/* * Copyright (C) 2007, 2008 Apple 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: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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 "JSStyleSheet.h" #include "CSSStyleSheet.h" #include "JSCSSStyleSheet.h" #include "JSNode.h" // FIXME: Remove in next merge. #include "Node.h" using namespace KJS; namespace WebCore { JSValue* toJS(ExecState* exec, StyleSheet* styleSheet) { if (!styleSheet) return jsNull(); DOMObject* ret = ScriptInterpreter::getDOMObject(styleSheet); if (ret) return ret; if (styleSheet->isCSSStyleSheet()) ret = new JSCSSStyleSheet(JSCSSStyleSheetPrototype::self(exec), static_cast<CSSStyleSheet*>(styleSheet)); else ret = new JSStyleSheet(JSStyleSheetPrototype::self(exec), styleSheet); ScriptInterpreter::putDOMObject(styleSheet, ret); return ret; } void JSStyleSheet::mark() { Base::mark(); // This prevents us from having a style sheet with a dangling ownerNode pointer. // A better solution would be to handle this on the DOM side -- if the style sheet // is kept around, then we want the node to stay around too. One possibility would // be to make ref/deref on the style sheet ref/deref the node instead, but there's // a lot of disentangling of the CSS DOM objects that would need to happen first. if (Node* ownerNode = impl()->ownerNode()) { if (JSNode* ownerNodeWrapper = ScriptInterpreter::getDOMNodeForDocument(ownerNode->document(), ownerNode)) { if (!ownerNodeWrapper->marked()) ownerNodeWrapper->mark(); } } } } // namespace WebCore