1/*
2 * Copyright (C) 2010 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef AbstractWorker_h
32#define AbstractWorker_h
33
34#if ENABLE(WORKERS)
35
36#include "ActiveDOMObject.h"
37#include "EventListener.h"
38#include "EventNames.h"
39#include "EventTarget.h"
40#include <wtf/PassRefPtr.h>
41#include <wtf/RefCounted.h>
42#include <wtf/RefPtr.h>
43#include <wtf/text/AtomicStringHash.h>
44
45namespace WebCore {
46
47    class KURL;
48    class ScriptExecutionContext;
49
50    class AbstractWorker : public RefCounted<AbstractWorker>, public ActiveDOMObject, public EventTarget {
51    public:
52        // EventTarget APIs
53        virtual ScriptExecutionContext* scriptExecutionContext() const OVERRIDE { return ActiveDOMObject::scriptExecutionContext(); }
54
55        DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
56
57        using RefCounted<AbstractWorker>::ref;
58        using RefCounted<AbstractWorker>::deref;
59
60        virtual void contextDestroyed() OVERRIDE;
61        AbstractWorker(ScriptExecutionContext*);
62        virtual ~AbstractWorker();
63
64    protected:
65        // Helper function that converts a URL to an absolute URL and checks the result for validity.
66        KURL resolveURL(const String& url, ExceptionCode& ec);
67        intptr_t asID() const { return reinterpret_cast<intptr_t>(this); }
68
69    private:
70        virtual void refEventTarget() OVERRIDE { ref(); }
71        virtual void derefEventTarget() OVERRIDE { deref(); }
72        virtual EventTargetData* eventTargetData() OVERRIDE;
73        virtual EventTargetData* ensureEventTargetData() OVERRIDE;
74
75        EventTargetData m_eventTargetData;
76    };
77
78} // namespace WebCore
79
80#endif // ENABLE(WORKERS)
81
82#endif // AbstractWorker_h
83