1 /* 2 * Copyright (C) 2009 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 "WebNodeCollection.h" 33 34 #include "core/dom/Node.h" 35 #include "core/html/HTMLCollection.h" 36 #include "wtf/PassRefPtr.h" 37 38 #include "WebNode.h" 39 40 using namespace WebCore; 41 42 namespace WebKit { 43 44 void WebNodeCollection::reset() 45 { 46 assign(0); 47 } 48 49 void WebNodeCollection::assign(const WebNodeCollection& other) 50 { 51 HTMLCollection* p = const_cast<HTMLCollection*>(other.m_private); 52 if (p) 53 p->ref(); 54 assign(p); 55 } 56 57 WebNodeCollection::WebNodeCollection(const PassRefPtr<HTMLCollection>& col) 58 : m_private(static_cast<HTMLCollection*>(col.leakRef())) 59 { 60 } 61 62 void WebNodeCollection::assign(HTMLCollection* p) 63 { 64 // p is already ref'd for us by the caller 65 if (m_private) 66 m_private->deref(); 67 m_private = p; 68 } 69 70 unsigned WebNodeCollection::length() const 71 { 72 return m_private->length(); 73 } 74 75 WebNode WebNodeCollection::nextItem() const 76 { 77 Node* node = m_private->item(m_current); 78 if (node) 79 m_current++; 80 return WebNode(node); 81 } 82 83 WebNode WebNodeCollection::firstItem() const 84 { 85 m_current = 0; 86 return nextItem(); 87 } 88 89 } // namespace WebKit 90