Emulation Domain
Functions
Tells whether emulation is supported.
Clears the overridden device metrics.
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.
Clears the overridden Geolocation Position and Error.
Clears Idle state overrides.
Subscribes to all events related to this domain.
(undocumented in the protocol definition)
Requests that page scale factor is reset to initial values.
Automatically render all web contents using a dark theme.
Allows overriding the automation flag.
Enables CPU throttling to emulate slow CPUs.
Sets or clears an override of the default background color of the frame. This override is used if the content does not specify one.
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).
Start reporting the given posture value to the Device Posture API. This override can also be set in setDeviceMetricsOverride().
(undocumented in the protocol definition)
(undocumented in the protocol definition)
(undocumented in the protocol definition)
Emulates the given media type or media feature for CSS media queries.
Emulates the given vision deficiency.
Enables or disables simulating a focused and active page.
Overrides the Geolocation Position or Error. Omitting any of the parameters emulates position unavailable.
(undocumented in the protocol definition)
Overrides the Idle state.
Overrides default host system locale with the specified one.
Overrides value returned by the javascript navigator object.
Sets a specified page scale factor.
Switches script execution in the page.
(undocumented in the protocol definition)
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.
Updates the sensor readings reported by a sensor type previously overridden by setSensorOverrideEnabled.
Overrides default host system timezone with the specified one.
Enables touch on platforms which do not support them.
Allows overriding user agent with the given string. userAgentMetadata must be set for Client Hint headers to be sent.
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.
Resizes the frame/viewport of the page. Note that this does not affect the frame's container (e.g. browser window). Can be used to produce screenshots of the specified size. Not supported on Android.
Notification sent after the virtual time budget for the current VirtualTimePolicy has run out.