1/* 2 * Copyright 2010, The Android Open Source Project 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27#include "ScriptCachedFrameData.h" 28 29#include "Frame.h" 30#include "ScriptController.h" 31#include "V8DOMWindow.h" 32 33namespace WebCore { 34 35ScriptCachedFrameData::ScriptCachedFrameData(Frame* frame) 36 : m_domWindow(0) 37{ 38 v8::HandleScope handleScope; 39 // The context can only be the context of the main world. 40 ASSERT(V8Proxy::mainWorldContext(frame) == V8Proxy::context(frame)); 41 m_context.set(V8Proxy::mainWorldContext(frame)); 42 // The context can be 0, e.g. if JS is disabled in the browser. 43 if (m_context.get().IsEmpty()) 44 return; 45 m_global.set(m_context.get()->Global()); 46 m_domWindow = frame->domWindow(); 47} 48 49DOMWindow* ScriptCachedFrameData::domWindow() const 50{ 51 return m_domWindow; 52} 53 54void ScriptCachedFrameData::restore(Frame* frame) 55{ 56 if (m_context.get().IsEmpty()) 57 return; 58 59 v8::HandleScope handleScope; 60 v8::Context::Scope contextScope(m_context.get()); 61 62 m_context.get()->ReattachGlobal(m_global.get()); 63 V8Proxy* proxy = V8Proxy::retrieve(frame); 64 if (proxy) 65 proxy->windowShell()->setContext(m_context.get()); 66} 67 68void ScriptCachedFrameData::clear() 69{ 70 m_context.clear(); 71 m_global.clear(); 72} 73 74} // namespace WebCore 75