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cef/libcef/renderer/v8_impl.cc

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// Copyright (c) 2013 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that
// can be found in the LICENSE file.
// MSVC++ requires this to be set before any other includes to get M_PI.
// Otherwise there will be compile errors in wtf/MathExtras.h.
#define _USE_MATH_DEFINES
#include <map>
#include <string>
#include "base/command_line.h"
#include "base/compiler_specific.h"
#include "config.h"
MSVC_PUSH_WARNING_LEVEL(0);
#include "core/frame/Frame.h"
#include "core/frame/LocalFrame.h"
#include "core/workers/WorkerGlobalScope.h"
#include "bindings/v8/ScriptController.h"
#include "bindings/v8/V8Binding.h"
MSVC_POP_WARNING();
#undef FROM_HERE
#undef LOG
#include "libcef/renderer/v8_impl.h"
#include "libcef/common/cef_switches.h"
#include "libcef/common/content_client.h"
#include "libcef/common/task_runner_impl.h"
#include "libcef/common/tracker.h"
#include "libcef/renderer/browser_impl.h"
#include "libcef/renderer/thread_util.h"
#include "libcef/renderer/webkit_glue.h"
#include "base/bind.h"
#include "base/lazy_instance.h"
#include "base/strings/string_number_conversions.h"
#include "base/threading/thread_local.h"
#include "third_party/WebKit/public/web/WebKit.h"
#include "third_party/WebKit/public/web/WebFrame.h"
#include "third_party/WebKit/public/web/WebLocalFrame.h"
#include "third_party/WebKit/public/web/WebScriptController.h"
#include "url/gurl.h"
namespace {
static const char kCefTrackObject[] = "Cef::TrackObject";
static const char kCefContextState[] = "Cef::ContextState";
void MessageListenerCallbackImpl(v8::Handle<v8::Message> message,
v8::Handle<v8::Value> data);
// Manages memory and state information associated with a single Isolate.
class CefV8IsolateManager {
public:
CefV8IsolateManager()
: isolate_(v8::Isolate::GetCurrent()),
task_runner_(CefContentRendererClient::Get()->GetCurrentTaskRunner()),
context_safety_impl_(IMPL_HASH),
message_listener_registered_(false),
worker_id_(0) {
DCHECK(isolate_);
DCHECK(task_runner_.get());
const CommandLine& command_line = *CommandLine::ForCurrentProcess();
if (command_line.HasSwitch(switches::kContextSafetyImplementation)) {
std::string value = command_line.GetSwitchValueASCII(
switches::kContextSafetyImplementation);
int mode;
if (base::StringToInt(value, &mode)) {
if (mode < 0)
context_safety_impl_ = IMPL_DISABLED;
else if (mode == 1)
context_safety_impl_ = IMPL_VALUE;
}
}
}
~CefV8IsolateManager() {
DCHECK_EQ(isolate_, v8::Isolate::GetCurrent());
DCHECK(context_map_.empty());
}
scoped_refptr<CefV8ContextState> GetContextState(
v8::Handle<v8::Context> context) {
DCHECK_EQ(isolate_, v8::Isolate::GetCurrent());
DCHECK(context.IsEmpty() || isolate_ == context->GetIsolate());
if (context_safety_impl_ == IMPL_DISABLED)
return scoped_refptr<CefV8ContextState>();
if (context.IsEmpty()) {
if (isolate_->InContext())
context = isolate_->GetCurrentContext();
else
return scoped_refptr<CefV8ContextState>();
}
if (context_safety_impl_ == IMPL_HASH) {
int hash = context->Global()->GetIdentityHash();
ContextMap::const_iterator it = context_map_.find(hash);
if (it != context_map_.end())
return it->second;
scoped_refptr<CefV8ContextState> state = new CefV8ContextState();
context_map_.insert(std::make_pair(hash, state));
return state;
} else {
v8::Handle<v8::String> key =
v8::String::NewFromUtf8(isolate_, kCefContextState);
v8::Handle<v8::Object> object = context->Global();
v8::Handle<v8::Value> value = object->GetHiddenValue(key);
if (!value.IsEmpty()) {
return static_cast<CefV8ContextState*>(
v8::External::Cast(*value)->Value());
}
scoped_refptr<CefV8ContextState> state = new CefV8ContextState();
object->SetHiddenValue(key, v8::External::New(isolate_, state.get()));
// Reference will be released in ReleaseContext.
state->AddRef();
return state;
}
}
void ReleaseContext(v8::Handle<v8::Context> context) {
DCHECK_EQ(isolate_, v8::Isolate::GetCurrent());
DCHECK_EQ(isolate_, context->GetIsolate());
if (context_safety_impl_ == IMPL_DISABLED)
return;
if (context_safety_impl_ == IMPL_HASH) {
int hash = context->Global()->GetIdentityHash();
ContextMap::iterator it = context_map_.find(hash);
if (it != context_map_.end()) {
it->second->Detach();
context_map_.erase(it);
}
} else {
v8::Handle<v8::String> key =
v8::String::NewFromUtf8(isolate_, kCefContextState);
v8::Handle<v8::Object> object = context->Global();
v8::Handle<v8::Value> value = object->GetHiddenValue(key);
if (value.IsEmpty())
return;
scoped_refptr<CefV8ContextState> state =
static_cast<CefV8ContextState*>(v8::External::Cast(*value)->Value());
state->Detach();
object->DeleteHiddenValue(key);
// Match the AddRef in GetContextState.
state->Release();
}
}
void AddGlobalTrackObject(CefTrackNode* object) {
DCHECK_EQ(isolate_, v8::Isolate::GetCurrent());
global_manager_.Add(object);
}
void DeleteGlobalTrackObject(CefTrackNode* object) {
DCHECK_EQ(isolate_, v8::Isolate::GetCurrent());
global_manager_.Delete(object);
}
void SetUncaughtExceptionStackSize(int stack_size) {
if (stack_size <= 0)
return;
if (!message_listener_registered_) {
v8::V8::AddMessageListener(&MessageListenerCallbackImpl);
message_listener_registered_ = true;
}
v8::V8::SetCaptureStackTraceForUncaughtExceptions(true,
stack_size, v8::StackTrace::kDetailed);
}
void SetWorkerAttributes(int worker_id, const GURL& worker_url) {
worker_id_ = worker_id;
worker_url_ = worker_url;
}
v8::Isolate* isolate() const { return isolate_; }
scoped_refptr<base::SequencedTaskRunner> task_runner() const {
return task_runner_;
}
int worker_id() const {
return worker_id_;
}
const GURL& worker_url() const {
return worker_url_;
}
private:
v8::Isolate* isolate_;
scoped_refptr<base::SequencedTaskRunner> task_runner_;
enum ContextSafetyImpl {
IMPL_DISABLED,
IMPL_HASH,
IMPL_VALUE,
};
ContextSafetyImpl context_safety_impl_;
// Used with IMPL_HASH.
typedef std::map<int, scoped_refptr<CefV8ContextState> > ContextMap;
ContextMap context_map_;
// Used for globally tracked objects that are not associated with a particular
// context.
CefTrackManager global_manager_;
// True if the message listener has been registered.
bool message_listener_registered_;
// Attributes associated with WebWorker threads.
int worker_id_;
GURL worker_url_;
};
// Chromium uses the default Isolate for the main render process thread and a
// new Isolate for each WebWorker thread. Continue this pattern by tracking
// Isolate information on a per-thread basis. This implementation will need to
// be re-worked (perhaps using a map keyed on v8::Isolate::GetCurrent()) if
// in the future Chromium begins using the same Isolate across multiple threads.
