/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_AnimatedPropertyID_h
#define mozilla_AnimatedPropertyID_h
#include "nsCSSPropertyID.h"
#include "nsCSSProps.h"
#include "nsString.h"
#include "mozilla/HashFunctions.h"
#include "mozilla/ServoBindings.h"
namespace mozilla {
struct AnimatedPropertyID {
explicit AnimatedPropertyID(nsCSSPropertyID aProperty) : mID(aProperty) {
MOZ_ASSERT(aProperty != eCSSPropertyExtra_variable,
"Cannot create an AnimatedPropertyID from only a "
"eCSSPropertyExtra_variable.");
}
explicit AnimatedPropertyID(RefPtr<nsAtom> aCustomName)
: mID(eCSSPropertyExtra_variable), mCustomName(std::move(aCustomName)) {
MOZ_ASSERT(mCustomName,
"Null custom property name");
}
nsCSSPropertyID mID = eCSSProperty_UNKNOWN;
RefPtr<nsAtom> mCustomName;
bool IsCustom()
const {
return mID == eCSSPropertyExtra_variable; }
bool operator==(
const AnimatedPropertyID& aOther)
const {
return mID == aOther.mID && mCustomName == aOther.mCustomName;
}
bool operator!=(
const AnimatedPropertyID& aOther)
const {
return !(*
this == aOther);
}
bool IsValid()
const {
if (mID == eCSSProperty_UNKNOWN) {
return false;
}
return IsCustom() == !!mCustomName;
}
void ToString(nsACString& aString)
const {
if (IsCustom()) {
MOZ_ASSERT(mCustomName,
"Custom property should have a name");
// mCustomName does not include the "--" prefix
aString.AssignLiteral(
"--");
AppendUTF16toUTF8(nsDependentAtomString(mCustomName), aString);
}
else {
aString.Assign(nsCSSProps::GetStringValue(mID));
}
}
void ToString(nsAString& aString)
const {
if (IsCustom()) {
MOZ_ASSERT(mCustomName,
"Custom property should have a name");
// mCustomName does not include the "--" prefix
aString.AssignLiteral(
"--");
aString.Append(nsDependentAtomString(mCustomName));
}
else {
aString.Assign(NS_ConvertUTF8toUTF16(nsCSSProps::GetStringValue(mID)));
}
}
HashNumber Hash()
const {
HashNumber hash = mCustomName ? mCustomName->hash() :
0;
return AddToHash(hash, mID);
}
AnimatedPropertyID ToPhysical(
const ComputedStyle& aStyle)
const {
if (IsCustom()) {
return *
this;
}
return AnimatedPropertyID{nsCSSProps::Physicalize(mID, aStyle)};
}
};
// MOZ_DBG support for AnimatedPropertyId
inline std::ostream&
operator<<(std::ostream& aOut,
const AnimatedPropertyID& aProperty) {
if (aProperty.IsCustom()) {
return aOut << nsAtomCString(aProperty.mCustomName);
}
return aOut << nsCSSProps::GetStringValue(aProperty.mID);
}
}
// namespace mozilla
#endif // mozilla_AnimatedPropertyID_h
