V8CustomVoidCallback.cpp [plain text]
#include "config.h"
#include "V8Binding.h"
#include "V8CustomVoidCallback.h"
#include "Frame.h"
namespace WebCore {
V8CustomVoidCallback::V8CustomVoidCallback(v8::Local<v8::Object> callback, Frame* frame)
: m_callback(v8::Persistent<v8::Object>::New(callback))
, m_frame(frame)
{
}
V8CustomVoidCallback::~V8CustomVoidCallback()
{
m_callback.Dispose();
}
void V8CustomVoidCallback::handleEvent()
{
v8::HandleScope handleScope;
v8::Handle<v8::Context> context = V8Proxy::context(m_frame.get());
if (context.IsEmpty())
return;
v8::Context::Scope scope(context);
RefPtr<Frame> protector(m_frame);
bool callbackReturnValue = false;
invokeCallback(m_callback, 0, 0, callbackReturnValue);
}
bool invokeCallback(v8::Persistent<v8::Object> callback, int argc, v8::Handle<v8::Value> argv[], bool& callbackReturnValue)
{
v8::TryCatch exceptionCatcher;
v8::Local<v8::Function> callbackFunction;
if (callback->IsFunction()) {
callbackFunction = v8::Local<v8::Function>::New(v8::Persistent<v8::Function>::Cast(callback));
} else if (callback->IsObject()) {
v8::Local<v8::Value> handleEventFunction = callback->Get(v8::String::NewSymbol("handleEvent"));
if (handleEventFunction->IsFunction()) {
callbackFunction = v8::Local<v8::Function>::Cast(handleEventFunction);
}
} else
return false;
if (callbackFunction.IsEmpty())
return false;
v8::Handle<v8::Object> thisObject = v8::Context::GetCurrent()->Global();
V8Proxy* proxy = V8Proxy::retrieve();
ASSERT(proxy);
v8::Handle<v8::Value> result = proxy->callFunction(callbackFunction, thisObject, argc, argv);
callbackReturnValue = !result.IsEmpty() && result->IsBoolean() && result->BooleanValue();
if (exceptionCatcher.HasCaught()) {
v8::Local<v8::Message> message = exceptionCatcher.Message();
proxy->frame()->document()->reportException(toWebCoreString(message->Get()), message->GetLineNumber(), toWebCoreString(message->GetScriptResourceName()));
return true;
}
return false;
}
}