forked from mirrors/gecko-dev
7eae8c1064
Backed out changeset 61af32f40777 (bug 1770944) Backed out changeset 4ff0c45db93b (bug 1770944) Backed out changeset 8a217eff7bcd (bug 1770944) Backed out changeset 6435f48c96bf (bug 1770944) Backed out changeset 0d2432765ca0 (bug 1770944) Backed out changeset 58e02566db85 (bug 1770944) Backed out changeset 0a8c4c2460ee (bug 1770944) Backed out changeset 9416bafd9982 (bug 1770944) Backed out changeset 79de4f83fe2e (bug 1770944) Backed out changeset 63ac518aceb0 (bug 1770944) Backed out changeset 14952f872b77 (bug 1770944) Backed out changeset f65e0967ad75 (bug 1770944) Backed out changeset bd53c42038f7 (bug 1770944) Backed out changeset 36c378ba8212 (bug 1770944) Backed out changeset 9ba54ab06348 (bug 1770944) Backed out changeset fb5a54b3cbe9 (bug 1770944)
1819 lines
63 KiB
C++
1819 lines
63 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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/* FFI functions for Servo to call into Gecko */
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#include "mozilla/GeckoBindings.h"
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#include "ChildIterator.h"
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#include "ErrorReporter.h"
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#include "gfxFontFeatures.h"
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#include "gfxMathTable.h"
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#include "gfxTextRun.h"
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#include "imgLoader.h"
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#include "nsAnimationManager.h"
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#include "nsAttrValueInlines.h"
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#include "nsCSSFrameConstructor.h"
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#include "nsCSSProps.h"
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#include "nsCSSPseudoElements.h"
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#include "nsContentUtils.h"
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#include "nsDOMTokenList.h"
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#include "nsDeviceContext.h"
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#include "nsLayoutUtils.h"
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#include "nsIContentInlines.h"
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#include "mozilla/dom/DocumentInlines.h"
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#include "nsILoadContext.h"
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#include "nsIFrame.h"
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#include "nsIMozBrowserFrame.h"
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#include "nsINode.h"
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#include "nsIURI.h"
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#include "nsFontMetrics.h"
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#include "nsNameSpaceManager.h"
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#include "nsNetUtil.h"
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#include "nsProxyRelease.h"
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#include "nsString.h"
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#include "nsStyleStruct.h"
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#include "nsStyleUtil.h"
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#include "nsTArray.h"
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#include "nsTransitionManager.h"
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#include "nsWindowSizes.h"
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#include "mozilla/css/ImageLoader.h"
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#include "mozilla/DeclarationBlock.h"
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#include "mozilla/AttributeStyles.h"
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#include "mozilla/EffectCompositor.h"
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#include "mozilla/EffectSet.h"
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#include "mozilla/FontPropertyTypes.h"
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#include "mozilla/Hal.h"
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#include "mozilla/Keyframe.h"
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#include "mozilla/Mutex.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/ServoElementSnapshot.h"
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#include "mozilla/ShadowParts.h"
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#include "mozilla/StaticPresData.h"
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#include "mozilla/StaticPrefs_browser.h"
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#include "mozilla/StaticPrefs_layout.h"
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#include "mozilla/StaticPtr.h"
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#include "mozilla/RestyleManager.h"
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#include "mozilla/SizeOfState.h"
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#include "mozilla/StyleAnimationValue.h"
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#include "mozilla/ServoBindings.h"
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#include "mozilla/ServoTraversalStatistics.h"
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#include "mozilla/Telemetry.h"
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#include "mozilla/TimelineManager.h"
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#include "mozilla/RWLock.h"
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#include "mozilla/dom/Element.h"
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#include "mozilla/dom/ElementInlines.h"
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#include "mozilla/dom/HTMLImageElement.h"
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#include "mozilla/dom/HTMLTableCellElement.h"
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#include "mozilla/dom/HTMLBodyElement.h"
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#include "mozilla/dom/HTMLSelectElement.h"
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#include "mozilla/dom/HTMLSlotElement.h"
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#include "mozilla/dom/MediaList.h"
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#include "mozilla/dom/ReferrerInfo.h"
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#include "mozilla/dom/SVGElement.h"
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#include "mozilla/dom/WorkerCommon.h"
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#include "mozilla/LookAndFeel.h"
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#include "mozilla/URLExtraData.h"
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#include "mozilla/dom/CSSMozDocumentRule.h"
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#if defined(MOZ_MEMORY)
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# include "mozmemory.h"
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#endif
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using namespace mozilla;
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using namespace mozilla::css;
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using namespace mozilla::dom;
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// Definitions of the global traversal stats.
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bool ServoTraversalStatistics::sActive = false;
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ServoTraversalStatistics ServoTraversalStatistics::sSingleton;
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static StaticAutoPtr<RWLock> sServoFFILock;
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static const LangGroupFontPrefs* ThreadSafeGetLangGroupFontPrefs(
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const Document& aDocument, nsAtom* aLanguage) {
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bool needsCache = false;
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{
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AutoReadLock guard(*sServoFFILock);
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if (auto* prefs = aDocument.GetFontPrefsForLang(aLanguage, &needsCache)) {
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return prefs;
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}
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}
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MOZ_ASSERT(needsCache);
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AutoWriteLock guard(*sServoFFILock);
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return aDocument.GetFontPrefsForLang(aLanguage);
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}
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static const nsFont& ThreadSafeGetDefaultVariableFont(const Document& aDocument,
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nsAtom* aLanguage) {
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return ThreadSafeGetLangGroupFontPrefs(aDocument, aLanguage)
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->mDefaultVariableFont;
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}
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/*
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* Does this child count as significant for selector matching?
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*
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* See nsStyleUtil::IsSignificantChild for details.
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*/
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bool Gecko_IsSignificantChild(const nsINode* aNode,
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bool aWhitespaceIsSignificant) {
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return nsStyleUtil::ThreadSafeIsSignificantChild(aNode->AsContent(),
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aWhitespaceIsSignificant);
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}
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const nsINode* Gecko_GetLastChild(const nsINode* aNode) {
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return aNode->GetLastChild();
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}
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const nsINode* Gecko_GetFlattenedTreeParentNode(const nsINode* aNode) {
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return aNode->GetFlattenedTreeParentNodeForStyle();
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}
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const Element* Gecko_GetBeforeOrAfterPseudo(const Element* aElement,
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bool aIsBefore) {
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MOZ_ASSERT(aElement);
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MOZ_ASSERT(aElement->HasProperties());
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return aIsBefore ? nsLayoutUtils::GetBeforePseudo(aElement)
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: nsLayoutUtils::GetAfterPseudo(aElement);
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}
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const Element* Gecko_GetMarkerPseudo(const Element* aElement) {
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MOZ_ASSERT(aElement);
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MOZ_ASSERT(aElement->HasProperties());
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return nsLayoutUtils::GetMarkerPseudo(aElement);
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}
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nsTArray<nsIContent*>* Gecko_GetAnonymousContentForElement(
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const Element* aElement) {
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nsIAnonymousContentCreator* ac = do_QueryFrame(aElement->GetPrimaryFrame());
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if (!ac) {
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return nullptr;
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}
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auto* array = new nsTArray<nsIContent*>();
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nsContentUtils::AppendNativeAnonymousChildren(aElement, *array, 0);
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return array;
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}
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void Gecko_DestroyAnonymousContentList(nsTArray<nsIContent*>* aAnonContent) {
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MOZ_ASSERT(aAnonContent);
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delete aAnonContent;
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}
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const nsTArray<RefPtr<nsINode>>* Gecko_GetAssignedNodes(
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const Element* aElement) {
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MOZ_ASSERT(HTMLSlotElement::FromNode(aElement));
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return &static_cast<const HTMLSlotElement*>(aElement)->AssignedNodes();
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}
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void Gecko_GetQueryContainerSize(const Element* aElement, nscoord* aOutWidth,
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nscoord* aOutHeight) {
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MOZ_ASSERT(aElement);
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const nsIFrame* frame = aElement->GetPrimaryFrame();
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if (!frame) {
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return;
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}
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const auto containAxes = frame->GetContainSizeAxes();
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if (!containAxes.IsAny()) {
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return;
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}
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nsSize size = frame->GetContentRectRelativeToSelf().Size();
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bool isVertical = frame->GetWritingMode().IsVertical();
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if (isVertical ? containAxes.mBContained : containAxes.mIContained) {
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*aOutWidth = size.width;
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}
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if (isVertical ? containAxes.mIContained : containAxes.mBContained) {
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*aOutHeight = size.height;
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}
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}
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void Gecko_ComputedStyle_Init(ComputedStyle* aStyle,
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const ServoComputedData* aValues,
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PseudoStyleType aPseudoType) {
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new (KnownNotNull, aStyle)
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ComputedStyle(aPseudoType, ServoComputedDataForgotten(aValues));
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}
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ServoComputedData::ServoComputedData(const ServoComputedDataForgotten aValue) {
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PodAssign(this, aValue.mPtr);
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}
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MOZ_DEFINE_MALLOC_ENCLOSING_SIZE_OF(ServoStyleStructsMallocEnclosingSizeOf)
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void ServoComputedData::AddSizeOfExcludingThis(nsWindowSizes& aSizes) const {
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// Note: GetStyleFoo() returns a pointer to an nsStyleFoo that sits within a
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// servo_arc::Arc, i.e. it is preceded by a word-sized refcount. So we need
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// to measure it with a function that can handle an interior pointer. We use
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// ServoStyleStructsEnclosingMallocSizeOf to clearly identify in DMD's
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// output the memory measured here.
