mirror of
https://github.com/flutter/flutter.git
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157 lines
8.8 KiB
C++
157 lines
8.8 KiB
C++
/*
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* Copyright (C) 2012 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "bindings/core/v8/V8DOMConfiguration.h"
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#include "bindings/core/v8/V8ObjectConstructor.h"
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#include "platform/TraceEvent.h"
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namespace blink {
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void V8DOMConfiguration::installAttributes(v8::Handle<v8::ObjectTemplate> instanceTemplate, v8::Handle<v8::ObjectTemplate> prototype, const AttributeConfiguration* attributes, size_t attributeCount, v8::Isolate* isolate)
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{
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for (size_t i = 0; i < attributeCount; ++i)
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installAttribute(instanceTemplate, prototype, attributes[i], isolate);
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}
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void V8DOMConfiguration::installAccessors(v8::Handle<v8::ObjectTemplate> prototype, v8::Handle<v8::Signature> signature, const AccessorConfiguration* accessors, size_t accessorCount, v8::Isolate* isolate)
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{
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DOMWrapperWorld& world = DOMWrapperWorld::current(isolate);
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for (size_t i = 0; i < accessorCount; ++i) {
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v8::FunctionCallback getterCallback = accessors[i].getter;
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v8::FunctionCallback setterCallback = accessors[i].setter;
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if (world.isMainWorld()) {
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if (accessors[i].getterForMainWorld)
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getterCallback = accessors[i].getterForMainWorld;
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if (accessors[i].setterForMainWorld)
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setterCallback = accessors[i].setterForMainWorld;
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}
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v8::Local<v8::FunctionTemplate> getter;
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if (getterCallback) {
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getter = v8::FunctionTemplate::New(isolate, getterCallback, v8::External::New(isolate, const_cast<WrapperTypeInfo*>(accessors[i].data)), signature, 0);
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getter->RemovePrototype();
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}
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v8::Local<v8::FunctionTemplate> setter;
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if (setterCallback) {
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setter = v8::FunctionTemplate::New(isolate, setterCallback, v8::External::New(isolate, const_cast<WrapperTypeInfo*>(accessors[i].data)), signature, 1);
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setter->RemovePrototype();
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}
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prototype->SetAccessorProperty(v8AtomicString(isolate, accessors[i].name), getter, setter, accessors[i].attribute, accessors[i].settings);
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}
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}
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void V8DOMConfiguration::installConstants(v8::Handle<v8::FunctionTemplate> functionDescriptor, v8::Handle<v8::ObjectTemplate> prototype, const ConstantConfiguration* constants, size_t constantCount, v8::Isolate* isolate)
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{
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for (size_t i = 0; i < constantCount; ++i) {
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const ConstantConfiguration* constant = &constants[i];
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v8::Handle<v8::String> constantName = v8AtomicString(isolate, constant->name);
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switch (constant->type) {
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case ConstantTypeShort:
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case ConstantTypeLong:
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case ConstantTypeUnsignedShort:
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functionDescriptor->Set(constantName, v8::Integer::New(isolate, constant->ivalue), static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete));
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prototype->Set(constantName, v8::Integer::New(isolate, constant->ivalue), static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete));
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break;
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case ConstantTypeUnsignedLong:
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functionDescriptor->Set(constantName, v8::Integer::NewFromUnsigned(isolate, constant->ivalue), static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete));
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prototype->Set(constantName, v8::Integer::NewFromUnsigned(isolate, constant->ivalue), static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete));
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break;
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case ConstantTypeFloat:
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case ConstantTypeDouble:
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functionDescriptor->Set(constantName, v8::Number::New(isolate, constant->dvalue), static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete));
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prototype->Set(constantName, v8::Number::New(isolate, constant->dvalue), static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete));
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break;
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case ConstantTypeString:
