dom/base/DocumentInlines.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6 #ifndef mozilla_dom_DocumentInlines_h
   7 #define mozilla_dom_DocumentInlines_h
   8
   9 #include "mozilla/dom/Document.h"
  10
  11 #include "mozilla/PresShell.h"
  12 #include "mozilla/dom/HTMLBodyElement.h"
  13 #include "nsContentUtils.h"
  14 #include "nsPresContext.h"
  15 #include "nsStyleSheetService.h"
  16
  17 namespace mozilla::dom {
  18
  19 inline PresShell* Document::GetObservingPresShell() const {
  20   return mPresShell && mPresShell->IsObservingDocument() ? mPresShell : nullptr;
  21 }
  22
  23 inline nsPresContext* Document::GetPresContext() const {
  24   PresShell* presShell = GetPresShell();
  25   return presShell ? presShell->GetPresContext() : nullptr;
  26 }
  27
  28 inline HTMLBodyElement* Document::GetBodyElement() {
  29   return static_cast<HTMLBodyElement*>(GetHtmlChildElement(nsGkAtoms::body));
  30 }
  31
  32 inline void Document::SetServoRestyleRoot(nsINode* aRoot, uint32_t aDirtyBits) {
  33   MOZ_ASSERT(aRoot);
  34
  35   MOZ_ASSERT(!mServoRestyleRoot || mServoRestyleRoot == aRoot ||
  36              nsContentUtils::ContentIsFlattenedTreeDescendantOfForStyle(
  37                  mServoRestyleRoot, aRoot));
  38   MOZ_ASSERT(aRoot == aRoot->OwnerDocAsNode() || aRoot->IsElement());
  39   mServoRestyleRoot = aRoot;
  40   SetServoRestyleRootDirtyBits(aDirtyBits);
  41 }
  42
  43 // Note: we break this out of SetServoRestyleRoot so that callers can add
  44 // bits without doing a no-op assignment to the restyle root, which would
  45 // involve cycle-collected refcount traffic.
  46 inline void Document::SetServoRestyleRootDirtyBits(uint32_t aDirtyBits) {
  47   MOZ_ASSERT(aDirtyBits);
  48   MOZ_ASSERT((aDirtyBits & ~Element::kAllServoDescendantBits) == 0);
  49   MOZ_ASSERT((aDirtyBits & mServoRestyleRootDirtyBits) ==
  50              mServoRestyleRootDirtyBits);
  51   MOZ_ASSERT(mServoRestyleRoot);
  52   mServoRestyleRootDirtyBits = aDirtyBits;
  53 }
  54
  55 }  // namespace mozilla::dom
  56
  57 #endif  // mozilla_dom_DocumentInlines_h