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| 1 /* | |
| 2 * Copyright (C) 2012 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 * | |
| 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 30 */ | |
| 31 | |
| 32 #include "config.h" | |
| 33 #include "bindings/core/dart/DartCustomElementWrapper.h" | |
| 34 | |
| 35 #include "bindings/core/dart/DartCustomElementLifecycleCallbacks.h" | |
| 36 #include "bindings/core/dart/DartHTMLElement.h" | |
| 37 #include "bindings/core/dart/DartSVGElement.h" | |
| 38 #include "core/DartHTMLElementWrapperFactory.h" | |
| 39 #include "core/DartSVGElementWrapperFactory.h" | |
| 40 #include "core/dom/custom/CustomElement.h" | |
| 41 #include "core/html/HTMLElement.h" | |
| 42 #include "core/html/HTMLUnknownElement.h" | |
| 43 #include "core/svg/SVGElement.h" | |
| 44 | |
| 45 namespace blink { | |
| 46 | |
| 47 template<typename ElementType> | |
| 48 Dart_Handle createDartDirectWrapper(DartDOMData*, ElementType*); | |
| 49 | |
| 50 template<> | |
| 51 Dart_Handle createDartDirectWrapper<HTMLElement>(DartDOMData* domData, HTMLEleme
nt* element) | |
| 52 { | |
| 53 return DartDOMWrapper::createWrapper<DartHTMLElement>(domData, element); | |
| 54 } | |
| 55 | |
| 56 template<> | |
| 57 Dart_Handle createDartDirectWrapper<SVGElement>(DartDOMData* domData, SVGElement
* element) | |
| 58 { | |
| 59 return DartDOMWrapper::createWrapper<DartSVGElement>(domData, element); | |
| 60 } | |
| 61 | |
| 62 template<typename ElementType> | |
| 63 Dart_Handle createDartFallbackWrapper(DartDOMData*, ElementType*); | |
| 64 | |
| 65 template<> | |
| 66 Dart_Handle createDartFallbackWrapper<HTMLElement>(DartDOMData* domData, HTMLEle
ment* element) | |
| 67 { | |
| 68 return createDartHTMLFallbackWrapper(domData, toHTMLUnknownElement(element))
; | |
| 69 } | |
| 70 | |
| 71 template<> | |
| 72 Dart_Handle createDartFallbackWrapper<SVGElement>(DartDOMData* domData, SVGEleme
nt* element) | |
| 73 { | |
| 74 return createDartSVGFallbackWrapper(domData, element); | |
| 75 } | |
| 76 | |
| 77 template<typename ElementType> | |
| 78 Dart_Handle createUpgradeCandidateWrapper(ElementType* element, Dart_Handle (*cr
eateSpecificWrapper)(DartDOMData*, ElementType* element)) | |
| 79 { | |
| 80 DartDOMData* domData = DartDOMData::current(); | |
| 81 if (CustomElement::isValidName(element->localName())) | |
| 82 return createDartDirectWrapper(domData, element); | |
| 83 if (createSpecificWrapper) | |
| 84 return createSpecificWrapper(domData, element); | |
| 85 return createDartFallbackWrapper(domData, element); | |
| 86 } | |
| 87 | |
| 88 template<typename ElementType> | |
| 89 Dart_Handle DartCustomElementWrapper<ElementType>::wrap(PassRefPtr<ElementType>
element, Dart_Handle (*createSpecificWrapper)(DartDOMData* domData, ElementType*
)) | |
| 90 { | |
| 91 if (!element->isUpgradedCustomElement()) | |
| 92 return createUpgradeCandidateWrapper(element.get(), createSpecificWrappe
r); | |
| 93 | |
| 94 return upgradeDartWrapper(element.get(), createSpecificWrapper); | |
| 95 } | |
| 96 | |
| 97 template<> | |
| 98 Dart_Handle DartCustomElementWrapper<HTMLElement>::swapElementWrapper(DartDOMDat
a* domData, HTMLElement* element, Dart_Handle wrapperType, intptr_t nativeClassI
d) | |
| 99 { | |
| 100 Dart_WeakPersistentHandle oldInstance = DartDOMWrapper::lookupWrapper<DartHT
MLElement>( | |
| 101 domData, reinterpret_cast<HTMLElement*>(element)); | |
| 102 Dart_Handle oldWrapper = 0; | |
| 103 if (oldInstance) { | |
| 104 oldWrapper = Dart_HandleFromWeakPersistent(oldInstance); | |
| 105 DartDOMWrapper::disassociateWrapper<DartHTMLElement>( | |
| 106 domData, | |
| 107 reinterpret_cast<HTMLElement*>(element), | |
| 108 oldWrapper); | |
| 109 } | |
| 110 | |
| 111 Dart_Handle newWrapper = Dart_Allocate(wrapperType); | |
| 112 ASSERT(!Dart_IsError(newWrapper)); | |
| 113 DartDOMWrapper::writeNativePointer(newWrapper, element, nativeClassId); | |
| 114 | |
| 115 Dart_Handle result = Dart_InvokeConstructor(newWrapper, Dart_NewStringFromCS
tring("created"), 0, 0); | |
| 116 | |
| 117 if (Dart_IsError(result)) { | |
| 118 DartUtilities::reportProblem(domData->scriptExecutionContext(), result); | |
| 119 | |
| 120 // Fall back to the old wrapper if possible. | |
| 121 if (oldWrapper) { | |
| 122 DartDOMWrapper::associateWrapper<DartHTMLElement>(domData, element,
oldWrapper); | |
| 123 return oldWrapper; | |
| 124 } | |
| 125 return result; | |
| 126 } | |
| 127 return newWrapper; | |
