--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKit/win/WebBackForwardList.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,305 @@
+/*
+ * Copyright (C) 2006, 2007 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 "WebKitDLL.h"
+#include "WebBackForwardList.h"
+
+#include "COMPtr.h"
+#include "WebFrame.h"
+#include "WebKit.h"
+#include "WebPreferences.h"
+
+#include <WebCore/BackForwardList.h>
+#include <WebCore/HistoryItem.h>
+
+using std::min;
+using namespace WebCore;
+
+// WebBackForwardList ----------------------------------------------------------------
+
+static HashMap<BackForwardList*, WebBackForwardList*>& backForwardListWrappers()
+{
+    static HashMap<BackForwardList*, WebBackForwardList*> staticBackForwardListWrappers;
+    return staticBackForwardListWrappers;
+}
+
+WebBackForwardList::WebBackForwardList(PassRefPtr<BackForwardList> backForwardList)
+    : m_refCount(0)
+    , m_backForwardList(backForwardList)
+{
+    ASSERT(!backForwardListWrappers().contains(m_backForwardList.get()));
+    backForwardListWrappers().set(m_backForwardList.get(), this);
+
+    gClassCount++;
+    gClassNameCount.add("WebBackForwardList");
+}
+
+WebBackForwardList::~WebBackForwardList()
+{
+    ASSERT(m_backForwardList->closed());
+
+    ASSERT(backForwardListWrappers().contains(m_backForwardList.get()));
+    backForwardListWrappers().remove(m_backForwardList.get());
+
+    gClassCount--;
+    gClassNameCount.remove("WebBackForwardList");
+}
+
+WebBackForwardList* WebBackForwardList::createInstance(PassRefPtr<BackForwardList> backForwardList)
+{
+    WebBackForwardList* instance;
+
+    instance = backForwardListWrappers().get(backForwardList.get());
+
+    if (!instance)
+        instance = new WebBackForwardList(backForwardList);
+
+    instance->AddRef();
+    return instance;
+}
+
+// IUnknown -------------------------------------------------------------------
+
+HRESULT STDMETHODCALLTYPE WebBackForwardList::QueryInterface(REFIID riid, void** ppvObject)
+{
+    *ppvObject = 0;
+    if (IsEqualGUID(riid, IID_IUnknown))
+        *ppvObject = static_cast<IWebBackForwardList*>(this);
+    else if (IsEqualGUID(riid, IID_IWebBackForwardList))
+        *ppvObject = static_cast<IWebBackForwardList*>(this);
+    else if (IsEqualGUID(riid, IID_IWebBackForwardListPrivate))
+        *ppvObject = static_cast<IWebBackForwardListPrivate*>(this);
+    else
+        return E_NOINTERFACE;
+
+    AddRef();
+    return S_OK;
+}
+
+ULONG STDMETHODCALLTYPE WebBackForwardList::AddRef(void)
+{
+    return ++m_refCount;
+}
+
+ULONG STDMETHODCALLTYPE WebBackForwardList::Release(void)
+{
+    ULONG newRef = --m_refCount;
+    if (!newRef)
+        delete(this);
+
+    return newRef;
+}
+
+// IWebBackForwardList ---------------------------------------------------------
+
+HRESULT STDMETHODCALLTYPE WebBackForwardList::addItem( 
+    /* [in] */ IWebHistoryItem* item)
+{
+    COMPtr<WebHistoryItem> webHistoryItem;
+ 
+    if (!item || FAILED(item->QueryInterface(&webHistoryItem)))
+        return E_FAIL;
+ 
+    m_backForwardList->addItem(webHistoryItem->historyItem());
+    return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBackForwardList::goBack( void)
+{
+    m_backForwardList->goBack();
+    return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBackForwardList::goForward( void)
+{
+    m_backForwardList->goForward();
+    return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBackForwardList::goToItem( 
+    /* [in] */ IWebHistoryItem* item)
+{
+    COMPtr<WebHistoryItem> webHistoryItem;
+ 
+    if (!item || FAILED(item->QueryInterface(&webHistoryItem)))
+        return E_FAIL;
+
+    m_backForwardList->goToItem(webHistoryItem->historyItem());
+    return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBackForwardList::backItem( 
+    /* [retval][out] */ IWebHistoryItem** item)
+{
+    if (!item)
+        return E_POINTER;
+
+    HistoryItem* historyItem = m_backForwardList->backItem();
