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| 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 | |
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