Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 Google 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 are |
| 6 | * met: |
| 7 | * |
| 8 | * * Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * * Neither the name of Google Inc. nor the names of its |
| 11 | * contributors may be used to endorse or promote products derived from |
| 12 | * this software without specific prior written permission. |
| 13 | * |
| 14 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 15 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 16 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 17 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 18 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 19 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 20 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 21 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 22 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 23 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 24 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 25 | */ |
| 26 | |
| 27 | #include "config.h" |
| 28 | #include "core/dom/UserActionElementSet.h" |
| 29 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 30 | #include "core/dom/Element.h" |
| 31 | #include "core/dom/Node.h" |
| 32 | |
| 33 | namespace WebCore { |
| 34 | |
| 35 | UserActionElementSet::UserActionElementSet() |
| 36 | { |
| 37 | } |
| 38 | |
| 39 | UserActionElementSet::~UserActionElementSet() |
| 40 | { |
| 41 | } |
| 42 | |
| 43 | void UserActionElementSet::didDetach(Node* node) |
| 44 | { |
| 45 | ASSERT(node->isUserActionElement()); |
| 46 | clearFlags(toElement(node), IsActiveFlag | InActiveChainFlag | IsHoveredFlag); |
| 47 | } |
| 48 | |
| 49 | void UserActionElementSet::documentDidRemoveLastRef() |
| 50 | { |
| 51 | m_elements.clear(); |
| 52 | } |
| 53 | |
| 54 | bool UserActionElementSet::hasFlags(const Node* node, unsigned flags) const |
| 55 | { |
| 56 | ASSERT(node->isUserActionElement() && node->isElementNode()); |
| 57 | return hasFlags(toElement(node), flags); |
| 58 | } |
| 59 | |
| 60 | void UserActionElementSet::setFlags(Node* node, unsigned flags) |
| 61 | { |
| 62 | if (!node->isElementNode()) |
| 63 | return; |
| 64 | return setFlags(toElement(node), flags); |
| 65 | } |
| 66 | |
| 67 | void UserActionElementSet::clearFlags(Node* node, unsigned flags) |
| 68 | { |
| 69 | if (!node->isElementNode()) |
| 70 | return; |
| 71 | return clearFlags(toElement(node), flags); |
| 72 | } |
| 73 | |
| 74 | inline bool UserActionElementSet::hasFlags(const Element* element, unsigned flags) const |
| 75 | { |
| 76 | ASSERT(element->isUserActionElement()); |
| 77 | ElementFlagMap::const_iterator found = m_elements.find(const_cast<Element*>(element)); |
| 78 | if (found == m_elements.end()) |
| 79 | return false; |
| 80 | return found->value & flags; |
| 81 | } |
| 82 | |
| 83 | inline void UserActionElementSet::clearFlags(Element* element, unsigned flags) |
| 84 | { |
| 85 | if (!element->isUserActionElement()) { |
| 86 | ASSERT(m_elements.end() == m_elements.find(element)); |
| 87 | return; |
| 88 | } |
| 89 | |
| 90 | ElementFlagMap::iterator found = m_elements.find(element); |
| 91 | if (found == m_elements.end()) { |
| 92 | element->setUserActionElement(false); |
| 93 | return; |
| 94 | } |
| 95 | |
| 96 | unsigned updated = found->value & ~flags; |
| 97 | if (!updated) { |
| 98 | element->setUserActionElement(false); |
| 99 | m_elements.remove(found); |
| 100 | return; |
| 101 | } |
| 102 | |
| 103 | found->value = updated; |
| 104 | } |
| 105 | |
| 106 | inline void UserActionElementSet::setFlags(Element* element, unsigned flags) |
| 107 | { |
| 108 | ElementFlagMap::iterator result = m_elements.find(element); |
| 109 | if (result != m_elements.end()) { |
| 110 | ASSERT(element->isUserActionElement()); |
| 111 | result->value |= flags; |
| 112 | return; |
| 113 | } |
| 114 | |
| 115 | element->setUserActionElement(true); |
| 116 | m_elements.add(element, flags); |
| 117 | } |
| 118 | |
| 119 | } |