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 *
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 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * 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.
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 * Contributor(s):
 *
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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 nsIPluginInstance;

// {3e2df1fe-a898-4e2e-8763-4ca904fa338e}
#define NS_IOBJECTFRAME_IID \
{ 0x3e2df1fe, 0xa898, 0x4e2e, { 0x87, 0x63, 0x4c, 0xa9, 0x4, 0xfa, 0x33, 0x8e } }

class nsIObjectFrame : public nsISupports {
public:
  NS_DECLARE_STATIC_IID_ACCESSOR(NS_IOBJECTFRAME_IID)

  NS_IMETHOD GetPluginInstance(nsIPluginInstance*& 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;
};

NS_DEFINE_STATIC_IID_ACCESSOR(nsIObjectFrame, NS_IOBJECTFRAME_IID)

#endif /* nsIObjectFrame_h___ */
