1/*
2 * Copyright (C) 2012 Adobe Systems Incorporated. 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
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above
9 *    copyright notice, this list of conditions and the following
10 *    disclaimer.
11 * 2. Redistributions in binary form must reproduce the above
12 *    copyright notice, this list of conditions and the following
13 *    disclaimer in the documentation and/or other materials
14 *    provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
21 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
25 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
26 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#ifndef NamedFlowCollection_h
31#define NamedFlowCollection_h
32
33#include "ContextDestructionObserver.h"
34#include "WebKitNamedFlow.h"
35#include <wtf/Forward.h>
36#include <wtf/ListHashSet.h>
37#include <wtf/PassRefPtr.h>
38#include <wtf/RefCounted.h>
39#include <wtf/Vector.h>
40
41namespace WebCore {
42
43class Document;
44class DOMNamedFlowCollection;
45
46class NamedFlowCollection : public RefCounted<NamedFlowCollection>, public ContextDestructionObserver {
47public:
48    static PassRefPtr<NamedFlowCollection> create(Document* doc) { return adoptRef(new NamedFlowCollection(doc)); }
49
50    Vector<RefPtr<WebKitNamedFlow> > namedFlows();
51    WebKitNamedFlow* flowByName(const String&);
52    PassRefPtr<WebKitNamedFlow> ensureFlowWithName(const String&);
53
54    void discardNamedFlow(WebKitNamedFlow*);
55
56    Document* document() const;
57
58    virtual ~NamedFlowCollection() { }
59
60    PassRefPtr<DOMNamedFlowCollection> createCSSOMSnapshot();
61
62private:
63    struct NamedFlowHashFunctions;
64    struct NamedFlowHashTranslator;
65
66    typedef ListHashSet<WebKitNamedFlow*, 1, NamedFlowHashFunctions> NamedFlowSet;
67
68    explicit NamedFlowCollection(Document*);
69
70    NamedFlowSet m_namedFlows;
71};
72
73} // namespace WebCore
74
75#endif // NamedFlowCollection_h
76