зеркало из https://github.com/mozilla/gecko-dev.git
97 строки
3.5 KiB
C++
97 строки
3.5 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 nsIDocumentInlines_h
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#define nsIDocumentInlines_h
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#include "nsContentUtils.h"
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#include "nsIDocument.h"
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#include "mozilla/dom/HTMLBodyElement.h"
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#include "nsStyleSheetService.h"
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inline mozilla::dom::HTMLBodyElement*
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nsIDocument::GetBodyElement()
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{
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return static_cast<mozilla::dom::HTMLBodyElement*>(GetHtmlChildElement(nsGkAtoms::body));
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}
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template<typename T>
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size_t
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nsIDocument::FindDocStyleSheetInsertionPoint(
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const nsTArray<T>& aDocSheets,
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const mozilla::StyleSheet& aSheet)
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{
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nsStyleSheetService* sheetService = nsStyleSheetService::GetInstance();
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// lowest index first
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int32_t newDocIndex = IndexOfSheet(aSheet);
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size_t count = aDocSheets.Length();
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size_t index = 0;
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for (; index < count; index++) {
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auto* sheet = static_cast<mozilla::StyleSheet*>(aDocSheets[index]);
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MOZ_ASSERT(sheet);
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int32_t sheetDocIndex = IndexOfSheet(*sheet);
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if (sheetDocIndex > newDocIndex)
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break;
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// If the sheet is not owned by the document it can be an author
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// sheet registered at nsStyleSheetService or an additional author
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// sheet on the document, which means the new
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// doc sheet should end up before it.
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if (sheetDocIndex < 0) {
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if (sheetService) {
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auto& authorSheets =
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*sheetService->AuthorStyleSheets(GetStyleBackendType());
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if (authorSheets.IndexOf(sheet) != authorSheets.NoIndex) {
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break;
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}
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}
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if (sheet == GetFirstAdditionalAuthorSheet()) {
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break;
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}
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}
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}
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return size_t(index);
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}
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inline void
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nsIDocument::SetServoRestyleRoot(nsINode* aRoot, uint32_t aDirtyBits)
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{
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MOZ_ASSERT(aRoot);
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MOZ_ASSERT(aDirtyBits);
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MOZ_ASSERT((aDirtyBits & ~Element::kAllServoDescendantBits) == 0);
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MOZ_ASSERT((aDirtyBits & mServoRestyleRootDirtyBits) == mServoRestyleRootDirtyBits);
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// NOTE(emilio): The !aRoot->IsElement() check allows us to handle cases where
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// we change the restyle root during unbinding of a subtree where the root is
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// not unbound yet (and thus hasn't cleared the restyle root yet).
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//
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// In that case the tree can be in a somewhat inconsistent state (with the
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// document no longer being the subtree root of the current root, but the root
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// not having being unbound first).
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//
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// In that case, given there's no common ancestor, aRoot should be the
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// document, and we allow that, provided that the previous root will
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// eventually be unbound and the dirty bits will be cleared.
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//
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// If we want to enforce calling into this method with the tree in a
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// consistent state, we'd need to move all the state changes that happen on
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// content unbinding for parents, like fieldset validity stuff and ancestor
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// direction changes off script runners or, alternatively, nulling out the
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// document and parent node _after_ nulling out the children's, and then
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// remove that line.
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MOZ_ASSERT(!mServoRestyleRoot ||
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mServoRestyleRoot == aRoot ||
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!aRoot->IsElement() ||
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nsContentUtils::ContentIsFlattenedTreeDescendantOfForStyle(mServoRestyleRoot, aRoot));
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MOZ_ASSERT(aRoot == aRoot->OwnerDocAsNode() || aRoot->IsElement());
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mServoRestyleRoot = aRoot;
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mServoRestyleRootDirtyBits = aDirtyBits;
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}
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#endif // nsIDocumentInlines_h
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