gecko-dev/dom/base/nsIScriptTimeoutHandler.h

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 *   Mark Hammond <mhammond@skippinet.com.au>
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#ifndef nsIScriptTimeoutHandler_h___
#define nsIScriptTimeoutHandler_h___

class nsIArray;

#define NS_ISCRIPTTIMEOUTHANDLER_IID \
{ /* {260C0DAB-0DCF-4c75-B820-46C31005718D} */ \
  0x260c0dab, 0xdcf, 0x4c75, \
  { 0xb8, 0x20, 0x46, 0xc3, 0x10, 0x5, 0x71, 0x8d } }

/**
 * Abstraction of the script objects etc required to do timeouts in a
 * language agnostic way.
 */

class nsIScriptTimeoutHandler : public nsISupports
{
public:
  NS_DECLARE_STATIC_IID_ACCESSOR(NS_ISCRIPTTIMEOUTHANDLER_IID)

  // Get the script-type (language) implementing this timeout.
  virtual PRUint32 GetScriptTypeID() = 0;

  // Get a script object for the language suitable for passing back to
  // the language's context as an event handler.  If this returns nsnull,
  // GetHandlerText() will be called to get the string.
  virtual void *GetScriptObject() = 0;

  // Get the handler text of not a compiled object.
  virtual const PRUnichar *GetHandlerText() = 0;

  // Get the location of the script.
  // Note: The memory pointed to by aFileName is owned by the
  // nsIScriptTimeoutHandler and should not be freed by the caller.
  virtual void GetLocation(const char **aFileName, PRUint32 *aLineNo) = 0;

  // If a script object, get the argv suitable for passing back to the
  // script context.
  virtual nsIArray *GetArgv() = 0;

  // Get the language version for this timeout.
  virtual PRUint32 GetScriptVersion() = 0;

  // Set the "secret" final lateness arg.  This will be called before
  // GetArgv(), which should reflect this lateness value.
  virtual void SetLateness(PRIntervalTime aHowLate) = 0;
};

NS_DEFINE_STATIC_IID_ACCESSOR(nsIScriptTimeoutHandler,
                              NS_ISCRIPTTIMEOUTHANDLER_IID)

#endif // nsIScriptTimeoutHandler_h___