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#define STYLE_STRUCT(name_) \
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static_assert(alignof(nsStyle##name_) <= sizeof(size_t), \
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"alignment will break AddSizeOfExcludingThis()"); \
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const void* p##name_ = Style##name_(); \
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if (!aSizes.mState.HaveSeenPtr(p##name_)) { \
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aSizes.mStyleSizes.NS_STYLE_SIZES_FIELD(name_) += \
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ServoStyleStructsMallocEnclosingSizeOf(p##name_); \
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}
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#include "nsStyleStructList.h"
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#undef STYLE_STRUCT
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if (visited_style && !aSizes.mState.HaveSeenPtr(visited_style)) {
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visited_style->AddSizeOfIncludingThis(aSizes,
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&aSizes.mLayoutComputedValuesVisited);
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}
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// Measurement of the following members may be added later if DMD finds it is
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// worthwhile:
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// - custom_properties
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// - writing_mode
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// - rules
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// - font_computation_data
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}
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void Gecko_ComputedStyle_Destroy(ComputedStyle* aStyle) {
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aStyle->~ComputedStyle();
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}
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void Gecko_ConstructStyleChildrenIterator(const Element* aElement,
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StyleChildrenIterator* aIterator) {
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MOZ_ASSERT(aElement);
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MOZ_ASSERT(aIterator);
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new (aIterator) StyleChildrenIterator(aElement);
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}
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void Gecko_DestroyStyleChildrenIterator(StyleChildrenIterator* aIterator) {
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MOZ_ASSERT(aIterator);
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aIterator->~StyleChildrenIterator();
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}
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const nsINode* Gecko_GetNextStyleChild(StyleChildrenIterator* aIterator) {
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MOZ_ASSERT(aIterator);
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return aIterator->GetNextChild();
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}
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bool Gecko_VisitedStylesEnabled(const Document* aDoc) {
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MOZ_ASSERT(aDoc);
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MOZ_ASSERT(NS_IsMainThread());
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if (!StaticPrefs::layout_css_visited_links_enabled()) {
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return false;
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}
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if (aDoc->IsBeingUsedAsImage()) {
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return false;
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}
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nsILoadContext* loadContext = aDoc->GetLoadContext();
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if (loadContext && loadContext->UsePrivateBrowsing()) {
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return false;
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}
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return true;
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}
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ElementState::InternalType Gecko_ElementState(const Element* aElement) {
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return aElement->StyleState().GetInternalValue();
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}
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bool Gecko_IsRootElement(const Element* aElement) {
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return aElement->OwnerDoc()->GetRootElement() == aElement;
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}
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void Gecko_NoteDirtyElement(const Element* aElement) {
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MOZ_ASSERT(NS_IsMainThread());
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const_cast<Element*>(aElement)->NoteDirtyForServo();
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}
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void Gecko_NoteDirtySubtreeForInvalidation(const Element* aElement) {
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MOZ_ASSERT(NS_IsMainThread());
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const_cast<Element*>(aElement)->NoteDirtySubtreeForServo();
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}
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void Gecko_NoteAnimationOnlyDirtyElement(const Element* aElement) {
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MOZ_ASSERT(NS_IsMainThread());
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const_cast<Element*>(aElement)->NoteAnimationOnlyDirtyForServo();
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}
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bool Gecko_AnimationNameMayBeReferencedFromStyle(
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const nsPresContext* aPresContext, nsAtom* aName) {
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MOZ_ASSERT(aPresContext);
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return aPresContext->AnimationManager()->AnimationMayBeReferenced(aName);
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}
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float Gecko_GetScrollbarInlineSize(const nsPresContext* aPc) {
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MOZ_ASSERT(aPc);
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AutoWriteLock guard(*sServoFFILock); // We read some look&feel values.
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auto overlay = aPc->UseOverlayScrollbars() ? nsITheme::Overlay::Yes
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: nsITheme::Overlay::No;
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LayoutDeviceIntCoord size =
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aPc->Theme()->GetScrollbarSize(aPc, StyleScrollbarWidth::Auto, overlay);
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return aPc->DevPixelsToFloatCSSPixels(size);
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}
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PseudoStyleType Gecko_GetImplementedPseudo(const Element* aElement) {
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return aElement->GetPseudoElementType();
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}
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uint32_t Gecko_CalcStyleDifference(const ComputedStyle* aOldStyle,
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const ComputedStyle* aNewStyle,
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bool* aAnyStyleStructChanged,
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bool* aOnlyResetStructsChanged) {
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MOZ_ASSERT(aOldStyle);
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MOZ_ASSERT(aNewStyle);
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uint32_t equalStructs;
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nsChangeHint result =
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aOldStyle->CalcStyleDifference(*aNewStyle, &equalStructs);
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*aAnyStyleStructChanged =
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equalStructs != StyleStructConstants::kAllStructsMask;
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const auto kInheritedStructsMask =
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StyleStructConstants::kInheritedStructsMask;
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*aOnlyResetStructsChanged =
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(equalStructs & kInheritedStructsMask) == kInheritedStructsMask;
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return result;
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}
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nscoord Gecko_CalcLineHeight(const StyleLineHeight* aLh,
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const nsPresContext* aPc, bool aVertical,
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const nsStyleFont* aAgainstFont,
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const mozilla::dom::Element* aElement) {
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// Normal line-height depends on font metrics.
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AutoWriteLock guard(*sServoFFILock);
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return ReflowInput::CalcLineHeight(*aLh, *aAgainstFont,
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const_cast<nsPresContext*>(aPc), aVertical,
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aElement, NS_UNCONSTRAINEDSIZE, 1.0f);
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}
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const ServoElementSnapshot* Gecko_GetElementSnapshot(
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const ServoElementSnapshotTable* aTable, const Element* aElement) {
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MOZ_ASSERT(aTable);
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MOZ_ASSERT(aElement);
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return aTable->Get(const_cast<Element*>(aElement));
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}
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bool Gecko_HaveSeenPtr(SeenPtrs* aTable, const void* aPtr) {
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MOZ_ASSERT(NS_IsMainThread());
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MOZ_ASSERT(aTable);
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// Empty Rust allocations are indicated by small values up to the alignment
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// of the relevant type. We shouldn't see anything like that here.
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MOZ_ASSERT(uintptr_t(aPtr) > 16);
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return aTable->HaveSeenPtr(aPtr);
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}
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const StyleLockedDeclarationBlock* Gecko_GetStyleAttrDeclarationBlock(
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const Element* aElement) {
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DeclarationBlock* decl = aElement->GetInlineStyleDeclaration();
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if (!decl) {
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return nullptr;
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}
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return decl->Raw();
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}
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void Gecko_UnsetDirtyStyleAttr(const Element* aElement) {
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DeclarationBlock* decl = aElement->GetInlineStyleDeclaration();
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if (!decl) {
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return;
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}
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decl->UnsetDirty();
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}
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const StyleLockedDeclarationBlock*
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Gecko_GetHTMLPresentationAttrDeclarationBlock(const Element* aElement) {
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return aElement->GetMappedAttributeStyle();
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}
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const StyleLockedDeclarationBlock* Gecko_GetExtraContentStyleDeclarations(
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const Element* aElement) {
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if (const auto* cell = HTMLTableCellElement::FromNode(aElement)) {
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return cell->GetMappedAttributesInheritedFromTable();
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}
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if (const auto* img = HTMLImageElement::FromNode(aElement)) {
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return img->GetMappedAttributesFromSource();
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}
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return nullptr;
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}
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const StyleLockedDeclarationBlock* Gecko_GetUnvisitedLinkAttrDeclarationBlock(
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const Element* aElement) {
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AttributeStyles* attrStyles = aElement->OwnerDoc()->GetAttributeStyles();
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if (!attrStyles) {
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return nullptr;
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}
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return attrStyles->GetServoUnvisitedLinkDecl();
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}
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StyleSheet* Gecko_StyleSheet_Clone(const StyleSheet* aSheet,
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const StyleSheet* aNewParentSheet) {
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MOZ_ASSERT(aSheet);
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MOZ_ASSERT(aSheet->GetParentSheet(), "Should only be used for @import");
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MOZ_ASSERT(aNewParentSheet, "Wat");
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RefPtr<StyleSheet> newSheet = aSheet->Clone(nullptr, nullptr);
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// NOTE(emilio): This code runs in the StylesheetInner constructor, which
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// means that the inner pointer of `aNewParentSheet` still points to the old
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// one.
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//
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// So we _don't_ update neither the parent pointer of the stylesheet, nor the
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// child list (yet). This is fixed up in that same constructor.
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return static_cast<StyleSheet*>(newSheet.forget().take());
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}
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void Gecko_StyleSheet_AddRef(const StyleSheet* aSheet) {
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MOZ_ASSERT(NS_IsMainThread());
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const_cast<StyleSheet*>(aSheet)->AddRef();
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}
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void Gecko_StyleSheet_Release(const StyleSheet* aSheet) {
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MOZ_ASSERT(NS_IsMainThread());
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const_cast<StyleSheet*>(aSheet)->Release();
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}
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const StyleLockedDeclarationBlock* Gecko_GetVisitedLinkAttrDeclarationBlock(
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const Element* aElement) {
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AttributeStyles* attrStyles = aElement->OwnerDoc()->GetAttributeStyles();
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if (!attrStyles) {
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return nullptr;
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}
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return attrStyles->GetServoVisitedLinkDecl();
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}
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const StyleLockedDeclarationBlock* Gecko_GetActiveLinkAttrDeclarationBlock(
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const Element* aElement) {
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AttributeStyles* attrStyles = aElement->OwnerDoc()->GetAttributeStyles();
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if (!attrStyles) {
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return nullptr;
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}
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return attrStyles->GetServoActiveLinkDecl();
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}
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bool Gecko_GetAnimationRule(const Element* aElement,
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EffectCompositor::CascadeLevel aCascadeLevel,
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StyleAnimationValueMap* aAnimationValues) {
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MOZ_ASSERT(aElement);
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Document* doc = aElement->GetComposedDoc();
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if (!doc) {
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return false;
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}
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nsPresContext* presContext = doc->GetPresContext();
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|
if (!presContext) {
|
|
return false;
|
|
}
|
|
|
|
const auto [element, pseudoType] =
|
|
AnimationUtils::GetElementPseudoPair(aElement);
|
|
return presContext->EffectCompositor()->GetServoAnimationRule(
|
|
element, pseudoType, aCascadeLevel, aAnimationValues);
|
|
}
|
|
|
|
bool Gecko_StyleAnimationsEquals(const nsStyleAutoArray<StyleAnimation>* aA,
|
|
const nsStyleAutoArray<StyleAnimation>* aB) {
|
|
return *aA == *aB;
|
|
}
|
|
|
|
bool Gecko_StyleScrollTimelinesEquals(
|
|
const nsStyleAutoArray<StyleScrollTimeline>* aA,
|
|
const nsStyleAutoArray<StyleScrollTimeline>* aB) {
|
|
return *aA == *aB;
|
|
}
|
|
|
|
bool Gecko_StyleViewTimelinesEquals(
|
|
const nsStyleAutoArray<StyleViewTimeline>* aA,
|
|
const nsStyleAutoArray<StyleViewTimeline>* aB) {
|
|
return *aA == *aB;
|
|
}
|
|
|
|
void Gecko_UpdateAnimations(const Element* aElement,
|
|
const ComputedStyle* aOldComputedData,
|
|
const ComputedStyle* aComputedData,
|
|
UpdateAnimationsTasks aTasks) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(aElement);
|
|
|
|
if (!aElement->IsInComposedDoc()) {
|
|
return;
|
|
}
|
|
|
|
nsPresContext* presContext = nsContentUtils::GetContextForContent(aElement);
|
|
if (!presContext || !presContext->IsDynamic()) {
|
|
return;
|
|
}
|
|
|
|
nsAutoAnimationMutationBatch mb(aElement->OwnerDoc());
|
|
|
|
const auto [element, pseudoType] =
|
|
AnimationUtils::GetElementPseudoPair(aElement);
|
|
|
|
// Handle scroll/view timelines first because CSS animations may refer to the
|
|
// timeline defined by itself.