class CefV8StateManager {
public:
CefV8StateManager() {
}
void CreateIsolateManager() {
DCHECK(!current_tls_.Get());
current_tls_.Set(new CefV8IsolateManager());
}
void DestroyIsolateManager() {
DCHECK(current_tls_.Get());
delete current_tls_.Get();
current_tls_.Set(NULL);
}
CefV8IsolateManager* GetIsolateManager() {
CefV8IsolateManager* manager = current_tls_.Get();
DCHECK(manager);
return manager;
}
private:
base::ThreadLocalPointer<CefV8IsolateManager> current_tls_;
};
base::LazyInstance<CefV8StateManager> g_v8_state = LAZY_INSTANCE_INITIALIZER;
CefV8IsolateManager* GetIsolateManager() {
return g_v8_state.Pointer()->GetIsolateManager();
}
class V8TrackObject : public CefTrackNode {
public:
explicit V8TrackObject(v8::Isolate* isolate)
: isolate_(isolate),
external_memory_(0) {
DCHECK(isolate_);
isolate_->AdjustAmountOfExternalAllocatedMemory(
static_cast<int>(sizeof(V8TrackObject)));
}
~V8TrackObject() {
isolate_->AdjustAmountOfExternalAllocatedMemory(
-static_cast<int>(sizeof(V8TrackObject)) - external_memory_);
}
inline int GetExternallyAllocatedMemory() {
return external_memory_;
}
int AdjustExternallyAllocatedMemory(int change_in_bytes) {
int new_value = external_memory_ + change_in_bytes;
if (new_value < 0) {
NOTREACHED() << "External memory usage cannot be less than 0 bytes";
change_in_bytes = -(external_memory_);
new_value = 0;
}
if (change_in_bytes != 0)
isolate_->AdjustAmountOfExternalAllocatedMemory(change_in_bytes);
external_memory_ = new_value;
return new_value;
}
inline void SetAccessor(CefRefPtr<CefV8Accessor> accessor) {
accessor_ = accessor;
}
inline CefRefPtr<CefV8Accessor> GetAccessor() {
return accessor_;
}
inline void SetHandler(CefRefPtr<CefV8Handler> handler) {
handler_ = handler;
}
inline CefRefPtr<CefV8Handler> GetHandler() {
return handler_;
}
inline void SetUserData(CefRefPtr<CefBase> user_data) {
user_data_ = user_data;
}
inline CefRefPtr<CefBase> GetUserData() {
return user_data_;
}
// Attach this track object to the specified V8 object.
void AttachTo(v8::Handle<v8::Object> object) {
object->SetHiddenValue(v8::String::NewFromUtf8(isolate_, kCefTrackObject),
v8::External::New(isolate_, this));
}
// Retrieve the track object for the specified V8 object.
static V8TrackObject* Unwrap(v8::Isolate* isolate,
v8::Handle<v8::Object> object) {
DCHECK(isolate);
v8::Local<v8::Value> value =
object->GetHiddenValue(
v8::String::NewFromUtf8(isolate, kCefTrackObject));
if (!value.IsEmpty())
return static_cast<V8TrackObject*>(v8::External::Cast(*value)->Value());
return NULL;
}
private:
v8::Isolate* isolate_;
CefRefPtr<CefV8Accessor> accessor_;
CefRefPtr<CefV8Handler> handler_;
CefRefPtr<CefBase> user_data_;
int external_memory_;
};
class V8TrackString : public CefTrackNode {
public:
explicit V8TrackString(const std::string& str) : string_(str) {}
const char* GetString() { return string_.c_str(); }
private:
std::string string_;
};
// Manages the life span of a CefTrackNode associated with a persistent Object
// or Function.
class CefV8MakeWeakParam {
public:
CefV8MakeWeakParam(v8::Isolate* isolate,
scoped_refptr<CefV8ContextState> context_state,
CefTrackNode* object)
: isolate_(isolate),
context_state_(context_state),
object_(object) {
DCHECK(isolate_);
DCHECK(object_);
isolate_->AdjustAmountOfExternalAllocatedMemory(
static_cast<int>(sizeof(CefV8MakeWeakParam)));
if (context_state_.get()) {
// |object_| will be deleted when:
// A. The associated context is released, or
// B. TrackDestructor is called for the weak handle.
DCHECK(context_state_->IsValid());
context_state_->AddTrackObject(object_);
} else {
// |object_| will be deleted when:
// A. The process shuts down, or
// B. TrackDestructor is called for the weak handle.
GetIsolateManager()->AddGlobalTrackObject(object_);
}
}
~CefV8MakeWeakParam() {
if (context_state_.get()) {
// If the associated context is still valid then delete |object_|.
// Otherwise, |object_| will already have been deleted.
if (context_state_->IsValid())
context_state_->DeleteTrackObject(object_);
} else {
GetIsolateManager()->DeleteGlobalTrackObject(object_);
}
isolate_->AdjustAmountOfExternalAllocatedMemory(
-static_cast<int>(sizeof(CefV8MakeWeakParam)));
}
private:
v8::Isolate* isolate_;
scoped_refptr<CefV8ContextState> context_state_;
CefTrackNode* object_;
};
// Callback for weak persistent reference destruction.
void TrackDestructor(
const v8::WeakCallbackData<v8::Value, CefV8MakeWeakParam>& data) {
if (data.GetParameter())
delete data.GetParameter();
}
// Convert a CefString to a V8::String.
v8::Handle<v8::String> GetV8String(v8::Isolate* isolate,
const CefString& str) {
#if defined(CEF_STRING_TYPE_UTF16)
// Already a UTF16 string.
return v8::String::NewFromTwoByte(
isolate,
reinterpret_cast<uint16_t*>(
const_cast<CefString::char_type*>(str.c_str())),
v8::String::kNormalString,
str.length());
#elif defined(CEF_STRING_TYPE_UTF8)
// Already a UTF8 string.
return v8::String::NewFromUtf8(isolate,
const_cast<char*>(str.c_str()),
v8::String::kNormalString,
str.length());
#else
// Convert the string to UTF8.
std::string tmpStr = str;
return v8::String::NewFromUtf8(isolate,
tmpStr.c_str(),
v8::String::kNormalString,
tmpStr.length());
#endif
}
#if defined(CEF_STRING_TYPE_UTF16)
void v8impl_string_dtor(char16* str) {
delete [] str;
}
#elif defined(CEF_STRING_TYPE_UTF8)
void v8impl_string_dtor(char* str) {
delete [] str;
}
#endif
// Convert a v8::String to CefString.
void GetCefString(v8::Handle<v8::String> str, CefString& out) {
if (str.IsEmpty())
return;
#if defined(CEF_STRING_TYPE_WIDE)
// Allocate enough space for a worst-case conversion.
int len = str->Utf8Length();
if (len == 0)
return;
char* buf = new char[len + 1];
str->WriteUtf8(buf, len + 1);
// Perform conversion to the wide type.
cef_string_t* retws = out.GetWritableStruct();
cef_string_utf8_to_wide(buf, len, retws);
delete [] buf;
#else // !defined(CEF_STRING_TYPE_WIDE)
#if defined(CEF_STRING_TYPE_UTF16)
int len = str->Length();
if (len == 0)
return;
char16* buf = new char16[len + 1];
str->Write(reinterpret_cast<uint16_t*>(buf), 0, len + 1);
#else
// Allocate enough space for a worst-case conversion.
int len = str->Utf8Length();
if (len == 0)
return;
char* buf = new char[len + 1];
str->WriteUtf8(buf, len + 1);
#endif
// Don't perform an extra string copy.
out.clear();
cef_string_t* retws = out.GetWritableStruct();
retws->str = buf;
retws->length = len;
retws->dtor = v8impl_string_dtor;
#endif // !defined(CEF_STRING_TYPE_WIDE)
}
// V8 function callback.
void FunctionCallbackImpl(const v8::FunctionCallbackInfo<v8::Value>& info) {
v8::Isolate* isolate = info.GetIsolate();
CefV8Handler* handler =
static_cast<CefV8Handler*>(v8::External::Cast(*info.Data())->Value());
CefV8ValueList params;
for (int i = 0; i < info.Length(); i++)
params.push_back(new CefV8ValueImpl(isolate, info[i]));
CefString func_name;
GetCefString(v8::Handle<v8::String>::Cast(info.Callee()->GetName()),
func_name);
CefRefPtr<CefV8Value> object = new CefV8ValueImpl(isolate, info.This());
CefRefPtr<CefV8Value> retval;
CefString exception;
if (handler->Execute(func_name, object, params, retval, exception)) {
if (!exception.empty()) {
info.GetReturnValue().Set(
isolate->ThrowException(
v8::Exception::Error(GetV8String(isolate, exception))));
return;
} else {
CefV8ValueImpl* rv = static_cast<CefV8ValueImpl*>(retval.get());
if (rv && rv->IsValid()) {
info.GetReturnValue().Set(rv->GetV8Value(true));
return;
}
}
}
info.GetReturnValue().SetUndefined();
}
// V8 Accessor callbacks
void AccessorGetterCallbackImpl(
v8::Local<v8::String> property,
const v8::PropertyCallbackInfo<v8::Value>& info) {
v8::Isolate* isolate = info.GetIsolate();
v8::Handle<v8::Object> obj = info.This();
CefRefPtr<CefV8Accessor> accessorPtr;
V8TrackObject* tracker = V8TrackObject::Unwrap(isolate, obj);
if (tracker)
accessorPtr = tracker->GetAccessor();
if (accessorPtr.get()) {
CefRefPtr<CefV8Value> retval;
CefRefPtr<CefV8Value> object = new CefV8ValueImpl(isolate, obj);
CefString name, exception;
GetCefString(property, name);
if (accessorPtr->Get(name, object, retval, exception)) {
if (!exception.empty()) {
info.GetReturnValue().Set(
isolate->ThrowException(
v8::Exception::Error(GetV8String(isolate, exception))));
return;
} else {
CefV8ValueImpl* rv = static_cast<CefV8ValueImpl*>(retval.get());
if (rv && rv->IsValid()) {
info.GetReturnValue().Set(rv->GetV8Value(true));
return;
}
}
}
}
return info.GetReturnValue().SetUndefined();
}
void AccessorSetterCallbackImpl(
v8::Local<v8::String> property,
v8::Local<v8::Value> value,
const v8::PropertyCallbackInfo<void>& info) {
v8::Isolate* isolate = info.GetIsolate();
v8::Handle<v8::Object> obj = info.This();
CefRefPtr<CefV8Accessor> accessorPtr;
V8TrackObject* tracker = V8TrackObject::Unwrap(isolate, obj);
if (tracker)
accessorPtr = tracker->GetAccessor();
if (accessorPtr.get()) {
CefRefPtr<CefV8Value> object = new CefV8ValueImpl(isolate, obj);
CefRefPtr<CefV8Value> cefValue = new CefV8ValueImpl(isolate, value);
CefString name, exception;
GetCefString(property, name);
accessorPtr->Set(name, object, cefValue, exception);
if (!exception.empty()) {
isolate->ThrowException(
v8::Exception::Error(GetV8String(isolate, exception)));
return;
}
}
}
v8::Local<v8::Value> CallV8Function(v8::Handle<v8::Context> context,
v8::Handle<v8::Function> function,
v8::Handle<v8::Object> receiver,
int argc,
v8::Handle<v8::Value> args[],
v8::Isolate* isolate) {
v8::Local<v8::Value> func_rv;
// Execute the function call using the ScriptController so that inspector
// instrumentation works.
