Interface nsIContentHandlerType

Hierarchy

Methods

AddRef QueryInterface Release handleContent

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

handleContent

  • Tells the content handler to take over handling the content. If this function succeeds, the URI Loader will leave this request alone, ignoring progress notifications. Failure of this method will cause the request to be cancelled, unless the error code is NS_ERROR_WONT_HANDLE_CONTENT (see below).

    Throw

    NS_ERROR_WONT_HANDLE_CONTENT Indicates that this handler does not want to handle this content. A different way for handling this content should be tried.

    Parameters

    • aContentType: string

      The content type of aRequest

    • aWindowContext: nsIInterfaceRequestor

      Window context, used to get things like the current nsIDOMWindow for this request. May be null.

    • aRequest: nsIRequest

      A request whose content type is already known.

    Returns void

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