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20fffd9955
MozReview-Commit-ID: CgwsJQKB1qj
199 lines
6.2 KiB
C++
199 lines
6.2 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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#include "mozilla/TimingParams.h"
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#include "mozilla/AnimationUtils.h"
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#include "mozilla/dom/AnimatableBinding.h"
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#include "mozilla/dom/KeyframeEffectBinding.h"
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#include "nsCSSParser.h" // For nsCSSParser
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#include "nsIDocument.h"
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#include "nsRuleNode.h"
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namespace mozilla {
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template <class OptionsType>
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static const dom::AnimationEffectTimingProperties&
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GetTimingProperties(const OptionsType& aOptions);
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template <>
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/* static */ const dom::AnimationEffectTimingProperties&
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GetTimingProperties(
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const dom::UnrestrictedDoubleOrKeyframeEffectOptions& aOptions)
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{
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MOZ_ASSERT(aOptions.IsKeyframeEffectOptions());
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return aOptions.GetAsKeyframeEffectOptions();
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}
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template <>
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/* static */ const dom::AnimationEffectTimingProperties&
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GetTimingProperties(
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const dom::UnrestrictedDoubleOrKeyframeAnimationOptions& aOptions)
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{
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MOZ_ASSERT(aOptions.IsKeyframeAnimationOptions());
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return aOptions.GetAsKeyframeAnimationOptions();
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}
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template <class OptionsType>
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static TimingParams
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TimingParamsFromOptionsUnion(const OptionsType& aOptions,
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nsIDocument* aDocument,
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ErrorResult& aRv)
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{
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TimingParams result;
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if (aOptions.IsUnrestrictedDouble()) {
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double durationInMs = aOptions.GetAsUnrestrictedDouble();
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if (durationInMs >= 0) {
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result.mDuration.emplace(
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StickyTimeDuration::FromMilliseconds(durationInMs));
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} else {
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aRv.Throw(NS_ERROR_DOM_TYPE_ERR);
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}
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} else {
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const dom::AnimationEffectTimingProperties& timing =
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GetTimingProperties(aOptions);
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Maybe<StickyTimeDuration> duration =
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TimingParams::ParseDuration(timing.mDuration, aRv);
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if (aRv.Failed()) {
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return result;
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}
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TimingParams::ValidateIterationStart(timing.mIterationStart, aRv);
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if (aRv.Failed()) {
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return result;
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}
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TimingParams::ValidateIterations(timing.mIterations, aRv);
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if (aRv.Failed()) {
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return result;
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}
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Maybe<ComputedTimingFunction> easing =
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TimingParams::ParseEasing(timing.mEasing, aDocument, aRv);
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if (aRv.Failed()) {
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return result;
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}
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result.mDuration = duration;
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result.mDelay = TimeDuration::FromMilliseconds(timing.mDelay);
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result.mEndDelay = TimeDuration::FromMilliseconds(timing.mEndDelay);
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result.mIterations = timing.mIterations;
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result.mIterationStart = timing.mIterationStart;
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result.mDirection = timing.mDirection;
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result.mFill = timing.mFill;
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result.mFunction = easing;
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}
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return result;
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}
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/* static */ TimingParams
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TimingParams::FromOptionsUnion(
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const dom::UnrestrictedDoubleOrKeyframeEffectOptions& aOptions,
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nsIDocument* aDocument,
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ErrorResult& aRv)
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{
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return TimingParamsFromOptionsUnion(aOptions, aDocument, aRv);
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}
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/* static */ TimingParams
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TimingParams::FromOptionsUnion(
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const dom::UnrestrictedDoubleOrKeyframeAnimationOptions& aOptions,
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nsIDocument* aDocument,
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ErrorResult& aRv)
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{
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return TimingParamsFromOptionsUnion(aOptions, aDocument, aRv);
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}
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/* static */ Maybe<ComputedTimingFunction>
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TimingParams::ParseEasing(const nsAString& aEasing,
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nsIDocument* aDocument,
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ErrorResult& aRv)
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{
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MOZ_ASSERT(aDocument);
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nsCSSValue value;
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nsCSSParser parser;
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parser.ParseLonghandProperty(eCSSProperty_animation_timing_function,
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aEasing,
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aDocument->GetDocumentURI(),
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aDocument->GetDocumentURI(),
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aDocument->NodePrincipal(),
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value);
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switch (value.GetUnit()) {
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case eCSSUnit_List: {
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const nsCSSValueList* list = value.GetListValue();
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if (list->mNext) {
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// don't support a list of timing functions
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break;
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}
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switch (list->mValue.GetUnit()) {
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case eCSSUnit_Enumerated:
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// Return Nothing() if "linear" is passed in.
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if (list->mValue.GetIntValue() ==
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NS_STYLE_TRANSITION_TIMING_FUNCTION_LINEAR) {
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return Nothing();
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}
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MOZ_FALLTHROUGH;
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case eCSSUnit_Cubic_Bezier:
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case eCSSUnit_Steps: {
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nsTimingFunction timingFunction;
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nsRuleNode::ComputeTimingFunction(list->mValue, timingFunction);
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ComputedTimingFunction computedTimingFunction;
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computedTimingFunction.Init(timingFunction);
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return Some(computedTimingFunction);
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}
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default:
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MOZ_ASSERT_UNREACHABLE("unexpected animation-timing-function list "
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"item unit");
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break;
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}
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break;
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}
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case eCSSUnit_Inherit:
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case eCSSUnit_Initial:
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case eCSSUnit_Unset:
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case eCSSUnit_TokenStream:
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case eCSSUnit_Null:
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break;
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default:
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MOZ_ASSERT_UNREACHABLE("unexpected animation-timing-function unit");
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break;
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}
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// Bug 1247004
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//
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// The Web Animations polyfill had a bug that translated 'linear' into
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// the string 'function (a){return a}'. This bug has been fixed but older
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// versions of the polyfill are still widely used. Google are collecting
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// usage data on this but for now we need to *not* throw on
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// 'function (a){return a}' or else a lot of sites will break.
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//
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// Instead, we should treat this string as equivalent to 'linear' and
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// return Nothing().
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//
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// Chromium has a similar special case path for this string.
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// See: https://bugs.chromium.org/p/chromium/issues/detail?id=601672
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if (aEasing == NS_LITERAL_STRING("function (a){return a}")) {
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return Nothing();
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}
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aRv.ThrowTypeError<dom::MSG_INVALID_EASING_ERROR>(aEasing);
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return Nothing();
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}
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bool
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TimingParams::operator==(const TimingParams& aOther) const
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{
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return mDuration == aOther.mDuration &&
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mDelay == aOther.mDelay &&
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mIterations == aOther.mIterations &&
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mIterationStart == aOther.mIterationStart &&
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mDirection == aOther.mDirection &&
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mFill == aOther.mFill &&
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mFunction == aOther.mFunction;
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}
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} // namespace mozilla
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