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| 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 "sky/engine/config.h" | |
| 32 #include "sky/engine/bindings/core/v8/V8CustomElementLifecycleCallbacks.h" | |
| 33 | |
| 34 #include "bindings/core/v8/V8Element.h" | |
| 35 #include "sky/engine/bindings/core/v8/CustomElementBinding.h" | |
| 36 #include "sky/engine/bindings/core/v8/DOMDataStore.h" | |
| 37 #include "sky/engine/bindings/core/v8/ScriptController.h" | |
| 38 #include "sky/engine/bindings/core/v8/V8Binding.h" | |
| 39 #include "sky/engine/bindings/core/v8/V8HiddenValue.h" | |
| 40 #include "sky/engine/bindings/core/v8/V8PerContextData.h" | |
| 41 #include "sky/engine/core/dom/ExecutionContext.h" | |
| 42 #include "sky/engine/wtf/PassOwnPtr.h" | |
| 43 | |
| 44 namespace blink { | |
| 45 | |
| 46 #define CALLBACK_LIST(V) \ | |
| 47 V(created, CreatedCallback) \ | |
| 48 V(attached, AttachedCallback) \ | |
| 49 V(detached, DetachedCallback) \ | |
| 50 V(attributeChanged, AttributeChangedCallback) | |
| 51 | |
| 52 PassRefPtr<V8CustomElementLifecycleCallbacks> V8CustomElementLifecycleCallbacks:
:create(ScriptState* scriptState, v8::Handle<v8::Object> prototype, v8::Handle<v
8::Function> created, v8::Handle<v8::Function> attached, v8::Handle<v8::Function
> detached, v8::Handle<v8::Function> attributeChanged) | |
| 53 { | |
| 54 v8::Isolate* isolate = scriptState->isolate(); | |
| 55 // A given object can only be used as a Custom Element prototype | |
| 56 // once; see customElementIsInterfacePrototypeObject | |
| 57 #define SET_HIDDEN_VALUE(Value, Name) \ | |
| 58 ASSERT(V8HiddenValue::getHiddenValue(isolate, prototype, V8HiddenValue::cust
omElement##Name(isolate)).IsEmpty()); \ | |
| 59 if (!Value.IsEmpty()) \ | |
| 60 V8HiddenValue::setHiddenValue(isolate, prototype, V8HiddenValue::customE
lement##Name(isolate), Value); | |
| 61 | |
| 62 CALLBACK_LIST(SET_HIDDEN_VALUE) | |
| 63 #undef SET_HIDDEN_VALUE | |
| 64 | |
| 65 return adoptRef(new V8CustomElementLifecycleCallbacks(scriptState, prototype
, created, attached, detached, attributeChanged)); | |
| 66 } | |
| 67 | |
| 68 static CustomElementLifecycleCallbacks::CallbackType flagSet(v8::Handle<v8::Func
tion> attached, v8::Handle<v8::Function> detached, v8::Handle<v8::Function> attr
ibuteChanged) | |
| 69 { | |
| 70 // V8 Custom Elements always run created to swizzle prototypes. | |
| 71 int flags = CustomElementLifecycleCallbacks::CreatedCallback; | |
| 72 | |
| 73 if (!attached.IsEmpty()) | |
| 74 flags |= CustomElementLifecycleCallbacks::AttachedCallback; | |
| 75 | |
| 76 if (!detached.IsEmpty()) | |
| 77 flags |= CustomElementLifecycleCallbacks::DetachedCallback; | |
| 78 | |
| 79 if (!attributeChanged.IsEmpty()) | |
| 80 flags |= CustomElementLifecycleCallbacks::AttributeChangedCallback; | |
| 81 | |
| 82 return CustomElementLifecycleCallbacks::CallbackType(flags); | |
| 83 } | |
| 84 | |
| 85 template <typename T> | |
| 86 static void weakCallback(const v8::WeakCallbackData<T, ScopedPersistent<T> >& da
ta) | |
| 87 { | |
| 88 data.GetParameter()->clear(); | |
| 89 } | |
| 90 | |
| 91 V8CustomElementLifecycleCallbacks::V8CustomElementLifecycleCallbacks(ScriptState
* scriptState, v8::Handle<v8::Object> prototype, v8::Handle<v8::Function> create
d, v8::Handle<v8::Function> attached, v8::Handle<v8::Function> detached, v8::Han
dle<v8::Function> attributeChanged) | |
| 92 : CustomElementLifecycleCallbacks(flagSet(attached, detached, attributeChang
ed)) | |
| 93 , ContextLifecycleObserver(scriptState->executionContext()) | |
| 94 , m_owner(0) | |