|
|
if (aTasks & UpdateAnimationsTasks::ScrollTimelines) {
|
|
presContext->TimelineManager()->UpdateTimelines(
|
|
const_cast<Element*>(element), pseudoType, aComputedData,
|
|
TimelineManager::ProgressTimelineType::Scroll);
|
|
}
|
|
|
|
if (aTasks & UpdateAnimationsTasks::ViewTimelines) {
|
|
presContext->TimelineManager()->UpdateTimelines(
|
|
const_cast<Element*>(element), pseudoType, aComputedData,
|
|
TimelineManager::ProgressTimelineType::View);
|
|
}
|
|
|
|
if (aTasks & UpdateAnimationsTasks::CSSAnimations) {
|
|
presContext->AnimationManager()->UpdateAnimations(
|
|
const_cast<Element*>(element), pseudoType, aComputedData);
|
|
}
|
|
|
|
// aComputedData might be nullptr if the target element is now in a
|
|
// display:none subtree. We still call Gecko_UpdateAnimations in this case
|
|
// because we need to stop CSS animations in the display:none subtree.
|
|
// However, we don't need to update transitions since they are stopped by
|
|
// RestyleManager::AnimationsWithDestroyedFrame so we just return early
|
|
// here.
|
|
if (!aComputedData) {
|
|
return;
|
|
}
|
|
|
|
if (aTasks & UpdateAnimationsTasks::CSSTransitions) {
|
|
MOZ_ASSERT(aOldComputedData);
|
|
presContext->TransitionManager()->UpdateTransitions(
|
|
const_cast<Element*>(element), pseudoType, *aOldComputedData,
|
|
*aComputedData);
|
|
}
|
|
|
|
if (aTasks & UpdateAnimationsTasks::EffectProperties) {
|
|
presContext->EffectCompositor()->UpdateEffectProperties(
|
|
aComputedData, const_cast<Element*>(element), pseudoType);
|
|
}
|
|
|
|
if (aTasks & UpdateAnimationsTasks::CascadeResults) {
|
|
EffectSet* effectSet = EffectSet::Get(element, pseudoType);
|
|
// CSS animations/transitions might have been destroyed as part of the above
|
|
// steps so before updating cascade results, we check if there are still any
|
|
// animations to update.
|
|
if (effectSet) {
|
|
// We call UpdateCascadeResults directly (intead of
|
|
// MaybeUpdateCascadeResults) since we know for sure that the cascade has
|
|
// changed, but we were unable to call MarkCascadeUpdated when we noticed
|
|
// it since we avoid mutating state as part of the Servo parallel
|
|
// traversal.
|
|
presContext->EffectCompositor()->UpdateCascadeResults(
|
|
*effectSet, const_cast<Element*>(element), pseudoType);
|
|
}
|
|
}
|
|
|
|
if (aTasks & UpdateAnimationsTasks::DisplayChangedFromNone) {
|
|
presContext->EffectCompositor()->RequestRestyle(
|
|
const_cast<Element*>(element), pseudoType,
|
|
EffectCompositor::RestyleType::Standard,
|
|
EffectCompositor::CascadeLevel::Animations);
|
|
}
|
|
}
|
|
|
|
size_t Gecko_GetAnimationEffectCount(const Element* aElementOrPseudo) {
|
|
const auto [element, pseudoType] =
|
|
AnimationUtils::GetElementPseudoPair(aElementOrPseudo);
|
|
|
|
EffectSet* effectSet = EffectSet::Get(element, pseudoType);
|
|
return effectSet ? effectSet->Count() : 0;
|
|
}
|
|
|
|
bool Gecko_ElementHasAnimations(const Element* aElement) {
|
|
const auto [element, pseudoType] =
|
|
AnimationUtils::GetElementPseudoPair(aElement);
|
|
return !!EffectSet::Get(element, pseudoType);
|
|
}
|
|
|
|
bool Gecko_ElementHasCSSAnimations(const Element* aElement) {
|
|
const auto [element, pseudoType] =
|
|
AnimationUtils::GetElementPseudoPair(aElement);
|
|
auto* collection =
|
|
nsAnimationManager::CSSAnimationCollection::Get(element, pseudoType);
|
|
return collection && !collection->mAnimations.IsEmpty();
|
|
}
|
|
|
|
bool Gecko_ElementHasCSSTransitions(const Element* aElement) {
|
|
const auto [element, pseudoType] =
|
|
AnimationUtils::GetElementPseudoPair(aElement);
|
|
auto* collection =
|
|
nsTransitionManager::CSSTransitionCollection::Get(element, pseudoType);
|
|
return collection && !collection->mAnimations.IsEmpty();
|
|
}
|
|
|
|
size_t Gecko_ElementTransitions_Length(const Element* aElement) {
|
|
const auto [element, pseudoType] =
|
|
AnimationUtils::GetElementPseudoPair(aElement);
|
|
auto* collection =
|
|
nsTransitionManager::CSSTransitionCollection::Get(element, pseudoType);
|
|
return collection ? collection->mAnimations.Length() : 0;
|
|
}
|
|
|
|
static CSSTransition* GetCurrentTransitionAt(const Element* aElement,
|
|
size_t aIndex) {
|
|
const auto [element, pseudoType] =
|
|
AnimationUtils::GetElementPseudoPair(aElement);
|
|
auto* collection =
|
|
nsTransitionManager::CSSTransitionCollection ::Get(element, pseudoType);
|
|
if (!collection) {
|
|
return nullptr;
|
|
}
|
|
return collection->mAnimations.SafeElementAt(aIndex);
|
|
}
|
|
|
|
nsCSSPropertyID Gecko_ElementTransitions_PropertyAt(const Element* aElement,
|
|
size_t aIndex) {
|
|
CSSTransition* transition = GetCurrentTransitionAt(aElement, aIndex);
|
|
return transition ? transition->TransitionProperty().mID
|
|
: nsCSSPropertyID::eCSSProperty_UNKNOWN;
|
|
}
|
|
|
|
const StyleAnimationValue* Gecko_ElementTransitions_EndValueAt(
|
|
const Element* aElement, size_t aIndex) {
|
|
CSSTransition* transition = GetCurrentTransitionAt(aElement, aIndex);
|
|
return transition ? transition->ToValue().mServo.get() : nullptr;
|
|
}
|
|
|
|
double Gecko_GetProgressFromComputedTiming(const ComputedTiming* aTiming) {
|
|
return aTiming->mProgress.Value();
|
|
}
|
|
|
|
double Gecko_GetPositionInSegment(const AnimationPropertySegment* aSegment,
|
|
double aProgress, bool aBeforeFlag) {
|
|
MOZ_ASSERT(aSegment->mFromKey < aSegment->mToKey,
|
|
"The segment from key should be less than to key");
|
|
|
|
double positionInSegment = (aProgress - aSegment->mFromKey) /
|
|
// To avoid floating precision inaccuracies, make
|
|
// sure we calculate both the numerator and
|
|
// denominator using double precision.
|
|
(double(aSegment->mToKey) - aSegment->mFromKey);
|
|
|
|
return StyleComputedTimingFunction::GetPortion(
|
|
aSegment->mTimingFunction, positionInSegment, aBeforeFlag);
|
|
}
|
|
|
|
const StyleAnimationValue* Gecko_AnimationGetBaseStyle(
|
|
const RawServoAnimationValueTable* aBaseStyles,
|
|
const mozilla::AnimatedPropertyID* aProperty) {
|
|
const auto* base = reinterpret_cast<const nsRefPtrHashtable<
|
|
nsGenericHashKey<AnimatedPropertyID>, StyleAnimationValue>*>(aBaseStyles);
|
|
return base->GetWeak(*aProperty);
|
|
}
|
|
|
|
void Gecko_FillAllImageLayers(nsStyleImageLayers* aLayers, uint32_t aMaxLen) {
|
|
aLayers->FillAllLayers(aMaxLen);
|
|
}
|
|
|
|
bool Gecko_IsDocumentBody(const Element* aElement) {
|
|
Document* doc = aElement->GetUncomposedDoc();
|
|
return doc && doc->GetBodyElement() == aElement;
|
|
}
|
|
|
|
bool Gecko_IsDarkColorScheme(const Document* aDoc,
|
|
const StyleColorScheme* aStyle) {
|
|
return LookAndFeel::ColorSchemeForStyle(*aDoc, aStyle->bits) ==
|
|
ColorScheme::Dark;
|
|
}
|
|
|
|
nscolor Gecko_ComputeSystemColor(StyleSystemColor aColor, const Document* aDoc,
|
|
const StyleColorScheme* aStyle) {
|
|
auto colorScheme = LookAndFeel::ColorSchemeForStyle(*aDoc, aStyle->bits);
|
|
const auto& prefs = PreferenceSheet::PrefsFor(*aDoc);
|
|
if (prefs.mMustUseLightSystemColors) {
|
|
colorScheme = ColorScheme::Light;
|
|
}
|
|
const auto& colors = prefs.ColorsFor(colorScheme);
|
|
switch (aColor) {
|
|
case StyleSystemColor::Canvastext:
|
|
return colors.mDefault;
|
|
case StyleSystemColor::Canvas:
|
|
return colors.mDefaultBackground;
|
|
case StyleSystemColor::Linktext:
|
|
return colors.mLink;
|
|
case StyleSystemColor::Activetext:
|
|
return colors.mActiveLink;
|
|
case StyleSystemColor::Visitedtext:
|
|
return colors.mVisitedLink;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
auto useStandins = LookAndFeel::ShouldUseStandins(*aDoc, aColor);
|
|
|
|
AutoWriteLock guard(*sServoFFILock);
|
|
return LookAndFeel::Color(aColor, colorScheme, useStandins);
|
|
}
|
|
|
|
int32_t Gecko_GetLookAndFeelInt(int32_t aId) {
|
|
auto intId = static_cast<LookAndFeel::IntID>(aId);
|
|
AutoWriteLock guard(*sServoFFILock);
|
|
return LookAndFeel::GetInt(intId);
|
|
}
|
|
|
|
float Gecko_GetLookAndFeelFloat(int32_t aId) {
|
|
auto id = static_cast<LookAndFeel::FloatID>(aId);
|
|
AutoWriteLock guard(*sServoFFILock);
|
|
return LookAndFeel::GetFloat(id);
|
|
}
|
|
|
|
bool Gecko_MatchLang(const Element* aElement, nsAtom* aOverrideLang,
|
|
bool aHasOverrideLang, const char16_t* aValue) {
|
|
MOZ_ASSERT(!(aOverrideLang && !aHasOverrideLang),
|
|
"aHasOverrideLang should only be set when aOverrideLang is null");
|
|
MOZ_ASSERT(aValue, "null lang parameter");
|
|
if (!aValue || !*aValue) {
|
|
return false;
|
|
}
|
|
|
|
// We have to determine the language of the current element. Since
|
|
// this is currently no property and since the language is inherited
|
|
// from the parent we have to be prepared to look at all parent
|
|
// nodes. The language itself is encoded in the LANG attribute.
