1 /* 2 * Copyright (C) 2010 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 "V8StyleSheet.h" 33 34 #include "V8CSSStyleSheet.h" 35 #include "V8Node.h" 36 37 namespace WebCore { 38 39 v8::Handle<v8::Value> toV8(StyleSheet* impl) 40 { 41 if (!impl) 42 return v8::Null(); 43 if (impl->isCSSStyleSheet()) 44 return toV8(static_cast<CSSStyleSheet*>(impl)); 45 v8::Handle<v8::Object> wrapper = V8StyleSheet::wrap(impl); 46 // Add a hidden reference from stylesheet object to its owner node. 47 Node* ownerNode = impl->ownerNode(); 48 if (ownerNode && !wrapper.IsEmpty()) { 49 v8::Handle<v8::Object> owner = v8::Handle<v8::Object>::Cast(toV8(ownerNode)); 50 wrapper->SetInternalField(V8StyleSheet::ownerNodeIndex, owner); 51 } 52 return wrapper; 53 } 54 55 } // namespace WebCore 56
