1 /* 2 * Copyright (C) 2013 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include "config.h" 32 #include "core/animation/EffectInput.h" 33 34 #include "bindings/core/v8/Dictionary.h" 35 #include "core/animation/AnimationInputHelpers.h" 36 #include "core/animation/KeyframeEffectModel.h" 37 #include "core/animation/StringKeyframe.h" 38 #include "core/css/resolver/StyleResolver.h" 39 #include "core/dom/Document.h" 40 #include "core/dom/Element.h" 41 #include "wtf/NonCopyingSort.h" 42 43 namespace blink { 44 45 PassRefPtrWillBeRawPtr<AnimationEffect> EffectInput::convert(Element* element, const Vector<Dictionary>& keyframeDictionaryVector, ExceptionState& exceptionState) 46 { 47 // FIXME: Remove the dependency on element. 48 if (!element) 49 return nullptr; 50 51 StyleSheetContents* styleSheetContents = element->document().elementSheet().contents(); 52 StringKeyframeVector keyframes; 53 double lastOffset = 0; 54 55 for (size_t i = 0; i < keyframeDictionaryVector.size(); ++i) { 56 RefPtrWillBeRawPtr<StringKeyframe> keyframe = StringKeyframe::create(); 57 58 ScriptValue scriptValue; 59 bool frameHasOffset = DictionaryHelper::get(keyframeDictionaryVector[i], "offset", scriptValue) && !scriptValue.isNull(); 60 61 if (frameHasOffset) { 62 double offset; 63 DictionaryHelper::get(keyframeDictionaryVector[i], "offset", offset); 64 65 // Keyframes with offsets outside the range [0.0, 1.0] are an error. 66 if (std::isnan(offset)) { 67 exceptionState.throwDOMException(InvalidModificationError, "Non numeric offset provided"); 68 } 69 70 if (offset < 0 || offset > 1) { 71 exceptionState.throwDOMException(InvalidModificationError, "Offsets provided outside the range [0, 1]"); 72 return nullptr; 73 } 74 75 if (offset < lastOffset) { 76 exceptionState.throwDOMException(InvalidModificationError, "Keyframes with specified offsets are not sorted"); 77 return nullptr; 78 } 79 80 lastOffset = offset; 81 82 keyframe->setOffset(offset); 83 } 84 keyframes.append(keyframe); 85 86 String compositeString; 87 DictionaryHelper::get(keyframeDictionaryVector[i], "composite", compositeString); 88 if (compositeString == "add") 89 keyframe->setComposite(AnimationEffect::CompositeAdd); 90 91 String timingFunctionString; 92 if (DictionaryHelper::get(keyframeDictionaryVector[i], "easing", timingFunctionString)) { 93 if (RefPtr<TimingFunction> timingFunction = AnimationInputHelpers::parseTimingFunction(timingFunctionString)) 94 keyframe->setEasing(timingFunction); 95 } 96 97 Vector<String> keyframeProperties; 98 keyframeDictionaryVector[i].getOwnPropertyNames(keyframeProperties); 99 for (size_t j = 0; j < keyframeProperties.size(); ++j) { 100 String property = keyframeProperties[j]; 101 CSSPropertyID id = AnimationInputHelpers::keyframeAttributeToCSSPropertyID(property); 102 if (id == CSSPropertyInvalid) 103 continue; 104 String value; 105 DictionaryHelper::get(keyframeDictionaryVector[i], property, value); 106 keyframe->setPropertyValue(id, value, styleSheetContents); 107 } 108 } 109 110 RefPtrWillBeRawPtr<StringKeyframeEffectModel> keyframeEffectModel = StringKeyframeEffectModel::create(keyframes); 111 if (!keyframeEffectModel->isReplaceOnly()) { 112 exceptionState.throwDOMException(NotSupportedError, "Partial keyframes are not supported."); 113 return nullptr; 114 } 115 keyframeEffectModel->forceConversionsToAnimatableValues(element); 116 117 return keyframeEffectModel; 118 } 119 120 } // namespace blink 121