dom/base/ElementInlines.h
author Simon Whitehead <chemnova@gmail.com>
Sat, 13 May 2017 15:12:15 -0500
changeset 358329 633151f5d481d49bd39900d43e6a75d77459a7bb
parent 357707 2150351429b5c9515589facd9f2aefb1e4640842
child 363887 2694abedc65ad9723004aac9a54631fb03046610
permissions -rw-r--r--
servo: Merge #16829 - Disallow negative duration for animation and transition (from hiikezoe:disallow-negative-duration); r=emilio <!-- Please describe your changes on the following line: --> --- <!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: --> - [X] `./mach build -d` does not report any errors - [X] `./mach test-tidy` does not report any errors - [X] These changes fix #15343 <!-- Either: --> - [X] There are tests for these changes written by @simon-whitehead . Thank you! <!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.--> <!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. --> Source-Repo: https://github.com/servo/servo Source-Revision: 4613c0382ab76263fb8202ccf52f4c0520e44809

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_dom_ElementInlines_h
#define mozilla_dom_ElementInlines_h

#include "mozilla/dom/Element.h"
#include "mozilla/ServoBindings.h"
#include "nsIContentInlines.h"
#include "nsIDocument.h"
#include "nsIPresShell.h"
#include "nsIPresShellInlines.h"

namespace mozilla {
namespace dom {

inline void
Element::RegisterActivityObserver()
{
  OwnerDoc()->RegisterActivityObserver(this);
}

inline void
Element::UnregisterActivityObserver()
{
  OwnerDoc()->UnregisterActivityObserver(this);
}

inline Element*
Element::GetFlattenedTreeParentElement() const
{
  nsINode* parentNode = GetFlattenedTreeParentNode();
  if MOZ_LIKELY(parentNode && parentNode->IsElement()) {
    return parentNode->AsElement();
  }

  return nullptr;
}

inline Element*
Element::GetFlattenedTreeParentElementForStyle() const
{
  nsINode* parentNode = GetFlattenedTreeParentNodeForStyle();
  if MOZ_LIKELY(parentNode && parentNode->IsElement()) {
    return parentNode->AsElement();
  }

  return nullptr;
}

inline void
Element::NoteDirtyDescendantsForServo()
{
  if (!HasServoData()) {
    // The dirty descendants bit only applies to styled elements.
    return;
  }

  Element* curr = this;
  while (curr && !curr->HasDirtyDescendantsForServo()) {
    curr->SetHasDirtyDescendantsForServo();
    curr = curr->GetFlattenedTreeParentElementForStyle();
  }

  if (nsIPresShell* shell = OwnerDoc()->GetShell()) {
    shell->EnsureStyleFlush();
  }

  MOZ_ASSERT(DirtyDescendantsBitIsPropagatedForServo());
}

#ifdef DEBUG
inline bool
Element::DirtyDescendantsBitIsPropagatedForServo()
{
  Element* curr = this;
  while (curr) {
    if (!curr->HasDirtyDescendantsForServo()) {
      return false;
    }
    nsINode* parentNode = curr->GetParentNode();
    curr = curr->GetFlattenedTreeParentElementForStyle();
    MOZ_ASSERT_IF(!curr,
                  parentNode == OwnerDoc() ||
                  parentNode == parentNode->OwnerDoc()->GetRootElement());
  }
  return true;
}
#endif

} // namespace dom
} // namespace mozilla

#endif // mozilla_dom_ElementInlines_h