| 95 , m_scriptState(scriptState) | |
| 96 , m_prototype(scriptState->isolate(), prototype) | |
| 97 , m_created(scriptState->isolate(), created) | |
| 98 , m_attached(scriptState->isolate(), attached) | |
| 99 , m_detached(scriptState->isolate(), detached) | |
| 100 , m_attributeChanged(scriptState->isolate(), attributeChanged) | |
| 101 { | |
| 102 m_prototype.setWeak(&m_prototype, weakCallback<v8::Object>); | |
| 103 | |
| 104 #define MAKE_WEAK(Var, _) \ | |
| 105 if (!m_##Var.isEmpty()) \ | |
| 106 m_##Var.setWeak(&m_##Var, weakCallback<v8::Function>); | |
| 107 | |
| 108 CALLBACK_LIST(MAKE_WEAK) | |
| 109 #undef MAKE_WEAK | |
| 110 } | |
| 111 | |
| 112 V8PerContextData* V8CustomElementLifecycleCallbacks::creationContextData() | |
| 113 { | |
| 114 if (!executionContext()) | |
| 115 return 0; | |
| 116 | |
| 117 v8::Handle<v8::Context> context = m_scriptState->context(); | |
| 118 if (context.IsEmpty()) | |
| 119 return 0; | |
| 120 | |
| 121 return V8PerContextData::from(context); | |
| 122 } | |
| 123 | |
| 124 V8CustomElementLifecycleCallbacks::~V8CustomElementLifecycleCallbacks() | |
| 125 { | |
| 126 if (!m_owner) | |
| 127 return; | |
| 128 | |
| 129 v8::HandleScope handleScope(m_scriptState->isolate()); | |
| 130 if (V8PerContextData* perContextData = creationContextData()) | |
| 131 perContextData->clearCustomElementBinding(m_owner); | |
| 132 } | |
| 133 | |
| 134 bool V8CustomElementLifecycleCallbacks::setBinding(CustomElementDefinition* owne
r, PassOwnPtr<CustomElementBinding> binding) | |
| 135 { | |
| 136 ASSERT(!m_owner); | |
| 137 | |
| 138 V8PerContextData* perContextData = creationContextData(); | |
| 139 if (!perContextData) | |
| 140 return false; | |
| 141 | |
| 142 m_owner = owner; | |
| 143 | |
| 144 // Bindings retrieve the prototype when needed from per-context data. | |
| 145 perContextData->addCustomElementBinding(owner, binding); | |
| 146 | |
| 147 return true; | |
| 148 } | |
| 149 | |
| 150 void V8CustomElementLifecycleCallbacks::created(Element* element) | |
| 151 { | |
| 152 // FIXME: callbacks while paused should be queued up for execution to | |
| 153 // continue then be delivered in order rather than delivered immediately. | |
| 154 // Bug 329665 tracks similar behavior for other synchronous events. | |
| 155 if (!executionContext() || executionContext()->activeDOMObjectsAreStopped()) | |
| 156 return; | |
| 157 | |
| 158 element->setCustomElementState(Element::Upgraded); | |
| 159 | |
| 160 if (m_scriptState->contextIsEmpty()) | |
| 161 return; | |
| 162 ScriptState::Scope scope(m_scriptState.get()); | |
| 163 v8::Isolate* isolate = m_scriptState->isolate(); | |
| 164 v8::Handle<v8::Context> context = m_scriptState->context(); | |
| 165 v8::Handle<v8::Object> receiver = m_scriptState->world().domDataStore().get<
V8Element>(element, isolate); | |
| 166 if (!receiver.IsEmpty()) { | |
| 167 // Swizzle the prototype of the existing wrapper. We don't need to | |
| 168 // worry about non-existent wrappers; they will get the right | |
| 169 // prototype when wrapped. | |
| 170 v8::Handle<v8::Object> prototype = m_prototype.newLocal(isolate); | |
| 171 if (prototype.IsEmpty()) | |
| 172 return; | |
| 173 receiver->SetPrototype(prototype); | |
| 174 } | |
| 175 | |
| 176 v8::Handle<v8::Function> callback = m_created.newLocal(isolate); | |
| 177 if (callback.IsEmpty()) | |
| 178 return; | |
| 179 | |
| 180 if (receiver.IsEmpty()) | |
| 181 receiver = toV8(element, context->Global(), isolate).As<v8::Object>(); | |
| 182 | |
| 183 ASSERT(!receiver.IsEmpty()); | |
| 184 | |
| 185 v8::TryCatch exceptionCatcher; | |
