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 /* This file is part of the KDE libraries
     Copyright (C) 2005, 2006 Ian Reinhart Geiser <geiseri@kde.org>
     Copyright (C) 2005, 2006 Matt Broadstone <mbroadst@gmail.com>
     Copyright (C) 2005, 2006 Richard J. Moore <rich@kde.org>
     Copyright (C) 2005, 2006 Erik L. Bunce <kde@bunce.us>
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
 
     This library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Library General Public License for more details.
 
     You should have received a copy of the GNU Library General Public License
     along with this library; see the file COPYING.LIB.  If not, write to
     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     Boston, MA 02110-1301, USA.
 */
 
 #ifndef KJSEMBED_H
 #define KJSEMBED_H
 
 class QObject;
 
 #include <kjsembed/kjsembed_export.h>
 #include <kjs/object.h>
 
 namespace KJS
 {
 class Interpreter;
 class Object;
 class Completion;
 }
 
 namespace KJSEmbed
 {
 
 /**
  * The main interface for running embedded Javascript.
  *
  * \code
  * KJSEmbed::Engine *engine = new KJSEmbed::Engine();
  * KJS::Interpreter *interpreter = engine->interpreter();
  * interpreter->setShouldPrintExceptions(true);
  * KJS::ExecState *exec = interpreter->globalExec();
  * KJS::UString code("print(\"Hello World\")");
  * KJSEmbed::Engine::ExitStatus exitstatus = engine->execute(code);
  * KJS::Completion completion = engine->completion();
  * if(exitstatus != KJSEmbed::Engine::Success) {
  *     KJS::JSValue* value = completion.value();
  *     qDebug() << value->toString(exec).qstring();
  * }
  * \endcode
  */
 class KJSEMBED_EXPORT Engine
 {
 public:
     /**
      * Status codes for script execution. Note that you can access the completion
      * object itself with completion() for more detail.
      */
     enum ExitStatus { Success = 0, Failure = 1 };
 
     /**
      * Constructs an embedded JS engine.
      *
      * @param enableBindings If true then the bindings will be added to the interpreter
      * created. Otherwise a plain interpreter with nothing beyond the JS built in functions
      * and objects is created. This allows users who want to run untrusted scripts to choose
      * exactly which bindings they offer.
      */
     Engine(bool enableBindings = true);
     /** Clean up. */
     virtual ~Engine();
 
     /** Returns true if the Engine was created with the bindings enabled. */
     bool isBindingsEnabled() const;
 
     /**
      * Execute the file with the specified name using the current interpreter.
      * @param file Filename to execute.
      */
     ExitStatus runFile(const KJS::UString &file);
 
     /**
      * Execute the file with the specified name using the specified interpreter.
      * @param interpreter Interpreter to use.
      * @param file Filename to execute.
      */
     static KJS::Completion runFile(KJS::Interpreter *interpreter, const KJS::UString &file);
 
     /**
      * Execute a code string using the current interpreter.
      * @param code The script code to execute.
      */
     ExitStatus execute(const KJS::UString &code);
 
     /**
      * Returns the Completion object for the last script executed.
      */
     KJS::Completion completion() const;
 
     /**
      * Returns the current interpreter.
      */
     KJS::Interpreter *interpreter() const;
 
     /**
     *  publishes a QObject to the global context of the javascript interpereter.
     */
     KJS::JSObject *addObject(QObject *obj, const KJS::UString &name = KJS::UString()) const;
 
     /**
     * publishes a QObject to a parent object.
     */
     KJS::JSObject *addObject(QObject *obj, KJS::JSObject *parent, const KJS::UString &name = KJS::UString()) const;
 
     /**
     * Create a new instance of an object that the Javascript engine knows about.  If the object
     * doesn't exist a KJS::jsNull() is returned and an exception thrown.
     */
     KJS::JSObject *construct(const KJS::UString &className, const KJS::List &args = KJS::List()) const;
 
     /**
     * Execute a method at the global scope of the javascript interpreter.
     */
     KJS::JSValue *callMethod(const KJS::UString &methodName, const KJS::List &args = KJS::List());
 
     /**
     * Execute a method on an object.
     */
     KJS::JSValue *callMethod(KJS::JSObject *parent, const KJS::UString &methodName, const KJS::List &args = KJS::List());
 
 private:
     class EnginePrivate *dptr;
 };
 
 }
 
 #endif