1 /*
2 * Copyright (C) 2012 Apple 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
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include "config.h"
30 #include "core/accessibility/AXSVGRoot.h"
31
32
33 namespace blink {
34
AXSVGRoot(RenderObject * renderer)35 AXSVGRoot::AXSVGRoot(RenderObject* renderer)
36 : AXRenderObject(renderer)
37 , m_parent(0)
38 {
39 }
40
~AXSVGRoot()41 AXSVGRoot::~AXSVGRoot()
42 {
43 }
44
create(RenderObject * renderer)45 PassRefPtr<AXSVGRoot> AXSVGRoot::create(RenderObject* renderer)
46 {
47 return adoptRef(new AXSVGRoot(renderer));
48 }
49
setParent(AXObject * parent)50 void AXSVGRoot::setParent(AXObject* parent)
51 {
52 // Only update the parent to another objcet if it wasn't already set to
53 // something. Multiple elements in an HTML document can reference
54 // the same remote SVG document, and in that case the parent should just
55 // stay with the first one.
56 if (!m_parent || !parent)
57 m_parent = parent;
58 }
59
parentObject() const60 AXObject* AXSVGRoot::parentObject() const
61 {
62 // If a parent was set because this is a remote SVG resource, use that
63 // but otherwise, we should rely on the standard render tree for the parent.
64 if (m_parent)
65 return m_parent;
66
67 return AXRenderObject::parentObject();
68 }
69
70
71 } // namespace blink
72