|
|
if (auto* language = aHasOverrideLang ? aOverrideLang : aElement->GetLang()) {
|
|
return nsStyleUtil::LangTagCompare(nsAtomCString(language),
|
|
NS_ConvertUTF16toUTF8(aValue));
|
|
}
|
|
|
|
// Try to get the language from the HTTP header or if this
|
|
// is missing as well from the preferences.
|
|
// The content language can be a comma-separated list of
|
|
// language codes.
|
|
// FIXME: We're not really consistent in our treatment of comma-separated
|
|
// content-language values.
|
|
if (nsAtom* language = aElement->OwnerDoc()->GetContentLanguage()) {
|
|
const NS_ConvertUTF16toUTF8 langString(aValue);
|
|
nsAtomCString docLang(language);
|
|
docLang.StripWhitespace();
|
|
for (auto const& lang : docLang.Split(',')) {
|
|
if (nsStyleUtil::LangTagCompare(lang, langString)) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
nsAtom* Gecko_GetXMLLangValue(const Element* aElement) {
|
|
const nsAttrValue* attr =
|
|
aElement->GetParsedAttr(nsGkAtoms::lang, kNameSpaceID_XML);
|
|
|
|
if (!attr) {
|
|
return nullptr;
|
|
}
|
|
|
|
MOZ_ASSERT(attr->Type() == nsAttrValue::eAtom);
|
|
|
|
RefPtr<nsAtom> atom = attr->GetAtomValue();
|
|
return atom.forget().take();
|
|
}
|
|
|
|
const PreferenceSheet::Prefs* Gecko_GetPrefSheetPrefs(const Document* aDoc) {
|
|
return &PreferenceSheet::PrefsFor(*aDoc);
|
|
}
|
|
|
|
bool Gecko_IsTableBorderNonzero(const Element* aElement) {
|
|
if (!aElement->IsHTMLElement(nsGkAtoms::table)) {
|
|
return false;
|
|
}
|
|
const nsAttrValue* val = aElement->GetParsedAttr(nsGkAtoms::border);
|
|
return val &&
|
|
(val->Type() != nsAttrValue::eInteger || val->GetIntegerValue() != 0);
|
|
}
|
|
|
|
bool Gecko_IsSelectListBox(const Element* aElement) {
|
|
const auto* select = HTMLSelectElement::FromNode(aElement);
|
|
return select && !select->IsCombobox();
|
|
}
|
|
|
|
template <typename Implementor>
|
|
static nsAtom* LangValue(Implementor* aElement) {
|
|
// TODO(emilio): Deduplicate a bit with nsIContent::GetLang().
|
|
const nsAttrValue* attr =
|
|
aElement->GetParsedAttr(nsGkAtoms::lang, kNameSpaceID_XML);
|
|
if (!attr && aElement->SupportsLangAttr()) {
|
|
attr = aElement->GetParsedAttr(nsGkAtoms::lang);
|
|
}
|
|
|
|
if (!attr) {
|
|
return nullptr;
|
|
}
|
|
|
|
MOZ_ASSERT(attr->Type() == nsAttrValue::eAtom);
|
|
RefPtr<nsAtom> atom = attr->GetAtomValue();
|
|
return atom.forget().take();
|
|
}
|
|
|
|
bool Gecko_AttrEquals(const nsAttrValue* aValue, const nsAtom* aStr,
|
|
bool aIgnoreCase) {
|
|
return aValue->Equals(aStr, aIgnoreCase ? eIgnoreCase : eCaseMatters);
|
|
}
|
|
|
|
#define WITH_COMPARATOR(ignore_case_, c_, expr_) \
|
|
auto c_ = (ignore_case_) ? nsASCIICaseInsensitiveStringComparator \
|
|
: nsTDefaultStringComparator<char16_t>; \
|
|
return expr_;
|
|
|
|
bool Gecko_AttrDashEquals(const nsAttrValue* aValue, const nsAtom* aStr,
|
|
bool aIgnoreCase) {
|
|
nsAutoString str;
|
|
aValue->ToString(str);
|
|
WITH_COMPARATOR(
|
|
aIgnoreCase, c,
|
|
nsStyleUtil::DashMatchCompare(str, nsDependentAtomString(aStr), c))
|
|
}
|
|
|
|
bool Gecko_AttrIncludes(const nsAttrValue* aValue, const nsAtom* aStr,
|
|
bool aIgnoreCase) {
|
|
if (aStr == nsGkAtoms::_empty) {
|
|
return false;
|
|
}
|
|
nsAutoString str;
|
|
aValue->ToString(str);
|
|
WITH_COMPARATOR(
|
|
aIgnoreCase, c,
|
|
nsStyleUtil::ValueIncludes(str, nsDependentAtomString(aStr), c))
|
|
}
|
|
|
|
bool Gecko_AttrHasSubstring(const nsAttrValue* aValue, const nsAtom* aStr,
|
|
bool aIgnoreCase) {
|
|
return aStr != nsGkAtoms::_empty &&
|
|
aValue->HasSubstring(nsDependentAtomString(aStr),
|
|
aIgnoreCase ? eIgnoreCase : eCaseMatters);
|
|
}
|
|
|
|
bool Gecko_AttrHasPrefix(const nsAttrValue* aValue, const nsAtom* aStr,
|
|
bool aIgnoreCase) {
|
|
return aStr != nsGkAtoms::_empty &&
|
|
aValue->HasPrefix(nsDependentAtomString(aStr),
|
|
aIgnoreCase ? eIgnoreCase : eCaseMatters);
|
|
}
|
|
|
|
bool Gecko_AttrHasSuffix(const nsAttrValue* aValue, const nsAtom* aStr,
|
|
bool aIgnoreCase) {
|
|
return aStr != nsGkAtoms::_empty &&
|
|
aValue->HasSuffix(nsDependentAtomString(aStr),
|
|
aIgnoreCase ? eIgnoreCase : eCaseMatters);
|
|
}
|
|
|
|
#define SERVO_IMPL_ELEMENT_ATTR_MATCHING_FUNCTIONS(prefix_, implementor_) \
|
|
nsAtom* prefix_##LangValue(implementor_ aElement) { \
|
|
return LangValue(aElement); \
|
|
}
|
|
|
|
SERVO_IMPL_ELEMENT_ATTR_MATCHING_FUNCTIONS(Gecko_, const Element*)
|
|
SERVO_IMPL_ELEMENT_ATTR_MATCHING_FUNCTIONS(Gecko_Snapshot,
|
|
const ServoElementSnapshot*)
|
|
|
|
#undef SERVO_IMPL_ELEMENT_ATTR_MATCHING_FUNCTIONS
|
|
|
|
nsAtom* Gecko_Atomize(const char* aString, uint32_t aLength) {
|
|
return NS_Atomize(nsDependentCSubstring(aString, aLength)).take();
|
|
}
|
|
|
|
nsAtom* Gecko_Atomize16(const nsAString* aString) {
|
|
return NS_Atomize(*aString).take();
|
|
}
|
|
|
|
void Gecko_AddRefAtom(nsAtom* aAtom) { NS_ADDREF(aAtom); }
|
|
|
|
void Gecko_ReleaseAtom(nsAtom* aAtom) { NS_RELEASE(aAtom); }
|
|
|
|
void Gecko_nsFont_InitSystem(nsFont* aDest, StyleSystemFont aFontId,
|
|
const nsStyleFont* aFont,
|
|
const Document* aDocument) {
|
|
const nsFont& defaultVariableFont =
|
|
ThreadSafeGetDefaultVariableFont(*aDocument, aFont->mLanguage);
|
|
|
|
// We have passed uninitialized memory to this function,
|
|
// initialize it. We can't simply return an nsFont because then
|
|
// we need to know its size beforehand. Servo cannot initialize nsFont
|
|
// itself, so this will do.
