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/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsISupports.idl"
interface nsIInterfaceRequestor;
interface nsIWebBrowserChrome;
interface nsIURIContentListener;
interface nsIDOMWindow;
interface mozIDOMWindowProxy;
interface nsIWeakReference;
%{C++
namespace mozilla {
class DocShellOriginAttributes;
}
%}
[ref] native const_OriginAttributesRef(const mozilla::DocShellOriginAttributes);
/**
* The nsIWebBrowser interface is implemented by web browser objects.
* Embedders use this interface during initialisation to associate
* the new web browser instance with the embedders chrome and
* to register any listeners. The interface may also be used at runtime
* to obtain the content DOM window and from that the rest of the DOM.
*/
[scriptable, uuid(4052b6da-4faa-4646-b3a1-7e16a01c2dc2)]
interface nsIWebBrowser : nsISupports
{
/**
* Registers a listener of the type specified by the iid to receive
* callbacks. The browser stores a weak reference to the listener
* to avoid any circular dependencies.
* Typically this method will be called to register an object
* to receive <CODE>nsIWebProgressListener</CODE> or
* <CODE>nsISHistoryListener</CODE> notifications in which case the
* the IID is that of the interface.
*
* @param aListener The listener to be added.
* @param aIID The IID of the interface that will be called
* on the listener as appropriate.
* @return <CODE>NS_OK</CODE> for successful registration;
* <CODE>NS_ERROR_INVALID_ARG</CODE> if aIID is not
* supposed to be registered using this method;
* <CODE>NS_ERROR_FAILURE</CODE> either aListener did not
* expose the interface specified by the IID, or some
* other internal error occurred.
*
* @see removeWebBrowserListener
* @see nsIWeakReference
* @see nsIWebProgressListener
* @see nsISHistoryListener
*
* @return <CODE>NS_OK</CODE>, listener was successfully added;
* <CODE>NS_ERROR_INVALID_ARG</CODE>, one of the arguments was
* invalid or the object did not implement the interface
* specified by the IID.
*/
void addWebBrowserListener(in nsIWeakReference aListener, in nsIIDRef aIID);
/**
* Removes a previously registered listener.
*
* @param aListener The listener to be removed.
* @param aIID The IID of the interface on the listener that will
* no longer be called.
*
* @return <CODE>NS_OK</CODE>, listener was successfully removed;
* <CODE>NS_ERROR_INVALID_ARG</CODE> arguments was invalid or
* the object did not implement the interface specified by the IID.
*
* @see addWebBrowserListener
* @see nsIWeakReference
*/
void removeWebBrowserListener(in nsIWeakReference aListener, in nsIIDRef aIID);
/**
* The chrome object associated with the browser instance. The embedder
* must create one chrome object for <I>each</I> browser object
* that is instantiated. The embedder must associate the two by setting
* this property to point to the chrome object before creating the browser
* window via the browser's <CODE>nsIBaseWindow</CODE> interface.
*
* The chrome object must also implement <CODE>nsIEmbeddingSiteWindow</CODE>.
*
* The chrome may optionally implement <CODE>nsIInterfaceRequestor</CODE>,
* <CODE>nsIWebBrowserChromeFocus</CODE>,
* <CODE>nsIContextMenuListener</CODE> and
* <CODE>nsITooltipListener</CODE> to receive additional notifications
* from the browser object.
*
* The chrome object may optionally implement <CODE>nsIWebProgressListener</CODE>
* instead of explicitly calling <CODE>addWebBrowserListener</CODE> and
* <CODE>removeWebBrowserListener</CODE> to register a progress listener
* object. If the implementation does this, it must also implement
* <CODE>nsIWeakReference</CODE>.
*
* @note The implementation should not refcount the supplied chrome
* object; it should assume that a non <CODE>nullptr</CODE> value is
* always valid. The embedder must explicitly set this value back
* to nullptr if the chrome object is destroyed before the browser
* object.
*
* @see nsIBaseWindow
* @see nsIWebBrowserChrome
* @see nsIEmbeddingSiteWindow
* @see nsIInterfaceRequestor
* @see nsIWebBrowserChromeFocus
* @see nsIContextMenuListener
* @see nsITooltipListener
* @see nsIWeakReference
* @see nsIWebProgressListener
*/
attribute nsIWebBrowserChrome containerWindow;
/**
* URI content listener parent. The embedder may set this property to
* their own implementation if they intend to override or prevent
* how certain kinds of content are loaded.
*
* @note If this attribute is set to an object that implements
* nsISupportsWeakReference, the implementation should get the
* nsIWeakReference and hold that. Otherwise, the implementation
* should not refcount this interface; it should assume that a non
* null value is always valid. In that case, the embedder should
* explicitly set this value back to null if the parent content
* listener is destroyed before the browser object.
*
* @see nsIURIContentListener
*/
attribute nsIURIContentListener parentURIContentListener;
/**
* The top-level DOM window. The embedder may walk the entire
* DOM starting from this value.
*
* @see nsIDOMWindow
*/
readonly attribute mozIDOMWindowProxy contentDOMWindow;
/**
* Whether this web browser is active. Active means that it's visible
* enough that we want to avoid certain optimizations like discarding
* decoded image data and throttling the refresh driver. In Firefox,
* this corresponds to the visible tab.
*
* Defaults to true. For optimal performance, set it to false when
* appropriate.
*/
attribute boolean isActive;
/**
* Set Origin Attributes on the nsIWebBrowser.
* The Origin Attributes will be passed to the docshell once it has been
* created
*/
[noscript, notxpcom, nostdcall, binaryname(SetOriginAttributes)]
void binarySetOriginAttributes(in const_OriginAttributesRef aOriginAttrs);
};
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