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 #ifndef WebNodeCollection_h 32 #define WebNodeCollection_h 33 34 #include "../platform/WebCommon.h" 35 36 namespace WebCore { class HTMLCollection; } 37 #if WEBKIT_IMPLEMENTATION 38 namespace WTF { template <typename T> class PassRefPtr; } 39 #endif 40 41 namespace WebKit { 42 class WebNode; 43 44 // Provides readonly access to some properties of a DOM node. 45 class WebNodeCollection { 46 public: 47 ~WebNodeCollection() { reset(); } 48 49 WebNodeCollection() : m_private(0), m_current(0) { } 50 WebNodeCollection(const WebNodeCollection& n) : m_private(0) { assign(n); } 51 WebNodeCollection& operator=(const WebNodeCollection& n) 52 { 53 assign(n); 54 return *this; 55 } 56 57 bool isNull() const { return !m_private; } 58 59 WEBKIT_EXPORT void reset(); 60 WEBKIT_EXPORT void assign(const WebNodeCollection&); 61 62 WEBKIT_EXPORT unsigned length() const; 63 WEBKIT_EXPORT WebNode nextItem() const; 64 WEBKIT_EXPORT WebNode firstItem() const; 65 66 #if WEBKIT_IMPLEMENTATION 67 WebNodeCollection(const WTF::PassRefPtr<WebCore::HTMLCollection>&); 68 #endif 69 70 private: 71 void assign(WebCore::HTMLCollection*); 72 WebCore::HTMLCollection* m_private; 73 mutable unsigned m_current; 74 }; 75 76 } // namespace WebKit 77 78 #endif 79
