nsIDragDropHandler 编辑

nsIDragDropHandler is an interface for communicating with the built-in drag and drop implementation in the content area. Use this to register where the listeners should attach (something that implements nsPIDOMEventTarget which is what we end up using under the hood).

Inherits from: nsISupports

Method overview

Methods

detach()

Unregisters all handlers related to drag and drop.

void detach();

Parameters

None.

hookupTo()

Attaches drag handlers to a specified receiver, setting up callbacks to let built-in behaviors be overridden.

void hookupTo(
   in nsIDOMEventTarget attachPoint,
   in nsIWebNavigation navigator
);

Parameters

attachPoint

The receiver to which to attach drag handlers.

navigator

The nsIWebNavigation object to handle the dropped URLs. If this is NULL, the client must handle the drop itself, either through the method provided via overrideDrop() or by letting the event bubble up through the DOM.