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functionDescriptor->Set(constantName, v8::String::NewFromUtf8(isolate, constant->svalue), static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete));
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prototype->Set(constantName, v8::String::NewFromUtf8(isolate, constant->svalue), static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete));
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break;
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default:
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ASSERT_NOT_REACHED();
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}
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}
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}
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void V8DOMConfiguration::installMethods(v8::Handle<v8::ObjectTemplate> prototype, v8::Handle<v8::Signature> signature, v8::PropertyAttribute attributes, const MethodConfiguration* callbacks, size_t callbackCount, v8::Isolate* isolate)
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{
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for (size_t i = 0; i < callbackCount; ++i)
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installMethod(prototype, signature, attributes, callbacks[i], isolate);
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}
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v8::Handle<v8::FunctionTemplate> V8DOMConfiguration::functionTemplateForCallback(v8::Handle<v8::Signature> signature, v8::FunctionCallback callback, int length, v8::Isolate* isolate)
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{
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v8::Local<v8::FunctionTemplate> functionTemplate = v8::FunctionTemplate::New(isolate, callback, v8Undefined(), signature, length);
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functionTemplate->RemovePrototype();
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return functionTemplate;
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}
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v8::Local<v8::Signature> V8DOMConfiguration::installDOMClassTemplate(v8::Handle<v8::FunctionTemplate> functionDescriptor, const char* interfaceName, v8::Handle<v8::FunctionTemplate> parentClass, size_t fieldCount,
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const AttributeConfiguration* attributes, size_t attributeCount,
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const AccessorConfiguration* accessors, size_t accessorCount,
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const MethodConfiguration* callbacks, size_t callbackCount,
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v8::Isolate* isolate)
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{
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functionDescriptor->SetClassName(v8AtomicString(isolate, interfaceName));
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v8::Local<v8::ObjectTemplate> instanceTemplate = functionDescriptor->InstanceTemplate();
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instanceTemplate->SetInternalFieldCount(fieldCount);
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if (!parentClass.IsEmpty()) {
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functionDescriptor->Inherit(parentClass);
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// Marks the prototype object as one of native-backed objects.
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// This is needed since bug 110436 asks WebKit to tell native-initiated prototypes from pure-JS ones.
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// This doesn't mark kinds "root" classes like Node, where setting this changes prototype chain structure.
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v8::Local<v8::ObjectTemplate> prototype = functionDescriptor->PrototypeTemplate();
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prototype->SetInternalFieldCount(v8PrototypeInternalFieldcount);
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}
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v8::Local<v8::Signature> defaultSignature = v8::Signature::New(isolate, functionDescriptor);
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if (attributeCount)
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installAttributes(instanceTemplate, functionDescriptor->PrototypeTemplate(), attributes, attributeCount, isolate);
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if (accessorCount)
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installAccessors(functionDescriptor->PrototypeTemplate(), defaultSignature, accessors, accessorCount, isolate);
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if (callbackCount)
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installMethods(functionDescriptor->PrototypeTemplate(), defaultSignature, static_cast<v8::PropertyAttribute>(v8::DontDelete), callbacks, callbackCount, isolate);
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return defaultSignature;
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}
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v8::Handle<v8::FunctionTemplate> V8DOMConfiguration::domClassTemplate(v8::Isolate* isolate, WrapperTypeInfo* wrapperTypeInfo, void (*configureDOMClassTemplate)(v8::Handle<v8::FunctionTemplate>, v8::Isolate*))
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{
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V8PerIsolateData* data = V8PerIsolateData::from(isolate);
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v8::Local<v8::FunctionTemplate> result = data->existingDOMTemplate(wrapperTypeInfo);
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if (!result.IsEmpty())
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return result;
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TRACE_EVENT_SCOPED_SAMPLING_STATE("blink", "BuildDOMTemplate");
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result = v8::FunctionTemplate::New(isolate, V8ObjectConstructor::isValidConstructorMode);
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configureDOMClassTemplate(result, isolate);
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data->setDOMTemplate(wrapperTypeInfo, result);
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return result;
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}
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} // namespace blink
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