| 128 } | |
| 129 | |
| 130 template<> | |
| 131 Dart_Handle DartCustomElementWrapper<SVGElement>::swapElementWrapper(DartDOMData
* domData, SVGElement* element, Dart_Handle wrapperType, intptr_t nativeClassId) | |
| 132 { | |
| 133 // TODO: support SVG elements. | |
| 134 ASSERT(FALSE); | |
| 135 return Dart_Handle(); | |
| 136 } | |
| 137 | |
| 138 template<> | |
| 139 Dart_Handle DartCustomElementWrapper<HTMLElement>::upgradeDartWrapper(HTMLElemen
t* element, Dart_Handle (*createSpecificWrapper)(DartDOMData*, HTMLElement*)) | |
| 140 { | |
| 141 DartDOMData* domData = DartDOMData::current(); | |
| 142 DartCustomElementBinding* binding = domData->customElementBinding(element->c
ustomElementDefinition()); | |
| 143 if (!binding) | |
| 144 return createUpgradeCandidateWrapper(element, createSpecificWrapper); | |
| 145 | |
| 146 Dart_PersistentHandle customType = binding->customType(); | |
| 147 ASSERT(!Dart_IsError(customType)); | |
| 148 | |
| 149 Dart_Handle newWrapper = swapElementWrapper(domData, element, customType, bi
nding->nativeClassId()); | |
| 150 if (Dart_IsError(newWrapper)) { | |
| 151 // When the upgrade fails the failed wrapper may have been associated, | |
| 152 // so we need to create a new one and re-associate it. | |
| 153 Dart_Handle fallbackWrapper = createUpgradeCandidateWrapper(element, cre
ateSpecificWrapper); | |
| 154 if (Dart_IsError(fallbackWrapper)) { | |
| 155 // FIXME: We can reach here on a stack overflow. We should cascade t
he exception from here, but that will | |
| 156 // require additional plumbing. We already reported the problem in s
wapElementWrapper so just return null | |
| 157 // here. | |
| 158 return Dart_Null(); | |
| 159 } | |
| 160 | |
| 161 DartDOMWrapper::associateWrapper<DartHTMLElement>(domData, element, fall
backWrapper); | |
| 162 DartDOMWrapper::writeNativePointer(fallbackWrapper, element, binding->na
tiveClassId()); | |
| 163 return fallbackWrapper; | |
| 164 } | |
| 165 return newWrapper; | |
| 166 } | |
| 167 | |
| 168 template<> | |
| 169 Dart_Handle DartCustomElementWrapper<HTMLElement>::changeElementWrapper(Dart_Han
dle element, Dart_Handle wrapperType) | |
| 170 { | |
| 171 DartDOMData* domData = DartDOMData::current(); | |
| 172 | |
| 173 intptr_t nativeClassId = reinterpret_cast<intptr_t>(DartDOMWrapper::readNati
vePointer(element, DartDOMWrapper::NativeTypeIndex)); | |
| 174 Dart_Handle exception = 0; | |
| 175 HTMLElement* nativeElement = DartDOMWrapper::unwrapDartWrapper<DartHTMLEleme
nt>(domData, element, exception); | |
| 176 if (exception) { | |
| 177 return exception; | |
| 178 } | |
| 179 return swapElementWrapper(domData, nativeElement, wrapperType, nativeClassId
); | |
| 180 } | |
| 181 | |
| 182 template<> | |
| 183 Dart_Handle DartCustomElementWrapper<SVGElement>::changeElementWrapper(Dart_Hand
le element, Dart_Handle wrapperType) | |
| 184 { | |
| 185 // TODO: support SVG elements. | |
| 186 ASSERT(FALSE); | |
| 187 return Dart_Handle(); | |
| 188 } | |
| 189 | |
| 190 template<> | |
| 191 Dart_Handle DartCustomElementWrapper<SVGElement>::upgradeDartWrapper(SVGElement*
element, Dart_Handle (*createSpecificWrapper)(DartDOMData*, SVGElement*)) | |
| 192 { | |
| 193 // TODO: support SVG elements. | |
| 194 ASSERT(FALSE); | |
| 195 return Dart_Handle(); | |
| 196 } | |
| 197 | |
| 198 template<> | |
| 199 void DartCustomElementWrapper<HTMLElement>::initializeCustomElement(Dart_Handle
wrapper, Dart_Handle& exception) | |
| 200 { | |
| 201 DartDOMData* domData = DartDOMData::current(); | |
| 202 HTMLElement* element = DartDOMWrapper::unwrapDartWrapper<DartHTMLElement>(do
mData, wrapper, exception); | |
| 203 if (exception) { | |
| 204 return; | |
| 205 } | |
| 206 if (!element) { | |
| 207 exception = Dart_NewStringFromCString("created called outside of custom
element creation."); | |
| 208 return; | |
| 209 } | |
| 210 | |
| 211 DartDOMWrapper::associateWrapper<DartHTMLElement>(domData, element, wrapper)
; | |
| 212 } | |
| 213 | |
| 214 template<> | |
| 215 void DartCustomElementWrapper<SVGElement>::initializeCustomElement(Dart_Handle w
rapper, Dart_Handle& exception) | |
| 216 { | |
| 217 // TODO: support SVG elements. | |
| 218 ASSERT(FALSE); | |
| 219 } | |
| 220 | |
| 221 template | |
| 222 class DartCustomElementWrapper<HTMLElement>; | |
| 223 | |
| 224 template | |
| 225 class DartCustomElementWrapper<SVGElement>; | |
| 226 | |
| 227 } // namespace blink | |
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