if (CEF_CURRENTLY_ON_RT()) {
RefPtr<WebCore::LocalFrame> frame = WebCore::toFrameIfNotDetached(context);
DCHECK(frame);
if (frame &&
frame->script().canExecuteScripts(WebCore::AboutToExecuteScript)) {
func_rv = frame->script().callFunction(function, receiver, argc, args);
}
} else {
func_rv = WebCore::ScriptController::callFunction(
WebCore::toExecutionContext(context),
function, receiver, argc, args, isolate);
}
return func_rv;
}
// V8 extension registration.
class ExtensionWrapper : public v8::Extension {
public:
ExtensionWrapper(const char* extension_name,
const char* javascript_code,
CefV8Handler* handler)
: v8::Extension(extension_name, javascript_code), handler_(handler) {
}
virtual v8::Handle<v8::FunctionTemplate> GetNativeFunctionTemplate(
v8::Isolate* isolate,
v8::Handle<v8::String> name) OVERRIDE {
if (!handler_)
return v8::Handle<v8::FunctionTemplate>();
return v8::FunctionTemplate::New(isolate,
FunctionCallbackImpl,
v8::External::New(isolate, handler_));
}
private:
CefV8Handler* handler_;
};
class CefV8ExceptionImpl : public CefV8Exception {
public:
explicit CefV8ExceptionImpl(v8::Handle<v8::Message> message)
: line_number_(0),
start_position_(0),
end_position_(0),
start_column_(0),
end_column_(0) {
if (message.IsEmpty())
return;
GetCefString(message->Get(), message_);
GetCefString(message->GetSourceLine(), source_line_);
if (!message->GetScriptResourceName().IsEmpty())
GetCefString(message->GetScriptResourceName()->ToString(), script_);
line_number_ = message->GetLineNumber();
start_position_ = message->GetStartPosition();
end_position_ = message->GetEndPosition();
start_column_ = message->GetStartColumn();
end_column_ = message->GetEndColumn();
}
virtual CefString GetMessage() OVERRIDE { return message_; }
virtual CefString GetSourceLine() OVERRIDE { return source_line_; }
virtual CefString GetScriptResourceName() OVERRIDE { return script_; }
virtual int GetLineNumber() OVERRIDE { return line_number_; }
virtual int GetStartPosition() OVERRIDE { return start_position_; }
virtual int GetEndPosition() OVERRIDE { return end_position_; }
virtual int GetStartColumn() OVERRIDE { return start_column_; }
virtual int GetEndColumn() OVERRIDE { return end_column_; }
protected:
CefString message_;
CefString source_line_;
CefString script_;
int line_number_;
int start_position_;
int end_position_;
int start_column_;
int end_column_;
IMPLEMENT_REFCOUNTING(CefV8ExceptionImpl);
};
void MessageListenerCallbackImpl(v8::Handle<v8::Message> message,
v8::Handle<v8::Value> data) {
CefRefPtr<CefApp> application = CefContentClient::Get()->application();
if (!application.get())
return;
CefRefPtr<CefRenderProcessHandler> handler =
application->GetRenderProcessHandler();
if (!handler.get())
return;
v8::Isolate* isolate = GetIsolateManager()->isolate();
CefRefPtr<CefV8Context> context = CefV8Context::GetCurrentContext();
v8::Handle<v8::StackTrace> v8Stack = message->GetStackTrace();
DCHECK(!v8Stack.IsEmpty());
CefRefPtr<CefV8StackTrace> stackTrace =
new CefV8StackTraceImpl(isolate, v8Stack);
CefRefPtr<CefV8Exception> exception = new CefV8ExceptionImpl(message);
if (CEF_CURRENTLY_ON_RT()) {
handler->OnUncaughtException(context->GetBrowser(), context->GetFrame(),
context, exception, stackTrace);
}
}
} // namespace
// Global functions.
void CefV8IsolateCreated() {
g_v8_state.Pointer()->CreateIsolateManager();
}
void CefV8IsolateDestroyed() {
g_v8_state.Pointer()->DestroyIsolateManager();
}
void CefV8ReleaseContext(v8::Handle<v8::Context> context) {
GetIsolateManager()->ReleaseContext(context);
}
void CefV8SetUncaughtExceptionStackSize(int stack_size) {
GetIsolateManager()->SetUncaughtExceptionStackSize(stack_size);
}
void CefV8SetWorkerAttributes(int worker_id, const GURL& worker_url) {
GetIsolateManager()->SetWorkerAttributes(worker_id, worker_url);
}
bool CefRegisterExtension(const CefString& extension_name,
const CefString& javascript_code,
CefRefPtr<CefV8Handler> handler) {
// Verify that this method was called on the correct thread.
CEF_REQUIRE_RT_RETURN(false);
CefV8IsolateManager* isolate_manager = GetIsolateManager();
V8TrackString* name = new V8TrackString(extension_name);
isolate_manager->AddGlobalTrackObject(name);
V8TrackString* code = new V8TrackString(javascript_code);
isolate_manager->AddGlobalTrackObject(code);
if (handler) {
// The reference will be released when the process exits.
