/*

 * Copyright (C) 2007, 2009 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. 

 * 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.

 */

#include "config.h"

#include "PolicyDelegate.h"

#include "DumpRenderTree.h"

#include "LayoutTestController.h"

#include <string>

using std::wstring;

static wstring dumpPath(IDOMNode* node)

{

    ASSERT(node);

    wstring result;

    BSTR name;

    if (FAILED(node->nodeName(&name)))

        return result;

    result.assign(name, SysStringLen(name));

    SysFreeString(name);

    COMPtr<IDOMNode> parent;

    if (SUCCEEDED(node->parentNode(&parent)))

        result += TEXT(" > ") + dumpPath(parent.get());

    return result;

}

PolicyDelegate::PolicyDelegate()

    : m_refCount(1)

    , m_permissiveDelegate(false)

    , m_controllerToNotifyDone(0)

{

}

// IUnknown

HRESULT STDMETHODCALLTYPE PolicyDelegate::QueryInterface(REFIID riid, void** ppvObject)

{

    *ppvObject = 0;

    if (IsEqualGUID(riid, IID_IUnknown))

        *ppvObject = static_cast<IWebPolicyDelegate*>(this);

    else if (IsEqualGUID(riid, IID_IWebPolicyDelegate))

        *ppvObject = static_cast<IWebPolicyDelegate*>(this);

    else

        return E_NOINTERFACE;

    AddRef();

    return S_OK;

}

ULONG STDMETHODCALLTYPE PolicyDelegate::AddRef(void)

{

    return ++m_refCount;

}

ULONG STDMETHODCALLTYPE PolicyDelegate::Release(void)

{

    ULONG newRef = --m_refCount;

    if (!newRef)

        delete this;

    return newRef;

}

HRESULT STDMETHODCALLTYPE PolicyDelegate::decidePolicyForNavigationAction(

    /*[in]*/ IWebView* /*webView*/, 

    /*[in]*/ IPropertyBag* actionInformation, 

    /*[in]*/ IWebURLRequest* request, 

    /*[in]*/ IWebFrame* frame, 

    /*[in]*/ IWebPolicyDecisionListener* listener)

{

    BSTR url;

    request->URL(&url);

    wstring wurl = urlSuitableForTestResult(wstring(url, SysStringLen(url)));

    int navType = 0;

    VARIANT var;

    if (SUCCEEDED(actionInformation->Read(WebActionNavigationTypeKey, &var, 0))) {

        V_VT(&var) = VT_I4;

        navType = V_I4(&var);

    }

    LPCTSTR typeDescription;

    switch (navType) {

        case WebNavigationTypeLinkClicked:

            typeDescription = TEXT("link clicked");

            break;

        case WebNavigationTypeFormSubmitted:

            typeDescription = TEXT("form submitted");

            break;

        case WebNavigationTypeBackForward:

            typeDescription = TEXT("back/forward");

            break;

        case WebNavigationTypeReload:

            typeDescription = TEXT("reload");

            break;

        case WebNavigationTypeFormResubmitted:

            typeDescription = TEXT("form resubmitted");

            break;

        case WebNavigationTypeOther:

            typeDescription = TEXT("other");

            break;

        default:

            typeDescription = TEXT("illegal value");

    }

    wstring message = TEXT("Policy delegate: attempt to load ") + wurl + TEXT(" with navigation type '") + typeDescription + TEXT("'");

    VARIANT actionElementVar;

    if (SUCCEEDED(actionInformation->Read(WebActionElementKey, &actionElementVar, 0))) {

        COMPtr<IPropertyBag> actionElement(Query, V_UNKNOWN(&actionElementVar));

        VARIANT originatingNodeVar;

        if (SUCCEEDED(actionElement->Read(WebElementDOMNodeKey, &originatingNodeVar, 0))) {

            COMPtr<IDOMNode> originatingNode(Query, V_UNKNOWN(&originatingNodeVar));

            message += TEXT(" originating from ") + dumpPath(originatingNode.get());

        }

    }

    printf("%S\n", message.c_str());

    SysFreeString(url);

    if (m_permissiveDelegate)

        listener->use();

    else

        listener->ignore();

    if (m_controllerToNotifyDone) {

        m_controllerToNotifyDone->notifyDone();

        m_controllerToNotifyDone = 0;

    }

    return S_OK;

}

HRESULT STDMETHODCALLTYPE PolicyDelegate::unableToImplementPolicyWithError(

    /*[in]*/ IWebView* /*webView*/, 

    /*[in]*/ IWebError* error, 

    /*[in]*/ IWebFrame* frame)

{

    BSTR domainStr;

    error->domain(&domainStr);

    wstring domainMessage = domainStr;

    int code;

    error->code(&code);

    BSTR frameName;

    frame->name(&frameName);

    wstring frameNameMessage = frameName;

    printf("Policy delegate: unable to implement policy with error domain '%S', error code %d, in frame '%S'", domainMessage.c_str(), code, frameNameMessage.c_str());

    SysFreeString(domainStr);

    SysFreeString(frameName);

    return S_OK;

}