| /* |
| * Copyright (C) 2012 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: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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. |
| * 3. Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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 "bindings/core/v8/V8DOMConfiguration.h" |
| |
| #include "bindings/core/v8/V8ObjectConstructor.h" |
| #include "platform/TraceEvent.h" |
| |
| namespace blink { |
| |
| void V8DOMConfiguration::installAttributes(v8::Handle<v8::ObjectTemplate> instanceTemplate, v8::Handle<v8::ObjectTemplate> prototype, const AttributeConfiguration* attributes, size_t attributeCount, v8::Isolate* isolate) |
| { |
| for (size_t i = 0; i < attributeCount; ++i) |
| installAttribute(instanceTemplate, prototype, attributes[i], isolate); |
| } |
| |
| void V8DOMConfiguration::installAccessors(v8::Handle<v8::ObjectTemplate> prototype, v8::Handle<v8::Signature> signature, const AccessorConfiguration* accessors, size_t accessorCount, v8::Isolate* isolate) |
| { |
| DOMWrapperWorld& world = DOMWrapperWorld::current(isolate); |
| for (size_t i = 0; i < accessorCount; ++i) { |
| if (accessors[i].exposeConfiguration == OnlyExposedToPrivateScript && !world.isPrivateScriptIsolatedWorld()) |
| continue; |
| |
| v8::FunctionCallback getterCallback = accessors[i].getter; |
| v8::FunctionCallback setterCallback = accessors[i].setter; |
| if (world.isMainWorld()) { |
| if (accessors[i].getterForMainWorld) |
| getterCallback = accessors[i].getterForMainWorld; |
| if (accessors[i].setterForMainWorld) |
| setterCallback = accessors[i].setterForMainWorld; |
| } |
| |
| v8::Local<v8::FunctionTemplate> getter; |
| if (getterCallback) { |
| getter = v8::FunctionTemplate::New(isolate, getterCallback, v8::External::New(isolate, const_cast<WrapperTypeInfo*>(accessors[i].data)), signature, 0); |
| getter->RemovePrototype(); |
| } |
| v8::Local<v8::FunctionTemplate> setter; |
| if (setterCallback) { |
| setter = v8::FunctionTemplate::New(isolate, setterCallback, v8::External::New(isolate, const_cast<WrapperTypeInfo*>(accessors[i].data)), signature, 1); |
| setter->RemovePrototype(); |
| } |
| prototype->SetAccessorProperty(v8AtomicString(isolate, accessors[i].name), getter, setter, accessors[i].attribute, accessors[i].settings); |
| } |
| } |
| |
| // Constant installation |
| // |
| // installConstants() is be used for simple constants. It installs constants |
| // using v8::Template::Set(), which results in a property that is much faster to |
| // access from scripts. |
| // installConstant() is used when some C++ code needs to be executed when the |
| // constant is accessed, e.g. to handle deprecation or measuring usage. The |
| // property appears the same to scripts, but is slower to access. |
| |
| void V8DOMConfiguration::installConstants(v8::Handle<v8::FunctionTemplate> functionDescriptor, v8::Handle<v8::ObjectTemplate> prototype, const ConstantConfiguration* constants, size_t constantCount, v8::Isolate* isolate) |
| { |
| for (size_t i = 0; i < constantCount; ++i) { |
| const ConstantConfiguration* constant = &constants[i]; |
| v8::Handle<v8::String> constantName = v8AtomicString(isolate, constant->name); |
| switch (constant->type) { |
| case ConstantTypeShort: |
| case ConstantTypeLong: |
| case ConstantTypeUnsignedShort: |
| functionDescriptor->Set(constantName, v8::Integer::New(isolate, constant->ivalue), static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete)); |
| prototype->Set(constantName, v8::Integer::New(isolate, constant->ivalue), static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete)); |
| break; |
| case ConstantTypeUnsignedLong: |
| functionDescriptor->Set(constantName, v8::Integer::NewFromUnsigned(isolate, constant->ivalue), static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete)); |
| prototype->Set(constantName, v8::Integer::NewFromUnsigned(isolate, constant->ivalue), static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete)); |
| break; |
| case ConstantTypeFloat: |
| case ConstantTypeDouble: |
| functionDescriptor->Set(constantName, v8::Number::New(isolate, constant->dvalue), static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete)); |