V8TrackObject* object = new V8TrackObject(isolate_manager->isolate());
object->SetHandler(handler);
isolate_manager->AddGlobalTrackObject(object);
}
ExtensionWrapper* wrapper = new ExtensionWrapper(
name->GetString(),
code->GetString(),
handler.get());
content::RenderThread::Get()->RegisterExtension(wrapper);
return true;
}
// Helper macros
#define CEF_V8_HAS_ISOLATE() (!!GetIsolateManager())
#define CEF_V8_REQUIRE_ISOLATE_RETURN(var) \
if (!CEF_V8_HAS_ISOLATE()) { \
NOTREACHED() << "V8 isolate is not valid"; \
return var; \
}
#define CEF_V8_CURRENTLY_ON_MLT() \
(!handle_.get() || handle_->BelongsToCurrentThread())
#define CEF_V8_REQUIRE_MLT_RETURN(var) \
CEF_V8_REQUIRE_ISOLATE_RETURN(var); \
if (!CEF_V8_CURRENTLY_ON_MLT()) { \
NOTREACHED() << "called on incorrect thread"; \
return var; \
}
#define CEF_V8_HANDLE_IS_VALID() (handle_.get() && handle_->IsValid())
#define CEF_V8_REQUIRE_VALID_HANDLE_RETURN(ret) \
CEF_V8_REQUIRE_MLT_RETURN(ret); \
if (!CEF_V8_HANDLE_IS_VALID()) { \
NOTREACHED() << "V8 handle is not valid"; \
return ret; \
}
#define CEF_V8_IS_VALID() \
(CEF_V8_HAS_ISOLATE() && \
CEF_V8_CURRENTLY_ON_MLT() && \
CEF_V8_HANDLE_IS_VALID())
#define CEF_V8_REQUIRE_OBJECT_RETURN(ret) \
CEF_V8_REQUIRE_VALID_HANDLE_RETURN(ret); \
if (type_ != TYPE_OBJECT) { \
NOTREACHED() << "V8 value is not an object"; \
return ret; \
}
// CefV8HandleBase
CefV8HandleBase::~CefV8HandleBase() {
DCHECK(BelongsToCurrentThread());
}
bool CefV8HandleBase::BelongsToCurrentThread() const {
return task_runner_->RunsTasksOnCurrentThread();
}
CefV8HandleBase::CefV8HandleBase(v8::Isolate* isolate,
v8::Handle<v8::Context> context)
: isolate_(isolate) {
DCHECK(isolate_);
CefV8IsolateManager* manager = GetIsolateManager();
DCHECK(manager);
DCHECK_EQ(isolate_, manager->isolate());
task_runner_ = manager->task_runner();
context_state_ = manager->GetContextState(context);
}
// CefV8Context
// static
CefRefPtr<CefV8Context> CefV8Context::GetCurrentContext() {
CefRefPtr<CefV8Context> context;
CEF_V8_REQUIRE_ISOLATE_RETURN(context);
v8::Isolate* isolate = GetIsolateManager()->isolate();
if (isolate->InContext()) {
v8::HandleScope handle_scope(isolate);
context = new CefV8ContextImpl(isolate, isolate->GetCurrentContext());
}
return context;
}
// static
CefRefPtr<CefV8Context> CefV8Context::GetEnteredContext() {
CefRefPtr<CefV8Context> context;
CEF_V8_REQUIRE_ISOLATE_RETURN(context);
v8::Isolate* isolate = GetIsolateManager()->isolate();
if (isolate->InContext()) {
v8::HandleScope handle_scope(isolate);
context = new CefV8ContextImpl(isolate, isolate->GetEnteredContext());
}
return context;
}
// static
bool CefV8Context::InContext() {
CEF_V8_REQUIRE_ISOLATE_RETURN(false);
v8::Isolate* isolate = GetIsolateManager()->isolate();
return isolate->InContext();
}
// CefV8ContextImpl
CefV8ContextImpl::CefV8ContextImpl(v8::Isolate* isolate,
v8::Handle<v8::Context> context)
: handle_(new Handle(isolate, context, context))
#ifndef NDEBUG
, enter_count_(0)
#endif
{ // NOLINT(whitespace/braces)
}
CefV8ContextImpl::~CefV8ContextImpl() {
DLOG_ASSERT(0 == enter_count_);
}
CefRefPtr<CefTaskRunner> CefV8ContextImpl::GetTaskRunner() {
return new CefTaskRunnerImpl(handle_->task_runner());
}
bool CefV8ContextImpl::IsValid() {
return CEF_V8_IS_VALID();
}
CefRefPtr<CefBrowser> CefV8ContextImpl::GetBrowser() {
CefRefPtr<CefBrowser> browser;
CEF_V8_REQUIRE_VALID_HANDLE_RETURN(browser);
// Return NULL for WebWorkers.
if (!CEF_CURRENTLY_ON_RT())
return browser;
blink::WebFrame* webframe = GetWebFrame();
if (webframe)
browser = CefBrowserImpl::GetBrowserForMainFrame(webframe->top());
return browser;
}
CefRefPtr<CefFrame> CefV8ContextImpl::GetFrame() {
CefRefPtr<CefFrame> frame;
CEF_V8_REQUIRE_VALID_HANDLE_RETURN(frame);
// Return NULL for WebWorkers.
if (!CEF_CURRENTLY_ON_RT())
return frame;
blink::WebFrame* webframe = GetWebFrame();
if (webframe) {
CefRefPtr<CefBrowserImpl> browser =
CefBrowserImpl::GetBrowserForMainFrame(webframe->top());
frame = browser->GetFrame(webkit_glue::GetIdentifier(webframe));
}
return frame;
}
CefRefPtr<CefV8Value> CefV8ContextImpl::GetGlobal() {
CEF_V8_REQUIRE_VALID_HANDLE_RETURN(NULL);
v8::Isolate* isolate = handle_->isolate();
v8::HandleScope handle_scope(isolate);
v8::Handle<v8::Context> context = GetV8Context();
v8::Context::Scope context_scope(context);
return new CefV8ValueImpl(isolate, context->Global());
}
bool CefV8ContextImpl::Enter() {
CEF_V8_REQUIRE_VALID_HANDLE_RETURN(false);
v8::Isolate* isolate = handle_->isolate();
v8::HandleScope handle_scope(isolate);
WebCore::V8PerIsolateData::from(isolate)->incrementRecursionLevel();
handle_->GetNewV8Handle()->Enter();
#ifndef NDEBUG
++enter_count_;
#endif
return true;
}
bool CefV8ContextImpl::Exit() {
CEF_V8_REQUIRE_VALID_HANDLE_RETURN(false);
v8::Isolate* isolate = handle_->isolate();
v8::HandleScope handle_scope(handle_->isolate());
DLOG_ASSERT(enter_count_ > 0);
handle_->GetNewV8Handle()->Exit();
WebCore::V8PerIsolateData::from(isolate)->decrementRecursionLevel();
#ifndef NDEBUG
--enter_count_;
#endif
return true;
}
bool CefV8ContextImpl::IsSame(CefRefPtr<CefV8Context> that) {
CEF_V8_REQUIRE_VALID_HANDLE_RETURN(false);
CefV8ContextImpl* impl = static_cast<CefV8ContextImpl*>(that.get());
if (!impl || !impl->IsValid())
return false;
return (handle_->GetPersistentV8Handle() ==
impl->handle_->GetPersistentV8Handle());
}
bool CefV8ContextImpl::Eval(const CefString& code,
CefRefPtr<CefV8Value>& retval,
CefRefPtr<CefV8Exception>& exception) {
CEF_V8_REQUIRE_VALID_HANDLE_RETURN(false);
if (code.empty()) {
NOTREACHED() << "invalid input parameter";
return false;
}
v8::Isolate* isolate = handle_->isolate();
v8::HandleScope handle_scope(isolate);
v8::Local<v8::Context> context = GetV8Context();
v8::Context::Scope context_scope(context);
v8::Local<v8::Object> obj = context->Global();
// Retrieve the eval function.
v8::Local<v8::Value> val = obj->Get(v8::String::NewFromUtf8(isolate, "eval"));
if (val.IsEmpty() || !val->IsFunction())
return false;
v8::Local<v8::Function> func = v8::Local<v8::Function>::Cast(val);
v8::Handle<v8::Value> code_val = GetV8String(isolate, code);
v8::TryCatch try_catch;
try_catch.SetVerbose(true);
retval = NULL;
exception = NULL;
v8::Local<v8::Value> func_rv =
CallV8Function(context, func, obj, 1, &code_val, handle_->isolate());
if (try_catch.HasCaught()) {
exception = new CefV8ExceptionImpl(try_catch.Message());
return false;
} else if (!func_rv.IsEmpty()) {
retval = new CefV8ValueImpl(isolate, func_rv);
}
return true;
}
v8::Handle<v8::Context> CefV8ContextImpl::GetV8Context() {
return handle_->GetNewV8Handle();
}
blink::WebFrame* CefV8ContextImpl::GetWebFrame() {
CEF_REQUIRE_RT();
v8::HandleScope handle_scope(handle_->isolate());
v8::Context::Scope context_scope(GetV8Context());
return blink::WebLocalFrame::frameForCurrentContext();
}
// CefV8ValueImpl::Handle
CefV8ValueImpl::Handle::~Handle() {
// Persist the handle (call MakeWeak) if:
// A. The handle has been passed into a V8 function or used as a return value
// from a V8 callback, and
// B. The associated context, if any, is still valid.
if (should_persist_ && (!context_state_.get() || context_state_->IsValid())) {
handle_.SetWeak(
(tracker_ ?
new CefV8MakeWeakParam(isolate(), context_state_, tracker_) : NULL),
TrackDestructor);
} else if (tracker_) {
delete tracker_;
}
// Always call Reset() on a persistent handle to avoid the
// CHECK(state() != NEAR_DEATH) in V8's PostGarbageCollectionProcessing.
