nsIHapticFeedback 编辑

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xpcom/system/nsIHapticFeedback.idlScriptable Implemented to provide support for haptic feedback (that is, vibration support). 1.0 66 Introduced Gecko 2.0 Inherits from: nsISupports Last changed in Gecko 2.0 (Firefox 4 / Thunderbird 3.3 / SeaMonkey 2.1)

Implemented by: @mozilla.org/widget/hapticfeedback;1 as a service:

var hapticFeedback = Components.classes["@mozilla.org/widget/hapticfeedback;1"]
                     .getService(Components.interfaces.nsIHapticFeedback);

Once you have the service, you can initiate haptic feedback (that is, cause the device to vibrate, if it's supported) by calling performSimpleAction():

hapticFeedback.performSimpleAction(Components.interfaces.nsIHapticFeedback.LongPress);

Method overview

void performSimpleAction(in long isLongPress);

Constants

Press length constants

Constant	Value	Description
ShortPress	0	Specify as the action type to perform a short vibration.
LongPress	1	Specify as the action type to perform a long vibration.

Methods

performSimpleAction()

Perform haptic feedback.

void performSimpleAction(
  in long isLongPress
);

Parameters

isLongPress

The press length; this will determine how long the vibration should last. See Press length constants for permitted values.