|
|
new (aDest) nsFont(defaultVariableFont);
|
|
|
|
AutoWriteLock guard(*sServoFFILock);
|
|
nsLayoutUtils::ComputeSystemFont(aDest, aFontId, defaultVariableFont,
|
|
aDocument);
|
|
}
|
|
|
|
void Gecko_nsFont_Destroy(nsFont* aDest) { aDest->~nsFont(); }
|
|
|
|
StyleGenericFontFamily Gecko_nsStyleFont_ComputeFallbackFontTypeForLanguage(
|
|
const Document* aDoc, nsAtom* aLanguage) {
|
|
return ThreadSafeGetLangGroupFontPrefs(*aDoc, aLanguage)->GetDefaultGeneric();
|
|
}
|
|
|
|
Length Gecko_GetBaseSize(const Document* aDoc, nsAtom* aLang,
|
|
StyleGenericFontFamily aGeneric) {
|
|
return ThreadSafeGetLangGroupFontPrefs(*aDoc, aLang)
|
|
->GetDefaultFont(aGeneric)
|
|
->size;
|
|
}
|
|
|
|
gfxFontFeatureValueSet* Gecko_ConstructFontFeatureValueSet() {
|
|
return new gfxFontFeatureValueSet();
|
|
}
|
|
|
|
nsTArray<uint32_t>* Gecko_AppendFeatureValueHashEntry(
|
|
gfxFontFeatureValueSet* aFontFeatureValues, nsAtom* aFamily,
|
|
uint32_t aAlternate, nsAtom* aName) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
return aFontFeatureValues->AppendFeatureValueHashEntry(nsAtomCString(aFamily),
|
|
aName, aAlternate);
|
|
}
|
|
|
|
gfx::FontPaletteValueSet* Gecko_ConstructFontPaletteValueSet() {
|
|
return new gfx::FontPaletteValueSet();
|
|
}
|
|
|
|
gfx::FontPaletteValueSet::PaletteValues* Gecko_AppendPaletteValueHashEntry(
|
|
gfx::FontPaletteValueSet* aPaletteValueSet, nsAtom* aFamily,
|
|
nsAtom* aName) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
return aPaletteValueSet->Insert(aName, nsAtomCString(aFamily));
|
|
}
|
|
|
|
void Gecko_SetFontPaletteBase(gfx::FontPaletteValueSet::PaletteValues* aValues,
|
|
int32_t aBasePaletteIndex) {
|
|
aValues->mBasePalette = aBasePaletteIndex;
|
|
}
|
|
|
|
void Gecko_SetFontPaletteOverride(
|
|
gfx::FontPaletteValueSet::PaletteValues* aValues, int32_t aIndex,
|
|
StyleAbsoluteColor* aColor) {
|
|
if (aIndex < 0) {
|
|
return;
|
|
}
|
|
aValues->mOverrides.AppendElement(gfx::FontPaletteValueSet::OverrideColor{
|
|
uint32_t(aIndex), gfx::sRGBColor::FromABGR(aColor->ToColor())});
|
|
}
|
|
|
|
void Gecko_CounterStyle_ToPtr(const StyleCounterStyle* aStyle,
|
|
CounterStylePtr* aPtr) {
|
|
*aPtr = CounterStylePtr::FromStyle(*aStyle);
|
|
}
|
|
|
|
void Gecko_SetCounterStyleToNone(CounterStylePtr* aPtr) {
|
|
*aPtr = nsGkAtoms::none;
|
|
}
|
|
|
|
void Gecko_SetCounterStyleToString(CounterStylePtr* aPtr,
|
|
const nsACString* aSymbol) {
|
|
*aPtr = new AnonymousCounterStyle(NS_ConvertUTF8toUTF16(*aSymbol));
|
|
}
|
|
|
|
void Gecko_CopyCounterStyle(CounterStylePtr* aDst,
|
|
const CounterStylePtr* aSrc) {
|
|
*aDst = *aSrc;
|
|
}
|
|
|
|
nsAtom* Gecko_CounterStyle_GetName(const CounterStylePtr* aPtr) {
|
|
return aPtr->IsAtom() ? aPtr->AsAtom() : nullptr;
|
|
}
|
|
|
|
const AnonymousCounterStyle* Gecko_CounterStyle_GetAnonymous(
|
|
const CounterStylePtr* aPtr) {
|
|
return aPtr->AsAnonymous();
|
|
}
|
|
|
|
void Gecko_EnsureTArrayCapacity(void* aArray, size_t aCapacity,
|
|
size_t aElemSize) {
|
|
auto base =
|
|
reinterpret_cast<nsTArray_base<nsTArrayInfallibleAllocator,
|
|
nsTArray_RelocateUsingMemutils>*>(aArray);
|
|
|
|
base->EnsureCapacity<nsTArrayInfallibleAllocator>(aCapacity, aElemSize);
|
|
}
|
|
|
|
void Gecko_ClearPODTArray(void* aArray, size_t aElementSize,
|
|
size_t aElementAlign) {
|
|
auto base =
|
|
reinterpret_cast<nsTArray_base<nsTArrayInfallibleAllocator,
|
|
nsTArray_RelocateUsingMemutils>*>(aArray);
|
|
|
|
base->template ShiftData<nsTArrayInfallibleAllocator>(
|
|
0, base->Length(), 0, aElementSize, aElementAlign);
|
|
}
|
|
|
|
void Gecko_ResizeTArrayForStrings(nsTArray<nsString>* aArray,
|
|
uint32_t aLength) {
|
|
aArray->SetLength(aLength);
|
|
}
|
|
|
|
void Gecko_ResizeAtomArray(nsTArray<RefPtr<nsAtom>>* aArray, uint32_t aLength) {
|
|
aArray->SetLength(aLength);
|
|
}
|
|
|
|
void Gecko_EnsureImageLayersLength(nsStyleImageLayers* aLayers, size_t aLen,
|
|
nsStyleImageLayers::LayerType aLayerType) {
|
|
size_t oldLength = aLayers->mLayers.Length();
|
|
|
|
aLayers->mLayers.EnsureLengthAtLeast(aLen);
|
|
|
|
for (size_t i = oldLength; i < aLen; ++i) {
|
|
aLayers->mLayers[i].Initialize(aLayerType);
|
|
}
|
|
}
|
|
|
|
template <typename StyleType>
|
|
static void EnsureStyleAutoArrayLength(StyleType* aArray, size_t aLen) {
|
|
aArray->EnsureLengthAtLeast(aLen);
|
|
}
|
|
|
|
void Gecko_EnsureStyleAnimationArrayLength(void* aArray, size_t aLen) {
|
|
auto* base = static_cast<nsStyleAutoArray<StyleAnimation>*>(aArray);
|
|
EnsureStyleAutoArrayLength(base, aLen);
|
|
}
|
|
|
|
void Gecko_EnsureStyleTransitionArrayLength(void* aArray, size_t aLen) {
|
|
auto* base = reinterpret_cast<nsStyleAutoArray<StyleTransition>*>(aArray);
|
|
EnsureStyleAutoArrayLength(base, aLen);
|
|
}
|
|
|
|
void Gecko_EnsureStyleScrollTimelineArrayLength(void* aArray, size_t aLen) {
|
|
auto* base = static_cast<nsStyleAutoArray<StyleScrollTimeline>*>(aArray);
|
|
EnsureStyleAutoArrayLength(base, aLen);
|
|
}
|
|
|
|
void Gecko_EnsureStyleViewTimelineArrayLength(void* aArray, size_t aLen) {
|
|
auto* base = static_cast<nsStyleAutoArray<StyleViewTimeline>*>(aArray);
|
|
EnsureStyleAutoArrayLength(base, aLen);
|
|
}
|
|
|
|
enum class KeyframeSearchDirection {
|
|
Forwards,
|
|
Backwards,
|
|
};
|
|
|
|
enum class KeyframeInsertPosition {
|
|
Prepend,
|
|
LastForOffset,
|
|
};
|
|
|
|
static Keyframe* GetOrCreateKeyframe(
|
|
nsTArray<Keyframe>* aKeyframes, float aOffset,
|
|
const StyleComputedTimingFunction* aTimingFunction,
|
|
const CompositeOperationOrAuto aComposition,
|
|
KeyframeSearchDirection aSearchDirection,
|
|
KeyframeInsertPosition aInsertPosition) {
|
|
MOZ_ASSERT(aKeyframes, "The keyframe array should be valid");
|
|
MOZ_ASSERT(aTimingFunction, "The timing function should be valid");
|
|
MOZ_ASSERT(aOffset >= 0. && aOffset <= 1.,
|
|
"The offset should be in the range of [0.0, 1.0]");
|
|
|
|
size_t keyframeIndex;
|
|
switch (aSearchDirection) {
|
|
case KeyframeSearchDirection::Forwards:
|
|
if (nsAnimationManager::FindMatchingKeyframe(
|
|
*aKeyframes, aOffset, *aTimingFunction, aComposition,
|
|
keyframeIndex)) {
|
|
return &(*aKeyframes)[keyframeIndex];
|
|
}
|
|
break;
|
|
case KeyframeSearchDirection::Backwards:
|
|
if (nsAnimationManager::FindMatchingKeyframe(
|
|
Reversed(*aKeyframes), aOffset, *aTimingFunction, aComposition,
|
|
keyframeIndex)) {
|
|
return &(*aKeyframes)[aKeyframes->Length() - 1 - keyframeIndex];
|
|
}
|
|
keyframeIndex = aKeyframes->Length() - 1;
|
|
break;
|
|
}
|
|
|
|
Keyframe* keyframe = aKeyframes->InsertElementAt(
|
|
aInsertPosition == KeyframeInsertPosition::Prepend ? 0 : keyframeIndex);
|
|
keyframe->mOffset.emplace(aOffset);
|
|
if (!aTimingFunction->IsLinearKeyword()) {
|
|
keyframe->mTimingFunction.emplace(*aTimingFunction);
|
|
}
|
|
keyframe->mComposite = aComposition;
|
|
|
|
return keyframe;
|
|
}
|
|
|
|
Keyframe* Gecko_GetOrCreateKeyframeAtStart(
|
|
nsTArray<Keyframe>* aKeyframes, float aOffset,
|
|
const StyleComputedTimingFunction* aTimingFunction,
|
|
const CompositeOperationOrAuto aComposition) {
|
|
MOZ_ASSERT(aKeyframes->IsEmpty() ||
|
|
aKeyframes->ElementAt(0).mOffset.value() >= aOffset,
|
|
"The offset should be less than or equal to the first keyframe's "
|
|
"offset if there are exisiting keyframes");
|
|
|
|
return GetOrCreateKeyframe(aKeyframes, aOffset, aTimingFunction, aComposition,
|
|
KeyframeSearchDirection::Forwards,
|
|
KeyframeInsertPosition::Prepend);
|
|
}
|
|
|
|
Keyframe* Gecko_GetOrCreateInitialKeyframe(
|
|
nsTArray<Keyframe>* aKeyframes,
|
|
const StyleComputedTimingFunction* aTimingFunction,
|
|
const CompositeOperationOrAuto aComposition) {
|
|
return GetOrCreateKeyframe(aKeyframes, 0., aTimingFunction, aComposition,
|
|
KeyframeSearchDirection::Forwards,
|
|
KeyframeInsertPosition::LastForOffset);
|
|
}
|
|
|
|
Keyframe* Gecko_GetOrCreateFinalKeyframe(
|
|
nsTArray<Keyframe>* aKeyframes,
|
|
const StyleComputedTimingFunction* aTimingFunction,
|
|
const CompositeOperationOrAuto aComposition) {
|
|
return GetOrCreateKeyframe(aKeyframes, 1., aTimingFunction, aComposition,
|
|
KeyframeSearchDirection::Backwards,
|
|
KeyframeInsertPosition::LastForOffset);
|
|
}
|
|
|
|
PropertyValuePair* Gecko_AppendPropertyValuePair(
|
|
nsTArray<PropertyValuePair>* aProperties,
|
|
const mozilla::AnimatedPropertyID* aProperty) {
|
|
MOZ_ASSERT(aProperties);
|
|
MOZ_ASSERT(
|
|
aProperty->IsCustom() ||
|
|
!nsCSSProps::PropHasFlags(aProperty->mID, CSSPropFlags::IsLogical));
|
|
return aProperties->AppendElement(PropertyValuePair{*aProperty});
|
|
}
|
|
|
|
void Gecko_GetComputedURLSpec(const StyleComputedUrl* aURL, nsCString* aOut) {
|
|
MOZ_ASSERT(aURL);
|
|
MOZ_ASSERT(aOut);
|
|
if (aURL->IsLocalRef()) {
|
|
aOut->Assign(aURL->SpecifiedSerialization());
|
|
return;
|
|
}
|
|
Gecko_GetComputedImageURLSpec(aURL, aOut);
|
|
}
|
|
|
|
void Gecko_GetComputedImageURLSpec(const StyleComputedUrl* aURL,
|
|
nsCString* aOut) {
|
|
if (aURL->IsLocalRef() &&
|
|
StaticPrefs::layout_css_computed_style_dont_resolve_image_local_refs()) {
|
|
aOut->Assign(aURL->SpecifiedSerialization());
|
|
return;
|
|
}
|
|
|
|
if (nsIURI* uri = aURL->GetURI()) {
|
|
nsresult rv = uri->GetSpec(*aOut);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Empty URL computes to empty, per spec:
|
|
if (aURL->SpecifiedSerialization().IsEmpty()) {
|
|
aOut->Truncate();
|
|
} else {
|
|
aOut->AssignLiteral("about:invalid");
|
|
}
|
|
}
|
|
|
|
bool Gecko_IsSupportedImageMimeType(const uint8_t* aMimeType,
|
|
const uint32_t aLen) {
|
|
nsDependentCSubstring mime(reinterpret_cast<const char*>(aMimeType), aLen);
|
|
return imgLoader::SupportImageWithMimeType(
|
|
mime, AcceptedMimeTypes::IMAGES_AND_DOCUMENTS);
|
|
}
|
|
|
|
void Gecko_nsIURI_Debug(nsIURI* aURI, nsCString* aOut) {
|
|
// TODO(emilio): Do we have more useful stuff to put here, maybe?
