Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 Adobe Systems Incorporated. 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 |
| 9 | * copyright notice, this list of conditions and the following |
| 10 | * disclaimer. |
| 11 | * 2. Redistributions in binary form must reproduce the above |
| 12 | * copyright notice, this list of conditions and the following |
| 13 | * disclaimer in the documentation and/or other materials |
| 14 | * provided with the distribution. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY |
| 17 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 19 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE |
| 20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, |
| 21 | * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 23 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR |
| 25 | * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF |
| 26 | * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 27 | * SUCH DAMAGE. |
| 28 | */ |
| 29 | #include "config.h" |
| 30 | #include "core/dom/DOMNamedFlowCollection.h" |
| 31 | |
| 32 | #include "RuntimeEnabledFeatures.h" |
| 33 | #include "core/dom/NamedFlow.h" |
| 34 | #include "core/dom/NamedFlowCollection.h" |
| 35 | |
| 36 | namespace WebCore { |
| 37 | |
| 38 | DOMNamedFlowCollection::DOMNamedFlowCollection(const Vector<NamedFlow*>& namedFlows) |
| 39 | { |
| 40 | ASSERT(RuntimeEnabledFeatures::cssRegionsEnabled()); |
Torne (Richard Coles) | e524955 | 2013-05-15 11:35:13 +0100 | [diff] [blame] | 41 | ScriptWrappable::init(this); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 42 | for (Vector<NamedFlow*>::const_iterator it = namedFlows.begin(); it != namedFlows.end(); ++it) |
| 43 | m_namedFlows.add(*it); |
| 44 | } |
| 45 | |
| 46 | unsigned long DOMNamedFlowCollection::length() const |
| 47 | { |
| 48 | return m_namedFlows.size(); |
| 49 | } |
| 50 | |
| 51 | PassRefPtr<NamedFlow> DOMNamedFlowCollection::item(unsigned long index) const |
| 52 | { |
| 53 | if (index >= static_cast<unsigned long>(m_namedFlows.size())) |
| 54 | return 0; |
| 55 | DOMNamedFlowSet::const_iterator it = m_namedFlows.begin(); |
| 56 | for (unsigned long i = 0; i < index; ++i) |
| 57 | ++it; |
| 58 | return *it; |
| 59 | } |
| 60 | |
| 61 | PassRefPtr<NamedFlow> DOMNamedFlowCollection::namedItem(const AtomicString& name) const |
| 62 | { |
| 63 | DOMNamedFlowSet::const_iterator it = m_namedFlows.find<String, DOMNamedFlowHashTranslator>(name); |
| 64 | if (it != m_namedFlows.end()) |
| 65 | return *it; |
| 66 | return 0; |
| 67 | } |
| 68 | |
| 69 | bool DOMNamedFlowCollection::hasNamedItem(const AtomicString& name) const |
| 70 | { |
| 71 | return namedItem(name); |
| 72 | } |
| 73 | |
| 74 | // The HashFunctions object used by the HashSet to compare between RefPtr<NamedFlows>. |
| 75 | // It is safe to set safeToCompareToEmptyOrDeleted because the HashSet will never contain null pointers or deleted values. |
| 76 | struct DOMNamedFlowCollection::DOMNamedFlowHashFunctions { |
| 77 | static unsigned hash(PassRefPtr<NamedFlow> key) { return DefaultHash<String>::Hash::hash(key->name()); } |
| 78 | static bool equal(PassRefPtr<NamedFlow> a, PassRefPtr<NamedFlow> b) { return a->name() == b->name(); } |
| 79 | static const bool safeToCompareToEmptyOrDeleted = true; |
| 80 | }; |
| 81 | |
| 82 | // The HashTranslator is used to lookup a RefPtr<NamedFlow> in the set using a name. |
| 83 | struct DOMNamedFlowCollection::DOMNamedFlowHashTranslator { |
| 84 | static unsigned hash(const String& key) { return DefaultHash<String>::Hash::hash(key); } |
| 85 | static bool equal(PassRefPtr<NamedFlow> a, const String& b) { return a->name() == b; } |
| 86 | }; |
| 87 | } // namespace WebCore |
| 88 | |
| 89 | |
| 90 | |