handle_.Reset();
tracker_ = NULL;
}
// CefV8Value
// static
CefRefPtr<CefV8Value> CefV8Value::CreateUndefined() {
CEF_V8_REQUIRE_ISOLATE_RETURN(NULL);
v8::Isolate* isolate = GetIsolateManager()->isolate();
CefRefPtr<CefV8ValueImpl> impl = new CefV8ValueImpl(isolate);
impl->InitUndefined();
return impl.get();
}
// static
CefRefPtr<CefV8Value> CefV8Value::CreateNull() {
CEF_V8_REQUIRE_ISOLATE_RETURN(NULL);
v8::Isolate* isolate = GetIsolateManager()->isolate();
CefRefPtr<CefV8ValueImpl> impl = new CefV8ValueImpl(isolate);
impl->InitNull();
return impl.get();
}
// static
CefRefPtr<CefV8Value> CefV8Value::CreateBool(bool value) {
CEF_V8_REQUIRE_ISOLATE_RETURN(NULL);
v8::Isolate* isolate = GetIsolateManager()->isolate();
CefRefPtr<CefV8ValueImpl> impl = new CefV8ValueImpl(isolate);
impl->InitBool(value);
return impl.get();
}
// static
CefRefPtr<CefV8Value> CefV8Value::CreateInt(int32 value) {
CEF_V8_REQUIRE_ISOLATE_RETURN(NULL);
v8::Isolate* isolate = GetIsolateManager()->isolate();
CefRefPtr<CefV8ValueImpl> impl = new CefV8ValueImpl(isolate);
impl->InitInt(value);
return impl.get();
}
// static
CefRefPtr<CefV8Value> CefV8Value::CreateUInt(uint32 value) {
CEF_V8_REQUIRE_ISOLATE_RETURN(NULL);
v8::Isolate* isolate = GetIsolateManager()->isolate();
CefRefPtr<CefV8ValueImpl> impl = new CefV8ValueImpl(isolate);
impl->InitUInt(value);
return impl.get();
}
// static
CefRefPtr<CefV8Value> CefV8Value::CreateDouble(double value) {
CEF_V8_REQUIRE_ISOLATE_RETURN(NULL);
v8::Isolate* isolate = GetIsolateManager()->isolate();
CefRefPtr<CefV8ValueImpl> impl = new CefV8ValueImpl(isolate);
impl->InitDouble(value);
return impl.get();
}
// static
CefRefPtr<CefV8Value> CefV8Value::CreateDate(const CefTime& value) {
CEF_V8_REQUIRE_ISOLATE_RETURN(NULL);
v8::Isolate* isolate = GetIsolateManager()->isolate();
CefRefPtr<CefV8ValueImpl> impl = new CefV8ValueImpl(isolate);
impl->InitDate(value);
return impl.get();
}
// static
CefRefPtr<CefV8Value> CefV8Value::CreateString(const CefString& value) {
CEF_V8_REQUIRE_ISOLATE_RETURN(NULL);
v8::Isolate* isolate = GetIsolateManager()->isolate();
CefRefPtr<CefV8ValueImpl> impl = new CefV8ValueImpl(isolate);
CefString str(value);
impl->InitString(str);
return impl.get();
}
// static
CefRefPtr<CefV8Value> CefV8Value::CreateObject(
CefRefPtr<CefV8Accessor> accessor) {
CEF_V8_REQUIRE_ISOLATE_RETURN(NULL);
v8::Isolate* isolate = GetIsolateManager()->isolate();
v8::HandleScope handle_scope(isolate);
v8::Local<v8::Context> context = isolate->GetCurrentContext();
if (context.IsEmpty()) {
NOTREACHED() << "not currently in a V8 context";
return NULL;
}
// Create the new V8 object.
v8::Local<v8::Object> obj = v8::Object::New(isolate);
// Create a tracker object that will cause the user data and/or accessor
// reference to be released when the V8 object is destroyed.
V8TrackObject* tracker = new V8TrackObject(isolate);
tracker->SetAccessor(accessor);
// Attach the tracker object.
tracker->AttachTo(obj);
CefRefPtr<CefV8ValueImpl> impl = new CefV8ValueImpl(isolate);
impl->InitObject(obj, tracker);
return impl.get();
}
// static
CefRefPtr<CefV8Value> CefV8Value::CreateArray(int length) {
CEF_V8_REQUIRE_ISOLATE_RETURN(NULL);
v8::Isolate* isolate = GetIsolateManager()->isolate();
v8::HandleScope handle_scope(isolate);
v8::Local<v8::Context> context = isolate->GetCurrentContext();
if (context.IsEmpty()) {
NOTREACHED() << "not currently in a V8 context";
return NULL;
}
// Create a tracker object that will cause the user data reference to be
// released when the V8 object is destroyed.
V8TrackObject* tracker = new V8TrackObject(isolate);
// Create the new V8 array.
v8::Local<v8::Array> arr = v8::Array::New(isolate, length);
// Attach the tracker object.
tracker->AttachTo(arr);
CefRefPtr<CefV8ValueImpl> impl = new CefV8ValueImpl(isolate);
impl->InitObject(arr, tracker);
return impl.get();
}
// static
CefRefPtr<CefV8Value> CefV8Value::CreateFunction(
const CefString& name,
CefRefPtr<CefV8Handler> handler) {
CEF_V8_REQUIRE_ISOLATE_RETURN(NULL);
if (!handler.get()) {
NOTREACHED() << "invalid parameter";
return NULL;
}
v8::Isolate* isolate = GetIsolateManager()->isolate();
v8::HandleScope handle_scope(isolate);
v8::Local<v8::Context> context = isolate->GetCurrentContext();
if (context.IsEmpty()) {
NOTREACHED() << "not currently in a V8 context";
return NULL;
}
// Create a new V8 function template.
v8::Local<v8::FunctionTemplate> tmpl = v8::FunctionTemplate::New(isolate);
v8::Local<v8::Value> data = v8::External::New(isolate, handler.get());
// Set the function handler callback.
tmpl->SetCallHandler(FunctionCallbackImpl, data);
// Retrieve the function object and set the name.
v8::Local<v8::Function> func = tmpl->GetFunction();
if (func.IsEmpty()) {
NOTREACHED() << "failed to create V8 function";
return NULL;
}
func->SetName(GetV8String(isolate, name));
// Create a tracker object that will cause the user data and/or handler
// reference to be released when the V8 object is destroyed.
V8TrackObject* tracker = new V8TrackObject(isolate);
tracker->SetHandler(handler);
// Attach the tracker object.
tracker->AttachTo(func);
// Create the CefV8ValueImpl and provide a tracker object that will cause
// the handler reference to be released when the V8 object is destroyed.
CefRefPtr<CefV8ValueImpl> impl = new CefV8ValueImpl(isolate);
impl->InitObject(func, tracker);
return impl.get();
}
// CefV8ValueImpl
CefV8ValueImpl::CefV8ValueImpl(v8::Isolate* isolate)
: isolate_(isolate),
type_(TYPE_INVALID),
rethrow_exceptions_(false) {
DCHECK(isolate_);
}
CefV8ValueImpl::CefV8ValueImpl(v8::Isolate* isolate,
v8::Handle<v8::Value> value)
: isolate_(isolate),
type_(TYPE_INVALID),
rethrow_exceptions_(false) {
DCHECK(isolate_);
InitFromV8Value(value);
}
CefV8ValueImpl::~CefV8ValueImpl() {
if (type_ == TYPE_STRING)
cef_string_clear(&string_value_);
}
void CefV8ValueImpl::InitFromV8Value(v8::Handle<v8::Value> value) {
if (value->IsUndefined()) {
InitUndefined();
} else if (value->IsNull()) {
InitNull();
} else if (value->IsTrue()) {
InitBool(true);
} else if (value->IsFalse()) {
InitBool(false);
} else if (value->IsBoolean()) {
InitBool(value->ToBoolean()->Value());
} else if (value->IsInt32()) {
InitInt(value->ToInt32()->Value());
} else if (value->IsUint32()) {
InitUInt(value->ToUint32()->Value());
} else if (value->IsNumber()) {
InitDouble(value->ToNumber()->Value());
} else if (value->IsDate()) {
// Convert from milliseconds to seconds.
InitDate(CefTime(value->ToNumber()->Value() / 1000));
} else if (value->IsString()) {
CefString rv;
GetCefString(value->ToString(), rv);
InitString(rv);
} else if (value->IsObject()) {
InitObject(value, NULL);
}
}
void CefV8ValueImpl::InitUndefined() {
DCHECK_EQ(type_, TYPE_INVALID);
type_ = TYPE_UNDEFINED;
}
void CefV8ValueImpl::InitNull() {
DCHECK_EQ(type_, TYPE_INVALID);
type_ = TYPE_NULL;
}
void CefV8ValueImpl::InitBool(bool value) {
DCHECK_EQ(type_, TYPE_INVALID);
type_ = TYPE_BOOL;
bool_value_ = value;
}
void CefV8ValueImpl::InitInt(int32 value) {
DCHECK_EQ(type_, TYPE_INVALID);
type_ = TYPE_INT;
int_value_ = value;
}
void CefV8ValueImpl::InitUInt(uint32 value) {
DCHECK_EQ(type_, TYPE_INVALID);
type_ = TYPE_UINT;
uint_value_ = value;
}
void CefV8ValueImpl::InitDouble(double value) {
DCHECK_EQ(type_, TYPE_INVALID);
type_ = TYPE_DOUBLE;
double_value_ = value;
}
void CefV8ValueImpl::InitDate(const CefTime& value) {
DCHECK_EQ(type_, TYPE_INVALID);
type_ = TYPE_DATE;
date_value_ = value;
}
void CefV8ValueImpl::InitString(CefString& value) {
DCHECK_EQ(type_, TYPE_INVALID);
type_ = TYPE_STRING;
// Take ownership of the underling string value.
