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/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "third_party/blink/renderer/core/dom/user_action_element_set.h"
#include "third_party/blink/renderer/core/dom/element.h"
#include "third_party/blink/renderer/core/dom/node.h"
namespace blink {
UserActionElementSet::UserActionElementSet() = default;
UserActionElementSet::~UserActionElementSet() = default;
void UserActionElementSet::DidDetach(Element& element) {
DCHECK(element.IsUserActionElement());
ClearFlags(&element, kIsActiveFlag | kInActiveChainFlag | kIsHoveredFlag |
kHasFocusWithinFlag);
}
bool UserActionElementSet::HasFlags(const Node* node, unsigned flags) const {
DCHECK(node->IsUserActionElement() && node->IsElementNode());
return HasFlags(ToElement(node), flags);
}
void UserActionElementSet::SetFlags(Node* node, unsigned flags) {
if (!node->IsElementNode())
return;
return SetFlags(ToElement(node), flags);
}
void UserActionElementSet::ClearFlags(Node* node, unsigned flags) {
if (!node->IsElementNode())
return;
return ClearFlags(ToElement(node), flags);
}
inline bool UserActionElementSet::HasFlags(const Element* element,
unsigned flags) const {
DCHECK(element->IsUserActionElement());
ElementFlagMap::const_iterator found =
elements_.find(const_cast<Element*>(element));
if (found == elements_.end())
return false;
return found->value & flags;
}
inline void UserActionElementSet::ClearFlags(Element* element, unsigned flags) {
if (!element->IsUserActionElement()) {
DCHECK(elements_.end() == elements_.find(element));
return;
}
ElementFlagMap::iterator found = elements_.find(element);
if (found == elements_.end()) {
element->SetUserActionElement(false);
return;
}
unsigned updated = found->value & ~flags;
if (!updated) {
element->SetUserActionElement(false);
elements_.erase(found);
return;
}
found->value = updated;
}
inline void UserActionElementSet::SetFlags(Element* element, unsigned flags) {
ElementFlagMap::iterator result = elements_.find(element);
if (result != elements_.end()) {
DCHECK(element->IsUserActionElement());
result->value |= flags;
return;
}
element->SetUserActionElement(true);
elements_.insert(element, flags);
}
void UserActionElementSet::Trace(blink::Visitor* visitor) {
visitor->Trace(elements_);
}
} // namespace blink
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