1/*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 *           (C) 1999 Antti Koivisto (koivisto@kde.org)
4 *           (C) 2000 Simon Hausmann (hausmann@kde.org)
5 *           (C) 2001 Dirk Mueller (mueller@kde.org)
6 * Copyright (C) 2004, 2006, 2009 Apple Inc. All rights reserved.
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16 * Library General Public License for more details.
17 *
18 * You should have received a copy of the GNU Library General Public License
19 * along with this library; see the file COPYING.LIB.  If not, write to
20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
22 */
23
24#include "config.h"
25#include "HTMLFrameElement.h"
26
27#include "Attribute.h"
28#include "Frame.h"
29#include "HTMLFrameSetElement.h"
30#include "HTMLNames.h"
31#include "RenderFrame.h"
32
33namespace WebCore {
34
35using namespace HTMLNames;
36
37inline HTMLFrameElement::HTMLFrameElement(const QualifiedName& tagName, Document* document)
38    : HTMLFrameElementBase(tagName, document)
39    , m_frameBorder(true)
40    , m_frameBorderSet(false)
41    , m_noResize(false)
42{
43    ASSERT(hasTagName(frameTag));
44}
45
46PassRefPtr<HTMLFrameElement> HTMLFrameElement::create(const QualifiedName& tagName, Document* document)
47{
48    return adoptRef(new HTMLFrameElement(tagName, document));
49}
50
51bool HTMLFrameElement::rendererIsNeeded(RenderStyle*)
52{
53    // For compatibility, frames render even when display: none is set.
54    return isURLAllowed();
55}
56
57RenderObject* HTMLFrameElement::createRenderer(RenderArena* arena, RenderStyle*)
58{
59    return new (arena) RenderFrame(this);
60}
61
62static inline HTMLFrameSetElement* containingFrameSetElement(Node* node)
63{
64    while ((node = node->parentNode())) {
65        if (node->hasTagName(framesetTag))
66            return static_cast<HTMLFrameSetElement*>(node);
67    }
68    return 0;
69}
70
71void HTMLFrameElement::attach()
72{
73    HTMLFrameElementBase::attach();
74
75    if (HTMLFrameSetElement* frameSetElement = containingFrameSetElement(this)) {
76        if (!m_frameBorderSet)
77            m_frameBorder = frameSetElement->hasFrameBorder();
78        if (!m_noResize)
79            m_noResize = frameSetElement->noResize();
80    }
81}
82
83void HTMLFrameElement::parseMappedAttribute(Attribute* attr)
84{
85    if (attr->name() == frameborderAttr) {
86        m_frameBorder = attr->value().toInt();
87        m_frameBorderSet = !attr->isNull();
88        // FIXME: If we are already attached, this has no effect.
89    } else if (attr->name() == noresizeAttr) {
90        m_noResize = true;
91        // FIXME: If we are already attached, this has no effect.
92        // FIXME: Since this does not check attr->isNull(), it can
93        // never reset m_noResize to false if the attribute is removed.
94    } else
95        HTMLFrameElementBase::parseMappedAttribute(attr);
96}
97
98} // namespace WebCore
99