Interface nsIContentPrefObserverType

Hierarchy

Methods

AddRef QueryInterface Release onContentPrefRemoved onContentPrefSet

Methods

AddRef

  • Increases the reference count for this interface. The associated instance will not be deleted unless the reference count is returned to zero.

    Returns

    The resulting reference count.

    Returns number

QueryInterface

  • Parameters

    • aIID: object
    • Optional aInstancePtr: object

    Returns any

  • A run time mechanism for interface discovery.

    Returns

    NS_OK if the interface is supported by the associated instance, NS_NOINTERFACE if it is not.

    aInstancePtr must not be null.

    Parameters

    • aIID: object

      [in] A requested interface IID

    • aInstancePtr: object

      [out] A pointer to an interface pointer to receive the result.

    Returns void

Release

  • Decreases the reference count for this interface. Generally, if the reference count returns to zero, the associated instance is deleted.

    Returns

    The resulting reference count.

    Returns number

onContentPrefRemoved

  • Called when a content pref is removed.

    Parameters

    • aGroup: string

      the group to which the pref belongs, or null if it's a global pref (applies to all sites)

    • aName: string

      the name of the pref that was removed

    • aIsPrivate: boolean

      an optional flag determining whether the original context is private or not

    Returns void

onContentPrefSet

  • Called when a content pref is set to a different value.

    Parameters

    • aGroup: string

      the group to which the pref belongs, or null if it's a global pref (applies to all sites)

    • aName: string

      the name of the pref that was set

    • aValue: nsIVariant

      the new value of the pref

    • aIsPrivate: boolean

      an optional flag determining whether the original context is private or not

    Returns void

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