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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/core/animation/timing_input.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_effect_timing.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_keyframe_animation_options.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_keyframe_effect_options.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_optional_effect_timing.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_timeline_range.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_timeline_range_offset.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_union_cssnumericvalue_string_unrestricteddouble.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_union_keyframeanimationoptions_unrestricteddouble.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_union_keyframeeffectoptions_unrestricteddouble.h"
#include "third_party/blink/renderer/core/animation/animation_effect.h"
#include "third_party/blink/renderer/core/animation/animation_input_helpers.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/css/css_value_list.h"
#include "third_party/blink/renderer/core/css/cssom/css_unit_values.h"
#include "third_party/blink/renderer/core/css/properties/css_property.h"
#include "third_party/blink/renderer/core/execution_context/security_context.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
#include "third_party/blink/renderer/platform/geometry/calculation_value.h"
namespace blink {
namespace {
Timing::PlaybackDirection ConvertPlaybackDirection(
V8PlaybackDirection::Enum direction) {
switch (direction) {
case V8PlaybackDirection::Enum::kReverse:
return Timing::PlaybackDirection::REVERSE;
case V8PlaybackDirection::Enum::kAlternate:
return Timing::PlaybackDirection::ALTERNATE_NORMAL;
case V8PlaybackDirection::Enum::kAlternateReverse:
return Timing::PlaybackDirection::ALTERNATE_REVERSE;
case V8PlaybackDirection::Enum::kNormal:
return Timing::PlaybackDirection::NORMAL;
}
}
std::optional<AnimationTimeDelta> ConvertIterationDuration(
const V8UnionCSSNumericValueOrStringOrUnrestrictedDouble* duration) {
if (duration->IsUnrestrictedDouble()) {
return ANIMATION_TIME_DELTA_FROM_MILLISECONDS(
duration->GetAsUnrestrictedDouble());
}
return std::nullopt;
}
Timing::Delay ConvertDelay(const Timing::V8Delay* delay,
double default_percent,
ExceptionState& exception_state) {
Timing::Delay result;
if (delay->IsDouble()) {
double delay_in_ms = delay->GetAsDouble();
DCHECK(std::isfinite(delay_in_ms));
result.time_delay = ANIMATION_TIME_DELTA_FROM_MILLISECONDS(delay_in_ms);
} else {
CSSNumericValue* numeric_value = delay->GetAsCSSNumericValue();
CSSUnitValue* unit_value =
numeric_value->to(CSSPrimitiveValue::UnitType::kPercentage);
if (!unit_value) {
exception_state.ThrowTypeError(
"Delay must be a finite double or percentage for animation delay.");
return result;
}
result.relative_delay = 0.01 * unit_value->value();
}
return result;
}
Timing ConvertEffectTiming(const EffectTiming* timing_input,
Document* document,
ExceptionState& exception_state) {
Timing timing_output;
TimingInput::Update(timing_output, timing_input, document, exception_state);
if (!exception_state.HadException()) {
timing_output.AssertValid();
}
return timing_output;
}
template <class V>
bool UpdateValueIfChanged(V& lhs, const V& rhs) {
if (lhs != rhs) {
lhs = rhs;
return true;
}
return false;
}
} // namespace
Timing TimingInput::Convert(
const V8UnionKeyframeEffectOptionsOrUnrestrictedDouble* options,
Document* document,
ExceptionState& exception_state) {
if (!options) {
return Timing();
}
switch (options->GetContentType()) {
case V8UnionKeyframeEffectOptionsOrUnrestrictedDouble::ContentType::
kKeyframeEffectOptions:
return ConvertEffectTiming(options->GetAsKeyframeEffectOptions(),
document, exception_state);
case V8UnionKeyframeEffectOptionsOrUnrestrictedDouble::ContentType::
kUnrestrictedDouble: {
// https://drafts.csswg.org/web-animations-1/#dom-keyframeeffect-keyframeeffect
// If options is a double,
// Let timing input be a new EffectTiming object with all members set to
// their default values and duration set to options.
EffectTiming* timing_input = EffectTiming::Create();
timing_input->setDuration(
MakeGarbageCollected<
V8UnionCSSNumericValueOrStringOrUnrestrictedDouble>(
options->GetAsUnrestrictedDouble()));
return ConvertEffectTiming(timing_input, document, exception_state);
}
}
NOTREACHED();
}
Timing TimingInput::Convert(
const V8UnionKeyframeAnimationOptionsOrUnrestrictedDouble* options,
Document* document,
ExceptionState& exception_state) {
if (!options) {
return Timing();
}
switch (options->GetContentType()) {
case V8UnionKeyframeAnimationOptionsOrUnrestrictedDouble::ContentType::
kKeyframeAnimationOptions:
return ConvertEffectTiming(options->GetAsKeyframeAnimationOptions(),
document, exception_state);
case V8UnionKeyframeAnimationOptionsOrUnrestrictedDouble::ContentType::
kUnrestrictedDouble: {
// https://drafts.csswg.org/web-animations-1/#dom-keyframeeffect-keyframeeffect
// If options is a double,
// Let timing input be a new EffectTiming object with all members set to
// their default values and duration set to options.