| 186 exceptionCatcher.SetVerbose(true); | |
| 187 ScriptController::callFunction(executionContext(), callback, receiver, 0, 0,
isolate); | |
| 188 } | |
| 189 | |
| 190 void V8CustomElementLifecycleCallbacks::attached(Element* element) | |
| 191 { | |
| 192 call(m_attached, element); | |
| 193 } | |
| 194 | |
| 195 void V8CustomElementLifecycleCallbacks::detached(Element* element) | |
| 196 { | |
| 197 call(m_detached, element); | |
| 198 } | |
| 199 | |
| 200 void V8CustomElementLifecycleCallbacks::attributeChanged(Element* element, const
AtomicString& name, const AtomicString& oldValue, const AtomicString& newValue) | |
| 201 { | |
| 202 // FIXME: callbacks while paused should be queued up for execution to | |
| 203 // continue then be delivered in order rather than delivered immediately. | |
| 204 // Bug 329665 tracks similar behavior for other synchronous events. | |
| 205 if (!executionContext() || executionContext()->activeDOMObjectsAreStopped()) | |
| 206 return; | |
| 207 | |
| 208 if (m_scriptState->contextIsEmpty()) | |
| 209 return; | |
| 210 ScriptState::Scope scope(m_scriptState.get()); | |
| 211 v8::Isolate* isolate = m_scriptState->isolate(); | |
| 212 v8::Handle<v8::Context> context = m_scriptState->context(); | |
| 213 v8::Handle<v8::Object> receiver = toV8(element, context->Global(), isolate).
As<v8::Object>(); | |
| 214 ASSERT(!receiver.IsEmpty()); | |
| 215 | |
| 216 v8::Handle<v8::Function> callback = m_attributeChanged.newLocal(isolate); | |
| 217 if (callback.IsEmpty()) | |
| 218 return; | |
| 219 | |
| 220 v8::Handle<v8::Value> argv[] = { | |
| 221 v8String(isolate, name), | |
| 222 oldValue.isNull() ? v8::Handle<v8::Value>(v8::Null(isolate)) : v8::Handl
e<v8::Value>(v8String(isolate, oldValue)), | |
| 223 newValue.isNull() ? v8::Handle<v8::Value>(v8::Null(isolate)) : v8::Handl
e<v8::Value>(v8String(isolate, newValue)) | |
| 224 }; | |
| 225 | |
| 226 v8::TryCatch exceptionCatcher; | |
| 227 exceptionCatcher.SetVerbose(true); | |
| 228 ScriptController::callFunction(executionContext(), callback, receiver, WTF_A
RRAY_LENGTH(argv), argv, isolate); | |
| 229 } | |
| 230 | |
| 231 void V8CustomElementLifecycleCallbacks::call(const ScopedPersistent<v8::Function
>& weakCallback, Element* element) | |
| 232 { | |
| 233 // FIXME: callbacks while paused should be queued up for execution to | |
| 234 // continue then be delivered in order rather than delivered immediately. | |
| 235 // Bug 329665 tracks similar behavior for other synchronous events. | |
| 236 if (!executionContext() || executionContext()->activeDOMObjectsAreStopped()) | |
| 237 return; | |
| 238 | |
| 239 if (m_scriptState->contextIsEmpty()) | |
| 240 return; | |
| 241 ScriptState::Scope scope(m_scriptState.get()); | |
| 242 v8::Isolate* isolate = m_scriptState->isolate(); | |
| 243 v8::Handle<v8::Context> context = m_scriptState->context(); | |
| 244 v8::Handle<v8::Function> callback = weakCallback.newLocal(isolate); | |
| 245 if (callback.IsEmpty()) | |
| 246 return; | |
| 247 | |
| 248 v8::Handle<v8::Object> receiver = toV8(element, context->Global(), isolate).
As<v8::Object>(); | |
| 249 ASSERT(!receiver.IsEmpty()); | |
| 250 | |
| 251 v8::TryCatch exceptionCatcher; | |
| 252 exceptionCatcher.SetVerbose(true); | |
| 253 ScriptController::callFunction(executionContext(), callback, receiver, 0, 0,
isolate); | |
| 254 } | |
| 255 | |
| 256 } // namespace blink | |
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Chromium Code Reviews
Issue 922053002:
Remove unused V8 integration code in Sky (Closed)
Base URL: git@github.com:domokit/mojo.git@master