1 /*
2 * Copyright (C) 2007, 2008 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 "SelectorNodeList.h"
31
32 #include "CSSSelector.h"
33 #include "CSSSelectorList.h"
34 #include "CSSStyleSelector.h"
35 #include "Document.h"
36 #include "Element.h"
37 #include "HTMLNames.h"
38 #include "StaticNodeList.h"
39
40 namespace WebCore {
41
42 using namespace HTMLNames;
43
createSelectorNodeList(Node * rootNode,const CSSSelectorList & querySelectorList)44 PassRefPtr<StaticNodeList> createSelectorNodeList(Node* rootNode, const CSSSelectorList& querySelectorList)
45 {
46 Vector<RefPtr<Node> > nodes;
47 Document* document = rootNode->document();
48 CSSSelector* onlySelector = querySelectorList.hasOneSelector() ? querySelectorList.first() : 0;
49 bool strictParsing = !document->inQuirksMode();
50
51 CSSStyleSelector::SelectorChecker selectorChecker(document, strictParsing);
52
53 if (strictParsing && rootNode->inDocument() && onlySelector && onlySelector->m_match == CSSSelector::Id && !document->containsMultipleElementsWithId(onlySelector->value())) {
54 Element* element = document->getElementById(onlySelector->value());
55 if (element && (rootNode->isDocumentNode() || element->isDescendantOf(rootNode)) && selectorChecker.checkSelector(onlySelector, element))
56 nodes.append(element);
57 } else {
58 for (Node* n = rootNode->firstChild(); n; n = n->traverseNextNode(rootNode)) {
59 if (n->isElementNode()) {
60 Element* element = static_cast<Element*>(n);
61 for (CSSSelector* selector = querySelectorList.first(); selector; selector = CSSSelectorList::next(selector)) {
62 if (selectorChecker.checkSelector(selector, element)) {
63 nodes.append(n);
64 break;
65 }
66 }
67 }
68 }
69 }
70
71 return StaticNodeList::adopt(nodes);
72 }
73
74 } // namespace WebCore
75