EffectTiming* timing_input = EffectTiming::Create();
timing_input->setDuration(
MakeGarbageCollected<
V8UnionCSSNumericValueOrStringOrUnrestrictedDouble>(
options->GetAsUnrestrictedDouble()));
return ConvertEffectTiming(timing_input, document, exception_state);
}
}
NOTREACHED();
}
template <class InputTiming>
bool TimingInput::Update(Timing& timing,
const InputTiming* input,
Document* document,
ExceptionState& exception_state) {
// 1. If the iterationStart member of input is present and less than zero,
// throw a TypeError and abort this procedure.
if (input->hasIterationStart() && input->iterationStart() < 0) {
exception_state.ThrowTypeError("iterationStart must be non-negative");
return false;
}
// 2. If the iterations member of input is present, and less than zero or is
// the value NaN, throw a TypeError and abort this procedure.
if (input->hasIterations() &&
(std::isnan(input->iterations()) || input->iterations() < 0)) {
exception_state.ThrowTypeError("iterationCount must be non-negative");
return false;
}
// 3. If the duration member of input is present, and less than zero or is the
// value NaN, throw a TypeError and abort this procedure.
//
// We also throw if the value is a string but not 'auto', as per
// https://github.com/w3c/csswg-drafts/issues/247 .
if (input->hasDuration()) {
const char* error_message = "duration must be non-negative or auto";
switch (input->duration()->GetContentType()) {
case V8UnionCSSNumericValueOrStringOrUnrestrictedDouble::ContentType::
kCSSNumericValue:
exception_state.ThrowTypeError(
"Setting duration using CSSNumericValue is not supported.");
return false;
case V8UnionCSSNumericValueOrStringOrUnrestrictedDouble::ContentType::
kString:
if (input->duration()->GetAsString() != "auto") {
exception_state.ThrowTypeError(error_message);
return false;
}
break;
case V8UnionCSSNumericValueOrStringOrUnrestrictedDouble::ContentType::
kUnrestrictedDouble: {
double duration = input->duration()->GetAsUnrestrictedDouble();
if (std::isnan(duration) || duration < 0) {
exception_state.ThrowTypeError(error_message);
return false;
}
break;
}
}
}
// 4. If the easing member of input is present but cannot be parsed using the
// <timing-function> production [CSS-TIMING-1], throw a TypeError and abort
// this procedure.
scoped_refptr<TimingFunction> timing_function;
if (input->hasEasing()) {
timing_function = AnimationInputHelpers::ParseTimingFunction(
input->easing(), document, exception_state);
if (!timing_function) {
DCHECK(exception_state.HadException());
return false;
}
}
// 5. Assign each member present in input to the corresponding timing property
// of effect as follows:
bool changed = false;
if (input->hasDelay()) {
changed |= UpdateValueIfChanged(
timing.start_delay, ConvertDelay(input->delay(), 0, exception_state));
timing.SetTimingOverride(Timing::kOverrideStartDelay);
}
if (input->hasEndDelay()) {
changed |= UpdateValueIfChanged(
timing.end_delay,
ConvertDelay(input->endDelay(), 100, exception_state));
timing.SetTimingOverride(Timing::kOverrideEndDelay);
}
if (input->hasFill()) {
changed |= UpdateValueIfChanged(
timing.fill_mode, Timing::EnumToFillMode(input->fill().AsEnum()));
timing.SetTimingOverride(Timing::kOverideFillMode);
}
if (input->hasIterationStart()) {
changed |=
UpdateValueIfChanged(timing.iteration_start, input->iterationStart());
timing.SetTimingOverride(Timing::kOverrideIterationStart);
}
if (input->hasIterations()) {
changed |=
UpdateValueIfChanged(timing.iteration_count, input->iterations());
timing.SetTimingOverride(Timing::kOverrideIterationCount);
}
if (input->hasDuration()) {
changed |= UpdateValueIfChanged(
timing.iteration_duration, ConvertIterationDuration(input->duration()));
timing.SetTimingOverride(Timing::kOverrideDuration);
}
if (input->hasDirection()) {
changed |= UpdateValueIfChanged(
timing.direction,
ConvertPlaybackDirection(input->direction().AsEnum()));
timing.SetTimingOverride(Timing::kOverrideDirection);
}
if (timing_function) {
// We need to compare the timing functions by underlying value to see if
// they have really changed, but update the scoped_refptr, so cant use
// UpdateValueIfChanged.
changed |= (*timing.timing_function != *timing_function);
timing.timing_function = timing_function;
timing.SetTimingOverride(Timing::kOverrideTimingFunction);
}
return changed;
}
// Export the OptionalEffectTiming version for AnimationEffect::updateTiming.
template CORE_EXPORT bool TimingInput::Update(Timing&,
const OptionalEffectTiming*,
Document*,
ExceptionState&);
} // namespace blink
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