOverrideParamsBuilder
• SetDevicePostureOverrideReturns
  Start reporting the given posture value to the Device Posture API. This override can also be set in setDeviceMetricsOverride(). setDevicePostureOverride
• SetDisabledImageTypesParams
• SetDisabledImageTypesParamsBuilder
• SetDisabledImageTypesReturns
• SetDocumentCookieDisabledParams
• SetDocumentCookieDisabledParamsBuilder
• SetDocumentCookieDisabledReturns
• SetEmitTouchEventsForMouseParams
• SetEmitTouchEventsForMouseParamsBuilder
• SetEmitTouchEventsForMouseReturns
• SetEmulatedMediaParams
  Emulates the given media type or media feature for CSS media queries. setEmulatedMedia
• SetEmulatedMediaParamsBuilder
• SetEmulatedMediaReturns
  Emulates the given media type or media feature for CSS media queries. setEmulatedMedia
• SetEmulatedVisionDeficiencyParams
  Emulates the given vision deficiency. setEmulatedVisionDeficiency
• SetEmulatedVisionDeficiencyParamsBuilder
• SetEmulatedVisionDeficiencyReturns
  Emulates the given vision deficiency. setEmulatedVisionDeficiency
• SetFocusEmulationEnabledParams
  Enables or disables simulating a focused and active page. setFocusEmulationEnabled
• SetFocusEmulationEnabledParamsBuilder
• SetFocusEmulationEnabledReturns
  Enables or disables simulating a focused and active page. setFocusEmulationEnabled
• SetGeolocationOverrideParams
  Overrides the Geolocation Position or Error. Omitting any of the parameters emulates position unavailable. setGeolocationOverride
• SetGeolocationOverrideParamsBuilder
• SetGeolocationOverrideReturns
  Overrides the Geolocation Position or Error. Omitting any of the parameters emulates position unavailable. setGeolocationOverride
• SetHardwareConcurrencyOverrideParams
• SetHardwareConcurrencyOverrideParamsBuilder
• SetHardwareConcurrencyOverrideReturns
• SetIdleOverrideParams
  Overrides the Idle state. setIdleOverride
• SetIdleOverrideParamsBuilder
• SetIdleOverrideReturns
  Overrides the Idle state. setIdleOverride
• SetLocaleOverrideParams
  Overrides default host system locale with the specified one. setLocaleOverride
• SetLocaleOverrideParamsBuilder
• SetLocaleOverrideReturns
  Overrides default host system locale with the specified one. setLocaleOverride
• SetPageScaleFactorParams
  Sets a specified page scale factor. setPageScaleFactor
• SetPageScaleFactorParamsBuilder
• SetPageScaleFactorReturns
  Sets a specified page scale factor. setPageScaleFactor
• SetPressureSourceOverrideEnabledParams
  Overrides a pressure source of a given type, as used by the Compute Pressure API, so that updates to PressureObserver.observe() are provided via setPressureStateOverride instead of being retrieved from platform-provided telemetry data. setPressureSourceOverrideEnabled
• SetPressureSourceOverrideEnabledParamsBuilder
• SetPressureSourceOverrideEnabledReturns
  Overrides a pressure source of a given type, as used by the Compute Pressure API, so that updates to PressureObserver.observe() are provided via setPressureStateOverride instead of being retrieved from platform-provided telemetry data. setPressureSourceOverrideEnabled
• SetPressureStateOverrideParams
  Provides a given pressure state that will be processed and eventually be delivered to PressureObserver users. |source| must have been previously overridden by setPressureSourceOverrideEnabled. setPressureStateOverride
• SetPressureStateOverrideParamsBuilder
• SetPressureStateOverrideReturns
  Provides a given pressure state that will be processed and eventually be delivered to PressureObserver users. |source| must have been previously overridden by setPressureSourceOverrideEnabled. setPressureStateOverride
• SetScriptExecutionDisabledParams
  Switches script execution in the page. setScriptExecutionDisabled
• SetScriptExecutionDisabledParamsBuilder
• SetScriptExecutionDisabledReturns
  Switches script execution in the page. setScriptExecutionDisabled
• SetScrollbarsHiddenParams
• SetScrollbarsHiddenParamsBuilder
• SetScrollbarsHiddenReturns
• SetSensorOverrideEnabledParams