|
|
if (aURI) {
|
|
*aOut = aURI->GetSpecOrDefault();
|
|
}
|
|
}
|
|
|
|
// XXX Implemented by hand because even though it's thread-safe, only the
|
|
// subclasses have the HasThreadSafeRefCnt bits.
|
|
void Gecko_AddRefnsIURIArbitraryThread(nsIURI* aPtr) { NS_ADDREF(aPtr); }
|
|
void Gecko_ReleasensIURIArbitraryThread(nsIURI* aPtr) { NS_RELEASE(aPtr); }
|
|
|
|
void Gecko_nsIReferrerInfo_Debug(nsIReferrerInfo* aReferrerInfo,
|
|
nsCString* aOut) {
|
|
if (aReferrerInfo) {
|
|
if (nsCOMPtr<nsIURI> referrer = aReferrerInfo->GetComputedReferrer()) {
|
|
*aOut = referrer->GetSpecOrDefault();
|
|
}
|
|
}
|
|
}
|
|
|
|
template <typename ElementLike>
|
|
void DebugListAttributes(const ElementLike& aElement, nsCString& aOut) {
|
|
const uint32_t kMaxAttributeLength = 40;
|
|
|
|
uint32_t i = 0;
|
|
while (BorrowedAttrInfo info = aElement.GetAttrInfoAt(i++)) {
|
|
aOut.AppendLiteral(" ");
|
|
if (nsAtom* prefix = info.mName->GetPrefix()) {
|
|
aOut.Append(NS_ConvertUTF16toUTF8(nsDependentAtomString(prefix)));
|
|
aOut.AppendLiteral(":");
|
|
}
|
|
aOut.Append(
|
|
NS_ConvertUTF16toUTF8(nsDependentAtomString(info.mName->LocalName())));
|
|
if (!info.mValue) {
|
|
continue;
|
|
}
|
|
aOut.AppendLiteral("=\"");
|
|
nsAutoString value;
|
|
info.mValue->ToString(value);
|
|
if (value.Length() > kMaxAttributeLength) {
|
|
value.Truncate(kMaxAttributeLength - 3);
|
|
value.AppendLiteral("...");
|
|
}
|
|
aOut.Append(NS_ConvertUTF16toUTF8(value));
|
|
aOut.AppendLiteral("\"");
|
|
}
|
|
}
|
|
|
|
void Gecko_Element_DebugListAttributes(const Element* aElement,
|
|
nsCString* aOut) {
|
|
DebugListAttributes(*aElement, *aOut);
|
|
}
|
|
|
|
void Gecko_Snapshot_DebugListAttributes(const ServoElementSnapshot* aSnapshot,
|
|
nsCString* aOut) {
|
|
DebugListAttributes(*aSnapshot, *aOut);
|
|
}
|
|
|
|
NS_IMPL_THREADSAFE_FFI_REFCOUNTING(URLExtraData, URLExtraData);
|
|
|
|
void Gecko_nsStyleFont_SetLang(nsStyleFont* aFont, nsAtom* aAtom) {
|
|
aFont->mLanguage = dont_AddRef(aAtom);
|
|
aFont->mExplicitLanguage = true;
|
|
}
|
|
|
|
void Gecko_nsStyleFont_CopyLangFrom(nsStyleFont* aFont,
|
|
const nsStyleFont* aSource) {
|
|
aFont->mLanguage = aSource->mLanguage;
|
|
}
|
|
|
|
Length Gecko_nsStyleFont_ComputeMinSize(const nsStyleFont* aFont,
|
|
const Document* aDocument) {
|
|
// Don't change font-size:0, since that would un-hide hidden text.
|
|
if (aFont->mSize.IsZero()) {
|
|
return {0};
|
|
}
|
|
// Don't change it for docs where we don't enable the min-font-size.
|
|
if (!aFont->MinFontSizeEnabled()) {
|
|
return {0};
|
|
}
|
|
Length minFontSize;
|
|
bool needsCache = false;
|
|
|
|
auto MinFontSize = [&](bool* aNeedsToCache) {
|
|
const auto* prefs =
|
|
aDocument->GetFontPrefsForLang(aFont->mLanguage, aNeedsToCache);
|
|
return prefs ? prefs->mMinimumFontSize : Length{0};
|
|
};
|
|
|
|
{
|
|
AutoReadLock guard(*sServoFFILock);
|
|
minFontSize = MinFontSize(&needsCache);
|
|
}
|
|
|
|
if (needsCache) {
|
|
AutoWriteLock guard(*sServoFFILock);
|
|
minFontSize = MinFontSize(nullptr);
|
|
}
|
|
|
|
if (minFontSize.ToCSSPixels() <= 0.0f) {
|
|
return {0};
|
|
}
|
|
|
|
minFontSize.ScaleBy(aFont->mMinFontSizeRatio);
|
|
minFontSize.ScaleBy(1.0f / 100.0f);
|
|
return minFontSize;
|
|
}
|
|
|
|
static StaticRefPtr<UACacheReporter> gUACacheReporter;
|
|
|
|
namespace mozilla {
|
|
|
|
void InitializeServo() {
|
|
URLExtraData::Init();
|
|
Servo_Initialize(URLExtraData::Dummy(), URLExtraData::DummyChrome());
|
|
|
|
gUACacheReporter = new UACacheReporter();
|
|
RegisterWeakMemoryReporter(gUACacheReporter);
|
|
|
|
sServoFFILock = new RWLock("Servo::FFILock");
|
|
}
|
|
|
|
void ShutdownServo() {
|
|
MOZ_ASSERT(sServoFFILock);
|
|
|
|
UnregisterWeakMemoryReporter(gUACacheReporter);
|
|
gUACacheReporter = nullptr;
|
|
|
|
sServoFFILock = nullptr;
|
|
Servo_Shutdown();
|
|
|
|
URLExtraData::Shutdown();
|
|
}
|
|
|
|
void AssertIsMainThreadOrServoFontMetricsLocked() {
|
|
if (!NS_IsMainThread()) {
|
|
MOZ_ASSERT(sServoFFILock &&
|
|
sServoFFILock->LockedForWritingByCurrentThread());
|
|
}
|
|
}
|
|
|
|
} // namespace mozilla
|
|
|
|
GeckoFontMetrics Gecko_GetFontMetrics(const nsPresContext* aPresContext,
|
|
bool aIsVertical,
|
|
const nsStyleFont* aFont,
|
|
Length aFontSize, bool aUseUserFontSet,
|
|
bool aRetrieveMathScales) {
|
|
AutoWriteLock guard(*sServoFFILock);
|
|
|
|
// Getting font metrics can require some main thread only work to be
|
|
// done, such as work that needs to touch non-threadsafe refcounted
|
|
// objects (like the DOM FontFace/FontFaceSet objects), network loads, etc.
|
|
//
|
|
// To handle this work, font code checks whether we are in a Servo traversal
|
|
// and if so, appends PostTraversalTasks to the current ServoStyleSet
|
|
// to be performed immediately after the traversal is finished. This
|
|
// works well for starting downloadable font loads, since we don't have
|
|
// those fonts available to get metrics for anyway. Platform fonts and
|
|
// ArrayBuffer-backed FontFace objects are handled synchronously.
|
|
|
|
nsPresContext* presContext = const_cast<nsPresContext*>(aPresContext);
|
|
RefPtr<nsFontMetrics> fm = nsLayoutUtils::GetMetricsFor(
|
|
presContext, aIsVertical, aFont, aFontSize, aUseUserFontSet);
|
|
auto* fontGroup = fm->GetThebesFontGroup();
|
|
auto metrics = fontGroup->GetMetricsForCSSUnits(fm->Orientation());
|
|
|
|
float scriptPercentScaleDown = 0;
|
|
float scriptScriptPercentScaleDown = 0;
|
|
if (aRetrieveMathScales) {
|
|
RefPtr<gfxFont> font = fontGroup->GetFirstValidFont();
|
|
if (font->TryGetMathTable()) {
|
|
scriptPercentScaleDown = static_cast<float>(
|
|
font->MathTable()->Constant(gfxMathTable::ScriptPercentScaleDown));
|
|
scriptScriptPercentScaleDown =
|
|
static_cast<float>(font->MathTable()->Constant(
|
|
gfxMathTable::ScriptScriptPercentScaleDown));
|
|
}
|
|
}
|
|
|
|
int32_t d2a = aPresContext->AppUnitsPerDevPixel();
|
|
auto ToLength = [](nscoord aLen) {
|
|
return Length::FromPixels(CSSPixel::FromAppUnits(aLen));
|
|
};
|
|
return {ToLength(NS_round(metrics.xHeight * d2a)),
|
|
ToLength(NS_round(metrics.zeroWidth * d2a)),
|
|
ToLength(NS_round(metrics.capHeight * d2a)),
|
|
ToLength(NS_round(metrics.ideographicWidth * d2a)),
|
|
ToLength(NS_round(metrics.maxAscent * d2a)),
|
|
ToLength(NS_round(fontGroup->GetStyle()->size * d2a)),
|
|
scriptPercentScaleDown,
|
|
scriptScriptPercentScaleDown};
|
|
}
|
|
|
|
NS_IMPL_THREADSAFE_FFI_REFCOUNTING(SheetLoadDataHolder, SheetLoadDataHolder);
|
|
|
|
void Gecko_StyleSheet_FinishAsyncParse(
|
|
SheetLoadDataHolder* aData,
|
|
StyleStrong<StyleStylesheetContents> aSheetContents,
|
|
StyleUseCounters* aUseCounters) {
|
|
UniquePtr<StyleUseCounters> useCounters(aUseCounters);
|
|
RefPtr<SheetLoadDataHolder> loadData = aData;
|
|
RefPtr<StyleStylesheetContents> sheetContents = aSheetContents.Consume();
|
|
NS_DispatchToMainThreadQueue(
|
|
NS_NewRunnableFunction(
|
|
__func__,
|
|
[d = std::move(loadData), contents = std::move(sheetContents),
|
|
counters = std::move(useCounters)]() mutable {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
SheetLoadData* data = d->get();
|
|
data->mSheet->FinishAsyncParse(contents.forget(),
|
|
std::move(counters));
|
|
}),
|
|
EventQueuePriority::RenderBlocking);
|
|
}
|
|
|
|
static already_AddRefed<StyleSheet> LoadImportSheet(
|
|
Loader* aLoader, StyleSheet* aParent, SheetLoadData* aParentLoadData,
|
|
LoaderReusableStyleSheets* aReusableSheets, const StyleCssUrl& aURL,
|
|
already_AddRefed<StyleLockedMediaList> aMediaList) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(aLoader, "Should've catched this before");
|
|
MOZ_ASSERT(aParent, "Only used for @import, so parent should exist!");
|
|
|
|
RefPtr<MediaList> media = new MediaList(std::move(aMediaList));
|
|
nsCOMPtr<nsIURI> uri = aURL.GetURI();
|
|
nsresult rv = uri ? NS_OK : NS_ERROR_FAILURE;
|
|
|
|
size_t previousSheetCount = aParent->ChildSheets().Length();
|
|
if (NS_SUCCEEDED(rv)) {
|
|
// TODO(emilio): We should probably make LoadChildSheet return the
|
|
// stylesheet rather than the return code.
