kjs_proxy.h

00001 // -*- c-basic-offset: 2 -*-
00002 /*
00003  *  This file is part of the KDE libraries
00004  *  Copyright (C) 1999 Harri Porten (porten@kde.org)
00005  *  Copyright (C) 2001 Peter Kelly (pmk@post.com)
00006  *
00007  *  This library is free software; you can redistribute it and/or
00008  *  modify it under the terms of the GNU Library General Public
00009  *  License as published by the Free Software Foundation; either
00010  *  version 2 of the License, or (at your option) any later version.
00011  *
00012  *  This library is distributed in the hope that it will be useful,
00013  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015  *  Library General Public License for more details.
00016  *
00017  *  You should have received a copy of the GNU Library General Public
00018  *  License along with this library; if not, write to the Free Software
00019  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
00020  */
00021 
00022 #ifndef _KJS_PROXY_H_
00023 #define _KJS_PROXY_H_
00024 
00025 #include <qvariant.h>
00026 #include <qstring.h>
00027 #include <sys/time.h>
00028 
00029 class KHTMLPart;
00030 
00031 namespace DOM {
00032   class Node;
00033   class NodeImpl;
00034   class EventListener;
00035   class Event;
00036 }
00037 
00038 namespace KJS {
00039   class List;
00040   class Interpreter;
00041   class Completion;
00042   class KJSDebugWin;
00043 }
00044 
00045 namespace khtml {
00046   class ChildFrame;
00047 }
00048 
00054 class KJSProxy {
00055 public:
00056   KJSProxy() { m_handlerLineno = 0; }
00057   virtual ~KJSProxy() { }
00058   virtual QVariant evaluate(QString filename, int baseLine, const QString &, const DOM::Node &n,
00059                 KJS::Completion *completion = 0) = 0;
00060   virtual void clear() = 0;
00061   virtual DOM::EventListener *createHTMLEventHandler(QString sourceUrl, QString name, QString code, DOM::NodeImpl* node) = 0;
00062   virtual void finishedWithEvent(const DOM::Event &event) = 0;
00063   virtual KJS::Interpreter *interpreter() = 0;
00064 
00065   virtual void setDebugEnabled(bool enabled) = 0;
00066   virtual void showDebugWindow(bool show=true) = 0;
00067   virtual bool paused() const = 0;
00068   virtual void dataReceived() = 0;
00069 
00070   void setEventHandlerLineno(int lineno) { m_handlerLineno = lineno; }
00071 
00072   khtml::ChildFrame *m_frame;
00073   int m_handlerLineno;
00074 
00075   // Helper method, to access the private KHTMLPart::jScript()
00076   static KJSProxy *proxy( KHTMLPart *part );
00077 };
00078 
00079 class KJSCPUGuard {
00080 public:
00081   KJSCPUGuard() {}
00082   void start(unsigned int msec=5000, unsigned int i_msec=10000);
00083   void stop();
00084 private:
00085   void (*oldAlarmHandler)(int);
00086   static void alarmHandler(int);
00087   static bool confirmTerminate();
00088   itimerval oldtv;
00089 };
00090 
00091 #endif
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