mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-13 21:35:39 +00:00
143 lines
4.4 KiB
C++
143 lines
4.4 KiB
C++
/* -*- 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/. */
|
|
|
|
/* Utilities for animation of computed style values */
|
|
|
|
#ifndef mozilla_StyleAnimationValue_h_
|
|
#define mozilla_StyleAnimationValue_h_
|
|
|
|
#include "mozilla/gfx/MatrixFwd.h"
|
|
#include "mozilla/gfx/Point.h"
|
|
#include "mozilla/ServoBindingTypes.h"
|
|
#include "mozilla/UniquePtr.h"
|
|
#include "nsStringFwd.h"
|
|
#include "nsStringBuffer.h"
|
|
#include "nsCoord.h"
|
|
#include "nsColor.h"
|
|
#include "nsCSSProps.h"
|
|
#include "nsCSSValue.h"
|
|
#include "nsStyleCoord.h"
|
|
#include "nsStyleTransformMatrix.h"
|
|
|
|
class nsIFrame;
|
|
class gfx3DMatrix;
|
|
|
|
namespace mozilla {
|
|
|
|
class ComputedStyle;
|
|
class GeckoComputedStyle;
|
|
|
|
namespace css {
|
|
class StyleRule;
|
|
} // namespace css
|
|
|
|
namespace dom {
|
|
class Element;
|
|
} // namespace dom
|
|
|
|
enum class CSSPseudoElementType : uint8_t;
|
|
enum class StyleBackendType : uint8_t;
|
|
struct PropertyStyleAnimationValuePair;
|
|
|
|
|
|
struct AnimationValue
|
|
{
|
|
explicit AnimationValue(const RefPtr<RawServoAnimationValue>& aValue)
|
|
: mServo(aValue) { }
|
|
AnimationValue() = default;
|
|
|
|
AnimationValue(const AnimationValue& aOther)
|
|
: mServo(aOther.mServo) { }
|
|
AnimationValue(AnimationValue&& aOther)
|
|
: mServo(Move(aOther.mServo)) { }
|
|
|
|
AnimationValue& operator=(const AnimationValue& aOther)
|
|
{
|
|
if (this != &aOther) {
|
|
mServo = aOther.mServo;
|
|
}
|
|
return *this;
|
|
}
|
|
AnimationValue& operator=(AnimationValue&& aOther)
|
|
{
|
|
MOZ_ASSERT(this != &aOther, "Do not move itself");
|
|
if (this != &aOther) {
|
|
mServo = Move(aOther.mServo);
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
bool operator==(const AnimationValue& aOther) const;
|
|
bool operator!=(const AnimationValue& aOther) const;
|
|
|
|
bool IsNull() const
|
|
{
|
|
return !mServo;
|
|
}
|
|
|
|
float GetOpacity() const;
|
|
|
|
// Return the transform list as a RefPtr.
|
|
already_AddRefed<const nsCSSValueSharedList> GetTransformList() const;
|
|
|
|
// Return the scale for mGecko or mServo, which are calculated with
|
|
// reference to aFrame.
|
|
mozilla::gfx::Size GetScaleValue(const nsIFrame* aFrame) const;
|
|
|
|
// Uncompute this AnimationValue and then serialize it.
|
|
void SerializeSpecifiedValue(nsCSSPropertyID aProperty,
|
|
nsAString& aString) const;
|
|
|
|
// Check if |*this| and |aToValue| can be interpolated.
|
|
bool IsInterpolableWith(nsCSSPropertyID aProperty,
|
|
const AnimationValue& aToValue) const;
|
|
|
|
// Compute the distance between *this and aOther.
|
|
// If |aComputedStyle| is nullptr, we will return 0.0 if we have mismatched
|
|
// transform lists.
|
|
double ComputeDistance(nsCSSPropertyID aProperty,
|
|
const AnimationValue& aOther,
|
|
ComputedStyle* aComputedStyle) const;
|
|
|
|
// Create an AnimaitonValue from a string. This method flushes style, so we
|
|
// should use this carefully. Now, it is only used by
|
|
// nsDOMWindowUtils::ComputeAnimationDistance.
|
|
static AnimationValue FromString(nsCSSPropertyID aProperty,
|
|
const nsAString& aValue,
|
|
dom::Element* aElement);
|
|
|
|
// Create an AnimationValue from an opacity value.
|
|
static AnimationValue Opacity(StyleBackendType aBackendType, float aOpacity);
|
|
// Create an AnimationValue from a transform list.
|
|
static AnimationValue Transform(StyleBackendType aBackendType,
|
|
nsCSSValueSharedList& aList);
|
|
|
|
static already_AddRefed<nsCSSValue::Array>
|
|
AppendTransformFunction(nsCSSKeyword aTransformFunction,
|
|
nsCSSValueList**& aListTail);
|
|
|
|
// mGecko and mServo are mutually exclusive: only one or the other should
|
|
// ever be set.
|
|
// FIXME: After obsoleting StyleAnimationValue, we should remove mGecko, and
|
|
// make AnimationValue a wrapper of RawServoAnimationValue to hide these
|
|
// FFIs.
|
|
// Ideally we would use conditional compilation based on MOZ_OLD_STYLE in the
|
|
// Servo code that wants to initialize mGecko, but that seems tricky. So for
|
|
// now, just define a dummy member variable that its initialization code will
|
|
// work on, even when the old style system is compiled out.
|
|
uintptr_t mGecko;
|
|
RefPtr<RawServoAnimationValue> mServo;
|
|
};
|
|
|
|
struct PropertyStyleAnimationValuePair
|
|
{
|
|
nsCSSPropertyID mProperty;
|
|
AnimationValue mValue;
|
|
};
|
|
} // namespace mozilla
|
|
|
|
#endif
|