зеркало из https://github.com/mozilla/gecko-dev.git
66 строки
2.1 KiB
C++
66 строки
2.1 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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/*
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* style sheet and style rule processor representing style attributes
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*/
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#include "nsHTMLCSSStyleSheet.h"
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#include "mozilla/MemoryReporting.h"
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#include "mozilla/DeclarationBlock.h"
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#include "nsPresContext.h"
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#include "mozilla/dom/Element.h"
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#include "nsAttrValue.h"
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#include "nsAttrValueInlines.h"
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#include "nsCSSPseudoElements.h"
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#include "mozilla/RestyleManager.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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nsHTMLCSSStyleSheet::nsHTMLCSSStyleSheet() = default;
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nsHTMLCSSStyleSheet::~nsHTMLCSSStyleSheet() {
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// We may go away before all of our cached style attributes do,
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// so clean up any that are left.
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for (auto iter = mCachedStyleAttrs.Iter(); !iter.Done(); iter.Next()) {
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MiscContainer*& value = iter.Data();
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// Ideally we'd just call MiscContainer::Evict, but we can't do that since
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// we're iterating the hashtable.
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if (value->mType == nsAttrValue::eCSSDeclaration) {
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DeclarationBlock* declaration = value->mValue.mCSSDeclaration;
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declaration->SetHTMLCSSStyleSheet(nullptr);
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} else {
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MOZ_ASSERT_UNREACHABLE("unexpected cached nsAttrValue type");
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}
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value->mValue.mCached = 0;
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iter.Remove();
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}
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}
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void nsHTMLCSSStyleSheet::CacheStyleAttr(const nsAString& aSerialized,
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MiscContainer* aValue) {
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mCachedStyleAttrs.InsertOrUpdate(aSerialized, aValue);
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}
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void nsHTMLCSSStyleSheet::EvictStyleAttr(const nsAString& aSerialized,
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MiscContainer* aValue) {
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#ifdef DEBUG
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{
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NS_ASSERTION(aValue == mCachedStyleAttrs.Get(aSerialized),
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"Cached value does not match?!");
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}
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#endif
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mCachedStyleAttrs.Remove(aSerialized);
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}
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MiscContainer* nsHTMLCSSStyleSheet::LookupStyleAttr(
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const nsAString& aSerialized) {
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return mCachedStyleAttrs.Get(aSerialized);
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}
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