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+/*
+ * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
+ * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
+ *
+ * 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.
+ * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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 PolicyChecker_h
+#define PolicyChecker_h
+
+#include "FrameLoaderTypes.h"
+#include "PlatformString.h"
+#include "PolicyCallback.h"
+#include "ResourceRequest.h"
+#include <wtf/PassRefPtr.h>
+
+namespace WebCore {
+
+class DocumentLoader;
+class FormState;
+class Frame;
+class NavigationAction;
+class ResourceError;
+class ResourceResponse;
+
+class PolicyChecker : public Noncopyable {
+public:
+ PolicyChecker(Frame*);
+
+ void checkNavigationPolicy(const ResourceRequest&, DocumentLoader*, PassRefPtr<FormState>, NavigationPolicyDecisionFunction, void* argument);
+ void checkNavigationPolicy(const ResourceRequest&, NavigationPolicyDecisionFunction, void* argument);
+ void checkNewWindowPolicy(const NavigationAction&, NewWindowPolicyDecisionFunction, const ResourceRequest&, PassRefPtr<FormState>, const String& frameName, void* argument);
+ void checkContentPolicy(const String& MIMEType, ContentPolicyDecisionFunction, void* argument);
+
+ // FIXME: These are different. They could use better names.
+ void cancelCheck();
+ void stopCheck();
+
+ void cannotShowMIMEType(const ResourceResponse&);
+
+ FrameLoadType loadType() const { return m_loadType; }
+ void setLoadType(FrameLoadType loadType) { m_loadType = loadType; }
+
+ bool delegateIsDecidingNavigationPolicy() const { return m_delegateIsDecidingNavigationPolicy; }
+ bool delegateIsHandlingUnimplementablePolicy() const { return m_delegateIsHandlingUnimplementablePolicy; }
+
+ // FIXME: This function is a cheat. Basically, this is just an asynchronouc callback
+ // from the FrameLoaderClient, but this callback uses the policy types and so has to
+ // live on this object. In the long term, we should create a type for non-policy
+ // callbacks from the FrameLoaderClient and remove this vestige. I just don't have
+ // the heart to hack on all the platforms to make that happen right now.
+ void continueLoadAfterWillSubmitForm(PolicyAction);
+
+private:
+ void continueAfterNavigationPolicy(PolicyAction);
+ void continueAfterNewWindowPolicy(PolicyAction);
+ void continueAfterContentPolicy(PolicyAction);
+
+ void handleUnimplementablePolicy(const ResourceError&);
+
+ Frame* m_frame;
+
+ bool m_delegateIsDecidingNavigationPolicy;
+ bool m_delegateIsHandlingUnimplementablePolicy;
+
+ // This identifies the type of navigation action which prompted this load. Note
+ // that WebKit conveys this value as the WebActionNavigationTypeKey value
+ // on navigation action delegate callbacks.
+ FrameLoadType m_loadType;
+ PolicyCallback m_callback;
+};
+
+} // namespace WebCore
+
+#endif // PolicyChecker_h