+
+    if (!historyItem)
+        return E_FAIL;
+
+    *item = WebHistoryItem::createInstance(historyItem);
+    return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBackForwardList::currentItem( 
+    /* [retval][out] */ IWebHistoryItem** item)
+{
+    if (!item)
+        return E_POINTER;
+
+    HistoryItem* historyItem = m_backForwardList->currentItem();
+
+    if (!historyItem)
+        return E_FAIL;
+
+    *item = WebHistoryItem::createInstance(historyItem);
+    return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBackForwardList::forwardItem( 
+    /* [retval][out] */ IWebHistoryItem** item)
+{
+    if (!item)
+        return E_POINTER;
+
+    HistoryItem* historyItem = m_backForwardList->forwardItem();
+
+    if (!historyItem)
+        return E_FAIL;
+
+    *item = WebHistoryItem::createInstance(historyItem);
+    return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBackForwardList::backListWithLimit( 
+    /* [in] */ int limit,
+    /* [out] */ int* listCount,
+    /* [retval][out] */ IWebHistoryItem** list)
+{
+    HistoryItemVector historyItemVector;
+    m_backForwardList->backListWithLimit(limit, historyItemVector);
+
+    *listCount = static_cast<int>(historyItemVector.size());
+
+    if (list)
+        for (unsigned i = 0; i < historyItemVector.size(); i++)
+            list[i] = WebHistoryItem::createInstance(historyItemVector[i].get());
+
+    return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBackForwardList::forwardListWithLimit( 
+    /* [in] */ int limit,
+    /* [out] */ int* listCount,
+    /* [retval][out] */ IWebHistoryItem** list)
+{
+    HistoryItemVector historyItemVector;
+    m_backForwardList->forwardListWithLimit(limit, historyItemVector);
+
+    *listCount = static_cast<int>(historyItemVector.size());
+
+    if (list)
+        for (unsigned i = 0; i < historyItemVector.size(); i++)
+            list[i] = WebHistoryItem::createInstance(historyItemVector[i].get());
+
+    return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBackForwardList::capacity( 
+    /* [retval][out] */ int* result)
+{
+    *result = (int)m_backForwardList->capacity();
+    return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBackForwardList::setCapacity( 
+    /* [in] */ int size)
+{
+    if (size < 0)
+        return E_FAIL;
+    
+    m_backForwardList->setCapacity(size);
+    return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBackForwardList::backListCount( 
+    /* [retval][out] */ int* count)
+{
+    *count = m_backForwardList->backListCount();
+    return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBackForwardList::forwardListCount( 
+    /* [retval][out] */ int* count)
+{
+    *count = m_backForwardList->forwardListCount();
+    return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBackForwardList::containsItem( 
+    /* [in] */ IWebHistoryItem* item,
+    /* [retval][out] */ BOOL* result)
+{
+    COMPtr<WebHistoryItem> webHistoryItem;
+
+    if (!item || FAILED(item->QueryInterface(&webHistoryItem)))
+        return E_FAIL;
+
+    *result = m_backForwardList->containsItem(webHistoryItem->historyItem());
+    return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBackForwardList::itemAtIndex( 
+    /* [in] */ int index,
+    /* [retval][out] */ IWebHistoryItem** item)
+{
+    if (!item)
+        return E_POINTER;
+
+    HistoryItem* historyItem = m_backForwardList->itemAtIndex(index);
+
+    if (!historyItem)
+        return E_FAIL;
+ 
+    *item = WebHistoryItem::createInstance(historyItem);
+    return S_OK;
+}
+
+// IWebBackForwardListPrivate --------------------------------------------------------
+
+HRESULT STDMETHODCALLTYPE WebBackForwardList::removeItem( 
+    /* [in] */ IWebHistoryItem* item)
+{
+    COMPtr<WebHistoryItem> webHistoryItem;
+ 
+    if (!item || FAILED(item->QueryInterface(&webHistoryItem)))
+        return E_FAIL;
+ 
+    m_backForwardList->removeItem(webHistoryItem->historyItem());
+    return S_OK;
+}