зеркало из https://github.com/mozilla/gecko-dev.git
98 строки
2.3 KiB
C++
98 строки
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_ElementInlines_h
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#define mozilla_dom_ElementInlines_h
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#include "mozilla/dom/Element.h"
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#include "mozilla/ServoBindings.h"
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#include "nsIContentInlines.h"
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#include "nsIDocument.h"
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namespace mozilla {
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namespace dom {
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inline void
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Element::RegisterActivityObserver()
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{
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OwnerDoc()->RegisterActivityObserver(this);
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}
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inline void
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Element::UnregisterActivityObserver()
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{
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OwnerDoc()->UnregisterActivityObserver(this);
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}
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inline Element*
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Element::GetFlattenedTreeParentElement() const
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{
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nsINode* parentNode = GetFlattenedTreeParentNode();
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if MOZ_LIKELY(parentNode && parentNode->IsElement()) {
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return parentNode->AsElement();
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}
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return nullptr;
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}
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inline Element*
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Element::GetFlattenedTreeParentElementForStyle() const
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{
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nsINode* parentNode = GetFlattenedTreeParentNodeForStyle();
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if MOZ_LIKELY(parentNode && parentNode->IsElement()) {
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return parentNode->AsElement();
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}
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return nullptr;
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}
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inline bool
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Element::ShouldTraverseForServo()
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{
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return HasDirtyDescendantsForServo() || Servo_Element_ShouldTraverse(this);
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}
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inline void
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Element::NoteDirtyDescendantsForServo()
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{
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if (!HasServoData()) {
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// The dirty descendants bit only applies to styled elements.
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return;
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}
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Element* curr = this;
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while (curr && !curr->HasDirtyDescendantsForServo()) {
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curr->SetHasDirtyDescendantsForServo();
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curr = curr->GetFlattenedTreeParentElementForStyle();
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}
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MOZ_ASSERT(DirtyDescendantsBitIsPropagatedForServo());
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}
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#ifdef DEBUG
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inline bool
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Element::DirtyDescendantsBitIsPropagatedForServo()
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{
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Element* curr = this;
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while (curr) {
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if (!curr->HasDirtyDescendantsForServo()) {
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return false;
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}
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nsINode* parentNode = curr->GetParentNode();
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curr = curr->GetFlattenedTreeParentElementForStyle();
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MOZ_ASSERT_IF(!curr,
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parentNode == OwnerDoc() ||
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parentNode == parentNode->OwnerDoc()->GetRootElement());
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}
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return true;
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}
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#endif
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_ElementInlines_h
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