1/*
2 * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB.  If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 *
19 */
20
21#include "config.h"
22#include "HTMLFrameOwnerElement.h"
23
24#include "DOMWindow.h"
25#include "Frame.h"
26#include "FrameLoader.h"
27#include "RenderPart.h"
28
29#if ENABLE(SVG)
30#include "ExceptionCode.h"
31#include "SVGDocument.h"
32#endif
33
34namespace WebCore {
35
36HTMLFrameOwnerElement::HTMLFrameOwnerElement(const QualifiedName& tagName, Document* document)
37    : HTMLElement(tagName, document)
38    , m_contentFrame(0)
39    , m_sandboxFlags(SandboxNone)
40{
41}
42
43RenderPart* HTMLFrameOwnerElement::renderPart() const
44{
45    // HTMLObjectElement and HTMLEmbedElement may return arbitrary renderers
46    // when using fallback content.
47    if (!renderer() || !renderer()->isRenderPart())
48        return 0;
49    return toRenderPart(renderer());
50}
51
52void HTMLFrameOwnerElement::willRemove()
53{
54    // FIXME: It is unclear why this can't be moved to removedFromDocument()
55    // this is the only implementation of willRemove in WebCore!
56    if (Frame* frame = contentFrame()) {
57        RefPtr<Frame> protect(frame);
58        frame->loader()->frameDetached();
59        frame->disconnectOwnerElement();
60    }
61
62    HTMLElement::willRemove();
63}
64
65HTMLFrameOwnerElement::~HTMLFrameOwnerElement()
66{
67    if (m_contentFrame)
68        m_contentFrame->disconnectOwnerElement();
69}
70
71Document* HTMLFrameOwnerElement::contentDocument() const
72{
73    return m_contentFrame ? m_contentFrame->document() : 0;
74}
75
76DOMWindow* HTMLFrameOwnerElement::contentWindow() const
77{
78    return m_contentFrame ? m_contentFrame->domWindow() : 0;
79}
80
81void HTMLFrameOwnerElement::setSandboxFlags(SandboxFlags flags)
82{
83    if (m_sandboxFlags == flags)
84        return;
85
86    m_sandboxFlags = flags;
87
88    if (Frame* frame = contentFrame())
89        frame->loader()->ownerElementSandboxFlagsChanged();
90}
91
92bool HTMLFrameOwnerElement::isKeyboardFocusable(KeyboardEvent* event) const
93{
94    return m_contentFrame && HTMLElement::isKeyboardFocusable(event);
95}
96
97#if ENABLE(SVG)
98SVGDocument* HTMLFrameOwnerElement::getSVGDocument(ExceptionCode& ec) const
99{
100    Document* doc = contentDocument();
101    if (doc && doc->isSVGDocument())
102        return static_cast<SVGDocument*>(doc);
103    // Spec: http://www.w3.org/TR/SVG/struct.html#InterfaceGetSVGDocument
104    ec = NOT_SUPPORTED_ERR;
105    return 0;
106}
107#endif
108
109} // namespace WebCore
110