const cef_string_t* str = value.GetStruct();
if (str) {
string_value_ = *str;
cef_string_t* writable_struct = value.GetWritableStruct();
writable_struct->str = NULL;
writable_struct->length = 0;
} else {
string_value_.str = NULL;
string_value_.length = 0;
}
}
void CefV8ValueImpl::InitObject(v8::Handle<v8::Value> value, CefTrackNode* tracker) {
DCHECK_EQ(type_, TYPE_INVALID);
type_ = TYPE_OBJECT;
handle_ = new Handle(isolate_, v8::Handle<v8::Context>(), value, tracker);
}
v8::Handle<v8::Value> CefV8ValueImpl::GetV8Value(bool should_persist) {
switch (type_) {
case TYPE_UNDEFINED:
return v8::Undefined(isolate_);
case TYPE_NULL:
return v8::Null(isolate_);
case TYPE_BOOL:
return v8::Boolean::New(isolate_, bool_value_);
case TYPE_INT:
return v8::Int32::New(isolate_, int_value_);
case TYPE_UINT:
return v8::Uint32::New(isolate_, uint_value_);
case TYPE_DOUBLE:
return v8::Number::New(isolate_, double_value_);
case TYPE_DATE:
// Convert from seconds to milliseconds.
return v8::Date::New(isolate_, CefTime(date_value_).GetDoubleT() * 1000);
case TYPE_STRING:
return GetV8String(isolate_, CefString(&string_value_));
case TYPE_OBJECT:
return handle_->GetNewV8Handle(should_persist);
default:
break;
}
NOTREACHED() << "Invalid type for CefV8ValueImpl";
return v8::Handle<v8::Value>();
}
bool CefV8ValueImpl::IsValid() {
if (!CEF_V8_HAS_ISOLATE() || type_ == TYPE_INVALID ||
(type_ == TYPE_OBJECT &&
(!handle_->BelongsToCurrentThread() || !handle_->IsValid()))) {
return false;
}
return true;
}
bool CefV8ValueImpl::IsUndefined() {
CEF_V8_REQUIRE_ISOLATE_RETURN(false);
return (type_ == TYPE_UNDEFINED);
}
bool CefV8ValueImpl::IsNull() {
CEF_V8_REQUIRE_ISOLATE_RETURN(false);
return (type_ == TYPE_NULL);
}
bool CefV8ValueImpl::IsBool() {
CEF_V8_REQUIRE_ISOLATE_RETURN(false);
return (type_ == TYPE_BOOL);
}
bool CefV8ValueImpl::IsInt() {
CEF_V8_REQUIRE_ISOLATE_RETURN(false);
return (type_ == TYPE_INT || type_ == TYPE_UINT);
}
bool CefV8ValueImpl::IsUInt() {
CEF_V8_REQUIRE_ISOLATE_RETURN(false);
return (type_ == TYPE_INT || type_ == TYPE_UINT);
}
bool CefV8ValueImpl::IsDouble() {
CEF_V8_REQUIRE_ISOLATE_RETURN(false);
return (type_ == TYPE_INT || type_ == TYPE_UINT || type_ == TYPE_DOUBLE);
}
bool CefV8ValueImpl::IsDate() {
CEF_V8_REQUIRE_ISOLATE_RETURN(false);
return (type_ == TYPE_DATE);
}
bool CefV8ValueImpl::IsString() {
CEF_V8_REQUIRE_ISOLATE_RETURN(false);
return (type_ == TYPE_STRING);
}
bool CefV8ValueImpl::IsObject() {
CEF_V8_REQUIRE_ISOLATE_RETURN(false);
return (type_ == TYPE_OBJECT);
}
bool CefV8ValueImpl::IsArray() {
CEF_V8_REQUIRE_MLT_RETURN(false);
if (type_ == TYPE_OBJECT) {
v8::HandleScope handle_scope(handle_->isolate());
return handle_->GetNewV8Handle(false)->IsArray();
} else {
return false;
}
}
bool CefV8ValueImpl::IsFunction() {
CEF_V8_REQUIRE_MLT_RETURN(false);
if (type_ == TYPE_OBJECT) {
v8::HandleScope handle_scope(handle_->isolate());
return handle_->GetNewV8Handle(false)->IsFunction();
} else {
return false;
}
}
bool CefV8ValueImpl::IsSame(CefRefPtr<CefV8Value> that) {
CEF_V8_REQUIRE_MLT_RETURN(false);
CefV8ValueImpl* thatValue = static_cast<CefV8ValueImpl*>(that.get());
if (!thatValue || !thatValue->IsValid() || type_ != thatValue->type_)
return false;
switch (type_) {
case TYPE_UNDEFINED:
case TYPE_NULL:
return true;
case TYPE_BOOL:
return (bool_value_ == thatValue->bool_value_);
case TYPE_INT:
return (int_value_ == thatValue->int_value_);
case TYPE_UINT:
return (uint_value_ == thatValue->uint_value_);
case TYPE_DOUBLE:
return (double_value_ == thatValue->double_value_);
case TYPE_DATE:
return (CefTime(date_value_).GetTimeT() ==
CefTime(thatValue->date_value_).GetTimeT());
case TYPE_STRING:
return (CefString(&string_value_) ==
CefString(&thatValue->string_value_));
case TYPE_OBJECT: {
return (handle_->GetPersistentV8Handle() ==
thatValue->handle_->GetPersistentV8Handle());
}
default:
break;
}
return false;
}
bool CefV8ValueImpl::GetBoolValue() {
CEF_V8_REQUIRE_ISOLATE_RETURN(false);
if (type_ == TYPE_BOOL)
return bool_value_;
return false;
}
int32 CefV8ValueImpl::GetIntValue() {
CEF_V8_REQUIRE_ISOLATE_RETURN(0);
if (type_ == TYPE_INT || type_ == TYPE_UINT)
return int_value_;
return 0;
}
uint32 CefV8ValueImpl::GetUIntValue() {
CEF_V8_REQUIRE_ISOLATE_RETURN(0);
if (type_ == TYPE_INT || type_ == TYPE_UINT)
return uint_value_;
return 0;
}
double CefV8ValueImpl::GetDoubleValue() {
CEF_V8_REQUIRE_ISOLATE_RETURN(0.);
if (type_ == TYPE_DOUBLE)
return double_value_;
else if (type_ == TYPE_INT)
return int_value_;
else if (type_ == TYPE_UINT)
return uint_value_;
return 0.;
}
CefTime CefV8ValueImpl::GetDateValue() {
CEF_V8_REQUIRE_ISOLATE_RETURN(CefTime(0.));
if (type_ == TYPE_DATE)
return date_value_;
return CefTime(0.);
}
CefString CefV8ValueImpl::GetStringValue() {
CefString rv;
CEF_V8_REQUIRE_ISOLATE_RETURN(rv);
if (type_ == TYPE_STRING)
rv = CefString(&string_value_);
return rv;
}
bool CefV8ValueImpl::IsUserCreated() {
CEF_V8_REQUIRE_OBJECT_RETURN(false);
v8::Isolate* isolate = handle_->isolate();
v8::HandleScope handle_scope(isolate);
v8::Handle<v8::Value> value = handle_->GetNewV8Handle(false);
v8::Handle<v8::Object> obj = value->ToObject();
V8TrackObject* tracker = V8TrackObject::Unwrap(isolate, obj);
return (tracker != NULL);
}
bool CefV8ValueImpl::HasException() {
CEF_V8_REQUIRE_OBJECT_RETURN(false);
return (last_exception_.get() != NULL);
}
CefRefPtr<CefV8Exception> CefV8ValueImpl::GetException() {
CEF_V8_REQUIRE_OBJECT_RETURN(NULL);
return last_exception_;
}
bool CefV8ValueImpl::ClearException() {
CEF_V8_REQUIRE_OBJECT_RETURN(false);
last_exception_ = NULL;
return true;
}
bool CefV8ValueImpl::WillRethrowExceptions() {
CEF_V8_REQUIRE_OBJECT_RETURN(false);
return rethrow_exceptions_;
}
bool CefV8ValueImpl::SetRethrowExceptions(bool rethrow) {
CEF_V8_REQUIRE_OBJECT_RETURN(false);
rethrow_exceptions_ = rethrow;
return true;
}
bool CefV8ValueImpl::HasValue(const CefString& key) {
CEF_V8_REQUIRE_OBJECT_RETURN(false);
v8::Isolate* isolate = handle_->isolate();
v8::HandleScope handle_scope(isolate);
v8::Handle<v8::Value> value = handle_->GetNewV8Handle(false);
v8::Handle<v8::Object> obj = value->ToObject();
return obj->Has(GetV8String(isolate, key));
}
bool CefV8ValueImpl::HasValue(int index) {
CEF_V8_REQUIRE_OBJECT_RETURN(false);
if (index < 0) {
NOTREACHED() << "invalid input parameter";
return false;
}
v8::HandleScope handle_scope(handle_->isolate());
v8::Handle<v8::Value> value = handle_->GetNewV8Handle(false);
v8::Handle<v8::Object> obj = value->ToObject();
return obj->Has(index);
}
bool CefV8ValueImpl::DeleteValue(const CefString& key) {
CEF_V8_REQUIRE_OBJECT_RETURN(false);
v8::Isolate* isolate = handle_->isolate();
v8::HandleScope handle_scope(isolate);
v8::Handle<v8::Value> value = handle_->GetNewV8Handle(false);
v8::Handle<v8::Object> obj = value->ToObject();
v8::TryCatch try_catch;
try_catch.SetVerbose(true);
bool del = obj->Delete(GetV8String(isolate, key));
return (!HasCaught(try_catch) && del);
}
bool CefV8ValueImpl::DeleteValue(int index) {
CEF_V8_REQUIRE_OBJECT_RETURN(false);
if (index < 0) {
NOTREACHED() << "invalid input parameter";
return false;
}
v8::HandleScope handle_scope(handle_->isolate());
v8::Handle<v8::Value> value = handle_->GetNewV8Handle(false);
v8::Handle<v8::Object> obj = value->ToObject();
v8::TryCatch try_catch;
try_catch.SetVerbose(true);
bool del = obj->Delete(index);
return (!HasCaught(try_catch) && del);
}
