1/*
2 * Copyright (c) 2012 Motorola Mobility, Inc.  All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without modification,
5 * are permitted provided that the following conditions are met:
6 *
7 * Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.
9 *
10 * Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation and/or
12 * other materials provided with the distribution.
13 *
14 * Neither the name of Motorola Mobility, Inc. nor the names of its contributors may
15 * be used to endorse or promote products derived from this software without
16 * 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 LIMITED TO,
20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
22 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
25 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
26 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
27 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32
33#if ENABLE(MICRODATA)
34#include "PropertyNodeList.h"
35
36#include "DOMSettableTokenList.h"
37#include "DOMStringList.h"
38#include "HTMLElement.h"
39#include "HTMLNames.h"
40#include "NodeRareData.h"
41
42namespace WebCore {
43
44using namespace HTMLNames;
45
46PropertyNodeList::PropertyNodeList(Node* rootNode, const String& name)
47    : LiveNodeList(rootNode, PropertyNodeListType, InvalidateOnItemAttrChange, NodeListIsRootedAtDocumentIfOwnerHasItemrefAttr)
48    , m_name(name)
49{
50}
51
52PropertyNodeList::~PropertyNodeList()
53{
54    ownerNode()->nodeLists()->removeCacheWithName(this, PropertyNodeListType, m_name);
55}
56
57bool PropertyNodeList::elementIsPropertyOfRefElement(const Node* testElement, const Node *refElement) const
58{
59    for (const ContainerNode* node = testElement->parentNode(); node; node = node->parentNode()) {
60        if (node->isHTMLElement() && toHTMLElement(node)->fastHasAttribute(itemscopeAttr) && node != ownerNode())
61            return false;
62
63        if (node == refElement)
64            return true;
65    }
66    return false;
67}
68
69void PropertyNodeList::updateRefElements() const
70{
71    if (isItemRefElementsCacheValid())
72        return;
73
74    m_itemRefElementsCache.clear();
75    setItemRefElementsCacheValid();
76    toHTMLElement(ownerNode())->getItemRefElements(m_itemRefElementsCache);
77}
78
79bool PropertyNodeList::nodeMatches(Element* testElement) const
80{
81    if (!testElement->isHTMLElement() || !testElement->fastHasAttribute(itempropAttr) || testElement == ownerNode())
82        return false;
83
84    for (unsigned i = 0; i < m_itemRefElementsCache.size(); ++i) {
85        if (testElement == m_itemRefElementsCache[i] || elementIsPropertyOfRefElement(testElement, m_itemRefElementsCache[i])) {
86            if (testElement->itemProp()->tokens().contains(m_name))
87                return true;
88        }
89    }
90
91    return false;
92}
93
94PropertyValueArray PropertyNodeList::getValues() const
95{
96    PropertyValueArray propertyValue;
97
98    for (unsigned offset = 0; Node* node = item(offset); ++offset)
99        propertyValue.append(toHTMLElement(node)->itemValue());
100
101    return propertyValue;
102}
103
104} // namespace WebCore
105
106#endif // ENABLE(MICRODATA)
107