1/*
2 * Copyright (C) 2013 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 LinkImport_h
32#define LinkImport_h
33
34#include "core/html/LinkResource.h"
35#include "core/html/imports/HTMLImportChildClient.h"
36#include "wtf/FastAllocBase.h"
37#include "wtf/PassOwnPtr.h"
38#include "wtf/RefPtr.h"
39
40namespace blink {
41
42class Document;
43class HTMLImportChild;
44
45//
46// A LinkResource subclasss used for @rel=import.
47//
48class LinkImport FINAL : public LinkResource, public HTMLImportChildClient {
49    WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
50    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(LinkImport);
51public:
52
53    static PassOwnPtrWillBeRawPtr<LinkImport> create(HTMLLinkElement* owner);
54
55    explicit LinkImport(HTMLLinkElement* owner);
56    virtual ~LinkImport();
57
58    // LinkResource
59    virtual void process() OVERRIDE;
60    virtual Type type() const OVERRIDE { return Import; }
61    virtual bool hasLoaded() const OVERRIDE;
62    virtual void trace(Visitor*) OVERRIDE;
63    virtual void ownerInserted() OVERRIDE;
64
65    // HTMLImportChildClient
66    virtual void didFinish() OVERRIDE;
67#if !ENABLE(OILPAN)
68    virtual void importChildWasDestroyed(HTMLImportChild*) OVERRIDE;
69#endif
70    virtual bool isSync() const OVERRIDE;
71    virtual HTMLLinkElement* link() OVERRIDE;
72
73    Document* importedDocument() const;
74
75private:
76    RawPtrWillBeMember<HTMLImportChild> m_child;
77};
78
79} // namespace blink
80
81#endif // LinkImport_h
82