nsILoadGroup 编辑

netwerk/base/public/nsILoadGroup.idlScriptable A load group maintains a collection of nsIRequest objects. Inherits from: nsIRequest Last changed in Gecko 1.7

Method overview

void addRequest(in nsIRequest aRequest, in nsISupports aContext);

void removeRequest(in nsIRequest aRequest, in nsISupports aContext, in nsresult aStatus);

Attributes

Attribute	Type	Description
activeCount	unsigned long	Returns the count of "active" requests (that is requests without the LOAD_BACKGROUND bit set). Read only.
defaultLoadRequest	nsIRequest	Accesses the default load request for the group. Each time a number of requests are added to a group, the defaultLoadRequest may be set to indicate that all of the requests are related to a base request. The load group inherits its load flags from the default load request. If the default load request is null, then the group's load flags are not changed.
groupObserver	nsIRequestObserver	The group observer is notified when requests are added to and removed from this load group. The groupObserver is weak referenced.
notificationCallbacks	nsIInterfaceRequestor	Notification callbacks for the load group.
requests	nsISimpleEnumerator	Returns the requests contained directly in this group. Enumerator element type: nsIRequest. Read only.

Methods

addRequest()

Adds a new request to the group. This will cause the default load flags to be applied to the request. If this is a foreground request then the groupObserver's onStartRequest will be called.

If the request is the default load request or if the default load request is null, then the load group will inherit its load flags from the request.

void addRequest(
  in nsIRequest aRequest,
  in nsISupports aContext
);

Parameters

aRequest

The request to be added to the load group.

aContext

The context to be passed to the onStartRequest notification.

removeRequest()

Removes a request from the group. If this is a foreground request then the groupObserver's onStopRequest will be called.

By the time this call ends, aRequest will have been removed from the loadgroup, even if this function throws an exception.

void removeRequest(
  in nsIRequest aRequest,
  in nsISupports aContext,
  in nsresult aStatus
);

Parameters

aRequest

The request to be removed from the load group.

aContext

The context to be passed to the onStopRequest notification.

aStatus

The status to be passed to the onStopRequest notification.