94 lines
2.9 KiB
C++
94 lines
2.9 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 mozilla_AnimatedPropertyID_h
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#define mozilla_AnimatedPropertyID_h
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#include "nsCSSPropertyID.h"
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#include "nsCSSProps.h"
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#include "nsString.h"
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#include "mozilla/HashFunctions.h"
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#include "mozilla/ServoBindings.h"
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namespace mozilla {
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struct AnimatedPropertyID {
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explicit AnimatedPropertyID(nsCSSPropertyID aProperty) : mID(aProperty) {
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MOZ_ASSERT(aProperty != eCSSPropertyExtra_variable,
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"Cannot create an AnimatedPropertyID from only a "
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"eCSSPropertyExtra_variable.");
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}
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explicit AnimatedPropertyID(RefPtr<nsAtom> aCustomName)
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: mID(eCSSPropertyExtra_variable), mCustomName(std::move(aCustomName)) {
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MOZ_ASSERT(mCustomName, "Null custom property name");
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}
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nsCSSPropertyID mID = eCSSProperty_UNKNOWN;
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RefPtr<nsAtom> mCustomName;
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bool IsCustom() const { return mID == eCSSPropertyExtra_variable; }
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bool operator==(const AnimatedPropertyID& aOther) const {
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return mID == aOther.mID && mCustomName == aOther.mCustomName;
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}
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bool operator!=(const AnimatedPropertyID& aOther) const {
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return !(*this == aOther);
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}
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bool IsValid() const {
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if (mID == eCSSProperty_UNKNOWN) {
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return false;
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}
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return IsCustom() == !!mCustomName;
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}
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void ToString(nsACString& aString) const {
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if (IsCustom()) {
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MOZ_ASSERT(mCustomName, "Custom property should have a name");
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// mCustomName does not include the "--" prefix
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aString.AssignLiteral("--");
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AppendUTF16toUTF8(nsDependentAtomString(mCustomName), aString);
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} else {
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aString.Assign(nsCSSProps::GetStringValue(mID));
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}
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}
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void ToString(nsAString& aString) const {
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if (IsCustom()) {
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MOZ_ASSERT(mCustomName, "Custom property should have a name");
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// mCustomName does not include the "--" prefix
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aString.AssignLiteral("--");
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aString.Append(nsDependentAtomString(mCustomName));
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} else {
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aString.Assign(NS_ConvertUTF8toUTF16(nsCSSProps::GetStringValue(mID)));
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}
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}
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HashNumber Hash() const {
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HashNumber hash = mCustomName ? mCustomName->hash() : 0;
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return AddToHash(hash, mID);
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}
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AnimatedPropertyID ToPhysical(const ComputedStyle& aStyle) const {
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if (IsCustom()) {
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return *this;
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}
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return AnimatedPropertyID{nsCSSProps::Physicalize(mID, aStyle)};
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}
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};
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// MOZ_DBG support for AnimatedPropertyId
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inline std::ostream& operator<<(std::ostream& aOut,
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const AnimatedPropertyID& aProperty) {
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if (aProperty.IsCustom()) {
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return aOut << nsAtomCString(aProperty.mCustomName);
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}
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return aOut << nsCSSProps::GetStringValue(aProperty.mID);
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}
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} // namespace mozilla
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#endif // mozilla_AnimatedPropertyID_h
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