  Overrides a platform sensor of a given type. If |enabled| is true, calls to Sensor.start() will use a virtual sensor as backend rather than fetching data from a real hardware sensor. Otherwise, existing virtual sensor-backend Sensor objects will fire an error event and new calls to Sensor.start() will attempt to use a real sensor instead. setSensorOverrideEnabled
• SetSensorOverrideEnabledParamsBuilder
• SetSensorOverrideEnabledReturns
  Overrides a platform sensor of a given type. If |enabled| is true, calls to Sensor.start() will use a virtual sensor as backend rather than fetching data from a real hardware sensor. Otherwise, existing virtual sensor-backend Sensor objects will fire an error event and new calls to Sensor.start() will attempt to use a real sensor instead. setSensorOverrideEnabled
• SetSensorOverrideReadingsParams
  Updates the sensor readings reported by a sensor type previously overridden by setSensorOverrideEnabled. setSensorOverrideReadings
• SetSensorOverrideReadingsParamsBuilder
• SetSensorOverrideReadingsReturns
  Updates the sensor readings reported by a sensor type previously overridden by setSensorOverrideEnabled. setSensorOverrideReadings
• SetTimezoneOverrideParams
  Overrides default host system timezone with the specified one. setTimezoneOverride
• SetTimezoneOverrideParamsBuilder
• SetTimezoneOverrideReturns
  Overrides default host system timezone with the specified one. setTimezoneOverride
• SetTouchEmulationEnabledParams
  Enables touch on platforms which do not support them. setTouchEmulationEnabled
• SetTouchEmulationEnabledParamsBuilder
• SetTouchEmulationEnabledReturns
  Enables touch on platforms which do not support them. setTouchEmulationEnabled
• SetUserAgentOverrideParams
  Allows overriding user agent with the given string. userAgentMetadata must be set for Client Hint headers to be sent. setUserAgentOverride
• SetUserAgentOverrideParamsBuilder
• SetUserAgentOverrideReturns
  Allows overriding user agent with the given string. userAgentMetadata must be set for Client Hint headers to be sent. setUserAgentOverride
• SetVirtualTimePolicyParams
  Turns on virtual time for all frames (replacing real-time with a synthetic time source) and sets the current virtual time policy. Note this supersedes any previous time budget. setVirtualTimePolicy
• SetVirtualTimePolicyParamsBuilder
• SetVirtualTimePolicyReturns
  Turns on virtual time for all frames (replacing real-time with a synthetic time source) and sets the current virtual time policy. Note this supersedes any previous time budget. setVirtualTimePolicy
• SetVirtualTimePolicyReturnsBuilder
• UserAgentBrandVersion
  Used to specify User Agent Client Hints to emulate. See https://wicg.github.io/ua-client-hints UserAgentBrandVersion
• UserAgentBrandVersionBuilder
• UserAgentMetadata
  Used to specify User Agent Client Hints to emulate. See https://wicg.github.io/ua-client-hints Missing optional values will be filled in by the target with what it would normally use. UserAgentMetadata
• UserAgentMetadataBuilder

Enums

• DevicePostureType
  Current posture of the device
• DisabledImageType
  Enum of image types that can be disabled.
• DisplayFeatureOrientation
  Orientation of a display feature in relation to screen
• PressureSource
• PressureState
• ScreenOrientationType
  Orientation type.
• SensorType
  Used to specify sensor types to emulate. See https://w3c.github.io/sensors/#automation for more information.
• SetEmitTouchEventsForMouseConfiguration
  Touch/gesture events configuration. Default: current platform.
• SetEmulatedVisionDeficiencyType
  Vision deficiency to emulate. Order: best-effort emulations come first, followed by any physiologically accurate emulations for medically recognized color vision deficiencies.
• VirtualTimePolicy
  advance: If the scheduler runs out of immediate work, the virtual time base may fast forward to allow the next delayed task (if any) to run; pause: The virtual time base may not advance; pauseIfNetworkFetchesPending: The virtual time base may not advance if there are any pending resource fetches.