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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/. */
/* Code to start and animate CSS transitions. */
#ifndef nsTransitionManager_h_
#define nsTransitionManager_h_
#include "mozilla/dom/CSSTransition.h"
#include "AnimationCommon.h"
#include "nsISupportsImpl.h"
class nsPresContext;
class nsCSSPropertyIDSet;
namespace mozilla {
class ComputedStyle;
enum class PseudoStyleType : uint8_t;
} // namespace mozilla
class nsTransitionManager final
: public mozilla::CommonAnimationManager<mozilla::dom::CSSTransition> {
public:
explicit nsTransitionManager(nsPresContext* aPresContext)
: mozilla::CommonAnimationManager<mozilla::dom::CSSTransition>(
aPresContext) {}
~nsTransitionManager() final = default;
typedef mozilla::AnimationCollection<mozilla::dom::CSSTransition>
CSSTransitionCollection;
/**
* Update transitions for stylo.
*/
bool UpdateTransitions(mozilla::dom::Element* aElement,
mozilla::PseudoStyleType aPseudoType,
const mozilla::ComputedStyle& aOldStyle,
const mozilla::ComputedStyle& aNewStyle);
protected:
typedef nsTArray<RefPtr<mozilla::dom::CSSTransition>>
OwningCSSTransitionPtrArray;
// Update transitions. This will start new transitions,
// replace existing transitions, and stop existing transitions
// as needed. aDisp and aElement must be non-null.
// aElementTransitions is the collection of current transitions, and it
// could be a nullptr if we don't have any transitions.
bool DoUpdateTransitions(const nsStyleDisplay& aDisp,
mozilla::dom::Element* aElement,
mozilla::PseudoStyleType aPseudoType,
CSSTransitionCollection*& aElementTransitions,
const mozilla::ComputedStyle& aOldStyle,
const mozilla::ComputedStyle& aNewStyle);
// Returns whether the transition actually started.
bool ConsiderInitiatingTransition(
nsCSSPropertyID aProperty, const nsStyleDisplay& aStyleDisplay,
uint32_t transitionIdx, mozilla::dom::Element* aElement,
mozilla::PseudoStyleType aPseudoType,
CSSTransitionCollection*& aElementTransitions,
const mozilla::ComputedStyle& aOldStyle,
const mozilla::ComputedStyle& aNewStyle,
nsCSSPropertyIDSet& aPropertiesChecked);
};
#endif /* !defined(nsTransitionManager_h_) */
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