nsIDeviceMotion 编辑

xpcom/system/nsIDeviceMotion.idlScriptable This interface is used to implement accelerometer support. 1.0 66 Introduced Gecko 1.9.2 Inherits from: nsISupports Last changed in Gecko 6.0 (Firefox 6.0 / Thunderbird 6.0 / SeaMonkey 2.3) Note: This interface was named nsIDeviceMotion prior to Gecko 6.0 (Firefox 6.0 / Thunderbird 6.0 / SeaMonkey 2.3).

Method overview

void addListener(in nsIDeviceMotionListener aListener);

void addWindowListener(in nsIDOMWindow aWindow); Native code only!

void removeListener(in nsIDeviceMotionListener aListener);

void removeWindowListener(in nsIDOMWindow aWindow); Native code only!

Methods

addListener()

When called, the accelerometer support implementation must begin to notify the specified nsIDeviceMotionListener by calling its nsIDeviceMotionListener.onAccelerationChange() method as appropriate to share updated acceleration data.

void addListener(
  in nsIDeviceMotionListener aListener
);

Parameters

aListener

The nsIDeviceMotionListener object whose nsIDeviceMotionListener.onAccelerationChange() method should be called with updated acceleration data.

Native code only!

addWindowListener

Sets the nsIAccelerometer as the source for MozOrientation events on the specified DOM window.

void addWindowListener(
  in nsIDOMWindow aWindow
);

Parameters

aWindow

The DOM window that the accelerometer should begin sending MozOrientation events to.

removeListener()

Tells the accelerometer to stop sending updates to the specified nsIDeviceMotionListener.

void removeListener(
  in nsIDeviceMotionListener aListener
);

Parameters

aListener

The nsIDeviceMotionListener object to which no further updates should be sent.

Native code only!

removeWindowListener

Removes the nsIAccelerometer as the source for MozOrientation events on the specified DOM window.

void removeWindowListener(
  in nsIDOMWindow aWindow
);

Parameters

aWindow

The DOM window that the accelerometer should stop sending MozOrientation events to.

See also

• MozOrientation
• nsIDOMOrientationEvent
• nsIDeviceMotionData
• nsIDeviceMotionListener