1/* 2 * Copyright (C) 2009, 2011 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#include "config.h" 32#include "ScriptState.h" 33 34#include "Frame.h" 35#include "JSDOMWindowBase.h" 36#include "JSWorkerContext.h" 37#include "Node.h" 38#include "Page.h" 39#include "WorkerContext.h" 40#include "WorkerScriptController.h" 41#include <interpreter/CallFrame.h> 42#include <runtime/JSGlobalObject.h> 43 44namespace WebCore { 45 46ScriptStateProtectedPtr::~ScriptStateProtectedPtr() 47{ 48} 49 50ScriptStateProtectedPtr::ScriptStateProtectedPtr(ScriptState* scriptState) 51 : m_globalObject(scriptState->globalData(), scriptState->lexicalGlobalObject()) 52{ 53} 54 55ScriptState* ScriptStateProtectedPtr::get() const 56{ 57 if (m_globalObject) 58 return const_cast<JSC::JSGlobalObject*>(m_globalObject.get())->globalExec(); 59 return 0; 60} 61 62 63ScriptState* mainWorldScriptState(Frame* frame) 64{ 65 JSDOMWindowShell* shell = frame->script()->windowShell(mainThreadNormalWorld()); 66 return shell->window()->globalExec(); 67} 68 69ScriptState* scriptStateFromNode(DOMWrapperWorld* world, Node* node) 70{ 71 if (!node) 72 return 0; 73 Document* document = node->document(); 74 if (!document) 75 return 0; 76 Frame* frame = document->frame(); 77 if (!frame) 78 return 0; 79 if (!frame->script()->canExecuteScripts(NotAboutToExecuteScript)) 80 return 0; 81 return frame->script()->globalObject(world)->globalExec(); 82} 83 84ScriptState* scriptStateFromPage(DOMWrapperWorld* world, Page* page) 85{ 86 return page->mainFrame()->script()->globalObject(world)->globalExec(); 87} 88 89#if ENABLE(WORKERS) 90ScriptState* scriptStateFromWorkerContext(WorkerContext* workerContext) 91{ 92 return workerContext->script()->workerContextWrapper()->globalExec(); 93} 94#endif 95 96} 97