CefRefPtr<CefV8Value> CefV8ValueImpl::GetValue(const CefString& key) {
CEF_V8_REQUIRE_OBJECT_RETURN(NULL);
v8::Isolate* isolate = handle_->isolate();
v8::HandleScope handle_scope(isolate);
v8::Handle<v8::Value> value = handle_->GetNewV8Handle(false);
v8::Handle<v8::Object> obj = value->ToObject();
v8::TryCatch try_catch;
try_catch.SetVerbose(true);
v8::Local<v8::Value> ret_value = obj->Get(GetV8String(isolate, key));
if (!HasCaught(try_catch) && !ret_value.IsEmpty())
return new CefV8ValueImpl(isolate, ret_value);
return NULL;
}
CefRefPtr<CefV8Value> CefV8ValueImpl::GetValue(int index) {
CEF_V8_REQUIRE_OBJECT_RETURN(NULL);
if (index < 0) {
NOTREACHED() << "invalid input parameter";
return NULL;
}
v8::Isolate* isolate = handle_->isolate();
v8::HandleScope handle_scope(isolate);
v8::Handle<v8::Value> value = handle_->GetNewV8Handle(false);
v8::Handle<v8::Object> obj = value->ToObject();
v8::TryCatch try_catch;
try_catch.SetVerbose(true);
v8::Local<v8::Value> ret_value = obj->Get(v8::Number::New(isolate, index));
if (!HasCaught(try_catch) && !ret_value.IsEmpty())
return new CefV8ValueImpl(isolate, ret_value);
return NULL;
}
bool CefV8ValueImpl::SetValue(const CefString& key,
CefRefPtr<CefV8Value> value,
PropertyAttribute attribute) {
CEF_V8_REQUIRE_OBJECT_RETURN(false);
CefV8ValueImpl* impl = static_cast<CefV8ValueImpl*>(value.get());
if (impl && impl->IsValid()) {
v8::Isolate* isolate = handle_->isolate();
v8::HandleScope handle_scope(isolate);
v8::Handle<v8::Value> value = handle_->GetNewV8Handle(false);
v8::Handle<v8::Object> obj = value->ToObject();
v8::TryCatch try_catch;
try_catch.SetVerbose(true);
bool set = obj->Set(GetV8String(isolate, key), impl->GetV8Value(true),
static_cast<v8::PropertyAttribute>(attribute));
return (!HasCaught(try_catch) && set);
} else {
NOTREACHED() << "invalid input parameter";
return false;
}
}
bool CefV8ValueImpl::SetValue(int index, CefRefPtr<CefV8Value> value) {
CEF_V8_REQUIRE_OBJECT_RETURN(false);
if (index < 0) {
NOTREACHED() << "invalid input parameter";
return false;
}
CefV8ValueImpl* impl = static_cast<CefV8ValueImpl*>(value.get());
if (impl && impl->IsValid()) {
v8::HandleScope handle_scope(handle_->isolate());
v8::Handle<v8::Value> value = handle_->GetNewV8Handle(false);
v8::Handle<v8::Object> obj = value->ToObject();
v8::TryCatch try_catch;
try_catch.SetVerbose(true);
bool set = obj->Set(index, impl->GetV8Value(true));
return (!HasCaught(try_catch) && set);
} else {
NOTREACHED() << "invalid input parameter";
return false;
}
}
bool CefV8ValueImpl::SetValue(const CefString& key, AccessControl settings,
PropertyAttribute attribute) {
CEF_V8_REQUIRE_OBJECT_RETURN(false);
v8::Isolate* isolate = handle_->isolate();
v8::HandleScope handle_scope(isolate);
v8::Handle<v8::Value> value = handle_->GetNewV8Handle(false);
v8::Handle<v8::Object> obj = value->ToObject();
CefRefPtr<CefV8Accessor> accessorPtr;
V8TrackObject* tracker = V8TrackObject::Unwrap(isolate, obj);
if (tracker)
accessorPtr = tracker->GetAccessor();
// Verify that an accessor exists for this object.
if (!accessorPtr.get())
return false;
v8::AccessorGetterCallback getter = AccessorGetterCallbackImpl;
v8::AccessorSetterCallback setter =
(attribute & V8_PROPERTY_ATTRIBUTE_READONLY) ?
NULL : AccessorSetterCallbackImpl;
v8::TryCatch try_catch;
try_catch.SetVerbose(true);
bool set = obj->SetAccessor(GetV8String(isolate, key), getter, setter, obj,
static_cast<v8::AccessControl>(settings),
static_cast<v8::PropertyAttribute>(attribute));
return (!HasCaught(try_catch) && set);
}
bool CefV8ValueImpl::GetKeys(std::vector<CefString>& keys) {
CEF_V8_REQUIRE_OBJECT_RETURN(false);
v8::Isolate* isolate = handle_->isolate();
v8::HandleScope handle_scope(isolate);
v8::Handle<v8::Value> value = handle_->GetNewV8Handle(false);
v8::Handle<v8::Object> obj = value->ToObject();
v8::Local<v8::Array> arr_keys = obj->GetPropertyNames();
uint32_t len = arr_keys->Length();
for (uint32_t i = 0; i < len; ++i) {
v8::Local<v8::Value> value = arr_keys->Get(v8::Integer::New(isolate, i));
CefString str;
GetCefString(value->ToString(), str);
keys.push_back(str);
}
return true;
}
bool CefV8ValueImpl::SetUserData(CefRefPtr<CefBase> user_data) {
CEF_V8_REQUIRE_OBJECT_RETURN(false);
v8::Isolate* isolate = handle_->isolate();
v8::HandleScope handle_scope(isolate);
v8::Handle<v8::Value> value = handle_->GetNewV8Handle(false);
v8::Handle<v8::Object> obj = value->ToObject();
V8TrackObject* tracker = V8TrackObject::Unwrap(isolate, obj);
if (tracker) {
tracker->SetUserData(user_data);
return true;
}
return false;
}
CefRefPtr<CefBase> CefV8ValueImpl::GetUserData() {
CEF_V8_REQUIRE_OBJECT_RETURN(NULL);
v8::Isolate* isolate = handle_->isolate();
v8::HandleScope handle_scope(isolate);
v8::Handle<v8::Value> value = handle_->GetNewV8Handle(false);
v8::Handle<v8::Object> obj = value->ToObject();
V8TrackObject* tracker = V8TrackObject::Unwrap(isolate, obj);
if (tracker)
return tracker->GetUserData();
return NULL;
}
int CefV8ValueImpl::GetExternallyAllocatedMemory() {
CEF_V8_REQUIRE_OBJECT_RETURN(0);
v8::Isolate* isolate = handle_->isolate();
v8::HandleScope handle_scope(isolate);
v8::Handle<v8::Value> value = handle_->GetNewV8Handle(false);
v8::Handle<v8::Object> obj = value->ToObject();
V8TrackObject* tracker = V8TrackObject::Unwrap(isolate, obj);
if (tracker)
return tracker->GetExternallyAllocatedMemory();
return 0;
}
int CefV8ValueImpl::AdjustExternallyAllocatedMemory(int change_in_bytes) {
CEF_V8_REQUIRE_OBJECT_RETURN(0);
v8::Isolate* isolate = handle_->isolate();
v8::HandleScope handle_scope(isolate);
v8::Handle<v8::Value> value = handle_->GetNewV8Handle(false);
v8::Handle<v8::Object> obj = value->ToObject();
V8TrackObject* tracker = V8TrackObject::Unwrap(isolate, obj);
if (tracker)
return tracker->AdjustExternallyAllocatedMemory(change_in_bytes);
return 0;
}
int CefV8ValueImpl::GetArrayLength() {
CEF_V8_REQUIRE_OBJECT_RETURN(0);
v8::HandleScope handle_scope(handle_->isolate());
v8::Handle<v8::Value> value = handle_->GetNewV8Handle(false);
if (!value->IsArray()) {
NOTREACHED() << "V8 value is not an array";
return 0;
}
v8::Handle<v8::Object> obj = value->ToObject();
v8::Local<v8::Array> arr = v8::Handle<v8::Array>::Cast(obj);
return arr->Length();
}
CefString CefV8ValueImpl::GetFunctionName() {
CefString rv;
CEF_V8_REQUIRE_OBJECT_RETURN(rv);
v8::HandleScope handle_scope(handle_->isolate());
v8::Handle<v8::Value> value = handle_->GetNewV8Handle(false);
if (!value->IsFunction()) {
NOTREACHED() << "V8 value is not a function";
return rv;
}
v8::Handle<v8::Object> obj = value->ToObject();
v8::Handle<v8::Function> func = v8::Handle<v8::Function>::Cast(obj);
GetCefString(v8::Handle<v8::String>::Cast(func->GetName()), rv);
return rv;
}
CefRefPtr<CefV8Handler> CefV8ValueImpl::GetFunctionHandler() {
CEF_V8_REQUIRE_OBJECT_RETURN(NULL);
v8::Isolate* isolate = handle_->isolate();
v8::HandleScope handle_scope(isolate);
v8::Handle<v8::Value> value = handle_->GetNewV8Handle(false);
if (!value->IsFunction()) {
NOTREACHED() << "V8 value is not a function";
return 0;
}
v8::Handle<v8::Object> obj = value->ToObject();
V8TrackObject* tracker = V8TrackObject::Unwrap(isolate, obj);
if (tracker)
return tracker->GetHandler();
return NULL;
}
CefRefPtr<CefV8Value> CefV8ValueImpl::ExecuteFunction(
CefRefPtr<CefV8Value> object,
const CefV8ValueList& arguments) {
// An empty context value defaults to the current context.