| prototype->Set(constantName, v8::Number::New(isolate, constant->dvalue), static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete)); |
| break; |
| case ConstantTypeString: |
| functionDescriptor->Set(constantName, v8::String::NewFromUtf8(isolate, constant->svalue), static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete)); |
| prototype->Set(constantName, v8::String::NewFromUtf8(isolate, constant->svalue), static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete)); |
| break; |
| default: |
| ASSERT_NOT_REACHED(); |
| } |
| } |
| } |
| |
| void V8DOMConfiguration::installConstant(v8::Handle<v8::FunctionTemplate> functionDescriptor, v8::Handle<v8::ObjectTemplate> prototype, const char* name, v8::AccessorGetterCallback getter, v8::Isolate* isolate) |
| { |
| v8::Handle<v8::String> constantName = v8AtomicString(isolate, name); |
| functionDescriptor->SetNativeDataProperty(constantName, getter, 0, v8::Handle<v8::Value>(), static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete)); |
| prototype->SetNativeDataProperty(constantName, getter, 0, v8::Handle<v8::Value>(), static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete)); |
| } |
| |
| 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) |
| { |
| for (size_t i = 0; i < callbackCount; ++i) |
| installMethod(prototype, signature, attributes, callbacks[i], isolate); |
| } |
| |
| v8::Handle<v8::FunctionTemplate> V8DOMConfiguration::functionTemplateForCallback(v8::Isolate* isolate, v8::Handle<v8::Signature> signature, v8::FunctionCallback callback, int length) |
| { |
| v8::Local<v8::FunctionTemplate> functionTemplate = v8::FunctionTemplate::New(isolate, callback, v8Undefined(), signature, length); |
| functionTemplate->RemovePrototype(); |
| return functionTemplate; |
| } |
| |
| v8::Local<v8::Signature> V8DOMConfiguration::installDOMClassTemplate(v8::Handle<v8::FunctionTemplate> functionDescriptor, const char* interfaceName, v8::Handle<v8::FunctionTemplate> parentClass, size_t fieldCount, |
| const AttributeConfiguration* attributes, size_t attributeCount, |
| const AccessorConfiguration* accessors, size_t accessorCount, |
| const MethodConfiguration* callbacks, size_t callbackCount, |
| v8::Isolate* isolate) |
| { |
| functionDescriptor->SetClassName(v8AtomicString(isolate, interfaceName)); |
| v8::Local<v8::ObjectTemplate> instanceTemplate = functionDescriptor->InstanceTemplate(); |
| instanceTemplate->SetInternalFieldCount(fieldCount); |
| if (!parentClass.IsEmpty()) { |
| functionDescriptor->Inherit(parentClass); |
| // Marks the prototype object as one of native-backed objects. |
| // This is needed since bug 110436 asks WebKit to tell native-initiated prototypes from pure-JS ones. |
| // This doesn't mark kinds "root" classes like Node, where setting this changes prototype chain structure. |
| v8::Local<v8::ObjectTemplate> prototype = functionDescriptor->PrototypeTemplate(); |
| prototype->SetInternalFieldCount(v8PrototypeInternalFieldcount); |
| } |
| |
| v8::Local<v8::Signature> defaultSignature = v8::Signature::New(isolate, functionDescriptor); |
| if (attributeCount) |
| installAttributes(instanceTemplate, functionDescriptor->PrototypeTemplate(), attributes, attributeCount, isolate); |
| if (accessorCount) |
| installAccessors(functionDescriptor->PrototypeTemplate(), defaultSignature, accessors, accessorCount, isolate); |
| if (callbackCount) |
| installMethods(functionDescriptor->PrototypeTemplate(), defaultSignature, static_cast<v8::PropertyAttribute>(v8::DontDelete), callbacks, callbackCount, isolate); |
| return defaultSignature; |
| } |
| |
| v8::Handle<v8::FunctionTemplate> V8DOMConfiguration::domClassTemplate(v8::Isolate* isolate, WrapperTypeInfo* wrapperTypeInfo, void (*configureDOMClassTemplate)(v8::Handle<v8::FunctionTemplate>, v8::Isolate*)) |
| { |
| V8PerIsolateData* data = V8PerIsolateData::from(isolate); |
| v8::Local<v8::FunctionTemplate> result = data->existingDOMTemplate(wrapperTypeInfo); |
| if (!result.IsEmpty()) |
| return result; |
| |
| TRACE_EVENT_SCOPED_SAMPLING_STATE("blink", "BuildDOMTemplate"); |
| result = v8::FunctionTemplate::New(isolate, V8ObjectConstructor::isValidConstructorMode); |
| configureDOMClassTemplate(result, isolate); |
| data->setDOMTemplate(wrapperTypeInfo, result); |
| return result; |
| } |
| |
| } // namespace blink |