1 files changed, 132 insertions, 0 deletions
diff --git a/WebCore/wml/WMLPageState.cpp b/WebCore/wml/WMLPageState.cpp
new file mode 100644
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--- /dev/null
+++ b/WebCore/wml/WMLPageState.cpp
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+/*
+ * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
+ *
+ * Copyright (C) 2004-2007 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "config.h"
+
+#if ENABLE(WML)
+#include "WMLPageState.h"
+
+#include "HistoryItem.h"
+#include "KURL.h"
+#include "Page.h"
+
+namespace WebCore {
+
+WMLPageState::WMLPageState(Page* page)
+    : m_page(page)
+    , m_historyLength(0)
+    , m_activeCard(0)
+    , m_hasDeckAccess(false)
+{
+}
+
+WMLPageState::~WMLPageState()
+{
+    m_variables.clear();
+}
+
+void WMLPageState::reset()
+{
+    // remove all the variables in the current browser context
+    m_variables.clear();
+
+    // clear the navigation history state 
+    if (m_page)
+        m_page->backForwardList()->clearWmlPageHistory();
+
+    // reset implementation-specfic state if UA has
+    m_historyLength = 1;
+}
+
+bool WMLPageState::setNeedCheckDeckAccess(bool need)
+{
+    if (m_hasDeckAccess && need)
+        return false;
+
+    m_hasDeckAccess = need;
+    m_accessPath = String();
+    m_accessDomain = String();
+    return true;
+}
+
+// FIXME: We may want another name, it does far more than just checking wheter the deck is accessable
+bool WMLPageState::isDeckAccessible()
+{
+    if (!m_hasDeckAccess || !m_page || !m_page->backForwardList() || !m_page->backForwardList()->backItem())
+        return true;
+
+    HistoryItem* histItem = m_page->backForwardList()->backItem();
+    KURL url(histItem->urlString());
+
+    String prevHost = url.host();
+    String prevPath = url.path();
+
+    // for 'file' URI, the host part may be empty, so we should complete it.
+    if (prevHost.isEmpty())
+        prevHost = "localhost";
+
+    histItem = m_page->backForwardList()->currentItem();
+    KURL curUrl(histItem->urlString());
+    String curPath = curUrl.path();
+
+    if (equalIgnoringRef(url, curUrl))
+       return true;
+
+    // "/" is the default value if not specified
+    if (m_accessPath.isEmpty())  
+        m_accessPath = "/";
+    else if (m_accessPath.endsWith("/") && (m_accessPath != "/"))
+        m_accessPath = m_accessPath.left((m_accessPath.length()-1));
+
+
+    // current deck domain is the default value if not specified
+    if (m_accessDomain.isEmpty())
+        m_accessDomain = prevHost;
+
+    // convert relative URL to absolute URL before performing path matching
+    if (prevHost == m_accessDomain) {
+        if (!m_accessPath.startsWith("/")) {
+           int index = curPath.reverseFind('/');
+           if (index != -1) {
+               curPath = curPath.left(index + 1);
+               curPath += m_accessPath;
+               curUrl.setPath(curPath);
+               m_accessPath = curUrl.path();
+           }
+        }
+    }
+
+    // path prefix matching
+    if (prevPath.startsWith(m_accessPath) && 
+       (prevPath[m_accessPath.length()] == '/' || prevPath.length() == m_accessPath.length())) {
+        // domain suffix matching
+        unsigned domainLength = m_accessDomain.length();
+        unsigned hostLength = prevHost.length();
+        return (prevHost.endsWith(m_accessDomain) && prevHost[hostLength - domainLength - 1] == '.') || hostLength == domainLength;
+    }
+
+    return false;
+}
+
+}
+
+#endif