1 files changed, 143 insertions, 0 deletions
diff --git a/Source/WebCore/page/History.cpp b/Source/WebCore/page/History.cpp
new file mode 100644
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+++ b/Source/WebCore/page/History.cpp
@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 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 "History.h"
+
+#include "BackForwardController.h"
+#include "Document.h"
+#include "ExceptionCode.h"
+#include "Frame.h"
+#include "FrameLoader.h"
+#include "FrameLoaderClient.h"
+#include "HistoryItem.h"
+#include "Page.h"
+
+namespace WebCore {
+
+History::History(Frame* frame)
+    : m_frame(frame)
+{
+}
+
+Frame* History::frame() const
+{
+    return m_frame;
+}
+
+void History::disconnectFrame()
+{
+    m_frame = 0;
+}
+
+unsigned History::length() const
+{
+    if (!m_frame)
+        return 0;
+    if (!m_frame->page())
+        return 0;
+    return m_frame->page()->backForward()->count();
+}
+
+void History::back()
+{
+    go(-1);
+}
+
+void History::back(ScriptExecutionContext* context)
+{
+    go(context, -1);
+}
+
+void History::forward()
+{
+    go(1);
+}
+
+void History::forward(ScriptExecutionContext* context)
+{
+    go(context, 1);
+}
+
+void History::go(int distance)
+{
+    if (!m_frame)
+        return;
+
+    m_frame->navigationScheduler()->scheduleHistoryNavigation(distance);
+}
+
+void History::go(ScriptExecutionContext* context, int distance)
+{
+    if (!m_frame)
+        return;
+
+    ASSERT(WTF::isMainThread());
+    Frame* activeFrame = static_cast<Document*>(context)->frame();
+    if (!activeFrame)
+        return;
+
+    if (!activeFrame->loader()->shouldAllowNavigation(m_frame))
+        return;
+
+    m_frame->navigationScheduler()->scheduleHistoryNavigation(distance);
+}
+
+KURL History::urlForState(const String& urlString)
+{
+    KURL baseURL = m_frame->loader()->baseURL();
+    if (urlString.isEmpty())
+        return baseURL;
+        
+    return KURL(baseURL, urlString);
+}
+
+void History::stateObjectAdded(PassRefPtr<SerializedScriptValue> data, const String& title, const String& urlString, StateObjectType stateObjectType, ExceptionCode& ec)
+{
+    if (!m_frame || !m_frame->page())
+        return;
+    
+    KURL fullURL = urlForState(urlString);
+    RefPtr<SecurityOrigin> origin = SecurityOrigin::create(fullURL);
+    if (!fullURL.isValid() || !m_frame->document()->securityOrigin()->isSameSchemeHostPort(origin.get())) {
+        ec = SECURITY_ERR;
+        return;
+    }
+
+    if (stateObjectType == StateObjectPush)
+        m_frame->loader()->history()->pushState(data, title, fullURL.string());
+    else if (stateObjectType == StateObjectReplace)
+        m_frame->loader()->history()->replaceState(data, title, fullURL.string());
+            
+    if (!urlString.isEmpty())
+        m_frame->document()->updateURLForPushOrReplaceState(fullURL);
+
+    if (stateObjectType == StateObjectPush)
+        m_frame->loader()->client()->dispatchDidPushStateWithinPage();
+    else if (stateObjectType == StateObjectReplace)
+        m_frame->loader()->client()->dispatchDidReplaceStateWithinPage();
+}
+
+} // namespace WebCore