|
|
rv = aLoader->LoadChildSheet(*aParent, aParentLoadData, uri, media,
|
|
aReusableSheets);
|
|
}
|
|
|
|
if (NS_FAILED(rv) || previousSheetCount == aParent->ChildSheets().Length()) {
|
|
// Servo and Gecko have different ideas of what a valid URL is, so we might
|
|
// get in here with a URL string that NS_NewURI can't handle. We may also
|
|
// reach here via an import cycle. For the import cycle case, we need some
|
|
// sheet object per spec, even if its empty. DevTools uses the URI to
|
|
// realize it has hit an import cycle, so we mark it complete to make the
|
|
// sheet readable from JS.
|
|
RefPtr<StyleSheet> emptySheet =
|
|
aParent->CreateEmptyChildSheet(media.forget());
|
|
// Make a dummy URI if we don't have one because some methods assume
|
|
// non-null URIs.
|
|
if (!uri) {
|
|
NS_NewURI(getter_AddRefs(uri), "about:invalid"_ns);
|
|
}
|
|
emptySheet->SetURIs(uri, uri, uri);
|
|
emptySheet->SetPrincipal(aURL.ExtraData().Principal());
|
|
nsCOMPtr<nsIReferrerInfo> referrerInfo =
|
|
ReferrerInfo::CreateForExternalCSSResources(emptySheet);
|
|
emptySheet->SetReferrerInfo(referrerInfo);
|
|
emptySheet->SetComplete();
|
|
aParent->AppendStyleSheet(*emptySheet);
|
|
return emptySheet.forget();
|
|
}
|
|
|
|
RefPtr<StyleSheet> sheet = aParent->ChildSheets().LastElement();
|
|
return sheet.forget();
|
|
}
|
|
|
|
StyleSheet* Gecko_LoadStyleSheet(Loader* aLoader, StyleSheet* aParent,
|
|
SheetLoadData* aParentLoadData,
|
|
LoaderReusableStyleSheets* aReusableSheets,
|
|
const StyleCssUrl* aUrl,
|
|
StyleStrong<StyleLockedMediaList> aMediaList) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(aUrl);
|
|
|
|
return LoadImportSheet(aLoader, aParent, aParentLoadData, aReusableSheets,
|
|
*aUrl, aMediaList.Consume())
|
|
.take();
|
|
}
|
|
|
|
void Gecko_LoadStyleSheetAsync(SheetLoadDataHolder* aParentData,
|
|
const StyleCssUrl* aUrl,
|
|
StyleStrong<StyleLockedMediaList> aMediaList,
|
|
StyleStrong<StyleLockedImportRule> aImportRule) {
|
|
MOZ_ASSERT(aUrl);
|
|
RefPtr<SheetLoadDataHolder> loadData = aParentData;
|
|
RefPtr<StyleLockedMediaList> mediaList = aMediaList.Consume();
|
|
RefPtr<StyleLockedImportRule> importRule = aImportRule.Consume();
|
|
NS_DispatchToMainThreadQueue(
|
|
NS_NewRunnableFunction(
|
|
__func__,
|
|
[data = std::move(loadData), url = StyleCssUrl(*aUrl),
|
|
media = std::move(mediaList),
|
|
import = std::move(importRule)]() mutable {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
SheetLoadData* d = data->get();
|
|
RefPtr<StyleSheet> sheet = LoadImportSheet(
|
|
d->mLoader, d->mSheet, d, nullptr, url, media.forget());
|
|
Servo_ImportRule_SetSheet(import, sheet);
|
|
}),
|
|
EventQueuePriority::RenderBlocking);
|
|
}
|
|
|
|
void Gecko_AddPropertyToSet(nsCSSPropertyIDSet* aPropertySet,
|
|
nsCSSPropertyID aProperty) {
|
|
aPropertySet->AddProperty(aProperty);
|
|
}
|
|
|
|
bool Gecko_DocumentRule_UseForPresentation(
|
|
const Document* aDocument, const nsACString* aPattern,
|
|
DocumentMatchingFunction aMatchingFunction) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
nsIURI* docURI = aDocument->GetDocumentURI();
|
|
nsAutoCString docURISpec;
|
|
if (docURI) {
|
|
// If GetSpec fails (due to OOM) just skip these URI-specific CSS rules.
|
|
nsresult rv = docURI->GetSpec(docURISpec);
|
|
NS_ENSURE_SUCCESS(rv, false);
|
|
}
|
|
|
|
return CSSMozDocumentRule::Match(aDocument, docURI, docURISpec, *aPattern,
|
|
aMatchingFunction);
|
|
}
|
|
|
|
void Gecko_SetJemallocThreadLocalArena(bool enabled) {
|
|
#if defined(MOZ_MEMORY)
|
|
jemalloc_thread_local_arena(enabled);
|
|
#endif
|
|
}
|
|
|
|
template <typename T>
|
|
void Construct(T* aPtr, const Document* aDoc) {
|
|
if constexpr (std::is_constructible_v<T, const Document&>) {
|
|
MOZ_ASSERT(aDoc);
|
|
new (KnownNotNull, aPtr) T(*aDoc);
|
|
} else {
|
|
MOZ_ASSERT(!aDoc);
|
|
new (KnownNotNull, aPtr) T();
|
|
// These instance are intentionally global, and we don't want leakcheckers
|
|
// to report them.
|
|
aPtr->MarkLeaked();
|
|
}
|
|
}
|
|
|
|
#define STYLE_STRUCT(name) \
|
|
void Gecko_Construct_Default_nsStyle##name(nsStyle##name* ptr, \
|
|
const Document* doc) { \
|
|
Construct(ptr, doc); \
|
|
} \
|
|
void Gecko_CopyConstruct_nsStyle##name(nsStyle##name* ptr, \
|
|
const nsStyle##name* other) { \
|
|
new (ptr) nsStyle##name(*other); \
|
|
} \
|
|
void Gecko_Destroy_nsStyle##name(nsStyle##name* ptr) { \
|
|
ptr->~nsStyle##name(); \
|
|
}
|
|
|
|
#include "nsStyleStructList.h"
|
|
|
|
#undef STYLE_STRUCT
|
|
|
|
bool Gecko_ErrorReportingEnabled(const StyleSheet* aSheet,
|
|
const Loader* aLoader,
|
|
uint64_t* aOutWindowId) {
|
|
if (!ErrorReporter::ShouldReportErrors(aSheet, aLoader)) {
|
|
return false;
|
|
}
|
|
*aOutWindowId = ErrorReporter::FindInnerWindowId(aSheet, aLoader);
|
|
return true;
|
|
}
|
|
|
|
void Gecko_ReportUnexpectedCSSError(
|
|
const uint64_t aWindowId, nsIURI* aURI, const char* message,
|
|
const char* param, uint32_t paramLen, const char* prefix,
|
|
const char* prefixParam, uint32_t prefixParamLen, const char* suffix,
|
|
const char* source, uint32_t sourceLen, const char* selectors,
|
|
uint32_t selectorsLen, uint32_t lineNumber, uint32_t colNumber) {
|
|
MOZ_RELEASE_ASSERT(NS_IsMainThread());
|
|
|
|
ErrorReporter reporter(aWindowId);
|
|
|
|
if (prefix) {
|
|
if (prefixParam) {
|
|
nsDependentCSubstring paramValue(prefixParam, prefixParamLen);
|
|
AutoTArray<nsString, 1> wideParam;
|
|
CopyUTF8toUTF16(paramValue, *wideParam.AppendElement());
|
|
reporter.ReportUnexpectedUnescaped(prefix, wideParam);
|
|
} else {
|
|
reporter.ReportUnexpected(prefix);
|
|
}
|
|
}
|
|
|
|
if (param) {
|
|
nsDependentCSubstring paramValue(param, paramLen);
|
|
AutoTArray<nsString, 1> wideParam;
|
|
CopyUTF8toUTF16(paramValue, *wideParam.AppendElement());
|
|
reporter.ReportUnexpectedUnescaped(message, wideParam);
|
|
} else {
|
|
reporter.ReportUnexpected(message);
|
|
}
|
|
|
|
if (suffix) {
|
|
reporter.ReportUnexpected(suffix);
|
|
}
|
|
nsDependentCSubstring sourceValue(source, sourceLen);
|
|
nsDependentCSubstring selectorsValue(selectors, selectorsLen);
|
|
reporter.OutputError(sourceValue, selectorsValue, lineNumber + 1, colNumber,
|
|
aURI);
|
|
}
|
|
|
|
void Gecko_ContentList_AppendAll(nsSimpleContentList* aList,
|
|
const Element** aElements, size_t aLength) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(aElements);
|
|
MOZ_ASSERT(aLength);
|
|
MOZ_ASSERT(aList);
|
|
|
|
aList->SetCapacity(aLength);
|
|
|
|
for (size_t i = 0; i < aLength; ++i) {
|
|
aList->AppendElement(const_cast<Element*>(aElements[i]));
|
|
}
|
|
}
|
|
|
|
const nsTArray<Element*>* Gecko_Document_GetElementsWithId(const Document* aDoc,
|
|
nsAtom* aId) {
|
|
MOZ_ASSERT(aDoc);
|
|
MOZ_ASSERT(aId);
|
|
return aDoc->GetAllElementsForId(aId);
|
|
}
|
|
|
|
const nsTArray<Element*>* Gecko_ShadowRoot_GetElementsWithId(
|
|
const ShadowRoot* aShadowRoot, nsAtom* aId) {
|
|
MOZ_ASSERT(aShadowRoot);
|
|
MOZ_ASSERT(aId);
|
|
return aShadowRoot->GetAllElementsForId(aId);
|
|
}
|
|
|
|
bool Gecko_ComputeBoolPrefMediaQuery(nsAtom* aPref) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
// This map leaks until shutdown, but that's fine, all the values are
|
|
// controlled by us so it's not expected to be big.
