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/* -*- 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_dom_AnimationUtils_h
#define mozilla_dom_AnimationUtils_h
#include "mozilla/TimeStamp.h"
#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/dom/Nullable.h"
#include "nsRFPService.h"
#include "nsStringFwd.h"
class nsIContent;
class nsIFrame;
struct JSContext;
namespace mozilla {
enum class PseudoStyleType : uint8_t;
class ComputedTimingFunction;
class EffectSet;
namespace dom {
class Document;
class Element;
} // namespace dom
class AnimationUtils {
public:
typedef dom::Document Document;
static dom::Nullable<double> TimeDurationToDouble(
const dom::Nullable<TimeDuration>& aTime) {
dom::Nullable<double> result;
if (!aTime.IsNull()) {
// 0 is an inappropriate mixin for this this area; however CSS Animations
// needs to have it's Time Reduction Logic refactored, so it's currently
// only clamping for RFP mode. RFP mode gives a much lower time precision,
// so we accept the security leak here for now
result.SetValue(nsRFPService::ReduceTimePrecisionAsMSecsRFPOnly(
aTime.Value().ToMilliseconds(), 0));
}
return result;
}
static dom::Nullable<TimeDuration> DoubleToTimeDuration(
const dom::Nullable<double>& aTime) {
dom::Nullable<TimeDuration> result;
if (!aTime.IsNull()) {
result.SetValue(TimeDuration::FromMilliseconds(aTime.Value()));
}
return result;
}
static void LogAsyncAnimationFailure(nsCString& aMessage,
const nsIContent* aContent = nullptr);
/**
* Get the document from the JS context to use when parsing CSS properties.
*/
static Document* GetCurrentRealmDocument(JSContext* aCx);
/**
* Get the document from the global object, or nullptr if the document has
* no window, to use when constructing DOM object without entering the
* target window's compartment (see KeyframeEffect constructor).
*/
static Document* GetDocumentFromGlobal(JSObject* aGlobalObject);
/**
* Returns true if the given frame has an animated scale.
*/
static bool FrameHasAnimatedScale(const nsIFrame* aFrame);
/**
* Returns true if the given (pseudo-)element has any transitions that are
* current (playing or waiting to play) or in effect (e.g. filling forwards).
*/
static bool HasCurrentTransitions(const dom::Element* aElement,
PseudoStyleType aPseudoType);
};
} // namespace mozilla
#endif
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