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/*
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "core/animation/EffectInput.h"
#include "bindings/v8/Dictionary.h"
#include "core/animation/AnimationHelpers.h"
#include "core/animation/KeyframeEffectModel.h"
#include "core/animation/StringKeyframe.h"
#include "core/css/parser/BisonCSSParser.h"
#include "core/css/resolver/CSSToStyleMap.h"
#include "core/css/resolver/StyleResolver.h"
#include "core/dom/Element.h"
#include "wtf/NonCopyingSort.h"
namespace WebCore {
PassRefPtrWillBeRawPtr<AnimationEffect> EffectInput::convert(Element* element, const Vector<Dictionary>& keyframeDictionaryVector, ExceptionState& exceptionState)
{
// FIXME: Remove the dependency on element.
if (!element)
return nullptr;
StyleSheetContents* styleSheetContents = element->document().elementSheet().contents();
StringKeyframeVector keyframes;
bool everyFrameHasOffset = true;
bool looselySortedByOffset = true;
double lastOffset = -std::numeric_limits<double>::infinity();
for (size_t i = 0; i < keyframeDictionaryVector.size(); ++i) {
RefPtrWillBeRawPtr<StringKeyframe> keyframe = StringKeyframe::create();
bool frameHasOffset = false;
double offset;
if (keyframeDictionaryVector[i].get("offset", offset)) {
// Keyframes with offsets outside the range [0.0, 1.0] are ignored.
if (std::isnan(offset) || offset < 0 || offset > 1)
continue;
frameHasOffset = true;
// The JS value null gets converted to 0 so we need to check whether the original value is null.
if (offset == 0) {
ScriptValue scriptValue;
if (keyframeDictionaryVector[i].get("offset", scriptValue) && scriptValue.isNull())
frameHasOffset = false;
}
if (frameHasOffset) {
keyframe->setOffset(offset);
if (offset < lastOffset)
looselySortedByOffset = false;
lastOffset = offset;
}
}
everyFrameHasOffset = everyFrameHasOffset && frameHasOffset;
keyframes.append(keyframe);
String compositeString;
keyframeDictionaryVector[i].get("composite", compositeString);
if (compositeString == "add")
keyframe->setComposite(AnimationEffect::CompositeAdd);
String timingFunctionString;
if (keyframeDictionaryVector[i].get("easing", timingFunctionString)) {
if (RefPtrWillBeRawPtr<CSSValue> timingFunctionValue = BisonCSSParser::parseAnimationTimingFunctionValue(timingFunctionString))
keyframe->setEasing(CSSToStyleMap::mapAnimationTimingFunction(timingFunctionValue.get(), true));
}
Vector<String> keyframeProperties;
keyframeDictionaryVector[i].getOwnPropertyNames(keyframeProperties);
for (size_t j = 0; j < keyframeProperties.size(); ++j) {
String property = keyframeProperties[j];
CSSPropertyID id = camelCaseCSSPropertyNameToID(property);
if (id == CSSPropertyInvalid)
continue;
String value;
keyframeDictionaryVector[i].get(property, value);
keyframe->setPropertyValue(id, value, styleSheetContents);
}
}
if (!looselySortedByOffset) {
if (!everyFrameHasOffset) {
exceptionState.throwDOMException(InvalidModificationError, "Keyframes are not loosely sorted by offset.");
return nullptr;
}
nonCopyingSort(keyframes.begin(), keyframes.end(), Keyframe::compareOffsets);
}
RefPtrWillBeRawPtr<StringKeyframeEffectModel> keyframeEffectModel = StringKeyframeEffectModel::create(keyframes);
if (!keyframeEffectModel->isReplaceOnly()) {
exceptionState.throwDOMException(NotSupportedError, "Partial keyframes are not supported.");
return nullptr;
}
keyframeEffectModel->forceConversionsToAnimatableValues(element);
return keyframeEffectModel;
}
} // namespace WebCore
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