ScriptExecutionContext.h [plain text]
#ifndef ScriptExecutionContext_h
#define ScriptExecutionContext_h
#include "Console.h"
#include "KURL.h"
#include <wtf/HashMap.h>
#include <wtf/HashSet.h>
#include <wtf/PassOwnPtr.h>
#include <wtf/PassRefPtr.h>
#include <wtf/RefPtr.h>
#include <wtf/Threading.h>
namespace WebCore {
class ActiveDOMObject;
#if ENABLE(DATABASE)
class Database;
class DatabaseTaskSynchronizer;
class DatabaseThread;
#endif
class DOMTimer;
#if ENABLE(FILE_READER) || ENABLE(FILE_WRITER)
class FileThread;
#endif
class MessagePort;
class SecurityOrigin;
class ScriptString;
class String;
#if ENABLE(INSPECTOR)
class InspectorController;
#endif
class ScriptExecutionContext {
public:
ScriptExecutionContext();
virtual ~ScriptExecutionContext();
virtual bool isDocument() const { return false; }
virtual bool isWorkerContext() const { return false; }
#if ENABLE(DATABASE)
virtual bool isDatabaseReadOnly() const = 0;
virtual void databaseExceededQuota(const String& name) = 0;
DatabaseThread* databaseThread();
void setHasOpenDatabases() { m_hasOpenDatabases = true; }
bool hasOpenDatabases() const { return m_hasOpenDatabases; }
void addOpenDatabase(Database*);
void removeOpenDatabase(Database*);
void stopDatabases(DatabaseTaskSynchronizer*);
#endif
virtual bool isContextThread() const = 0;
virtual bool isJSExecutionTerminated() const = 0;
const KURL& url() const { return virtualURL(); }
KURL completeURL(const String& url) const { return virtualCompleteURL(url); }
virtual String userAgent(const KURL&) const = 0;
SecurityOrigin* securityOrigin() const { return m_securityOrigin.get(); }
#if ENABLE(INSPECTOR)
virtual InspectorController* inspectorController() const { return 0; }
#endif
virtual void reportException(const String& errorMessage, int lineNumber, const String& sourceURL) = 0;
virtual void addMessage(MessageSource, MessageType, MessageLevel, const String& message, unsigned lineNumber, const String& sourceURL) = 0;
bool canSuspendActiveDOMObjects();
void suspendActiveDOMObjects();
void resumeActiveDOMObjects();
void stopActiveDOMObjects();
void createdActiveDOMObject(ActiveDOMObject*, void* upcastPointer);
void destroyedActiveDOMObject(ActiveDOMObject*);
typedef const HashMap<ActiveDOMObject*, void*> ActiveDOMObjectsMap;
ActiveDOMObjectsMap& activeDOMObjects() const { return m_activeDOMObjects; }
void processMessagePortMessagesSoon();
void dispatchMessagePortEvents();
void createdMessagePort(MessagePort*);
void destroyedMessagePort(MessagePort*);
const HashSet<MessagePort*>& messagePorts() const { return m_messagePorts; }
void ref() { refScriptExecutionContext(); }
void deref() { derefScriptExecutionContext(); }
class Task : public Noncopyable {
public:
virtual ~Task();
virtual void performTask(ScriptExecutionContext*) = 0;
virtual bool isCleanupTask() const { return false; }
};
virtual void postTask(PassOwnPtr<Task>) = 0;
void addTimeout(int timeoutId, DOMTimer*);
void removeTimeout(int timeoutId);
DOMTimer* findTimeout(int timeoutId);
#if USE(JSC)
JSC::JSGlobalData* globalData();
#endif
#if ENABLE(FILE_READER) || ENABLE(FILE_WRITER)
FileThread* fileThread();
void stopFileThread();
#endif
protected:
void setSecurityOrigin(PassRefPtr<SecurityOrigin>);
private:
virtual const KURL& virtualURL() const = 0;
virtual KURL virtualCompleteURL(const String&) const = 0;
RefPtr<SecurityOrigin> m_securityOrigin;
HashSet<MessagePort*> m_messagePorts;
HashMap<ActiveDOMObject*, void*> m_activeDOMObjects;
HashMap<int, DOMTimer*> m_timeouts;
virtual void refScriptExecutionContext() = 0;
virtual void derefScriptExecutionContext() = 0;
#if ENABLE(DATABASE)
RefPtr<DatabaseThread> m_databaseThread;
bool m_hasOpenDatabases; typedef HashSet<Database* > DatabaseSet;
OwnPtr<DatabaseSet> m_openDatabaseSet;
#endif
#if ENABLE(FILE_READER) || ENABLE(FILE_WRITER)
RefPtr<FileThread> m_fileThread;
#endif
};
}
#endif // ScriptExecutionContext_h