Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 75 insertions, 0 deletions

diff --git a/Source/WebCore/history/BackForwardList.h b/Source/WebCore/history/BackForwardList.h
new file mode 100644
index 0000000..212eadd
--- /dev/null
+++ b/Source/WebCore/history/BackForwardList.h
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+/*
+ * Copyright (C) 2006, 2010 Apple Inc. All rights reserved.
+ * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
+ * Copyright (C) 2009 Google, 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. 
+ */
+
+#ifndef BackForwardList_h
+#define BackForwardList_h
+
+#include <wtf/Forward.h>
+#include <wtf/RefCounted.h>
+
+namespace WebCore {
+
+class HistoryItem;
+
+// FIXME: Rename this class to BackForwardClient, and rename the
+// getter in Page accordingly.
+class BackForwardList : public RefCounted<BackForwardList> {
+public: 
+    virtual ~BackForwardList()
+    {
+    }
+
+    virtual void addItem(PassRefPtr<HistoryItem>) = 0;
+
+    virtual void goToItem(HistoryItem*) = 0;
+        
+    virtual HistoryItem* itemAtIndex(int) = 0;
+    virtual int backListCount() = 0;
+    virtual int forwardListCount() = 0;
+
+    virtual bool isActive() = 0;
+
+    virtual void close() = 0;
+
+#if ENABLE(WML)
+    // FIXME: Rename this to just "clear" and change it so it's not
+    // WML-specific. This is the same operation as clearBackForwardList
+    // in the layout test controller; it would be reasonable to have it
+    // here even though HTML DOM interfaces don't require it.
+    virtual void clearWMLPageHistory()  = 0;
+#endif
+
+    // FIXME: Delete these once all callers are using BackForwardController
+    // instead of calling this directly.
+    HistoryItem* backItem() { return itemAtIndex(-1); }
+    HistoryItem* currentItem() { return itemAtIndex(0); }
+    HistoryItem* forwardItem() { return itemAtIndex(1); }
+};
+
+} // namespace WebCore
+
+#endif // BackForwardList_h