10bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch/* 20bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * Copyright (C) 2009 Google Inc. All rights reserved. 30bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * 40bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * Redistribution and use in source and binary forms, with or without 50bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * modification, are permitted provided that the following conditions are 60bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * met: 70bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * 80bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * * Redistributions of source code must retain the above copyright 90bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * notice, this list of conditions and the following disclaimer. 100bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * * Redistributions in binary form must reproduce the above 110bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * copyright notice, this list of conditions and the following disclaimer 120bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * in the documentation and/or other materials provided with the 130bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * distribution. 140bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * * Neither the name of Google Inc. nor the names of its 150bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * contributors may be used to endorse or promote products derived from 160bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * this software without specific prior written permission. 170bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * 180bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 190bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 200bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 210bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 220bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 230bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 240bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 250bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 260bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 270bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 280bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 290bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch */ 300bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 310bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch#ifndef V8ConsoleMessage_h 320bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch#define V8ConsoleMessage_h 330bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 340bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch#include "PlatformString.h" 350bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch#include <v8.h> 360bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch#include <wtf/Vector.h> 370bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 380bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdochnamespace WebCore { 390bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 400bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch class Page; 410bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 420bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch // V8ConsoleMessage encapsulates everything needed to 430bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch // log messages originating from JavaScript to the console. 440bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch class V8ConsoleMessage { 450bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch public: 460bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch V8ConsoleMessage(const String& string, const String& sourceID, unsigned lineNumber); 470bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 480bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch // Add a message to the console. May end up calling JavaScript code 490bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch // indirectly through the inspector so only call this function when 500bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch // it is safe to do allocations. 510bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch void dispatchNow(Page*); 520bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 530bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch // Add a message to the console but delay the reporting until it 540bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch // is safe to do so: Either when we leave JavaScript execution or 550bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch // when adding other console messages. The primary purpose of this 560bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch // method is to avoid calling into V8 to handle console messages 570bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch // when the VM is in a state that does not support GCs or allocations. 580bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch // Delayed messages are always reported in the page corresponding 590bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch // to the active context. 600bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch void dispatchLater(); 610bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 620bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch // Process any delayed messages. May end up calling JavaScript code 630bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch // indirectly through the inspector so only call this function when 640bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch // it is safe to do allocations. 650bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch static void processDelayed(); 660bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 670bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch // Convenience class for ensuring that delayed messages in the 680bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch // ConsoleMessageManager are processed quickly. 690bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch class Scope { 700bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch public: 710bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch Scope() { V8ConsoleMessage::processDelayed(); } 720bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch ~Scope() { V8ConsoleMessage::processDelayed(); } 730bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch }; 740bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 750bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch // Callback from V8. 760bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch static void handler(v8::Handle<v8::Message>, v8::Handle<v8::Value> data); 770bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 780bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch private: 790bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch const String m_string; 800bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch const String m_sourceID; 810bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch const unsigned m_lineNumber; 820bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 830bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch // All delayed messages are stored in this vector. If the vector 840bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch // is 0, there are no delayed messages. 850bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch static Vector<V8ConsoleMessage>* m_delayedMessages; 860bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch }; 870bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 880bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch} // namespace WebCore 890bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 900bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch#endif // V8ConsoleMessage_h 91