cef/cef1/libcef/v8_impl.h

187 lines
6.1 KiB
C
Raw Normal View History

// Copyright (c) 2012 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.
#ifndef CEF_LIBCEF_V8_IMPL_H_
#define CEF_LIBCEF_V8_IMPL_H_
#pragma once
#include <vector>
#include "include/cef_v8.h"
#include "v8/include/v8.h"
#include "libcef/cef_thread.h"
#include "base/memory/ref_counted.h"
class CefTrackNode;
namespace WebKit {
class WebFrame;
};
// Template for V8 Handle types. This class is used to ensure that V8 objects
// are only released on the UI thread.
template <class v8class>
class CefReleaseV8HandleOnUIThread
: public base::RefCountedThreadSafe<CefReleaseV8HandleOnUIThread<v8class>,
CefThread::DeleteOnUIThread> {
public:
typedef v8::Handle<v8class> handleType;
typedef v8::Persistent<v8class> persistentType;
typedef CefReleaseV8HandleOnUIThread<v8class> superType;
explicit CefReleaseV8HandleOnUIThread(handleType v) {
v8_handle_ = persistentType::New(v);
}
virtual ~CefReleaseV8HandleOnUIThread() {
}
handleType GetHandle() {
return v8_handle_;
}
persistentType v8_handle_;
};
// Special class for a v8::Context to ensure that it is deleted from the UI
// thread.
class CefV8ContextHandle : public CefReleaseV8HandleOnUIThread<v8::Context> {
public:
explicit CefV8ContextHandle(handleType context)
: superType(context) {
}
// Context handles are disposed rather than makeweak.
~CefV8ContextHandle() {
v8_handle_.Dispose();
v8_handle_.Clear();
}
};
class CefV8ContextImpl : public CefV8Context {
public:
explicit CefV8ContextImpl(v8::Handle<v8::Context> context);
virtual ~CefV8ContextImpl();
virtual CefRefPtr<CefBrowser> GetBrowser() OVERRIDE;
virtual CefRefPtr<CefFrame> GetFrame() OVERRIDE;
virtual CefRefPtr<CefV8Value> GetGlobal() OVERRIDE;
virtual bool Enter() OVERRIDE;
virtual bool Exit() OVERRIDE;
virtual bool IsSame(CefRefPtr<CefV8Context> that) OVERRIDE;
virtual bool Eval(const CefString& code,
CefRefPtr<CefV8Value>& retval,
CefRefPtr<CefV8Exception>& exception) OVERRIDE;
v8::Local<v8::Context> GetContext();
WebKit::WebFrame* GetWebFrame();
protected:
scoped_refptr<CefV8ContextHandle> v8_context_;
#ifndef NDEBUG
// Used in debug builds to catch missing Exits in destructor.
int enter_count_;
#endif
IMPLEMENT_REFCOUNTING(CefV8ContextImpl);
};
// Special class for a v8::Value to ensure that it is deleted from the UI
// thread.
class CefV8ValueHandle: public CefReleaseV8HandleOnUIThread<v8::Value> {
public:
CefV8ValueHandle(handleType value, CefTrackNode* tracker)
: superType(value),
tracker_(tracker) {
}
// Destructor implementation is provided in v8_impl.cc.
~CefV8ValueHandle();
CefTrackNode* GetTracker() {
return tracker_;
}
private:
// For Object and Function types, we need to hold on to a reference to their
// internal data or function handler objects that are reference counted.
CefTrackNode* tracker_;
DISALLOW_COPY_AND_ASSIGN(CefV8ValueHandle);
};
class CefV8ValueImpl : public CefV8Value {
public:
CefV8ValueImpl(v8::Handle<v8::Value> value, CefTrackNode* tracker = NULL);
virtual ~CefV8ValueImpl();
virtual bool IsUndefined() OVERRIDE;
virtual bool IsNull() OVERRIDE;
virtual bool IsBool() OVERRIDE;
virtual bool IsInt() OVERRIDE;
virtual bool IsUInt() OVERRIDE;
virtual bool IsDouble() OVERRIDE;
virtual bool IsDate() OVERRIDE;
virtual bool IsString() OVERRIDE;
virtual bool IsObject() OVERRIDE;
virtual bool IsArray() OVERRIDE;
virtual bool IsFunction() OVERRIDE;
virtual bool IsSame(CefRefPtr<CefV8Value> value) OVERRIDE;
virtual bool GetBoolValue() OVERRIDE;
virtual int32 GetIntValue() OVERRIDE;
virtual uint32 GetUIntValue() OVERRIDE;
virtual double GetDoubleValue() OVERRIDE;
virtual CefTime GetDateValue() OVERRIDE;
virtual CefString GetStringValue() OVERRIDE;
virtual bool IsUserCreated() OVERRIDE;
virtual bool HasException() OVERRIDE;
virtual CefRefPtr<CefV8Exception> GetException() OVERRIDE;
virtual bool ClearException() OVERRIDE;
virtual bool WillRethrowExceptions() OVERRIDE;
virtual bool SetRethrowExceptions(bool rethrow) OVERRIDE;
virtual bool HasValue(const CefString& key) OVERRIDE;
virtual bool HasValue(int index) OVERRIDE;
virtual bool DeleteValue(const CefString& key) OVERRIDE;
virtual bool DeleteValue(int index) OVERRIDE;
virtual CefRefPtr<CefV8Value> GetValue(const CefString& key) OVERRIDE;
virtual CefRefPtr<CefV8Value> GetValue(int index) OVERRIDE;
virtual bool SetValue(const CefString& key, CefRefPtr<CefV8Value> value,
PropertyAttribute attribute) OVERRIDE;
virtual bool SetValue(int index, CefRefPtr<CefV8Value> value) OVERRIDE;
virtual bool SetValue(const CefString& key, AccessControl settings,
PropertyAttribute attribute) OVERRIDE;
virtual bool GetKeys(std::vector<CefString>& keys) OVERRIDE;
virtual bool SetUserData(CefRefPtr<CefBase> user_data) OVERRIDE;
virtual CefRefPtr<CefBase> GetUserData() OVERRIDE;
virtual int GetExternallyAllocatedMemory() OVERRIDE;
virtual int AdjustExternallyAllocatedMemory(int change_in_bytes) OVERRIDE;
virtual int GetArrayLength() OVERRIDE;
virtual CefString GetFunctionName() OVERRIDE;
virtual CefRefPtr<CefV8Handler> GetFunctionHandler() OVERRIDE;
virtual CefRefPtr<CefV8Value> ExecuteFunction(
CefRefPtr<CefV8Value> object,
const CefV8ValueList& arguments) OVERRIDE;
virtual CefRefPtr<CefV8Value> ExecuteFunctionWithContext(
CefRefPtr<CefV8Context> context,
CefRefPtr<CefV8Value> object,
const CefV8ValueList& arguments) OVERRIDE;
inline v8::Handle<v8::Value> GetHandle() {
DCHECK(v8_value_.get());
return v8_value_->GetHandle();
}
protected:
// Test for and record any exception.
bool HasCaught(v8::TryCatch& try_catch);
scoped_refptr<CefV8ValueHandle> v8_value_;
CefRefPtr<CefV8Exception> last_exception_;
bool rethrow_exceptions_;
IMPLEMENT_REFCOUNTING(CefV8ValueImpl);
DISALLOW_COPY_AND_ASSIGN(CefV8ValueImpl);
};
#endif // CEF_LIBCEF_V8_IMPL_H_