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      1 /*
      2  *  Copyright (C) 2000 Harri Porten (porten (at) kde.org)
      3  *  Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reseved.
      4  *
      5  *  This library is free software; you can redistribute it and/or
      6  *  modify it under the terms of the GNU Lesser General Public
      7  *  License as published by the Free Software Foundation; either
      8  *  version 2 of the License, or (at your option) any later version.
      9  *
     10  *  This library is distributed in the hope that it will be useful,
     11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
     12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13  *  Lesser General Public License for more details.
     14  *
     15  *  You should have received a copy of the GNU Lesser General Public
     16  *  License along with this library; if not, write to the Free Software
     17  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
     18  */
     19 
     20 #ifndef ScheduledAction_h
     21 #define ScheduledAction_h
     22 
     23 #include "JSDOMBinding.h"
     24 #include "PlatformString.h"
     25 #include <heap/Strong.h>
     26 #include <runtime/JSCell.h>
     27 #include <wtf/PassOwnPtr.h>
     28 #include <wtf/Vector.h>
     29 
     30 namespace JSC {
     31     class JSGlobalObject;
     32 }
     33 
     34 namespace WebCore {
     35 
     36     class Document;
     37     class ContentSecurityPolicy;
     38     class ScriptExecutionContext;
     39     class WorkerContext;
     40 
     41    /* An action (either function or string) to be executed after a specified
     42     * time interval, either once or repeatedly. Used for window.setTimeout()
     43     * and window.setInterval()
     44     */
     45     class ScheduledAction {
     46         WTF_MAKE_NONCOPYABLE(ScheduledAction); WTF_MAKE_FAST_ALLOCATED;
     47     public:
     48         static PassOwnPtr<ScheduledAction> create(JSC::ExecState*, DOMWrapperWorld* isolatedWorld, ContentSecurityPolicy*);
     49 
     50         void execute(ScriptExecutionContext*);
     51 
     52     private:
     53         ScheduledAction(JSC::ExecState*, JSC::JSValue function, DOMWrapperWorld* isolatedWorld);
     54         ScheduledAction(const String& code, DOMWrapperWorld* isolatedWorld)
     55             : m_function(*isolatedWorld->globalData())
     56             , m_code(code)
     57             , m_isolatedWorld(isolatedWorld)
     58         {
     59         }
     60 
     61         void executeFunctionInContext(JSC::JSGlobalObject*, JSC::JSValue thisValue, ScriptExecutionContext*);
     62         void execute(Document*);
     63 #if ENABLE(WORKERS)
     64         void execute(WorkerContext*);
     65 #endif
     66 
     67         JSC::Strong<JSC::Unknown> m_function;
     68         Vector<JSC::Strong<JSC::Unknown> > m_args;
     69         String m_code;
     70         RefPtr<DOMWrapperWorld> m_isolatedWorld;
     71     };
     72 
     73 } // namespace WebCore
     74 
     75 #endif // ScheduledAction_h
     76