| /* |
| * Copyright (C) 2009 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: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of Google Inc. 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT |
| * OWNER OR 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 "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() |
| { |
| LOCK_V8; |
| v8::HandleScope handleScope; |
| |
| v8::Handle<v8::Context> context = V8Proxy::context(m_frame.get()); |
| if (context.IsEmpty()) |
| return; |
| |
| v8::Context::Scope scope(context); |
| |
| // Protect the frame until the callback returns. |
| 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; |
| } |
| |
| } // namespace WebCore |