CefRefPtr<CefV8Context> context;
return ExecuteFunctionWithContext(context, object, arguments);
}
CefRefPtr<CefV8Value> CefV8ValueImpl::ExecuteFunctionWithContext(
CefRefPtr<CefV8Context> context,
CefRefPtr<CefV8Value> object,
const CefV8ValueList& arguments) {
CEF_V8_REQUIRE_OBJECT_RETURN(NULL);
v8::Isolate* isolate = handle_->isolate();
v8::HandleScope handle_scope(isolate);
v8::Handle<v8::Value> value = handle_->GetNewV8Handle(false);
if (!value->IsFunction()) {
NOTREACHED() << "V8 value is not a function";
return 0;
}
if (context.get() && !context->IsValid()) {
NOTREACHED() << "invalid V8 context parameter";
return NULL;
}
if (object.get() && (!object->IsValid() || !object->IsObject())) {
NOTREACHED() << "invalid V8 object parameter";
return NULL;
}
int argc = arguments.size();
if (argc > 0) {
for (int i = 0; i < argc; ++i) {
if (!arguments[i].get() || !arguments[i]->IsValid()) {
NOTREACHED() << "invalid V8 arguments parameter";
return NULL;
}
}
}
v8::Local<v8::Context> context_local;
if (context.get()) {
CefV8ContextImpl* context_impl =
static_cast<CefV8ContextImpl*>(context.get());
context_local = context_impl->GetV8Context();
} else {
context_local = isolate->GetCurrentContext();
}
v8::Context::Scope context_scope(context_local);
v8::Handle<v8::Object> obj = value->ToObject();
v8::Handle<v8::Function> func = v8::Handle<v8::Function>::Cast(obj);
v8::Handle<v8::Object> recv;
// Default to the global object if no object was provided.
if (object.get()) {
CefV8ValueImpl* recv_impl = static_cast<CefV8ValueImpl*>(object.get());
recv = v8::Handle<v8::Object>::Cast(recv_impl->GetV8Value(true));
} else {
recv = context_local->Global();
}
v8::Handle<v8::Value> *argv = NULL;
if (argc > 0) {
argv = new v8::Handle<v8::Value>[argc];
for (int i = 0; i < argc; ++i) {
argv[i] =
static_cast<CefV8ValueImpl*>(arguments[i].get())->GetV8Value(true);
}
}
CefRefPtr<CefV8Value> retval;
{
v8::TryCatch try_catch;
try_catch.SetVerbose(true);
v8::Local<v8::Value> func_rv =
CallV8Function(context_local, func, recv, argc, argv,
handle_->isolate());
if (!HasCaught(try_catch) && !func_rv.IsEmpty())
retval = new CefV8ValueImpl(isolate, func_rv);
}
if (argv)
delete [] argv;
return retval;
}
bool CefV8ValueImpl::HasCaught(v8::TryCatch& try_catch) {
if (try_catch.HasCaught()) {
last_exception_ = new CefV8ExceptionImpl(try_catch.Message());
if (rethrow_exceptions_)
try_catch.ReThrow();
return true;
} else {
if (last_exception_.get())
last_exception_ = NULL;
return false;
}
}
// CefV8StackTrace
// static
CefRefPtr<CefV8StackTrace> CefV8StackTrace::GetCurrent(int frame_limit) {
CEF_V8_REQUIRE_ISOLATE_RETURN(NULL);
v8::Isolate* isolate = GetIsolateManager()->isolate();
v8::HandleScope handle_scope(isolate);
v8::Handle<v8::StackTrace> stackTrace =
v8::StackTrace::CurrentStackTrace(
isolate, frame_limit, v8::StackTrace::kDetailed);
if (stackTrace.IsEmpty())
return NULL;
return new CefV8StackTraceImpl(isolate, stackTrace);
}
// CefV8StackTraceImpl
CefV8StackTraceImpl::CefV8StackTraceImpl(
v8::Isolate* isolate,
v8::Handle<v8::StackTrace> handle) {
int frame_count = handle->GetFrameCount();
if (frame_count > 0) {
frames_.reserve(frame_count);
for (int i = 0; i < frame_count; ++i)
frames_.push_back(new CefV8StackFrameImpl(isolate, handle->GetFrame(i)));
}
}
CefV8StackTraceImpl::~CefV8StackTraceImpl() {
}
bool CefV8StackTraceImpl::IsValid() {
return true;
}
int CefV8StackTraceImpl::GetFrameCount() {
return frames_.size();
}
CefRefPtr<CefV8StackFrame> CefV8StackTraceImpl::GetFrame(int index) {
if (index < 0 || index >= static_cast<int>(frames_.size()))
return NULL;
return frames_[index];
}
// CefV8StackFrameImpl
CefV8StackFrameImpl::CefV8StackFrameImpl(
v8::Isolate* isolate,
v8::Handle<v8::StackFrame> handle)
: line_number_(0),
column_(0),
is_eval_(false),
is_constructor_(false) {
if (handle.IsEmpty())
return;
GetCefString(v8::Handle<v8::String>::Cast(handle->GetScriptName()),
script_name_);
GetCefString(
v8::Handle<v8::String>::Cast(handle->GetScriptNameOrSourceURL()),
script_name_or_source_url_);
GetCefString(v8::Handle<v8::String>::Cast(handle->GetFunctionName()),
function_name_);
line_number_ = handle->GetLineNumber();
column_ = handle->GetColumn();
is_eval_ = handle->IsEval();
is_constructor_ = handle->IsConstructor();
}
CefV8StackFrameImpl::~CefV8StackFrameImpl() {
}
bool CefV8StackFrameImpl::IsValid() {
return true;
}
CefString CefV8StackFrameImpl::GetScriptName() {
return script_name_;
}
CefString CefV8StackFrameImpl::GetScriptNameOrSourceURL() {
return script_name_or_source_url_;
}
CefString CefV8StackFrameImpl::GetFunctionName() {
return function_name_;
}
int CefV8StackFrameImpl::GetLineNumber() {
return line_number_;
}
int CefV8StackFrameImpl::GetColumn() {
return column_;
}
bool CefV8StackFrameImpl::IsEval() {
return is_eval_;
}
bool CefV8StackFrameImpl::IsConstructor() {
return is_constructor_;
}
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