gecko-dev/layout/generic/nsIObjectFrame.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
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*
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* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
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* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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/*
* interface for rendering objects for replaced elements implemented by
* a plugin
*/
#ifndef nsIObjectFrame_h___
#define nsIObjectFrame_h___
#include "nsIFrame.h"
class nsNPAPIPluginInstance;
class nsIObjectFrame : public nsQueryFrame
{
public:
NS_DECL_QUERYFRAME_TARGET(nsIObjectFrame)
NS_IMETHOD GetPluginInstance(nsNPAPIPluginInstance** aPluginInstance) = 0;
/**
* Instantiate a plugin for a channel, returning a stream listener for the
* data.
*
* @note Calling this method can delete the frame, so don't assume
* the frame is alive after this call returns.
*/
virtual nsresult Instantiate(nsIChannel* aChannel, nsIStreamListener** aStreamListener) = 0;
/**
* @note Calling this method can delete the frame, so don't assume
* the frame is alive after this call returns.
*/
virtual void TryNotifyContentObjectWrapper() = 0;
/**
* Instantiate a plugin that loads the data itself.
* @param aMimeType Type of the plugin to instantiate. May be null.
* @param aURI URI of the plugin data. May be null.
* @note Only one of aURI and aMimeType may be null.
* If aURI is null, aMimeType must not be the empty string.
* @note XXX this method is here only temporarily, until plugins are loaded
* from content.
*
* @note Calling this method can delete the frame, so don't assume
* the frame is alive after this call returns.
*/
virtual nsresult Instantiate(const char* aMimeType, nsIURI* aURI) = 0;
/**
* Stops and unloads the plugin. Makes the frame ready to receive another
* Instantiate() call. It is safe to call this method even when no plugin
* is currently active in this frame.
*/
virtual void StopPlugin() = 0;
/**
* Get the native widget for the plugin, if any.
*/
virtual nsIWidget* GetWidget() = 0;
/**
* Update plugin active state. Frame should update if it is on an active tab
* or not and forward that information to the plugin to make it possible to
* throttle down plugin instance in non active case.
*/
virtual void SetIsDocumentActive(bool aIsActive) = 0;
};
#endif /* nsIObjectFrame_h___ */