|
|
static StaticAutoPtr<nsTHashMap<RefPtr<nsAtom>, bool>> sRegisteredPrefs;
|
|
if (!sRegisteredPrefs) {
|
|
if (PastShutdownPhase(ShutdownPhase::XPCOMShutdownFinal)) {
|
|
// Styling doesn't really matter much at this point, don't bother.
|
|
return false;
|
|
}
|
|
sRegisteredPrefs = new nsTHashMap<RefPtr<nsAtom>, bool>();
|
|
ClearOnShutdown(&sRegisteredPrefs);
|
|
}
|
|
return sRegisteredPrefs->LookupOrInsertWith(aPref, [&] {
|
|
nsAutoAtomCString prefName(aPref);
|
|
Preferences::RegisterCallback(
|
|
[](const char* aPrefName, void*) {
|
|
if (sRegisteredPrefs) {
|
|
RefPtr<nsAtom> name = NS_Atomize(nsDependentCString(aPrefName));
|
|
sRegisteredPrefs->InsertOrUpdate(name,
|
|
Preferences::GetBool(aPrefName));
|
|
}
|
|
LookAndFeel::NotifyChangedAllWindows(
|
|
widget::ThemeChangeKind::MediaQueriesOnly);
|
|
},
|
|
prefName);
|
|
return Preferences::GetBool(prefName.get());
|
|
});
|
|
}
|
|
|
|
bool Gecko_IsFontFormatSupported(StyleFontFaceSourceFormatKeyword aFormat) {
|
|
return gfxPlatform::GetPlatform()->IsFontFormatSupported(
|
|
aFormat, StyleFontFaceSourceTechFlags::Empty());
|
|
}
|
|
|
|
bool Gecko_IsFontTechSupported(StyleFontFaceSourceTechFlags aFlag) {
|
|
return gfxPlatform::GetPlatform()->IsFontFormatSupported(
|
|
StyleFontFaceSourceFormatKeyword::None, aFlag);
|
|
}
|
|
|
|
bool Gecko_IsKnownIconFontFamily(const nsAtom* aFamilyName) {
|
|
return gfxPlatform::GetPlatform()->IsKnownIconFontFamily(aFamilyName);
|
|
}
|
|
|
|
bool Gecko_IsInServoTraversal() { return ServoStyleSet::IsInServoTraversal(); }
|
|
|
|
bool Gecko_IsMainThread() { return NS_IsMainThread(); }
|
|
|
|
bool Gecko_IsDOMWorkerThread() { return !!GetCurrentThreadWorkerPrivate(); }
|
|
|
|
int32_t Gecko_GetNumStyleThreads() {
|
|
if (const auto& cpuInfo = hal::GetHeterogeneousCpuInfo()) {
|
|
size_t numBigCpus = cpuInfo->mBigCpus.Count();
|
|
// If CPUs are homogeneous we do not need to override stylo's
|
|
// default number of threads.
|
|
if (numBigCpus != cpuInfo->mTotalNumCpus) {
|
|
// From testing on a variety of devices it appears using only
|
|
// the number of big cores gives best performance when there are
|
|
// 2 or more big cores. If there are fewer than 2 big cores then
|
|
// additionally using the medium cores performs better.
|
|
if (numBigCpus >= 2) {
|
|
return static_cast<int32_t>(numBigCpus);
|
|
}
|
|
return static_cast<int32_t>(numBigCpus + cpuInfo->mMediumCpus.Count());
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
const nsAttrValue* Gecko_GetSVGAnimatedClass(const Element* aElement) {
|
|
MOZ_ASSERT(aElement->IsSVGElement());
|
|
return static_cast<const SVGElement*>(aElement)->GetAnimatedClassName();
|
|
}
|
|
|
|
bool Gecko_AssertClassAttrValueIsSane(const nsAttrValue* aValue) {
|
|
MOZ_ASSERT(aValue->Type() == nsAttrValue::eAtom ||
|
|
aValue->Type() == nsAttrValue::eString ||
|
|
aValue->Type() == nsAttrValue::eAtomArray);
|
|
MOZ_ASSERT_IF(
|
|
aValue->Type() == nsAttrValue::eString,
|
|
nsContentUtils::TrimWhitespace<nsContentUtils::IsHTMLWhitespace>(
|
|
aValue->GetStringValue())
|
|
.IsEmpty());
|
|
return true;
|
|
}
|
|
|
|
void Gecko_GetSafeAreaInsets(const nsPresContext* aPresContext, float* aTop,
|
|
float* aRight, float* aBottom, float* aLeft) {
|
|
MOZ_ASSERT(aPresContext);
|
|
ScreenIntMargin safeAreaInsets = aPresContext->GetSafeAreaInsets();
|
|
*aTop = aPresContext->DevPixelsToFloatCSSPixels(safeAreaInsets.top);
|
|
*aRight = aPresContext->DevPixelsToFloatCSSPixels(safeAreaInsets.right);
|
|
*aBottom = aPresContext->DevPixelsToFloatCSSPixels(safeAreaInsets.bottom);
|
|
*aLeft = aPresContext->DevPixelsToFloatCSSPixels(safeAreaInsets.left);
|
|
}
|
|
|
|
void Gecko_PrintfStderr(const nsCString* aStr) {
|
|
printf_stderr("%s", aStr->get());
|
|
}
|
|
|
|
nsAtom* Gecko_Element_ImportedPart(const nsAttrValue* aValue,
|
|
nsAtom* aPartName) {
|
|
if (aValue->Type() != nsAttrValue::eShadowParts) {
|
|
return nullptr;
|
|
}
|
|
return aValue->GetShadowPartsValue().GetReverse(aPartName);
|
|
}
|
|
|
|
nsAtom** Gecko_Element_ExportedParts(const nsAttrValue* aValue,
|
|
nsAtom* aPartName, size_t* aOutLength) {
|
|
if (aValue->Type() != nsAttrValue::eShadowParts) {
|
|
return nullptr;
|
|
}
|
|
auto* parts = aValue->GetShadowPartsValue().Get(aPartName);
|
|
if (!parts) {
|
|
return nullptr;
|
|
}
|
|
*aOutLength = parts->Length();
|
|
static_assert(sizeof(RefPtr<nsAtom>) == sizeof(nsAtom*));
|
|
static_assert(alignof(RefPtr<nsAtom>) == alignof(nsAtom*));
|
|
return reinterpret_cast<nsAtom**>(parts->Elements());
|
|
}
|
|
|
|
bool StyleSingleFontFamily::IsNamedFamily(const nsAString& aFamilyName) const {
|
|
if (!IsFamilyName()) {
|
|
return false;
|
|
}
|
|
nsDependentAtomString name(AsFamilyName().name.AsAtom());
|
|
return name.Equals(aFamilyName, nsCaseInsensitiveStringComparator);
|
|
}
|
|
|
|
StyleSingleFontFamily StyleSingleFontFamily::Parse(
|
|
const nsACString& aFamilyOrGenericName) {
|
|
// should only be passed a single font - not entirely correct, a family
|
|
// *could* have a comma in it but in practice never does so
|
|
// for debug purposes this is fine
|
|
NS_ASSERTION(aFamilyOrGenericName.FindChar(',') == -1,
|
|
"Convert method should only be passed a single family name");
|
|
|
|
auto genericType = Servo_GenericFontFamily_Parse(&aFamilyOrGenericName);
|
|
if (genericType != StyleGenericFontFamily::None) {
|
|
return Generic(genericType);
|
|
}
|
|
return FamilyName({StyleAtom(NS_Atomize(aFamilyOrGenericName)),
|
|
StyleFontFamilyNameSyntax::Identifiers});
|
|
}
|
|
|
|
void StyleSingleFontFamily::AppendToString(nsACString& aName,
|
|
bool aQuote) const {
|
|
if (IsFamilyName()) {
|
|
const auto& name = AsFamilyName();
|
|
if (!aQuote) {
|
|
aName.Append(nsAutoAtomCString(name.name.AsAtom()));
|
|
return;
|
|
}
|
|
Servo_FamilyName_Serialize(&name, &aName);
|
|
return;
|
|
}
|
|
|
|
switch (AsGeneric()) {
|
|
case StyleGenericFontFamily::None:
|
|
case StyleGenericFontFamily::MozEmoji:
|
|
MOZ_FALLTHROUGH_ASSERT("Should never appear in a font-family name!");
|
|
case StyleGenericFontFamily::Serif:
|
|
return aName.AppendLiteral("serif");
|
|
case StyleGenericFontFamily::SansSerif:
|
|
return aName.AppendLiteral("sans-serif");
|
|
case StyleGenericFontFamily::Monospace:
|
|
return aName.AppendLiteral("monospace");
|
|
case StyleGenericFontFamily::Cursive:
|
|
return aName.AppendLiteral("cursive");
|
|
case StyleGenericFontFamily::Fantasy:
|
|
return aName.AppendLiteral("fantasy");
|
|
case StyleGenericFontFamily::SystemUi:
|
|
return aName.AppendLiteral("system-ui");
|
|
}
|
|
MOZ_ASSERT_UNREACHABLE("Unknown generic font-family!");
|
|
return aName.AppendLiteral("serif");
|
|
}
|
|
|
|
StyleFontFamilyList StyleFontFamilyList::WithNames(
|
|
nsTArray<StyleSingleFontFamily>&& aNames) {
|
|
StyleFontFamilyList list;
|
|
Servo_FontFamilyList_WithNames(&aNames, &list);
|
|
return list;
|
|
}
|
|
|
|
StyleFontFamilyList StyleFontFamilyList::WithOneUnquotedFamily(
|
|
const nsACString& aName) {
|
|
AutoTArray<StyleSingleFontFamily, 1> names;
|
|
names.AppendElement(StyleSingleFontFamily::FamilyName(
|
|
{StyleAtom(NS_Atomize(aName)), StyleFontFamilyNameSyntax::Identifiers}));
|
|
return WithNames(std::move(names));
|
|
}
|